SFO - TTN
Find cheap flights from San Francisco to Trenton
Search hundreds of travel sites at once for deals on flights to Trenton. Bundle your flight + hotel and save!
SFO — TTN
Jan 24 — Jan 311
Round-trip
1 adult
Economy
From?
To?
Mon 1/24
Mon 1/31
When to book flights from San Francisco to Trenton
Estimated round-trip price
Average price per month
Flight prices as travel date approaches
Top tips for finding a cheap flight
- Looking for a cheap flight? 25% of our users found flights on this route for $152 or less one-way and $359 or less round-trip.
FAQs for booking flights from San Francisco to Trenton
Top airline flying San Francisco to Trenton Trenton-Mercer
Scores according to KAYAK customer reviews5.7
FrontierOverall score based on 40339 reviews
6.4Boarding
5.4Comfort
6.8Crew
4.6Entertainment
4.7Food
Airline reviews
Pros: "the plane, finally, got me where i needed to go"
Cons: "the ticket was only $47 but then i had to pay $39 for a carry on the only complimentary item given on the plane is water - they charge you for coffee the flight attendant was obnoxious, she kept making comments about how she couldnt give us anything for free the seats do not recline the air conditioning wasnt working but they loaded the plane up regardless and then after 30 minutes told us we could get off the plane while they look for the missing part that is 'somewhere' in the airport and they didnt know how long it would take for the part to be found and installed -- i dont understand why they would load people onto the plane if the plane was not working properly and they knew they needed to stall it was a very bad experience all in all"
Pros: "the plane, finally, got me where i needed to go"
Cons: "the ticket was only $47 but then i had to pay $39 for a carry on the only complimentary item given on the plane is water - they charge you for coffee the flight attendant was obnoxious, she kept making comments about how she couldnt give us anything for free the seats do not recline the air conditioning wasnt working but they loaded the plane up regardless and then after 30 minutes told us we could get off the plane while they look for the missing part that is 'somewhere' in the airport and they didnt know how long it would take for the part to be found and installed -- i dont understand why they would load people onto the plane if the plane was not working properly and they knew they needed to stall it was a very bad experience all in all"
Pros: "Quick boarding, but I think it was just so that they we not fined by the FAA"
Cons: "My flight was delayed over FOUR HOURS! My flight was supposed to take off at 2:53 pm and we didn’t leave SFO until 6:39 pm! I received a text message at 9 am telling me that the flight was delayed until 4:05 pm....okay, no problem, I had not left for the airport yet, so no biggie. At 10:48 am, I received another text that the flight was delayed until 3:35 pm...still not a problem. A couple of minutes later, another text. My flight is now on time. Still no problem, because I usually add in 30 minutes in case Murphy of Murphy’s law shows up and throws a wrench into things. I get to the airport with plenty of time to spare & clear security... then get a new text notification at 2:08 saying that the flight is delayed for FOUR HOURS!!! Are you kidding me? On top of that, the customer service representatives made an announcement that there was a maintenance problem with the original airplane and a new one was enroute to take up the slack. They said this as a statement and offered no apologies or sorry for the inconvenience. They stayed at the check in desk for an hour, and then left and didn’t come bac until 20 minutes before the plane arrived at the gate. I will NEVER fly this airline again!"
Pros: "The price was cheap, but the cost was great."
Cons: "The very 1st words I heard out of the mouth from the very 1st frontier employee I met was "this is going to be a bad day". When they checked my bag they never said thank you, for us flying with frontier. When boarding, the "bad day" employee treated the customers as if they were cattle. Not one stewardess smile the entire flight. And when I asked to stretch after using the facilities only 1 time during the 4 hour flight, I was told (in a very sarcastic voice) "as long as you don't come into our area!" Followed by a faded whisper of "shiiiiiiit". All this, plus a 3 hour delay. What more could you ask for? Next time, I'll pay a little more for the customer service."
Pros: "The price of the flight was great, but even with an upgraded seat I will not be flying Frontier again."
Cons: "I upgraded my girlfriend and I to stretch seating for our 5 hour flights roundtrip from ATL to SFO. I did not realize by upgrading and selecting my seat in row 4 that my seats do not recline. This caused several issues with my bad back and with the fold down tray on the seat in front of me. I had my laptop on the tray, and when the person in front of me leaned his seat back all the way suddenly, it pinched the top of the screen between the tray and the back of his seat and cracked my laptop exterior. The main issue was not being able to "stretch" by not having a reclining seat and experienced major discomfort and back pain both flights."
Pros: "Nothing"
Cons: "Our flight was delayed 2 hours leaving San Francisco going to Orlando. My mother checked a bag which cost $35. The ticketing agent picked up her bag and slammed it down on the conveyor belt. I was so shocked at the rough handling of my mothers belongings and the fact that the agent didn't give a care. My sister and I were charged $45 each for our carry-on bags. They began boarding us but the flight crew made us wait on the walkway to the plane for 15 minutes before they let us on the plane. The flight crew was rude and disorganized. The seats did not recline, next no padding and the chair back in front had no padding at all. There were no complimentary drinks or food provided on the 5 hr flight. We were threatened by the passenger behind us twice but no assistance was given by the flight crew. We are extremely disappointed and will never fly Frontier again. We should have paid the extra money to fly Delta from TPA which would have taken 2 hours off of our drive time. We visited Frontier's website which provides nothing but excuses for why they charge extra for EVERYTHING. Overall Frontier may have some of the cheaper flights but after you're done paying for the extras you may as well fly with a carrier that provides more comfort and better service. Frontier has lost our business."
Pros: "Cheap price but you definitely pay elsewhere. Watch out for extra charges for bags, seats, and beverages. Nice staff."
Cons: "Delayed flights to and from my destination and during lay overs. When I approached staff about my connecting flight I was told I would make it. Our plane taxied into the gate my connecting flight was docked at. We waited in the plane so my connecting flight could take off. In turn I wasn't pushed to a flight 5 hours later. I left my accommodations at 6:15AM. Due to layovers and delays I will not be home until 11:15PM. Also planes required "maintenance" each time and still had no running water and jammed overhead compartments."
Pros: "The airplane was clean."
Cons: "The seats were not reclinable and for a 3.5 hour flight in which I wanted to get in some sleep I was unable to sleep. Also the seats were very narrow and with almost no padding. I could feel the padding had wore off and my back was touching with the metal of the seat. Add all that up together and instead of a regular airplane seat it was like seating on a rigid chair for 3.5 hours. Moreover, since I couldn't sleep I decided to at least get in some work, but then I realized that the tray was so tiny that it can't even fit the smallest of laptops... I know it is a low cost airline, but paying for carry ons, checked bags, selecting seats and on flight beverages is plenty for a low cost airline. Frontier doesn't need to top it off with the most new uncomfortable seats possible. At least with Ryanair the seats are more comfortable, you can bring a carry on at no cost and the flight ticket is cheaper."
Pros: "I really appreciated that a supervisor credited me a full refund after I discovered mid-day before my 6:30 p.m. Sunday flight that the Frontier flight had been delayed, for no apparent reason, by nearly 4 hours, which would have gotten me into Denver at 1:45 a.m. Not acceptable, so I changed to a United flight, but the customer representative initially told me I could not get a refund (only a credit), but then the supervisor that I asked to speak with agreed to give me a full refund, and he was very polite and accommodating. I did appreciate that. Thank you."
Cons: "For no apparent reason, certainly not weather related, Frontier delayed their San Francisco to Denver flight nearly 4 hours, which would have gotten me into Denver at 1:45 a.m. This was unacceptable, so I switched to United, and it was much better and I got to Denver at the time Frontier was originally supposed to land. Thank you."
Pros: "Nothing"
Cons: "Flight from SFO to DEN was delayed. At check in i expressed concern about missing connecting DEN to PHL red eye (9min window) and was reassured that I "will make the flight." The flight arrived in Denver later than anticipated and the connecting red eye to PHL departed 5mins prior to landing. I was then placed on the next available flight- 5/29 at 6:55pm with arrival to PHL on 5/30 at 1am. No accomandations, re-routing options were given. I then attempted to file a complaint with the airline customer service number twice but both times no complaint was filed. The customer service rep promised to put me on an earlier flight to Trenton and refund my ticket. So I sat on the floor of the airport until ticketing opened at 4am where I was informed that no complaints were filed, I would not be refunded and the Trenton flight was not available. Also requests to retrieve my bag were ignored at the gate. I would have to spend the next 4 hours trying to locate it. I had to be in PHL today for work. I purchased a ticket on southwest."
Pros: "The airline agents had pleasant personalities."
Cons: "My travel experience with Frontier was frustrating. They seem like a new company that doesn't have a lot of experience running an airline business. The airline agents seemed inexperienced. I had a long wait in line to just drop my checked bag for my outgoing flight, and there were only a few people in line ahead of me. We were at least a half hour late taking off after the pilot said we would be in the air in a minute. During take off, the plane swerved in an alarming way I had never felt before. They only served complimentary water on my long flight to California, everything else you had to pay for. I had another long wait just to drop my checked bag for my return flight, first because there was no one at the Frontier counter for at least an hour after I arrived at the airport, then because the line moved very slowly. My return flight was delayed almost 2 hours, and when I boarded the plane and found the window seat I paid extra for, the flight attendant told me that my seat was taken by a family that wanted to stay together. She told me I could either break up the family or sit in a middle seat close by. I agreed to take the middle seat but it wasn't until I told her I paid for the window seat that she offered to find another window seat for me. In the end, the cheap ticket price wasn't worth it, after paying to check luggage both ways and paying for the window seat. I found myself wishing I would have gone with a different airline. I doubt I'll fly with Frontier again."
Pros: "Fast boarding. The crew were friendly, and clearly a lot of regular commuters and travelers were on this route. More like a local bus ride. The energy was positive and the process efficient."
Cons: "My seatbelt was damaged and old. The belt was twisted, the tension clamp did not work, and the stitching on the air bag sleeve ( I was in the 1st row) was coming out. The plane had a lot of interior pieces missing, trim pieces falling of, little holes etc. I realize that this doesn't impact the over all mechanical safety - yet if they can't even replace a seat belt or fix a piece of trim how do I know that the engines and flight computers are in good shape ? I am a product developer, marketer, and also a motorcycle rider. So I understand the stats, still I don't want a janky plane ride with broken pieces."
Pros: "The price was right. I see all these complaints about the pricing scheme and just think the people who bought these tickets didn't read anything while they looked for prices. It is clear on the website that carry-on and checked bags are added fees. Even with added fees for a carry-on/overhead bag this price was $200 less than the closest competitor. Ticket was purchased the day before the flight. Nice that Frontier is also in the TSA PRE-CHECK program for screening at the airport. That was a time saver for sure."
Cons: "Seats have NO padding. For a long red eye flight, this made for an uncomfortable TOTAL of 5 hours for the combined trip. People getting on maybe don't fly much because the boarding process was hectic AND long to complete."
Cons: "I checked in early online the night before my flight only to stand in line for 45-55 minutes to drop off my bag. They also didn't have anyone working the counters until about an hour and a half before my flight departure time. Myself and about 100 others were standing in line for about 20 minutes before anyone showed up to help us check in or take our bags. I was charged a seat fee for both of my flights ( I purchased a round trip ticket) I'm pretty sure that should have been included in my initial ticket purchase. To have a carry on requires an additional fee that is more expensive than it is to check a bag. The website said these charges were to give us the best ticket prices however with all the additional fees it was significantly more expensive than their competitors. I will not fly with Frontier again."
Pros: "I really enjoyed the camaraderie i shared with my fellow passengers. Adversity really brings people together."
Cons: "Frontier as a whole, I was unaware, is a 'not good' airline. Smallest seats I've yet experienced, no recline, no legroom. If you don't want to pay $35 to check a bag, it's cool they understand, they'll happily take $40 to let you carry a bag on. Well, not happily. More begrudgingly than happily. Customer service was poor, bordering on hostile from one sky waitress in particular. It's hard to blame the airline's employees for their poor attitude, as I would be disheartened and upset if I was surrounded by a plane-full of customers vowing to 'never fly frontier again'"
Pros: "Comfortable flight"
Pros: "I booked a RT ticket from FL to San Francisco. The idea was I fly my kids into SFO and travel together for vacation from there. My flight was delayed for hours then canceled. i booked a united flight for $70 one way to make my transfer to Asia with the kids. On the return I was concerned they may cancel the return leg. All was fine and I had 2 days in SF to unwind. Well mynreturn flight was also delayed 6 hours then canceled. Had 9 flights I. Asia with no problem vs both flights being can led. I have not slept in over 40 hours as a result. Will never fly this airline again."
Cons: "Extreme weather canceled the flight. Not the problem. No next flight without my 19 year-old daughter flying alone without having to sleep in tge airport in Denver. We did not accept this. 5 days later there was an open flight. I felt Frontier should have gone further to find another airline that could have beat the five day delay, or offered a hotel voucher for an overnight in Denver. We cancelled the trip and found another airline on our own. Getting a refund: frontier web info says refund, Frontier person on the phone said refund, but cancelation email says 90-day credit. Very inconsistent messaging and not at all in the favor of my daughter. We gave Frontier a try. Sadly disappointed."
Pros: "Nothing -a nightmare trip - delayed 6 hrs in Dia -also waited 2hrs for wheelchair-dirty airplane -diaper under seat & crumbs not cleaned after paying for seat, luggage, food even water,( none of which was mentioned in booking) tips, taxi(no buses to late) cost me over $200 no service on airline. Midnite when arrived SF so no buses to Petaluma so more $ to get there At 81 yrs old I do not like to see such poor mgt No pilots, no crew, no info- was sent to 8 gates from 4 to 10 o"clock no wheelchair- I was at airport at noon- and did not see a bed until 2:30 in morning Have never had treatment like this in my life time and I have gone via Frontier many times to Minot ND HNY Ferne Axelsen"
Pros: "The flight attendant offered me trail mix as compensation for my seat mix up."
Cons: "I booked my flight then reserved and paid for my seat a few days later on Dec. 4th (a month before my flight). I chose an exit window seat because it was a red eye and I wanted to be as comfortable as possible. I received a confirmation email with my seat number. The day of my flight I checked in online and they made me choose a different seat than the one I had already chosen. I again chose a window exit seat but had to pay a difference of $4. I got on the plane looking for my seat 11A only to discover that there was no row 11. They put me in a non-exist row! They then asked me to sit in an aisle seat because that was the only one left. The flight attendant told me to go to the desk when we landed and get a seat refund. I got to the desk to meet a very unfriendly woman. I told her my situation and she told me I would have to call customer service. Never flying Frontier again! How could I possibly be assigned a seat that didn't exist?! I talked to some other people and they said the same thing happened to them."
Pros: "Literally nothing. Absolutely a hellish, terrible nightmare experience in every way."
Cons: "- Frontier literally just threw everyone's bags from over 10 different flights in a giant mess all over the airport. And then was extremely rude to their customers about it. I can't even make this up. - Frontier unloaded bags from multiple flights on the same baggage claim section, and would only partially load certain flights. For instance, they only loaded 1/2 of the bags from my San Francisco flight, and I had to wait a whole day to get my bag bag in a giant mess of bags. - People had been waiting in line for literally 4 hours to talk to someone and when I finally got to the customer service desk she was making small talk and giggling and told me to go to the back of the line and said "well you can keep on waiting" when I said maybe she should have more of a sense of urgency for these poor travelers stuck in the airport literally all day and night. This was also the person in charge of the bags - a catch employee! - They told me they would give me a refund for my cancelled flight and refused to give me a receipt for my refund. They said "we don't give receipts." - Seats were extremely tiny and uncomfortable. - When we landed at the gate we had to stay on our plane for over 1.5 HOURS just waiting to get off because there wasn't a gate available. - They made no effort to reschedule me after my flight was cancelled."
Pros: "Not only were my fiancé and I hit with $130 in fees for baggage, the night prior we decided to upgrade our seats to row 1 for extra leg room for an additional $90. Little did we know for that price we'd be jeopardizing the ability to reclining our seats...on a red eye flight. I'm incredibly disappointed in frontier. I use to fly them frequently to/from SFO to the Midwest and the quality of service has decreased tremendously! These additional fees you tack on are taking advantage of customers and unethical. My family and I will not be flying with Frontier again."
Cons: "Seats not reclining, not very comfortable. To be told I had to Pay for my tiny bag to check instead of taking on plane. If I took it to the gate it would cost 60 to check at gate. Then to only be offered free water on the flight when I paid a lot for my one way flight. It seemed like a slap in the face to be told frontier is growing so fast and opening in new cities with 120 planes ordered, but they can't offer you a free juice and maybe some pretzels. I always liked frontier mainly because they were based out of Denver, but it feels like money is the only driving factor now. I fly a lot but doubt I'll fly frontier again."
Pros: "Ticket price"
Cons: "Everything else. Horrendous customer service. Two legs of the flight were delayed for hours (both for mechanical reasons). They had no other flights to my destination but they would not rebook through another carrier (there were nearly a dozen flights on other carriers) or refund my money. They do not recognize FAA Rule 240 (which I know they don't have to but most airlines do under these circumstances). They looked at me like I was speaking Chinese. I spend 9+ hours at the Denver airport through no fault of my own and I got to my destination at 3:00 am the following morning (instead of the originally scheduled 10:50pm -the night before - arrival time)."
Pros: "nothing"
Cons: "This deserves a negative star. Cut-rate experience in every way. Luggage took over an hour at DIA, and my bag didn't come out. I went to the luggage desk and they said to fill out a form and they'd get back within 48 hours. Extremely rude and disinterested treatment. They couldn't even check whether my bag made the flight etc?. After persisting they said to check ALL the carousels at DIA - it turned up on another carousel. Unpleasant way to begin my vacation - won't use them again. It also wasn't clear at booking that carry-ons are charged."
Cons: "Frontier made it very clear that it does not value its customers. I arrived a whopping 3.5 hours early to my flight from San Fransisco to Denver. I proceeded through security and my online boarding pass wouldn't scan. I was sent back to the check-in desk where I was met with 4 non-operating kiosks, a vacant check-in counter, and a sign saying they would re-open 2 hours later. What! I was soon joined by many many others who were sent back from security for the same reason. Some people had printout boarding passes that wouldn't scan at security! This was all on a Sunday afternoon, busy busy time for travel. Other complaints that severely impacted my travel experience: 1) Did not send me a flight reminder email or a boarding pass confirmation email. 2) At online check-in, Frontier charged me for my seat. The seat I already paid for! Frontier would not issue my boarding pass until I paid for my seat. That I already paid for. 3) Frontier charged me $30 for my carry-on. Get a clue Frontier! 4) The seats did not have headrests and the legroom was the smallest ever! I don't know how adult-sized people fly Frontier comfortably. 5) Frontier charges for snacks and drinks on the plane. Nothing is complimentary. Again, get a clue Frontier! I will never fly Frontier again."
Pros: "Not the strangers sleeping in my armpits."
Cons: "The worst part was we landed at 9:30 and did not get our checked bags until 11:30! We stood around for 2 hours!!!!! They said they were already 45 minutes behind to start with. How do you get that behind? You have to pay for everything, including coffee and water. We paid to check our bags at $25 online because they charge $30 for carry on. After waiting two hours for our checked bags, I sure wish I would have splurged on that $5.00! Even though we bought two tickets, to sit together we would have had to pay more, so I got the nightmare of a girl asleep in my armpit on one side and another guy on other side snoring and legs spread out across my chair. Virgin was only $40 more, would have been worth it in end!"
Pros: "The staff on the flight were very friendly"
Cons: "The takeoff time for the flight seemed to be delayed by people trying to fight over overhead carryon space. There isn't much the airline could do. I spoke with customer service on the phone multiple times on the flight regarding various issues. They were able to help on about half of them. Response time was extremely long and trying to get a hold of someone was nearly impossible (When through a bunch of prompts to discuss issues with a computer instead of a real person. Yes I tried pressing "0" every chance I could to be redirected)"
Cons: "Two of my checked bags were lost. One I needed for a presentation at work. The other was needed for my backpacking gear. The bags were lost on Sunday morning. I needed both bags on Monday by 9am. I was finally told the bags would be delivered at 10am Monday and could take up to 4 hours to arrive. My presentation at work was a disaster as I only had half of the material I needed. And now it is 10am on Monday I am suppose to be heading to Tenessee with a large group of children for a backpacking trip and I'm trapped at home with no gear. This mistake is now effecting at least 10-15 families whose children I'm suppose to take into the wilderness. Bags get lost. I get that. Frontier has offered no compensation and barley an apology. I will never fly with this company again. I guess you get what you pay for. Very disappointed."
Pros: "Low fare was nice.. but the subsequent nickel-and-diming business practices left a bad taste in our mouths. No in-flight entertainment or proper meal options either. A gate change was poorly communicated, and passengers from 2-3 flights were congregating in the gate trying to decipher the poorly written message (illogical, broken English) on the display behind the agent's desk. That agent was nice enough, but she seemed very untrained and incapable of handling the situation. The boarding gate agent was even worse (see other review)."
Cons: "When asked, the boarding gate agent told us the boarding door was "closing in 1 minute" so that we would hurry up and board. We did, then while waiting in line on the jet bridge, we noticed on our boarding passes that there was another 18 minutes scheduled for boarding. This was infuriating because we wanted to stop by the grab-and-go cafe next to the gate, to pickup food for the cross-country flight (SFO>ATL), especially since Frontier does not offer proper meals onboard. We turned around and confronted the agent about this, and she admitted that she lied to us so that we would board. Lying to customers for any reason is totally unacceptable, and we won't forget this."
Cons: "I booked this flight because it seemed an unbelievable value. Well, the price was, indeed, too good to be true. Upon receiving the reminder to book, I discovered they charge not only for checked in bags but for carry-ons. Oh, and they charge more if you don't book more than 24 hours in advance. Oh, and they charge for choosing your seat (that I didn't go for). The food for purchase stinks (only bad snacks for a four hour flight), the seats are uncomfortable, it did take off and arrive on time, I'll give it that. But after adding on $120 for my checked carry-on fee, it was no bargain, I will never fly this airline again."
Pros: "I arrived alive, but that's about it."
Cons: "Over an hour delay in leaving SFO due to poor management (the passengers deplaning from our plane had been kept on the Tarmac for 2 hours before being release b/c Frontier could not find a gate for them). Then a 2 hr 20" flight took 20" longer. To add insult to injury, we were ot offered so much as a glass of water but would be allowed to purchase one. There was a lengthy delay deplaning as we allowed the passengers with connecting flights (half the plane) to deplane first. The we waited over an hour to claim our baggage, after the carousel was changed 3 times. I will not fly Frontier again!"
Pros: "I didn't like anything about traveling with Frontier."
Cons: "Upcharge for Seats, Upcharge for Checked Bags, Upcharge for Carry Ons, Upcharge for Water. They charge you for water. That seems illegal. The flight was delayed, the gate was changed. We had to change gates which means we had to go through security twice. The staff blamed everyone and everything else (even the passengers) for all the issues and took ZERO responsibility for anything. I can't believe they are still in business with this level of customer service. The flight attendants were ghetto too. Making light of a bad situation by saying the worst things possible. Total embarasment transfer. I'll never fly Frontier again and will think twice about booking travel with Kayak."
Pros: "Co-pilot who had to explain to passengers why so many flaws occurred in this flight, she tried to be humorous."
Cons: "Flight 1884 out of SFO was doomed from the beginning starting with a notice (thanks Kayak) via email that the flight would be 1 hour late. Then, the Departure board at the airport totally dropped the flight, Then (again thru Kayak) I read that the flight would NOT board in terminal 1, Gate 21, Domestic terminal, but ar gate A3 in the International terminal. We all had to exit domestic and go to international and again through TSA. Then the flight departed another 30 minutes late finally over 2 hours LATE! Upon arrival at Phoenix the plane taxied too far away from the exit ramp-another 40 minutes before we could depart. It was an awful flight experience. Did they offer a free soda or anything for inconvenience we experienced-NOT A THING!"
Cons: "Frontier charges for everything. At check-in the attendant told me I could either bring my bag on the flight for $45 or check it for $40. I wish I knew all this before booking my ticket. I would've just paid extra for a different airline. At least I would've had better service. Every Feontier employee I came into contact with was either jaded or grumpy, as if hey hated their jobs, which made the experience even worse. All of my flights were delayed for whatever reason, and dealing with the staff made the experience that much worse. Most of them were so rude!"
Pros: "Great pilot, the plane hit some sever turbulence as we approached Denver International airport. I wasn't concerned since this was a new aircraft but if it was an older one it would have sustained structural damage. The pilot aborted the landing and flew over Denver and came in from a different direction. Everyone on the plane cheered when the pilot landed the plane safely."
Cons: "I was charged a fee to select a seat, not one with more leg room just any seat. Also, I was charged $40. for just one carry on. In addition on this new AIRBUS 320 the seats are so close together in the rows that they should issue a warning that if you are taller than 6 ft. 3 in. you won't be able to sit in the seat because your knees will be in contact with the seat in front of you. I'm 6 ft. 4 in. so luckily this was only a 2 hour flight. I also choose an aisle seat so I could put my feet in the aisle."
Pros: "Absolutely nothing"
Cons: "Hidden fees (you pay to pick your seat! you pay for carry on!) jacked the price of this flight up $100. Would have appreciated knowing that these fees existed before booking. Customer Service was nonexistent. Absolutely NOBODY could change my ticket after 12 hours of delays made it impossible for me to make it to my connecting flight to my final destination. I tried the customer service center, the gate, calling corporate, the gate again, customer service again. NOBODY COULD DO IT! I am still in Denver and have not made it to my final destination."
Pros: "The flight was relatively short, and once we boarded we moved out pretty quickly. Bags were delivered quickly as well at the end of the flight"
Cons: "THe flight was delayed by close to two hours, but more surprising was the amount of extraunexpected money we had to spend for basics-close to $30.00 each to "pick" seats, $130.00 each for baggage (yes you have to pay for any luggage beyond one personal item like a purse), money for food, etc. There are not even basics on the lfight such as blankets, and the seats don't recline. Overall, not an airline I would choose again as the "bargain" price turns out to be full of hidden costs that weren't clearly explained upfront"
Cons: "Multiple delays, poor communication from staff, flight was moved to a different terminal (international) but no staff member went around to notify sleeping passengers (this occurred around 1am but other passengers woke up those sleeping at the original gate, had to walk from domestic to international due to the late hour, flight cancelled at 3:30 in the morning, first told crew timed out then that since original delay for the crew was weather related that the passengers are not 'entitled to compensation' and that we were 'invited to stay and sleep at the gate' while crew was off duty, multiple phone calls to customer service yielded minimal results, airline reimbursed hotel but NOT transportation up to $150 but passengers had to identify hotels at 3:30-4am without assistance (can't find a hotel at that hour or that rate near SFO, rescheduled flight was then delayed over 2 hours, gate agents unable to use computer system or print and almost denied boarding after their attempt to check myself and the rest of our party in accidentally removed us from the seat map"
Pros: "I made it alive"
Cons: "Everything else. We left late (couple hours), the attendents said looking like a 7:15 departure... No update...8:10 departure, ran out of the snack items we wanted, no wifi, uncomfortable chair, no entertainment, arrived but then sat on Tarmac, again attendent said just a few minutes but 25 later we moved to gate just to wait for the crew that wasn't there yet. Seemed really super unorganized and would have been better if they just told us straight up how long it was going to take. Cost me a whole bunch of money. I would have just flown the next day and skipped a night at a hotel, a car rental, taxis and we were so late we didn't even get to eat before bed. Absolutely the worst flight ever. Hard to believe since it is only two hours and I travel a lot! Won't be traveling Frontier again."
Cons: "Told at the checkin desk it's $35 per person to "confirm our seats" -- two in the exit row as all that remained. Why? I paid $250 per person to confirm I wanted on the aircraft. I showed up 1.5 hours early to check in. Also told at the desk it's $40 per checked bag ($45 per carry on!). So when I get to the airport I'm forced to pay $150 more, just to fly to my destination. Credit card only. The lady checking in next to me paid me cash so I'd help her pay her extra fees. Not how to treat your customers. That's what I call a scam. If all this was in the small print, I missed it, and it was tough to find, having booked through Kayak. Won't be duped again. Goodbye, Frontier."
Pros: "Frontier airlines boarded relatively smoothly and there was sufficient room for my carry-on luggage. Even though I didn't pay for a seat assignment, my wife and I were seated together. The crew was generally friendly and cooperative."
Cons: "Hidden fees are a deal-breaker for me here. They try to get you to pay for seat assignments, although you don't have to. If you don't pay for a seat assignment, there is a risk you may not be seated with the rest of your party. You do have to pay to bring a carry-on, which I didn't realize. The added cost of $40 (if you pay in advance, $55 if you forget and pay at the airport) to carry on a piece of luggage that is typically free makes this far less of a bargain than advertised. I felt misled and taken advantage of. Since we realized this the day before our flight, my wife and I shared one carry on to keep the cost down. For us, the tickets ended up costing $80 more than I realized. If we had each had our own carry on, the total added cost would be $160 which seems like quite a ripoff."
Pros: "even though we left an hour late, we still arrived at our destination on time."
Cons: "our flight left about an hour late; we were told our exit row seats would recline (but they didn't); no in-flight entertainment; very uncomfortable and couldn't sleep on the red-eye as i am able to with other airlines. also, had to pay $40 per luggage to check in (vs $45 to carry on) - however, we saved about $150 total flying frontier (bag checked included) vs other airlines. it was annoying though that we weren't able to easil add bags to our itinerary upon checkout on this site. BIGGEST disappointment was that frontier did not participate in TSA-pre check, which i suppose was fine for this flight since we left an hour late, anyway."
Pros: "Didn't like the "bait and switch " tactics Feontier does. Having to pay for a seat assignment and for brining a bag was ridiculous. The total cost of round trip seat assignment and bag charges was $122.00!!! This add-on was never mentioned in the price shown on Kayak's site. This add-on was an extra 31% of the "advertised" price shown on Kayak! This important information should have been mentioned on the comparative quote given so a more realistic price comparison decision could be made. I won't be using Frontier again."
Pros: "Enjoyed the crew and their jovial nature. Very friendly all around. Prices are great, but alas you get what you pay for in the end."
Cons: "The seats are extremely cramped. Granted I'm a bit of a bigger person the super small guy next to me couldn't keep from jabbing me with their elbow or bumping knees on occasion. There's also minimal leg room and almost not enough space to be able to get something out of the bag you put under the seat in front of you. On both flights I was on the "air conditioner" didn't seem to work. As in it put out air but it was not cool air. On the return flight we ended up having to wait over an hour to get our baggage at an airport that was significantly smaller that the one we had flown into before."
Pros: "clean plane"
Cons: "I haven't flown Frontier in a while. I didn't realize I have to buy my seat too? What the heck is that? Sure it's only another $13 min. But here's the catch, you get a seat They've replaced the pull down table with a small flip down "table" that is about 1/3 the size of a standard table. While this does offer more legroom, it makes eating difficult and uncomfortable. I could not rest a standard square salad container on it during the flight. Luckily, I had a plastic bag from the vendor that I could put over my slacks to act as a big placemat. I didn't want to spill dressing on my pants. No WIFI onboard In short, I will be avoiding Frontier in the future. I do fly budget airlines like SW, but at least the attitude there is better. And what you get is clear."
Pros: "Pretty much nothing."
Cons: "The fact that you have to pay for a seat - any seat - and carry on, and water, for God's sake. Unreal. Rude flight crew ("take your body parts out of the aisles"), incompetent and rude boarding crew (completely ignoring boarding order, except to make one elderly Asian man leave the line - while clearly letting everyone else board in whatever order they pleased.) Horrible plane - ridiculously uncomfortable seats, no legroom at all. I am 5'10", healthy and middle-aged, and sat with my legs crunched for 4 1/2 hours, leaving me almost unable to walk after the flight. I will never ever fly Frontier again if I can help it. And I will absolutely tell everyone I can not to either. Awful experience."
Cons: "Your check in on line is too confusing. Too much advertising mixed in with the check in process. Your food and beverage service SUCKS. No snacks or drinks unless you pay. Prices are rediculas for a drink. One little bag of peanuts or crackers and a soda is not too much to ask. We already pay too much for the ticket and luggage fees now we have to pay for a snack and drink. This may be my last frontier flight. And when are you going to get a better boarding system so I don't have to crawl across two people to get to my seat??"
Pros: "Nothing"
Cons: "Start with paying for a carry-on, which made this "cheap" flight as expensive as a better airline. And paying for a seat assignment?! Didn't get a chance to experience paying for water onboard, as the entire flight was cancelled. Thanks to their lack of connection to other airlines, they couldn't get us where we were going prior to our RETURN date. So our lodging, car rental, etc all were completely wasted, at our expense - no vacation, but still had to pay for it. "Nothing we can do, sorry, it's the weather..." Really?! Weather explains a delay, not torpedoing the entire vacation. This airline is the absolute pits."
Pros: "I'm typically on the Thursday flight from SFO to ORD. For the most part the flight has departed on time and arrived into Chicago early or ahead of scheduled arrival. The seats and space is comfortable. The price is also very competitive over all. The planes have generally been clean. I like the early flight time from SFO and option to arrive into ORD at a reasonable hour."
Cons: "Flight crew is generally rude, and unfriendly. You can notice the difference in professionalism between the flight crew on American Air or Virgin than Frontier. The take off/and landing is not the smoothest, and the navigation through turbulence is poor. The customer service agents at the airports have been rude. I was in the airport security line for over an hour. I had asked an Customer Service rep for help that was walking by to avoid missing my flight. The person ignored me and continued walking. The service charge for carry on is not favorable. I dislike arriving early into Chicago and having to wait on the run way for over 15-20 min before we can get to a gate. Defeats the early arrival."
Cons: "I had a pretty unpleasant experience with Frontier on 12/21/15. Rain in San Francisco caused flight delays. Go figure. Frontier kept us waiting for six hours then cancelled the flight. They were rude; they didn't help their customers, including families with kids, get on other airlines; said they would try to getpeople out of SFO in the next couple days! When I realized I would not get to the wedding I was trying to attend, they siad they wouldn't refund my money' When I insistedon a refund they then said there would be a $19.99 cancellation fee. Eventually, they agreed on a refund. Pretty poor way to run a business. On the other hand, when I needed to cancel my Enterprise car rental, I was able to do it in less than two minutes over the phone - no hassle."
COVID-19 information
Safety measures for airlines flying from San Francisco to Trenton
Airlines flying from San Francisco to Trenton have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.
Heightened sanitation
Daily cleaning, installation of cabin HEPA filters on flights from San Francisco to Trenton
Mandatory masks
Masks required on board, masks provided on flights from San Francisco to Trenton
Social distancing seating
Middle seats unavailable to book on flights from San Francisco to Trenton
Pre-flight testing
Testing for antibodies, testing for symptoms for flights from San Francisco to Trenton
Flexible cancellations
Waiving of change fees. Search flexible flights from San Francisco to Trenton
Book cheap flights from San Francisco to Trenton
Recent round-trip flight deals
5/2Mon
2 stopsMultiple Airlines
10h 46mSFO-TTN
5/3Tue
1 stopMultiple Airlines
9h 21mTTN-SFO
$238
5/2Mon
2 stopsMultiple Airlines
16h 14mSFO-TTN
5/3Tue
2 stopsMultiple Airlines
16h 01mTTN-SFO
$258
5/4Wed
2 stopsMultiple Airlines
13h 58mSFO-TTN
5/5Thu
2 stopsMultiple Airlines
18h 54mTTN-SFO
$265
5/3Tue
2 stopsFrontier
17h 24mSFO-TTN
5/4Wed
1 stopFrontier
9h 21mTTN-SFO
$268
5/2Mon
2 stopsMultiple Airlines
10h 46mSFO-TTN
5/5Thu
1 stopMultiple Airlines
9h 21mTTN-SFO
$270
5/4Wed
2 stopsMultiple Airlines
10h 46mSFO-TTN
5/5Thu
1 stopMultiple Airlines
9h 21mTTN-SFO
$275
5/2Mon
2 stopsMultiple Airlines
16h 14mSFO-TTN
5/4Wed
2 stopsMultiple Airlines
21h 45mTTN-SFO
$278
5/3Tue
2 stopsFrontier
19h 41mSFO-TTN
5/5Thu
1 stopFrontier
9h 21mTTN-SFO
$285
5/2Mon
2 stopsMultiple Airlines
10h 46mSFO-TTN
5/4Wed
3 stopsMultiple Airlines
20h 50mTTN-SFO
$293
5/2Mon
2 stopsMultiple Airlines
13h 58mSFO-TTN
5/5Thu
2 stopsMultiple Airlines
18h 54mTTN-SFO
$296
5/3Tue
2 stopsMultiple Airlines
18h 38mSFO-TTN
5/4Wed
2 stopsMultiple Airlines
20h 41mTTN-SFO
$303
5/2Mon
1 stopMultiple Airlines
13h 15mSFO-TTN
5/3Tue
1 stopMultiple Airlines
9h 21mTTN-SFO
$308
5/3Tue
2 stopsFrontier
13h 42mSFO-TTN
5/5Thu
2 stopsFrontier
18h 54mTTN-SFO
$319
5/3Tue
1 stopMultiple Airlines
13h 15mSFO-TTN
5/5Thu
1 stopMultiple Airlines
9h 21mTTN-SFO
$341
5/1Sun
2 stopsFrontier
15h 21mSFO-TTN
5/3Tue
1 stopFrontier
9h 21mTTN-SFO
$359
5/1Sun
2 stopsFrontier
15h 21mSFO-TTN
5/5Thu
1 stopFrontier
9h 21mTTN-SFO
$392
5/19Thu
1 stopFrontier
11h 08mSFO-TTN
5/23Mon
1 stopFrontier
11h 17mTTN-SFO
$449
6/12Sun
1 stopFrontier
11h 08mSFO-TTN
7/1Fri
1 stopFrontier
11h 17mTTN-SFO
$539
6/23Thu
1 stopFrontier
11h 08mSFO-TTN
6/27Mon
1 stopFrontier
11h 17mTTN-SFO
$629
Search by stops
Search by airline
Search by price
Recent one-way flight deals
2/24Thu
3 stopsFrontier
24h 32mSFO-TTN
$210
5/22Sun
1 stopFrontier
11h 08mSFO-TTN
$231
5/25Wed
3 stopsFrontier
23h 21mSFO-TTN
$266
5/22Sun
3 stopsFrontier
22h 05mSFO-TTN
$280
3/4Fri
3 stopsFrontier
24h 37mSFO-TTN
$310
3/3Thu
3 stopsFrontier
35h 07mSFO-TTN
$316
4/3Sun
3 stopsFrontier
19h 26mSFO-TTN
$323
5/20Fri
3 stopsFrontier
22h 05mSFO-TTN
$336
3/25Fri
3 stopsFrontier
25h 03mSFO-TTN
$358
2/25Fri
3 stopsFrontier
21h 38mSFO-TTN
$365
5/24Tue
3 stopsFrontier
30h 59mSFO-TTN
$376
3/9Wed
3 stopsFrontier
35h 07mSFO-TTN
$388
3/25Fri
3 stopsFrontier
31h 04mSFO-TTN
$442
3/16Wed
3 stopsFrontier
35h 07mSFO-TTN
$498
3/26Sat
3 stopsFrontier
20h 57mSFO-TTN
$505
Search by stops
Search by airline
Search by price
San Francisco - Trenton Flights
Departure:
San Francisco (SFO)United States
Destination:
Trenton (TTN)United States
Return flight deals:
Cabin classes:
$359
Browse destinations:
$295