Find cheap flights from Buffalo to Denver

BUF - DEN

Find cheap flights from Buffalo to Denver

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Round-trip
Economy
Buffalo (BUF)
Denver Intl
Wed 5/19
Wed 5/26
Any month
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Good to know

Low season

NovemberBest time to beat the crowds with an average 34% drop in price.

High season

FebruaryMost popular time to fly with an average 31% increase in price.

Average price round-trip

$259(avg. price over the last 2 weeks)

Good deal round-trip

$157or less

Good deal one-way

$110or less

When to book flights from Buffalo to Denver

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 $110 or less one-way and $157 or less round-trip.
  • The cheapest flight from Buffalo to Denver was found 85 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be January, February and March. The cheapest month to fly is November.
  • Morning departure is around 2% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for booking flights from Buffalo to Denver

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Top 5 airlines serving Buffalo to Denver Intl

Scores according to KAYAK customer reviews

8.1
JetBlue
Overall score based on 19,509 reviews
8.3
Boarding
8.2
Comfort
8.6
Crew
7.9
Entertainment
7.8
Food
Airline reviews

Cons: "Three gate changes and then delays of ramp connecting to plane. It was ok"

Cons: "Left 5 hours late. Not notified til I left for airport. Sat on the plane almost 90 minutes before we took off. Flight was good"

Pros: "Someone greeted me ..."
Cons: "For the check-in crew to be more enthusiastic, helpful, engaging and going above and beyond for their clients…"

Cons: "Tv’s were fickle and my other seat had no audio."

Pros: "Everything was great!"

Pros: "Although there was an issue with a passengers’ dog(who ultimately had to be asked off, before we could leave). It was handled quickly and our flight departed on time."
Cons: "The entertainment didn’t work/have a signal until our descent to land."

Pros: "Everything is always great on Jetblue"
Cons: "n/a"

Cons: "Wonderful wheel chair service."

Cons: "Just flying with no 3h delays."

Pros: "Crew was great."
Cons: "Everything was fine. It was a smooth trip to Denver."

Pros: "The crew was great. They let me go back to see if I could find my laptop that JFK TSA did not return."

Pros: "The cabin crew came through to collect waste from the passengers and made an effort to separate recyclables from trash. Air travel generates too much waste so it's nice to see JetBlue making an effort to reduce waste."

Pros: "Just disappointed in delay of about 1:15"
Cons: "Delay"

Cons: "I was not on it"

Cons: "Plane was delayed 90 minutes for takeoff as it came in late."

Cons: "Delayed 2 hours for lack of pilots."

Pros: "I love everything about Jet Blue"

Pros: "Night masked"
Cons: "Flight attendant was rude as hell , she looked like she didn’t know what she was doing"

Pros: "Jet blue is great."
Cons: "Delays are not. We were on the receiving end of bad weather up and down the east coast which delayed our late flight many hours"

Pros: "Leg room!"
Cons: "Nothing"

Pros: "We love flying Jet Blue, especially because of the leg room. Everyone is so attentive. The snacks are great, too."
Cons: "Unfortunately one of the monitors wasn’t working."

Cons: "No working internet or video"

Pros: "We started late and the flight was unbelievably bumpy and no updates from the pilot - it’s nerveracking!! It also took us an additional hour to get to Denver!"

Cons: "Overhead light and recliner weren’t working"

Pros: "We made it to our destination in one piece so that's good I guess"
Cons: "Delayed over 3hrs. Didn't get to sit with my wife. They switched movies 30min into the movie that I was enjoying. Attendants seemed annoyed at life in general."

Pros: "Pleasant. On time. Friendly. Decent value for money."

Pros: "The TV was nice"
Cons: "Some of the most uncomfortable seats both to and from Denver that I have ever sat in. Felt like sitting on a stone park bench. My back still aches 2 days later. It was a redeye, so I didn't much interact with the crew, but they seemed efficient and professional. They did not wake up during drink service, which was appreciated. Those planes suck!"

Pros: "Amazing fast easy flight with excellent staff on board!"

Pros: "They canceled the fly and left me in NY 3 days did not gave any reson for wy they cancel the flight and the didn’t help with hotel or noting cal"

Pros: "On time flights with punctual boarding and early arrival Polite flight attendants Pilots pointed out areas of interest during the flight Comfortable take off and landing Unlimited snacks and beverages, even on shorter flights Free entertainment, even on shorter flights"
Cons: "nothing"

Pros: "Okay food and drinks"
Cons: "There were smelly people on a hot plane making more smells here and there for over 3 hours. I couldn’t breathe. My entertainment console did not work to full capacity"

Pros: "Service was phenomenal"

Pros: "Easy and clear instructions on boarding."

Pros: "Free internet, great landing."

Pros: "Everything"
Cons: "Nothing"

Pros: "We arrived earlier than expected and easy boarding."

Pros: "JetBlue did a good job, as usual."
Cons: "There was a screaming Infant in the seat next to me that continued to scream for the first hour and a half. I requested earplugs, and wore them under my 34 dB noise isolating earmuffs (which were made for use at a gun range). The screaming was still loud enough to give me the worst headache that I've had in 4 years. Once this baby stopped, the baby in the row behind me began to scream and the one across the isle from him/her joined in. I would happily rebook with JetBlue if there was an option to not be seated within 5 rows of a toddler."

Pros: "Great trip, but the mini tv wasn't working which was a bummer."

Pros: "Boarding from back of plane"
Cons: "Didn't get snack I asked for and what I got (popcorn chips) I didn't like. Also chair wouldn't recline"

Pros: "Service"

Cons: "Online check in refused to let me pick a seat even though the plane was not full. It then did not generate, or allow me to print at the airport, a boarding pass. When my connection arrived at 7pm I stood in line at the gate while the airline employee working completely ignored us for a solid 15 minutes waiting to get my boarding pass. the flight then said it was delayed with a departure time of 9:05 and we did not even start boarding until after 9pm."

Cons: "When the flight is cancelled you need to find a solution for those passengers who travelled that day by bus or car just to catch the flight!!! At least a hostel to sleep over night or give them back the money or let them travel with another company...not to wait 12 hours on the airport!!! Thats not professional at all!"

Pros: "Nice flight attendants..."
Cons: "Very cold in cabin-"

Pros: "Jet Blue treats its customers like they are real people and not just stock to be moved. There is adequate legroom. Their personnel are friendly and competent. This alone puts them above most airlines."

Cons: "TV didn't work"

Pros: "After a long day of flights and airports it was a nice way to end the trip. Comfortable seats and no frills with class"

Pros: "Friendly crew with nice food"

Pros: "Good, friendly, competent service all around."

Pros: "Seat was ok"
Cons: "Flight delayed, airport waiting room congested, I had to pay 200 extra to find seats together, flight location on monitor not working"

Pros: "My favorite airline to travel from Denver to Puerto Rico, round trip, and in Atlanta I will make the stopover, I also feel so safer to travel with my cat ... they are the best airline in everything"
Cons: "Let people who travel with pets earn extra points for taking them with Delta"

Pros: "Delta is doing a great job keeping everything calm and clean during this pandemic!"

Cons: "Nothing all excellent"

Cons: "It was great! Nice job Delta !"

Pros: "Great crew."
Cons: "As always, the seats in basic economy are as small as possible without actually being standing room only. I'm 5'7" and my knees are only about an inch from the seat back in front of me."

Pros: "Christina brown was amazing at gate"

Pros: "The staff at Delta are always friendly and helpful and they were able to squeeze me onto a very full flight."

Cons: "Great flight"

Cons: "crj900 from BUF-MSP is a wreck. worn out, uncomfortable seats, cold air coming from floor toes were numb for about 20m after flight. Flight delayed, missed connecting flight, lost comfort+ upgrade I paid for. No excuse for pitch in main cabin on 737-900 ER."

Pros: "Nothing remarkable"
Cons: "Delta was ordinary"

Pros: "Yes"

Pros: "The crew and entertainment options are great. Relatively comfortable seats by today's standards."
Cons: "Literally any of our flights could have been on time. None were."

Pros: "The crew was great and the free entertainment was great"
Cons: "Bring back pillows and blankets especially on red eyes out of Anchorage"

Pros: "Love the fact that the head rests move to support your head better."

Pros: "The seat was great, I wish all seats on the plane were that comfortable"
Cons: "Nothing, everyone was great"

Cons: "No meal option and my video screen volume did not work"

Pros: "Boarding was easy."
Cons: "I am 6' 1" tall and weigh 220, so not out of the ordinary and I felt like I was stuffed into a sardine can."

Cons: "Better screens for in-flight movies. More legroom or upgrade options."

Pros: "Entertainment"
Cons: "Boarding at JFK.Always messy"

Pros: "Boarding was quick"
Cons: "No entertainment, plane was small"

Pros: "Delta cramps people into these planes and forces you to put your bags under a seat because they stuff at the overhead spaces. They nickel and dime you for every single thing. There was even one person I saw who had to pay for his headphones to listen to the onboard entertainment. I think Delta should quit being so cheap with the profits they make and give it back to your flying customers. It borders on gouging."
Cons: "Delta cramps people into these planes and forces you to put your bags under a seat because they stuff at the overhead spaces. They nickel and dime you for every single thing. There was even one person I saw who had to pay for his headphones to listen to the onboard entertainment. I think Delta should quit being so cheap with the profits they make and give it back to your flying customers. It borders on gouging."

Pros: "Entertainment choices were excellent, many new movies available, so I was able to see movies is been meaning to watch. There were drinks available."
Cons: "The air vents barely trickle out any air anymore. No relief to be had. Airline crews say hi and goodbye but that doesn't make them friendly."

Pros: "We boarded close to on time, no hassles. Allowed my husband and me (retired military) to board early, thank you."
Cons: "LAX security is awful. We never left the airport (arrived LAX from Sydney AU) yet were forced thru security again. Had to remove shoes, was scanned and "frisked" by TSA to get to Denver. To go to Australia, Denver TSA waived the removal of shoes, skipped the scan for the metal detector and no one touched me, ditto for LAX on the trip to Sydney. Where's the uniformity or standards for TSA?? Why did I have to be subjected to this garbage on the way home?? This is why I despise flying. It makes no sense to me. This ruined what was a great vacation."

Pros: "Not much. Boarding by "zone" works ok, but is no quicker than most other boarding methods."
Cons: "Boeing 767-400ER seats had no leg room for 6'+ traveller like me. The entertainment system was so old that there were no 115v outlets or USB ports. On a 7-hour flight, that is a significant problem for travellers today with multiple electronic devices. Finally, we were not told in advance that we had to go through security twice and through US Customs BEFORE leaving Dublin. So, the 6-hour layover at JFK was a complete waste of our time as we did not have to go through Customs there."

Pros: "Free drinks and snacks - great entertainment system (please read this Frontier)!"
Cons: "Boarding process was agonizingly slow and ineffective"

Pros: "The Delta service desk was great! We wanted to get an earlier flight home and the Delta Rep got us on standby quickly and with a smile."
Cons: "Some chaos getting on the flight. The area they have set up for the different sections to wait before getting called weren't marked very well so everyone was bunched up and confused. Once they started calling the sections it was fine. Not sure why they even had the marked areas."

Pros: "My upgrade and breakfast were fabulous!"

Pros: "Staff very courteous and professional"
Cons: "None"

Pros: "The staff really helped me out getting on standby so that I didn't have to wait for a 9 hour layover. Overall great experience and great staff."

Pros: "Everything was perfect !! Staff friendly"

Pros: "Great in every way"

Pros: "It got me home, eventually."
Cons: "Poor communication, a 6 hour delay followed by a 7 hour layover (during which we had to sleep on an airport floor because Delta couldn't offer us any hotel vouchers). Gate agents disappeared after 7pm becuase they were due to be done with their shifts when our flight was originally supposed to leave at 6 pm. It felt like we were trapped in the movie The Terminal. Oh! And our bag was misrouted, because that was just how things went those 2 days. All in all a 6 hour trip turned into 18 hours. I could have driven home in that amount of time!"

Cons: "My daughter was stuck in SLC for 5 hours because there 1 cancelled flight and 1 delayed flight. It was very upsetting not knowing when she going to arrive in Denver."

Pros: "First leg from San Diego was excellent."
Cons: "Arriving in SLC discovered out flight to Denver was CANCELLED! Had to reschedule to the next day. Not fun!"

Pros: "really helpful and friendly service and nice seats."

Pros: "I asked for a change of seat at the gate and was given it. It really made a difference to be at the window."

Pros: "to their Diamond Medallion customers"

Pros: "The boarding process in Atlanta was as smooth as could be expected given that it was a full flight. I appreciated the gate announcer's suggestions to everyone about how to ease the overhead baggage crunch."
Cons: "Economy is very tight quarters."

Pros: "Crew was all very nice"
Cons: "Flying is always uncomfortable"

Pros: "When deplaning in Denver, I was impressed that the captain was the staff who got behind my wheelchair and offered to push me up the walkway :)... New aircraft, kind staff, shorty flight!"
Cons: "Nothing disappointed, butt i didn't have any good besides pretzels."

Cons: "Excellent service excellent pilot"

Pros: "The airline did not disappoint and the customer service were very professional"
Cons: "Make sure the new signs are posted in all airports for boarding. That will help control people at the entrance"

Pros: "Flights were both on time and boarded quickly. Crew was wonderful!"

Pros: "Entertainment"
Cons: "This is my third flight this year with Delta and every time we wait for the "crew" to get off from another flight. And as soon as they get there we can board. It's getting very annoying. Fix it."

Cons: "long wait and delayed flight"

Pros: "Return trip was 30 min ahead of schedule"
Cons: "We had a 2 hour delay getting to NYC"

Pros: "WiFi, good flight attendants"
Cons: "Would like to see Direct TV along with Delta Suite so can watch live TV"

Pros: "One male attendant from the first class cabin - super sweet and attentive to our needs even tho we're not seating in the premium cabin"
Cons: "Junior attendants in economy comfort seat - so lazy and whiny!"

Pros: "Very professional and caring."

Pros: "plane had individual movies for free with each seat!"

Pros: "Crew was great."
Cons: "turbulence"

Pros: "1st class flight attendant sat through the entire flight (except for offering drinks and food early in flight). There were passengers NOT wearing masks through the flight but she wouldn't know that since she never left her seat"
Cons: "just about everyting"

Pros: "Entertainment on seats"
Cons: "I sat in seat 12A- the window was so hot it was burning my arm and I was extremely hot. Not sure if it’s from the engine heat or sun but it’s probably a mechanical issue that the 737 should address. Horribly uncomfortable trip."

Cons: "IFE was not streaming movies, WiFi on but not loading"

Cons: "Spacing people out until this covid is over"

Pros: "Everything was great"
Cons: "Nothing"

Pros: "Appreciated the pilot keeping us informed re: turbulence and avoiding it"

Cons: "Sat waiting for gate for 30 min"

Pros: "Horrible staff at LAX boarding gate. Been treated horribly by incompetent and rude AA staff."
Cons: "Hire only friendly people for this type of job. Hire people knows basic math. Train their well on how to communicate with people."

Cons: "Flight got delayed. We paid for assigned seating for our almost 85 yo mom. And the change in flight no one asked for to get seated in the front of plane. Instead she was seated all the way in the back. It was physically exhausting for her."

Pros: "The notifications regarding my connection and baggage claim."
Cons: "Nothing."

Pros: "Crew was great"
Cons: "Absolutely no accommodation for seat assignments and the lady at the gate was so rude for even just asking to sit next to my fiancé even though there were tons of single people on the flight."

Pros: "The flight itself was fine."
Cons: "The gate change was not announced on my phone app (changed from E7 to D49). I hate leaving out of Terminal E at MIA. There is no point to having TSA Pre-Check if you have to stand in line with people who don't have it. I have to remove my liquids and laptop. It's such a shabby, run-down terminal."

Pros: "No major screw-ups this time!"
Cons: "It's AA, let's not try too hard here."

Pros: "Crew was nice"
Cons: "Not enough leg room. They did a gate change and I almost missed the flight because nothing was announced and when I looked at my phone app it had the previous gate."

Pros: "Nice staff"

Pros: "Pleasent"

Pros: "Pretty standard flight"
Cons: "Inconvenient timing and overcrowded with obnoxious children sitting on laps. No attempts made to change their behavior by crew or parents."

Pros: "Getting off the plane"
Cons: "3 hours late flight- customer care very insensitive and unhelpful"

Pros: "The plane looks like new. Great seats, phone and tablet holders at the seat back, USB outlet and a smooth flight."
Cons: "The WiFi did not work and so no entertainment for a flight of almost 4 hours."

Cons: "3+ hour flight with no TV/ entertainment"

Pros: "Not using kayak."
Cons: "Worst flights in history. It took three days to get from Italy to the US. Do not use kayak!"

Pros: "Our plane was given to another group going to Orlando so we were delayed almost 4 hours. This after a 5 hour layover."
Cons: "Gate lady was funny about being pissed about the delay."

Cons: "Didn't like the two hour delay, especially when I was notified only a half hour before boarding! This seems to be a normal thing for American Airlines."

Pros: "They got us there quickly."

Pros: "Ahead of schedule"

Pros: "Plane was surprisingly spacious in coach and very clean."
Cons: "They seemed to have entire plane boarding in group 6. Hardly anyone boarded in groups 1-5, and when they called 6 the entire gate area lined up."

Pros: "Movie and tv selection was good. Boarding was a cinch, we took off exactly on time, seats were comfortable, too."
Cons: "Airline misplaced my boyfriend's checked back with our duty free Portuguese wine in it. It still hasn't been delivered to him the next day. They had three hours to get the bag on the flight."

Pros: "Nothing in particular"
Cons: "Outlet did not work"

Pros: "Same"
Cons: "Same"

Cons: "Everything. Had to sleep overnight in airport and was late coming home."

Pros: "Wonderful, again. Will fly American any chance I get!"

Cons: "No tvs!!"

Cons: "the new seats are awful"

Pros: "It’s been a while since I’ve flown American, but the aircraft was updated with a solid multimedia system, great moving map, and a standard power plug and USB port at every seat. That’s more than I expected, and was quite happy. Service was solid—no complaints."
Cons: "Good & bad — flight arrived late, but the honestly, the pilots did their level best to make up the time and managed to arrive w/in 4 minutes of the scheduled arrival. Well done."

Pros: "Tv and power outlets"
Cons: "This one attendant didn't get her name but was very cold to me"

Cons: "Long delay"

Pros: "Crew"
Cons: "Small plane"

Pros: "Good serice,"
Cons: "Good service to switch flight pattern from greenville to new bern but still a delay that cause a 2 flight connection. Lots of on-line issues with check-in, overall a stressful day, hopefully it will all work out!"

Pros: "Eveything ran smoothly"

Pros: "More improved than the last trip I took with AA to Denver. Efficient boarding."

Pros: "Everything"

Pros: "No excuse on a night flight does the temperature to be 80 plus degrees on the plane."
Cons: "The plastic seats and extreme temperature was brutal. They shut the AC off of down somehow."

Cons: "5 hr delay"

Pros: "Entertainment."
Cons: "We sat on the runway for 3.5 hours while the crew cleaned up a fuel spill and we waited for a different co-pilot."

Pros: "Flight not entirely sold out. So they let my 14 month grandson have an empty seat between my daughter and I. That was a great gift since he doesn't sleep and is jumping and crawling all over the place. And I'm sure the other passengers were breathing sighs of relief!! Also super smooth landing and nice flight attendants."
Cons: "Flying with an active 14 month old toddler boy and of his "stuff" is nothing less than anxiety provoking. Not much the airline can do.."

Pros: "Crew"
Cons: "Had to board three times, two different planes. I understand mechanical problems, but 3 hours later, and on another plane, the captain starts making stuff up, saying that the only reason we hadn't moved in the last hour was because people were using the bathroom, then something about having to deplane because the plane couldn't back up with us on it because of some sensor? And then, surprise ! All of the sudden they noticed there was an issue with his and some of the crews' hours and we had to wait till they could locate more crew. But they gave us each a 1/3 glass of water and later a $12 food voucher which didn't even cover a meal and beverage. Whoop-de-do. 7 hours later we finally boarded for the third and last time. The crew on the other hand stayed professional and friendly."

Pros: "American Airlines is my favorite Airlines to fly. There is a little more leg room and the seats are a little wider. The staff is very professional and courteous."

Pros: "Very friendly staff"

Pros: "The plane was new on the interior and comfortable."

Pros: "Yes"

Pros: "Fast and friendly"

Pros: "Good job"

Pros: "How easy everything was"
Cons: "The delay"

Pros: "Nothing"
Cons: "Arriving on time to make my connection!!!!!!"

Pros: "Very helpful assistance staff, food and drinks delicious, excellent service onboard"
Cons: "At Denver assistance hadn’t been arranged"

Cons: "Only bathroom on the plane was closed due to issues. Plane was cold and cramped."

Pros: "Love United’s service. Nothing to complain about."

Cons: "Delayed boarding, no room in overhead bins even after being charged extra for carryon and had to stuff it at my feet, even at row 15, after being charged more for that too."

Cons: "It sucked in many ways. But that wasn't united's fault. The weather was threatening lightning in Denver and of course because of that the world stops turning."

Cons: "There are hard to reach outlets and no ports to charge a device without a box. Also, no monitors."

Pros: "Nothing"
Cons: "When I spoke to the United person last week to confirm baggage and carry on requirements. He said I could take a carry on when I turned up to the gates I was charged another fee for my carry on bag. What is baffling is that when I arrived at Denver people were getting complementary check in baggage. I’m so dissatisfied with the booking and the amount it has now cost me ruining any savings I’d had for sanfrancisco"

Pros: "Nothing"
Cons: "The boarding process was chaotic and the plane attempted to land once, got about 100 feet from the ground and had to pull up. So we basically landed twice."

Pros: "I liked the ticket price."
Cons: "The seat was very narrow with absolutely minimal leg space, and a carry-on bag was not included in the fare."

Cons: "Delays in flights were a disappointment"

Cons: "They made me put my carry on under the plane."

Cons: "Missed connection due to mechanical"

Cons: "Crowded planes."

Pros: "Everything was very nice."

Pros: "Everything was on time and all the staff were professional and friendly"

Pros: "The variety of movies"
Cons: "No daily wifi"

Pros: "One if the bathrooms was closed and a second one had no running water."

Pros: "Repairs caused a long delay, they kept us informed but it was a hurry up and wait forever"

Pros: "Nothing unusual every was smooth"
Cons: "Not applicable"

Pros: "Nothing"
Cons: "Everything"

Pros: "Staff was nice!"
Cons: "I didn't like the luggage restrictions associated with our tickets."

Pros: "Curtial personnel"
Cons: "Late departures both ways."

Pros: "Nothing"
Cons: "Nothing"

Pros: "Got there on time."
Cons: "Private screening does not work well. Very little kneeroom. No room in seat back pockets to put anything."

Pros: "Suitcase arrived at the carrousel on time , much better than Houston."

Cons: "Delayed and got downgraded without refund of difference"

Pros: "United payed for the room and 20 bucks for food."
Cons: "Late. Missed the connection to Gillette and had to stay overnight."

Pros: "Sucks"

Pros: "Had a stroller, two bags, and a car seat and the check in staff helped us tag everything and loaded it for us. It was nice to see the Billings staff go above and beyond in my families time of need."

Cons: "Unreliable wifi."

Pros: "Getting off the plane"
Cons: "Bathrooms weren't working, huge lines in aisle, lackluster service. Overhead bins were full by Group 3. late takeoff."

Cons: "Didn't receive my carry-on when arrived in ELP. Finally got it the next day."

Pros: "Everything went smoothly"

Pros: "Quick boarding"

Pros: "It was fine!!"

Pros: "New plane, wifi, arrived 27 mins early"

Pros: "Cancelled."

Pros: "Perfect, but I did upgrade to United's business plus."

Pros: "I recoment it..."
Cons: "No complementary food!!!"

Pros: "We had a good trip. Thank You All"

Cons: "Lost all my luggage"

Cons: "Alcohol was to expensive"

Pros: "Although it was a new airliner to United, it had noticeable more legroom than the Airbus aircraft that other airlines use. Luggage room for your carryon was ok, though not near as convenient as the Boeing's."

Pros: "Relatively easy to change flights due to weather delays"
Cons: "United personnel did not seem too chipper."

Cons: "Delays in take off"

Pros: "I made it to my destination"
Cons: "It’s Frontier so it’s not supposed to be amazing. Not having to pay for a drink of water would have been nice though.."

Cons: "A soft drink that doesn’t cost money!!"

Pros: "Nothing"
Cons: "At least let the people with no baggage go 1st"

Pros: "Everything"
Cons: "Nothing"

Pros: "Nothing"
Cons: "Window seat and a beverage"

Pros: "Is good"
Cons: "Yes"

Pros: "Nothing"
Cons: "Everything"

Cons: "They need to stop having so many delays"

Pros: "Easy boarding"
Cons: "FREEEEEEEEZING on the plane so some of us asked for them to turn up the temp but they never did. So cold I pulled out all my clothes and wore them."

Cons: "Bathroom was beyond tiny"

Cons: "So grateful for all of the help we received!! Thank you!"

Cons: "Ridiculous surcharges, no water, no coffee"

Cons: "Check in"

Cons: "When many people were sleeping, the stewardess loudly (VERY loudly) would ask the other patrons if they wanted something to eat. There is no WiFi. You can’t buy food and they don’t offer cookies or pretzels!"

Pros: "Nothing"
Cons: "Offer free beverages, and snacks. Enlarge trays. Mandatory customer care classes for your staff."

Cons: "Ground staff not able to help with cancellations- no notification about the delay - please provide better training"

Cons: "Another airline...could of flown another airline with no baggage charge had movie WiFi...better food free soda"

Cons: "It’s was delayed 3 hours in buffalo ."

Pros: "Couldn't get buttons to work on previous page. flight was fine"

Pros: "Frontier was smooth and efficient, didn’t have any issues."

Cons: "Negative leg room, Hugh bag fees that were not stated in the original purchase"

Pros: "Nothing"
Cons: "Delays, gate changes, lack of notification, last minute changes."

Cons: "Frontier is an airlines that doesn't care about its customer. Period!"

Cons: "one hour late"

Cons: "Late again"

Cons: "I had to pay $50 for my bag"

Pros: "I did not like anything about this trip. The check in process was a pain. The boarding was chaos... (Of course, same 2 careless ladies were in charge."
Cons: "I did not like anything about this trip. The check in process was a pain. The boarding was chaos... (Of course, same 2 careless ladies were in charge)."

Pros: "Nothing. Absolutely nothing. I mean I got where I was going and didn’t die, but that’s about the extent of the positive things I have to say."
Cons: "Very uncomfortable seats, no beverage service. Up charge for literally everything, carry on’s were charged, as much as checking bags. I’ll be avoiding frontier like the plague in the future."

Pros: "Went exactly as described"

Pros: "Plane interior was bright and new."
Cons: "Baggage retrieval. Chairs don't recline."

Pros: "The staff was a well oiled machine! Very funny & accommodating. They were all very friendly & helpful to all of the passengers. Everything was clean & orderly."

Pros: "Early, friendly staff"
Cons: "No WiFi"

Pros: "Nothing"
Cons: "Everything"

Cons: "Everything, poos policies that do not satisfy the customer."

Cons: "Plane was too hot"

Pros: "Personnel were great"
Cons: "Luggage took over an hour"

Cons: "50 minutes late with no warning"

Cons: "40 minutes and still no bags"

Cons: "The same 2 screaming babies entire flights. Attendants allowed with no assistance."

Cons: "There were several delays."

Cons: "I hjave never flown on an airline thaty charges you for drinks and snacks"

Cons: "Delayed again longer then they said it would be as well, also their reason was "there's no good reason" awful"

Cons: "5 hr delay with no explanation."

Pros: "Everything went smoothly"
Cons: "Paying extra for what would have been a carry on for UA or AA"

Cons: "Frontier is an awful scam of an airline."

Cons: "8 dollars for a can of soda? really?"

Pros: "Loved the pilots humor!!"

Pros: "Wish they had free snacks."

Pros: "Sort of cheap"
Cons: "Cheap at every level. Makes you feel unsafe. Are they cutting on cheap pilots too?"

Cons: "I did not know you all do not provide complimentary beverages and snacks. I did not know I had to purchase a seat to sit in for check in and only one carry-on was allowed."

Read more about JetBlue
COVID-19 information

Safety measures for airlines flying from Buffalo to Denver

Airlines flying from Buffalo to Denver 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 Buffalo to Denver

Mandatory masks

Masks required on board, masks provided on flights from Buffalo to Denver

Social distancing seating

Middle seats unavailable to book on flights from Buffalo to Denver

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from Buffalo to Denver

Book cheap flights from Buffalo to Denver

Recent round-trip flight deals

9/9
Thu
nonstop
Frontier
3h 41m
BUF - DEN
9/14
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Frontier
3h 13m
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Multiple Airlines
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Multiple Airlines
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Frontier
3h 41m
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Frontier
3h 13m
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3h 41m
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5h 21m
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Frontier
3h 41m
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3h 13m
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Frontier
3h 41m
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3h 13m
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3h 38m
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6/10
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3h 16m
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Recent one-way flight & bus deals

5/23
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nonstop
Frontier
3h 38m
BUF - DEN
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Frontier
13h 41m
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3h 41m
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36h 55m
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3h 38m
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3h 41m
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36h 20m
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4h 58m
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44h 45m
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