Find cheap flights from San Antonio to Denver

SAT - DEN

Find cheap flights from San Antonio to Denver

Round-trip
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San Antonio (SAT)
Denver Intl
Fri 2/26
Fri 3/5
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Good to know

Low season

September Best time to beat the crowds with an average 43% drop in price.

High season

December Most popular time to fly with an average 35% increase in price.

Average price round-trip

$169 (avg. price over the last 2 weeks)

Good deal round-trip

$87 or less

Good deal one-way

$53 or less

When to book flights from San Antonio 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 $53 or less one-way and $87 or less round-trip.
  • The cheapest flight from San Antonio to Denver was found 76 days before departure, on average.
  • Book at least 3 weeks before departure in order to get a below-average price.
  • High season is considered to be November, December and January. The cheapest month to fly is September.
  • Morning departure is around 7% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

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Top 4 airlines serving San Antonio to Denver Intl

Scores according to KAYAK customer reviews

7.9
Delta
Overall score based on 29,019 reviews
8.1
Boarding
7.8
Comfort
8.5
Crew
7.8
Entertainment
7.5
Food
Airline reviews

Pros: "The accommodation to the military service members!"
Cons: "Air fresheners should be used on the airplane."

Pros: "Nothing. I’ll never do business with Delta again. Not even to make use of the $80.00 voucher credit they extended. Delta San Antonio manager Delphine is an awful representative of customer service, and a horrible person!"
Cons: "I should have never flown 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: "Very courteous"

Pros: "Christina brown was amazing at gate"

Cons: "The main economy seats were far too narrow."

Pros: "Fast!"

Cons: "It was a Great flight. I always enjoy flying Delta"

Cons: "My flight was delayed almost 3 hours. Not good. Once in the air it was fine."

Pros: "Everything ok. I was hoping to buy food but glad to see almonds as one of the free snacks. Delta seems to be upping its game a bit lately."
Cons: "No US carrier seems able to master smooth boarding without standing waits."

Cons: "Mechanical difficulty. Late Then missed connecting flight. 4 hours in a hotel. Then back to the airport the next day. Why can’t airline keep planes in good condition?"

Cons: "Flight was delayed and completely packed so our family could not get seats together"

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: "The crew was great and super nice!"
Cons: "Screens with games, more leg room, and not having kids behind us messing with tray tables the whole flight."

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."

Pros: "The boarding was very quick"

Pros: "Good entertainment selection and great crew"
Cons: "Seats are more uncomfortable relative to other airlines"

Pros: "The crew on the airplane was great. We had 2.5 hours turbulences but the crew started to give out drinks as soon they got the ok from the pilot"
Cons: "We went in LGA to the Baggage drop off and the employee there was super rude. On the flight to New York with Delta we had to check our carry ons at the gate because it wasn't enough room for bags in the airplane.so we asked when we checked our one suitcase if we can/should check our carry ons to avoid having to do it at the gate. The delta employee told me sure no problem. He checks in my one suitcase I purchased gives me the tracking paper and says ok have a good flight. I asked him so what is with our carry ons and he told us that that would cost 25$ and we can't check those in at the drop off?!?We ended up taking the carry ons with to the gate and then off course there wasn't enough room on the airplane that we had to check it in. And surprise it was free?? We had never issues with Lufthansa, icelandair etc. with checking our bags at drop off to not needing to carry it around and than still end up to check it at the airplane. Every airline has been more than happy that we volunteer to check our bags that they don't have the trouble at the gate."

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: "JFK to Denver the flight Attendants were once again great. Lots of entertainment choices again. The usual rough air coming into DIA."
Cons: "From JFK to Denver the seats were to close for leg room by an inch or two. The temperature was hot most of the flight."

Pros: "The seats had plenty of leg room and the crew was was very kind."
Cons: "My seat was uncomfortable and I was seated in the only row of the aircraft without entertainment for a four hour flight. Then on top of that the passenger next to me removed his shoes and you could smell his feet from a mile away but the flight attendants never requested for him to replace his shoes."

Pros: "Everyone who has a kid knows how challenging certain things can be in a flight and for me the combination of a night flight interrupting my baby’sschedule + a full flight it equalized disaster. My daughter could not get comfortable for the love of life and I just felt horrible and frustrated and what sucked most was the 9 year old and her obese father siting in our row that kept giving us weird looks."
Cons: "There’s NO room in planes between seats. It’s 2018 and new planes must be done ASAP to accommodate people better. I’m 5’1” and 110 lbs but adding my 25lb daughter siting in my lap before she turns 2 is absurd to expect that it will be comfortable whatsoever for us or the people breathing next to us. Please DELTA, lead by example and make sure your planes are designed with more room in between and around the seats. In my opinion, every seat should be first class."

Pros: "Not much."
Cons: "The hand-me-down Southwest boarding group gates. The automated ticket readers. The whole de-personalization."

Pros: "Loved the roomy seats and the upgrade wasn't terribly expensive"
Cons: "Nothing"

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: "In a pinch they were able t"

Pros: "Great in every way"

Pros: "All wonderful."

Cons: "Check in lines were crazy long"

Pros: "Flight attendants were very helpful and gave us free headphones and adjusted our seats so we could sit together as a family. There were no delays to ATL just 48 hours after the power outage the regular scheduled flight schedule had resumed. Great Flight, Great Crew!"
Cons: "Everything was good."

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

Pros: "free texting and entertainment!"
Cons: "our flight was delayed half an hour."

Pros: "Pilots skill - it was raining hard when we landed"

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: "The plane, crew was clean, newer and had TV's in the backrests. Remember to bring headphones! Seats are tight, but the crew was friendly and may the flight experience positive."

Pros: "Friendliness of staff. Second flight was a newer plane - sweet!"
Cons: "For a long flight perhaps a little more in the snack department."

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."

Pros: "Quick boarding, clean plane, comfortable seats, the flight departed and arrived on time."
Cons: "The landing was a bit harsh, we couldn't connect to the airplane WiFi, so we did not enjoyed the entertainment."

Pros: "Not much to like here. The new crew was pleasant"
Cons: "Old crew was surly. Plane had much problems and finally replaced. Left 5 hrs late. Delta claims it doesn't have to compensate for a late flight - just a cancelled one so guess which this was The baggage fees are obscene and the gouging of the customer is immoral. No wonder people hate the airlines."

Cons: "Excellent service excellent pilot"

Pros: "Overall, the flight was very smooth and I thought the crew did a great job."
Cons: "I know this is a federal regulation, but I have to mention it as it is part of the boarding process. For the life of me, I can't understand why it is necessary to go through security again after re-entering the country. Understandable that I have to go through customs, but going through security again is ridiculous."

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."

Pros: "Check in, gate, and plane staff all friendly and efficient. Plane clean and flight on time. Overhead space with full plane was no problem. Service inflight was quick and cheerful."
Cons: "Drop off in San Antonio always a mess. Traffic delays driving up to drop off. Security check 20 minute with no pre approval. Seats crowded. Snack choices predictable."

Pros: "The staff of the flight were very friendly and attentive. They were great!"

Pros: "They forgot the CC reader so drinks were free. The free GoGo media is cool."
Cons: "Flight was cancelled and rescheduled 3 times. Delayed. Tiny plane = uncomfortable and turbulent."

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

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

Pros: "Transportation of my pet with no issues"
Cons: "Nothing"

Cons: "There are too many announcements on the screen before you can start watching entertainment. It takes about 15 minutes."

Cons: "Not a thing. Good airline, all the way around"

Pros: "I’m alive"
Cons: "An hour late. 3 gate changes. Missed connection in Phoenix. Typical AA."

Pros: "Nothing"
Cons: "You could have been on time. You could be accountable. You ruined my wife’s 40th birthday by failing to fulfill you’re end of the deal."

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

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

Pros: "Seats were comfortable"
Cons: "Better route planning and time management"

Pros: "Flying is not fun… The seats are too close together making it very difficult to stand up to enter or exit the aisle!"

Pros: "Michael DJ was awesome! Made us laugh during the safety demonstration which was much appreciated on a long travel time home!"
Cons: "The descent down to the airport was rough. I felt it was done too quickly, caused a lot of pressure on my head and was very painful"

Cons: "Sat waiting for gate for 30 min"

Pros: "Awful"
Cons: "Hot crowded late horrible"

Cons: "Only pretzels, came eat refined flour, nuts or something else would be great."

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: "Air conditioning"

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

Pros: "I really appreciate the automatic notifications letting me know what gate my connection is at and what baggage claim I’m in. Very nice."
Cons: "Nothing that I took note of."

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

Pros: "Awesome all around. On time!!"

Pros: "Comfortable, friendly and ON-TIME!!!"

Pros: "Both flights on time. Boarding slow but organized"

Pros: "Overhead bins were newly done with plenty of space since carryon can be placed vertical on side. Decide holder built into the seat was very nice."

Pros: "Nice staff"

Pros: "On time"
Cons: "Nothing"

Pros: "Pleasent"

Pros: "Spacious"
Cons: "Ran out of food that I like"

Cons: "I hate Americans boarding process"

Pros: "Boarding was easy and pleasant"

Pros: "They got us there quickly."

Pros: "Seats were too tight and too close together."

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

Cons: "N/A"

Pros: "The first leg had awesome pasta.Then, on the 2nd leg, Philly to Denver, they had a "pay for meal" option for turkey with Chutney sandwich - again, delicious. I should add that the service was very good as well."

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

Pros: "Every thing. I am not rating it as excellent only for the 'Maxim' : "There is always scope for Improvement""
Cons: "Nil. No complaints what so ever."

Pros: "Staff was great!"
Cons: "Seats were really uncomfortable up and reclined. Overhead baggage was full by the time I boarded and there was no enforcement of the carry-on baggage sizes... This needs to be addressed and contributed to our lack of comfort, noting this was the last leg of an 18 hour journey. My body still hurts today after a good nights sleep."

Cons: "No tvs!!"

Cons: "the new seats are awful"

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

Pros: "Everything"

Pros: "The seating was good."
Cons: "Even though the weather caused issues, i felt that we were treated poorly. I wound up having to sleep in an airport. Never had to do that before. There was no empathy for our situation whatsoever."

Pros: "I am going to miss the old MD80's when they are gone."

Cons: "The lack of leg space didn't know it was that bad."

Cons: "Uncomfortable seats Crying child"

Cons: "Unexplained delay in leaving but only arrived about 10 min later than scheduled. Took an hour from pulling into the gate for bags to arrive though which caused me to miss my shuttle. Never had to wait more than 15 min for any other airline at DIA."

Pros: "The departure time. This left enough time to get to the airport and go through security without rushing!"
Cons: "Sitting in the middle Paying for luggage ( I wish Southwest flew out of ORD)"

Cons: "When your on your honeymoon it sure would be nice to have a seat next to my husband like we requested."

Cons: "Seats too small and the gentleman next to me was a big guy so crowded over into my seat some."

Pros: "I was given an economy plus seat when I reserved my seat, after calling the airline. It was a nice surprise."
Cons: "I wasn't able to access the movies through the UA app on my phone. I never found the right link."

Pros: "Good flight, boarding, crew, and comfort."
Cons: "No food, no entertainment that I could access, no power for my devices (it didn’t work)."

Pros: "Smooth flight"
Cons: "Delays"

Pros: "Some of the attendants offered me one of the bigger seats since I'm a big guy."
Cons: "The main flight attendant wouldn't allow it since I didn't pay for it."

Pros: "I liked the flight was a fast one from San Antonio to Denver and that it wasn’t too crowded."
Cons: "I didn’t like all the excessive noise from the plane and kids."

Pros: "The flight was on time"
Cons: "This was a smaller plane (4 seats across). Knowing this, they didn't bring enough luggage carts, so they only brought some of the luggage to the baggage claim and didn't tell us this. 5-6 of us waited and waited and finally asked someone who told us that they had to go back to the plane to get the rest of the luggage. Those of us still waiting got to wait another half hour for our luggage. Talk all they want, United just can't seem to get it right. PS: those of us who had to wait were the ones who got to the San Antonio airport the earliest and thus our luggage was on the plane first."

Pros: "Flight was on time even with unexpected.repairs we still arrives at our destination on time. Crew members were polite and efficient."
Cons: "Economy seats are so close and uncomfortable."

Pros: "Left gate 15 minutes on first flight out. Trip went pretty smooth other than that."
Cons: "Check in counter"

Pros: "Everything its gteat"
Cons: "Nothing."

Pros: "Boarding and landing ahead of schedule"

Pros: "Everything went fine and they sorted out a spot for me to sit even though the flight was overbooked"

Cons: "The flight was 4 hours delayed"

Cons: "Hot hot hot"

Pros: "Nice staff and comfort."
Cons: "I didn't like that when I got on and off my flights. When I asked for help because I am deaf and mute no one would escort me to the planes cabin or the right gate. Had to ask 3 different gates which way do I go because I cant hear and I was upset because I thought I wouldn't make my flight. My wife made sure that they put on my information in the system that they would help me, but I guess it doesn't work like that. In future I will make different arrangement so that I can get the help I need."

Pros: "The communication via Kayak was great in notifying me there was a 25 minute delay."
Cons: "Not seating with my kids but they loved the sense of independence."

Cons: "The airplane was freezing, and I'm 23 years old and very used to flying."

Pros: "All went well. Pleasant attendants."

Pros: "It was inexpensive"

Pros: "How fast they recovered my lost bag"
Cons: "Small plane, had to check in one of my bags at the gate, took forever to retrieve my bag, thus I missed my connection"

Pros: "San Antonio flight to Denver delayed too long where could not make connection in Denver to Toronto. Had to make other flight arrangements."

Cons: "My TSA Precheck status would not print on the boarding pass. My number was in the system. I've used it multiple times flying UAL."

Pros: "Agents checking baggage were unbelievably slow. Good thing there wasn't a long line."

Pros: "Fast getting my seat assignment. The guy at the gate counter was nice and courteous."
Cons: "TSA line was ridiculously long. Only one checkpoint open for the entire terminal."

Pros: "The flight attendant gave our baby a banana, which was super sweet."
Cons: "The flight was delayed for an hour and they turned off the AC for 20 minutes of that, which got uncomfortable."

Pros: "Getting home"
Cons: "Delays delays delays"

Cons: "Three gate changes prior to departure"

Cons: "Seating on this aircraft is poor at best!"

Pros: "Quick and on time"
Cons: "Personnel"

Pros: "The staff was so nice and helpful with everything I needed!"
Cons: "As a first time flyer, I had nothing to complain about."

Pros: "Turn off the damn screen in front of me. Programs are insulting'tv"
Cons: "Tv screen"

Cons: "Three of the four flights were delayed. It seems that this is business as usual for United."

Pros: "On time!"
Cons: "No jetway, long walk to the next gate and then the same long walk back down to board the plane for the second leg of the trip."

Cons: "Way to expensive"

Cons: "It was an enjoyable trip, no complaints whatsoever."

Pros: ".The attendant was caring and efficient."
Cons: "The boarding process seems to be a cluster of misguided sheep. The aircraft is uncomfortable even for us thinner patrons."

Pros: "Boarding on time and easy Seats super comfy Tv was great"
Cons: "Staff not attentive or friendly Not many food options"

Cons: "Delays caused missed connections in not directions and terrible rerouting plus lost luggage"

Pros: "The time of inflight service"
Cons: "No inflight wifi"

Pros: "On time departure and early arrival, which enabled me to make tight connection and get to destination on schedule. Premium Econ seating was comfy. UA personnel told the truth and were competent, efficient and nice."

Pros: "Everything was great on time and friendly"

Pros: "Flight on time and crew was very nice. The ones for food and entertainment were because we didn't have any. But they were offered"
Cons: "Our seats were changed for some reason so we were not only split from our friends we were traveling with but we ended up in last row. Very noisy and very uncomfortable."

Pros: "Friendly staff"
Cons: "Tiny seats. Tiny aisle. Uncomfortable seats. Large person next to me so I had less of my own seat."

Pros: "It was a very smooth trip. No issues"

Cons: "Plane broke"

Cons: "Being crammed on the tiniest playing on earth with super rude flight attendants. And the lady next to me was so big I had a half a seat."

Pros: "Not only do I get the best price. The fact that you told me what carousel to get my bag from was new to me. I alway check kyak first but now I love u guys. I know my travel site and its kayak"

Pros: "Glad there was a late evening departure available after the Bowl Game. Convenient so we didn't have to spend the night."

Pros: "Thank you."

Cons: "United"

Cons: "30 more minutes....."

Cons: "The rep. at the baggage drop off was being unnecessarily unkind. Though she did not attend to us, it was obvious to all those in line she was upset. She gave her co-rep. attitude &created a very uncomfortable environment. We do not know either of their names. The negative rep was the AfricanAm lady."

Cons: "Soooo bad both flights were deleted."

Pros: "How fast we boarded"
Cons: "We had an hour delay due to maintenance issues, they kept us in the plane for an hour without ac. A lot of turbulence throughout the flight. Very shaky. One of the worst flights I’ve been in. :("

Pros: "Agent at the airport was courteous"
Cons: "Website I was referred to had no other flights available and no other option."

Pros: "Fast enough to board"
Cons: "A little bumpy"

Pros: "No delays. Easy boarding with app. Fast baggage claim."
Cons: "No complimentary food/beverage."

Cons: "Too expensive. They charged me $95.00 for my luggage even though one was my skis and the other one my boots. Every other airline I have traveled with waves the boot bag, but they refused to honor that policy"

Cons: "Long waiting after boarding."

Pros: "I didn't really have much interaction with the crew as I was sleeping the entire flight. Everything was going good as far as getting to San Antonio. It was quick."

Pros: "Nothing"
Cons: "My flight was delay and they told me I was going to have time to get my second plane to Orange County California, when got to my lay over my plane was still there but the tunnel gate was closed. The tunnel was still connected to the plain but nobody to assist me. The plane stood there for about 20 minutes and nobody helped. Then once the plane left went to customer service and encountered a unapologetic lady that gave me the option to go either to LAX to get there at 9:30 pmor San Diego at 10:00 pm but I was suppose to get to Orange County at 3 pm, when i had a 9 month pregnant wife at home who couldn't drive due to been due any moment. I ended up going to LAX and getting there past 10 pm was not able to find anyone to pick me up on a Saturday night so had to take an Uber to OC which cost me about $90+ and frontier did nothing for me, just gave me a voucher for $15 to eat while I waited for the LAX flight. As we all know food is expensive at airports what can I possible buy with $15 besides fast food. And no offense to fast food but I'm a 6'6" and 230 lbs I need to eat a little more than a Big Mac meal."

Pros: "Boarding was easy."
Cons: "Uncomfortable seats even for 2 hour flight, & who charges $2.99 for a can of coke?!?"

Cons: "In San Antonio not available early enough at the counter. Couldn't log into their computers to accept bags. Bag drop should always be available because of online check-in and baggage payment. All we needed to do was drop a bag. Should't have to stand in line at check-in when everything is done and all you have to do is drop a bag. No incentive to use online check-in and payment."

Pros: "Clean roomy planes. Professional helpful polite flight attendants. Smooth ride. Easy on and off. Comfortable seats. Ontime!"
Cons: "Only water offered complimentary. Charging for a carryon bag. charging for an early seat selection."

Pros: "Even though we didn't have seats together, we were able to get them together with the help of the flight attendant."

Pros: "There was no pressing weather, but delays simply from a lack of a crew. However, the crew was friendly and nice on board. But every time I fly frontier, we get delayed."

Pros: "Ticket price before hidden fees."
Cons: "Extra seat fee to get a seat when checking in. Flight was over 30 min late leaving and we sat in Denver 30 to get a gate to get off the plane."

Pros: "Frontier has no entertainment on this flight. Flight was delayed about an hour, assumption was that it was weather, but never clarified."

Pros: "Didn't know that frontier now charges for carryon bags and any drink on the plane (alcohol and non-alcoholic). Probably will not fly frontier again"

Pros: "Nothing. This was the worst experience I have ever had with an airline."
Cons: "The wait to check a bag was about an hour. Then, my flight was cancelled 30 minutes before takeoff due to "weather." None of the other airlines were delayed. I ended up booking another ticket with a different airline, because other passengers said they had been trying to get rebooked on frontier for the previous week."

Pros: "Nothing"
Cons: "Being charged 45$ for a carry on. Having delays. Uncomfortable seats. Aircraft was way too cold"

Pros: "They totally failed. Never again. Totally ripped me off. Almost didn't make my scheduled visit with my daughters I only see twice a year. I had to spontaneously book emergency flight with United, which was great by the way. But cause was such short notice cost me 900 dollars. Frontier did not refund my checked bag fee and left my bag in la-la land. I found it. Thank God. Then they, frontier, only refunded me 50%. Do t k of why. Will dispute. What a headache, inconvenience, rip off, and waist of valuable time. I learned. You get what you pay for people."

Cons: "You should inform the passengers atleast 3 hours before the departure about the flight delay and status. Not after they r waiting at the gate and the schedled departure time is passedand people are shouting at you for the reason."

Pros: "Opportunity to buy reasonably priced tickets"
Cons: "Being charged for carry-on luggage and choosing my seat online. 2.99 for a cup of coffee"

Pros: "Flights were easy to board and on time"
Cons: "Multiple payments for seats and just cramped"

Pros: "Was an extremely quick process from check in to boarding. Super fast flight and very helpful staff."
Cons: "Main issue was that I had to wait at the back of the plane because I was assigned a duplicate seat on my ticket to someone else but eventually they found my seat after everyone else was seated."

Cons: "I will never fly Frontier again. The low fare was eaten up with all of the extra charges that they charged."

Pros: "I liked the price."
Cons: "I didn't like not being able to bring a carryon without paying, but I can get all of my items in a backpack so that is what I will do on future flights. Drinks and snacks also cost additional money, but they will give you water with ice for no charge."

Pros: "Plane was on time."
Cons: "Frontier Airline presents its fares as reasonable. But then charge for everything. I'm surprised the oxygen was free."

Pros: "Nice staff!!"
Cons: "Delayed so many times and then escorting people off the plane"

Pros: "Nothing"
Cons: "The chairs do not move at all. The trays in front of you to use for a laptop or book, well my phone barley fit as well with a glass of water."

Pros: "The crew was relaxed, and handled problems quickly"
Cons: "No reading lamp"

Pros: "The flight attendants were all very nice and helpful. Leaving Denver was ok. The seats were uncomfortable."
Cons: "The people at the gates leaving San Antonio were rude. I understand the policy they have for luggage fees , but my husband is active military. As his spouse I have the right to check in his bag for him at the gate , I even had his and my id to show them . The only reason I was trying to check one bag at the gate was because my husband was feeling sick and I'm pregnant I can't lift heavy things. One worker dosent know the policy and asked her manager , but they didn't want to help us politely , kept giving me excuses why I couldn't check the bag in for him , finally they did take care of it but with my husband having to stand there in front of them , but they didn't tell him anything. Too have a policy that really does help military service men and women is a great idea and really nice, but too be rude about following that policy , and not helping the spouse of the military member , trying to charge me for my husband's bag and giving me a hard time isn't the way to show support to our troops. They like to take advantage of everything that they can charge extra for , which makes most people not have a good experience flying. Yes cheapest ticket until you add in your baggage fees $35-$60 , drinks and snacks , seats if you want your party to seat together or a certain seat."

Cons: "I was surprised that I had to pay for my carry on, I could not choose my seat and customer service was poor."

Pros: "The plane was clean. The crew was pleasant but didn't seem to love their job"
Cons: "One ticket agent to check bags for a full flight. We almost missed the flight because she didn't have help. Frontier does not honor Precheck, very disappointing. Once we landed, we sat on the plane for over an hour because there was another plane at our gate. They didn't know which baggage carousel our bags would arrive, so we waited an additional 30 min. My bag never arrived and customer service rep was flustered and slow. Bag never made it on the plane in San Antonio even though it was checked (per my claim stub) 1 hour prior to departure. It was a perfect storm of an evening. Frontier has cheap flights but you get what you pay for. Next time: Southwest."

Pros: "The woman seated behind me referred to us flying in "this tuna can." I'd say that's accurate; the plane sounds like it's going to fall apart upon takeoff, there is no leg room, and the "tray table" is about 5x7"."
Cons: "Extra charge of $30-40 for second carryon. Fly this airline with a single purse or backpack; any more than that will cost you! Only water is free -- BYO snacks and beverages."

Pros: "Convenient departure and arrival time. Fair price"
Cons: "Cramped Seating"

Cons: "Worst flight experience ever! Never flying with frontier again!!!"

Pros: "Bags didn't get lost"
Cons: "Added Charges for each seat upon check-in Added charges for each checked bag AND each carry-on bag Only water was free on flight, I was afraid to ask for ice Changed gate 3 times in a two hour lay-over Flight times changed on all flights so you had to constantly check I asked a Frontier employee two questions, she answered one, then walked away Seats were extremely uncomfortable and cramped Don't recommend flying this airline"

Pros: "I liked the timeliness of the boarding process."
Cons: "I did not like the attitude of the one of the male flight attendants and found that he was unprofessional. The seats were the most uncomfortable seats I've had to sit in during a flight. The airline doesn't offer free complimentary drinks and they still don't offer a TSA precheck option for their flights."

Pros: "The boarding process was standard."
Cons: "The plane absolutely beyond dirty. The tray tables are half the size of other airlines, and had clearly not been cleaned for awhile. There was food covering the entire floor of the plane. I am not an overly sensitive person to cleanliness/germs but this was beyond disgusting. Oh, and don't plan on getting comfortable- the seats are hard and do not recline. Last but not least, one leg of our flight had the most rude flight attendants I have ever witnessed."

Pros: "Stewardess was funny."
Cons: "Everything else."

Cons: "Seats do not recline, no place to plug into the seat for music, have to pay for carry on luggage."

Pros: "I gave up my seat so a family could sit together. I was given a seat in the front row of the plane (what they consider first class). Before take off there were horrible odors as if someone near me was having stomach issues. It went on the whole hour flight finally the guy sitting one seat over pointed out first row (first class) was right by the restroom. Next time I'll choose the exit row."
Cons: "Boarding was late like always. Once we arrived at the gate we had to wait 10 minutes for the gate agent to figure out the breezeway"

Pros: "none"

Pros: "One of the flight attendants was helpful."
Cons: "One of the flight attendants Was in a bad mood. You have to pay for your luggage and drinks/snacks, it took forever for luggage to arrive at baggage claim."

Pros: "I did like the fact that everyone was charged for luggage... whether it was carry on or checked. ... The ice water was nice."
Cons: "But, the fact that you paid for any seat before boarding Advertised prices should also include an asterisk which mentions the added price of luggage and seat prices... which makes the price of the actual ticket less of a bargain..."

Pros: "We had to wait for a long time inside the aircraft after landing in Denver before reaching the alight gate. I understand that this is due to a shutdown of Denver airport. We were worried about the possibility of missing the connecting flight to SFO."
Cons: "We liked the way the situation was managed by the crew. We liked the cooperation by the passengers so that the co-passengers to connecting flight like SFO and Portland."

Pros: "Absolutely nothing"
Cons: "The flight was delayed made me miss my connecting flight couldn't get a flight out till tomorrow morning none of the workers seemed like they could do anything to help I want my full refund"

Cons: "No company should succeed using a business model that treats customers this badly. Your ticket buys nothing: you pay extra for a seat, extra for taking anything (whether checked or carry-on), with prices going up as you get closer to your flight. Planes are finished to the cheapest possible standard: stiff, unpadded seats that do not recline, so rows are closer together; "tray tables" that are five inches deep; no amenities anywhere. Naturally, nothing is available on board without cost, including water. Three of four legs of our flights were more than an hour late, some of it avoidable, but company policy clearly called for cost savings over customer needs. We will NEVER fly Frontier again and urge everyone else to avoid this carrier like the plague."

Pros: "Crew was professional, friendly and helpful. Economy seating seemed to have decent leg room but the seats are uncomfortable."
Cons: "I don't like all the hidden costs of Frontier. You bought a ticket, great! Oh, by the way, now you have to pay for a seat on the plane when you check in. You want to take a bag? Well that's extra, even if you carry it on yourself. Oh we're sorry; Frontier doesn't participate in TSA Pre-check program. That tiny cup of soda is also extra by the way."

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COVID-19 information

Safety measures for airlines flying from San Antonio to Denver

Airlines flying from San Antonio 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 San Antonio to Denver

Mandatory masks

Masks required on board, masks provided on flights from San Antonio to Denver

Social distancing seating

Middle seats unavailable to book on flights from San Antonio to Denver

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from San Antonio to Denver

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Recent round-trip flight & bus deals

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Flights $423 2h 16m
Buses $320 36h 07m
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