SAT - DEN

$42 Find Cheap Flights from San Antonio to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Antonio to Denver departing on 10/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Antonio to Denver, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Antonio to Denver, as well as popular online travel agencies
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Cheap Flights from San Antonio to Denver (SAT-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Antonio to Denver that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Antonio to Denver

Thu, Oct 16 - Thu, Oct 16
Frontier Logo
12:09 pm - 1:33 pmSAT-DEN
2h 24mnonstop
Frontier Logo
4:27 pm - 7:41 pmDEN-SAT
2h 14mnonstop
$88Frontier
Find Deal
Fri, Nov 7 - Mon, Nov 10
Frontier Logo
8:25 pm - 9:48 pmSAT-DEN
2h 23mnonstop
Frontier Logo
4:16 pm - 7:30 pmDEN-SAT
2h 14mnonstop
$89Frontier
Find Deal
Sat, Oct 18 - Thu, Oct 23
Frontier Logo
5:32 pm - 6:53 pmSAT-DEN
2h 21mnonstop
Frontier Logo
8:00 am - 11:14 amDEN-SAT
2h 14mnonstop
$101Frontier
Find Deal
Sun, Nov 2 - Sat, Nov 15
Frontier Logo
8:25 pm - 9:48 pmSAT-DEN
2h 23mnonstop
Frontier Logo
11:00 am - 2:17 pmDEN-SAT
2h 17mnonstop
$105Frontier
Find Deal
Fri, Oct 3 - Sun, Oct 5
Frontier Logo
7:25 pm - 8:48 pmSAT-DEN
2h 23mnonstop
Frontier Logo
6:00 am - 9:10 amDEN-SAT
2h 10mnonstop
$107Frontier
Find Deal
Sat, Oct 25 - Sun, Oct 26
Frontier Logo
5:32 pm - 6:53 pmSAT-DEN
2h 21mnonstop
Frontier Logo
6:55 am - 10:09 amDEN-SAT
26h 14m1 stop
$110Frontier
Find Deal
Mon, Oct 6 - Sat, Oct 11
Frontier Logo
8:20 pm - 9:48 pmSAT-DEN
2h 28mnonstop
Frontier Logo
1:22 pm - 4:37 pmDEN-SAT
2h 15mnonstop
$112Frontier
Find Deal
Wed, Oct 8 - Sat, Oct 11
Frontier Logo
3:59 pm - 5:25 pmSAT-DEN
2h 26mnonstop
Frontier Logo
1:22 pm - 4:37 pmDEN-SAT
2h 15mnonstop
$113Frontier
Find Deal
Sat, Oct 18 - Sat, Oct 25
 Logo
5:32 pm - 6:53 pmSAT-DEN
2h 21mnonstop
 Logo
2:20 pm - 11:40 pmDEN-SAT
8h 20m1 stop
Wed, Oct 15 - Sun, Oct 26
 Logo
7:00 am - 1:23 pmSAT-DEN
7h 23m1 stop
 Logo
8:00 am - 11:14 amDEN-SAT
2h 14mnonstop

Everything you should know

Our travelers' advice
AI-generated summary based on content written by travel experts
Frontier's Economy Bundle includes a carry-on and seat choice.
Security lines at San Antonio are exceptionally short.
Expert advice
Expert advice
Expert advice
Expert advice
Video guide: How to find cheap flights to Denver
Watch video
Watch video
Watch video
Watch video
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 39% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 23% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$88
Overall average: $148
Frontier
Thu 10/16Thu 10/16
SAT - DEN • Non-stop
Cheapest one-way
$42
Typical prices: $52-202
Frontier
Fri 10/3
SAT - DEN • Non-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Denver!
Expert advice

Expert advice for your flight from San Antonio to Denver

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Frontier

Frontier's Economy Bundle includes a carry-on and seat choice, ideal for budget travelers.


Opt for Premium Bundle for priority boarding and extra legroom, just $20 more than Economy.

Read more about Frontierby Stefanie Waldek
United Airlines

United's Economy Plus offers up to six inches more legroom than standard economy seats.


Consider Priority Boarding to ensure overhead bin space for your carry-on.

Southwest

Southwest offers free carry-on and personal item, but checked bags now incur fees.


Southwest's Rapid Rewards program offers unlimited rewards seats and no blackout dates.

Read more about Southwestby Blane Bachelor
Airports
SAT

Security lines at SAT are exceptionally short. Even during busy times, waits rarely exceed 15 minutes, making it a breeze for early flights.

Read more about SATby Brandon Schultz
DEN

Take the RTD A line train from DEN to downtown Denver. It's affordable and takes about 40 minutes, offering a convenient city connection.

Read more about DENby Harriet Baskas
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Frontier and United Airlines

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Brandon Schultz

Brandon Schultz

Expert on SAT

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more
Harriet Baskas

Harriet Baskas

Expert on DEN

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Booking Insights

KAYAK's insights & trends for San Antonio to Denver flights

Get data-powered insights and trends into flights from San Antonio to Denver to help you find the cheapest flights, the best time to fly and much more.

Find cheap flights to Denver
Find cheap flights to Denver

Planning a trip from San Antonio to Denver? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

What’s the cheapest day of the week to fly from San Antonio to Denver?

The average price of all round-trip flights from San Antonio to Denver clicked on KAYAK for each day over the last 12 months.

For San Antonio to Denver, Thursday is the cheapest day to fly on average and Monday is the most expensive. Flying from Denver back to San Antonio, the best deals are generally found on Saturday, with Monday being the most expensive.

What is the cheapest month to fly from San Antonio to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Antonio to Denver, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Antonio to Denver is October, where tickets cost $148 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $235 and $216 respectively.

How far in advance should I book a flight from San Antonio to Denver?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Antonio to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Antonio to Denver, you should book around 2 weeks before departure, which saves you about 39% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low seasonApril
Cheapest flight$42
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly with an average 13% increase in price.
Flight from San Antonio to Denver

When to book flights from San Antonio to Denver

Are your dates flexible? Find out the best times to travel from San Antonio to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Antonio to Denver

  • How can I get from the Denver International Airport (DEN) into the city?

    Denver International Airport (DEN) is about 35min from downtown. The city has a light rail system that goes from the airport to Denver Union Station, which is in the heart of the city. To catch the train, you can do so at the rail station which is close to the airport hotel.

  • What kind of food can I purchase at the San Antonio International Airport (SAT)?

    Before boarding your plane, you can enjoy dining at a variety of restaurants. If you want something quick, there is a pretzel shop and a submarine sandwich shop in the terminal. If you're looking to sit down and dine, there is a pizzeria, a Mexican eatery, and a Mediterranean cafe.

  • How do I rent a car at the Denver International Airport (DEN)?

    There are several car rental agencies with offices at this Colorado airport. Therefore, you'll have your pick of companies to rent from including Hertz, National, and Thrifty. To get to the car rental offices, you'll catch a shuttle from outside of baggage claim. Simply look for the shuttle with the name of your car rental company. When you return the car, you'll drop it off and ride the shuttle back to the airport to catch your flight.

  • What amenities and services are there for passengers at the Denver International Airport (DEN)?

    There is a spa at the airport in the Mezzanine where you can get a massage or another spa service. You can enjoy a quick bite at the pretzel or coffee shop, or a sit-down meal at the steakhouse or sports bar.

  • What is the cheapest flight from San Antonio to Denver?

    In the last 3 days, the lowest price for a flight from San Antonio to Denver was $42 for a one-way ticket and $88 for a round-trip.

  • Do I need a passport to fly between San Antonio and Denver?

    No

  • Which airlines offer Wi-Fi service onboard planes from San Antonio to Denver?

    Delta, American Airlines, Alaska Airlines, Hawaiian Airlines, and United Airlines offer inflight Wi-Fi service on the San Antonio to Denver flight route.

  • Which aircraft models fly most regularly from San Antonio to Denver?

    The Boeing 737-800 is the aircraft model that flies most regularly on the San Antonio to Denver flight route.

  • Which airline alliances offer flights from San Antonio to Denver?

    Star Alliance is the only airline alliance operating flights between San Antonio and Denver.

  • On which days can I fly direct from San Antonio to Denver?

    There are nonstop flights from San Antonio to Denver on a daily basis.

  • Which is the best airline for flights from San Antonio to Denver, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from San Antonio to Denver are Southwest and Delta. With an average price for the route of $304 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $196 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from San Antonio to Denver?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Antonio to Denver.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Antonio to Denver?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from San Antonio is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Antonio to Denver?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Denver with an airline and back to San Antonio with another airline. Booking your flights between San Antonio and DEN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Antonio to Denver?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Denver from San Antonio up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from San Antonio to Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for $105 or less one-way and $161 or less round-trip.
  • There is a Westin at the Denver International Airport (DEN). This is convenient if your flight gets into Denver late. The Westin Denver International Airport has its own restaurant and bar, fitness center, and indoor pool. It is located outside of Jeppesen Terminal.
  • When catching your flight to Denver, your driver can drop you off at the departure level in front of your terminal at the San Antonio International Airport (SAT). However, you will have to get out of and unload your baggage quickly because parking is not allowed here.
  • There are several ATMs at the Denver International Airport (DEN) in the Jeppesen Terminal. In Terminal 6, there is also a credit union where you can conduct financial business.
  • If you'd prefer to drive yourself to the San Antonio International Airport (SAT), long-term parking is available in the airport's garage. This is your best option during the winter months. However, if you want to save money, there are a couple of economy lots near the cell phone lot.
  • The San Antonio Airport is a medium-sized airport with a variety of services and amenities. It is less than a 10min drive from downtown. The airport has two terminals and twenty-four gates.
  • When you land at the Denver International Airport (DEN), head to the information desk to learn about local tourist attractions, hotels, transportation into the city, and more. The information desk is located in the Jeppesen Terminal, Level 5.

Prefer to fly direct from San Antonio to Denver?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from San Antonio to Denver Intl.
Find which airlines fly direct from San Antonio Airport to Denver Intl Airport, which days they fly and book direct flights.

Direct departures

San Antonio to Denver Intl

Monday

Frontier, Southwest, United Airlines

Frontier, Southwest, +1 more

Tuesday

Frontier, Southwest, United Airlines

Frontier, Southwest, +1 more

Wednesday

Frontier, Southwest, United Airlines

Frontier, Southwest, +1 more

Thursday

Frontier, Southwest, United Airlines

Frontier, Southwest, +1 more

Friday

Frontier, Southwest, United Airlines

Frontier, Southwest, +1 more

Saturday

Frontier, Southwest, United Airlines

Frontier, Southwest, +1 more

Sunday

Frontier, Southwest, United Airlines

Frontier, Southwest, +1 more

See more direct flights

Direct returns

Denver Intl to San Antonio

Monday

Frontier, Southwest, United Airlines

Frontier, Southwest, +1 more

Tuesday

Frontier, Southwest, United Airlines

Frontier, Southwest, +1 more

Wednesday

Frontier, Southwest, United Airlines

Frontier, Southwest, +1 more

Thursday

Frontier, Southwest, United Airlines

Frontier, Southwest, +1 more

Friday

Frontier, Southwest, United Airlines

Frontier, Southwest, +1 more

Saturday

Frontier, Southwest, United Airlines

Frontier, Southwest, +1 more

Sunday

Frontier, Southwest, United Airlines

Frontier, Southwest, +1 more

See more direct flights

Reviews of the top 5 airlines serving from San Antonio to Denver

 
See real verified KAYAK customer reviews for airlines flying from San Antonio to Denver. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Antonio to Denver? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4242 reviews
7.5Entertainment
8.0Comfort
8.1Boarding
8.6Crew
7.0Food
Airline reviews

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

2.0 MediocreMike, Aug 2025AUS - BWI
Read more Southwest reviews

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

Near 4 hour flight with only 1 service. Had to use call button to request water. Internet and power not working until into flight. Internet would stop working during flight.

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

The Southwest employees (all two of them) were very nice and cheerful despite the fact the line to self-check a bag (simply drop it off) was hundreds of people long. Thank God I arrived early to the airport because I stood in this line for at least an hour. Once on the flight that had been delayed by an hour, we had no Wi-Fi and thus no entertainment. Finally, I hope the investor strong arm tactics against Southwest pay off in a short-term windfall to your C-Suite because the rest of you are screwed. I have been a faithful Southwest customer for 15 years due to everything you just got rid of. I'm flying to Idaho and Washington in October, both places I used to simply book with Southwest without a second thought now with Frontier (Washington) and United (Idaho) because they offer everything the "new" Southwest does but cheaper and at better times, destinations, etc. This really makes me sad...

Flights delayed by 4-6 hours. Boarding was a mess and unclear. Bags were not at arrival airport and had never even been put on the plane. No idea when I’ll get them. Don’t fly into Denver!

Southwest is typically delayed, and it gets wearisome. It is no longer a discount airline and you get way less than you pay for when it comes to comfort and Ce.

We sat on the plane on the tarmac for 4 hours.

Flight crew and cabin crew were great. I had to rearrange flights because my original flight was 3hrs delayed for weather, the rub is the flight I moved to boarded on time then we sat at the gate for 2 hours because scheduling stole our first officer for another flight, TWICE. Then our actual FO was an hour delayed. To make it worse my original flight went from a 3 hour delay to departing 15min EARLY. Just poor scheduling operations all around.

Bring back peanuts Take our drink orders when were all seated, especially after you switch to assigned seating.

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

Very rough getting into denver. my kid threw up it was so rough.

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

Flight attendant moved my bag without notifying me and was rude to me when I asked him about it. There was no reason to move it.

American airlines suck they delay the flights all the time made me sleep in an airport because my flight was delayed and I miss my connecting flight

There's nothing I liked about it. For first off I scheduled this trip two weeks in advance then they delayed my flight which messed up my whole trip. So I scheduled it for the following weekend thinking there won't be a delay and guess what as soon as I got to the airport we said in the airplane on the tarmac for an hour and a half. Not only was it delayed I missed my connecting flight meaning I had to stay the night at Dallas-Fort Worth airport sleeping on the floor. I will tell you this I will never fly American airlines ever again I have had nothing but horrible experience with them and I just throw money at them

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

Our bags took a long time to get unloaded once we landed.

My flight was delayed for several hours. Sitting at gate 16 for several hours, I got a text from Kayak the gate changed to 9 before it was announced. Very bad communication at each gate from American Airlines employees. I received 10 notifications of delay from Kayak. My vacation started off horrible! I will write to American Airlines corporate office also.

My Internet did not work for Outlook email or basically anything. I paid for one hour of in-flight usage and it was terrible. I spent a lot of time on different sites and browsers with no luck and a lot of frustration. Other than that, the flight was on time, crew was nice, service was fine. Seat was OK even though I paid for the extra 6 inches. I cannot imagine how tight the seats in the back must be.

Delayed flight that lead to a missed connection and a 5-hour trip became a 12-hour flight 🙄

No issues. They did change our gate FOUR times in about 30 minutes which was mildly annoying but the flight was fine.

Great flight. No issues at all. I still think boarding could be more efficient but otherwise, a good experience.

Crew should be nicer and emphatic with customers. Same cookies as the past 20 years. Seat are ok and the plane was clean though it was delayed.

Seats were new and comfortable. Staff was fine. Missed my connection due to weather -which wasn’t their fault- but got no help at all. Gate staff sent me to customer service, which was and stayed unstaffed. Sign with QR code directed me to call or chat. Chat was useless. Call was returned after an hour. No itinerary offered by Frontier could get me home in less than 30 hours. Rebooked with another airline and got a partial refund that came to about 10 percent of what I paid to get home.

The experience was good. No frills but I got there safe and sound and on time.

As every law enforcement agency I could imagine surrounded the plane and we didn’t disembark for 2 hours and then had to stick around for another hour to go get our personal belongings after leaving them behind and being bused away from the plane, it was scary and inconvenient. We were given no information as to why this was happening. Lack of communication with passengers was disappointing.

Frontier Airlines was AWFUL. I was an hour early for my flight and the lady refused to check me in. I had to purchase a whole new ticket with a different airline.

Late, terrible communication, horrible planning of passenger seating until the literal last minute. One of the worst flying experiences of my life. Y'all suck

First of all, we never got on the connecting flight to Denver. They delayed our flight for two hours. If we would have gotten on that flight, we would have been stuck in Denver for 13 hours. So we re- routed our flight for a straight through flight to Oklahoma two days later. THEN, they delayed that flight for two hours. After that we were able to finally get on our flight and come home. Frontier Airlines - one of the worst airlines I have ever been on.

Terrible communication with weather delay, lost baggage, near impossible to reach customer service

My tickets got canceled on me by your site and I didn't have a flight. Then you kept sending me emails on the status of q flight I didn't have tickets for.

Flight was late. Missed connecting in Denver. My new flight is more than 24 hours later and I have no room, vouchers, or compensation, and might also be bumped from the one tomorrow.

This was one of the first frontier airline flights this spring that wasn't delayed. It actually left on time. Some of the flight crew did not look happy, they didn't smile when the passengers were boarding or getting off the plane, and the passengers initiated greetings, not the staff. To me this was an odd experience to have with any flight/airline. I had a bad experience booking this flight. The price didn't solidify until late hours into the night. Ever time I purchased the ticket, I either received a denial email or an error because the price has changed, but it was never reflected on the flyfrontier or kayak websites until way after midnight on the date of travel. This caused me anxiety and irritation with the websites. Then I noticed a mishap with my name on my voucher as I went to check in, it was incorrect. When I proceeded to correct it, Frontier had no easy, let alone free, way to remedy it. I couldn't correct my name without a $75 charge, I couldn't cancel my voucher to repurchase it with the correct name without a $100 charge, because it was too close to departure. Then calling frontier was nearly impossible to remedy the situation with a human. It's already difficult to want to choose frontier because of all the upcharges, but you feel kinda trapped into doing so because it's the more affordable airline.

Everything you need to know for your flight from San Antonio to Denver

Information on your arrival and departure airports

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