DEN - SAT

$39 Find Cheap Flights from Denver to San Antonio

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to San Antonio departing on 5/13. 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, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to San Antonio, 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 Denver to San Antonio, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$109
Typical prices: $283-$168
Frontier
Tue 5/19Thu 5/21
DEN - SAT • Non-stop
Cheapest one-way
$39
Typical prices: $97-$175
Frontier
Wed 5/13
DEN - SAT • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Frontier's Economy Bundle includes a carry-on and seat.
Southwest offers two free checked bags for luggage.
Expert advice
Expert advice
Expert advice
Expert advice
Nonstop flights
You can fly direct with Frontier, Southwest and United Airlines. Average duration is 2h 14m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 28% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 20% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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 San Antonio!
Flight Deals
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Expert advice
Flight Deals

Cheap Flights from Denver to San Antonio (DEN-SAT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to San Antonio 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 Denver to San Antonio

Tue, May 19 - Thu, May 21
Frontier Logo
3:42 pm - 6:59 pm
DEN
-
SAT
2h 17mnonstop
Frontier Logo
7:54 pm - 9:23 pm
SAT
-
DEN
2h 29mnonstop
$109Frontier
Tue, Aug 11 - Thu, Aug 13
Frontier Logo
3:40 pm - 6:54 pm
DEN
-
SAT
2h 14mnonstop
Frontier Logo
7:51 pm - 9:26 pm
SAT
-
DEN
2h 35mnonstop
$112Frontier
Tue, Sep 1 - Thu, Sep 3
Frontier Logo
3:40 pm - 6:56 pm
DEN
-
SAT
2h 16mnonstop
Frontier Logo
7:51 pm - 9:25 pm
SAT
-
DEN
2h 34mnonstop
$119Frontier
Sat, May 16 - Tue, May 19
Frontier Logo
3:42 pm - 6:59 pm
DEN
-
SAT
2h 17mnonstop
Frontier Logo
7:54 pm - 9:23 pm
SAT
-
DEN
2h 29mnonstop
$123Frontier
Sat, May 16 - Wed, May 20
Frontier Logo
3:42 pm - 6:59 pm
DEN
-
SAT
2h 17mnonstop
Frontier Logo
7:54 pm - 9:23 pm
SAT
-
DEN
2h 29mnonstop
$124Frontier
Tue, May 19 - Tue, May 19
Frontier Logo
3:42 pm - 6:59 pm
DEN
-
SAT
2h 17mnonstop
Frontier Logo
8:59 pm - 3:25 am
SAT
-
DEN
7h 26m
1 stop
$125Frontier
Thu, Aug 20 - Mon, Aug 24
Frontier Logo
3:40 pm - 6:56 pm
DEN
-
SAT
2h 16mnonstop
Frontier Logo
7:51 pm - 9:25 pm
SAT
-
DEN
2h 34mnonstop
$127Frontier
Sat, Aug 29 - Mon, Aug 31
Frontier Logo
3:40 pm - 6:56 pm
DEN
-
SAT
2h 16mnonstop
Frontier Logo
7:51 pm - 9:25 pm
SAT
-
DEN
2h 34mnonstop
$128Frontier
Sat, May 16 - Tue, May 19
Frontier Logo
12:34 pm - 8:14 pm
DEN
-
SAT
6h 40m
1 stop
Frontier Logo
7:54 pm - 9:23 pm
SAT
-
DEN
2h 29mnonstop
$130Frontier
Sat, May 16 - Tue, May 19
Frontier Logo
3:42 pm - 6:59 pm
DEN
-
SAT
2h 17mnonstop
Frontier Logo
7:54 pm - 9:23 pm
SAT
-
DEN
2h 29mnonstop
$132Frontier
Booking Insights

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

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

How much is a round-trip flight from Denver to San Antonio?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Denver to San Antonio departing in May.

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

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

Your flight ticket price will generally be cheaper if you fly to San Antonio on a Friday and more expensive on a Monday. On your return trip to Denver, you should consider flying back on a Thursday, and avoid Mondays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to San Antonio, 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 Denver to San Antonio is September, where tickets cost $177 (return) on average. On the other hand, the most expensive months are June and April, where the average cost of round-trip tickets is $279 and $266 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to San Antonio, 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 Denver to San Antonio, you should book around 2 weeks before departure, which saves you about 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Expert advice

Expert advice for your flight from Denver to San Antonio

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Frontier and United Airlines

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.

Blane Bachelor

Blane Bachelor

Expert on Southwest

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.

Brandon Schultz

Brandon Schultz

Expert on SAT

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.

Harriet Baskas

Harriet Baskas

Expert on DEN

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.

Good to know

Low seasonJanuary
Cheapest flight$39
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from Denver to San Antonio

When to book flights from Denver to San Antonio

Are your dates flexible? Find out the best times to travel from Denver to San Antonio 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 Denver to San Antonio

  • What flight options do I have from Denver to San Antonio?

    You can fly nonstop from Denver International Airport (DEN) to San Antonio International Airport (SAT). Some of the airlines that have nonstop flights on this route are Frontier, United Airlines, and Southwest Airlines. You can also find layover flights from DEN to SAN. Frontier Airlines also has a flight with a layover at Harry Reid International Airport (LAS). You can find a flight by American Airlines with a layover at the Dallas/Fort Worth International Airport (DFW).

  • Is there an onsite hotel at Denver International Airport (DEN)?

    You can access the Westin Denver International Airport hotel by going up the escalator at the Transit center of Jeppesen Terminal. If you want a place to stay close to the airport, the hotel is within a short walking distance of the main terminal. The hotel offers both shuttle and public transport services.

  • How do I get from San Antonio International Airport (SAT) to downtown San Antonio?

    On arrival at SAT Airport, you can opt for public transportation from the airport to downtown San Antonio. The Super Shuttle is the only authorized shared-ride shuttle at the airport, which departs every 15min daily. You can also catch the VIA Metropolitan Transit buses which have a clearly marked stop between Terminals A and B at the Arrivals/Baggage level. You can also opt for taxi services which stop on the outer curbside of Terminal A.

  • What services does Denver International Airport (DEN) offer for people with reduced mobility?

    DEN is a partner with the Hidden Disabilities Sunflower organization which offers the Sunflower Lanyard Program. This is a subtle way of notifying the airport’s staff that you may need assistance due to a hidden disability. You can get the Sunflower Lanyard at the customer service desk or a DEN Ambassador at the center of each concourse. DEN has also made sure that all its services are wheelchair accessible, such as the elevators, restrooms, escalators, and TTY phones. DEN also utilizes the remote Aira way-finding agents to direct the blind or people with low vision.

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

    In the last 3 days, the lowest price for a flight from Denver to San Antonio was $39 for a one-way ticket and $109 for a round-trip.

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

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Denver to San Antonio?

    Denver and San Antonio are both served by 1 main airport. You will leave Denver from Denver Intl and will be arriving at San Antonio.

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

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

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

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Denver to San Antonio flight route.

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

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Denver and San Antonio, with SkyTeam being the most commonly used for this route.

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

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

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

    The two airlines most popular with KAYAK users for flights from Denver to San Antonio are Southwest and Delta. With an average price for the route of $285 and an overall rating of 7.9, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $256 and an overall rating of 7.9.

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

    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 Denver to San Antonio.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Antonio from Denver 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 Denver to San Antonio?

    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 San Antonio with an airline and back to Denver with another airline. Booking your flights between Denver and SAT 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 Denver to San Antonio?

    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 San Antonio from Denver 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 Denver to San Antonio

  • Looking for a cheap flight? 25% of our users found flights on this route for $139 or less one-way and $157 or less round-trip.
  • If you’re a mother traveling with a young toddler, Denver International Airport (DEN) offers tranquil nursing rooms for you to nurse or pump. You can find the nursing rooms at the Center of Jeppesen Terminal, Level 5, and inside the women's restroom,
  • On arrival at San Antonio International Airport (SAT), you can rent a car from different rental companies at the rental counters found at the facility of Consolidated Car Rentals. You can get to the rental car facility by taking the elevator or escalator to the Mezzanine Level in Terminal B and crossing the Sky Bridge.
  • If you are traveling with your furry travelers, you can find the pet relief areas at DEN for them to do their business before the flight. You can find the pet relief areas pre-security outside of Door 200 on the west side of Jeppesen Terminal, and post-security at the A, B, and C Gates near the respective U.S. Mail Drops.
  • If you need assistance at the San Antonio International Airport (SAT), you get free assistance from the trained Airport Ambassadors volunteers. The Airport Ambassadors visibly wear cowboy hats and offer information about the airport, hotels, ground transportation, and directions within the terminals.
  • For those who get nervous when flying, the Denver International Airport (DEN) offers the Canine Airport Therapy Squad (CATS) which is an animal therapy program. There are 80 dogs and one cat that you can hug pet, and take pictures with while at the airport. You can spot the DEN CATS anywhere in the airport, they have violet vests.

Prefer to fly direct from Denver to San Antonio?

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

Direct departures

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

Direct returns

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

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

 
See real verified KAYAK customer reviews for airlines flying from Denver to San Antonio. 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 Denver to San Antonio? 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.
7.9
SouthwestOverall score based on 4307 reviews
8.6Crew
8.1Boarding
8.0Comfort
7.0Food
7.5Entertainment
Airline reviews

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

8.0 ExcellentCheryl, Apr 2026
DEN - SBA
Read more Southwest reviews

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

Southwest is kind of a slum airline. It’s gotten more expensive over the years for less and less service. I am a Southwest Chase Visa card holder and was forced to choose a seat in the 26th row in the middle seat. However my wife who is a rewards member but doesn’t hold a card or anything else, gets randomly assigned a normally paid seat in row 6! How does that work?

The seat was not comfortable. 1D. My back was sore all night and the next day.

One of the best airlines for fast boarding, on time arrivals, and top notch service!

I elected to pay for the upgrades and found very little difference

The new seating arrangement is so over priced for what you get.

Snacks are always pretzels. Why can't you also offer peanuts ?

Flight was hours late, unable to sit next to spouse, I have had so much better experiences. Substantially better, only saving grace was that it was a short flight.

An entire day of delays. Cost lots of money. Meals and a hotel.

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

Seats in Delta Main are unbelievably close to the seat in front of. Hard to get a backpack under the seat.

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

Really hard landing... as in slammed into the runway then hit the brakes really hard ...

Every staff member was professional, friendly and courteous. The pizza twist was ok. It was warm but too much dough.

Wonderful in-seat entertainment with seatback screens and huge selection of quality movies. The ability to bluetooth connect headphones was amazing.

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Flight was late - I was downgraded from first class to coach

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Terrible. They wouldn't allow me on my flight on the 14th..

Cancelled the flight half hour before boarding. Then cancelled the connecting flight too.

I would like a refund for the extra cost the seat I paid for. An oversized person sat next to me and I couldn’t fit on my seat and had to move to another seat.

This was a hard flight. 3 delays out of OKC (1 on the Tarmac). Delay in Atlanta coming to Dallas. total travel time was the equivalent of driving from OKC to Atlanta.

As we approached Denver, we encountered quite a bit of turbulence. I know this can sometimes be the case as I frequently fly this route but not on American. My gripe: Usually a pilot or co-pilot alerts passengers to the possibility of turbulance ahead of time. This did not occur nor did he communiucate during what was a pretty rough ride.

Got home at 3am after deboarding the plane. No compensation offered by American

Flights on time w/o delays. However, my baggage was damaged. Ground crew, throws baggage from plane to the baggage carrier, carelessly.

Business class was very good, one of my best flights

American flight was diverted and delayed but app didn’t show that information so I wasn’t able to change my connection until the last min.

The plane was very creaky and lots of ringing. Plane was dirty and dingy. I couldn't hear the captain's announcements from the flight deck. Not sure if it was the captain or the audio equipment, but good thing there wasn't an emergency where we needed clear instructions. The overhead compartments were clearly full, but the flight crew allowed people to stand in the back with their carry on luggage. Then after everyone boarded, they had to go to the front to gate check their luggage because there was no room for their bags and then they returned to their seats...such a waste of time when clearly the overhead compartments were full when they originally boarded.

Air condition was not working for long both after boarding and also after landing ; unbearably hot and suffocating

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

Not clean and was told I would get a great seat and it was not great at all

Delayed. Text notifications were slow. Not much information o what was happening. Boarding was slow and confusing. Wasn’t even offered water other flight. Had to ask. No entertainment at all. Felt like.a Greyhound bus.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

Frontier is the Walmart of airlines. Frontier has removed adjustability and comfort from their seats to make the flight lighter and save gas. This makes it impossible to sleep on their flights. Their customer service is abysmal. Once, I bought a drink on the plane, and they swiped my credit card on the plane to pay for it. Then I got three weeks of daily notices from my bank telling me they tried to charge the wrong card number over and over again. I tried to call them, but they removed the ability to actually talk to someone that can resolve such a problem from their company to cut corners. The only way to talk to someone in person is to go to the check-in counter at the airport (40 minutes drive from my house). Eventually their system gave up on trying to charge the card, after 21 days of repeated tries. They don't pad their prices even a little to handle customer service issues like missed flights. They also have a blanket policy preventing helping you reschedule a missed flight if their system says you "cancelled" your own flight online. This is a major problem because their website is broken on mobile devices, the only web browser you have at the airport when their gate staff tell you that you have to reschedule your own missed flight online because they can't help you. I tried to reschedule my flight on my android device and instead, their website crashed and "cancelled" my missed flight. When I got to the counter, the agent argued with me for 5 minutes insisting that I intentionally cancelled my own flight (implying I had to buy another flight). She missed the point: the problem was that I could not buy another flight because their website is broken. I left to avoid more conflict with the "customer service" agent. I tried to redress my issue with their only other "customer service" chanel available: the contact form on their website. The response I got was more of the same: you cancelled your own flight, according to our website / computer records, therefore we won't help you. I was trying to explain the problem with their broken website that cost me hundreds of dollars by crashing / malfunctioning and resulting in a cancelled flight, but they only had deaf ears for this problem. Worst customer service I have ever experienced. I will never buy another Frontier flight again, because it is a risky, painful move that I will likely regret often.

What I expected, nickeled and dined and a frontier flight attendant loudly complained about her job and lack of communication as she headed to the gate on her cell phone. Not professional.

baggage clamed had to wait over a hour and half for all people on my flight it was terrible

My flight was canceled I was promised a reginf still not received.

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

Other airlines flying from Denver to San Antonio

Flights from the other most popular airlines that fly from Denver to San Antonio according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.