SFO - STL

$187 Find Cheap Flights from San Francisco to St. Louis

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 Francisco to St. Louis departing on 7/28. 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 St. Louis

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

Cheapest round-trip
$393
Typical prices: $306-$494
Frontier
Wed 9/2Sat 9/5
SFO - STL • 1 stop
Cheapest non-stop
$397
Typical prices: $429-$559
United Airlines
Wed 8/5Wed 8/19
SFO - STL • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
United Economy Plus adds up to six inches more legroom on this route.
Southwest Cash + Points and Rapid Rewards add flexible booking value.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $393 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Nonstop flights
You can fly direct with Southwest and United Airlines. Average duration is 3h 56m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top layover airports
Cheapest • Avg $236 (round-trip)
Shortest trip • 5h 41m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 45% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 20% price drop
Most popular
Good to know
Good to know
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We hope you love your trip to St. Louis!
Flight Deals
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Flight Deals

Cheap Flights from San Francisco to St. Louis (SFO-STL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to St. Louis 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 Francisco to St. Louis

Wed, Sep 2 - Sat, Sep 5
Frontier Logo
10:15 pm - 5:22 pm
SFO
-
STL
17h 07m
1 stop
Frontier Logo
6:45 pm - 8:40 pm
STL
-
SFO
27h 55m
2 stops
$393Frontier
Mon, Aug 17 - Sat, Aug 22
Frontier Logo
6:00 am - 7:23 pm
SFO
-
STL
11h 23m
1 stop
Frontier Logo
6:45 pm - 8:12 am
STL
-
SFO
15h 27m
1 stop
$394Frontier
Mon, Aug 31 - Sat, Sep 5
Frontier Logo
12:29 am - 4:31 pm
SFO
-
STL
14h 02m
1 stop
Frontier Logo
6:45 pm - 8:40 pm
STL
-
SFO
27h 55m
2 stops
$395Frontier
Thu, Aug 13 - Mon, Aug 17
Frontier Logo
10:18 pm - 8:57 am
SFO
-
STL
8h 39m
1 stop
Frontier Logo
8:08 pm - 10:25 am
STL
-
SFO
16h 17m
2 stops
$396Frontier
Thu, Aug 6 - Wed, Aug 12
Southwest Logo
11:05 pm - 7:55 am
SFO
-
STL
6h 50m
1 stop
Southwest Logo
8:25 am - 10:35 am
STL
-
SFO
4h 10mnonstop
$397Southwest
Sun, Aug 2 - Tue, Aug 4
Frontier Logo
10:10 pm - 8:57 am
SFO
-
STL
8h 47m
1 stop
Frontier Logo
7:03 pm - 8:40 pm
STL
-
SFO
27h 37m
2 stops
$398Frontier
Thu, Sep 24 - Mon, Sep 28
Frontier Logo
5:52 pm - 5:44 pm
SFO
-
STL
21h 52m
2 stops
Frontier Logo
6:41 pm - 5:40 pm
STL
-
SFO
24h 59m
1 stop
$399Frontier
Thu, Jul 9 - Tue, Jul 14
Frontier Logo
9:39 pm - 7:23 pm
SFO
-
STL
19h 44m
1 stop
Frontier Logo
8:08 pm - 11:27 am
STL
-
SFO
17h 19m
1 stop
$400Frontier
Thu, Aug 6 - Wed, Aug 12
Frontier Logo
10:23 pm - 7:23 pm
SFO
-
STL
19h 00m
2 stops
Frontier Logo
8:08 pm - 12:18 am
STL
-
SFO
6h 10m
1 stop
$403Frontier
Wed, Aug 5 - Sat, Aug 8
Southwest Logo
11:50 am - 5:40 pm
SFO
-
STL
3h 50mnonstop
Southwest Logo
5:20 pm - 9:25 pm
STL
-
SFO
6h 05m
1 stop
$407Southwest
Booking Insights

KAYAK's insights & trends for San Francisco to St. Louis flights

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

How much is a round-trip flight from San Francisco to St. Louis?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Francisco to St. Louis departing in September.

What’s the cheapest day of the week to fly from San Francisco to St. Louis?

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

When flying from San Francisco to St. Louis, you should consider leaving on a Thursday and avoid Mondays if you are looking for the best rates. For your return to San Francisco, you’ll find the best rates on Fridays and the most expensive ones on Sundays.

What is the cheapest month to fly from San Francisco to St. Louis?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to St. Louis, 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 Francisco to St. Louis is September, where tickets cost $415 (return) on average. On the other hand, the most expensive months are March and February, where the average cost of round-trip tickets is $623 and $615 respectively.

How far in advance should I book a flight from San Francisco to St. Louis?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Francisco to St. Louis, 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 Francisco to St. Louis, you should book around 4 weeks before departure, which saves you about 45% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Expert advice

Expert advice for your flight from San Francisco to St. Louis

 
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 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 and SFO

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.

Yulia Denisyuk

Yulia Denisyuk

Expert on STL

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Good to know

Low seasonJanuary
Cheapest flight$187
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from San Francisco to St. Louis

When to book flights from San Francisco to St. Louis

Are your dates flexible? Find out the best times to travel from San Francisco to St. Louis 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 Francisco to St. Louis

  • What is the preferred means of transport to the city center from STL airport?

    The bus ride from Lambert-St. Louis International Airport (STL) to the Central Business District of St. Louis takes around 30min and costs about $9 to $14 one way.

  • Can I rent a car at STL airport?

    Car rental agencies Alamo, Avis, and Budget are all present at the St. Louis Lambert International Airport for your convenience. The automobile rental firms provide a complimentary shuttle service that runs around the clock and goes directly to the off-airport facilities where customers are expected to return their cars.

  • Is there a hotel at SFO airport?

    Take pleasure in opulent suites with floor-to-ceiling windows that frame breathtaking views of the airport and the bay. The Grand Hyatt at SFO is a premium hotel located very next to San Francisco International Airport. The hotel, which is situated in a convenient location near the entrance to SFO, can be reached quickly and simply from all terminals by either the road or the AirTrain.

  • Where can I park at SFO airport?

    There are five lots for on-site parking at San Francisco International Airport. They are the Domestic Garage, International Garage G, International Garage A, Long Term Surface, and Long Term Garage. Valet parking is available at the airport, providing an additional 150 parking spots. There are plenty of parking lots at the airport, but they fill up quickly.

  • What is the cheapest flight from San Francisco to St. Louis?

    In the last 5 days, the lowest price for a flight from San Francisco to St. Louis was $187 for a one-way ticket and $393 for a round-trip.

  • Do I need a passport to fly between San Francisco and St. Louis?

    No

  • Which airports will I be using when flying from San Francisco to St. Louis?

    San Francisco and St. Louis are both served by 1 main airport. You will leave San Francisco from San Francisco and will be arriving at Lambert-St Louis.

  • Which airlines offer Wi-Fi service onboard planes from San Francisco to St. Louis?

    JetBlue, Delta, Hawaiian Airlines, Alaska Airlines, and American Airlines offer inflight Wi-Fi service on the San Francisco to St. Louis flight route.

  • Which aircraft models fly most regularly from San Francisco to St. Louis?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the San Francisco to St. Louis flight route.

  • Which airline alliances offer flights from San Francisco to St. Louis?

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

  • On which days can I fly direct from San Francisco to St. Louis?

    There are nonstop flights from San Francisco to St. Louis on a daily basis.

  • Which is the best airline for flights from San Francisco to St. Louis, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from San Francisco to St. Louis are Southwest and Delta. With an average price for the route of $566 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 $412 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from San Francisco to St. Louis?

    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 Francisco to St. Louis.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to St. Louis?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from San Francisco 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 Francisco to St. Louis?

    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 St. Louis with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and STL 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 Francisco to St. Louis?

    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 St. Louis from San Francisco 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 Francisco to St. Louis

  • Looking for a cheap flight? 25% of our users found flights on this route for $251 or less one-way and $486 or less round-trip.
  • You may enter lounges at San Francisco International Airport (SFO) if you have just landed there and want to take some time to unwind. If you want to make the most of your departure or stopover at SFO, visit the American Express Centurion Lounge, which is an airport lounge that serves some of the finest cuisine, wine, and other beverages available. You are going to really like everything, including the free Wi-Fi, the local cuisine, the wine tasting, and the assortment of cocktails.
  • Moms who are traveling via SFO have access to 19 breastfeeding facilities, including 13 nursing rooms that are elegant, large, and private. At the airport, there are private rooms available for women who are breastfeeding or pumping their milk. Before and after passing through security, passengers are welcome to utilize the nursing rooms located in Terminals 1, 2, and 3 located around the airport.
  • There are a few designated areas in each terminal at San Francisco International Airport where pets may relieve themselves. Customers may utilize the services at either Terminal 1 or Terminal 3 after they have cleared security. Pre-security screenings are performed outside the terminal on the Arrivals Level curbside; simply follow the painted paw-prints. That is to say, these inspections take place away from the terminal building.
  • There is often activity even throughout the night at the St. Louis airport (STL) since it serves a large number of domestic as well as some foreign destinations with its airline operations. Layover travelers are required to stay in the public area until the security checkpoint shuts for the night, despite the fact that the terminals are open around the clock.
  • Helpful services are available at both STL and SFO to accommodate travelers who may need guidance while moving around the airport or using any of its numerous amenities. If you have any concerns regarding their wheelchair rental services or airport transportation alternatives, you may reach out to them before, during, or after your trip. Notify the airline in advance if you want to use these services.

Prefer to fly direct from San Francisco to St. Louis?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from San Francisco to Lambert-St Louis.
Find which airlines fly direct from San Francisco Airport to Lambert-St Louis Airport, which days they fly and book direct flights.

Direct departures

San Francisco to Lambert-St Louis

Monday

Southwest,United Airlines

Southwest,United Airlines

Tuesday

Southwest,United Airlines

Southwest,United Airlines

Wednesday

Southwest,United Airlines

Southwest,United Airlines

Thursday

Southwest,United Airlines

Southwest,United Airlines

Friday

Southwest,United Airlines

Southwest,United Airlines

Saturday

Southwest,United Airlines

Southwest,United Airlines

Sunday

Southwest,United Airlines

Southwest,United Airlines

See more direct flights

Direct returns

Lambert-St Louis to San Francisco

Monday

Southwest,United Airlines

Southwest,United Airlines

Tuesday

Southwest,United Airlines

Southwest,United Airlines

Wednesday

Southwest,United Airlines

Southwest,United Airlines

Thursday

Southwest,United Airlines

Southwest,United Airlines

Friday

Southwest,United Airlines

Southwest,United Airlines

Saturday

Southwest,United Airlines

Southwest,United Airlines

Sunday

Southwest,United Airlines

Southwest,United Airlines

See more direct flights

Reviews of the top 5 airlines serving from San Francisco to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to St. Louis. 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 Francisco to St. Louis? 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 4246 reviews
8.6Crew
8.1Boarding
7.5Entertainment
7.0Food
8.0Comfort
Airline reviews

I have roller bag with food and medication told me I couldn't bring on my 2nd flight today. 15 years flying with SW never an issue with that bag.

2.0 MediocreStuart, Mar 2026
HOU - STL
Read more Southwest reviews

I have roller bag with food and medication told me I couldn't bring on my 2nd flight today. 15 years flying with SW never an issue with that bag.

I have not flown Southwest in awhile and had a very pleasant experience. From ticketing to boarding to the flight. The flight left on time and landed ahead of schedule. It won't be so long next time!!

Everything went smoothly and we even arrived a little bit early.

Boarded on time but once we were ready for take off, the crew determined that, although every seat was taken, somehow someone was on the wrong flight. Delay, delay delay, announcements and ended up with one person checking EVERY ID against their passenger Manifest only to figure out it was a "clerical error." We departed 54 minutes late causing me to run in the St. Louis Airport to make my connection and lose the priority boarding spot I had paid for. Unnecessary delay.

Southwest's seats are the least comfortable I have ever sat in.

For my birthday trip this was my second time ever flying, this trip was the best.

Crew was great flight was great baggage claim was a failure. It took over 1 hour for bags to arrive. Poor communication poor effort when I spoke to the supervisor about the delay

Everything was great except the food. The pretzels are really crappy.

Two hour delay including one of them on the tarmac second year in a row we’ve had a bad experience. Sad that Southwest is no longer a bargain and has failed to keep up the customer service they were once so famous for.

They should not let people take up more than their seat space. Need to buy another ticket if they overflow into someone else’s space. Or you should make your seats larger to accommodate larger folks.

Flight delayed four separate times. I’m now one hour hours late to landing.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

Awesome! On time flight, early arrival, and a complimentary upgrade!

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

The boarding process needs to be refined. Sometimes the gate crew calls out the zones and then flip to showing the.zones boarding on the gate monitor display. So, unless you are huddled around the gate lanes watching the monitor, you could miss your boarding zone. Suggest the zones be announced each time a new zone is allowed to board.

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

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

As we lined up to board they gave our plane to a flight going to Newark. So then we got delayed until they could find another plane. Flight crew was ok. I’m assuming since it’s a shorter flight they only offered water and coffee.

Lost one piece of luggage even though I checked in 2.5 hours before the flight

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

My service dog and I were asked to deplane just before they closed the door - clearly very last minute they couldn’t find the documentation that I have filled out many many times before that is for flying service animals. I purposely purchase 3seats (a whole row) since he is large and not all passengers want to sit next to a dog on a cross country flight. The plane departed with my husband on it!!! They made me fill out a hard copy of the same form and had to reschedule me on a later flight where they could find 3 seats together!! I’ve done this so many times before - clearly the error was on their part in a technology glitch - but really people - do better!! Very traumatic - and my husband had to wait for us when he landed ….so bad. Poor pup was confused and tired.

No screens or meal options. Freezing cold. Dirty seats. Left late.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

It was a red-eye, but the flight felt surprisingly quick. The seats were very comfortable, and that made resting much easier. I also want to thank the gentleman seated next to me, who graciously moved so my mom could sit beside me. We slept almost the entire way. The cabin crew was respectful in not disturbing us, while also being courteous and professional throughout. Thank you, United.

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

Airport terminal was outdated, flight was on a small jet with no wifi

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

We called Kayak for a change due to the TSA situation in Atlanta. What we got was a canceled return flight (in error) and we had to find the mistake. Not happy with Kayak who blamed it on AA.

Small plane, poor meal choices for first class, bad terminal and boarding experience at LAX

Boarding delayed 20 minutes for no reason, no wifi, in flight entertainment, or snacks / waters?

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Improvements in communication and empathy are absolutely necessary for American Airlines staff (top down). It’s like they are numb to the needs of their customers.

I like the speed of boarding and deplaning and the fact that everything was on time. The crew (attendants) were probably quite new and did not begin the in cabin service until 30 min before landing even though there was little to no air turbulence for the last 1.5 hours of the flight. It made for a mad scramble at the end to get trash collected and carts stowed before touch down.

The flights was delayed by hours and it was the firmest landing I have experienced in my life. My back is still sore.

I did like the employee's, they are very friendly and all smiled most of the time, Overall, from checking in bags to getting on plane, not enough employees to be able to get all on the plane, therefore I was not able to get on the plane, due to no one wea there for me to check in my bag, so I decided to go thru the security point and by the time they were done with my bags, I was told that my bag cannot be checked in, and then found out that the lady that does the check in was boarding the customers onto the plane, she said that she was going back and fourth, there for was not able to get on the plane, which changed all my flights by the time I got to Dallas, I was on standby 3 times, and wasn't sure about being able to get on the fourth plane, so ended up buying another plane ticket, so I could make my destination on time.

Not sure about entertainment as I didn't use any, so maybe there should be an NA option on this survey. Otherwise everything was just as it should be. Of course I wish planes were more comfortable and had seats that would tilt back further.

American Airlines “Randy” questioned why I needed preboarding and denied my request for same. Then Randy attempted to berate me when I boarded with my group. I was seated in an exit roll with a young man with a disability that exhibited difficulty controlling and settling himself. But Tandy questioned my disability. The flight was horrible. It was overpacked.

They didn’t offer a water, even after I asked

Frontier had yet another flight cancellation. Have never made a complete round trip with this airline without at least one leg getting cancelled. Miserable flights - dirty, uncomfortable planes that apparently always have issues since I've had multiple delays and cancellations with them.

No frills for sure. No gate announcements about flight delay, not even water to drink on the flight.

I loked walking out on the tarmac to board and no first class. I didn't like that they have no snacks or onboard wifi to bide your time.

It was a redeye flight, so every passenger just wanted to sleep, but through the entire flight, the flight crew made announcements over the loudspeaker at maximum volume every few minutes making sleep impossible. For example: it’s 2am, and the crew decides to give an extremely detailed announcement about snacks and beverages for sale. And 3am is the perfect time to wake up everyone with a lengthy announcement about how to get a coffee refill and how to take advantage of new offer from frontier for a credit card.

While booking it was not obvious that I had to pay for carryon. Realized it only during check-in. Overall, meh!

Stop changing gates at sfo. When you are elderly going back for it’s not fun.

After 5 hours of delay, they cancelled the flight. Very disappointed

My flight to LA was cancelled. I waited at the airport for 3 hrs saying it was delayed and then all of a sudden it was cancelled. Frontier only gave me a voucher and refund but could not rebook me. Flights on other airlines were too expensive last minute. I had to drive down to LA and didn’t even take my return flight home since I had to drive. One of the worst airline experiences in my life. It’s crazy how airlines can just upend people’s plans just like that.

The experience was terrible. The flight boarded late, then after leaving the gate the plane had had to return to the gate for fuel. After 2 hours on the plane, the flight was canceled. The reasons given for the cancelation didn't sound truthful. and different reasons were given. My 15 year old daughter was flying alone on this flight. When they all disembarked the plane she kept asking the crew what she was supposed to do. No one even gave her the courtesy of a response. No one. It took another 4.75 hrs to be out of customs and baggage. She was re-booked the following day. That flight departed 2 hours late. After all of that, they offered a measly $100 flight voucher with an expiry date of 3 months! All in all a terrible experience. We won't be using Frontier again in the future.

Everything you need to know for your flight from San Francisco to St. Louis

Information on your arrival and departure airports