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BUF - STL

$84 Find cheap flights from Buffalo 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 Buffalo to St. Louis departing on 6/22. 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
0 bags
vie. 7/12
vie. 7/19

Search 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 Buffalo 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 Buffalo to St. Louis, as well as popular online travel agencies
In the last 7 days travelers have searched 44,148,666 times on KAYAK, and here is why:

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Cheap flight deals from Buffalo to St. Louis (BUF-STL)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Buffalo 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 and deals for you by selecting your travel dates.
Choose your dates
6:46 pm - 2:53 pmBUF-STL
21h 07m1 stop
10:32 pm - 5:46 pmSTL-BUF
18h 14m1 stop
$178Frontier
Find Deal
mié., sep. 4 - mar., sep. 10
5:30 am - 8:45 amBUF-STL
4h 15m1 stop
9:20 am - 5:22 pmSTL-BUF
7h 02m2 stops
$183American Airlines
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mié., sep. 4 - mar., sep. 10
6:28 am - 11:58 amBUF-STL
6h 30m2 stops
9:20 am - 5:22 pmSTL-BUF
7h 02m2 stops
$188American Airlines
Find Deal
mié., sep. 4 - mar., sep. 10
6:00 am - 11:42 amBUF-STL
6h 42m1 stop
6:11 pm - 12:20 amSTL-BUF
5h 09m1 stop
$227Delta
Find Deal
sáb., ago. 24 - vie., ago. 30
6:46 pm - 9:37 amBUF-STL
15h 51m1 stop
6:42 pm - 8:19 pmSTL-BUF
24h 37m1 stop
$237Frontier
Find Deal
vie., oct. 4 - jue., oct. 10
11:55 am - 5:03 pmBUF-STL
6h 08m1 stop
6:01 am - 1:02 pmSTL-BUF
6h 01m1 stop
$242American Airlines
Find Deal
dom., sep. 15 - mié., sep. 18
11:46 am - 8:43 amBUF-STL
21h 57m1 stop
9:32 pm - 9:17 amSTL-BUF
10h 45m1 stop
$244Frontier
Find Deal
dom., jul. 14 - mié., jul. 17
12:21 pm - 4:20 pmBUF-STL
4h 59m1 stop
5:26 pm - 11:55 pmSTL-BUF
5h 29m1 stop
$266Delta
Find Deal
mar., jul. 16 - mar., jul. 23
7:00 am - 10:07 amBUF-STL
4h 07m1 stop
11:09 am - 11:45 pmSTL-BUF
11h 36m2 stops
$357United Airlines
Find Deal
vie., oct. 4 - jue., oct. 10
6:18 am - 12:17 pmBUF-STL
6h 59m2 stops
5:30 pm - 11:56 pmSTL-BUF
5h 26m1 stop
$427United Airlines
Find Deal
mar., jul. 16 - mar., jul. 23

Flights from Buffalo to St. Louis - Travel Insights & Trends

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

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

The average price of all flights from Buffalo to St. Louis clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to St. Louis on a Sunday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from Buffalo to St. Louis. For your return ticket, we recommend flying on a Wednesday and avoiding Tuesdays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Buffalo 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 Buffalo to St. Louis is October, where tickets cost $301 on average. On the other hand, the most expensive months are July and November, where the average cost of tickets is $416 and $413 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Buffalo to St. Louis, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Buffalo to St. Louis, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 39 days before departure.

Which airlines provide the cheapest flights from Buffalo to St. Louis?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Buffalo to St. Louis were found on Frontier ($178) and American Airlines ($183). Frontier proposed the cheapest one-way flight at $84.

Good to know

Low season

January

High season

July

Cheapest flight

$84
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from Buffalo to St. Louis

When to book flights from Buffalo to St. Louis

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

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

    In the last 3 days, the lowest price for a flight from Buffalo to St. Louis was $84 for a one-way ticket and $178 for a round-trip.

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

    No, a passport isn't needed to fly from Buffalo to St. Louis. However, local authorities might ask for an official ID.

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

    Buffalo airport is called Buffalo and the only airport in St. Louis is Lambert-St Louis.

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

    We unfortunately don’t have that data for this specific route.

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

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

  • Which is the best airline for flights from Buffalo to St. Louis, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Buffalo to St. Louis are Delta and United Airlines. With an average price for the route of $355 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $421 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Buffalo 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 Buffalo to St. Louis.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to St. Louis from Buffalo 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 Buffalo 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 Buffalo with another airline. Booking your flights between Buffalo 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 Buffalo 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 Buffalo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 4 airlines serving from Buffalo to St. Louis

 
See real verified KAYAK customer reviews for airlines flying from Buffalo 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 Buffalo 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.
8.0
DeltaOverall score based on 10000 reviews
8.0Entertainment
7.4Food
8.2Boarding
8.6Crew
7.9Comfort
Airline reviews

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

2.0 MediocreNairan, May 2024JFK - FLL
Read more about Delta reviews

Awful. Flight was continuously getting delayed and gates kept changing without any reason. Flight was delayed for more then 3 hours

I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.

Seat back monitors and outlets were dead and not working.

It was a crowded flight. They did the best they could.

Service was good for such a short flight. Small plane but smooth flight.

The flight was delayed but we got to our final destination.

On 2 different flights the wifi was horrible and there was no drink or snack service.

Uncomfortable seats on 14 hour flight. Mediocre food. On time and great crew.

The helpful attitude of the staff, and being a wheelchair passenger everyone was helpful and understanding. The trip was made comfortable by the upgraded seat which was given without my request, that was a great surprise. Thank you Delta.

We just spent $6000 on our first trip since pre COVID and we were stranded on the runway of our departing airport for 2 hours and 15 minutes while our layover was only an hour and a half. We were told by the pilot we were next for de-icing and then got bumped by 3 other planes. Pilot went on to say they only had one guy working the de-icing where they usually have at least 2. In Rochester. In the heart of winter. Someone missed a step and should be fired. I'm not done.

The entertainment wasn’t playing in the app or online.

It is a modern tragedy that any airline expects you to travel for 14 hours in such discomfort and that the only way to add comfort is exorbitant prices. I was in pain by the time we landed. Shameful.

Original plane sidelined. Had to wait an hour for replacement.

Crew was very cooperative and professional. Passenger's first checked in bag should be free.

No real agent onsite helping you for missing luggage there. Not like the other airline next to UA desk, they have staff attending in their desk assisting answer/helping luggage issue, even after midnight.

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

After the morning frenzy of 35 min wait through CLT security at 4;30 AM, it was nice to have a smooth pleasant boarding experience. This 6:30 AM flight was not full. We were able to get seated swiftly and took off promptly. Nice touch they distributed the old fashioned headsets with 8 mm jacks. Snacks were decent and arrival was uneventful.

My window shade didn’t work. So I missed coming into my city. ☹️

Flight was delayed in the gate by 5 hours and ultimately cancelled- rebooking service by United agents was terrible

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

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

WiFi connected but only let you go to the AA website, not even text messaging worked.

The flight was excellent, provided that we had inclement weather. We departed earlier than scheduled and arrived early. There was a little turbulence, but nothing to be worried about.

pleased with overall experienced, but seats in coach are tight.

Flight delayed, boarding time kept changing, not good. Nee firm information given each time.

Don't often sit in 1st class. Our experience was great.

The 2 hour delay was frustrating but our crew did a great job getting us out quickly and keeping communication especially with the people who had connecting flights

The only problem experienced was a ground stop in Chicago due to weather. But the crew handled everything professionally. They prioritized rebooking those passengers who had connecting flights and then deplaning the other passengers. When the hold was lifted, they efficiently re-boarded all the passengers so that we could depart before our departure limit expired.

It was right on time and crew were very courteous

Their computers were down upon arrival to the airport. They were unable to figure out how to board us. We were delayed over an hour and a half.

Did not realize seats did not recline. Best to travel in an exit row... No question

I strongly dislike Frontier. I find them barebones, the seats not particularly comfortable, the nickel and diming is maddening, the app is TERRIBLE - super confusing to navigate, and the last 4 frontier flights I have flown have been on AVERAGE 2 hours late, one ruining a fancy night out in Vegas with reservations made well in advance, which was nodded to with a measly 5000 miles, which translates to almost nothing. At least credit a free checked bag or something.

8 hr delay. had to buy another ticket with another airline

Four and a half hour delay in total. What frustrates me most is the poor communication and disorganization.

I appreciated the upgrade to free cary-on bag and seat selection at no charge

FRONTIER SUCKS! The agent downstairs tricked me into booking, just to get to the gate. At the gate, they told me they couldn't help. I then called Customer Service. They and the gate attendants kept blaming each other. Neither side was willing to help the customer.

The agent at check-in was strident, unwelcoming, and condescending to customers ahead of me.

Flight was delay 9hrs and nothing was provided at airport, had to go and get a room to sleep in, paid for Uber back and fort with no offers until we landed back home a 1hr later for a $75 voucher for a future flight.

Didn't like anything..entire crew was very rude to everyone on the flight. Plane old and the trays fall down on you the while time you're flying. Charged more for a carry on bag than for the plane ticket itself. Did make it from point a to point b, but worth the extra money to fly with another airline

9 hours of delay!! Was not able to check my luggage that I paid for!!!

Book cheap flights from Buffalo to St. Louis

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Buffalo to St. Louis found on KAYAK in the last 72 hours.
6/22sáb.
1 stopFrontier
16h 43mBUF-STL
$84
6/20jue.
1 stopFrontier
12h 12mBUF-STL
$111
7/4jue.
1 stopDelta
7h 01mBUF-STL
$118
7/17mié.
1 stopAmerican Airlines
7h 42mBUF-STL
$133
8/11dom.
1 stopDelta
3h 59mBUF-STL
$153
7/17mié.
2 stopsUnited Airlines
9h 18mBUF-STL
$173
7/4jue.
2 stopsAmerican Airlines
8h 35mBUF-STL
$178
7/4jue.
3 stops
29h 56mBUF-STL
$204
6/20jue.
2 stops
27h 35mBUF-STL
$214
6/20jue.
3 stops
27h 35mBUF-STL
$248

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Last minute flights from Buffalo to St. Louis

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Buffalo to St. Louis that are departing in the next 10 days.
6/17lun.
multi-stopFrontier
21h 55mBUF-STL
6/21vie.
multi-stopFrontier
27h 16mSTL-BUF
$232
6/17lun.
multi-stopFrontier
21h 55mBUF-STL
6/21vie.
multi-stopFrontier
27h 16mSTL-BUF
$252
6/14vie.
multi-stopFrontier
16h 14mBUF-STL
6/17lun.
multi-stopFrontier
9h 00mSTL-BUF
$326
6/13jue.
multi-stopFrontier
12h 12mBUF-STL
6/17lun.
multi-stopFrontier
9h 00mSTL-BUF
$360
6/13jue.
multi-stopAmerican Airlines
4h 32mBUF-STL
6/18mar.
multi-stopAmerican Airlines
4h 50mSTL-BUF
$601
6/17lun.
multi-stopAmerican Airlines
7h 35mBUF-STL
6/21vie.
multi-stopAmerican Airlines
10h 28mSTL-BUF
$606
6/17lun.
multi-stopAmerican Airlines
11h 16mBUF-STL
6/21vie.
multi-stopAmerican Airlines
10h 28mSTL-BUF
$611
6/17lun.
multi-stopAmerican Airlines
9h 49mBUF-STL
6/21vie.
multi-stopAmerican Airlines
10h 28mSTL-BUF
$622
6/14vie.
multi-stopDelta
6h 54mBUF-STL
6/17lun.
multi-stopDelta
6h 49mSTL-BUF
$1,169

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Buffalo - St. Louis Flights

Departure:

Buffalo (BUF)United States

Destination:

St. Louis (STL)United States

Return flight deals:

St. Louis - Buffalo

Cabin classes: