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Cheap flights from Buffalo to St. Louis from C$ 405

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/7. 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.
BUF — STL
4 May — 11 May1
1 adult
Sat 4/5
Sat 11/5

The best prices from Buffalo to Lambert-St Louis are usually found in October or January, booked 39 days in advance, depart on a Tuesday or Thursday and return on a Monday

Cheap flight deals from Buffalo to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 April 2024.

Popular in

March

Cheapest in

October

Average price

C$ 528

Round-trip from

C$ 499
High demand for flights, 17% potential price rise
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Best time to find cheap flights, 21% potential price drop
Search Deals
Average for round-trip flights in April 2024
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From Buffalo to Lambert-St Louis
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What is the cheapest day to fly round-trip from Buffalo to St. Louis?

Users have found that flying from Buffalo to St. Louis on a Wednesday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

Find a great deal and save up to 238% by booking at least 40 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Buffalo to St. Louis within the next two weeks, with the cheapest ticket starting at C$ 316.

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

Our data shows that October tends to be the cheapest month to fly to St. Louis from Buffalo. Users have commonly found prices around C$ 519 for the month, but tickets can be as low as C$ 280. Due to multiple factors, prepare for potentially higher prices in March.

When is the cheapest time to fly from Buffalo to St. Louis (BUF - STL)?

It’s optimal to fly from Buffalo to St. Louis at noon. By choosing this option you can save up to 39% on the cost of your flight, compared to a flight in the afternoon.

Cheap United Airlines flights from Buffalo to St. Louis

Explore cheap flight options specifically provided by United Airlines for the route between Buffalo and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 490,828 searches. Data last updated 29 April 2024.
Check out some of the cheapest United Airlines flights we've come across from Buffalo to St. Louis. It's recommended that users confirm their flight details before booking.
Thu 26/97:00 a.m.BUF - STL
1 stop4h 07mUnited Airlines
Sat 28/911:09 a.m.STL - BUF
2 stops10h 49mUnited Airlines
Deal found 28/4C$ 655
Tue 17/96:00 p.m.BUF - STL
1 stop17h 07mUnited Airlines
Fri 20/95:20 p.m.STL - BUF
2 stops15h 17mUnited Airlines
Deal found 28/4C$ 704
Mon 6/57:00 a.m.BUF - STL
1 stop4h 14mUnited Airlines
Wed 8/511:10 a.m.STL - BUF
2 stops11h 13mUnited Airlines
Deal found 28/4C$ 718
Mon 6/52:30 p.m.BUF - STL
2 stops8h 25mUnited Airlines
Wed 8/511:10 a.m.STL - BUF
2 stops11h 13mUnited Airlines
Deal found 28/4C$ 1,029

Cheap Delta flights from Buffalo to St. Louis

Explore cheap flight options specifically provided by Delta for the route between Buffalo and St. Louis. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 490,828 searches. Data last updated 29 April 2024.
Have a look at some of the cheapest available Delta flights departing from Buffalo and landing in St. Louis. Check back soon if you're not seeing flights that suit your needs.
Thu 18/76:10 a.m.BUF - STL
1 stop4h 13mDelta
Mon 22/76:10 p.m.STL - BUF
1 stop4h 49mDelta
Deal found 28/4C$ 405
Fri 7/66:15 a.m.BUF - STL
2 stops9h 18mDelta
Sun 9/66:30 a.m.STL - BUF
1 stop3h 54mDelta
Deal found 28/4C$ 1,046
Thu 11/76:44 p.m.BUF - STL
1 stop6h 00mDelta
Sat 13/710:55 a.m.STL - BUF
2 stops8h 13mDelta
Deal found 28/4C$ 1,871
Thu 27/62:45 p.m.BUF - STL
2 stops6h 52mDelta
Sat 29/610:05 a.m.STL - BUF
1 stop7h 20mDelta
Deal found 27/4C$ 2,015
Fri 7/66:15 a.m.BUF - STL
2 stops9h 18mDelta
Sun 9/63:23 p.m.STL - BUF
2 stops7h 40mDelta
Deal found 28/4C$ 2,170
Thu 27/62:45 p.m.BUF - STL
2 stops6h 52mDelta
Sat 29/66:30 a.m.STL - BUF
2 stops7h 00mDelta
Deal found 27/4C$ 3,262

Cheap Buffalo to St. Louis flights in April & May 2024

Find cheap flight options from Buffalo to St. Louis specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 490,828 searches. Prices were last updated on 29 April 2024.
Scroll through some of the best deals on flights from Buffalo to St. Louis in 2024. Check back soon for alternative fares.
Tue 30/46:25 a.m.BUF - STL
1 stop3h 55mDelta
Mon 6/53:40 p.m.STL - BUF
1 stop6h 42mDelta
Deal found 28/4C$ 596
Thu 2/56:00 a.m.BUF - STL
1 stop6h 56mDelta
Mon 6/57:03 p.m.STL - BUF
1 stop4h 20mDelta
Deal found 28/4C$ 663
Tue 30/46:10 a.m.BUF - STL
1 stop7h 07mDelta
Thu 2/51:01 p.m.STL - BUF
1 stop4h 16mDelta
Deal found 28/4C$ 667
Tue 30/46:12 p.m.BUF - STL
1 stop4h 11mDelta
Sun 5/56:30 a.m.STL - BUF
1 stop6h 00mDelta
Deal found 28/4C$ 713
Mon 6/57:00 a.m.BUF - STL
1 stop4h 14mUnited Airlines
Wed 8/511:10 a.m.STL - BUF
2 stops11h 13mUnited Airlines
Deal found 28/4C$ 718
Thu 2/56:10 a.m.BUF - STL
1 stop5h 09mDelta
Thu 2/53:40 p.m.STL - BUF
1 stop6h 24mDelta
Deal found 28/4C$ 768
Mon 6/52:30 p.m.BUF - STL
2 stops8h 25mUnited Airlines
Wed 8/511:10 a.m.STL - BUF
2 stops11h 13mUnited Airlines
Deal found 28/4C$ 1,029
Tue 30/410:56 a.m.BUF - STL
2 stops11h 27mDelta
Sat 4/56:30 a.m.STL - BUF
2 stops11h 40mDelta
Deal found 28/4C$ 1,640
Mon 29/46:10 a.m.BUF - STL
2 stops8h 01mDelta
Fri 3/56:13 a.m.STL - BUF
2 stops6h 17mDelta
Deal found 28/4C$ 1,662

Buffalo to St. Louis 2024 flight deals

Discover exclusive flight deals for travel between Buffalo and St. Louis in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 490,828 searches. Data last updated 29 April 2024.
Scroll through some of the best deals on flights from Buffalo to St. Louis in 2024. Check back soon for alternative fares.
Thu 18/76:10 a.m.BUF - STL
1 stop4h 13mDelta
Mon 22/76:10 p.m.STL - BUF
1 stop4h 49mDelta
Deal found 28/4C$ 405
Tue 30/46:25 a.m.BUF - STL
1 stop3h 55mDelta
Mon 6/53:40 p.m.STL - BUF
1 stop6h 42mDelta
Deal found 28/4C$ 596
Thu 26/97:00 a.m.BUF - STL
1 stop4h 07mUnited Airlines
Sat 28/911:09 a.m.STL - BUF
2 stops10h 49mUnited Airlines
Deal found 28/4C$ 655
Thu 2/56:00 a.m.BUF - STL
1 stop6h 56mDelta
Mon 6/57:03 p.m.STL - BUF
1 stop4h 20mDelta
Deal found 28/4C$ 663
Tue 30/46:10 a.m.BUF - STL
1 stop7h 07mDelta
Thu 2/51:01 p.m.STL - BUF
1 stop4h 16mDelta
Deal found 28/4C$ 667
Tue 17/96:00 p.m.BUF - STL
1 stop17h 07mUnited Airlines
Fri 20/95:20 p.m.STL - BUF
2 stops15h 17mUnited Airlines
Deal found 28/4C$ 704
Tue 30/46:12 p.m.BUF - STL
1 stop4h 11mDelta
Sun 5/56:30 a.m.STL - BUF
1 stop6h 00mDelta
Deal found 28/4C$ 713
Mon 6/57:00 a.m.BUF - STL
1 stop4h 14mUnited Airlines
Wed 8/511:10 a.m.STL - BUF
2 stops11h 13mUnited Airlines
Deal found 28/4C$ 718
Thu 2/56:10 a.m.BUF - STL
1 stop5h 09mDelta
Thu 2/53:40 p.m.STL - BUF
1 stop6h 24mDelta
Deal found 28/4C$ 768

Buffalo to St. Louis flights leaving soon

Find last-minute flight options from Buffalo to St. Louis for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 490,828 searches. Data last updated 29 April 2024.
Check out these flights departing soon from Buffalo to St. Louis. Users should examine the flight details to ensure there are no surprises.
Mon 6/57:00 a.m.BUF - STL
1 stop4h 14mUnited Airlines
Wed 8/511:10 a.m.STL - BUF
2 stops11h 13mUnited Airlines
Deal found 28/4C$ 718
Mon 6/52:30 p.m.BUF - STL
2 stops8h 25mUnited Airlines
Wed 8/511:10 a.m.STL - BUF
2 stops11h 13mUnited Airlines
Deal found 28/4C$ 1,029
Wed 8/56:30 a.m.BUF - STL
2 stops7h 38mDelta
Sun 12/56:11 a.m.STL - BUF
2 stops6h 20mDelta
Deal found 28/4C$ 1,871

Find flights from Buffalo to St. Louis within your budget

Customize your flight search to find flights from Buffalo to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 490,828 searches. Data last updated 29 April 2024.

Fly from

Any airport

Fly to

Any airport

Budget

C$ 405 - C$ 3,262

Route

Depart

Return

Price

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

Thu 18/7

1 stop4h 13m

Lambert-St Louis

Mon 22/7

1 stop4h 49m

C$ 405

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

Thu 26/9

1 stop4h 07m

Lambert-St Louis

Sat 28/9

2 stops10h 49m

C$ 655

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

Tue 17/9

1 stop17h 07m

Lambert-St Louis

Fri 20/9

2 stops15h 17m

C$ 704

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

Fri 7/6

2 stops9h 18m

Lambert-St Louis

Sun 9/6

1 stop3h 54m

C$ 1,046

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

Thu 11/7

1 stop6h 00m

Lambert-St Louis

Sat 13/7

2 stops8h 13m

C$ 1,871

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

Thu 27/6

2 stops6h 52m

Lambert-St Louis

Sat 29/6

1 stop7h 20m

C$ 2,015

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

Fri 7/6

2 stops9h 18m

Lambert-St Louis

Sun 9/6

2 stops7h 40m

C$ 2,170

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

Thu 27/6

2 stops6h 52m

Lambert-St Louis

Sat 29/6

2 stops7h 00m

C$ 3,262

Flights are sorted by cheapest first

Deals found on 28/4

When is the best time to book a flight from Buffalo to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to St. Louis. Price data was last updated on 28 January 2024.
The best time to book flights from Buffalo to St. Louis is 39 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

When is the cheapest time to fly from Buffalo to St. Louis?

Use this chart to determine the cheapest time to fly round-trip from Buffalo to St. Louis. Price data was last updated on 21 April 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Buffalo to St. Louis flight should consider departing on Friday afternoons when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to St. Louis by month

Plan your trip from Buffalo to St. Louis by taking into account the cheapest months to travel. The average price of a one-way flight from Buffalo to St. Louis is currently C$ 0 while a round-trip flight costs C$ 1,516. Price data was last updated on 28 April 2024.

Currently, January is the cheapest month in which you can book a flight from Buffalo to St. Louis (average of C$ 365). Flying from Buffalo to St. Louis in July is currently the most expensive (average of C$ 554). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

C$ 499

February

C$ 548

March

C$ 611

April

C$ 567

May

C$ 588

June

C$ 648

July

C$ 757

August

C$ 618

September

C$ 619

October

C$ 655

November

C$ 551

December

C$ 519

Temperature and rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature and rainfall totals by month.

STL

Temperature

0 - 27 °C

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated 29 April 2024.
To help decide which airline to fly from Buffalo to St. Louis, see what other customers have to say about United Airlines and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,932 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

8.1

Comfort

7.9

Food

7.4

Entertainment

8.0

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

Delta
8.1
Very good
10,932 reviews
Delta
8.1
Very good
10,932 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

8.1

Comfort

7.9

Food

7.4

Entertainment

8.0

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

United Airlines
7.4
Good
11,221 reviews
Delta
8.1
Very good
10,932 reviews
Check prices

Crew

8.6

Boarding

8.2

Overall

8.1

Comfort

7.9

Food

7.4

Entertainment

8.0

Reviews

1 / 10

In the boarding area at La Guardia, there are charging stations for electronics but the electric outlets do not work on many of the stations.

Related info for your journey

Find useful and relevant information for your journey from Buffalo to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Buffalo to St. Louis for under C$ 500 on Cheapflights?

    Yes, there are multiple flights from Buffalo to St. Louis for under C$ 500. The cheapest flight booked recently is on Delta for just C$ 405, but on average you can expect to pay C$ 1,516.

  • Are there last-minute flights available from Buffalo to St. Louis for under C$ 800?

    There are currently 3+ open flights from Buffalo to St. Louis within the next 7 days for less than C$ 800.

  • What are the cheapest airlines flying from Buffalo to St. Louis round-trip?

    Currently priced at C$ 405, Delta will fly you from Buffalo to St. Louis and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as C$ 655. You may be able to fly from Buffalo to St. Louis for 22% less than the average price by searching for these airlines.

  • What are the most popular airlines that fly from Buffalo to St. Louis?

    Endeavor Airlines, Frontier and United Airlines are the most popular airlines when flying from Buffalo to St. Louis.

  • What does BUF to STL mean?

    BUF and STL are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. BUF to STL refers to a flight route from Buffalo Airport to Lambert-St Louis Airport.

  • Can I find deals for flights from Buffalo to St. Louis that include extra baggage allowance?

    The amount of baggage you can bring on your Buffalo to St. Louis flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Buffalo to St. Louis with specific airlines?

    Yes, Cheapflights allows you to browse and filter Buffalo to St. Louis flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Buffalo to St. Louis that include hotel bookings?

    Yes. In addition to deals on Buffalo to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buffalo to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Buffalo to St. Louis.

  • Can I find deals for business class flights from Buffalo to St. Louis?

    Yes. Cheapflights offers flight deals from Buffalo to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Buffalo to St. Louis that allow pets onboard?

    Many airlines flying from Buffalo to St. Louis offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Buffalo to St. Louis?

    Yes, you can often find last-minute deals on Buffalo to St. Louis flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Buffalo to St. Louis flight deals updated?

    The Buffalo to St. Louis flight deals you see on this page were last updated on 28/4.

See more FAQs

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Alternative routes for Buffalo to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.

Buffalo to Kansas City flights

Top 3 airlines flying from Buffalo to St. Louis

Discover the top 3 airlines that operate flights from Buffalo to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 490,828 searches. Data last updated 29 April 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 192AverageC$ 419FlexibilityNo cancel feeOn-time62%
Search Frontier flights
United AirlinesCheapestC$ 444AverageC$ 669FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Endeavor AirlinesCheapestC$ 565AverageC$ 714FlexibilityNo cancel feeOn-timeN/A
Search Endeavor Airlines flights
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Search flights from Buffalo to St. Louis by cabin class

Find flights from Buffalo to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Buffalo to St. Louis?

Cheapflights makes it easy to find Buffalo to St. Louis flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Buffalo to St. Louis?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Buffalo to St. Louis.

Can Cheapflights find flights from Buffalo to St. Louis with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Buffalo to St. Louis, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Buffalo to St. Louis become cheaper?

Yes! Start tracking prices for Buffalo to St. Louis flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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