How long is the flight from Buffalo to St. Louis?

For as low as C$ 414, United Airlines can have you in St. Louis from Buffalo in 5h 02m. The distance between Buffalo and St. Louis is about 1081 km. This flight may include one or multiple stops.

In terms of precipitation, rainfall in St. Louis ranges from 56.0 - 119.0 mm per month. May is typically the wettest month, when rainfall can reach 119.0 mm. February is typically the driest time to visit St. Louis when rainfall is around 56.0 mm.

If weather is an important factor for your trip to St. Louis, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

What is the cheapest time of day to fly from BUF to STL?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Buffalo to St. Louis as you normally would.

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.

C$ 217+ Cheap Flights from Buffalo to St. Louis

Cheap flight deals from Buffalo to St. Louis

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Buffalo to St. Louis
Explore the most affordable flight options available from Buffalo to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 September 2026.

Thu 12/116:00 a.m. -

2 stops7h 10m

Mon 23/115:00 p.m. -

1 stop4h 59m

Deal found 16/9C$ 364

Wed 11/115:58 p.m. -

1 stop4h 42m

Mon 23/111:08 p.m. -

1 stop6h 28m

Deal found 17/9C$ 407

Thu 29/106:00 a.m. -

2 stops6h 35m

Sat 31/106:10 a.m. -

1 stop3h 40m

Deal found 17/9C$ 443

Wed 11/113:55 p.m. -

2 stops7h 05m

Mon 23/114:45 p.m. -

2 stops6h 05m

Deal found 17/9C$ 466

Fri 16/101:44 p.m. -

2 stops10h 29m

Fri 23/106:35 p.m. -

1 stop17h 24m

Deal found 18/9C$ 470

Fri 16/105:50 p.m. -

1 stop7h 29m

Fri 23/105:40 p.m. -

1 stop4h 52m

Deal found 18/9C$ 487

Sun 13/127:20 a.m. -

1 stop3h 45m

Wed 16/1211:55 a.m. -

2 stops9h 00m

Deal found 19/9C$ 495

Fri 16/109:40 a.m. -

2 stops10h 25m

Fri 23/104:30 p.m. -

2 stops6h 15m

Deal found 18/9C$ 527

Fri 9/1010:46 a.m. -

1 stop4h 31m

Tue 13/103:11 p.m. -

1 stop4h 36m

Deal found 19/9C$ 563

Find flight deals from Buffalo to St. Louis

Round-trip from	C$ 364
One-way from	C$ 217
Popular in	March
Cheapest in	January
Average price	C$ 505

United Airlines
12/11-23/11
3 total stops
12h 09m total
Buffalo to St. Louis

Search Deals

Southwest
20/10-31/12
1 total stop
4h 50m total
Buffalo to St. Louis

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (C$ 155 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease (C$ 44 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BuffaloSt. Louis

BUF Buffalo - STL Lambert-St Louis

BUFSTL

Buffalo

Tue 20/10

6:40 p.m.-10:30 p.m.

1 stop4h 50m

Lambert-St Louis

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 217

BuffaloSt. Louis

BUF Buffalo - STL Lambert-St Louis

BUFSTL

Buffalo

Sun 17/1

3:45 p.m.-7:20 p.m.

1 stop4h 35m

Lambert-St Louis

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 278

Quickest round-trip

BuffaloSt. Louis

BUF Buffalo - STL Lambert-St Louis

BUFSTL

Buffalo

Sun 18/10

5:50 a.m.-9:20 a.m.

1 stop4h 30m

Lambert-St Louis

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 278

BuffaloSt. Louis

BUF Buffalo - STL Lambert-St Louis

BUFSTL

Buffalo

Mon 12/10

6:00 a.m.-12:15 p.m.

2 stops7h 15m

Lambert-St Louis

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 299

BuffaloSt. Louis

BUF Buffalo - STL Lambert-St Louis

BUFSTL

Buffalo

Sun 11/10

5:50 a.m.-11:35 a.m.

2 stops6h 45m

Lambert-St Louis

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 299

BuffaloSt. Louis

BUF Buffalo - STL Lambert-St Louis

BUFSTL

Buffalo

Fri 9/10

6:00 a.m.-12:15 p.m.

2 stops7h 15m

Lambert-St Louis

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 323

BuffaloSt. Louis

BUF Buffalo - STL Lambert-St Louis

BUFSTL

Buffalo

Fri 9/10

10:46 a.m.-2:17 p.m.

1 stop4h 31m

Lambert-St Louis

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 348

BuffaloSt. Louis

BUF Buffalo - STL Lambert-St Louis

BUFSTL

Buffalo

Sun 11/10

6:00 a.m.-12:15 p.m.

2 stops7h 15m

Lambert-St Louis

Wed 31/12

12:00 a.m.-1:00 a.m.

Nonstop0h 00m

C$ 403

BuffaloSt. Louis

BUF Buffalo - STL Lambert-St Louis

BUFSTL

Buffalo

Wed 11/11

6:30 a.m.-10:32 a.m.

1 stop5h 02m

Lambert-St Louis

Mon 23/11

6:00 a.m.-2:20 p.m.

2 stops7h 20m

C$ 414

BuffaloSt. Louis

BUF Buffalo - STL Lambert-St Louis

BUFSTL

Buffalo

Thu 29/10

6:00 a.m.-11:35 a.m.

2 stops6h 35m

Lambert-St Louis

Sat 31/10

6:10 a.m.-10:50 a.m.

1 stop3h 40m

C$ 443

Flights are sorted by cheapest round-trip flights first.

Deals found on 19/9

Showing 1-10 of 17 resultsSorted by cheapest first

Best time to book a flight from Buffalo to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Buffalo with our price prediction graph.

BUF-STL

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Buffalo to St. Louis

What is the cheapest month to book a flight from Buffalo to St. Louis?

Currently, January is the cheapest month in which you can book a flight from Buffalo to St. Louis (average of C$ 449). Flying from Buffalo to St. Louis in March is currently the most expensive (average of C$ 945). 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.

How much does it cost to fly round-trip from Buffalo to St. Louis?

Airfare is below average for this route at the moment.

Buffalo to St. Louis flights typically cost between C$ 427 and C$ 667 in November.
The cheapest round-trip price found within the last 5 days was C$ 364 on United Airlines (12 Nov-23 Nov).

Related info for your journey

How long is the flight from Buffalo to St. Louis?
For as low as C$ 414, United Airlines can have you in St. Louis from Buffalo in 5h 02m. The distance between Buffalo and St. Louis is about 1081 km. This flight may include one or multiple stops.
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.
What is the cheapest month to book a flight from Buffalo to St. Louis?
Currently, January is the cheapest month in which you can book a flight from Buffalo to St. Louis (average of C$ 449). Flying from Buffalo to St. Louis in March is currently the most expensive (average of C$ 945). 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.

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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?

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Cheap flights from Buffalo to St. Louis from C$ 217

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 20/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Buffalo to St. Louis

Cheapest flights from Buffalo to St. LouisExplore the most affordable flight options available from Buffalo to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 September 2026.

Explore the most affordable flight options available from Buffalo to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 September 2026.

Best flights from Buffalo to St. LouisDiscover carefully curated flight deals from Buffalo to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 20 September 2026.

Discover carefully curated flight deals from Buffalo to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 20 September 2026.

Last-minute flights from Buffalo to St. LouisDiscover last-minute flight deals from Buffalo to St. Louis. Data last updated 20 September 2026 and is based on user searches.

Discover last-minute flight deals from Buffalo to St. Louis. Data last updated 20 September 2026 and is based on user searches.

One-way flights from Buffalo to St. LouisSearch for one-way flight options from Buffalo to St. Louis. Find affordable one-way fares based on user searches. Data last updated 20 September 2026.

Search for one-way flight options from Buffalo to St. Louis. Find affordable one-way fares based on user searches. Data last updated 20 September 2026.

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Use the filters below to find and compare flights from Buffalo to St. Louis that are best for you.

Best time to book a flight from Buffalo to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Buffalo with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Buffalo to St. Louis?

How much does it cost to fly round-trip from Buffalo to St. Louis?

Airfare is below average for this route at the moment.

Buffalo to St. Louis flights typically cost between C$ 427 and C$ 667 in November.The cheapest round-trip price found within the last 5 days was C$ 364 on United Airlines (12 Nov-23 Nov).

Related info for your journey

How long is the flight from Buffalo to St. Louis?

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

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

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

What is the cheapest month to book a flight from Buffalo to St. Louis?

Travelling to a place near St. Louis?

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Direct flights to Missouri

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Buffalo and St. Louis flights

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

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

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

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Cheapest flights from Buffalo to St. Louis
Explore the most affordable flight options available from Buffalo to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 September 2026.

Best flights from Buffalo to St. Louis
Discover carefully curated flight deals from Buffalo to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 20 September 2026.

Last-minute flights from Buffalo to St. Louis
Discover last-minute flight deals from Buffalo to St. Louis. Data last updated 20 September 2026 and is based on user searches.

One-way flights from Buffalo to St. Louis
Search for one-way flight options from Buffalo to St. Louis. Find affordable one-way fares based on user searches. Data last updated 20 September 2026.

Buffalo to St. Louis flights typically cost between C$ 427 and C$ 667 in November.
The cheapest round-trip price found within the last 5 days was C$ 364 on United Airlines (12 Nov-23 Nov).