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Cheap flights from Buffalo to St. Louis from C$ 640

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 18/5. 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
21 May — 28 May1
1 adult
Tue 21/5
Tue 28/5

The best prices from Buffalo to Lambert-St Louis are usually found in October or September, booked 54 days in advance, depart on a Wednesday 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 16 May 2024.

Popular in

November

Cheapest in

October

Average price

C$ 531

Round-trip from

C$ 498
High demand for flights, 9% potential price rise
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Best time to find cheap flights, 20% potential price drop
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Average for round-trip flights in May 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 Friday 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 184% by booking at least 55 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$ 338.

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$ 511 for the month, but tickets can be as low as C$ 279. Due to multiple factors, prepare for potentially higher prices in November.

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

It’s optimal to fly from Buffalo to St. Louis in the afternoon. By choosing this option you can save up to 33% on the cost of your flight, compared to a flight at noon.

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 409,532 searches. Data last updated 16 May 2024.
Wed 12/66:30 a.m.BUF - STL
2 stops7h 56mDelta
Wed 19/66:30 a.m.STL - BUF
2 stops10h 49mDelta
Deal found 15/5C$ 1,587
Mon 15/76:15 a.m.BUF - STL
2 stops9h 23mDelta
Sat 20/712:49 p.m.STL - BUF
2 stops9h 49mDelta
Deal found 16/5C$ 2,083
Mon 24/66:15 a.m.BUF - STL
2 stops9h 18mDelta
Fri 28/62:16 p.m.STL - BUF
2 stops7h 46mDelta
Deal found 15/5C$ 2,174
Fri 14/66:15 a.m.BUF - STL
2 stops9h 18mDelta
Fri 21/62:16 p.m.STL - BUF
2 stops7h 46mDelta
Deal found 15/5C$ 2,353

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

Find cheap flight options from Buffalo to St. Louis specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 409,532 searches. Prices were last updated on 16 May 2024.
Sat 18/56:12 p.m.BUF - STL
1 stop4h 22mDelta
Tue 21/56:00 a.m.STL - BUF
1 stop7h 28mDelta
Deal found 14/5C$ 640
Wed 12/66:30 a.m.BUF - STL
2 stops7h 56mDelta
Wed 19/66:30 a.m.STL - BUF
2 stops10h 49mDelta
Deal found 15/5C$ 1,587
Mon 24/66:15 a.m.BUF - STL
2 stops9h 18mDelta
Fri 28/62:16 p.m.STL - BUF
2 stops7h 46mDelta
Deal found 15/5C$ 2,174
Mon 20/52:11 p.m.BUF - STL
2 stops10h 29mDelta
Tue 21/512:00 p.m.STL - BUF
2 stops10h 17mDelta
Deal found 15/5C$ 2,323
Fri 14/66:15 a.m.BUF - STL
2 stops9h 18mDelta
Fri 21/62:16 p.m.STL - BUF
2 stops7h 46mDelta
Deal found 15/5C$ 2,353

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 409,532 searches. Data last updated 16 May 2024.
Sat 18/56:12 p.m.BUF - STL
1 stop4h 22mDelta
Tue 21/56:00 a.m.STL - BUF
1 stop7h 28mDelta
Deal found 14/5C$ 640
Wed 12/66:30 a.m.BUF - STL
2 stops7h 56mDelta
Wed 19/66:30 a.m.STL - BUF
2 stops10h 49mDelta
Deal found 15/5C$ 1,587
Mon 15/76:15 a.m.BUF - STL
2 stops9h 23mDelta
Sat 20/712:49 p.m.STL - BUF
2 stops9h 49mDelta
Deal found 16/5C$ 2,083
Mon 24/66:15 a.m.BUF - STL
2 stops9h 18mDelta
Fri 28/62:16 p.m.STL - BUF
2 stops7h 46mDelta
Deal found 15/5C$ 2,174
Mon 20/52:11 p.m.BUF - STL
2 stops10h 29mDelta
Tue 21/512:00 p.m.STL - BUF
2 stops10h 17mDelta
Deal found 15/5C$ 2,323
Fri 14/66:15 a.m.BUF - STL
2 stops9h 18mDelta
Fri 21/62:16 p.m.STL - BUF
2 stops7h 46mDelta
Deal found 15/5C$ 2,353

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 409,532 searches. Data last updated 16 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

C$ 1,587 - C$ 2,353

Route

Depart

Return

Price

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

Wed 12/6

2 stops7h 56m

Lambert-St Louis

Wed 19/6

2 stops10h 49m

C$ 1,587

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

Mon 15/7

2 stops9h 23m

Lambert-St Louis

Sat 20/7

2 stops9h 49m

C$ 2,083

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

Mon 24/6

2 stops9h 18m

Lambert-St Louis

Fri 28/6

2 stops7h 46m

C$ 2,174

BuffaloLambert-St Louis

BUF - STL

BUFSTL

Buffalo

Fri 14/6

2 stops9h 18m

Lambert-St Louis

Fri 21/6

2 stops7h 46m

C$ 2,353

Flights are sorted by cheapest first

Deals found on 15/5

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 10 May 2024.
The best time to book flights from Buffalo to St. Louis is 54 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.
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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 12 May 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. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
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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$ 2,049. Price data was last updated on 12 May 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$ 559). 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$ 497

February

C$ 546

March

C$ 609

April

C$ 548

May

C$ 575

June

C$ 715

July

C$ 762

August

C$ 639

September

C$ 617

October

C$ 653

November

C$ 549

December

C$ 518

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 16 May 2024.
Delta
8.0
Very good
10,673 reviews
Check prices

Boarding

8.2

Food

7.4

Crew

8.6

Comfort

7.9

Entertainment

8.0

Overall

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
8.0
Very good
10,673 reviews
Delta
8.0
Very good
10,673 reviews
Check prices

Boarding

8.2

Food

7.4

Crew

8.6

Comfort

7.9

Entertainment

8.0

Overall

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$ 1,600 on Cheapflights?

    Yes, there are multiple flights from Buffalo to St. Louis for under C$ 1,600. The cheapest flight booked recently is on Delta for just C$ 1,587, but on average you can expect to pay C$ 2,049.

  • What is the cheapest airline to fly from Buffalo to St. Louis round-trip?

    Currently priced at C$ 1,587, 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.

  • 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 16/5.

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.

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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 409,532 searches. Data last updated 16 May 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapestC$ 191AverageC$ 417FlexibilityNo cancel feeOn-time62%
Search Frontier flights
United AirlinesCheapestC$ 459AverageC$ 687FlexibilityNo cancel feeOn-time69%
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Endeavor AirlinesCheapestC$ 563AverageC$ 712FlexibilityNo 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

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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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