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Cheap flights from St. Louis to Buffalo (STL - BUF) from $89

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/28. 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.
STL — BUF
Jun 11 — Jun 181
From?
To?
Tue 6/11
Tue 6/18
1 adult, Economy
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The best prices from Lambert-St Louis to Buffalo are usually found in September or February, booked 63 days in advance, depart on a Wednesday or Friday and return on a Sunday

Cheap flight deals from St. Louis to Buffalo

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Buffalo (BUF). 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 June 6, 2024.

Popular in

April

Cheapest in

September

Round-trip from

$256

One-way from

$123
High demand for flights, 20% potential price rise
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Best time to find cheap flights, 18% potential price drop
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From Lambert-St Louis to Buffalo
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One-way flight from Lambert-St Louis to Buffalo
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What is the cheapest day to fly round-trip from St. Louis to Buffalo?

Flights from St. Louis to Buffalo are found to be more expensive on Monday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Buffalo.

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

Travelers have found it’s best to book a flight 54 days in advance to save up to 64% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 54 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to Buffalo 1-2 weeks in advance for as low as $409, or $409 for flights within the next 24 hours.

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

Due to multiple factors, expect to potentially pay more when booking in April. For low rates, September can be a great choice for travel to Buffalo. Flights to Buffalo from St. Louis in September are about $381 on average during September, but can be found for as low as $169.

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

It’s optimal to fly from St. Louis to Buffalo at noon. By choosing this option you can save up to 27% on the cost of your flight, compared to a flight in the morning.

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

Find cheap flight options from St. Louis to Buffalo specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Prices were last updated on June 6, 2024.
Check out some of the best flight deals from St. Louis to Buffalo in 2024. More deals are always being added, so be sure to check back regularly.
Mon 6/1010:36 pmSTL - BUF
1 stop9h 00mFrontier
Wed 7/106:28 pmBUF - STL
1 stop26h 29mFrontier
Deal found 6/5$224
Mon 7/89:32 pmSTL - BUF
1 stop10h 05mFrontier
Fri 7/128:06 pmBUF - STL
1 stop14h 19mFrontier
Deal found 6/5$226
Mon 7/159:32 pmSTL - BUF
1 stop10h 05mFrontier
Thu 7/1811:30 amBUF - STL
1 stop22h 06mFrontier
Deal found 6/5$249
Wed 7/310:36 pmSTL - BUF
1 stop9h 50mFrontier
Wed 7/106:28 pmBUF - STL
1 stop26h 29mFrontier
Deal found 6/5$255
Sun 6/236:30 amSTL - BUF
1 stop3h 54mDelta
Tue 6/252:45 pmBUF - STL
1 stop7h 09mDelta
Deal found 6/5$261
Wed 7/36:30 amSTL - BUF
1 stop3h 46mDelta
Sat 7/65:49 pmBUF - STL
1 stop4h 28mDelta
Deal found 6/5$291
Fri 7/127:33 pmSTL - BUF
1 stop15h 03mFrontier
Sun 7/1411:46 amBUF - STL
1 stop21h 57mFrontier
Deal found 6/6$292
Thu 7/118:57 pmSTL - BUF
1 stop21h 19mFrontier
Sun 7/1411:46 amBUF - STL
1 stop21h 57mFrontier
Deal found 6/6$293
Wed 6/126:30 amSTL - BUF
1 stop3h 54mDelta
Wed 6/199:01 amBUF - STL
1 stop5h 25mDelta
Deal found 6/5$307

St. Louis to Buffalo 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Buffalo in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
Check out some of the best flight deals from St. Louis to Buffalo in 2024. More deals are always being added, so be sure to check back regularly.
Thu 8/18:57 pmSTL - BUF
1 stop21h 19mFrontier
Thu 8/83:13 pmBUF - STL
1 stop19h 12mFrontier
Deal found 6/6$159
Mon 6/1010:36 pmSTL - BUF
1 stop9h 00mFrontier
Wed 7/106:28 pmBUF - STL
1 stop26h 29mFrontier
Deal found 6/5$224
Mon 7/89:32 pmSTL - BUF
1 stop10h 05mFrontier
Fri 7/128:06 pmBUF - STL
1 stop14h 19mFrontier
Deal found 6/5$226
Fri 9/138:00 pmSTL - BUF
1 stop20h 46mFrontier
Sun 9/159:19 pmBUF - STL
1 stop24h 01mFrontier
Deal found 6/5$229
Wed 9/116:11 pmSTL - BUF
1 stop4h 44mDelta
Sat 9/1412:17 pmBUF - STL
1 stop4h 57mDelta
Deal found 6/5$246
Mon 7/159:32 pmSTL - BUF
1 stop10h 05mFrontier
Thu 7/1811:30 amBUF - STL
1 stop22h 06mFrontier
Deal found 6/5$249
Wed 7/310:36 pmSTL - BUF
1 stop9h 50mFrontier
Wed 7/106:28 pmBUF - STL
1 stop26h 29mFrontier
Deal found 6/5$255
Wed 8/74:22 pmSTL - BUF
1 stop4h 39mAmerican Airlines
Mon 8/126:30 pmBUF - STL
1 stop4h 47mAmerican Airlines
Deal found 6/5$256
Sun 6/236:30 amSTL - BUF
1 stop3h 54mDelta
Tue 6/252:45 pmBUF - STL
1 stop7h 09mDelta
Deal found 6/5$261

St. Louis to Buffalo flights leaving soon

Find last-minute flight options from St. Louis to Buffalo 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 3,050,429 searches. Data last updated June 6, 2024.
Check out these flights departing soon from St. Louis to Buffalo. To prevent any unwanted surprises, users should verify their flight info before booking.
Wed 6/126:30 amSTL - BUF
1 stop3h 54mDelta
Wed 6/199:01 amBUF - STL
1 stop5h 25mDelta
Deal found 6/5$307
Wed 6/126:30 amSTL - BUF
1 stop5h 51mUnited Airlines
Wed 6/196:09 amBUF - STL
2 stops10h 32mUnited Airlines
Deal found 6/5$407
Wed 6/126:08 amSTL - BUF
2 stops11h 44mUnited Airlines
Wed 6/196:09 amBUF - STL
2 stops10h 32mUnited Airlines
Deal found 6/5$412
Thu 6/136:00 amSTL - BUF
1 stop6h 37mDelta
Sun 6/166:15 amBUF - STL
1 stop4h 00mDelta
Deal found 6/6$486
Tue 6/116:11 amSTL - BUF
1 stop10h 26mAmerican Airlines
Wed 6/126:46 pmBUF - STL
1 stop6h 17mAmerican Airlines
Deal found 6/5$488
Wed 6/126:11 amSTL - BUF
1 stop10h 26mAmerican Airlines
Fri 6/2112:38 pmBUF - STL
1 stop4h 28mAmerican Airlines
Deal found 6/6$492
Wed 6/1211:38 amSTL - BUF
2 stops10h 43mUnited Airlines
Wed 6/197:00 amBUF - STL
1 stop6h 13mUnited Airlines
Deal found 6/5$511
Wed 6/1211:38 amSTL - BUF
2 stops10h 43mUnited Airlines
Wed 6/196:09 amBUF - STL
2 stops9h 05mUnited Airlines
Deal found 6/5$516
Wed 6/126:11 amSTL - BUF
1 stop10h 26mAmerican Airlines
Wed 6/1912:38 pmBUF - STL
1 stop4h 28mAmerican Airlines
Deal found 6/6$542

One-way flights to Buffalo from St. Louis

Search for one-way flight options from St. Louis to Buffalo. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,050,429 searches. Data last updated June 6, 2024.
Take a look at some of the one-way flights we've detected from St. Louis to Buffalo. Those needing a return flight from St. Louis to Buffalo can use the search form above.
Fri 6/287:44 pmSTL - BUF
1 stop23h 33mFrontier
Deal found 6/6$89
Tue 6/183:47 pmSTL - BUF
1 stop25h 05mFrontier
Deal found 6/5$90
Wed 7/109:32 pmSTL - BUF
1 stop10h 45mFrontier
Deal found 6/5$91
Mon 6/1710:36 pmSTL - BUF
1 stop9h 00mFrontier
Deal found 6/6$104
Wed 6/196:30 amSTL - BUF
1 stop3h 54mDelta
Deal found 6/5$118
Mon 7/159:32 pmSTL - BUF
1 stop10h 05mFrontier
Deal found 6/5$120
Mon 7/89:32 pmSTL - BUF
1 stop10h 05mFrontier
Deal found 6/5$121
Wed 6/265:38 pmSTL - BUF
1 stop5h 45mAmerican Airlines
Deal found 6/5$123
Sat 6/2912:13 pmSTL - BUF
1 stop7h 04mFrontier
Deal found 6/6$128

Find flights from St. Louis to Buffalo within your budget

Customize your flight search to find flights from St. Louis to Buffalo 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 3,050,429 searches. Data last updated June 6, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$159 - $411

Route

Depart

Return

Price

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Thu 8/1

1 stop21h 19m

Buffalo

Thu 8/8

1 stop19h 12m

$159

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Mon 7/8

1 stop10h 05m

Buffalo

Fri 7/12

1 stop14h 19m

$226

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Fri 9/13

1 stop20h 46m

Buffalo

Sun 9/15

1 stop24h 01m

$229

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Wed 9/11

1 stop4h 44m

Buffalo

Tue 9/17

1 stop3h 49m

$246

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Mon 7/15

1 stop10h 05m

Buffalo

Thu 7/18

1 stop22h 06m

$249

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Wed 8/7

1 stop4h 39m

Buffalo

Mon 8/12

1 stop4h 47m

$256

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Sun 6/23

1 stop3h 54m

Buffalo

Tue 6/25

1 stop7h 09m

$261

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Wed 9/11

1 stop4h 43m

Buffalo

Fri 9/13

1 stop6h 05m

$276

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Wed 7/3

1 stop14h 51m

Buffalo

Wed 7/10

2 stops9h 18m

$411

Flights are sorted by cheapest first

Deals found on 6/6

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

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to Buffalo. Price data was last updated on May 31, 2024.
To ensure you get the cheapest price possible for a flight from St. Louis to Buffalo, you should look to book at least 61 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

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

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Buffalo. Price data was last updated on June 2, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Buffalo flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

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

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

Temperature and rainfall in Buffalo by month

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

BUF

Temperature

24.8 - 71.6 °F

If weather is an important factor for your trip to Buffalo, 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 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.8 F).

Reviews of airlines servicing Buffalo

Get insights into the airlines that provide service to Buffalo. 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 Buffalo. Reviews last updated June 6, 2024.
To help decide which airline to fly from St. Louis to Buffalo, see what other customers have to say about Frontier, American 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
8.0
Very good
10,368 reviews

Overall

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Reviews

1 / 10

On time flights; courteous staff; efficient boarding system! Thank you!

Delta
8.0
Very good
10,368 reviews
Delta
8.0
Very good
10,368 reviews

Overall

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Reviews

1 / 10

On time flights; courteous staff; efficient boarding system! Thank you!

United Airlines
7.4
Good
10,696 reviews
Delta
8.0
Very good
10,368 reviews

Overall

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Reviews

1 / 10

On time flights; courteous staff; efficient boarding system! Thank you!

American Airlines
7.3
Good
14,227 reviews
Delta
8.0
Very good
10,368 reviews

Overall

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Reviews

1 / 10

On time flights; courteous staff; efficient boarding system! Thank you!

Aer Lingus
7.2
Good
1,287 reviews
Delta
8.0
Very good
10,368 reviews

Overall

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Reviews

1 / 10

On time flights; courteous staff; efficient boarding system! Thank you!

Sun Country Air
7.2
Good
593 reviews
Delta
8.0
Very good
10,368 reviews

Overall

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Entertainment

8.0

Food

7.4

Reviews

1 / 10

On time flights; courteous staff; efficient boarding system! Thank you!

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Buffalo. 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 St. Louis to Buffalo for under $200 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Buffalo for under $200. The cheapest flight booked recently is on Frontier for just $159, but on average you can expect to pay $290.

  • Are there last-minute flights available from St. Louis to Buffalo for under $400?

    There are currently 20+ open flights from St. Louis to Buffalo within the next 7 days for less than $400.

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

    According to our current data, Frontier ($159), Delta ($246), and American Airlines ($256) offers the cheapest pricing from St. Louis to Buffalo. Frontier is currently priced 58% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from St. Louis to Buffalo one-way?

    $89 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from $118 and $123, respectively.

  • What does STL to BUF mean?

    STL and BUF 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. STL to BUF refers to a flight route from Lambert-St Louis Airport to Buffalo Airport.

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

    The amount of baggage you can bring on your St. Louis to Buffalo 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 St. Louis to Buffalo with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Buffalo 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 St. Louis to Buffalo that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from St. Louis to Buffalo 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 St. Louis to Buffalo that allow pets onboard?

    Many airlines flying from St. Louis to Buffalo 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 St. Louis to Buffalo?

    Yes, you can often find last-minute deals on St. Louis to Buffalo 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 St. Louis to Buffalo flight deals updated?

    The St. Louis to Buffalo flight deals you see on this page were last updated on 6/6.

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

    Consider American Airlines, Delta or Frontier when booking your flight. These represent the most popular airlines when flying from St. Louis to Buffalo.

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

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Buffalo (average of $256). Flying from St. Louis to Buffalo in July is currently the most expensive (average of $359). 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.

See more FAQs

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

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Top 4 airlines flying from St. Louis to Buffalo

Discover the top 4 airlines that operate flights from St. Louis to Buffalo. 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 3,050,429 searches. Data last updated June 6, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$98Average$247FlexibilityNo cancel feeOn-time62%
DeltaCheapest$264Average$365FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$292Average$375FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$324Average$491FlexibilityNo cancel feeOn-time69%
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Search flights from St. Louis to Buffalo by cabin class

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