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Cheap flights from St. Louis to Buffalo (STL - BUF) from $85

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 5/14. 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
May 9 — May 161
From?
To?
Thu 5/9
Thu 5/16
1 adult, Economy
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The best prices from Lambert-St Louis to Buffalo are usually found in September or January, booked 73 days in advance, depart on a Wednesday or Sunday 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 May 4, 2024.

Popular in

November

Cheapest in

September

Round-trip from

$256

One-way from

$128
High demand for flights, 18% potential price rise
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Best time to find cheap flights, 22% 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 34 days in advance to save up to 69% 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 34 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 November. For low rates, September can be a great choice for travel to Buffalo. Flights to Buffalo from St. Louis in September are about $405 on average during September, but can be found for as low as $169.

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

It’s optimal to fly from St. Louis to Buffalo at noon. By choosing this option you can save up to 28% on the cost of your flight, compared to a flight in the morning.

Cheap Delta flights from St. Louis to Buffalo

Explore cheap flight options specifically provided by Delta for the route between St. Louis and Buffalo. 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 2,864,334 searches. Data last updated May 4, 2024.
Find some of the cheapest Delta flights traveling from St. Louis to Buffalo. Come back soon if you're not finding the exact deal you're looking for.
Tue 5/146:30 amSTL - BUF
1 stop6h 01mDelta
Wed 5/156:30 amBUF - STL
1 stop6h 46mDelta
Deal found 5/1$321
Fri 5/2412:00 pmSTL - BUF
1 stop3h 57mDelta
Tue 5/286:00 amBUF - STL
1 stop6h 48mDelta
Deal found 5/1$447
Tue 5/146:30 pmSTL - BUF
1 stop4h 29mDelta
Wed 5/156:12 pmBUF - STL
1 stop4h 22mDelta
Deal found 5/2$470
Mon 7/156:10 pmSTL - BUF
1 stop4h 49mDelta
Thu 7/1812:04 pmBUF - STL
2 stops10h 32mDelta
Deal found 5/3$785
Mon 7/156:10 pmSTL - BUF
1 stop4h 49mDelta
Thu 7/1812:04 pmBUF - STL
2 stops10h 32mDelta
Deal found 5/2$795
Fri 10/113:40 pmSTL - BUF
1 stop6h 21mDelta
Tue 10/1510:45 amBUF - STL
2 stops7h 42mDelta
Deal found 5/2$1,163
Fri 6/711:25 amSTL - BUF
2 stops10h 37mDelta
Tue 6/1110:15 amBUF - STL
2 stops8h 05mDelta
Deal found 5/2$1,214
Wed 6/126:30 amSTL - BUF
2 stops10h 49mDelta
Sun 6/167:05 amBUF - STL
2 stops7h 21mDelta
Deal found 5/2$1,238
Mon 6/103:23 pmSTL - BUF
2 stops7h 40mDelta
Fri 6/1412:14 pmBUF - STL
2 stops10h 41mDelta
Deal found 5/3$1,354

Cheap Frontier flights from St. Louis to Buffalo

Explore cheap flight options specifically provided by Frontier for the route between St. Louis and Buffalo. 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 2,864,334 searches. Data last updated May 4, 2024.
Some of the lowest-priced Frontier flights we've found at this time heading from St. Louis to Buffalo. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Wed 7/319:20 pmSTL - BUF
1 stop21h 59mFrontier
Tue 8/68:57 pmBUF - STL
1 stop24h 23mFrontier
Deal found 5/2$202
Sat 5/255:56 pmSTL - BUF
1 stop24h 36mFrontier
Sat 6/19:11 pmBUF - STL
1 stop10h 57mFrontier
Deal found 5/3$206
Thu 6/63:32 pmSTL - BUF
1 stop24h 53mFrontier
Tue 6/115:01 pmBUF - STL
1 stop15h 24mFrontier
Deal found 5/2$211
Wed 7/249:20 pmSTL - BUF
1 stop21h 59mFrontier
Mon 7/295:16 pmBUF - STL
1 stop19h 34mFrontier
Deal found 5/3$215
Thu 6/63:32 pmSTL - BUF
1 stop24h 53mFrontier
Sun 6/97:54 pmBUF - STL
1 stop22h 20mFrontier
Deal found 5/2$219
Wed 5/299:10 pmSTL - BUF
1 stop21h 13mFrontier
Sun 6/24:29 pmBUF - STL
1 stop28h 51mFrontier
Deal found 5/2$225
Sat 6/1512:13 pmSTL - BUF
1 stop7h 04mFrontier
Thu 6/207:55 pmBUF - STL
1 stop12h 12mFrontier
Deal found 5/1$228
Fri 6/77:44 pmSTL - BUF
1 stop23h 33mFrontier
Tue 6/115:01 pmBUF - STL
1 stop15h 24mFrontier
Deal found 5/2$229
Mon 6/106:16 pmSTL - BUF
1 stop20h 42mFrontier
Fri 6/146:15 pmBUF - STL
1 stop16h 14mFrontier
Deal found 5/3$240

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

Find cheap flight options from St. Louis to Buffalo specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,864,334 searches. Prices were last updated on May 4, 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.
Sat 5/255:56 pmSTL - BUF
1 stop24h 36mFrontier
Sat 6/19:11 pmBUF - STL
1 stop10h 57mFrontier
Deal found 5/3$206
Thu 6/63:32 pmSTL - BUF
1 stop24h 53mFrontier
Tue 6/115:01 pmBUF - STL
1 stop15h 24mFrontier
Deal found 5/2$211
Fri 6/77:44 pmSTL - BUF
1 stop23h 33mFrontier
Tue 6/115:01 pmBUF - STL
1 stop15h 24mFrontier
Deal found 5/2$229
Mon 6/106:16 pmSTL - BUF
1 stop20h 42mFrontier
Fri 6/146:15 pmBUF - STL
1 stop16h 14mFrontier
Deal found 5/3$240
Sat 5/255:56 pmSTL - BUF
1 stop24h 36mFrontier
Mon 5/2712:48 pmBUF - STL
1 stop8h 32mFrontier
Deal found 5/3$254
Fri 6/147:44 pmSTL - BUF
1 stop23h 33mFrontier
Fri 6/216:15 pmBUF - STL
1 stop16h 14mFrontier
Deal found 5/3$259
Sat 5/255:31 pmSTL - BUF
2 stops15h 10mUnited Airlines
Sat 6/110:05 amBUF - STL
1 stop6h 36mUnited Airlines
Deal found 5/3$396
Sat 5/255:31 pmSTL - BUF
2 stops15h 10mUnited Airlines
Mon 5/277:00 amBUF - STL
1 stop4h 08mUnited Airlines
Deal found 5/3$446
Tue 5/146:30 pmSTL - BUF
1 stop4h 29mDelta
Wed 5/156:12 pmBUF - STL
1 stop4h 22mDelta
Deal found 5/2$470

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 2,864,334 searches. Data last updated May 4, 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 8/269:20 pmSTL - BUF
1 stop21h 59mFrontier
Sun 9/19:19 pmBUF - STL
1 stop24h 01mFrontier
Deal found 5/3$152
Sat 5/255:56 pmSTL - BUF
1 stop24h 36mFrontier
Sat 6/19:11 pmBUF - STL
1 stop10h 57mFrontier
Deal found 5/3$206
Thu 6/63:32 pmSTL - BUF
1 stop24h 53mFrontier
Tue 6/115:01 pmBUF - STL
1 stop15h 24mFrontier
Deal found 5/2$211
Wed 7/249:20 pmSTL - BUF
1 stop21h 59mFrontier
Mon 7/295:16 pmBUF - STL
1 stop19h 34mFrontier
Deal found 5/3$215
Fri 6/77:44 pmSTL - BUF
1 stop23h 33mFrontier
Tue 6/115:01 pmBUF - STL
1 stop15h 24mFrontier
Deal found 5/2$229
Sun 8/253:53 pmSTL - BUF
1 stop23h 27mFrontier
Sun 9/19:19 pmBUF - STL
1 stop24h 01mFrontier
Deal found 5/3$231
Mon 6/106:16 pmSTL - BUF
1 stop20h 42mFrontier
Fri 6/146:15 pmBUF - STL
1 stop16h 14mFrontier
Deal found 5/3$240
Sun 8/253:53 pmSTL - BUF
1 stop23h 27mFrontier
Mon 9/25:16 pmBUF - STL
1 stop19h 34mFrontier
Deal found 5/3$241
Sun 9/16:00 amSTL - BUF
1 stop4h 17mAmerican Airlines
Sun 9/16:30 pmBUF - STL
1 stop4h 38mAmerican Airlines
Deal found 5/3$246

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 2,864,334 searches. Data last updated May 4, 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.
Tue 5/144:50 pmSTL - BUF
1 stop27h 03mFrontier
Deal found 5/1$85
Tue 8/1310:32 pmSTL - BUF
1 stop18h 14mFrontier
Deal found 5/2$119
Wed 6/265:38 pmSTL - BUF
1 stop5h 45mAmerican Airlines
Deal found 5/3$122
Thu 7/113:53 pmSTL - BUF
1 stop24h 53mFrontier
Deal found 5/3$128
Wed 6/2612:15 pmSTL - BUF
3 stops21h 42mMultiple Airlines
Deal found 5/3$214
Wed 6/261:55 pmSTL - BUF
2 stops20h 02mMultiple Airlines
Deal found 5/3$233
Tue 8/137:00 amSTL - BUF
2 stops9h 27mAmerican Airlines
Deal found 5/2$287
Tue 5/146:40 amSTL - BUF
2 stops7h 59mAmerican Airlines
Deal found 5/1$288
Thu 7/116:04 amSTL - BUF
2 stops10h 36mAmerican Airlines
Deal found 5/3$298

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 2,864,334 searches. Data last updated May 4, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$202 - $465

Route

Depart

Return

Price

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Wed 7/31

1 stop21h 59m

Buffalo

Tue 8/6

1 stop24h 23m

$202

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Sat 5/25

1 stop24h 36m

Buffalo

Sat 6/1

1 stop10h 57m

$206

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Thu 6/6

1 stop24h 53m

Buffalo

Tue 6/11

1 stop15h 24m

$211

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Wed 7/24

1 stop21h 59m

Buffalo

Mon 7/29

1 stop19h 34m

$215

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Tue 6/25

1 stop6h 50m

Buffalo

Wed 6/26

1 stop5h 19m

$244

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Fri 8/16

1 stop4h 24m

Buffalo

Tue 8/20

1 stop5h 18m

$258

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Tue 5/14

1 stop6h 01m

Buffalo

Wed 5/15

1 stop6h 46m

$321

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Sat 5/25

2 stops15h 10m

Buffalo

Sat 6/1

1 stop6h 36m

$396

Lambert-St LouisBuffalo

STL - BUF

STLBUF

Lambert-St Louis

Wed 7/31

2 stops19h 48m

Buffalo

Mon 8/5

3 stops18h 12m

$465

Flights are sorted by cheapest first

Deals found on 5/2

When is the best time to 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 January 28, 2024.
To ensure you get the cheapest price possible for a flight from St. Louis to Buffalo, you should look to book at least 73 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

When is the cheapest time 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 April 28, 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. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Buffalo by month

Plan your trip from St. Louis to Buffalo by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Buffalo is currently $197 while a round-trip flight costs $280. Price data was last updated on April 28, 2024.

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 $363). 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

$256

February

$266

March

$295

April

$278

May

$289

June

$331

July

$363

August

$298

September

$276

October

$260

November

$256

December

$278

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

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 May 4, 2024.
To help decide which airline to fly from St. Louis to Buffalo, see what other customers have to say about Delta, Frontier and American Airlines. 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
10,848 reviews
Check prices

Comfort

7.9

Food

7.4

Overall

8.1

Crew

8.6

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

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

Delta
8.1
Very good
10,848 reviews
Delta
8.1
Very good
10,848 reviews
Check prices

Comfort

7.9

Food

7.4

Overall

8.1

Crew

8.6

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

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

United Airlines
7.4
Good
11,134 reviews
Delta
8.1
Very good
10,848 reviews
Check prices

Comfort

7.9

Food

7.4

Overall

8.1

Crew

8.6

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

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

American Airlines
7.3
Good
14,755 reviews
Delta
8.1
Very good
10,848 reviews
Check prices

Comfort

7.9

Food

7.4

Overall

8.1

Crew

8.6

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

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

Frontier
6.3
Okay
4,100 reviews
Delta
8.1
Very good
10,848 reviews
Check prices

Comfort

7.9

Food

7.4

Overall

8.1

Crew

8.6

Entertainment

8.0

Boarding

8.2

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 $300 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Buffalo for under $300. The cheapest flight booked recently is on Frontier for just $202, but on average you can expect to pay $239.

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

    According to our current data, Frontier ($202), American Airlines ($244), and Delta ($321) offers the cheapest pricing from St. Louis to Buffalo. Frontier is currently priced 50% below the average price you’ll pay for this route.

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

    $85 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $122 and $410, respectively.

  • 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 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 5/3.

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 2,864,334 searches. Data last updated May 4, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$97Average$246FlexibilityNo cancel feeOn-time62%
Search Frontier flights
United AirlinesCheapest$172Average$470FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapest$265Average$377FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$283Average$375FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
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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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Fly with Cheapflights

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

When you search for this flight from St. Louis to Buffalo, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

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 St. Louis to Buffalo.

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

Need flexible booking options for your flight to Buffalo from St. Louis? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Not ready to book yet? You can track prices for flights from St. Louis to Buffalo on Cheapflights with our Price Alert feature and get notified when better prices are available.

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