163 € Cheap Flights from Buffalo Niagara to St Louis

Compare Buffalo Niagara to St Louis flight deals

Find the cheapest month or even day of the year to fly to St Louis

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Flight deals from Buffalo Niagara to St Louis

Looking for a cheap last-minute deal or the best return flight from Buffalo Niagara Airport to St Louis Airport? If you want to travel next month, return fares start from 163 €. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Buffalo Niagara to St Louis

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Buffalo Niagara to St Louis flights are currently cheapest in July.

Buffalo Niagara to St Louis: Alternative routes

Compare routes from Buffalo Niagara to St Louis below. You may find an airport to fly into that's cheaper, faster, or easier than St Louis.

Buffalo to St Louis: Flight information

The things to know before you go.
Cheapest flight found163 €
Cheapest month to flyJuly

Finding cheap flights from Buffalo Niagara to St Louis: Frequently asked questions

The best price we found for a return flight from Buffalo Niagara to St Louis is 163 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Buffalo Niagara to St Louis. But we found flights with one or more stops from 163 €.
As of June 2026, there are no flights flying from Buffalo Niagara to St Louis.
The cheapest month to fly from Buffalo Niagara to St Louis is usually July.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Buffalo Niagara Airport to St Louis Airport on Tuesday, 21 July 2026.
No airlines currently offer direct flights between Buffalo Niagara Airport and St Louis Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to St Louis but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to St Louis is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines offers the cheapest flight tickets to St Louis.

Flying from Buffalo Niagara Airport (BUF) to St Louis Airport (STL): what you need to know

  • St Louis's timezone is UTC-6, making St Louis one hour behind Buffalo.

  • For a smooth journey, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This ensures you have enough time to board your BUF to STL flight.

  • You'll likely experience longer lines in popular months like August. Arriving up to four hours in advance for an international flight and two hours for domestic departures will give you ample time for security and boarding.

  • If you want to split up your journey, simply deselect 'Direct flights only' when searching for your ticket from Buffalo Niagara Airport to St Louis Airport. Here are the most popular stopovers between BUF and STL:

    • Chicago O'Hare International Airport

    • Detroit Wayne County Airport

    • Chicago Midway Airport

How to find the cheapest flights from Buffalo Niagara Airport (BUF) to St Louis Airport (STL)

  • The lowest price we've seen for a one-way Buffalo Niagara Airport to St Louis Airport flight is 81 €. A round-trip fare is currently 163 €. Depending on the availability when you book, these fares could change.

  • To get your hands on cheap tickets from BUF to STL, book as early as you can. Airlines generally offer the most competitive fares when flights are first made available.

  • If you can be flexible with your travel dates, try using the 'Whole month' tool. It'll show you the cheapest price across every month when searching for your flight from Buffalo Niagara Airport to St Louis Airport.

  • Getting your hands on cheap flights from BUF to STL is a cinch with Price Alerts. Simply set up one of these automatic alerts and we'll let you know when fares go down.

  • Tailor your flights using filters. Choose your ideal arrival and departure times, airlines and total journey duration. You can also sort results by 'Cheapest,' 'Best' or 'Fastest' flights from Buffalo Niagara Airport to St Louis Airport.

Handy information about Buffalo Niagara Airport (BUF)

  • You'll find BUF at Genesee Street.

  • When it comes to Buffalo Niagara Airport's on-time performance, data shows 74% of flights stick to their scheduled arrival time.

  • To get to Buffalo Niagara Airport from central Buffalo, it'll take around 20 minutes by car. This depends on traffic though. It's approximately 16 kilometres from the airport to the city centre.

  • Expect a trip time of about 40 minutes on public transport.

  • Get your trip off to a stress-free start by staying near BUF. Whether you're boarding an early flight from Buffalo Niagara Airport to St Louis Airport or just don't want to be rushed, these hotels are perfect:

Arriving at St Louis Airport (STL)

Getting from St Louis Airport (STL) to central St Louis

  • The street address for STL is 10701 Lambert International Blvd..

  • St Louis Airport is roughly 24 kilometres from central St Louis. Driving there takes about 25 minutes.

  • Getting there on public transport takes about 30 minutes.

When to fly to St Louis Airport (STL)

  • The quietest month for a flight from Buffalo Niagara Airport to St Louis Airport is March, while July is the busiest. Pick the best time to go to St Louis based on whether you prefer a more fast-paced or easygoing experience.

  • Lock in your flight from Buffalo Niagara Airport to St Louis Airport for July if you want to visit St Louis during its warmest month. You can expect temperatures of between 17ºC (63ºF) and 33ºC (91ºF).

  • For cooler conditions, search for a cheap ticket from BUF to STL in January. Average temperatures are between -7ºC (19ºF) and 8ºC (46ºF) then.

Explore more of the United States

  • Chicago is just one of the many places in the United States waiting to be discovered once you've seen the sights of St Louis. Around 418 kilometres away to the north-east, its top attractions include Millennium Park, Art Institute of Chicago and Willis Tower.

  • Around 370 kilometres east of St Louis, Indianapolis is another essential stop in the United States. Experience major highlights starting with Lucas Oil Stadium, Eiteljorg Museum and The Children's Museum of Indianapolis.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.