Question 1

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

Accepted Answer

Currently priced at C$ 320, American Airlines will fly you from Buffalo to St. Louis and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Southwest - these airlines can fly you to your destination from C$ 343 and C$ 406, respectively. You may be able to fly from Buffalo to St. Louis for 33% less than the average price by searching for these airlines.

Question 2

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

Accepted Answer

To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at C$ 161. Southwest flights start at C$ 170 while deals on Delta start at C$ 172 one-way.

Question 3

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

Accepted Answer

The best time to book flights from Buffalo to St. Louis is 44 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.

Question 4

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

Accepted Answer

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 September is currently the most expensive (average of C$ 491). 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.

Question 5

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

Accepted Answer

Travelers seeking maximum savings on their Buffalo to St. Louis flight should consider departing on Thursday 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.

Question 6

E

Accepted Answer

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.

Question 7

E

Accepted Answer

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).

Question 8

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

Accepted Answer

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.

Question 9

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

Accepted Answer

Find a great deal and save up to 40% by booking at least 45 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$ 435.

Question 10

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

Accepted Answer

Our data shows that September tends to be the cheapest month to fly to St. Louis from Buffalo. Users have commonly found prices around C$ 481 for the month, but tickets can be as low as C$ 364. Due to multiple factors, prepare for potentially higher prices in March.

Question 11

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

Accepted Answer

It’s optimal to fly from Buffalo to St. Louis in the afternoon. By choosing this option you can save up to 44% on the cost of your flight, compared to a flight at noon.

Question 12

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

Accepted Answer

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

Question 13

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

Accepted Answer

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.

Question 14

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

Accepted Answer

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.

Question 15

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

Accepted Answer

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.

Question 16

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

Accepted Answer

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.

Question 17

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

Accepted Answer

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.

Question 18

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

Accepted Answer

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.

Round-trip from	C$ 320
One-way from	C$ 161
Popular in	March
Cheapest in	September
Average price	C$ 528

Airline	Cheapest	Average	Flexibility	On-time
Southwest	CheapestC$ 405	AverageC$ 515	FlexibilityNo cancel fee	On-time63%	Search Southwest flights
United Airlines	CheapestC$ 499	AverageC$ 645	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Cheap flights from Buffalo to St. Louis from C$ 161

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 14/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Buffalo to Lambert-St Louis are usually found in September or August, booked 44 days in advance, depart on a Thursday or Tuesday and return on a Monday

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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 30 June 2025.

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 30 June 2025.

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

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Cheapflights Insights

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

How far ahead should I 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 27 June 2025.

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

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

Find hourly flight availability from Buffalo to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 June 2025.

Reviews of airlines servicing St. Louis

Check out reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from Buffalo to St. Louis to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

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

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

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?

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Top 2 airlines flying from Buffalo to St. Louis

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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 30 June 2025.