$85 Cheap Flights from Baltimore (BWI) to Buffalo (BUF)

View $85 flight on Sat, May 17, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Baltimore to Buffalo (BWI-BUF)

Prices were available within the past 7 days and start at $85 for one-way flights and $170 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, May 15 - Fri, May 16
BWI
Baltimore
BUF
Buffalo
$170 Roundtrip, found 5 hours ago
$170
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Thu, May 15 from Baltimore to Buffalo, returning Fri, May 16, priced at $170 found 5 hours ago
Frontier Airlines
Sat, May 10 - Sat, May 17
BWI
Baltimore
BUF
Buffalo
$171 Roundtrip, found 1 hour ago
$171
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, May 10 from Baltimore to Buffalo, returning Sat, May 17, priced at $171 found 1 hour ago
Frontier Airlines
Sat, May 31 - Sat, Jun 14
BWI
Baltimore
BUF
Buffalo
$172 Roundtrip, just found
$172
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, May 31 from Baltimore to Buffalo, returning Sat, Jun 14, priced at $172 just found
Frontier Airlines
Thu, May 8 - Thu, May 15
BWI
Baltimore
BUF
Buffalo
$180 Roundtrip, found 1 hour ago
$180
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Thu, May 8 from Baltimore to Buffalo, returning Thu, May 15, priced at $180 found 1 hour ago
Frontier Airlines
Sat, May 3 - Thu, May 8
BWI
Baltimore
BUF
Buffalo
$181 Roundtrip, found 1 hour ago
$181
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, May 3 from Baltimore to Buffalo, returning Thu, May 8, priced at $181 found 1 hour ago
Southwest Airlines
Wed, May 14 - Fri, May 16
BWI
Baltimore
BUF
Buffalo
$184 Roundtrip, found 3 hours ago
$184
Roundtrip
found 3 hours ago
Select Southwest Airlines flight, departing Wed, May 14 from Baltimore to Buffalo, returning Fri, May 16, priced at $184 found 3 hours ago
Frontier Airlines
Sat, May 3 - Wed, May 14
BWI
Baltimore
BUF
Buffalo
$185 Roundtrip, found 4 days ago
$185
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Sat, May 3 from Baltimore to Buffalo, returning Wed, May 14, priced at $185 found 4 days ago
Delta
Wed, May 14 - Fri, May 16
BWI
Baltimore
BUF
Buffalo
$194 Roundtrip, found 3 hours ago
$194
Roundtrip
found 3 hours ago
Select Delta flight, departing Wed, May 14 from Baltimore to Buffalo, returning Fri, May 16, priced at $194 found 3 hours ago
American Airlines
Mon, Jun 2 - Thu, Jun 5
BWI
Baltimore
BUF
Buffalo
$207 Roundtrip, found 1 hour ago
$207
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Mon, Jun 2 from Baltimore to Buffalo, returning Thu, Jun 5, priced at $207 found 1 hour ago
United
Wed, Jun 4 - Thu, Jun 5
BWI
Baltimore
BUF
Buffalo
$393 Roundtrip, found 1 hour ago
$393
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Jun 4 from Baltimore to Buffalo, returning Thu, Jun 5, priced at $393 found 1 hour ago
Flights from Baltimore (BWI) to Buffalo (BUF)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Buffalo Niagara Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Roundtrip price
$170
Distance
280 mi

Baltimore to Buffalo Flights

The cheapest times to fly from Baltimore to Buffalo

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Baltimore to Buffalo are during the month of May. You can find some of the cheapest flights from Baltimore to Buffalo with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Baltimore to Buffalo

Sunday is one of the best days to book for cheap flights from Baltimore to Buffalo: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Baltimore to Buffalo

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Baltimore to Buffalo in 2025. You can also book with separate airlines for your outbound and return journeys, from $85 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Baltimore to Buffalo flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Baltimore to Buffalo airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Buffalo Niagara Intl. Airport (BUF) cost?
You can pick up cheap return fares starting from $188 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Buffalo Niagara Intl. Airport (BUF). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Southwest Airlines and American Airlines flight leaving BWI on May 14 2025 and touching down at BUF. The price was last updated on April 23 2025 and has not changed since.
What is the cheapest month to fly from BWI to BUF?
The cheapest flights from BWI to BUF are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Buffalo Niagara Intl. Airport (BUF)?
Jump on a nonstop flight with Southwest Airlines and go straight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Buffalo Niagara Intl. Airport (BUF).
What is the cheapest airline that flies from BWI to BUF?
At the moment, the cheapest carrier offering one-way flights from BWI to BUF is Southwest Airlines. You can jet off on this route from $99. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from BWI on June 2 2025. Prices were last updated on April 23 2025 and have not changed since.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Buffalo Niagara Intl. Airport (BUF)?
Each day on average, 3 direct flights operate from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Buffalo Niagara Intl. Airport (BUF). Choose the departure time that fits your schedule best.
What are the most popular departure times for flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Buffalo Niagara Intl. Airport (BUF)?
The 11 AM departures from BWI to BUF are the busiest. These flights can come with a higher price due to their popularity. If you’re hoping to save money, pick a less crowded time to fly.
What day of the week has the most flights from BWI to BUF?
Travel on a Friday if you’re searching for the best selection of flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Buffalo Niagara Intl. Airport (BUF).
What is the earliest flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Buffalo Niagara Intl. Airport (BUF)?
Baltimore Washington Intl. Thurgood Marshall Airport (BWI)’s earliest flight to Buffalo Niagara Intl. Airport (BUF) departs at approximately 10:50AM UTC-5. With a total flight time of 1h 15m, you’ll arrive at around 12:05PM UTC-5.
How long does it take to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Buffalo Niagara Intl. Airport (BUF)?
Flights from BWI to BUF have an average travel time of 1 hour and 14 minutes. The distance between these two airports is 280 mi.
What is the best time to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Buffalo Niagara Intl. Airport (BUF)?
To arrive at Buffalo Niagara Intl. Airport (BUF) on time, opt for a flight that leaves Baltimore Washington Intl. Thurgood Marshall Airport (BWI) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Buffalo from Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
If you’re traveling on a direct flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Buffalo, Buffalo Niagara Intl. Airport (BUF) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Buffalo Niagara Intl. Airport (BUF) last-minute?
Holding off until just before your departure to book your flight from BWI to BUF often results in higher prices. While you might find some last-minute offers, they’re not always guaranteed. Be flexible with your itinerary for the best chance of scoring a bargain.
Is it cheaper to book a BWI to BUF flight and hotel package?
Compared with arranging flights and hotels separately, booking a BWI to BUF flight and hotel package with Expedia could result in significant savings. Better still, having it all in one place will take the stress out of planning your trip. Simply pick your flights and choose from our extensive range of stays, then customize your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Buffalo Niagara Intl. Airport (BUF)?
If you booked your BWI to BUF flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

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*Available to One Key members.