$136 Cheap Flights from Sioux Falls (FSD) to Buffalo (BUF)

View $136 flight on Tue, Aug 12, 2025Opens in a new window

Popular airlines from Sioux Falls Regional Airport (FSD) to Buffalo Niagara Intl. Airport (BUF)

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Cheap Flights from Sioux Falls to Buffalo (FSD-BUF)

Prices were available within the past 7 days and start at $136 for one-way flights and $258 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Jul 10 - Wed, Jul 16
FSD
Sioux Falls
BUF
Buffalo
$258 Roundtrip, found 5 days ago
$258
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Thu, Jul 10 from Sioux Falls to Buffalo, returning Wed, Jul 16, priced at $258 found 5 days ago
American Airlines
Thu, Oct 9 - Wed, Oct 15
FSD
Sioux Falls
BUF
Buffalo
$259 Roundtrip, found 5 hours ago
$259
Roundtrip
found 5 hours ago
Select American Airlines flight, departing Thu, Oct 9 from Sioux Falls to Buffalo, returning Wed, Oct 15, priced at $259 found 5 hours ago
Delta
Sat, Aug 9 - Fri, Aug 15
FSD
Sioux Falls
BUF
Buffalo
$259 Roundtrip, found 6 hours ago
$259
Roundtrip
found 6 hours ago
Select Delta flight, departing Sat, Aug 9 from Sioux Falls to Buffalo, returning Fri, Aug 15, priced at $259 found 6 hours ago
United
Wed, Sep 3 - Sat, Sep 6
FSD
Sioux Falls
BUF
Buffalo
$259 Roundtrip, found 6 hours ago
$259
Roundtrip
found 6 hours ago
Select United flight, departing Wed, Sep 3 from Sioux Falls to Buffalo, returning Sat, Sep 6, priced at $259 found 6 hours ago
American Airlines
Thu, Oct 30 - Sat, Nov 1
FSD
Sioux Falls
BUF
Buffalo
$264 Roundtrip, found 6 hours ago
$264
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Thu, Oct 30 from Sioux Falls to Buffalo, returning Sat, Nov 1, priced at $264 found 6 hours ago
Delta
Thu, Oct 9 - Wed, Oct 15
FSD
Sioux Falls
BUF
Buffalo
$269 Roundtrip, found 5 hours ago
$269
Roundtrip
found 5 hours ago
Select Delta flight, departing Thu, Oct 9 from Sioux Falls to Buffalo, returning Wed, Oct 15, priced at $269 found 5 hours ago
American Airlines
Thu, Oct 30 - Sat, Nov 1
FSD
Sioux Falls
BUF
Buffalo
$270 Roundtrip, found 6 hours ago
$270
Roundtrip
found 6 hours ago
Select American Airlines flight, departing Thu, Oct 30 from Sioux Falls to Buffalo, returning Sat, Nov 1, priced at $270 found 6 hours ago
Frontier Airlines
Thu, Jul 10 - Wed, Jul 23
FSD
Sioux Falls
BUF
Buffalo
$272 Roundtrip, found 5 days ago
$272
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Thu, Jul 10 from Sioux Falls to Buffalo, returning Wed, Jul 23, priced at $272 found 5 days ago
Delta
Sun, Jul 13 - Tue, Jul 22
FSD
Sioux Falls
BUF
Buffalo
$274 Roundtrip, found 2 days ago
$274
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Jul 13 from Sioux Falls to Buffalo, returning Tue, Jul 22, priced at $274 found 2 days ago
Delta
Fri, Jul 4 - Sat, Jul 5
FSD
Sioux Falls
BUF
Buffalo
$276 Roundtrip, found 2 days ago
$276
Roundtrip
found 2 days ago
Select Delta flight, departing Fri, Jul 4 from Sioux Falls to Buffalo, returning Sat, Jul 5, priced at $276 found 2 days ago

Find the cheapest month to fly from Sioux Falls (FSD) to Buffalo (BUF)

February is typically the cheapest month to fly

From $204 - $823 per traveler.

Graph displaying average flight prices per month

Alternative airports near Buffalo

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Buffalo Niagara Intl. BUF. Cheapest and Closest option available. Average driving time to city center is 16 minutes. Flights from $529
BUF
Buffalo Niagara Intl.
CheapestClosest
Average driving time to city center16 min
Flights from $529
Flights from Sioux Falls (FSD) to Buffalo (BUF)
Origin airport
Sioux Falls Regional
Destination airport
Buffalo Niagara Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, United
Roundtrip price
$258
Distance
905 mi

Sioux Falls to Buffalo Flights

The cheapest times to fly from Sioux Falls 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 Sioux Falls to Buffalo are during the month of July. You can find some of the cheapest flights from Sioux Falls to Buffalo with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sioux Falls to Buffalo

Sunday is one of the best days to book for cheap flights from Sioux Falls 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 Sioux Falls 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 Sioux Falls to Buffalo in 2025. You can also book with separate airlines for your outbound and return journeys, from $136 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 Sioux Falls 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 Sioux Falls 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 Sioux Falls Regional Airport (FSD) to Buffalo Niagara Intl. Airport (BUF) cost?
Discover the latest flight deals from FSD to BUF by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from FSD to BUF?
The cheapest flights from FSD 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.
What is the cheapest airline that flies from FSD to BUF?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from FSD to BUF. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Sioux Falls Regional Airport (FSD) to Buffalo Niagara Intl. Airport (BUF)?
You'll need to hop on a flight with a layover when traveling from Sioux Falls Regional Airport (FSD) to Buffalo Niagara Intl. Airport (BUF). Direct flights don't operate daily on this route. However, just filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from FSD to BUF?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sioux Falls Regional Airport (FSD) to Buffalo Niagara Intl. Airport (BUF)?
To touch down at Buffalo Niagara Intl. Airport (BUF) on schedule, opt for a flight that leaves Sioux Falls Regional Airport (FSD) 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.
Is it cheaper to buy a plane ticket from Sioux Falls Regional Airport (FSD) to Buffalo Niagara Intl. Airport (BUF) last-minute?
Booking your plane ticket from FSD to BUF right before your trip is usually more expensive. However, if you're flexible with your travel times and dates, you could score a cheap last-minute fare.
Is it cheaper to book a FSD to BUF flight and hotel package?
Compared with arranging flights and hotels separately, booking a FSD to BUF flight and hotel package with Expedia could result in significant savings. Better yet, managing everything in one place takes the hassle out of planning your trip. Simply secure your flights and select from our wide range of stays, then personalize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Sioux Falls Regional Airport (FSD) to Buffalo Niagara Intl. Airport (BUF)?
It's generally possible to reschedule or cancel your FSD to BUF flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.