$435 Cheap Flights from Buffalo (BUF) to Reykjavik (KEF)

View $435 flight on Sun, Apr 26, 2026Opens in a new window

Popular airlines from Buffalo Niagara Intl. Airport (BUF) to Reykjavik–Keflavik Intl. Airport (KEF)

Cheap Flights from Buffalo to Reykjavik (BUF-KEF)

Prices were available within the past 7 days and start at $435 for one-way flights and $543 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Wed, Dec 10 - Wed, Dec 17
BUF
Buffalo
KEF
Reykjavik
$543 Roundtrip, found 7 hours ago
$543
Roundtrip
found 7 hours ago
Select JetBlue Airways flight, departing Wed, Dec 10 from Buffalo to Reykjavik, returning Wed, Dec 17, priced at $543 found 7 hours ago
JetBlue Airways
Sat, Dec 13 - Wed, Dec 17
BUF
Buffalo
KEF
Reykjavik
$553 Roundtrip, found 15 hours ago
$553
Roundtrip
found 15 hours ago
Select JetBlue Airways flight, departing Sat, Dec 13 from Buffalo to Reykjavik, returning Wed, Dec 17, priced at $553 found 15 hours ago
JetBlue Airways
Mon, Nov 24 - Thu, Dec 4
BUF
Buffalo
KEF
Reykjavik
$572 Roundtrip, found 1 hour ago
$572
Roundtrip
found 1 hour ago
Select JetBlue Airways flight, departing Mon, Nov 24 from Buffalo to Reykjavik, returning Thu, Dec 4, priced at $572 found 1 hour ago
JetBlue Airways
Sun, Dec 14 - Wed, Dec 17
BUF
Buffalo
KEF
Reykjavik
$574 Roundtrip, found 7 hours ago
$574
Roundtrip
found 7 hours ago
Select JetBlue Airways flight, departing Sun, Dec 14 from Buffalo to Reykjavik, returning Wed, Dec 17, priced at $574 found 7 hours ago
JetBlue Airways
Mon, Feb 9 - Wed, Feb 18
BUF
Buffalo
KEF
Reykjavik
$580 Roundtrip, found 13 hours ago
$580
Roundtrip
found 13 hours ago
Select JetBlue Airways flight, departing Mon, Feb 9 from Buffalo to Reykjavik, returning Wed, Feb 18, priced at $580 found 13 hours ago
JetBlue Airways
Sat, Dec 13 - Wed, Dec 17
BUF
Buffalo
KEF
Reykjavik
$588 Roundtrip, found 7 hours ago
$588
Roundtrip
found 7 hours ago
Select JetBlue Airways flight, departing Sat, Dec 13 from Buffalo to Reykjavik, returning Wed, Dec 17, priced at $588 found 7 hours ago
Delta
Mon, Apr 20 - Thu, May 7
BUF
Buffalo
KEF
Reykjavik
$602 Roundtrip, found 4 days ago
$602
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Apr 20 from Buffalo to Reykjavik, returning Thu, May 7, priced at $602 found 4 days ago
Virgin Atlantic
Thu, Apr 30 - Thu, May 7
BUF
Buffalo
KEF
Reykjavik
$657 Roundtrip, found 6 hours ago
$657
Roundtrip
found 6 hours ago
Select Virgin Atlantic flight, departing Thu, Apr 30 from Buffalo to Reykjavik, returning Thu, May 7, priced at $657 found 6 hours ago
United
Wed, Sep 2 - Thu, Sep 17
BUF
Buffalo
KEF
Reykjavik
$681 Roundtrip, found 9 hours ago
$681
Roundtrip
found 9 hours ago
Select United flight, departing Wed, Sep 2 from Buffalo to Reykjavik, returning Thu, Sep 17, priced at $681 found 9 hours ago
KLM
Thu, Apr 30 - Thu, May 7
BUF
Buffalo
KEF
Reykjavik
$703 Roundtrip, found 6 hours ago
$703
Roundtrip
found 6 hours ago
Select KLM flight, departing Thu, Apr 30 from Buffalo to Reykjavik, returning Thu, May 7, priced at $703 found 6 hours ago

Alternative airports near Reykjavik

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

Select flight to Keflavik Intl. KEF. Cheapest option available. Average driving time to city center is 45 minutes. Flights from $756
KEF
Keflavik Intl.
Cheapest
Average driving time to city center45 min
Flights from $756

Frequently asked questions

How much does a flight from Buffalo Niagara Intl. Airport (BUF) to Keflavik Intl. Airport (KEF) cost?
Snag a cheap one-way flight from $435 or cheap return flight from $543 from Buffalo Niagara Intl. Airport (BUF) to Keflavik Intl. Airport (KEF) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Buffalo Niagara Intl. Airport (BUF) to Keflavik Intl. Airport (KEF)?
The cheapest month to fly from BUF to KEF is December, when demand is low. Off-peak season is generally when better flight deals are available between these airports.
What is the cheapest airline that flies from Buffalo Niagara Intl. Airport (BUF) to Keflavik Intl. Airport (KEF)?
To find the cheapest airline flying from BUF to KEF, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Buffalo Niagara Intl. Airport (BUF) to Keflavik Intl. Airport (KEF)?
Nonstop flights from Buffalo Niagara Intl. Airport (BUF) to Keflavik Intl. Airport (KEF) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BUF to KEF?
Usually you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* But this can change depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Buffalo Niagara Intl. Airport (BUF) to Keflavik Intl. Airport (KEF)?
To avoid potential delays on the Buffalo Niagara Intl. Airport (BUF) to Keflavik Intl. Airport (KEF) route, travel before 3 PM. Flights after this time are 22% more likely to be canceled.**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 Buffalo Niagara Intl. Airport (BUF) to Keflavik Intl. Airport (KEF) last-minute?
Booking your plane ticket from BUF to KEF just before your journey is typically more expensive. But if there's some wiggle room with your travel dates and times, you could score a cheap last-minute fare.
Is it cheaper to book a BUF to KEF flight and hotel package?
Compared with arranging hotels and flights separately, booking a BUF to KEF flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one place will take the stress out of travel planning. Simply pick your flights and choose from our extensive range of hotels, then customize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Buffalo Niagara Intl. Airport (BUF) to Keflavik Intl. Airport (KEF)?
It's usually possible to cancel or reschedule your BUF to KEF flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Buffalo Niagara Intl.
Destination airport
Keflavik Intl.
Airlines serving
Air Canada, Air France, American Airlines, British Airways, Delta, Icelandair, KLM, Lufthansa, Scandinavian Airlines, United, Virgin Atlantic
Roundtrip price
$542
Distance
2604 mi

Book with confidence

Buffalo to Reykjavik Flights

The cheapest times to fly from Buffalo to Reykjavik

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 Buffalo to Reykjavik are during the month of December. You can find some of the cheapest flights from Buffalo to Reykjavik with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Buffalo to Reykjavik

Sunday is one of the best days to book for cheap flights from Buffalo to Reykjavik: 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 Buffalo to Reykjavik

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 Buffalo to Reykjavik in 2025. You can also book with separate airlines for your outbound and return journeys, from $435 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 Buffalo to Reykjavik 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 Buffalo to Reykjavik 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.

 

Buffalo to Reykjavik Flights

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*Available to One Key members.