$456 Cheap Finnair flights New York (JFK) to Tromsø (TOS)

View $456 flight on Wed, Oct 28, 2026Opens in a new window
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$456 Cheap Finnair flights New York (JFK) to Tromsø (TOS)

Prices were available within the past 7 days and start at $456 for one-way flights and $631 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Finnair
Wed, Oct 28 - Mon, Nov 2
JFK
New York
TOS
Tromsø
$631 Roundtrip, found 1 hour ago
$631
Roundtrip
found 1 hour ago
Select Finnair flight, departing Wed, Oct 28 from New York to Tromsø, returning Mon, Nov 2, priced at $631 found 1 hour ago
Flights from New York (JFK) to Tromsø (TOS)
Origin airport
John F. Kennedy Intl.
Destination airport
Langnes
Airlines serving
Aer Lingus, Air France, Austrian Airlines, British Airways, Delta, Finnair, Iberia, KLM, LOT-Polish Airlines, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal
Popular airline
Finnair
Distance
3678 mi

Frequently asked questions

How much is a Finnair flight from John F. Kennedy Intl. Airport (JFK) to Langnes Airport (TOS)?
You can find cheap round-trip Finnair flights from $631 from JFK to TOS by filtering your results from "Price (lowest to highest)" on Expedia. Or search for options from $456 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from JFK to TOS with Finnair?
Look for return or one-way flights to Tromsø in May or April. You could find lower fares with Finnair during these off-peak times.
What is the cheapest time to book flights from John F. Kennedy Intl. Airport (JFK) to Langnes Airport (TOS) with Finnair?
Scoring the best Finnair deals from JFK to TOS is typically all about timing. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. To top it off, you can pocket 17% on average by buying your fare on a Sunday compared to a Friday, which is often the most expensive day to book.* It's smart to kick off your flight search about one month before your departure date.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Finnair fly nonstop from John F. Kennedy Intl. Airport (JFK) to Langnes Airport (TOS)?
Enter your dates, click search and use the "Nonstop" filter on Expedia to browse any direct flights from JFK to TOS with Finnair or another airline.
What is the earliest Finnair flight from JFK to TOS?
To find the earliest departures from JFK to TOS with Finnair, sort your results by "Early Morning" and "Morning." Booking an early flight usually means you'll experience fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Finnair fly into in Tromsø?
Finnair flights from John F. Kennedy Intl. Airport (JFK) to Tromsø touch down at Langnes Airport (TOS). This is the main gateway to this city.
What kind of luggage can I take on a Finnair flight from John F. Kennedy Intl. Airport (JFK) to Langnes Airport (TOS)?
For checked luggage, you can bring 1 checked-in bag weighing up to 50 lb with dimensions not exceeding 62 inches. You can also bring 1 cabin bag on board when flying standard economy from JFK to TOS with Finnair. This carry-on has to weigh less than 22 lb and be no larger than 9 inches x 15 inches x 15 inches. Going above these restrictions can mean additional fees, so check Finnair's baggage allowance rules before packing.
Why fly with Finnair from JFK to TOS?
Jetting off from JFK to TOS with Finnair comes with a range of perks, including a 4-star airline rating and a rewarding loyalty program. Plus, when you book through Expedia, One Key™ members can collect OneKeyCash™* to redeem on select future travel purchases. That's on top of the Finnair Plus points you can earn with Finnair.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Finnair flight from John F. Kennedy Intl. Airport (JFK) to Langnes Airport (TOS)?
You can usually change or cancel your flight, although there may be additional charges if your booking was made over 24 hours ago. Want to keep your options open? Make use of Expedia's "Changes included" and "No cancel fee" filters to find flights that won't charge you extra if you have to revise your plans. To make modifications, go to "Trips," select your flight and click on "Manage Booking" for more information.

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*Available to One Key members.