Icelandair Flight 631 Deals & Information (2025/2026)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Icelandair Flight 631 Route Deals From $446

The cheapest prices found with in the last 7 days for return flights were $533 and $446 for one-way flights to Logan Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Nov 24 - Tue, Dec 2
KEF
Keflavik Intl.
BOS
Logan Intl.
$533 Roundtrip, found 4 days ago
$533
Roundtrip
found 4 days ago
Select Icelandair flight, departing Mon, Nov 24 from Keflavik Intl. to Logan Intl., returning Tue, Dec 2, priced at $533 found 4 days ago
Sat, Nov 15 - Wed, Nov 19
KEF
Keflavik Intl.
BOS
Logan Intl.
$556 Roundtrip, found 1 day ago
$556
Roundtrip
found 1 day ago
Select Icelandair flight, departing Sat, Nov 15 from Keflavik Intl. to Logan Intl., returning Wed, Nov 19, priced at $556 found 1 day ago
Fri, Sep 12 - Wed, Sep 17
KEF
Keflavik Intl.
BOS
Logan Intl.
$568 Roundtrip, found 12 hours ago
$568
Roundtrip
found 12 hours ago
Select Icelandair flight, departing Fri, Sep 12 from Keflavik Intl. to Logan Intl., returning Wed, Sep 17, priced at $568 found 12 hours ago
Sun, Oct 19 - Sun, Oct 26
KEF
Keflavik Intl.
BOS
Logan Intl.
$570 Roundtrip, found 17 hours ago
$570
Roundtrip
found 17 hours ago
Select Icelandair flight, departing Sun, Oct 19 from Keflavik Intl. to Logan Intl., returning Sun, Oct 26, priced at $570 found 17 hours ago

Frequently asked questions

What route does flight number FI631 take?
You'll be arriving into BOS from Reykjavik Airport (KEF-Keflavik Intl.) if you've booked a ticket on flight number FI631. You'll be in the air for 5 hours and 35 minutes during this trip. What's more, it conveniently travels non-stop.
How often is FI631 on time?
If you've booked tickets with Icelandair flight number FI631 between KEF and BOS, it's comforting to know that 82% of these services arrive according to schedule. If your plane does happen to be delayed, the average wait time is roughly 1 hour and 3 minutes. This service has a 1.35-star rating.
What kind of plane is on flight number FI631?
The Boeing 767-300 is the type of plane predominantly used for flight FI631. More often than not, this flight sets off from Reykjavík--Keflavík Airport and comes in to land at Logan Intl. Airport.
If I am not able to travel due to COVID-19, can I change my flight to a later date?
For more info about changing your FI631 flight with Travelocity, please visit our Customer Service Portal.