Icelandair Flight 631 Deals & Information (2025/2026)

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Icelandair Flight 631 Route Deals From $437

The cheapest prices found with in the last 7 days for return flights were $429 and $437 for one-way flights to Logan Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Mar 4 - Sun, Mar 8
KEF
Keflavik Intl.
BOS
Logan Intl.
$429 Roundtrip, found 1 day ago
$429
Roundtrip
found 1 day ago
Select Icelandair flight, departing Wed, Mar 4 from Keflavik Intl. to Logan Intl., returning Sun, Mar 8, priced at $429 found 1 day ago
Wed, Jan 28 - Mon, Feb 2
KEF
Keflavik Intl.
BOS
Logan Intl.
$430 Roundtrip, found 1 day ago
$430
Roundtrip
found 1 day ago
Select Icelandair flight, departing Wed, Jan 28 from Keflavik Intl. to Logan Intl., returning Mon, Feb 2, priced at $430 found 1 day ago
Mon, May 18 - Wed, May 27
KEF
Keflavik Intl.
BOS
Logan Intl.
$441 Roundtrip, found 2 days ago
$441
Roundtrip
found 2 days ago
Select Icelandair flight, departing Mon, May 18 from Keflavik Intl. to Logan Intl., returning Wed, May 27, priced at $441 found 2 days ago
Mon, Mar 9 - Wed, Mar 18
KEF
Keflavik Intl.
BOS
Logan Intl.
$449 Roundtrip, found 6 days ago
$449
Roundtrip
found 6 days ago
Select Icelandair flight, departing Mon, Mar 9 from Keflavik Intl. to Logan Intl., returning Wed, Mar 18, priced at $449 found 6 days ago
Mon, Mar 23 - Sat, Mar 28
KEF
Keflavik Intl.
BOS
Logan Intl.
$487 Roundtrip, found 19 hours ago
$487
Roundtrip
found 19 hours ago
Select Icelandair flight, departing Mon, Mar 23 from Keflavik Intl. to Logan Intl., returning Sat, Mar 28, priced at $487 found 19 hours ago
Fri, Mar 20 - Sun, Mar 29
KEF
Keflavik Intl.
BOS
Logan Intl.
$501 Roundtrip, found 4 days ago
$501
Roundtrip
found 4 days ago
Select Icelandair flight, departing Fri, Mar 20 from Keflavik Intl. to Logan Intl., returning Sun, Mar 29, priced at $501 found 4 days ago
Fri, Feb 20 - Wed, Feb 25
KEF
Keflavik Intl.
BOS
Logan Intl.
$515 Roundtrip, found 1 day ago
$515
Roundtrip
found 1 day ago
Select Icelandair flight, departing Fri, Feb 20 from Keflavik Intl. to Logan Intl., returning Wed, Feb 25, priced at $515 found 1 day ago
Wed, Dec 17 - Sun, Jan 4
KEF
Keflavik Intl.
BOS
Logan Intl.
$522 Roundtrip, found 2 days ago
$522
Roundtrip
found 2 days ago
Select Icelandair flight, departing Wed, Dec 17 from Keflavik Intl. to Logan Intl., returning Sun, Jan 4, priced at $522 found 2 days ago
Wed, Dec 17 - Tue, Jan 6
KEF
Keflavik Intl.
BOS
Logan Intl.
$523 Roundtrip, found 2 days ago
$523
Roundtrip
found 2 days ago
Select Icelandair flight, departing Wed, Dec 17 from Keflavik Intl. to Logan Intl., returning Tue, Jan 6, priced at $523 found 2 days ago
Wed, Dec 17 - Sun, Jan 4
KEF
Keflavik Intl.
BOS
Logan Intl.
$533 Roundtrip, found 2 days ago
$533
Roundtrip
found 2 days ago
Select Icelandair flight, departing Wed, Dec 17 from Keflavik Intl. to Logan Intl., returning Sun, Jan 4, priced at $533 found 2 days 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.