Icelandair Flight 681 Deals & Information (2026/2027)

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 681 Route Deals From $503

The cheapest prices found with in the last 7 days for return flights were $662 and $503 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Jan 23 - Thu, Jan 28
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$662 Roundtrip, found 1 day ago
$662
Roundtrip
found 1 day ago
Select Icelandair flight, departing Sat, Jan 23 from Keflavik Intl. to Seattle - Tacoma Intl., returning Thu, Jan 28, priced at $662 found 1 day ago
Wed, Oct 21 - Tue, Oct 27
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$666 Roundtrip, found 4 days ago
$666
Roundtrip
found 4 days ago
Select Icelandair flight, departing Wed, Oct 21 from Keflavik Intl. to Seattle - Tacoma Intl., returning Tue, Oct 27, priced at $666 found 4 days ago
Fri, Apr 24 - Fri, May 1
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$675 Roundtrip, found 2 days ago
$675
Roundtrip
found 2 days ago
Select Icelandair flight, departing Fri, Apr 24 from Keflavik Intl. to Seattle - Tacoma Intl., returning Fri, May 1, priced at $675 found 2 days ago
Fri, Apr 24 - Thu, Apr 30
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$676 Roundtrip, found 4 days ago
$676
Roundtrip
found 4 days ago
Select Icelandair flight, departing Fri, Apr 24 from Keflavik Intl. to Seattle - Tacoma Intl., returning Thu, Apr 30, priced at $676 found 4 days ago
Fri, Aug 28 - Wed, Sep 9
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$678 Roundtrip, found 1 day ago
$678
Roundtrip
found 1 day ago
Select Icelandair flight, departing Fri, Aug 28 from Keflavik Intl. to Seattle - Tacoma Intl., returning Wed, Sep 9, priced at $678 found 1 day ago
Wed, Apr 29 - Sun, May 3
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$684 Roundtrip, found 1 day ago
$684
Roundtrip
found 1 day ago
Select Icelandair flight, departing Wed, Apr 29 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sun, May 3, priced at $684 found 1 day ago
Mon, Apr 27 - Tue, May 5
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$685 Roundtrip, found 1 hour ago
$685
Roundtrip
found 1 hour ago
Select Icelandair flight, departing Mon, Apr 27 from Keflavik Intl. to Seattle - Tacoma Intl., returning Tue, May 5, priced at $685 found 1 hour ago
Sun, May 17 - Fri, May 29
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$687 Roundtrip, found 1 day ago
$687
Roundtrip
found 1 day ago
Select Icelandair flight, departing Sun, May 17 from Keflavik Intl. to Seattle - Tacoma Intl., returning Fri, May 29, priced at $687 found 1 day ago
Sat, Apr 25 - Tue, May 12
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$694 Roundtrip, found 1 day ago
$694
Roundtrip
found 1 day ago
Select Icelandair flight, departing Sat, Apr 25 from Keflavik Intl. to Seattle - Tacoma Intl., returning Tue, May 12, priced at $694 found 1 day ago
Thu, May 21 - Sat, May 30
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$698 Roundtrip, found 1 day ago
$698
Roundtrip
found 1 day ago
Select Icelandair flight, departing Thu, May 21 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sat, May 30, priced at $698 found 1 day ago

Frequently asked questions

What route does flight number FI681 take?
FI681 operates from KEF to Sea-Tac Airport directly. This journey typically takes 7 hours and 50 minutes.
What kind of plane is on flight number FI681?
The Boeing 757-200 is the kind of plane most often used for flight FI681. This flight nearly always takes off from Reykjavik Airport (KEF-Keflavik Intl.) and comes in to land at Sea-Tac 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 FI681 flight with Travelocity, please visit our Customer Service Portal.