Icelandair Flight 681 Deals & Information (2026/2027)

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Icelandair Flight 681 Route Deals From $505

The cheapest prices found with in the last 7 days for return flights were $666 and $505 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Oct 21 - Tue, Oct 27
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$666 Roundtrip, found 12 hours ago
$666
Roundtrip
found 12 hours ago
Select Icelandair flight, departing Wed, Oct 21 from Keflavik Intl. to Seattle - Tacoma Intl., returning Tue, Oct 27, priced at $666 found 12 hours ago
Fri, Apr 24 - Thu, Apr 30
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$676 Roundtrip, found 4 hours ago
$676
Roundtrip
found 4 hours ago
Select Icelandair flight, departing Fri, Apr 24 from Keflavik Intl. to Seattle - Tacoma Intl., returning Thu, Apr 30, priced at $676 found 4 hours ago
Sat, Jan 16 - Sun, Jan 24
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$681 Roundtrip, found 6 days ago
$681
Roundtrip
found 6 days ago
Select Icelandair flight, departing Sat, Jan 16 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sun, Jan 24, priced at $681 found 6 days ago
Tue, May 19 - Tue, May 26
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$689 Roundtrip, found 4 days ago
$689
Roundtrip
found 4 days ago
Select Icelandair flight, departing Tue, May 19 from Keflavik Intl. to Seattle - Tacoma Intl., returning Tue, May 26, priced at $689 found 4 days ago
Mon, Jun 8 - Mon, Jun 22
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$693 Roundtrip, found 3 days ago
$693
Roundtrip
found 3 days ago
Select Icelandair flight, departing Mon, Jun 8 from Keflavik Intl. to Seattle - Tacoma Intl., returning Mon, Jun 22, priced at $693 found 3 days ago
Tue, Jun 9 - Tue, Jun 16
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$694 Roundtrip, found 6 days ago
$694
Roundtrip
found 6 days ago
Select Icelandair flight, departing Tue, Jun 9 from Keflavik Intl. to Seattle - Tacoma Intl., returning Tue, Jun 16, priced at $694 found 6 days ago
Sun, May 31 - Thu, Jun 4
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$696 Roundtrip, found 3 days ago
$696
Roundtrip
found 3 days ago
Select Icelandair flight, departing Sun, May 31 from Keflavik Intl. to Seattle - Tacoma Intl., returning Thu, Jun 4, priced at $696 found 3 days ago
Sun, Apr 26 - Sat, May 2
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$698 Roundtrip, found 5 days ago
$698
Roundtrip
found 5 days ago
Select Icelandair flight, departing Sun, Apr 26 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sat, May 2, priced at $698 found 5 days ago
Sat, Jun 20 - Wed, Jun 24
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$702 Roundtrip, found 21 hours ago
$702
Roundtrip
found 21 hours ago
Select Icelandair flight, departing Sat, Jun 20 from Keflavik Intl. to Seattle - Tacoma Intl., returning Wed, Jun 24, priced at $702 found 21 hours ago
Wed, May 20 - Sat, May 30
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$706 Roundtrip, found 5 days ago
$706
Roundtrip
found 5 days ago
Select Icelandair flight, departing Wed, May 20 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sat, May 30, priced at $706 found 5 days 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.