Icelandair Flight FI681 Deals & Information (2025/2026)

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Icelandair Flight 681 Route Deals From $518

The cheapest prices found with in the last 7 days for return flights were $678 and $518 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 24 - Thu, Oct 30
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$678 Roundtrip, found 1 day ago
$678
Roundtrip
found 1 day ago
Select Icelandair flight, departing Fri, Oct 24 from Keflavik Intl. to Seattle - Tacoma Intl., returning Thu, Oct 30, priced at $678 found 1 day ago
Wed, Nov 5 - Wed, Nov 26
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$685 Roundtrip, found 5 days ago
$685
Roundtrip
found 5 days ago
Select Icelandair flight, departing Wed, Nov 5 from Keflavik Intl. to Seattle - Tacoma Intl., returning Wed, Nov 26, priced at $685 found 5 days ago
Mon, Jun 1 - Wed, Jun 17
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$687 Roundtrip, found 2 days ago
$687
Roundtrip
found 2 days ago
Select Icelandair flight, departing Mon, Jun 1 from Keflavik Intl. to Seattle - Tacoma Intl., returning Wed, Jun 17, priced at $687 found 2 days ago
Sun, Jan 4 - Thu, Jun 18
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$691 Roundtrip, found 15 hours ago
$691
Roundtrip
found 15 hours ago
Select Icelandair flight, departing Sun, Jan 4 from Keflavik Intl. to Seattle - Tacoma Intl., returning Thu, Jun 18, priced at $691 found 15 hours ago
Thu, Oct 23 - Wed, Oct 29
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$697 Roundtrip, found 3 days ago
$697
Roundtrip
found 3 days ago
Select Icelandair flight, departing Thu, Oct 23 from Keflavik Intl. to Seattle - Tacoma Intl., returning Wed, Oct 29, priced at $697 found 3 days ago
Thu, Sep 4 - Tue, Sep 16
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$721 Roundtrip, found 6 days ago
$721
Roundtrip
found 6 days ago
Select Icelandair flight, departing Thu, Sep 4 from Keflavik Intl. to Seattle - Tacoma Intl., returning Tue, Sep 16, priced at $721 found 6 days ago
Mon, Sep 8 - Tue, Sep 16
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$727 Roundtrip, found 18 hours ago
$727
Roundtrip
found 18 hours ago
Select Icelandair flight, departing Mon, Sep 8 from Keflavik Intl. to Seattle - Tacoma Intl., returning Tue, Sep 16, priced at $727 found 18 hours ago
Fri, Sep 5 - Mon, Sep 22
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$733 Roundtrip, found 4 days ago
$733
Roundtrip
found 4 days ago
Select Icelandair flight, departing Fri, Sep 5 from Keflavik Intl. to Seattle - Tacoma Intl., returning Mon, Sep 22, priced at $733 found 4 days ago
Wed, Aug 27 - Mon, Sep 22
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$734 Roundtrip, found 2 days ago
$734
Roundtrip
found 2 days ago
Select Icelandair flight, departing Wed, Aug 27 from Keflavik Intl. to Seattle - Tacoma Intl., returning Mon, Sep 22, priced at $734 found 2 days ago
Mon, Aug 18 - Wed, Aug 27
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$744 Roundtrip, found 2 days ago
$744
Roundtrip
found 2 days ago
Select Icelandair flight, departing Mon, Aug 18 from Keflavik Intl. to Seattle - Tacoma Intl., returning Wed, Aug 27, priced at $744 found 2 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.