Icelandair Flight FI681 Deals & Information (2025/2026)

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Icelandair Flight 681 Route Deals From $473

The cheapest prices found with in the last 7 days for return flights were $619 and $473 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Oct 20 - Mon, Nov 3
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$619 Roundtrip, found 6 days ago
$619
Roundtrip
found 6 days ago
Select Icelandair flight, departing Mon, Oct 20 from Keflavik Intl. to Seattle - Tacoma Intl., returning Mon, Nov 3, priced at $619 found 6 days ago
Fri, Jun 6 - Tue, Jun 10
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$638 Roundtrip, found 1 day ago
$638
Roundtrip
found 1 day ago
Select Icelandair flight, departing Fri, Jun 6 from Keflavik Intl. to Seattle - Tacoma Intl., returning Tue, Jun 10, priced at $638 found 1 day ago
Wed, May 14 - Wed, May 21
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$647 Roundtrip, found 3 days ago
$647
Roundtrip
found 3 days ago
Select Icelandair flight, departing Wed, May 14 from Keflavik Intl. to Seattle - Tacoma Intl., returning Wed, May 21, priced at $647 found 3 days ago
Tue, Jun 3 - Mon, Jun 16
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$649 Roundtrip, found 1 day ago
$649
Roundtrip
found 1 day ago
Select Icelandair flight, departing Tue, Jun 3 from Keflavik Intl. to Seattle - Tacoma Intl., returning Mon, Jun 16, priced at $649 found 1 day ago
Sun, Jun 15 - Sat, Jun 21
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$653 Roundtrip, found 6 days ago
$653
Roundtrip
found 6 days ago
Select Icelandair flight, departing Sun, Jun 15 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sat, Jun 21, priced at $653 found 6 days ago
Mon, May 5 - Mon, May 19
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$657 Roundtrip, found 4 days ago
$657
Roundtrip
found 4 days ago
Select Icelandair flight, departing Mon, May 5 from Keflavik Intl. to Seattle - Tacoma Intl., returning Mon, May 19, priced at $657 found 4 days ago
Fri, Sep 5 - Sun, Sep 14
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$657 Roundtrip, found 1 day ago
$657
Roundtrip
found 1 day ago
Select Icelandair flight, departing Fri, Sep 5 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sun, Sep 14, priced at $657 found 1 day ago
Wed, May 7 - Wed, May 14
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$659 Roundtrip, found 1 day ago
$659
Roundtrip
found 1 day ago
Select Icelandair flight, departing Wed, May 7 from Keflavik Intl. to Seattle - Tacoma Intl., returning Wed, May 14, priced at $659 found 1 day ago
Fri, May 30 - Thu, Jun 12
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$663 Roundtrip, found 6 days ago
$663
Roundtrip
found 6 days ago
Select Icelandair flight, departing Fri, May 30 from Keflavik Intl. to Seattle - Tacoma Intl., returning Thu, Jun 12, priced at $663 found 6 days ago
Thu, May 1 - Tue, May 6
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$668 Roundtrip, found 3 days ago
$668
Roundtrip
found 3 days ago
Select Icelandair flight, departing Thu, May 1 from Keflavik Intl. to Seattle - Tacoma Intl., returning Tue, May 6, priced at $668 found 3 days ago
Fri, Jun 6 - Tue, Jun 10
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$669 Roundtrip, found 1 day ago
$669
Roundtrip
found 1 day ago
Select Icelandair flight, departing Fri, Jun 6 from Keflavik Intl. to Seattle - Tacoma Intl., returning Tue, Jun 10, priced at $669 found 1 day ago
Thu, May 1 - Wed, May 7
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$671 Roundtrip, found 6 days ago
$671
Roundtrip
found 6 days ago
Select Icelandair flight, departing Thu, May 1 from Keflavik Intl. to Seattle - Tacoma Intl., returning Wed, May 7, priced at $671 found 6 days ago
Thu, Aug 7 - Sat, Sep 6
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$679 Roundtrip, just found
$679
Roundtrip
just found
Select Icelandair flight, departing Thu, Aug 7 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sat, Sep 6, priced at $679 just found

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.