Icelandair Flight 681 Deals & Information (2026/2027)

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Icelandair Flight 681 Route Deals From $502

The cheapest prices found with in the last 7 days for return flights were $661 and $502 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Dec 25 - Sun, Jan 10
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$661 Roundtrip, found 18 hours ago
$661
Roundtrip
found 18 hours ago
Select Icelandair flight, departing Fri, Dec 25 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sun, Jan 10, priced at $661 found 18 hours ago
Thu, Aug 6 - Fri, Aug 14
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$679 Roundtrip, found 4 days ago
$679
Roundtrip
found 4 days ago
Select Icelandair flight, departing Thu, Aug 6 from Keflavik Intl. to Seattle - Tacoma Intl., returning Fri, Aug 14, priced at $679 found 4 days ago
Mon, Aug 31 - Fri, Sep 4
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$686 Roundtrip, found 1 day ago
$686
Roundtrip
found 1 day ago
Select Icelandair flight, departing Mon, Aug 31 from Keflavik Intl. to Seattle - Tacoma Intl., returning Fri, Sep 4, priced at $686 found 1 day ago
Thu, Jul 16 - Sun, Aug 2
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$696 Roundtrip, found 1 day ago
$696
Roundtrip
found 1 day ago
Select Icelandair flight, departing Thu, Jul 16 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sun, Aug 2, priced at $696 found 1 day ago
Wed, Jul 15 - Sat, Jul 18
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$701 Roundtrip, found 6 days ago
$701
Roundtrip
found 6 days ago
Select Icelandair flight, departing Wed, Jul 15 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sat, Jul 18, priced at $701 found 6 days ago
Sun, Aug 23 - Mon, Aug 31
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$708 Roundtrip, found 1 day ago
$708
Roundtrip
found 1 day ago
Select Icelandair flight, departing Sun, Aug 23 from Keflavik Intl. to Seattle - Tacoma Intl., returning Mon, Aug 31, priced at $708 found 1 day ago
Fri, Sep 25 - Tue, Sep 29
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$713 Roundtrip, found 5 days ago
$713
Roundtrip
found 5 days ago
Select Icelandair flight, departing Fri, Sep 25 from Keflavik Intl. to Seattle - Tacoma Intl., returning Tue, Sep 29, priced at $713 found 5 days ago
Sun, Aug 23 - Mon, Aug 31
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$720 Roundtrip, found 1 day ago
$720
Roundtrip
found 1 day ago
Select Icelandair flight, departing Sun, Aug 23 from Keflavik Intl. to Seattle - Tacoma Intl., returning Mon, Aug 31, priced at $720 found 1 day ago
Tue, Sep 22 - Sat, Sep 26
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$736 Roundtrip, found 1 day ago
$736
Roundtrip
found 1 day ago
Select Icelandair flight, departing Tue, Sep 22 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sat, Sep 26, priced at $736 found 1 day ago
Sat, Sep 26 - Wed, Sep 30
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$741 Roundtrip, found 5 days ago
$741
Roundtrip
found 5 days ago
Select Icelandair flight, departing Sat, Sep 26 from Keflavik Intl. to Seattle - Tacoma Intl., returning Wed, Sep 30, priced at $741 found 5 days ago
Tue, Sep 22 - Sat, Sep 26
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$748 Roundtrip, found 1 day ago
$748
Roundtrip
found 1 day ago
Select Icelandair flight, departing Tue, Sep 22 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sat, Sep 26, priced at $748 found 1 day ago
Mon, Aug 31 - Fri, Sep 4
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$751 Roundtrip, found 1 day ago
$751
Roundtrip
found 1 day ago
Select Icelandair flight, departing Mon, Aug 31 from Keflavik Intl. to Seattle - Tacoma Intl., returning Fri, Sep 4, priced at $751 found 1 day ago
Mon, Aug 24 - Thu, Oct 1
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$757 Roundtrip, found 4 days ago
$757
Roundtrip
found 4 days ago
Select Icelandair flight, departing Mon, Aug 24 from Keflavik Intl. to Seattle - Tacoma Intl., returning Thu, Oct 1, priced at $757 found 4 days ago
Tue, Jul 14 - Tue, Jul 28
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$758 Roundtrip, found 6 days ago
$758
Roundtrip
found 6 days ago
Select Icelandair flight, departing Tue, Jul 14 from Keflavik Intl. to Seattle - Tacoma Intl., returning Tue, Jul 28, priced at $758 found 6 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.