Icelandair Flight FI681 Deals & Information (2025/2026)

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 $499

The cheapest prices found with in the last 7 days for return flights were $653 and $499 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Apr 10 - Sun, Apr 19
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$653 Roundtrip, found 6 days ago
$653
Roundtrip
found 6 days ago
Select Icelandair flight, departing Fri, Apr 10 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sun, Apr 19, priced at $653 found 6 days ago
Thu, Oct 23 - Thu, Oct 30
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$667 Roundtrip, found 2 days ago
$667
Roundtrip
found 2 days ago
Select Icelandair flight, departing Thu, Oct 23 from Keflavik Intl. to Seattle - Tacoma Intl., returning Thu, Oct 30, priced at $667 found 2 days ago
Thu, Sep 11 - Fri, Sep 19
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$686 Roundtrip, found 5 days ago
$686
Roundtrip
found 5 days ago
Select Icelandair flight, departing Thu, Sep 11 from Keflavik Intl. to Seattle - Tacoma Intl., returning Fri, Sep 19, priced at $686 found 5 days ago
Sun, Aug 31 - Tue, Sep 9
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$700 Roundtrip, found 2 days ago
$700
Roundtrip
found 2 days ago
Select Icelandair flight, departing Sun, Aug 31 from Keflavik Intl. to Seattle - Tacoma Intl., returning Tue, Sep 9, priced at $700 found 2 days ago
Thu, Sep 11 - Fri, Sep 19
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$710 Roundtrip, found 5 days ago
$710
Roundtrip
found 5 days ago
Select Icelandair flight, departing Thu, Sep 11 from Keflavik Intl. to Seattle - Tacoma Intl., returning Fri, Sep 19, priced at $710 found 5 days ago
Sat, Aug 23 - Sat, Sep 6
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$712 Roundtrip, found 4 days ago
$712
Roundtrip
found 4 days ago
Select Icelandair flight, departing Sat, Aug 23 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sat, Sep 6, priced at $712 found 4 days ago
Mon, Sep 15 - Fri, Sep 19
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$714 Roundtrip, found 4 hours ago
$714
Roundtrip
found 4 hours ago
Select Icelandair flight, departing Mon, Sep 15 from Keflavik Intl. to Seattle - Tacoma Intl., returning Fri, Sep 19, priced at $714 found 4 hours ago
Wed, Sep 17 - Sun, Sep 21
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$724 Roundtrip, found 2 days ago
$724
Roundtrip
found 2 days ago
Select Icelandair flight, departing Wed, Sep 17 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sun, Sep 21, priced at $724 found 2 days ago
Sun, Aug 3 - Fri, Aug 15
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$725 Roundtrip, found 5 days ago
$725
Roundtrip
found 5 days ago
Select Icelandair flight, departing Sun, Aug 3 from Keflavik Intl. to Seattle - Tacoma Intl., returning Fri, Aug 15, priced at $725 found 5 days ago
Fri, Sep 19 - Sat, Oct 4
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$726 Roundtrip, found 3 hours ago
$726
Roundtrip
found 3 hours ago
Select Icelandair flight, departing Fri, Sep 19 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sat, Oct 4, priced at $726 found 3 hours 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.