Icelandair Flight 681 Deals & Information (2026/2027)

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Icelandair Flight 681 Route Deals From $503

The cheapest prices found with in the last 7 days for return flights were $662 and $503 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 - Thu, Apr 16
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$662 Roundtrip, found 4 days ago
$662
Roundtrip
found 4 days ago
Select Icelandair flight, departing Fri, Apr 10 from Keflavik Intl. to Seattle - Tacoma Intl., returning Thu, Apr 16, priced at $662 found 4 days ago
Mon, Mar 16 - Tue, Mar 24
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$663 Roundtrip, found 3 hours ago
$663
Roundtrip
found 3 hours ago
Select Icelandair flight, departing Mon, Mar 16 from Keflavik Intl. to Seattle - Tacoma Intl., returning Tue, Mar 24, priced at $663 found 3 hours ago
Tue, Dec 8 - Mon, Dec 14
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$664 Roundtrip, found 13 hours ago
$664
Roundtrip
found 13 hours ago
Select Icelandair flight, departing Tue, Dec 8 from Keflavik Intl. to Seattle - Tacoma Intl., returning Mon, Dec 14, priced at $664 found 13 hours ago
Fri, Mar 27 - Mon, Apr 6
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$672 Roundtrip, found 2 days ago
$672
Roundtrip
found 2 days ago
Select Icelandair flight, departing Fri, Mar 27 from Keflavik Intl. to Seattle - Tacoma Intl., returning Mon, Apr 6, priced at $672 found 2 days ago
Fri, May 22 - Fri, Jun 12
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$674 Roundtrip, found 3 days ago
$674
Roundtrip
found 3 days ago
Select Icelandair flight, departing Fri, May 22 from Keflavik Intl. to Seattle - Tacoma Intl., returning Fri, Jun 12, priced at $674 found 3 days ago
Fri, May 22 - Mon, May 25
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$684 Roundtrip, found 2 days ago
$684
Roundtrip
found 2 days ago
Select Icelandair flight, departing Fri, May 22 from Keflavik Intl. to Seattle - Tacoma Intl., returning Mon, May 25, priced at $684 found 2 days ago
Thu, Apr 9 - Sun, Apr 19
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$685 Roundtrip, found 4 days ago
$685
Roundtrip
found 4 days ago
Select Icelandair flight, departing Thu, Apr 9 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sun, Apr 19, priced at $685 found 4 days ago
Sat, May 16 - Fri, May 22
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$686 Roundtrip, found 3 days ago
$686
Roundtrip
found 3 days ago
Select Icelandair flight, departing Sat, May 16 from Keflavik Intl. to Seattle - Tacoma Intl., returning Fri, May 22, priced at $686 found 3 days ago
Fri, Jun 12 - Sat, Jun 20
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$693 Roundtrip, found 2 days ago
$693
Roundtrip
found 2 days ago
Select Icelandair flight, departing Fri, Jun 12 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sat, Jun 20, priced at $693 found 2 days ago
Tue, Aug 25 - Tue, Sep 8
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$707 Roundtrip, found 5 days ago
$707
Roundtrip
found 5 days ago
Select Icelandair flight, departing Tue, Aug 25 from Keflavik Intl. to Seattle - Tacoma Intl., returning Tue, Sep 8, priced at $707 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.