Icelandair Flight FI681 Deals & Information (2025/2026)

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Icelandair Flight 681 Route Deals From $517

The cheapest prices found with in the last 7 days for return flights were $679 and $517 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Nov 21 - Thu, Nov 27
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$679 Roundtrip, found 2 days ago
$679
Roundtrip
found 2 days ago
Select Icelandair flight, departing Fri, Nov 21 from Keflavik Intl. to Seattle - Tacoma Intl., returning Thu, Nov 27, priced at $679 found 2 days ago
Tue, Apr 7 - Sat, Apr 11
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$681 Roundtrip, found 1 day ago
$681
Roundtrip
found 1 day ago
Select Icelandair flight, departing Tue, Apr 7 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sat, Apr 11, priced at $681 found 1 day ago
Tue, Aug 11 - Tue, Aug 18
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$692 Roundtrip, found 2 days ago
$692
Roundtrip
found 2 days ago
Select Icelandair flight, departing Tue, Aug 11 from Keflavik Intl. to Seattle - Tacoma Intl., returning Tue, Aug 18, priced at $692 found 2 days ago
Mon, Jun 22 - Mon, Jul 6
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$702 Roundtrip, found 4 days ago
$702
Roundtrip
found 4 days ago
Select Icelandair flight, departing Mon, Jun 22 from Keflavik Intl. to Seattle - Tacoma Intl., returning Mon, Jul 6, priced at $702 found 4 days ago
Fri, Nov 7 - Tue, Nov 11
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$704 Roundtrip, found 13 hours ago
$704
Roundtrip
found 13 hours ago
Select Icelandair flight, departing Fri, Nov 7 from Keflavik Intl. to Seattle - Tacoma Intl., returning Tue, Nov 11, priced at $704 found 13 hours ago
Wed, Jun 17 - Wed, Jul 1
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$712 Roundtrip, found 4 days ago
$712
Roundtrip
found 4 days ago
Select Icelandair flight, departing Wed, Jun 17 from Keflavik Intl. to Seattle - Tacoma Intl., returning Wed, Jul 1, priced at $712 found 4 days ago
Tue, Aug 11 - Tue, Aug 18
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$714 Roundtrip, found 2 days ago
$714
Roundtrip
found 2 days ago
Select Icelandair flight, departing Tue, Aug 11 from Keflavik Intl. to Seattle - Tacoma Intl., returning Tue, Aug 18, priced at $714 found 2 days ago
Thu, Oct 23 - Thu, Oct 30
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$725 Roundtrip, found 2 days ago
$725
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 $725 found 2 days ago
Thu, Oct 23 - Wed, Oct 29
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$736 Roundtrip, found 2 days ago
$736
Roundtrip
found 2 days ago
Select Icelandair flight, departing Thu, Oct 23 from Keflavik Intl. to Seattle - Tacoma Intl., returning Wed, Oct 29, priced at $736 found 2 days ago
Fri, Feb 27 - Fri, Mar 6
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$765 Roundtrip, found 18 hours ago
$765
Roundtrip
found 18 hours ago
Select Icelandair flight, departing Fri, Feb 27 from Keflavik Intl. to Seattle - Tacoma Intl., returning Fri, Mar 6, priced at $765 found 18 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.