Icelandair Flight 681 Deals & Information (2025/2026)

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Icelandair Flight 681 Route Deals From $451

The cheapest prices found with in the last 7 days for return flights were $596 and $451 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Apr 14 - Tue, Apr 22
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$596 Roundtrip, found 4 hours ago
$596
Roundtrip
found 4 hours ago
Select Icelandair flight, departing Mon, Apr 14 from Keflavik Intl. to Seattle - Tacoma Intl., returning Tue, Apr 22, priced at $596 found 4 hours ago
Tue, Apr 15 - Sun, Apr 20
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$606 Roundtrip, found 2 hours ago
$606
Roundtrip
found 2 hours ago
Select Icelandair flight, departing Tue, Apr 15 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sun, Apr 20, priced at $606 found 2 hours ago
Wed, May 7 - Wed, May 14
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$617 Roundtrip, found 6 days ago
$617
Roundtrip
found 6 days ago
Select Icelandair flight, departing Wed, May 7 from Keflavik Intl. to Seattle - Tacoma Intl., returning Wed, May 14, priced at $617 found 6 days ago
Thu, May 8 - Fri, May 23
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$621 Roundtrip, found 23 hours ago
$621
Roundtrip
found 23 hours ago
Select Icelandair flight, departing Thu, May 8 from Keflavik Intl. to Seattle - Tacoma Intl., returning Fri, May 23, priced at $621 found 23 hours ago
Wed, Oct 1 - Sun, Oct 5
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$627 Roundtrip, found 23 hours ago
$627
Roundtrip
found 23 hours ago
Select Icelandair flight, departing Wed, Oct 1 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sun, Oct 5, priced at $627 found 23 hours ago
Sat, May 24 - Sun, Jun 1
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$627 Roundtrip, found 6 days ago
$627
Roundtrip
found 6 days ago
Select Icelandair flight, departing Sat, May 24 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sun, Jun 1, priced at $627 found 6 days ago
Tue, Sep 2 - Thu, Sep 11
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$628 Roundtrip, found 2 days ago
$628
Roundtrip
found 2 days ago
Select Icelandair flight, departing Tue, Sep 2 from Keflavik Intl. to Seattle - Tacoma Intl., returning Thu, Sep 11, priced at $628 found 2 days ago
Thu, Jun 12 - Sun, Jun 22
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$631 Roundtrip, found 22 hours ago
$631
Roundtrip
found 22 hours ago
Select Icelandair flight, departing Thu, Jun 12 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sun, Jun 22, priced at $631 found 22 hours ago
Sat, May 24 - Sun, Jun 1
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$636 Roundtrip, found 6 days ago
$636
Roundtrip
found 6 days ago
Select Icelandair flight, departing Sat, May 24 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sun, Jun 1, priced at $636 found 6 days ago
Mon, May 26 - Fri, May 30
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$638 Roundtrip, found 4 days ago
$638
Roundtrip
found 4 days ago
Select Icelandair flight, departing Mon, May 26 from Keflavik Intl. to Seattle - Tacoma Intl., returning Fri, May 30, priced at $638 found 4 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.