Icelandair Flight 681 Deals & Information (2026/2027)

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 $513

The cheapest prices found with in the last 7 days for return flights were $565 and $513 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jun 18 - Sat, Jun 27
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$565 Roundtrip, found 3 days ago
$565
Roundtrip
found 3 days ago
Select Icelandair flight, departing Thu, Jun 18 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sat, Jun 27, priced at $565 found 3 days ago
Mon, Jun 22 - Thu, Jul 9
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$627 Roundtrip, found 1 day ago
$627
Roundtrip
found 1 day ago
Select Icelandair flight, departing Mon, Jun 22 from Keflavik Intl. to Seattle - Tacoma Intl., returning Thu, Jul 9, priced at $627 found 1 day ago
Sat, Jun 27 - Tue, Jul 7
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$628 Roundtrip, found 21 hours ago
$628
Roundtrip
found 21 hours ago
Select Icelandair flight, departing Sat, Jun 27 from Keflavik Intl. to Seattle - Tacoma Intl., returning Tue, Jul 7, priced at $628 found 21 hours ago
Sat, Jun 27 - Wed, Jul 8
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$630 Roundtrip, found 6 days ago
$630
Roundtrip
found 6 days ago
Select Icelandair flight, departing Sat, Jun 27 from Keflavik Intl. to Seattle - Tacoma Intl., returning Wed, Jul 8, priced at $630 found 6 days ago
Thu, Jun 18 - Sat, Jun 27
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$638 Roundtrip, found 3 days ago
$638
Roundtrip
found 3 days ago
Select Icelandair flight, departing Thu, Jun 18 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sat, Jun 27, priced at $638 found 3 days ago
Wed, Jun 3 - Sat, Jun 27
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$640 Roundtrip, found 1 day ago
$640
Roundtrip
found 1 day ago
Select Icelandair flight, departing Wed, Jun 3 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sat, Jun 27, priced at $640 found 1 day ago
Mon, Jun 15 - Sat, Jun 27
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$640 Roundtrip, found 13 hours ago
$640
Roundtrip
found 13 hours ago
Select Icelandair flight, departing Mon, Jun 15 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sat, Jun 27, priced at $640 found 13 hours ago
Fri, May 29 - Sun, Jun 7
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$648 Roundtrip, found 4 days ago
$648
Roundtrip
found 4 days ago
Select Icelandair flight, departing Fri, May 29 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sun, Jun 7, priced at $648 found 4 days ago
Sun, May 24 - Sun, May 31
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$650 Roundtrip, found 13 hours ago
$650
Roundtrip
found 13 hours ago
Select Icelandair flight, departing Sun, May 24 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sun, May 31, priced at $650 found 13 hours ago
Sat, May 23 - Sun, May 31
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$662 Roundtrip, found 2 days ago
$662
Roundtrip
found 2 days ago
Select Icelandair flight, departing Sat, May 23 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sun, May 31, priced at $662 found 2 days ago
Sun, May 24 - Sun, May 31
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$662 Roundtrip, found 13 hours ago
$662
Roundtrip
found 13 hours ago
Select Icelandair flight, departing Sun, May 24 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sun, May 31, priced at $662 found 13 hours ago
Thu, Oct 1 - Fri, Oct 9
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$674 Roundtrip, found 3 days ago
$674
Roundtrip
found 3 days ago
Select Icelandair flight, departing Thu, Oct 1 from Keflavik Intl. to Seattle - Tacoma Intl., returning Fri, Oct 9, priced at $674 found 3 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.