Icelandair Flight 681 Deals & Information (2026/2027)

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Icelandair Flight 681 Route Deals From $519

The cheapest prices found with in the last 7 days for return flights were $683 and $519 for one-way flights to Seattle - Tacoma Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Oct 16 - Thu, Oct 22
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$683 Roundtrip, found 16 hours ago
$683
Roundtrip
found 16 hours ago
Select Icelandair flight, departing Fri, Oct 16 from Keflavik Intl. to Seattle - Tacoma Intl., returning Thu, Oct 22, priced at $683 found 16 hours ago
Sun, Jan 24 - Sun, Feb 7
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$699 Roundtrip, found 3 days ago
$699
Roundtrip
found 3 days ago
Select Icelandair flight, departing Sun, Jan 24 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sun, Feb 7, priced at $699 found 3 days ago
Sat, Jun 5 - Sat, Jun 12
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$700 Roundtrip, found 3 days ago
$700
Roundtrip
found 3 days ago
Select Icelandair flight, departing Sat, Jun 5 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sat, Jun 12, priced at $700 found 3 days ago
Wed, Nov 18 - Sat, Nov 28
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$709 Roundtrip, found 3 days ago
$709
Roundtrip
found 3 days ago
Select Icelandair flight, departing Wed, Nov 18 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sat, Nov 28, priced at $709 found 3 days ago
Sat, Dec 12 - Wed, Dec 23
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$711 Roundtrip, found 4 days ago
$711
Roundtrip
found 4 days ago
Select Icelandair flight, departing Sat, Dec 12 from Keflavik Intl. to Seattle - Tacoma Intl., returning Wed, Dec 23, priced at $711 found 4 days ago
Sat, Nov 21 - Sat, Nov 28
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$722 Roundtrip, found 3 days ago
$722
Roundtrip
found 3 days ago
Select Icelandair flight, departing Sat, Nov 21 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sat, Nov 28, priced at $722 found 3 days ago
Wed, Nov 18 - Mon, Nov 30
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$734 Roundtrip, found 2 days ago
$734
Roundtrip
found 2 days ago
Select Icelandair flight, departing Wed, Nov 18 from Keflavik Intl. to Seattle - Tacoma Intl., returning Mon, Nov 30, priced at $734 found 2 days ago
Sat, Jun 5 - Sat, Jun 12
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$735 Roundtrip, found 3 days ago
$735
Roundtrip
found 3 days ago
Select Icelandair flight, departing Sat, Jun 5 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sat, Jun 12, priced at $735 found 3 days ago
Mon, Oct 26 - Mon, Nov 2
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$744 Roundtrip, found 6 days ago
$744
Roundtrip
found 6 days ago
Select Icelandair flight, departing Mon, Oct 26 from Keflavik Intl. to Seattle - Tacoma Intl., returning Mon, Nov 2, priced at $744 found 6 days ago
Tue, Oct 20 - Sat, Oct 24
KEF
Keflavik Intl.
SEA
Seattle - Tacoma Intl.
$765 Roundtrip, found 6 days ago
$765
Roundtrip
found 6 days ago
Select Icelandair flight, departing Tue, Oct 20 from Keflavik Intl. to Seattle - Tacoma Intl., returning Sat, Oct 24, priced at $765 found 6 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.