Icelandair Flight 680 Deals & Information (2025/2026)

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 680 Route Deals From $523

The cheapest prices found with in the last 7 days for return flights were $429 and $523 for one-way flights to Keflavik Intl. for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Mar 23 - Fri, Mar 27
SEA
Seattle - Tacoma Intl.
KEF
Keflavik Intl.
$429 Roundtrip, found 20 hours ago
$429
Roundtrip
found 20 hours ago
Select Icelandair flight, departing Mon, Mar 23 from Seattle - Tacoma Intl. to Keflavik Intl., returning Fri, Mar 27, priced at $429 found 20 hours ago
Thu, Feb 26 - Thu, Mar 5
SEA
Seattle - Tacoma Intl.
KEF
Keflavik Intl.
$429 Roundtrip, just found
$429
Roundtrip
just found
Select Icelandair flight, departing Thu, Feb 26 from Seattle - Tacoma Intl. to Keflavik Intl., returning Thu, Mar 5, priced at $429 just found
Fri, May 1 - Sun, May 31
SEA
Seattle - Tacoma Intl.
KEF
Keflavik Intl.
$441 Roundtrip, found 22 hours ago
$441
Roundtrip
found 22 hours ago
Select Icelandair flight, departing Fri, May 1 from Seattle - Tacoma Intl. to Keflavik Intl., returning Sun, May 31, priced at $441 found 22 hours ago
Mon, Mar 23 - Sun, Mar 29
SEA
Seattle - Tacoma Intl.
KEF
Keflavik Intl.
$549 Roundtrip, found 1 day ago
$549
Roundtrip
found 1 day ago
Select Icelandair flight, departing Mon, Mar 23 from Seattle - Tacoma Intl. to Keflavik Intl., returning Sun, Mar 29, priced at $549 found 1 day ago
Sat, Jan 31 - Mon, Feb 9
SEA
Seattle - Tacoma Intl.
KEF
Keflavik Intl.
$549 Roundtrip, found 5 hours ago
$549
Roundtrip
found 5 hours ago
Select Icelandair flight, departing Sat, Jan 31 from Seattle - Tacoma Intl. to Keflavik Intl., returning Mon, Feb 9, priced at $549 found 5 hours ago
Fri, May 1 - Sun, May 31
SEA
Seattle - Tacoma Intl.
KEF
Keflavik Intl.
$561 Roundtrip, found 22 hours ago
$561
Roundtrip
found 22 hours ago
Select Icelandair flight, departing Fri, May 1 from Seattle - Tacoma Intl. to Keflavik Intl., returning Sun, May 31, priced at $561 found 22 hours ago
Thu, Mar 12 - Tue, Mar 17
SEA
Seattle - Tacoma Intl.
KEF
Keflavik Intl.
$579 Roundtrip, found 13 hours ago
$579
Roundtrip
found 13 hours ago
Select Icelandair flight, departing Thu, Mar 12 from Seattle - Tacoma Intl. to Keflavik Intl., returning Tue, Mar 17, priced at $579 found 13 hours ago
Sun, Jan 11 - Mon, Jan 19
SEA
Seattle - Tacoma Intl.
KEF
Keflavik Intl.
$589 Roundtrip, found 22 hours ago
$589
Roundtrip
found 22 hours ago
Select Icelandair flight, departing Sun, Jan 11 from Seattle - Tacoma Intl. to Keflavik Intl., returning Mon, Jan 19, priced at $589 found 22 hours ago
Sat, Mar 7 - Sat, Mar 14
SEA
Seattle - Tacoma Intl.
KEF
Keflavik Intl.
$589 Roundtrip, found 1 hour ago
$589
Roundtrip
found 1 hour ago
Select Icelandair flight, departing Sat, Mar 7 from Seattle - Tacoma Intl. to Keflavik Intl., returning Sat, Mar 14, priced at $589 found 1 hour ago
Fri, May 29 - Mon, Jun 1
SEA
Seattle - Tacoma Intl.
KEF
Keflavik Intl.
$591 Roundtrip, found 1 day ago
$591
Roundtrip
found 1 day ago
Select Icelandair flight, departing Fri, May 29 from Seattle - Tacoma Intl. to Keflavik Intl., returning Mon, Jun 1, priced at $591 found 1 day ago
Thu, Jan 15 - Sun, Jan 18
SEA
Seattle - Tacoma Intl.
KEF
Keflavik Intl.
$595 Roundtrip, found 12 hours ago
$595
Roundtrip
found 12 hours ago
Select Icelandair flight, departing Thu, Jan 15 from Seattle - Tacoma Intl. to Keflavik Intl., returning Sun, Jan 18, priced at $595 found 12 hours ago
Fri, Jan 16 - Sun, Jan 18
SEA
Seattle - Tacoma Intl.
KEF
Keflavik Intl.
$599 Roundtrip, found 22 hours ago
$599
Roundtrip
found 22 hours ago
Select Icelandair flight, departing Fri, Jan 16 from Seattle - Tacoma Intl. to Keflavik Intl., returning Sun, Jan 18, priced at $599 found 22 hours ago
Wed, Apr 8 - Sat, Apr 18
SEA
Seattle - Tacoma Intl.
KEF
Keflavik Intl.
$599 Roundtrip, found 1 hour ago
$599
Roundtrip
found 1 hour ago
Select Icelandair flight, departing Wed, Apr 8 from Seattle - Tacoma Intl. to Keflavik Intl., returning Sat, Apr 18, priced at $599 found 1 hour ago
Sat, May 16 - Sat, Jun 13
SEA
Seattle - Tacoma Intl.
KEF
Keflavik Intl.
$601 Roundtrip, found 2 days ago
$601
Roundtrip
found 2 days ago
Select Icelandair flight, departing Sat, May 16 from Seattle - Tacoma Intl. to Keflavik Intl., returning Sat, Jun 13, priced at $601 found 2 days ago
Sun, Feb 15 - Mon, Feb 23
SEA
Seattle - Tacoma Intl.
KEF
Keflavik Intl.
$613 Roundtrip, found 2 days ago
$613
Roundtrip
found 2 days ago
Select Icelandair flight, departing Sun, Feb 15 from Seattle - Tacoma Intl. to Keflavik Intl., returning Mon, Feb 23, priced at $613 found 2 days ago
Mon, Apr 6 - Mon, Apr 13
SEA
Seattle - Tacoma Intl.
KEF
Keflavik Intl.
$614 Roundtrip, found 5 hours ago
$614
Roundtrip
found 5 hours ago
Select Icelandair flight, departing Mon, Apr 6 from Seattle - Tacoma Intl. to Keflavik Intl., returning Mon, Apr 13, priced at $614 found 5 hours ago