$563 Cheap United flights Seattle (SEA) to Reykjavik (KEF)

View $563 flight on Wed, Apr 8, 2026Opens in a new window

$563 Cheap United flights Seattle (SEA) to Reykjavik (KEF)

Prices were available within the past 7 days and start at $563 for one-way flights and $415 for roundtrip, for the period specified. Prices and availability are subject to change. Additional terms apply.
United
Thu, Jun 12 - Thu, Jun 19
SEA
Seattle
KEF
Reykjavik
$415
Roundtrip
Found 23 hours ago
Select United flight, departing Thu, Jun 12 from Seattle to Reykjavik, returning Thu, Jun 19, priced at $415 Found 23 hours ago
United
Thu, Jun 12 - Sat, Jun 21
SEA
Seattle
KEF
Reykjavik
$421
Roundtrip
Found 23 hours ago
Select United flight, departing Thu, Jun 12 from Seattle to Reykjavik, returning Sat, Jun 21, priced at $421 Found 23 hours ago
United
Thu, Jun 12 - Sun, Jun 22
SEA
Seattle
KEF
Reykjavik
$445
Roundtrip
Found 23 hours ago
Select United flight, departing Thu, Jun 12 from Seattle to Reykjavik, returning Sun, Jun 22, priced at $445 Found 23 hours ago
United
Sat, Jul 19 - Sun, Jul 27
SEA
Seattle
KEF
Reykjavik
$447
Roundtrip
Found 4 days ago
Select United flight, departing Sat, Jul 19 from Seattle to Reykjavik, returning Sun, Jul 27, priced at $447 Found 4 days ago
United
Wed, Jul 16 - Wed, Jul 30
SEA
Seattle
KEF
Reykjavik
$543
Roundtrip
Found 4 days ago
Select United flight, departing Wed, Jul 16 from Seattle to Reykjavik, returning Wed, Jul 30, priced at $543 Found 4 days ago
United
Wed, Jul 16 - Wed, Jul 30
SEA
Seattle
KEF
Reykjavik
$547
Roundtrip
Found 4 days ago
Select United flight, departing Wed, Jul 16 from Seattle to Reykjavik, returning Wed, Jul 30, priced at $547 Found 4 days ago
United
Wed, Jul 16 - Wed, Jul 30
SEA
Seattle
KEF
Reykjavik
$549
Roundtrip
Found 4 days ago
Select United flight, departing Wed, Jul 16 from Seattle to Reykjavik, returning Wed, Jul 30, priced at $549 Found 4 days ago
United
Wed, Jul 16 - Wed, Jul 30
SEA
Seattle
KEF
Reykjavik
$552
Roundtrip
Found 4 days ago
Select United flight, departing Wed, Jul 16 from Seattle to Reykjavik, returning Wed, Jul 30, priced at $552 Found 4 days ago
United
Fri, Jun 13 - Sat, Jun 21
SEA
Seattle
KEF
Reykjavik
$555
Roundtrip
Found 23 hours ago
Select United flight, departing Fri, Jun 13 from Seattle to Reykjavik, returning Sat, Jun 21, priced at $555 Found 23 hours ago
Flights from Seattle (SEA) to Reykjavik (KEF)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Keflavik Intl.
Airlines serving
Icelandair
Popular airline
Icelandair
Distance
5776 km
Average flight time
14 hours 28 mins