$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 $447 for roundtrip, for the period specified. Prices and availability are subject to change. Additional terms apply.
United
Sat, Jul 19 - Sun, Jul 27
SEA
Seattle
KEF
Reykjavik
$447
Roundtrip
Found 2 days ago
Select United flight, departing Sat, Jul 19 from Seattle to Reykjavik, returning Sun, Jul 27, priced at $447 Found 2 days ago
United
Wed, Jul 16 - Wed, Jul 30
SEA
Seattle
KEF
Reykjavik
$543
Roundtrip
Found 2 days ago
Select United flight, departing Wed, Jul 16 from Seattle to Reykjavik, returning Wed, Jul 30, priced at $543 Found 2 days ago
United
Wed, Jul 16 - Wed, Jul 30
SEA
Seattle
KEF
Reykjavik
$547
Roundtrip
Found 2 days ago
Select United flight, departing Wed, Jul 16 from Seattle to Reykjavik, returning Wed, Jul 30, priced at $547 Found 2 days ago
United
Wed, Jul 16 - Wed, Jul 30
SEA
Seattle
KEF
Reykjavik
$549
Roundtrip
Found 2 days ago
Select United flight, departing Wed, Jul 16 from Seattle to Reykjavik, returning Wed, Jul 30, priced at $549 Found 2 days ago
United
Wed, Jul 16 - Wed, Jul 30
SEA
Seattle
KEF
Reykjavik
$552
Roundtrip
Found 2 days ago
Select United flight, departing Wed, Jul 16 from Seattle to Reykjavik, returning Wed, Jul 30, priced at $552 Found 2 days ago
United
Wed, Jul 16 - Wed, Jul 30
SEA
Seattle
KEF
Reykjavik
$684
Roundtrip
Found 2 days ago
Select United flight, departing Wed, Jul 16 from Seattle to Reykjavik, returning Wed, Jul 30, priced at $684 Found 2 days ago
United
Wed, Jul 16 - Wed, Jul 30
SEA
Seattle
KEF
Reykjavik
$690
Roundtrip
Found 2 days ago
Select United flight, departing Wed, Jul 16 from Seattle to Reykjavik, returning Wed, Jul 30, priced at $690 Found 2 days ago
United
Wed, Jul 16 - Wed, Jul 30
SEA
Seattle
KEF
Reykjavik
$715
Roundtrip
Found 2 days ago
Select United flight, departing Wed, Jul 16 from Seattle to Reykjavik, returning Wed, Jul 30, priced at $715 Found 2 days ago
United
Wed, Jul 16 - Wed, Jul 30
SEA
Seattle
KEF
Reykjavik
$720
Roundtrip
Found 2 days ago
Select United flight, departing Wed, Jul 16 from Seattle to Reykjavik, returning Wed, Jul 30, priced at $720 Found 2 days ago
Flights from Seattle (SEA) to Reykjavik (KEF)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Keflavik Intl.
Distance
5776 km
Average flight time
14 hours 28 mins