$279+ Cheap flights from Seattle (SEA) to Iceland
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — KEF
Jul 12 — Jul 191
Round-trip
1 adult, Economy
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Cheapest flights from Seattle to IcelandExplore the most affordable flight options available from Seattle to Iceland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2026.
Explore the most affordable flight options available from Seattle to Iceland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2026.
This Mytrip deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/118:00 am
SEA
- KEF
2 stops16h 55m
Air Canada
Wed 6/179:15 am
KEF
- SEA
2 stops18h 53m
Air Canada
Deal found 6/8![Air Canada logo]()
$486
This FlightHub deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/811:25 pm
SEA
- KEF
Nonstop7h 35m
Icelandair
Sun 6/1410:40 am
KEF
- SEA
Nonstop8h 05m
Icelandair
Deal found 6/8![Icelandair logo]()
$487
This Flighttix deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1110:52 am
SEA
- KEF
1 stop14h 58m
Multiple Airlines
Wed 6/179:15 am
KEF
- SEA
2 stops36h 07m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$488
This Flightnetwork deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/135:45 am
SEA
- KEF
2 stops44h 00m
Air Canada
Fri 6/199:15 am
KEF
- SEA
2 stops31h 52m
Air Canada
Deal found 6/11![Air Canada logo]()
$491
This Alaska Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/116:35 pm
SEA
- KEF
Nonstop7h 25m
Alaska Airlines
Fri 6/1912:45 pm
KEF
- SEA
Nonstop7h 55m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$494
This United deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/211:20 pm
SEA
- KEF
1 stop26h 10m
Multiple Airlines
Tue 7/79:15 am
KEF
- SEA
2 stops31h 52m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$501
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/198:00 am
SEA
- KEF
1 stop17h 30m
United Airlines
Mon 6/2210:00 am
KEF
- SEA
2 stops37h 09m
United Airlines
Deal found 6/9![United Airlines logo]()
$503
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/111:00 pm
SEA
- KEF
1 stop12h 30m
United Airlines
Thu 6/189:50 am
KEF
- SEA
2 stops39h 09m
United Airlines
Deal found 6/11![United Airlines logo]()
$504
This United deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1211:20 pm
SEA
- KEF
1 stop26h 10m
Multiple Airlines
Thu 6/189:50 am
KEF
- SEA
2 stops31h 17m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$506
This United Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/87:05 am
SEA
- KEF
2 stops18h 45m
United Airlines
Sun 6/1412:00 pm
KEF
- SEA
1 stop17h 56m
United Airlines
Deal found 6/7![United Airlines logo]()
$507
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1210:52 am
SEA
- KEF
2 stops14h 38m
United Airlines
Mon 6/1510:00 am
KEF
- SEA
2 stops40h 18m
United Airlines
Deal found 6/8![United Airlines logo]()
$508
Best flights from Seattle to IcelandDiscover carefully curated flight deals from Seattle to Iceland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2026.
Discover carefully curated flight deals from Seattle to Iceland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2026.
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2411:20 pm
SEA
- KEF
1 stop26h 10m
United Airlines
Wed 7/112:00 pm
KEF
- SEA
1 stop14h 06m
United Airlines
Deal found 6/11![United Airlines logo]()
$509
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/195:30 am
SEA
- KEF
1 stop19h 10m
Delta
Sat 7/259:30 am
KEF
- SEA
1 stop14h 30m
Delta
Deal found 6/8![Delta logo]()
$519
This KLM deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/239:05 am
SEA
- KEF
1 stop14h 55m
KLM
Fri 7/319:30 am
KEF
- SEA
1 stop14h 30m
KLM
Deal found 6/8![KLM logo]()
$519
This KLM deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/239:05 am
SEA
- KEF
1 stop14h 55m
Multiple Airlines
Fri 7/319:30 am
KEF
- SEA
1 stop21h 28m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$519
This Virgin Atlantic deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2811:59 am
SEA
- KEF
1 stop12h 01m
Virgin Atlantic
Sun 10/49:30 am
KEF
- SEA
1 stop17h 46m
Virgin Atlantic
Deal found 6/10![Virgin Atlantic logo]()
$626
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/67:00 am
SEA
- KEF
1 stop18h 50m
United Airlines
Mon 7/1310:00 am
KEF
- SEA
1 stop18h 07m
United Airlines
Deal found 6/11![United Airlines logo]()
$517
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/198:00 am
SEA
- KEF
1 stop17h 45m
United Airlines
Sat 7/2510:00 am
KEF
- SEA
1 stop18h 07m
United Airlines
Deal found 6/11![United Airlines logo]()
$520
This Delta deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:30 am
SEA
- KEF
1 stop19h 10m
Delta
Fri 8/289:30 am
KEF
- SEA
1 stop18h 20m
Delta
Deal found 6/9![Delta logo]()
$580
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2812:05 pm
SEA
- KEF
1 stop11h 55m
Delta
Sat 8/89:30 am
KEF
- SEA
1 stop14h 16m
Delta
Deal found 6/8![Delta logo]()
$580
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:59 am
SEA
- KEF
1 stop12h 01m
Delta
Fri 10/211:25 am
KEF
- SEA
1 stop15h 46m
Delta
Deal found 6/11![Delta logo]()
$627
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:45 am
SEA
- KEF
1 stop14h 45m
Delta
Wed 9/309:30 am
KEF
- SEA
1 stop17h 46m
Delta
Deal found 6/8![Delta logo]()
$640
Last-minute flights from Seattle to IcelandDiscover last-minute flight deals from Seattle to Iceland. Data last updated June 12, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Iceland. Data last updated June 12, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/118:00 am
SEA
- KEF
2 stops16h 55m
Air Canada
Wed 6/179:15 am
KEF
- SEA
2 stops18h 53m
Air Canada
Deal found 6/8![Air Canada logo]()
$486
This Flighttix deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1110:52 am
SEA
- KEF
1 stop14h 58m
Multiple Airlines
Wed 6/179:15 am
KEF
- SEA
2 stops36h 07m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$488
This Alaska Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/116:35 pm
SEA
- KEF
Nonstop7h 25m
Alaska Airlines
Fri 6/1912:45 pm
KEF
- SEA
Nonstop7h 55m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$494
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/111:00 pm
SEA
- KEF
1 stop12h 30m
United Airlines
Thu 6/189:50 am
KEF
- SEA
2 stops39h 09m
United Airlines
Deal found 6/11![United Airlines logo]()
$504
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1110:52 am
SEA
- KEF
1 stop14h 58m
United Airlines
Wed 6/1712:00 pm
KEF
- SEA
1 stop28h 40m
United Airlines
Deal found 6/8![United Airlines logo]()
$507
This United deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1211:20 pm
SEA
- KEF
1 stop26h 10m
Multiple Airlines
Thu 6/189:50 am
KEF
- SEA
2 stops31h 17m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$506
This United Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1210:52 am
SEA
- KEF
2 stops14h 38m
United Airlines
Mon 6/1510:00 am
KEF
- SEA
2 stops40h 18m
United Airlines
Deal found 6/8![United Airlines logo]()
$508
This Flightnetwork deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/135:45 am
SEA
- KEF
2 stops44h 00m
Air Canada
Fri 6/199:15 am
KEF
- SEA
2 stops31h 52m
Air Canada
Deal found 6/11![Air Canada logo]()
$491
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/135:15 pm
SEA
- KEF
1 stop32h 35m
United Airlines
Fri 6/1911:30 am
KEF
- SEA
1 stop16h 16m
United Airlines
Deal found 6/11![United Airlines logo]()
$510
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/198:00 am
SEA
- KEF
1 stop17h 30m
United Airlines
Mon 6/2210:00 am
KEF
- SEA
2 stops37h 09m
United Airlines
Deal found 6/9![United Airlines logo]()
$503
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/227:54 pm
SEA
- KEF
2 stops29h 56m
United Airlines
Wed 7/112:00 pm
KEF
- SEA
1 stop14h 06m
United Airlines
Deal found 6/12![United Airlines logo]()
$509
This United deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/211:20 pm
SEA
- KEF
1 stop26h 10m
Multiple Airlines
Tue 7/79:15 am
KEF
- SEA
2 stops31h 52m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$501
One-way flights from Seattle to IcelandSearch for one-way flight options from Seattle to Iceland. Find affordable one-way fares based on user searches. Data last updated June 12, 2026.
Search for one-way flight options from Seattle to Iceland. Find affordable one-way fares based on user searches. Data last updated June 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:48 am
SEA
- KEF
3 stops25h 27m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:41 pm
SEA
- KEF
2 stops28h 59m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$359
This Trip.com deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2410:30 am
SEA
- KEF
1 stop14h 10m
WestJet
Deal found 6/9![WestJet logo]()
$365
This Trip.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1510:30 am
SEA
- KEF
1 stop14h 10m
WestJet
Deal found 6/11![WestJet logo]()
$371
This Trip.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3010:30 am
SEA
- KEF
1 stop14h 10m
WestJet
Deal found 6/10![WestJet logo]()
$372
This Kiwi.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/297:00 am
SEA
- KEF
3 stops16h 55m
WestJet
Deal found 6/10![WestJet logo]()
$376
This Kiwi.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/297:41 pm
SEA
- KEF
2 stops28h 59m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$379
This Kiwi.com deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/107:35 pm
SEA
- KEF
1 stop29h 05m
WestJet
Deal found 6/9![WestJet logo]()
$381
This Kiwi.com deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/127:35 pm
SEA
- KEF
1 stop29h 05m
WestJet
Deal found 6/9![WestJet logo]()
$382
This Kiwi.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/227:00 am
SEA
- KEF
3 stops16h 55m
WestJet
Deal found 6/10![WestJet logo]()
$383
This Mytrip deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:45 am
SEA
- KEF
2 stops18h 55m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$384
Find flight deals from Seattle to Iceland
Keep the following information in mind while searching for Seattle to Iceland flight deals. Data was last updated June 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $494 (Alaska Airlines) |
One-way from | $279 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $623 |
Good round-trip deal | $615 or less |
Good one-way deal | $318 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Iceland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2026.
Use the filters below to find and compare flights from Seattle to Iceland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleReykjavik
SEA - KEF
SEAKEF
Seattle/Tacoma Intl
Wed 6/24
11:20 pm-8:30 am
1 stop26h 10m
Reykjavik Keflavik Intl
Wed 7/1
12:00 pm-7:06 pm
1 stop14h 06m
$509
SeattleReykjavik
SEA - KEF
SEAKEF
Seattle/Tacoma Intl
Mon 7/6
7:00 am-8:50 am
1 stop18h 50m
Reykjavik Keflavik Intl
Mon 7/13
10:00 am-9:07 pm
1 stop18h 07m
$517
SeattleReykjavik
SEA - KEF
SEAKEF
Seattle/Tacoma Intl
Sun 7/19
5:30 am-7:40 am
1 stop19h 10m
Reykjavik Keflavik Intl
Sat 7/25
9:30 am-5:00 pm
1 stop14h 30m
$519
SeattleReykjavik
SEA - KEF
SEAKEF
Seattle/Tacoma Intl
Thu 7/23
9:05 am-7:00 am
1 stop14h 55m
Reykjavik Keflavik Intl
Fri 7/31
9:30 am-5:00 pm
1 stop14h 30m
$519
SeattleReykjavik
SEA - KEF
SEAKEF
Seattle/Tacoma Intl
Thu 7/23
9:05 am-7:00 am
1 stop14h 55m
Reykjavik Keflavik Intl
Fri 7/31
9:30 am-11:58 pm
1 stop21h 28m
$519
SeattleReykjavik
SEA - KEF
SEAKEF
Seattle/Tacoma Intl
Sun 7/19
8:00 am-8:45 am
1 stop17h 45m
Reykjavik Keflavik Intl
Sat 7/25
10:00 am-9:07 pm
1 stop18h 07m
$520
SeattleReykjavik
SEA - KEF
SEAKEF
Seattle/Tacoma Intl
Wed 7/15
5:30 am-7:40 am
1 stop19h 10m
Reykjavik Keflavik Intl
Fri 8/28
9:30 am-8:50 pm
1 stop18h 20m
$580
Quickest round-trip
SeattleReykjavik
SEA - KEF
SEAKEF
Seattle/Tacoma Intl
Tue 7/28
12:05 pm-7:00 am
1 stop11h 55m
Reykjavik Keflavik Intl
Sat 8/8
9:30 am-4:46 pm
1 stop14h 16m
$580
SeattleReykjavik
SEA - KEF
SEAKEF
Seattle/Tacoma Intl
Mon 9/28
11:59 am-7:00 am
1 stop12h 01m
Reykjavik Keflavik Intl
Sun 10/4
9:30 am-8:16 pm
1 stop17h 46m
$626
SeattleReykjavik
SEA - KEF
SEAKEF
Seattle/Tacoma Intl
Fri 9/25
11:59 am-7:00 am
1 stop12h 01m
Reykjavik Keflavik Intl
Fri 10/2
11:25 am-8:11 pm
1 stop15h 46m
$627
Showing 1-10 of 22 resultsSorted by cheapest first
Best time to book a flight from Seattle to Iceland
Have a flexible travel schedule? Discover the best time to fly to Iceland from Seattle with our price prediction graph.
SEA-KEF
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Iceland
SEA-IS0
SEA-KEF
What is the cheapest month to book a flight from Seattle to Iceland?
Currently, October is the cheapest month in which you can book a flight from Seattle to Iceland (average of $361). Flying from Seattle to Iceland in June is currently the most expensive (average of $414). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SEA to IS?
Find hourly flight availability from Seattle to Iceland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Iceland as you normally would.
Weekly flight availability from Seattle to Iceland
Explore weekly flight availability from Seattle to Iceland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2026.
The most flights from SEA to IS0 are scheduled on a Monday (7 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (4 on average).
How far ahead should I book a flight from Seattle to Iceland?
The best time to book flights from Seattle to Iceland is 57 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Reviews of airlines servicing Iceland
Get insights into the airlines that provide service to Iceland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Iceland. Reviews last updated June 12, 2026.
Read through reviews of airlines operating flights from Seattle to Iceland, such as Alaska Airlines,United Airlines, andAir Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Entertainment
7.0
Crew
8.5
Boarding
8.1
Overall
7.9
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Comfort
7.8
Entertainment
7.0
Crew
8.5
Boarding
8.1
Overall
7.9
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Comfort
7.8
Entertainment
7.0
Crew
8.5
Boarding
8.1
Overall
7.9
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Comfort
7.8
Entertainment
7.0
Crew
8.5
Boarding
8.1
Overall
7.9
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Comfort
7.8
Entertainment
7.0
Crew
8.5
Boarding
8.1
Overall
7.9
Food
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Related info for your journey
Find useful and relevant information for your journey from Seattle to Iceland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Seattle to Iceland
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Iceland by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Iceland by cabin class
Find flights from Seattle to Iceland, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Iceland flights
Browse other Seattle and Iceland flight options. Last updated on June 12, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Seattle to Iceland
Discover the top 2 airlines that operate flights from Seattle to Iceland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$374 | Average$583 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$547 | Average$810 | FlexibilityNo cancel fee | On-time75% |