Cheap Flights from Seattle (SEA) to Reykjavik (KEF) from HK$3,769~

View HK$3,769 flight on Mon, 24 Nov 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Reykjavik–Keflavik Intl. Airport (KEF)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Find Cheap Flights from Seattle (SEA) to Reykjavik (KEF)

Prices were available within the past 7 days and start at HK$3,769 for one-way flights and HK$4,929 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Wed, 10 Dec - Mon, 15 Dec
SEA
Seattle
KEF
Reykjavik
HK$4,929 Return, found 1 day ago
HK$4,929
Return
found 1 day ago
Select Icelandair flight, departing Wed, 10 Dec from Seattle to Reykjavik, returning Mon, 15 Dec, priced at HK$4,929 found 1 day ago
Icelandair
Wed, 10 Dec - Tue, 16 Dec
SEA
Seattle
KEF
Reykjavik
HK$5,039 Return, found 1 day ago
HK$5,039
Return
found 1 day ago
Select Icelandair flight, departing Wed, 10 Dec from Seattle to Reykjavik, returning Tue, 16 Dec, priced at HK$5,039 found 1 day ago
Lufthansa
Fri, 15 May - Fri, 22 May
SEA
Seattle
KEF
Reykjavik
HK$5,874 Return, found 3 days ago
HK$5,874
Return
found 3 days ago
Select Lufthansa flight, departing Fri, 15 May from Seattle to Reykjavik, returning Fri, 22 May, priced at HK$5,874 found 3 days ago
Lufthansa
Fri, 15 May - Fri, 22 May
SEA
Seattle
KEF
Reykjavik
HK$5,998 Return, found 3 days ago
HK$5,998
Return
found 3 days ago
Select Lufthansa flight, departing Fri, 15 May from Seattle to Reykjavik, returning Fri, 22 May, priced at HK$5,998 found 3 days ago
Lufthansa
Fri, 15 May - Fri, 22 May
SEA
Seattle
KEF
Reykjavik
HK$6,022 Return, found 3 days ago
HK$6,022
Return
found 3 days ago
Select Lufthansa flight, departing Fri, 15 May from Seattle to Reykjavik, returning Fri, 22 May, priced at HK$6,022 found 3 days ago
Icelandair
Thu, 11 Dec - Mon, 15 Dec
SEA
Seattle
KEF
Reykjavik
HK$6,089 Return, found 1 day ago
HK$6,089
Return
found 1 day ago
Select Icelandair flight, departing Thu, 11 Dec from Seattle to Reykjavik, returning Mon, 15 Dec, priced at HK$6,089 found 1 day ago
Lufthansa
Fri, 15 May - Fri, 22 May
SEA
Seattle
KEF
Reykjavik
HK$6,137 Return, found 3 days ago
HK$6,137
Return
found 3 days ago
Select Lufthansa flight, departing Fri, 15 May from Seattle to Reykjavik, returning Fri, 22 May, priced at HK$6,137 found 3 days ago
United
Fri, 15 May - Fri, 22 May
SEA
Seattle
KEF
Reykjavik
HK$7,541 Return, found 3 days ago
HK$7,541
Return
found 3 days ago
Select United flight, departing Fri, 15 May from Seattle to Reykjavik, returning Fri, 22 May, priced at HK$7,541 found 3 days ago
Delta
Fri, 15 May - Fri, 22 May
SEA
Seattle
KEF
Reykjavik
HK$8,057 Return, found 3 days ago
HK$8,057
Return
found 3 days ago
Select Delta flight, departing Fri, 15 May from Seattle to Reykjavik, returning Fri, 22 May, priced at HK$8,057 found 3 days ago
British Airways
Sat, 13 Dec - Thu, 18 Dec
SEA
Seattle
KEF
Reykjavik
HK$8,985 Return, found 1 day ago
HK$8,985
Return
found 1 day ago
Select British Airways flight, departing Sat, 13 Dec from Seattle to Reykjavik, returning Thu, 18 Dec, priced at HK$8,985 found 1 day ago

Find the cheapest month to fly from Seattle (SEA) to Reykjavik (KEF)

October is typically the cheapest month to fly

From HK$3,006 - HK$6,981 per traveller.

Frequently asked questions

How much is a flight from Sea-Tac Airport to Reykjavík–Keflavík Airport?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price available for a round-trip flight from SEA to Reykjavík–Keflavík Airport was HK$4,929. Fares this good don't last long, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SEA to Keflavik Intl. Airport (KEF)?
Each air carrier has its own terms and conditions. If you do decide to cancel, follow the instructions on our Customer Service Portal.
How do I find cheap flights from Seattle - Tacoma Intl. Airport (SEA) to Keflavik Intl. Airport (KEF) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Sea-Tac Airport to KEF flights, you'll see a "no change fees" filter for you to select.
How far is the flight from SEA to Reykjavík–Keflavík Airport?
With a flight distance of 5,800 kilometers between Sea-Tac Airport and Keflavik Intl. Airport (KEF), this is a long-haul flight. Make sure you stay hydrated and move your legs from time to time.
Which airlines fly direct from Seattle - Tacoma Intl. Airport (SEA) to Keflavik Intl. Airport (KEF)?
Check out Icelandair (FI) if you want to fly directly from Seattle - Tacoma Intl. Airport (SEA) to KEF. This top airline operates 30 flights monthly, so you're sure to find one that fits your travel plans.
Are Sea-Tac Airport to Reykjavík–Keflavík Airport flight tickets cheaper when they're purchased at the last minute?
It is possible to pick up an awesome last-minute deal from Seattle - Tacoma Intl. Airport (SEA) to Keflavik Intl. Airport (KEF), but it can also be hit-or-miss. As many airlines release seats up to 12 months in advance, it's worth keeping an eye on fares early and being ready to book when you spot a bargain. Expedia compares air carrier prices and updates flight deals often, so you can be certain you're always getting the latest offers.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Keflavik Intl.
Return price
HK$4,929
Distance
5776 km
Average flight time
7 hours 40 mins

Book with confidence

Flights from Seattle to Suðurnesjabær

Book cheap flights from Seattle (SEA) to Suðurnesjabær (KEF) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from Seattle (SEA) to Suðurnesjabær (KEF) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Seattle (SEA) to Suðurnesjabær (KEF) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Suðurnesjabær flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Suðurnesjabær and things to do in Suðurnesjabær for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Suðurnesjabær more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Suðurnesjabær is HK$3,769 now!

 

Flights from Seattle to Suðurnesjabær

Explore a world of travel with Expedia

*Available to Expedia members.