Cheap flights from Seattle to Keflavik

Round-trip
Economy
Seattle (SEA)
Reykjavik (KEF)
Depart
Return
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How to find the cheapest flight from
Seattle (SEA) to Keflavik (KEF)

All the information you need to plan the best SEA to KEF flight in 2021: compare Seattle to Keflavik flight prices with the expected peak season, weather and rainfall in Keflavik.
SEA - KEF
Price
C$ 718 - C$ 900
KEF
Temperature
3 - 14 °C
KEF
Rainfall
21 - 94 mm

Popular in

December

High demand for flights, 10% potential price rise

Cheapest in

February

Best time to find cheap flights, 12% potential price drop

Round-trip from

C$ 718

From Seattle to Keflavik

One-way from

C$ 683

One-way flight from Seattle to Keflavik

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
How far in advance should I book a flight from Seattle to Keflavik?

To save up to 56% on this flight, we recommend booking at least 33 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Seattle to Keflavik from C$ 851 1-2 weeks out and tickets from C$ 1,143 for flights departing within the next 72 hours.

Cheap flights from Seattle to Keflavik in July, August 2021

The best prices found for SEA to KEF flights for July, August
28 Aug - 6 Sep
C$ 838pp
SEA
Seattle/Tacoma Intl
United Airlines
   
2 STOPS
KEF
Reykjavik Keflavik Intl
KEF
Reykjavik Keflavik Intl
United Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
21 Aug - 30 Aug
C$ 841pp
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
KEF
Reykjavik Keflavik Intl
KEF
Reykjavik Keflavik Intl
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl
31 Aug - 8 Sep
C$ 848pp
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
KEF
Reykjavik Keflavik Intl
KEF
Reykjavik Keflavik Intl
Delta
   
2 STOPS
SEA
Seattle/Tacoma Intl

Seattle to Keflavik 2021 flight deals

Cheap flights to Keflavik from Seattle found for this year
5 Oct - 26 Oct
C$ 753pp
SEA
Seattle/Tacoma Intl
Finnair
   
2 STOPS
KEF
Reykjavik Keflavik Intl
KEF
Reykjavik Keflavik Intl
Finnair
   
2 STOPS
SEA
Seattle/Tacoma Intl
27 Sep - 4 Oct
C$ 813pp
SEA
Seattle/Tacoma Intl
Icelandair
Direct
KEF
Reykjavik Keflavik Intl
KEF
Reykjavik Keflavik Intl
Icelandair
Direct
SEA
Seattle/Tacoma Intl
12 Oct - 17 Oct
C$ 834pp
SEA
Seattle/Tacoma Intl
Icelandair
Direct
KEF
Reykjavik Keflavik Intl
KEF
Reykjavik Keflavik Intl
Icelandair
Direct
SEA
Seattle/Tacoma Intl

Direct flights to Keflavik from Seattle

Save time with Seattle to Keflavik direct flight deals
27 Sep - 4 Oct
C$ 813pp
SEA
Seattle/Tacoma Intl
Icelandair
Direct
KEF
Reykjavik Keflavik Intl
KEF
Reykjavik Keflavik Intl
Icelandair
Direct
SEA
Seattle/Tacoma Intl
6 Jan - 8 Apr
C$ 829pp
SEA
Seattle/Tacoma Intl
Icelandair
Direct
KEF
Reykjavik Keflavik Intl
KEF
Reykjavik Keflavik Intl
Icelandair
Direct
SEA
Seattle/Tacoma Intl
12 Oct - 17 Oct
C$ 834pp
SEA
Seattle/Tacoma Intl
Icelandair
Direct
KEF
Reykjavik Keflavik Intl
KEF
Reykjavik Keflavik Intl
Icelandair
Direct
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle to Keflavik

Late deals on round-trip flights to Keflavik from Seattle, departing today and this week
1 Aug - 13 Aug
C$ 841pp
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
KEF
Reykjavik Keflavik Intl
KEF
Reykjavik Keflavik Intl
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl
31 Jul - 13 Aug
C$ 850pp
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
KEF
Reykjavik Keflavik Intl
KEF
Reykjavik Keflavik Intl
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl
31 Jul - 19 Aug
C$ 851pp
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
KEF
Reykjavik Keflavik Intl
KEF
Reykjavik Keflavik Intl
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl

One-way flights to Keflavik from Seattle

The cheapest one-way flights from Seattle to Keflavik
3:10 a.m. - 4:05 a.m.
KLM
1 stop
17h 55m
SEA - KEF
KLM
C$ 684
KLM
11:50 a.m. - 2:15 a.m.
Icelandair
Direct
7h 25m
SEA - KEF
Icelandair
C$ 910
8:50 p.m. - 4:05 a.m.
Delta
2 stops
24h 15m
SEA - KEF
Delta
C$ 1,004
Delta

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Seattle</span> to <span class="emphasized">Keflavik</span> flights.

Flight FAQs

From Seattle to Keflavik

What airport do you fly from for flights from Seattle to Reykjavik Keflavik Intl?

Seattle/Tacoma Intl (SEA), located 18.4 km from the city centre, is the airport you fly out of when you book flights from Seattle to Reykjavik Keflavik Intl. 2 airlines have flights from Seattle/Tacoma Intl to Reykjavik Keflavik Intl on a regular basis. Booking flights from Seattle/Tacoma Intl to Reykjavik Keflavik Intl should not be difficult; the airport handles an average of 1 outbound flight to Reykjavik Keflavik Intl per day.

Which airlines flying from Seattle/Tacoma Intl to Reykjavik Keflavik Intl have flexible cancellations due to COVID-19?

Some of our airline partners flying from Seattle/Tacoma Intl to Reykjavik Keflavik Intl have new flexible policies in place due to COVID-19. Icelandair and United Airlines are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like Icelandair with this kind of flexibility.

Can I find flights from Seattle to Keflavik for under C$ 753 on Cheapflights?

Yes, there are multiple flights from Seattle to Keflavik for under C$ 753. The cheapest flight booked recently is on Finnair for just C$ 753, but on average you can expect to pay C$ 856.

Are there direct flights from Seattle to Keflavik for under C$ 879 on Cheapflights?

Cheapflights has 20 direct flights from Seattle to Keflavik under C$ 879. A good price for a direct flight from Seattle to Keflavik is less than C$ 1,036.

Are there last-minute flights available from Seattle to Keflavik for under C$ 879?

There are currently 20+ open flights from Seattle to Keflavik within the next 7 days for less than C$ 879.

What days are direct flights available from Seattle to Keflavik?

Direct flights are available for this route on the following days: Tuesday, Friday.

How many flights depart from Seattle to Keflavik on average per day?

2 flight departures from Seattle/Tacoma Intl to Reykjavik Keflavik Intl per day on average.
Afternoon (Noon - 6pm) - 100% of flight departures

Does it rain more in Seattle or Keflavik?

Seattle will have the same amount of rainfall in 1 compared to Keflavik over the next 9 days.

Is Seattle weather warmer or cooler than Keflavik?

Temperatures around the 25 °C's can be experienced in July. The weather in Keflavik is colder than in Seattle. Plan for potential changes in flight availability as peak weather approaches in this location.

How long is the flight from Seattle to Keflavik?

A quick flight from Seattle to Keflavik can take about 7h 25m. Icelandair provides one of the quickest options available for as low as C$ 813. The distance from Seattle to Keflavik is about 5844 km. This flight may include one or multiple stops.

What are the cheapest airlines to flying from Seattle to Keflavik round-trip?

Cheapflights users have booked flights from Seattle to Keflavik round-trip from C$ 753. Other airlines that can offer you cheap pricing are Icelandair, from C$ 813, and United Airlines, from C$ 838. Users have found that Finnair is 7% cheaper than the other options available to this destination.

What are the cheapest airlines to fly from Seattle to Keflavik one-way?

To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at C$ 640. KLM flights start at C$ 683 while deals on Delta start at C$ 706 one-way.

Destination information for Keflavik

Things to know before you go - useful duration and weather info for your trip from Seattle to Keflavik.
Today's exchange rate
C$ 1 = 100 kr
Flight duration
7h 37m
Average temperature for July in Keflavik
14.0 °C
Avg rainfall for July in Keflavik
26.0 mm

Airports servicing Seattle

Airports servicing Reykjavik

Hourly flight availability from Seattle to Keflavik

See what time of day planes typically take off from Seattle towards Keflavik.
Afternoon Noon to 6 PM 100% of flight departures
Early morning Midnight to 6 AM 0% of flight departures
Morning 6 AM to noon 0% of flight departures
Evening 6 PM to midnight 0% of flight departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Seattle to Keflavik
See how many times per day planes take to the skies headed from Seattle to Keflavik.
Sunday
2 daily flights
Monday
2 daily flights
Tuesday
2 daily flights
Wednesday
0 flights
Thursday
2 daily flights
Friday
3 daily flights
Saturday
2 daily flights
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