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Cheap flights from Seattle to Reykjavik from C$ 342

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 14/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — REK
5 May — 12 May1
1 adult

Cheap flight deals from Seattle to Reykjavik

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Reykjavik (IS1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 30 April 2025.

Round-trip from

C$ 746

One-way from

C$ 342
WestJet
  • WestJet
  • 26/7-6/8
  • 2 total stops
  • 40h 03m total
  • Seattle to Reykjavik
Search Deals
WestJet
  • WestJet
  • 14/7
  • 1 total stop
  • 29h 40m total
  • Seattle to Reykjavik
Search Deals

Find flight deals from Seattle to Reykjavik

Cheapest flights from Seattle to Reykjavik
Explore the most affordable flight options available from Seattle to Reykjavik. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 April 2025.

Sat 26/77:35 p.m.SEA - KEF
1 stop29h 40mWestJet
Wed 6/89:35 a.m.KEF - SEA
1 stop10h 23mWestJet
Deal found 29/4C$ 746
Sat 26/711:30 p.m.SEA - KEF
Nonstop7h 30mIcelandair
Tue 12/87:45 p.m.KEF - SEA
Nonstop7h 55mIcelandair
Deal found 29/4C$ 761
Sun 14/96:00 a.m.SEA - KEF
1 stop17h 20mDelta
Wed 1/108:45 a.m.KEF - SEA
1 stop18h 45mDelta
Deal found 29/4C$ 775
Sun 28/911:45 a.m.SEA - KEF
1 stop11h 35mMultiple Airlines
Tue 7/108:45 a.m.KEF - SEA
1 stop16h 56mMultiple Airlines
Deal found 29/4C$ 778
Tue 3/611:55 a.m.SEA - KEF
1 stop12h 05mKLM
Tue 10/69:30 a.m.KEF - SEA
2 stops21h 34mKLM
Deal found 29/4C$ 783
Wed 20/87:20 a.m.SEA - KEF
1 stop17h 50mUnited Airlines
Wed 3/910:00 a.m.KEF - SEA
3 stops42h 18mUnited Airlines
Deal found 29/4C$ 851
Wed 29/107:50 p.m.SEA - KEF
1 stop32h 05mBritish Airways
Wed 12/1111:45 a.m.KEF - SEA
1 stop37h 10mBritish Airways
Deal found 29/4C$ 930
Fri 24/106:50 p.m.SEA - KEF
2 stops21h 45mLufthansa
Thu 13/113:10 p.m.KEF - SEA
1 stop30h 10mLufthansa
Deal found 29/4C$ 940
Sun 21/94:20 p.m.SEA - KEF
1 stop17h 00mScandinavian Airlines
Tue 30/97:40 a.m.KEF - SEA
2 stops20h 10mScandinavian Airlines
Deal found 29/4C$ 1,044
Wed 27/88:00 a.m.SEA - KEF
2 stops32h 20mAustrian Airlines
Sun 31/812:10 a.m.KEF - SEA
2 stops27h 32mAustrian Airlines
Deal found 28/4C$ 1,110

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle to Reykjavik 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 629,999 searches. Data last updated 30 April 2025.
Use the filters below to find and compare flights from Seattle to Reykjavik that are best for you.

Fly from

Seattle

Fly to

Reykjavik

Route

Depart

Return

Price

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sat 26/7

7:35 p.m.-8:15 a.m.

1 stop29h 40m

Reykjavik Keflavik Intl

Wed 6/8

9:35 a.m.-12:58 p.m.

1 stop10h 23m

C$ 746

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sat 26/7

11:30 p.m.-2:00 p.m.

Nonstop7h 30m

Reykjavik Keflavik Intl

Tue 12/8

7:45 p.m.-8:40 p.m.

Nonstop7h 55m

C$ 761

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sun 14/9

6:00 a.m.-6:20 a.m.

1 stop17h 20m

Reykjavik Keflavik Intl

Wed 1/10

8:45 a.m.-8:30 p.m.

1 stop18h 45m

C$ 775

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sun 28/9

11:45 a.m.-6:20 a.m.

1 stop11h 35m

Reykjavik Keflavik Intl

Tue 7/10

8:45 a.m.-6:41 p.m.

1 stop16h 56m

C$ 778

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Tue 3/6

11:55 a.m.-7:00 a.m.

1 stop12h 05m

Reykjavik Keflavik Intl

Tue 10/6

9:30 a.m.-12:04 a.m.

2 stops21h 34m

C$ 783

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Wed 20/8

7:20 a.m.-8:10 a.m.

1 stop17h 50m

Reykjavik Keflavik Intl

Wed 3/9

10:00 a.m.-8:42 p.m.

2 stops41h 42m

C$ 851

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Fri 24/10

6:50 p.m.-11:35 p.m.

2 stops21h 45m

Reykjavik Keflavik Intl

Thu 13/11

3:10 p.m.-1:20 p.m.

1 stop30h 10m

C$ 940

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sun 21/9

4:20 p.m.-4:20 p.m.

1 stop17h 00m

Reykjavik Keflavik Intl

Tue 30/9

7:40 a.m.-8:50 p.m.

2 stops20h 10m

C$ 1,044

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Wed 27/8

8:00 a.m.-11:20 p.m.

2 stops32h 20m

Reykjavik Keflavik Intl

Sun 31/8

12:10 a.m.-8:42 p.m.

2 stops27h 32m

C$ 1,110

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Mon 14/7

7:35 p.m.-8:15 a.m.

1 stop29h 40m

C$ 342

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/4

Showing 1-10 of 15 results
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Best time to book a flight from Seattle to Reykjavik

Have a flexible travel schedule? Discover the best time to fly to Reykjavik from Seattle with our price prediction graph.
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 Reykjavik

What is the cheapest month to book a flight from Seattle to Reykjavik?

Currently, January is the cheapest month in which you can book a flight from Seattle to Reykjavik (average of C$ 268). Flying from Seattle to Reykjavik in December is currently the most expensive (average of C$ 593). 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 KEF?

Find hourly flight availability from Seattle to Reykjavik. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 30 April 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Reykjavik as you normally would.

Weekly flight availability from Seattle to Reykjavik

Explore weekly flight availability from Seattle to Reykjavik. 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 30 April 2025.

The most flights from SEA to IS1 are scheduled on a Monday (4 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Reykjavik by month

Plan your trip to Reykjavik by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Reykjavik ranges from 40.0 - 80.0 mm per month. January is typically the wettest month, when rainfall can reach 80.0 mm. May is typically the driest time to visit Reykjavik when rainfall is around 40.0 mm.

Temperature in Reykjavik by month

Plan your trip to Reykjavik by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Reykjavik, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 11.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

Reviews of airlines servicing Reykjavik

Get insights into the airlines that provide service to Reykjavik. 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 Reykjavik. Reviews last updated 30 April 2025.
See what other customers who have flown with Alaska Airlines, Delta and KLM from Seattle to Reykjavik have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,961 reviews
Check prices

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews
Check prices

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Delta
8.0
Very good
7,929 reviews
Alaska Airlines
8.0
Very good
9,961 reviews
Check prices

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
KLM
7.8
Good
1,334 reviews
Alaska Airlines
8.0
Very good
9,961 reviews
Check prices

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
Austrian Airlines
7.6
Good
780 reviews
Alaska Airlines
8.0
Very good
9,961 reviews
Check prices

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews
Check prices

Boarding

8.2

Crew

8.5

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Related info for your journey

Find useful and relevant information for your journey from Seattle to Reykjavik. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    If you book a flight to Reykjavik from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 18.4 km from the centre of Seattle. There are 0 flights from Seattle/Tacoma Intl to Reykjavik per day from 0 different airlines.

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

    Cheapflights users have booked flights from Seattle to Reykjavik round-trip from C$ 746. Other airlines that can offer you cheap pricing are Icelandair, from C$ 761, and Delta, from C$ 775.

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

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as C$ 342. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Seattle to Reykjavik for a low price.

  • What are the most reliable airlines from Seattle to Reykjavik?

    The top 3 most reliable airlines when flying from Seattle to Reykjavik are airBaltic (100%), Alaska Airlines (85%) and Icelandair (85%).

  • What are the cheapest flights from Seattle to Reykjavik?

    Looking at all options, your cheapest flight can be booked for C$ 324. While the most popular route (Seattle/Tacoma Intl - Reykjavik Keflavik Intl) can be booked for C$ 782 on average our data indicates C$ 1,492 when flying from Seattle to Reykjavik.

  • Can I find deals for flights from Seattle to Reykjavik that include hotel bookings?

    Yes. In addition to deals on Seattle to Reykjavik flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Reykjavik?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Reykjavik.

  • Can I find deals for business class flights from Seattle to Reykjavik?

    Yes. Cheapflights offers flight deals from Seattle to Reykjavik by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Reykjavik?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Reykjavik (average of C$ 268). Flying from Seattle to Reykjavik in December is currently the most expensive (average of C$ 593). 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.

See more FAQs

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Alternative routes for Seattle to Reykjavik

See prices for flight routes from nearby airports that may be better suited for you.
Seattle to Keflavik Intl flights

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Can Cheapflights find flights from Seattle to Reykjavik with no change fees?

Certainly. Search results for flights to Reykjavik from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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