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Keflavik Intl

$317+ Cheap flights from Seattle (SEA) to Keflavik Intl (KEF)

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 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — KEF
Dec 24 — Dec 311
Tue 12/24
Tue 12/31
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to Reykjavik Keflavik Intl are usually found in May or November, booked 26 days in advance, depart on a Monday or Tuesday and return on a Tuesday

Cheap flight deals from Seattle to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Keflavik Intl (KEF). 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 December 19, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$543
(Kiwi.com)

One-way from

$317
(Mytrip)

Popular in

December

Cheapest in

May

Average price

$815
Provider with most accurate pricing for Seattle/Tacoma Intl-Reykjavik Keflavik Intl flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Reykjavik Keflavik Intl flights.
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From Seattle/Tacoma Intl to Reykjavik Keflavik Intl
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One-way flight from Seattle/Tacoma Intl to Reykjavik Keflavik Intl
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High demand for flights, 0% potential price rise
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Best time to find cheap flights, 0% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Seattle to Keflavik Intl

Cheapest flights from Seattle to Keflavik Intl
Explore the most affordable flight options available from Seattle to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.

This Gotogate deal was found by Cheapflights users on 12/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/242:35 pmSEA - KEF
Nonstop7h 40mIcelandair
Mon 12/305:05 pmKEF - SEA
Nonstop7h 55mIcelandair
Deal found 12/18$1,003
This Icelandair deal was found by Cheapflights users on 12/17. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2411:23 amSEA - KEF
1 stop10h 37mMultiple Airlines
Mon 12/305:05 pmKEF - SEA
Nonstop7h 55mMultiple Airlines
Deal found 12/17$1,352
This KAYAK deal was found by Cheapflights users on 12/18. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/245:42 pmSEA - KEF
2 stops33h 03mBritish Airways
Mon 12/3011:45 amKEF - SEA
2 stops42h 09mBritish Airways
Deal found 12/18$2,130
This KAYAK deal was found by Cheapflights users on 12/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/237:15 amSEA - KEF
2 stops24h 10mScandinavian Airlines
Mon 12/307:35 amKEF - SEA
2 stops24h 49mScandinavian Airlines
Deal found 12/17$2,420
This Turkish Airlines deal was found by Cheapflights users on 12/17. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/277:00 pmSEA - KEF
2 stops36h 25mTurkish Airlines
Tue 12/317:50 amKEF - SEA
2 stops41h 15mTurkish Airlines
Deal found 12/17$3,266

Find flights from Seattle to Keflavik Intl within your budget

Customize your flight search to find flights from Seattle to Keflavik Intl 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 December 19, 2024.

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Route

Depart

Return

Price

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sat 2/1

3:45 pm-4:45 am

1 stop29h 00m

Reykjavik Keflavik Intl

Sat 2/8

4:00 pm-10:38 am

1 stop26h 38m

$543

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sun 2/2

6:50 pm-10:55 am

1 stop32h 05m

Reykjavik Keflavik Intl

Tue 2/11

11:45 am-4:55 pm

1 stop37h 10m

$571

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Wed 4/2

6:50 pm-12:10 am

1 stop22h 20m

Reykjavik Keflavik Intl

Mon 4/7

12:25 am-12:25 pm

1 stop19h 00m

$654

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Wed 4/2

3:45 pm-6:15 am

Nonstop7h 30m

Reykjavik Keflavik Intl

Tue 4/8

4:50 pm-5:50 pm

Nonstop8h 00m

$657

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sat 1/18

1:45 pm-5:10 pm

1 stop19h 25m

Reykjavik Keflavik Intl

Sat 1/25

11:50 am-4:55 pm

1 stop37h 05m

$665

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Thu 2/20

8:10 am-12:25 am

2 stops32h 15m

Reykjavik Keflavik Intl

Fri 2/28

1:15 am-8:19 pm

2 stops27h 04m

$699

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sat 6/14

2:55 pm-8:35 am

2 stops34h 40m

Reykjavik Keflavik Intl

Sun 6/22

10:00 am-7:41 pm

1 stop16h 41m

$714

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sat 4/19

6:00 am-9:30 am

2 stops20h 30m

Reykjavik Keflavik Intl

Sat 4/26

11:25 am-10:25 pm

1 stop18h 00m

$751

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Fri 5/2

11:15 am-9:30 am

1 stop15h 15m

Reykjavik Keflavik Intl

Fri 5/9

8:50 am-11:59 pm

2 stops22h 09m

$762

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Thu 5/1

11:20 am-4:55 pm

2 stops22h 35m

Reykjavik Keflavik Intl

Thu 5/8

8:45 am-4:00 pm

1 stop14h 15m

$784

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/18

Showing 1-10 of 20 results
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Compare providers for flights from Seattle to Keflavik Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Keflavik Intl in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*2 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Reykjavik Keflavik Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Reykjavik Keflavik Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Reykjavik Keflavik Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl 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.

Travel insights for flights from Seattle to Keflavik Intl

Get recent, data-driven insights about flights from Seattle to Keflavik Intl including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Seattle to Reykjavik Keflavik Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Keflavik Intl. Price data was last updated on December 13, 2024.

The price you pay for your flight from Seattle to Reykjavik Keflavik Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 26 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, November is the cheapest month in which you can book a flight from Seattle to Reykjavik Keflavik Intl Airport (average of $328). Flying from Seattle to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $651). 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 Keflavik Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 19, 2024.

One of the essential ways to save on airfare from Seattle to Reykjavik Keflavik Intl Airport is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 33% on airfare.

What is the cheapest day to fly from Seattle to Reykjavik Keflavik Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Keflavik Intl. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Reykjavik Keflavik Intl Airport flight should consider departing on Friday mornings when fares are most often at their lowest. Thursday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Seattle to Reykjavik Keflavik Intl Airport

Explore weekly flight availability from Seattle to Keflavik Intl. 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 December 19, 2024.

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

Rainfall in Keflavik Intl by month

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

In terms of precipitation, rainfall in Reykjavik Keflavik Intl Airport ranges from 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. May is typically the driest time to visit Reykjavik Keflavik Intl Airport when rainfall is around 1.6 in.

Temperature in Keflavik Intl by month

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

If weather is an important factor for your trip to Reykjavik Keflavik Intl Airport, 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 51.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing Keflavik Intl

Get insights into the airlines that provide service to Keflavik Intl. 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 Keflavik Intl. Reviews last updated December 19, 2024.
Get a feel of what it's like to fly with Icelandair and British Airways from Seattle to Reykjavik by reading reviews from past customers. 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.
Finnair
7.7
Good
1,285 reviews

Comfort

7.5

Crew

8.2

Overall

7.7

Food

6.7

Boarding

7.7

Entertainment

6.9

Reviews

1 / 10

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Finnair
7.7
Good
1,285 reviews
Finnair
7.7
Good
1,285 reviews

Comfort

7.5

Crew

8.2

Overall

7.7

Food

6.7

Boarding

7.7

Entertainment

6.9

Reviews

1 / 10

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

SWISS
7.6
Good
1,605 reviews
Finnair
7.7
Good
1,285 reviews

Comfort

7.5

Crew

8.2

Overall

7.7

Food

6.7

Boarding

7.7

Entertainment

6.9

Reviews

1 / 10

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Austrian Airlines
7.6
Good
788 reviews
Finnair
7.7
Good
1,285 reviews

Comfort

7.5

Crew

8.2

Overall

7.7

Food

6.7

Boarding

7.7

Entertainment

6.9

Reviews

1 / 10

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Turkish Airlines
7.3
Good
3,901 reviews
Finnair
7.7
Good
1,285 reviews

Comfort

7.5

Crew

8.2

Overall

7.7

Food

6.7

Boarding

7.7

Entertainment

6.9

Reviews

1 / 10

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

American Airlines
7.2
Good
10,000 reviews
Finnair
7.7
Good
1,285 reviews

Comfort

7.5

Crew

8.2

Overall

7.7

Food

6.7

Boarding

7.7

Entertainment

6.9

Reviews

1 / 10

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

Related info for your journey

Find useful and relevant information for your journey from Seattle to Keflavik Intl. 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 Keflavik Intl?

    Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Reykjavik Keflavik Intl. On average, Seattle/Tacoma Intl has 2 outbound flights to Reykjavik Keflavik Intl per day from 5 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

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

    Currently priced at $571, British Airways will fly you from Seattle to Reykjavik Keflavik Intl Airport and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and Austrian Airlines - these airlines can fly you to your destination from $665 and $699, respectively. You may be able to fly from Seattle to Reykjavik Keflavik Intl Airport for 24% less than the average price by searching for these airlines.

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

    For one-way options, check prices for British Airways. According to our data, you can fly for as low as $438. Users have also found prices from $443 and $476 on SWISS and American Airlines, respectively.

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

    Consider airBaltic (100%), Alaska Airlines (99%) or Icelandair (99%) when booking your flight. These represent the most reliable airlines when flying from Seattle to Reykjavik Keflavik Intl Airport.

  • What are the cheapest flights from Seattle to Reykjavik Keflavik Intl Airport?

    Looking at all options, your cheapest flight can be booked for $237. While the most popular route (Seattle/Tacoma Intl - Reykjavik Keflavik Intl) can be booked for $557 on average our data indicates $1,620 when flying from Seattle to Reykjavik Keflavik Intl Airport.

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

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

  • How can I find direct flights from Seattle to Keflavik Intl?

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

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

    Yes. Cheapflights offers flight deals from Seattle to Keflavik Intl 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 Keflavik Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Seattle to Reykjavik Keflavik Intl Airport (average of $328). Flying from Seattle to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $651). 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.

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Alternative routes for Seattle to Keflavik Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Seattle to Keflavik Intl

Discover the top 5 airlines that operate flights from Seattle to Keflavik Intl. 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 December 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$454Average$508FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$485Average$552FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$520Average$572FlexibilityNo cancel feeOn-time77%
DeltaCheapest$521Average$539FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$636Average$783FlexibilityNo cancel feeOn-time76%
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