$257+ Cheap flights from Washington 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Washington to Keflavik Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Washington to Keflavik Intl
Keep the following information in mind while searching for Washington to Keflavik Intl flight deals. Data was last updated June 12, 2025.
Round-trip from | $397 (CheapOair) |
|---|---|
One-way from | $257 (Expedia) |
Good round-trip deal | $499 or less |
Good one-way deal | $251 or less |
Find flight deals from Washington to Keflavik Intl
Cheapest flights from Washington to Keflavik IntlExplore the most affordable flight options available from Washington to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
Explore the most affordable flight options available from Washington to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Ticket 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This AirNGo 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
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.
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.
Cheapflights Fare Finder
Customize your flight search to find flights from Washington 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 June 12, 2025.
Use the filters below to find and compare flights from Washington to Reykjavik Keflavik Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
PortlandReykjavik
PDX - KEF
PDXKEF
Portland
Mon 7/14
7:40 pm-8:10 am
2 stops53h 30m
Reykjavik Keflavik Intl
Wed 7/23
9:30 am-11:43 am
2 stops33h 13m
PortlandReykjavik
PDX - KEF
PDXKEF
Portland
Mon 7/14
10:50 pm-8:10 am
2 stops26h 20m
Reykjavik Keflavik Intl
Wed 7/23
9:30 am-10:16 pm
2 stops43h 46m
SeattleReykjavik
SEA - KEF
SEAKEF
Seattle/Tacoma Intl
Sun 8/3
7:00 am-8:30 am
1 stop18h 30m
Reykjavik Keflavik Intl
Tue 8/12
9:50 am-11:00 am
1 stop32h 10m
SeattleReykjavik
SEA - KEF
SEAKEF
Seattle/Tacoma Intl
Sat 7/26
7:20 am-8:15 am
2 stops17h 55m
Reykjavik Keflavik Intl
Sat 8/2
9:50 am-9:21 am
2 stops30h 31m
SeattleReykjavik
SEA - KEF
SEAKEF
Seattle/Tacoma Intl
Sun 9/14
7:15 am-8:15 am
2 stops18h 00m
Reykjavik Keflavik Intl
Sun 9/21
12:25 am-11:55 am
1 stop18h 30m
SeattleReykjavik
SEA - KEF
SEAKEF
Seattle/Tacoma Intl
Wed 10/1
4:20 pm-4:20 pm
1 stop17h 00m
Reykjavik Keflavik Intl
Mon 10/6
11:05 am-2:00 pm
2 stops57h 55m
SeattleReykjavik
SEA - KEF
SEAKEF
Seattle/Tacoma Intl
Fri 10/3
11:35 pm-9:30 am
2 stops50h 55m
Reykjavik Keflavik Intl
Mon 10/13
8:45 am-10:56 am
2 stops33h 11m
SeattleReykjavik
SEA - KEF
SEAKEF
Seattle/Tacoma Intl
Sun 7/6
11:30 pm-2:00 pm
Nonstop7h 30m
Reykjavik Keflavik Intl
Tue 7/15
10:30 am-11:25 am
Nonstop7h 55m
SeattleReykjavik
SEA - KEF
SEAKEF
Seattle/Tacoma Intl
Sat 8/30
9:45 pm-9:30 am
1 stop28h 45m
Reykjavik Keflavik Intl
Sun 9/7
11:25 am-8:14 pm
1 stop15h 49m
PortlandReykjavik
PDX - KEF
PDXKEF
Portland
Wed 7/16
3:20 pm-5:55 am
Nonstop7h 35m
Reykjavik Keflavik Intl
Wed 7/23
4:50 pm-5:55 pm
Nonstop8h 05m
Best time to book a flight from Washington to Keflavik Intl
Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from Washington with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Washington to Reykjavik Keflavik Intl Airport
What is the cheapest month to book a flight from State of Washington to Reykjavik Keflavik Intl Airport?
Currently, November is the cheapest month in which you can book a flight from State of Washington to Reykjavik Keflavik Intl Airport (average of $328). Flying from State of Washington to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $659). 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 WA to KEF?
Find hourly flight availability from Washington 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 June 12, 2025.
When flying from State of Washington to Reykjavik Keflavik Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from State of Washington to Reykjavik Keflavik Intl Airport
Explore weekly flight availability from Washington 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 June 12, 2025.
The most flights from USWA to KEF are scheduled on a Monday (6 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (5 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 June 12, 2025.
Read through reviews of airlines operating flights from Washington to Reykjavik, such as Delta, Alaska Airlines and KLM. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
Boarding
Comfort
Overall
Entertainment
Crew
Reviews
Kim,May 2025
PIH - SLC
Food
Boarding
Comfort
Overall
Entertainment
Crew
Reviews
Kim,May 2025
PIH - SLC
Food
Boarding
Comfort
Overall
Entertainment
Crew
Reviews
Kim,May 2025
PIH - SLC
Food
Boarding
Comfort
Overall
Entertainment
Crew
Reviews
Kim,May 2025
PIH - SLC
Food
Boarding
Comfort
Overall
Entertainment
Crew
Reviews
Kim,May 2025
PIH - SLC
Food
Boarding
Comfort
Overall
Entertainment
Crew
Reviews
Kim,May 2025
PIH - SLC
Related info for your journey
Find useful and relevant information for your journey from Washington to Keflavik Intl. 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 Washington to Keflavik Intl
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from Washington to Keflavik Intl
Discover the top 3 airlines that operate flights from Washington 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 June 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$323 | Average$543 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$449 | Average$489 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$463 | Average$867 | FlexibilityNo cancel fee | On-time76% |