HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Keflavik Intl

$367+ Cheap flights from Portland (PDX) 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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — KEF
Aug 25 — Sep 11
Di 8/25
Di 9/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland 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.
Cheapflights Tip: The best prices from Portland to Reykjavik Keflavik Intl are usually found in November or October, booked 56 days in advance, depart on a Monday or Tuesday and return on a Wednesday

Cheap flight deals from Portland to Keflavik Intl

Cheapest flights from Portland to Keflavik Intl
Explore the most affordable flight options available from Portland to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on Juli 26, 2026.

This FlightHub deal was found by Cheapflights users on 7/21. 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.
Fr 10/163:30 pm
PDX
-
KEF
2 stops33h 25m
Air Canada
Fr 10/239:15 am
KEF
-
PDX
2 stops44h 08m
Air Canada
Deal found 7/21$415
This United Airlines deal was found by Cheapflights users on 7/25. 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.
So 9/277:02 am
PDX
-
KEF
1 stop18h 48m
United Airlines
Mi 10/79:15 am
KEF
-
PDX
2 stops44h 42m
United Airlines
Deal found 7/25$416
This United deal was found by Cheapflights users on 7/24. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 9/2611:30 pm
PDX
-
KEF
1 stop26h 20m
Multiple Airlines
Fr 10/29:15 am
KEF
-
PDX
2 stops31h 16m
Multiple Airlines
Deal found 7/24$417
This United Airlines deal was found by Cheapflights users on 7/24. 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.
Sa 9/267:02 am
PDX
-
KEF
2 stops17h 53m
United Airlines
Fr 10/29:15 am
KEF
-
PDX
2 stops40h 38m
United Airlines
Deal found 7/24$419
This Justfly.com deal was found by Cheapflights users on 7/22. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 10/110:10 am
PDX
-
KEF
2 stops14h 45m
Air Canada
Di 10/610:00 am
KEF
-
PDX
2 stops39h 53m
Air Canada
Deal found 7/22$420
This United Airlines deal was found by Cheapflights users on 7/22. 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.
So 9/277:02 am
PDX
-
KEF
1 stop18h 48m
United Airlines
Di 10/610:00 am
KEF
-
PDX
2 stops42h 10m
United Airlines
Deal found 7/22$421
This United deal was found by Cheapflights users on 7/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 9/2611:30 pm
PDX
-
KEF
1 stop26h 20m
Multiple Airlines
Mo 10/510:00 am
KEF
-
PDX
2 stops30h 31m
Multiple Airlines
Deal found 7/25$422
This Justfly.com deal was found by Cheapflights users on 7/21. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 8/253:30 pm
PDX
-
KEF
2 stops33h 25m
Air Canada
Mo 8/319:15 am
KEF
-
PDX
2 stops33h 13m
Air Canada
Deal found 7/21$423
This United Airlines deal was found by Cheapflights users on 7/22. 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.
Mo 9/2811:30 pm
PDX
-
KEF
2 stops25h 25m
United Airlines
Do 10/810:00 am
KEF
-
PDX
2 stops43h 53m
United Airlines
Deal found 7/22$424
This FlightHub deal was found by Cheapflights users on 7/22. 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.
So 10/1110:10 am
PDX
-
KEF
2 stops15h 35m
Air Canada
Do 10/1510:00 am
KEF
-
PDX
2 stops43h 23m
Air Canada
Deal found 7/22$425
This United Airlines deal was found by Cheapflights users on 7/23. 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.
Sa 9/2611:30 pm
PDX
-
KEF
1 stop26h 20m
United Airlines
Do 10/110:00 am
KEF
-
PDX
2 stops43h 53m
United Airlines
Deal found 7/23$426
This FlightHub deal was found by Cheapflights users on 7/22. 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.
Di 8/187:45 pm
PDX
-
KEF
2 stops29h 10m
Air Canada
Fr 8/289:15 am
KEF
-
PDX
2 stops33h 13m
Air Canada
Deal found 7/22$428

Find flight deals from Portland to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) 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 Juli 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$415
(FlightHub)

One-way from

$367
(United Airlines)

Popular in

December

Cheapest in

November

Average price

$746

Good round-trip deal

$638 or less

Good one-way deal

$332 or less
Provider with most accurate pricing for Portland-Reykjavik Keflavik Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Reykjavik Keflavik Intl flights.
Search Deals
From Portland to Reykjavik Keflavik Intl
Search Deals
One-way flight from Portland to Reykjavik Keflavik Intl
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($132 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease ($63 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Portland to Reykjavik Keflavik Intl.
Search Deals
Price to beat on a one-way flight from Portland to Reykjavik Keflavik Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland 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 Juli 26, 2026.
Use the filters below to find and compare flights from Portland to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandReykjavik

PDX - KEF

PDXKEF

Portland

Mi 8/19

2:27 pm-8:50 am

1 stop11h 23m

Reykjavik Keflavik Intl

Di 8/25

9:15 am-11:28 am

2 stops33h 13m

$429

PortlandReykjavik

PDX - KEF

PDXKEF

Portland

Mi 10/21

2:27 pm-8:50 am

1 stop11h 23m

Reykjavik Keflavik Intl

Mo 10/26

12:00 pm-7:07 pm

1 stop14h 07m

$436

PortlandReykjavik

PDX - KEF

PDXKEF

Portland

So 9/27

7:02 am-8:50 am

1 stop18h 48m

Reykjavik Keflavik Intl

Mo 10/5

12:00 pm-10:23 pm

1 stop17h 23m

$436

PortlandReykjavik

PDX - KEF

PDXKEF

Portland

Do 9/3

7:45 pm-7:55 am

2 stops29h 10m

Reykjavik Keflavik Intl

Sa 9/12

10:00 am-9:31 am

2 stops30h 31m

$441

PortlandReykjavik

PDX - KEF

PDXKEF

Portland

Sa 9/26

11:30 pm-8:50 am

1 stop26h 20m

Reykjavik Keflavik Intl

Do 10/1

12:00 pm-9:31 am

1 stop28h 31m

$447

PortlandReykjavik

PDX - KEF

PDXKEF

Portland

Sa 8/29

8:25 am-8:30 am

1 stop17h 05m

Reykjavik Keflavik Intl

So 9/6

12:00 pm-10:52 pm

1 stop17h 52m

$449

PortlandReykjavik

PDX - KEF

PDXKEF

Portland

Mi 11/4

7:15 pm-10:00 am

2 stops54h 45m

Reykjavik Keflavik Intl

Mo 11/9

12:00 pm-10:27 pm

1 stop18h 27m

$451

PortlandReykjavik

PDX - KEF

PDXKEF

Portland

Sa 8/22

2:27 pm-7:55 am

2 stops34h 28m

Reykjavik Keflavik Intl

Mo 8/31

11:30 am-8:10 pm

1 stop15h 40m

$453
Quickest round-trip

PortlandReykjavik

PDX - KEF

PDXKEF

Portland

Mi 10/21

3:30 pm-6:15 am

Nonstop7h 45m

Reykjavik Keflavik Intl

Mo 10/26

4:50 pm-6:00 pm

Nonstop8h 10m

$544
Cheapest one-way

PortlandReykjavik

PDX - KEF

PDXKEF

Portland

Mo 8/24

8:15 am-8:50 am

1 stop17h 35m

$367

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/20

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Compare providers for flights from Portland 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 Portland to Keflavik Intl in July.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*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 Portland-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 Portland-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-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 Portland-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 Portland to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from Portland 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 Portland to Reykjavik Keflavik Intl Airport

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

The best time to book flights from Portland to Reykjavik Keflavik Intl Airport is 55 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest time of day to fly from PDX to KEF?

Find hourly flight availability from Portland 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 Juli 26, 2026.

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

How much does it cost to fly round-trip from Portland to Reykjavik Keflavik Intl Airport?

Airfare is below average for this route at the moment.

Portland to Reykjavik Keflavik Intl Airport flights typically cost between $661 and $1,058 in October.
The cheapest round-trip price found within the last 5 days was $415 on Air Canada (Oct 16-Oct 23).

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 Juli 26, 2026.
Get a feel of what it's like to fly with Alaska Airlines and Icelandair from Portland to Reykjavik Keflavik Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,716 reviews

Crew

8.5

Overall

7.9

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

PDX - BNA

My family especially liked the leg room and comfortable seats.
Alaska Airlines
7.9
Good
12,716 reviews
Alaska Airlines
7.9
Good
12,716 reviews

Crew

8.5

Overall

7.9

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

PDX - BNA

My family especially liked the leg room and comfortable seats.
Icelandair
7.0
Good
716 reviews
Alaska Airlines
7.9
Good
12,716 reviews

Crew

8.5

Overall

7.9

Comfort

7.8

Entertainment

7.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Nov 2025

PDX - BNA

My family especially liked the leg room and comfortable seats.

Related info for your journey

Find useful and relevant information for your journey from Portland 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 Portland to Reykjavik Keflavik Intl?

    Most people fly from Portland (PDX) if they book a flight from Portland to Reykjavik Keflavik Intl. On average, Portland has 1 outbound flight to Reykjavik Keflavik Intl per day from 2 airlines. Portland is conveniently located just 6.0 mi from Portland’s city center.

  • How long is the flight from Portland to Reykjavik Keflavik Intl Airport?

    United Airlines can get you from Portland to Reykjavik Keflavik Intl Airport in just under 11h 23m. Your travel time can differ by up to . Airlines will cover a distance of 3724 mi.

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

    Currently priced at $364, Icelandair will fly you from Portland to Reykjavik Keflavik Intl Airport and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Alaska Airlines for as low as $601. Icelandair is currently priced 51% below the average price you’ll pay for this route.

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

    The cheapest flight price from Portland to Reykjavik Keflavik Intl Airport is $214. On average you can expect to pay $1,707. The most popular route, (Portland - Reykjavik Keflavik Intl), can usually be booked for $417.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland 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.

See more FAQs

Traveling to a place near Reykjavik Keflavik Intl Airport?

Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locations
Keflavik
Hveragerdi

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to Keflavik Intl

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

Top 2 airlines flying from Portland to Keflavik Intl

Discover the top 2 airlines that operate flights from Portland 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 Juli 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$364Average$678FlexibilityNo cancel feeOn-time76%
Alaska AirlinesCheapest$601Average$994FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.