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Keflavik Intl

$739+ Cheap flights from Portland, ME (PWM) to Keflavik Intl (KEF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — KEF
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
1 adult, Economy
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Cheap flight deals from Portland to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) 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 August 18, 2025.

Round-trip from

$739
(United Airlines)
From Portland to Reykjavik Keflavik Intl
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Find 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 August 18, 2025.

This United Airlines deal was found by Cheapflights users on 8/16. 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.
Fri 8/226:14 amPWM - KEF
2 stops22h 06mUnited Airlines
Tue 8/269:50 amKEF - PWM
2 stops32h 36mUnited Airlines
Deal found 8/16$739
This United Airlines deal was found by Cheapflights users on 8/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/154:56 pmPWM - KEF
1 stop11h 34mUnited Airlines
Mon 9/229:50 amKEF - PWM
2 stops32h 35mUnited Airlines
Deal found 8/18$760
This United deal was found by Cheapflights users on 8/18. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/18:00 amPWM - KEF
1 stop19h 00mMultiple Airlines
Mon 9/89:50 amKEF - PWM
2 stops36h 36mMultiple Airlines
Deal found 8/18$777
This Air Canada deal was found by Cheapflights users on 8/18. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1510:39 amPWM - KEF
3 stops17h 36mMultiple Airlines
Mon 9/229:50 amKEF - PWM
2 stops16h 09mMultiple Airlines
Deal found 8/18$790
This FlightHub deal was found by Cheapflights users on 8/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/167:30 amPWM - KEF
2 stops20h 40mAir Canada
Tue 9/239:50 amKEF - PWM
2 stops36h 36mAir Canada
Deal found 8/17$844
This United Airlines deal was found by Cheapflights users on 8/15. 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.
Wed 8/276:23 pmPWM - KEF
1 stop10h 07mUnited Airlines
Sun 8/319:30 amKEF - PWM
2 stops28h 32mUnited Airlines
Deal found 8/15$896
This American Airlines deal was found by Cheapflights users on 8/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:16 pmPWM - KEF
2 stops37h 39mAmerican Airlines
Thu 1/811:45 amKEF - PWM
2 stops39h 44mAmerican Airlines
Deal found 8/17$926
This American Airlines deal was found by Cheapflights users on 8/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/302:27 pmPWM - KEF
2 stops39h 18mAmerican Airlines
Thu 1/811:45 amKEF - PWM
2 stops39h 44mAmerican Airlines
Deal found 8/17$938
This American Airlines deal was found by Cheapflights users on 8/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:16 pmPWM - KEF
2 stops37h 39mAmerican Airlines
Fri 1/911:50 amKEF - PWM
2 stops29h 19mAmerican Airlines
Deal found 8/17$939

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 August 18, 2025.
Use the filters below to find and compare flights from Portland to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Portland

Fly to

Keflavik Intl

Route

Depart

Return

Price

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Fri 8/22

6:23 pm-8:30 am

1 stop10h 07m

Reykjavik Keflavik Intl

Tue 8/26

9:50 am-2:26 pm

2 stops32h 36m

$739

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Mon 9/15

4:56 pm-8:30 am

1 stop11h 34m

Reykjavik Keflavik Intl

Mon 9/22

9:50 am-2:25 pm

2 stops32h 35m

$760

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Mon 9/15

12:40 pm-6:20 am

1 stop13h 40m

Reykjavik Keflavik Intl

Mon 9/22

11:25 am-12:34 am

1 stop17h 09m

$777

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Mon 9/1

8:00 am-7:00 am

1 stop19h 00m

Reykjavik Keflavik Intl

Mon 9/8

9:50 am-6:26 pm

2 stops36h 36m

$777

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Mon 9/15

10:39 am-8:15 am

3 stops17h 36m

Reykjavik Keflavik Intl

Mon 9/22

9:50 am-9:59 pm

2 stops16h 09m

$790

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Tue 9/16

7:30 am-8:10 am

2 stops20h 40m

Reykjavik Keflavik Intl

Tue 9/23

9:50 am-6:26 pm

2 stops36h 36m

$844

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Wed 8/27

8:00 am-8:10 am

2 stops20h 10m

Reykjavik Keflavik Intl

Sun 8/31

9:30 am-6:26 pm

2 stops12h 56m

$896

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Wed 8/27

6:23 pm-8:30 am

1 stop10h 07m

Reykjavik Keflavik Intl

Sun 8/31

9:30 am-10:02 am

2 stops28h 32m

$896

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

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

What is the cheapest month to book a flight from Portland, Maine to Reykjavik Keflavik Intl Airport?

Currently, November is the cheapest month in which you can book a flight from Portland, Maine to Reykjavik Keflavik Intl Airport (average of $328). Flying from Portland, Maine to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $655). 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.

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?

    Located just 2.9 mi from the city center, Portland is the airport most travelers will use when flying to Reykjavik Keflavik Intl from Portland. Booking flights from Portland (PWM) to Reykjavik Keflavik Intl should be relatively easy as there are 0 daily outbound flights to Reykjavik Keflavik Intl from 0 different airlines.

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

    For as low as $739, United Airlines can have you in Reykjavik Keflavik Intl Airport from Portland, Maine in 10h 07m. Airlines will cover a distance of 2313 mi.

  • 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.

  • What is the cheapest month to book a flight from Portland, Maine to Reykjavik Keflavik Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Portland, Maine to Reykjavik Keflavik Intl Airport (average of $328). Flying from Portland, Maine to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $655). 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

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

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