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

For as low as $809, United Airlines can have you in Reykjavik Keflavik Intl Airport from Portland, Maine in 37h 19m. Airlines will cover a distance of 2313 mi.

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.

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).

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

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

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

Most trusted provider : When it comes to deals on Portland, Maine-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, Maine-Reykjavik Keflavik Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

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.

$465+ Cheap Flights from Portland, ME to Reykjavik Keflavik Intl Airport

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Cheap flight deals from Portland to Keflavik Intl

Cheapest

Best

Last-minute

One-way

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 October 3, 2026.

Thu 11/123:41 pm -

2 stops37h 19m

Thu 11/1912:00 pm -

1 stop14h 51m

Deal found 9/28

$809

Sun 11/155:08 pm -

1 stop11h 52m

Sun 11/223:20 pm -

2 stops37h 01m

Deal found 10/1

$851

Tue 11/173:25 pm -

1 stop10h 05m

Tue 11/245:00 pm -

1 stop21h 50m

Deal found 10/3

$878

Find flight deals from Portland to Keflavik Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$809 (United Airlines)
One-way from	$465 (United Airlines)

Provider with most accurate pricing for Portland-Reykjavik Keflavik Intl flight deals.

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Cheapflights Fare Finder

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

Quickest round-trip

PortlandReykjavik

PWM Portland - KEF Reykjavik Keflavik Intl

PWMKEF

Portland

Wed 10/28

10:50 am-10:00 am

2 stops19h 10m

Reykjavik Keflavik Intl

Wed 12/31

12:00 am-7:00 pm

Nonstop0h 00m

$465

PortlandReykjavik

PWM Portland - KEF Reykjavik Keflavik Intl

PWMKEF

Portland

Wed 10/28

5:09 pm-6:30 am

3 stops33h 21m

Reykjavik Keflavik Intl

Wed 12/31

12:00 am-7:00 pm

Nonstop0h 00m

$672

PortlandReykjavik

PWM Portland - KEF Reykjavik Keflavik Intl

PWMKEF

Portland

Thu 11/12

3:41 pm-10:00 am

2 stops37h 19m

Reykjavik Keflavik Intl

Thu 11/19

12:00 pm-9:51 pm

1 stop14h 51m

$809

PortlandReykjavik

PWM Portland - KEF Reykjavik Keflavik Intl

PWMKEF

Portland

Sun 11/15

5:08 pm-10:00 am

1 stop11h 52m

Reykjavik Keflavik Intl

Sun 11/22

3:20 pm-11:21 pm

2 stops37h 01m

$851

PortlandReykjavik

PWM Portland - KEF Reykjavik Keflavik Intl

PWMKEF

Portland

Tue 11/17

3:25 pm-6:30 am

1 stop10h 05m

Reykjavik Keflavik Intl

Tue 11/24

5:00 pm-9:50 am

1 stop21h 50m

$878

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/28

Sorted by cheapest first

Compare providers for flights from Portland to Keflavik Intl

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 October.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy3 stars	Trust 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, Maine-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, Maine-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Portland, Maine-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, Maine-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.

PWM-KEF

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.

Related info for your journey

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 $809, United Airlines can have you in Reykjavik Keflavik Intl Airport from Portland, Maine in 37h 19m. 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.

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$465+ 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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Portland to Keflavik Intl with Cheapflights

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Cheap flight deals from Portland to Keflavik Intl

Cheapest flights from Portland to Keflavik IntlExplore 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 October 3, 2026.

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 October 3, 2026.

Best flights from Portland to Keflavik IntlDiscover carefully curated flight deals from Portland to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 3, 2026.

Discover carefully curated flight deals from Portland to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 3, 2026.

Last-minute flights from Portland to Keflavik IntlDiscover last-minute flight deals from Portland to Keflavik Intl. Data last updated October 3, 2026 and is based on user searches.

Discover last-minute flight deals from Portland to Keflavik Intl. Data last updated October 3, 2026 and is based on user searches.

One-way flights from Portland to Keflavik IntlSearch for one-way flight options from Portland to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated October 3, 2026.

Search for one-way flight options from Portland to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated October 3, 2026.

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

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 October.

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.

Related info for your journey

What airport do you fly from for flights from Portland to Reykjavik Keflavik Intl?

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

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

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

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

Traveling to a place near Reykjavik Keflavik Intl Airport?

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Alternative routes for Portland to Keflavik Intl

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Complete your trip

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Search flights from Portland to Keflavik Intl by cabin class

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Other flights to Keflavik Intl

Explore flights to Keflavik Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 3, 2026.

Portland and Keflavik Intl flights

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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 October 3, 2026.

Best flights from Portland to Keflavik Intl
Discover carefully curated flight deals from Portland to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 3, 2026.

Last-minute flights from Portland to Keflavik Intl
Discover last-minute flight deals from Portland to Keflavik Intl. Data last updated October 3, 2026 and is based on user searches.

One-way flights from Portland to Keflavik Intl
Search for one-way flight options from Portland to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated October 3, 2026.