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Keflavik Intl

$599+ Cheap flights from Portland, ME (PWM) 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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — KEF
Jun 15 — Jun 221
Mon 6/15
Mon 6/22
1 adult, Economy
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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 May 16, 2026.

This Expedia deal was found by Cheapflights users on 5/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/256:00 am
PWM
-
KEF
1 stop20h 20m
Multiple Airlines
Wed 9/305:00 pm
KEF
-
PWM
1 stop10h 52m
Multiple Airlines
Deal found 5/14$734
This Icelandair deal was found by Cheapflights users on 5/14. 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.
Thu 7/235:20 pm
PWM
-
KEF
1 stop11h 50m
Multiple Airlines
Wed 7/295:00 pm
KEF
-
PWM
1 stop11h 14m
Multiple Airlines
Deal found 5/14$859
This oojo deal was found by Cheapflights users on 5/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:00 am
PWM
-
KEF
1 stop22h 55m
Icelandair
Mon 6/87:50 pm
KEF
-
PWM
1 stop21h 45m
Icelandair
Deal found 5/11$866
This FlightHub deal was found by Cheapflights users on 5/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/12:37 pm
PWM
-
KEF
1 stop14h 18m
Multiple Airlines
Tue 6/97:50 pm
KEF
-
PWM
1 stop21h 45m
Multiple Airlines
Deal found 5/11$874
This oojo deal was found by Cheapflights users on 5/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/232:40 pm
PWM
-
KEF
1 stop14h 15m
Icelandair
Wed 7/295:00 pm
KEF
-
PWM
1 stop11h 14m
Icelandair
Deal found 5/11$876
This FlightHub deal was found by Cheapflights users on 5/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/22:37 pm
PWM
-
KEF
1 stop14h 18m
Multiple Airlines
Mon 6/87:50 pm
KEF
-
PWM
1 stop21h 45m
Multiple Airlines
Deal found 5/11$911
This United Airlines deal was found by Cheapflights users on 5/14. 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.
Tue 9/226:00 am
PWM
-
KEF
2 stops21h 55m
United Airlines
Fri 10/29:15 am
KEF
-
PWM
2 stops40h 12m
United Airlines
Deal found 5/14$914
This United Airlines deal was found by Cheapflights users on 5/14. 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 9/235:15 am
PWM
-
KEF
2 stops23h 35m
United Airlines
Fri 10/29:15 am
KEF
-
PWM
2 stops40h 12m
United Airlines
Deal found 5/14$915
This Delta deal was found by Cheapflights users on 5/14. 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.
Tue 9/222:35 pm
PWM
-
KEF
1 stop14h 55m
Delta
Fri 10/211:25 am
KEF
-
PWM
1 stop16h 34m
Delta
Deal found 5/14$921
This United Airlines deal was found by Cheapflights users on 5/14. 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.
Tue 9/223:44 pm
PWM
-
KEF
2 stops13h 06m
United Airlines
Thu 10/110:00 am
KEF
-
PWM
2 stops17h 27m
United Airlines
Deal found 5/14$929
This United Airlines deal was found by Cheapflights users on 5/14. 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.
Tue 9/229:15 am
PWM
-
KEF
2 stops18h 40m
United Airlines
Tue 9/2910:00 am
KEF
-
PWM
2 stops35h 12m
United Airlines
Deal found 5/14$933
This Delta deal was found by Cheapflights users on 5/14. 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.
Tue 9/2211:38 am
PWM
-
KEF
1 stop15h 22m
Delta
Tue 9/299:30 am
KEF
-
PWM
1 stop29h 19m
Delta
Deal found 5/14$934

Find 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 May 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$734
(Expedia)

One-way from

$599
(United Airlines)
Provider with most accurate pricing for Portland-Reykjavik Keflavik Intl flight deals.
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Provider most trusted by Cheapflights users for Portland-Reykjavik Keflavik Intl flights.
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From Portland to Reykjavik Keflavik Intl
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One-way flight from Portland to Reykjavik Keflavik Intl
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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 May 16, 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

PWM - KEF

PWMKEF

Portland

Wed 9/23

5:15 am-8:50 am

2 stops23h 35m

Reykjavik Keflavik Intl

Fri 10/2

9:15 am-9:27 pm

2 stops40h 12m

$915

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Tue 9/22

6:00 am-8:30 am

2 stops22h 30m

Reykjavik Keflavik Intl

Wed 9/30

9:15 am-11:27 pm

2 stops18h 12m

$938

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Thu 9/24

6:00 am-7:55 am

2 stops21h 55m

Reykjavik Keflavik Intl

Fri 10/2

9:15 am-9:27 pm

2 stops40h 12m

$960

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Thu 7/23

7:16 pm-8:30 am

1 stop9h 14m

Reykjavik Keflavik Intl

Wed 7/29

10:00 am-11:51 pm

2 stops41h 51m

$1,039

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Fri 9/25

11:38 am-7:00 am

1 stop15h 22m

Reykjavik Keflavik Intl

Tue 9/29

9:30 am-10:49 am

1 stop29h 19m

$1,055

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Fri 9/25

11:38 am-7:00 am

1 stop15h 22m

Reykjavik Keflavik Intl

Tue 9/29

9:30 am-1:54 pm

2 stops32h 24m

$1,055

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Thu 8/6

5:15 am-7:00 am

2 stops21h 45m

Reykjavik Keflavik Intl

Mon 8/10

9:15 am-6:29 pm

2 stops37h 14m

$1,089
Quickest round-trip

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Mon 8/24

1:05 pm-6:25 am

1 stop13h 20m

Reykjavik Keflavik Intl

Thu 8/27

7:50 pm-9:50 am

1 stop18h 00m

$1,153

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Sun 6/7

6:00 am-6:05 am

2 stops20h 05m

Reykjavik Keflavik Intl

Sun 6/14

7:50 pm-1:35 pm

1 stop21h 45m

$1,175

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Sun 6/7

5:50 am-8:45 am

2 stops22h 55m

Reykjavik Keflavik Intl

Sun 6/14

9:15 am-11:30 pm

2 stops18h 15m

$1,259

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/12

Showing 1-10 of 14 resultsSorted by cheapest first
1
2
  • 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.
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

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 $915, United Airlines can have you in Reykjavik Keflavik Intl Airport from Portland, Maine in 23h 35m. 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.

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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