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Keflavik Intl

$659+ 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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — KEF
Mar 21 — Mar 281
Sat 3/21
Sat 3/28
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 February 19, 2026.

This Delta deal was found by Cheapflights users on 2/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1212:50 pm
PWM
-
KEF
2 stops16h 40m
Delta
Fri 8/218:50 am
KEF
-
PWM
1 stop11h 25m
Delta
Deal found 2/16$659
This United Airlines deal was found by Cheapflights users on 2/15. 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.
Tue 9/14:48 pm
PWM
-
KEF
1 stop11h 42m
United Airlines
Tue 9/810:00 am
KEF
-
PWM
2 stops31h 52m
United Airlines
Deal found 2/15$674
This Air Canada deal was found by Cheapflights users on 2/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:00 am
PWM
-
KEF
2 stops21h 55m
Air Canada
Sat 8/229:15 am
KEF
-
PWM
2 stops37h 12m
Air Canada
Deal found 2/16$688
This KLM deal was found by Cheapflights users on 2/15. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/12:35 pm
PWM
-
KEF
1 stop14h 55m
KLM
Tue 9/88:50 am
KEF
-
PWM
1 stop11h 25m
KLM
Deal found 2/15$690
This Air Canada deal was found by Cheapflights users on 2/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:00 am
PWM
-
KEF
2 stops45h 55m
Air Canada
Sat 8/229:15 am
KEF
-
PWM
2 stops37h 12m
Air Canada
Deal found 2/16$694
This oojo deal was found by Cheapflights users on 2/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/282:18 pm
PWM
-
KEF
1 stop12h 02m
Icelandair
Mon 6/15:00 pm
KEF
-
PWM
1 stop10h 36m
Icelandair
Deal found 2/18$700
This United Airlines deal was found by Cheapflights users on 2/16. 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.
Tue 8/116:00 am
PWM
-
KEF
2 stops22h 45m
United Airlines
Fri 8/219:15 am
KEF
-
PWM
2 stops29h 29m
United Airlines
Deal found 2/16$701
This Delta deal was found by Cheapflights users on 2/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1212:50 pm
PWM
-
KEF
2 stops16h 40m
Delta
Thu 8/209:30 am
KEF
-
PWM
1 stop29h 19m
Delta
Deal found 2/16$702
This Expedia deal was found by Cheapflights users on 2/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/58:15 pm
PWM
-
KEF
2 stops31h 40m
Air Canada
Sun 9/139:15 am
KEF
-
PWM
2 stops37h 12m
Air Canada
Deal found 2/16$707
This Air Canada deal was found by Cheapflights users on 2/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:00 am
PWM
-
KEF
2 stops45h 55m
Air Canada
Thu 8/209:15 am
KEF
-
PWM
2 stops51h 56m
Air Canada
Deal found 2/16$708
This KLM deal was found by Cheapflights users on 2/15. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/82:38 pm
PWM
-
KEF
1 stop14h 52m
KLM
Mon 5/188:50 am
KEF
-
PWM
1 stop11h 13m
KLM
Deal found 2/15$711

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 February 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$659
(Delta)
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.
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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 February 19, 2026.
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

Wed 8/12

12:50 pm-9:30 am

2 stops16h 40m

Reykjavik Keflavik Intl

Fri 8/21

8:50 am-4:15 pm

1 stop11h 25m

$659

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Thu 5/28

2:18 pm-6:20 am

1 stop12h 02m

Reykjavik Keflavik Intl

Mon 6/1

5:00 pm-11:36 pm

1 stop10h 36m

$700

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Wed 8/12

12:50 pm-9:30 am

2 stops16h 40m

Reykjavik Keflavik Intl

Thu 8/20

9:30 am-10:49 am

1 stop29h 19m

$702

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Wed 8/12

6:00 am-7:55 am

2 stops21h 55m

Reykjavik Keflavik Intl

Sat 8/22

9:15 am-10:44 am

2 stops29h 29m

$711

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Fri 5/8

2:38 pm-9:30 am

1 stop14h 52m

Reykjavik Keflavik Intl

Mon 5/18

8:50 am-4:03 pm

1 stop11h 13m

$711

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Thu 8/13

6:00 am-8:45 am

2 stops46h 45m

Reykjavik Keflavik Intl

Sat 8/22

9:15 am-6:27 pm

2 stops37h 12m

$749

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Tue 8/11

6:00 am-7:55 am

2 stops45h 55m

Reykjavik Keflavik Intl

Wed 8/19

10:00 am-11:30 pm

2 stops41h 30m

$749

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Tue 8/11

5:59 pm-9:30 am

1 stop11h 31m

Reykjavik Keflavik Intl

Fri 8/21

8:50 am-4:15 pm

1 stop11h 25m

$755

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Mon 8/10

12:50 pm-9:30 am

2 stops40h 40m

Reykjavik Keflavik Intl

Fri 8/21

8:50 am-11:11 pm

2 stops18h 21m

$774

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Tue 8/11

12:50 pm-9:30 am

2 stops16h 40m

Reykjavik Keflavik Intl

Thu 8/20

9:30 am-10:49 am

1 stop29h 19m

$802

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/16

Showing 1-10 of 15 results
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.

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, April is the cheapest month in which you can book a flight from Portland, Maine to Reykjavik Keflavik Intl Airport (average of $235). Flying from Portland, Maine to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $369). 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 $700, Delta can have you in Reykjavik Keflavik Intl Airport from Portland, Maine in 12h 02m. Airlines will cover a distance of 2313 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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, April is the cheapest month in which you can book a flight from Portland, Maine to Reykjavik Keflavik Intl Airport (average of $235). Flying from Portland, Maine to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $369). 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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