HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Keflavik Intl

$545+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — KEF
May 19 — May 261
Tue 5/19
Tue 5/26
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.

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 April 19, 2026.

This oojo deal was found by Cheapflights users on 4/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:20 am
PWM
-
KEF
1 stop19h 00m
Icelandair
Thu 5/217:50 pm
KEF
-
PWM
1 stop21h 45m
Icelandair
Deal found 4/16$723
This KAYAK deal was found by Cheapflights users on 4/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/246:00 am
PWM
-
KEF
1 stop20h 20m
Multiple Airlines
Mon 6/17:50 pm
KEF
-
PWM
1 stop21h 45m
Multiple Airlines
Deal found 4/17$757
This Ovago deal was found by Cheapflights users on 4/17. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/256:00 am
PWM
-
KEF
1 stop20h 20m
Multiple Airlines
Mon 6/17:50 pm
KEF
-
PWM
1 stop21h 45m
Multiple Airlines
Deal found 4/17$758
This oojo deal was found by Cheapflights users on 4/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/141:17 pm
PWM
-
KEF
1 stop15h 38m
Icelandair
Tue 7/287:50 pm
KEF
-
PWM
1 stop21h 55m
Icelandair
Deal found 4/16$804
This oojo deal was found by Cheapflights users on 4/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/71:17 pm
PWM
-
KEF
1 stop13h 03m
Icelandair
Tue 7/145:00 pm
KEF
-
PWM
1 stop24h 45m
Icelandair
Deal found 4/15$854
This Icelandair deal was found by Cheapflights users on 4/14. 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.
Wed 10/211:30 pm
PWM
-
KEF
1 stop12h 55m
Multiple Airlines
Mon 10/265:00 pm
KEF
-
PWM
1 stop11h 05m
Multiple Airlines
Deal found 4/14$869
This FlightHub deal was found by Cheapflights users on 4/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/162:40 pm
PWM
-
KEF
1 stop14h 15m
Multiple Airlines
Mon 7/277:50 pm
KEF
-
PWM
1 stop20h 31m
Multiple Airlines
Deal found 4/14$921
This FlightHub deal was found by Cheapflights users on 4/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/152:40 pm
PWM
-
KEF
1 stop11h 40m
Multiple Airlines
Sun 7/267:50 pm
KEF
-
PWM
1 stop21h 55m
Multiple Airlines
Deal found 4/14$922
This KAYAK deal was found by Cheapflights users on 4/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/262:36 pm
PWM
-
KEF
1 stop11h 44m
Multiple Airlines
Tue 6/25:00 pm
KEF
-
PWM
1 stop10h 58m
Multiple Airlines
Deal found 4/17$997
This United Airlines deal was found by Cheapflights users on 4/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/212:20 pm
PWM
-
KEF
1 stop14h 10m
United Airlines
Wed 6/39:15 am
KEF
-
PWM
2 stops33h 11m
United Airlines
Deal found 4/17$1,016
This United Airlines deal was found by Cheapflights users on 4/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/212:20 pm
PWM
-
KEF
1 stop14h 10m
United Airlines
Tue 6/210:00 am
KEF
-
PWM
2 stops31h 25m
United Airlines
Deal found 4/17$1,020
This Delta deal was found by Cheapflights users on 4/14. 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 7/144:52 pm
PWM
-
KEF
2 stops12h 38m
Delta
Tue 7/288:45 am
KEF
-
PWM
2 stops18h 29m
Delta
Deal found 4/14$1,024

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 April 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$723
(oojo)

One-way from

$545
(United Airlines)
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

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 April 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Wed 7/15

2:40 pm-6:20 am

1 stop11h 40m

Reykjavik Keflavik Intl

Mon 7/27

5:00 pm-12:21 pm

1 stop23h 21m

$723

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Thu 7/16

2:40 pm-8:55 am

1 stop14h 15m

Reykjavik Keflavik Intl

Mon 7/27

7:50 pm-12:21 pm

1 stop20h 31m

$921

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Tue 7/14

4:52 pm-9:30 am

2 stops12h 38m

Reykjavik Keflavik Intl

Tue 7/28

8:45 am-11:14 pm

2 stops18h 29m

$1,024

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Tue 7/7

2:53 pm-9:30 am

1 stop14h 37m

Reykjavik Keflavik Intl

Tue 7/14

9:30 am-11:14 pm

2 stops17h 44m

$1,074

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Wed 7/15

4:58 pm-8:50 am

1 stop11h 52m

Reykjavik Keflavik Intl

Mon 7/27

10:00 am-1:25 pm

2 stops31h 25m

$1,094
Quickest round-trip

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Thu 8/20

2:40 pm-6:20 am

1 stop11h 40m

Reykjavik Keflavik Intl

Fri 8/21

5:00 pm-12:14 am

1 stop11h 14m

$1,203

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Thu 7/16

3:16 pm-7:55 am

2 stops12h 39m

Reykjavik Keflavik Intl

Sun 7/26

11:30 am-11:51 pm

1 stop16h 21m

$1,218

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Fri 5/29

6:25 pm-8:50 am

1 stop10h 25m

Reykjavik Keflavik Intl

Fri 6/5

11:30 am-11:51 pm

1 stop16h 21m

$1,225

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Thu 7/16

3:16 pm-7:55 am

2 stops12h 39m

Reykjavik Keflavik Intl

Mon 7/27

10:00 am-9:41 pm

2 stops15h 41m

$1,226

PortlandReykjavik

PWM - KEF

PWMKEF

Portland

Wed 5/27

2:20 pm-8:30 am

1 stop14h 10m

Reykjavik Keflavik Intl

Wed 6/3

11:30 am-7:27 pm

1 stop11h 57m

$1,226

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

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 $723, Icelandair can have you in Reykjavik Keflavik Intl Airport from Portland, Maine in 11h 40m. 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.

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.
Boston to Keflavik Intl flights
Bangor to Keflavik Intl flights

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.