$525+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — KEF
Sep 28 — Oct 51
Round-trip
1 adult, Economy
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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
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Last-minute
One-way
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 August 29, 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 August 29, 2026.
This Icelandair deal was found by Cheapflights users on 8/24. 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.
Tue 11/173:25 pm -
1 stop10h 05m
Sun 11/225:00 pm -
1 stop11h 50m
Deal found 8/24![Multiple Airlines logo]()
$829
This United Airlines deal was found by Cheapflights users on 8/24. 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 9/218:00 am -
1 stop20h 50m
Mon 9/2810:00 am -
2 stops31h 51m
Deal found 8/24![United Airlines logo]()
$830
This United Airlines deal was found by Cheapflights users on 8/24. 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 10/75:15 am -
2 stops23h 35m
Mon 10/1212:00 pm -
1 stop13h 46m
Deal found 8/24![United Airlines logo]()
$867
This Expedia deal was found by Cheapflights users on 8/24. 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.
Tue 10/136:00 am -
1 stop22h 55m
Sun 10/187:55 pm -
2 stops31h 59m
Deal found 8/24![Multiple Airlines logo]()
$883
This Icelandair deal was found by Cheapflights users on 8/27. 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 10/155:30 pm -
1 stop11h 40m
Wed 10/215:00 pm -
1 stop9h 40m
Deal found 8/27![Multiple Airlines logo]()
$894
This Ovago deal was found by Cheapflights users on 8/24. 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 9/214:57 pm -
1 stop11h 53m
Mon 9/2812:00 pm -
1 stop13h 46m
Deal found 8/24![Multiple Airlines logo]()
$896
This Ovago deal was found by Cheapflights users on 8/24. 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 9/216:53 pm -
1 stop8h 07m
Mon 9/2810:00 am -
2 stops14h 22m
Deal found 8/24![Lufthansa logo]()
$904
This oojo deal was found by Cheapflights users on 8/27. 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 9/2412:18 pm -
1 stop14h 17m
Thu 10/15:00 pm -
1 stop10h 54m
Deal found 8/27![Multiple Airlines logo]()
$925
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 August 29, 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 August 29, 2026.
This Icelandair deal was found by Cheapflights users on 8/24. 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.
Tue 11/173:25 pm -
1 stop10h 05m
Sun 11/225:00 pm -
1 stop11h 50m
Deal found 8/24![Multiple Airlines logo]()
$829
This United Airlines deal was found by Cheapflights users on 8/24. 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 9/218:00 am -
1 stop20h 50m
Mon 9/2810:00 am -
2 stops31h 51m
Deal found 8/24![United Airlines logo]()
$830
This Delta deal was found by Cheapflights users on 8/26. 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.
Thu 10/156:04 am -
1 stop23h 26m
Wed 10/2111:25 am -
1 stop16h 45m
Deal found 8/26![Delta logo]()
$868
This oojo deal was found by Cheapflights users on 8/26. 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.
Fri 9/116:00 am -
1 stop22h 55m
Mon 9/145:00 pm -
1 stop10h 54m
Deal found 8/26![Icelandair logo]()
$970
This KLM deal was found by Cheapflights users on 8/24. 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 10/134:15 pm -
1 stop13h 15m
Sun 10/1811:25 am -
1 stop16h 45m
Deal found 8/24![KLM logo]()
$1,041
This Icelandair deal was found by Cheapflights users on 8/27. 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 10/155:30 pm -
1 stop11h 40m
Wed 10/215:00 pm -
1 stop9h 40m
Deal found 8/27![Multiple Airlines logo]()
$894
This United Airlines deal was found by Cheapflights users on 8/27. 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 9/248:03 am -
2 stops19h 52m
Thu 10/112:00 pm -
1 stop13h 46m
Deal found 8/27![United Airlines logo]()
$976
This United Airlines deal was found by Cheapflights users on 8/25. 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 10/95:15 am -
2 stops23h 35m
Fri 10/169:15 am -
2 stops32h 36m
Deal found 8/25![United Airlines logo]()
$1,005
This Air France deal was found by Cheapflights users on 8/25. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:04 am -
1 stop23h 26m
Fri 10/1611:25 am -
1 stop16h 45m
Deal found 8/25![Multiple Airlines logo]()
$1,037
This United Airlines deal was found by Cheapflights users on 8/24. 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 10/136:00 am -
2 stops21h 55m
Sun 10/189:15 am -
2 stops53h 26m
Deal found 8/24![United Airlines logo]()
$1,056
Last-minute flights from Portland to Keflavik IntlDiscover last-minute flight deals from Portland to Keflavik Intl. Data last updated August 29, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Keflavik Intl. Data last updated August 29, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 8/26. 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.
Fri 9/116:00 am -
1 stop22h 55m
Mon 9/145:00 pm -
1 stop10h 54m
Deal found 8/26![Icelandair logo]()
$970
This United Airlines deal was found by Cheapflights users on 8/24. 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 9/218:00 am -
1 stop20h 50m
Mon 9/2810:00 am -
2 stops31h 51m
Deal found 8/24![United Airlines logo]()
$830
This Ovago deal was found by Cheapflights users on 8/24. 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 9/214:57 pm -
1 stop11h 53m
Mon 9/2812:00 pm -
1 stop13h 46m
Deal found 8/24![Multiple Airlines logo]()
$896
This Ovago deal was found by Cheapflights users on 8/24. 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 9/216:53 pm -
1 stop8h 07m
Mon 9/2810:00 am -
2 stops14h 22m
Deal found 8/24![Lufthansa logo]()
$904
This Air Canada deal was found by Cheapflights users on 8/24. 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 9/2110:50 am -
3 stops17h 55m
Mon 9/2810:00 am -
3 stops17h 28m
Deal found 8/24![Air Canada logo]()
$974
This oojo deal was found by Cheapflights users on 8/27. 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 9/2412:18 pm -
1 stop14h 17m
Thu 10/15:00 pm -
1 stop10h 54m
Deal found 8/27![Multiple Airlines logo]()
$925
This United Airlines deal was found by Cheapflights users on 8/27. 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 9/245:15 am -
2 stops22h 40m
Thu 10/110:00 am -
2 stops36h 43m
Deal found 8/27![United Airlines logo]()
$960
This Air Canada deal was found by Cheapflights users on 8/27. 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.
Thu 9/2410:43 am -
3 stops17h 12m
Thu 10/110:00 am -
3 stops17h 28m
Deal found 8/27![Air Canada logo]()
$1,297
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 August 29, 2026.
Search for one-way flight options from Portland to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated August 29, 2026.
This KLM deal was found by Cheapflights users on 8/28. 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.
Thu 10/14:20 pm -
1 stop13h 10m
Deal found 8/28![KLM logo]()
$525
This Booking.com deal was found by Cheapflights users on 8/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:03 am -
2 stops19h 52m
Deal found 8/28![Air Canada logo]()
$654
This United Airlines deal was found by Cheapflights users on 8/28. 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 10/12:32 pm -
3 stops13h 23m
Deal found 8/28![United Airlines logo]()
$658
This BusinessClass deal was found by Cheapflights users on 8/24. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/112:24 pm -
2 stops17h 16m
Deal found 8/24![British Airways logo]()
$8,724
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 August 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $829 (Icelandair) |
One-way from | $525 (KLM) |
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 7,457,451 searches. Data last updated August 29, 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
Cheapest round-trip
PortlandReykjavik
PWM Portland - KEF Reykjavik Keflavik Intl
PWMKEF
Portland
Tue 11/17
3:25 pm-6:30 am
1 stop10h 05m
Reykjavik Keflavik Intl
Sun 11/22
5:00 pm-11:50 pm
1 stop11h 50m
$829
PortlandReykjavik
PWM Portland - KEF Reykjavik Keflavik Intl
PWMKEF
Portland
Mon 9/21
8:00 am-8:50 am
1 stop20h 50m
Reykjavik Keflavik Intl
Mon 9/28
10:00 am-1:51 pm
2 stops31h 51m
$830
PortlandReykjavik
PWM Portland - KEF Reykjavik Keflavik Intl
PWMKEF
Portland
Thu 10/15
6:04 am-9:30 am
1 stop23h 26m
Reykjavik Keflavik Intl
Wed 10/21
11:25 am-12:10 am
1 stop16h 45m
$868
Quickest round-trip
PortlandReykjavik
PWM Portland - KEF Reykjavik Keflavik Intl
PWMKEF
Portland
Thu 10/15
5:30 pm-9:10 am
1 stop11h 40m
Reykjavik Keflavik Intl
Wed 10/21
5:00 pm-10:40 pm
1 stop9h 40m
$894
PortlandReykjavik
PWM Portland - KEF Reykjavik Keflavik Intl
PWMKEF
Portland
Fri 9/11
6:00 am-8:55 am
1 stop22h 55m
Reykjavik Keflavik Intl
Mon 9/14
5:00 pm-11:54 pm
1 stop10h 54m
$970
PortlandReykjavik
PWM Portland - KEF Reykjavik Keflavik Intl
PWMKEF
Portland
Thu 9/24
8:03 am-7:55 am
2 stops19h 52m
Reykjavik Keflavik Intl
Thu 10/1
12:00 pm-9:46 pm
1 stop13h 46m
$976
PortlandReykjavik
PWM Portland - KEF Reykjavik Keflavik Intl
PWMKEF
Portland
Fri 10/9
5:15 am-8:50 am
2 stops23h 35m
Reykjavik Keflavik Intl
Fri 10/16
9:15 am-1:51 pm
2 stops32h 36m
$1,005
PortlandReykjavik
PWM Portland - KEF Reykjavik Keflavik Intl
PWMKEF
Portland
Fri 10/9
6:04 am-9:30 am
1 stop23h 26m
Reykjavik Keflavik Intl
Fri 10/16
11:25 am-12:10 am
1 stop16h 45m
$1,037
PortlandReykjavik
PWM Portland - KEF Reykjavik Keflavik Intl
PWMKEF
Portland
Tue 10/13
4:15 pm-9:30 am
1 stop13h 15m
Reykjavik Keflavik Intl
Sun 10/18
11:25 am-12:10 am
1 stop16h 45m
$1,041
PortlandReykjavik
PWM Portland - KEF Reykjavik Keflavik Intl
PWMKEF
Portland
Tue 10/13
6:00 am-7:55 am
2 stops21h 55m
Reykjavik Keflavik Intl
Sun 10/18
9:15 am-10:41 am
2 stops53h 26m
$1,056
Showing 1-10 of 14 resultsSorted by cheapest first
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 August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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
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.
Traveling to a place near Reykjavik Keflavik Intl Airport?
Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locationsKeflavik
Hveragerdi
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