$416+ 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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — KEF
Nov 24 — Dec 11
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 October 25, 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 25, 2026.
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Sun 11/225:08 pm -
1 stop11h 52m
Sat 12/512:00 pm -
1 stop14h 29m
Deal found 10/21![United Airlines logo]()
$796
This United Airlines deal was found by Cheapflights users on 10/25. 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.
Wed 11/45:08 pm -
1 stop11h 52m
Mon 11/912:00 pm -
1 stop14h 51m
Deal found 10/25![United Airlines logo]()
$846
This United Airlines deal was found by Cheapflights users on 10/25. 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.
Tue 11/33:41 pm -
2 stops37h 19m
Mon 11/912:00 pm -
1 stop14h 51m
Deal found 10/25![United Airlines logo]()
$858
This SmartFares deal was found by Cheapflights users on 10/24. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/66:00 am -
2 stops23h 50m
Fri 12/1111:35 am -
2 stops41h 46m
Deal found 10/24![Scandinavian Airlines logo]()
$914
This Icelandair deal was found by Cheapflights users on 10/22. 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 12/3010:25 am -
1 stop15h 05m
Wed 1/65:00 pm -
1 stop9h 40m
Deal found 10/22![Multiple Airlines logo]()
$1,099
This United Airlines deal was found by Cheapflights users on 10/25. 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 12/185:15 am -
2 stops23h 45m
Thu 12/2412:00 pm -
1 stop15h 45m
Deal found 10/25![United Airlines logo]()
$1,196
This Icelandair deal was found by Cheapflights users on 10/25. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1810:25 am -
1 stop15h 05m
Fri 12/255:00 pm -
1 stop9h 50m
Deal found 10/25![Multiple Airlines logo]()
$1,339
This Icelandair deal was found by Cheapflights users on 10/25. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1810:25 am -
1 stop15h 05m
Wed 12/235:00 pm -
1 stop26h 45m
Deal found 10/25![Multiple Airlines logo]()
$1,347
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 25, 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 25, 2026.
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Sun 11/228:47 am -
1 stop20h 13m
Sat 12/512:00 pm -
2 stops16h 24m
Deal found 10/21![United Airlines logo]()
$801
This Icelandair deal was found by Cheapflights users on 10/24. 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.
Thu 4/225:00 pm -
1 stop9h 25m
Tue 4/275:00 pm -
1 stop23h 30m
Deal found 10/24![Multiple Airlines logo]()
$837
This Delta deal was found by Cheapflights users on 10/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2212:50 pm -
2 stops16h 40m
Tue 4/2711:25 am -
1 stop16h 24m
Deal found 10/24![Delta logo]()
$897
This KAYAK deal was found by Cheapflights users on 10/24. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/69:51 am -
1 stop19h 09m
Fri 12/113:20 pm -
2 stops37h 04m
Deal found 10/24![Lufthansa logo]()
$1,361
This United Airlines deal was found by Cheapflights users on 10/25. 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.
Wed 11/45:08 pm -
1 stop11h 52m
Mon 11/912:00 pm -
1 stop14h 51m
Deal found 10/25![United Airlines logo]()
$846
This United Airlines deal was found by Cheapflights users on 10/25. 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 12/185:15 am -
2 stops23h 45m
Thu 12/2412:00 pm -
2 stops16h 59m
Deal found 10/25![United Airlines logo]()
$1,196
This Icelandair deal was found by Cheapflights users on 10/25. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1810:25 am -
1 stop15h 05m
Fri 12/255:00 pm -
1 stop9h 50m
Deal found 10/25![Multiple Airlines logo]()
$1,339
This Icelandair deal was found by Cheapflights users on 10/25. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1810:25 am -
1 stop15h 05m
Wed 12/235:00 pm -
1 stop26h 45m
Deal found 10/25![Multiple Airlines logo]()
$1,347
This Icelandair deal was found by Cheapflights users on 10/23. 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.
Fri 12/181:25 pm -
1 stop12h 05m
Tue 12/225:00 pm -
1 stop28h 40m
Deal found 10/23![Multiple Airlines logo]()
$1,464
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Sat 11/213:41 pm -
2 stops37h 19m
Sat 11/2812:00 pm -
1 stop14h 48m
Deal found 10/24![United Airlines logo]()
$1,738
Last-minute flights from Portland to Keflavik IntlDiscover last-minute flight deals from Portland to Keflavik Intl. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Keflavik Intl. Data last updated October 25, 2026 and is based on user searches.
This Finnair deal was found by Cheapflights users on 10/25. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:30 am -
2 stops29h 45m
Sun 11/810:00 am -
2 stops18h 43m
Deal found 10/25![Multiple Airlines logo]()
$1,438
This United Airlines deal was found by Cheapflights users on 10/25. 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.
Tue 11/33:41 pm -
2 stops37h 19m
Mon 11/912:00 pm -
1 stop14h 51m
Deal found 10/25![United Airlines logo]()
$858
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/35:09 pm -
1 stop32h 31m
Mon 11/94:45 pm -
1 stop28h 39m
Deal found 10/25![Multiple Airlines logo]()
$1,489
This United Airlines deal was found by Cheapflights users on 10/25. 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.
Wed 11/45:08 pm -
1 stop11h 52m
Mon 11/912:00 pm -
1 stop14h 51m
Deal found 10/25![United Airlines logo]()
$846
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Sat 11/213:41 pm -
2 stops37h 19m
Sat 11/2812:00 pm -
2 stops26h 00m
Deal found 10/24![United Airlines logo]()
$1,711
This Icelandair deal was found by Cheapflights users on 10/24. 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.
Sat 11/211:00 pm -
1 stop12h 30m
Sat 11/285:00 pm -
1 stop12h 10m
Deal found 10/24![Multiple Airlines logo]()
$2,172
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Sun 11/225:08 pm -
1 stop11h 52m
Sat 12/512:00 pm -
1 stop14h 29m
Deal found 10/21![United Airlines logo]()
$796
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 25, 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 25, 2026.
This Finnair deal was found by Cheapflights users on 10/22. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/112:18 pm -
2 stops24h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$416
This KLM deal was found by Cheapflights users on 10/22. 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 4/12:35 pm -
1 stop14h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![KLM logo]()
$519
This Scandinavian Airlines deal was found by Cheapflights users on 10/22. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/16:30 am -
3 stops29h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Scandinavian Airlines logo]()
$3,109
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 October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $796 (United Airlines) |
One-way from | $416 (Finnair) |
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 October 25, 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
Thu 4/1
12:18 pm-4:30 pm
2 stops24h 12m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$416
Quickest round-trip
PortlandReykjavik
PWM Portland - KEF Reykjavik Keflavik Intl
PWMKEF
Portland
Thu 4/1
2:35 pm-9:30 am
1 stop14h 55m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-7:00 pm
Nonstop0h 00m
$519
PortlandReykjavik
PWM Portland - KEF Reykjavik Keflavik Intl
PWMKEF
Portland
Sun 11/22
8:47 am-10:00 am
1 stop20h 13m
Reykjavik Keflavik Intl
Sat 12/5
12:00 pm-11:24 pm
2 stops16h 24m
$801
PortlandReykjavik
PWM Portland - KEF Reykjavik Keflavik Intl
PWMKEF
Portland
Thu 4/22
5:00 pm-6:25 am
1 stop9h 25m
Reykjavik Keflavik Intl
Tue 4/27
5:00 pm-12:30 pm
1 stop23h 30m
$837
PortlandReykjavik
PWM Portland - KEF Reykjavik Keflavik Intl
PWMKEF
Portland
Wed 11/4
5:08 pm-10:00 am
1 stop11h 52m
Reykjavik Keflavik Intl
Mon 11/9
12:00 pm-9:51 pm
1 stop14h 51m
$846
PortlandReykjavik
PWM Portland - KEF Reykjavik Keflavik Intl
PWMKEF
Portland
Thu 4/22
12:50 pm-9:30 am
2 stops16h 40m
Reykjavik Keflavik Intl
Tue 4/27
11:25 am-11:49 pm
1 stop16h 24m
$897
PortlandReykjavik
PWM Portland - KEF Reykjavik Keflavik Intl
PWMKEF
Portland
Fri 12/18
5:15 am-10:00 am
2 stops23h 45m
Reykjavik Keflavik Intl
Thu 12/24
12:00 pm-11:59 pm
2 stops16h 59m
$1,196
PortlandReykjavik
PWM Portland - KEF Reykjavik Keflavik Intl
PWMKEF
Portland
Fri 12/18
10:25 am-6:30 am
1 stop15h 05m
Reykjavik Keflavik Intl
Fri 12/25
5:00 pm-9:50 pm
1 stop9h 50m
$1,339
PortlandReykjavik
PWM Portland - KEF Reykjavik Keflavik Intl
PWMKEF
Portland
Fri 12/18
10:25 am-6:30 am
1 stop15h 05m
Reykjavik Keflavik Intl
Wed 12/23
5:00 pm-2:45 pm
1 stop26h 45m
$1,347
PortlandReykjavik
PWM Portland - KEF Reykjavik Keflavik Intl
PWMKEF
Portland
Sun 12/6
9:51 am-10:00 am
1 stop19h 09m
Reykjavik Keflavik Intl
Fri 12/11
3:20 pm-11:24 pm
2 stops37h 04m
$1,361
Showing 1-10 of 12 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 October.
| 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 locationsHveragerdi
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