$408+ Cheap flights from Portland (PDX) 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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — KEF
Oct 12 — Oct 191
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.Cheapflights Tip: The best prices from Portland to Reykjavik Keflavik Intl are usually found in October or April, booked 66 days in advance, depart on a Monday or Tuesday and return on a Wednesday
Cheap flight deals from Portland to Keflavik Intl
Cheapest
Best
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 September 12, 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 September 12, 2026.
This Mytrip deal was found by Cheapflights users on 9/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/143:30 pm -
Nonstop7h 45m
Mon 10/264:50 pm -
Nonstop8h 10m
Deal found 9/11![Icelandair logo]()
$424
This Mytrip deal was found by Cheapflights users on 9/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/263:45 pm -
Nonstop7h 30m
Fri 10/304:50 pm -
Nonstop8h 10m
Deal found 9/9![Icelandair logo]()
$425
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/102:45 pm -
Nonstop7h 30m
Sun 11/154:50 pm -
Nonstop8h 10m
Deal found 9/10![Icelandair logo]()
$426
This oojo deal was found by Cheapflights users on 9/11. 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 10/193:30 pm -
Nonstop7h 45m
Fri 10/234:50 pm -
Nonstop8h 05m
Deal found 9/11![Icelandair logo]()
$430
This Justfly.com deal was found by Cheapflights users on 9/9. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/22:45 pm -
Nonstop7h 30m
Fri 11/134:50 pm -
Nonstop8h 10m
Deal found 9/9![Icelandair logo]()
$437
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Mon 11/22:45 pm -
Nonstop7h 30m
Sun 11/154:50 pm -
Nonstop8h 10m
Deal found 9/9![Icelandair logo]()
$448
This Icelandair deal was found by Cheapflights users on 9/9. 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 10/313:45 pm -
Nonstop7h 30m
Wed 11/114:50 pm -
Nonstop8h 10m
Deal found 9/9![Icelandair logo]()
$449
This Justfly.com deal was found by Cheapflights users on 9/9. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:45 pm -
2 stops29h 10m
Thu 10/2210:00 am -
2 stops43h 23m
Deal found 9/9![Air Canada logo]()
$455
This Air Canada deal was found by Cheapflights users on 9/10. 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.
Fri 10/163:30 pm -
2 stops33h 25m
Fri 10/239:15 am -
2 stops40h 56m
Deal found 9/10![Air Canada logo]()
$463
This Justfly.com deal was found by Cheapflights users on 9/10. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2810:10 am -
2 stops38h 45m
Thu 10/810:00 am -
2 stops30h 31m
Deal found 9/10![Air Canada logo]()
$468
This Gotogate deal was found by Cheapflights users on 9/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1510:10 am -
2 stops14h 45m
Mon 9/2110:00 am -
2 stops32h 28m
Deal found 9/10![Air Canada logo]()
$469
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/92:27 pm -
1 stop11h 23m
Tue 9/1510:00 am -
2 stops36h 05m
Deal found 9/8![United Airlines logo]()
$470
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 September 12, 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 September 12, 2026.
This Delta deal was found by Cheapflights users on 9/8. 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.
Sun 10/41:35 pm -
1 stop10h 25m
Fri 10/1611:25 am -
2 stops28h 21m
Deal found 9/8![Delta logo]()
$478
This United Airlines deal was found by Cheapflights users on 9/9. 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 11/42:34 pm -
1 stop11h 26m
Sat 11/1412:00 pm -
2 stops34h 37m
Deal found 9/9![United Airlines logo]()
$617
This United deal was found by Cheapflights users on 9/6. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/510:43 am -
2 stops38h 12m
Tue 10/134:10 pm -
2 stops34h 01m
Deal found 9/6![Multiple Airlines logo]()
$785
This Alaska Airlines deal was found by Cheapflights users on 9/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/172:45 pm -
Nonstop7h 30m
Tue 2/234:50 pm -
Nonstop8h 10m
Deal found 9/9![Alaska Airlines logo]()
$807
This United Airlines deal was found by Cheapflights users on 9/10. 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 11/42:34 pm -
1 stop11h 26m
Mon 11/912:00 pm -
2 stops30h 18m
Deal found 9/10![United Airlines logo]()
$632
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/2110:33 pm -
2 stops26h 22m
Mon 10/2612:00 pm -
1 stop17h 27m
Deal found 9/8![United Airlines logo]()
$653
Last-minute flights from Portland to Keflavik IntlDiscover last-minute flight deals from Portland to Keflavik Intl. Data last updated September 12, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Keflavik Intl. Data last updated September 12, 2026 and is based on user searches.
This Gotogate deal was found by Cheapflights users on 9/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1510:10 am -
2 stops14h 45m
Mon 9/2110:00 am -
2 stops32h 28m
Deal found 9/10![Air Canada logo]()
$469
This United Airlines deal was found by Cheapflights users on 9/10. 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 9/158:05 am -
1 stop17h 45m
Mon 9/2110:00 am -
2 stops33h 00m
Deal found 9/10![United Airlines logo]()
$470
This Justfly.com deal was found by Cheapflights users on 9/10. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2810:10 am -
2 stops38h 45m
Thu 10/810:00 am -
2 stops30h 31m
Deal found 9/10![Air Canada logo]()
$468
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/48:30 am -
1 stop17h 20m
Thu 10/1512:00 pm -
1 stop17h 23m
Deal found 9/8![United Airlines logo]()
$471
This Justfly.com deal was found by Cheapflights users on 9/8. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/73:30 pm -
Nonstop7h 45m
Tue 10/134:50 pm -
Nonstop8h 05m
Deal found 9/8![Icelandair logo]()
$437
This Mytrip deal was found by Cheapflights users on 9/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/143:30 pm -
Nonstop7h 45m
Mon 10/264:50 pm -
Nonstop8h 10m
Deal found 9/11![Icelandair logo]()
$424
This Justfly.com deal was found by Cheapflights users on 9/9. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:45 pm -
2 stops29h 10m
Thu 10/2210:00 am -
2 stops43h 23m
Deal found 9/9![Air Canada logo]()
$455
This Air Canada deal was found by Cheapflights users on 9/10. 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.
Fri 10/163:30 pm -
2 stops33h 25m
Fri 10/239:15 am -
2 stops40h 56m
Deal found 9/10![Air Canada logo]()
$463
This oojo deal was found by Cheapflights users on 9/11. 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 10/193:30 pm -
Nonstop7h 45m
Fri 10/234:50 pm -
Nonstop8h 05m
Deal found 9/11![Icelandair logo]()
$430
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/213:30 pm -
Nonstop7h 45m
Mon 10/264:50 pm -
Nonstop8h 10m
Deal found 9/10![Icelandair logo]()
$426
This Mytrip deal was found by Cheapflights users on 9/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/263:45 pm -
Nonstop7h 30m
Fri 10/304:50 pm -
Nonstop8h 10m
Deal found 9/9![Icelandair logo]()
$425
This Icelandair deal was found by Cheapflights users on 9/9. 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 10/313:45 pm -
Nonstop7h 30m
Wed 11/114:50 pm -
Nonstop8h 10m
Deal found 9/9![Icelandair logo]()
$449
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 September 12, 2026.
Search for one-way flight options from Portland to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Sat 9/195:41 pm -
2 stops30h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$408
This Priceline deal was found by Cheapflights users on 9/8. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:45 pm -
2 stops29h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Air Canada logo]()
$409
This Priceline deal was found by Cheapflights users on 9/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:45 pm -
2 stops30h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Air Canada logo]()
$414
This oojo deal was found by Cheapflights users on 9/11. 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 11/22:45 pm -
Nonstop7h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Icelandair logo]()
$416
This oojo deal was found by Cheapflights users on 9/9. 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.
Wed 10/73:30 pm -
Nonstop7h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Icelandair logo]()
$426
This Mytrip deal was found by Cheapflights users on 9/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/123:30 pm -
3 stops33h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Air Canada logo]()
$461
This FlightHub deal was found by Cheapflights users on 9/9. 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.
Fri 1/82:45 pm -
Nonstop7h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Icelandair logo]()
$479
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Mon 1/112:45 pm -
Nonstop7h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Icelandair logo]()
$484
This KAYAK deal was found by Cheapflights users on 9/9. 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.
Thu 1/71:39 pm -
2 stops39h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![SWISS logo]()
$490
This Travelocity deal was found by Cheapflights users on 9/9. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/910:00 am -
2 stops20h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$492
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Sun 1/104:03 pm -
2 stops23h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$497
Find flight deals from Portland to Keflavik Intl
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) 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 September 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $425 (Mytrip) |
One-way from | $408 (Kiwi.com) |
Popular in | February |
Cheapest in | October |
Average price | $621 |
Good round-trip deal | $578 or less |
Good one-way deal | $305 or less |
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 September 12, 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
PDX Portland - KEF Reykjavik Keflavik Intl
PDXKEF
Portland
Sun 9/20
7:45 pm-8:45 am
2 stops30h 00m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$414
PortlandReykjavik
PDX Portland - KEF Reykjavik Keflavik Intl
PDXKEF
Portland
Sun 10/11
7:45 pm-8:45 am
2 stops30h 00m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$414
Quickest round-trip
PortlandReykjavik
PDX Portland - KEF Reykjavik Keflavik Intl
PDXKEF
Portland
Wed 10/7
3:30 pm-6:15 am
Nonstop7h 45m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$426
PortlandReykjavik
PDX Portland - KEF Reykjavik Keflavik Intl
PDXKEF
Portland
Sun 10/4
1:35 pm-7:00 am
1 stop10h 25m
Reykjavik Keflavik Intl
Fri 10/16
11:25 am-8:46 am
2 stops28h 21m
$478
PortlandReykjavik
PDX Portland - KEF Reykjavik Keflavik Intl
PDXKEF
Portland
Fri 1/8
7:00 am-5:35 pm
3 stops26h 35m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$498
PortlandReykjavik
PDX Portland - KEF Reykjavik Keflavik Intl
PDXKEF
Portland
Fri 1/8
7:01 am-2:25 pm
2 stops47h 24m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$526
PortlandReykjavik
PDX Portland - KEF Reykjavik Keflavik Intl
PDXKEF
Portland
Wed 9/16
10:56 am-7:00 am
1 stop13h 04m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$530
PortlandReykjavik
PDX Portland - KEF Reykjavik Keflavik Intl
PDXKEF
Portland
Mon 11/2
8:08 am-6:15 am
1 stop14h 07m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$536
PortlandReykjavik
PDX Portland - KEF Reykjavik Keflavik Intl
PDXKEF
Portland
Fri 1/8
5:45 pm-10:45 am
1 stop33h 00m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$540
PortlandReykjavik
PDX Portland - KEF Reykjavik Keflavik Intl
PDXKEF
Portland
Sun 9/20
6:00 am-7:00 am
1 stop18h 00m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$547
Showing 1-10 of 17 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 September.
| 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-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-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland-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-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.
PDX-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.
Cheapflights Insights
Everything you need to know about your flight from Portland to Reykjavik Keflavik Intl Airport
How far ahead should I book a flight from Portland to Reykjavik Keflavik Intl Airport?
The best time to book flights from Portland to Reykjavik Keflavik Intl Airport is 63 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest time of day to fly from PDX to KEF?
Find hourly flight availability from Portland to Keflavik Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 12, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland to Reykjavik Keflavik Intl Airport as you normally would.
How much does it cost to fly round-trip from Portland to Reykjavik Keflavik Intl Airport?
Airfare is below average for this route at the moment.
Portland to Reykjavik Keflavik Intl Airport flights typically cost between $483 and $792 in October.The cheapest round-trip price found within the last 5 days was $424 on Icelandair (Oct 14-Oct 26).
Reviews of airlines servicing Keflavik Intl
Get insights into the airlines that provide service to Keflavik Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Keflavik Intl. Reviews last updated September 12, 2026.
Get a feel of what it's like to fly with Alaska Airlines,United Airlines, andIcelandair from Portland to Reykjavik Keflavik Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Overall
7.9
Entertainment
7.0
Comfort
7.8
Food
7.0
Crew
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Boarding
8.1
Overall
7.9
Entertainment
7.0
Comfort
7.8
Food
7.0
Crew
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Boarding
8.1
Overall
7.9
Entertainment
7.0
Comfort
7.8
Food
7.0
Crew
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
Boarding
8.1
Overall
7.9
Entertainment
7.0
Comfort
7.8
Food
7.0
Crew
8.5
Reviews
1 / 20
8.0
ExcellentAnonymous,Nov 2025
PDX - BNA
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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Top 3 airlines flying from Portland to Keflavik Intl
Discover the top 3 airlines that operate flights from Portland to Keflavik Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$399 | Average$719 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$454 | Average$612 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$601 | Average$994 | FlexibilityNo cancel fee | On-time75% |