HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Keflavik Intl

$237+ Cheap flights from Portland (PDX) 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — KEF
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
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.

Cheapflights Tip: The best prices from Portland to Reykjavik Keflavik Intl are usually found in November or October, booked 82 days in advance, depart on a Tuesday or Saturday and return on a Tuesday

Cheap 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 septiembre 17, 2025.

Round-trip from

$405
(Ticket)

One-way from

$237
(oojo)

Popular in

January

Cheapest in

November

Average price

$689

Good round-trip deal

$467 or less

Good one-way deal

$404 or less
From Portland to Reykjavik Keflavik Intl
Search Deals
One-way flight from Portland to Reykjavik Keflavik Intl
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($278 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($50 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals
Price to beat on a round-trip flight from Portland to Reykjavik Keflavik Intl.
Search Deals
Price to beat on a one-way flight from Portland to Reykjavik Keflavik Intl.
Search Deals

Find 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 septiembre 17, 2025.

This Ticket deal was found by Cheapflights users on 9/15. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/133:20 pmPDX - KEF
Nonstop7h 35mIcelandair
mar. 10/214:50 pmKEF - PDX
Nonstop8h 05mIcelandair
Deal found 9/15$405
This FlightHub deal was found by Cheapflights users on 9/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/133:20 pmPDX - KEF
Nonstop7h 35mIcelandair
mié. 10/224:50 pmKEF - PDX
Nonstop8h 05mIcelandair
Deal found 9/17$437
This Icelandair deal was found by Cheapflights users on 9/17. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/133:20 pmPDX - KEF
Nonstop7h 35mIcelandair
jue. 10/234:50 pmKEF - PDX
Nonstop8h 05mIcelandair
Deal found 9/17$449
This FlightHub deal was found by Cheapflights users on 9/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/243:20 pmPDX - KEF
Nonstop7h 35mIcelandair
mié. 10/294:50 pmKEF - PDX
Nonstop8h 10mIcelandair
Deal found 9/17$465
This Air France deal was found by Cheapflights users on 9/15. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/57:15 amPDX - KEF
1 stop19h 15mAir France
lun. 10/138:45 amKEF - PDX
1 stop20h 03mAir France
Deal found 9/15$473
This Icelandair deal was found by Cheapflights users on 9/15. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/32:45 pmPDX - KEF
Nonstop7h 30mIcelandair
mié. 11/124:50 pmKEF - PDX
Nonstop8h 10mIcelandair
Deal found 9/15$477
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/410:45 pmPDX - KEF
2 stops27h 45mDelta
lun. 10/1311:25 amKEF - PDX
1 stop16h 39mDelta
Deal found 9/15$478
This KLM deal was found by Cheapflights users on 9/15. 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.
mar. 9/231:25 pmPDX - KEF
1 stop13h 05mMultiple Airlines
mar. 9/3011:25 amKEF - PDX
1 stop16h 40mMultiple Airlines
Deal found 9/15$486
This Flightnetwork deal was found by Cheapflights users on 9/15. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/243:20 pmPDX - KEF
Nonstop7h 35mIcelandair
lun. 10/274:50 pmKEF - PDX
Nonstop8h 10mIcelandair
Deal found 9/15$489
This United Airlines deal was found by Cheapflights users on 9/16. 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.
mié. 9/1710:55 amPDX - KEF
2 stops14h 35mUnited Airlines
mié. 9/2411:00 amKEF - PDX
2 stops16h 03mUnited Airlines
Deal found 9/16$490
This Delta deal was found by Cheapflights users on 9/14. 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.
vie. 10/31:25 pmPDX - KEF
2 stops57h 55mDelta
mar. 10/1411:25 amKEF - PDX
2 stops19h 32mDelta
Deal found 9/14$491

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 septiembre 17, 2025.
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

PDX - KEF

PDXKEF

Portland

lun. 11/3

2:45 pm-6:15 am

Nonstop7h 30m

Reykjavik Keflavik Intl

mié. 11/12

4:50 pm-5:00 pm

Nonstop8h 10m

$477

PortlandReykjavik

PDX - KEF

PDXKEF

Portland

sáb. 10/4

10:45 pm-9:30 am

2 stops27h 45m

Reykjavik Keflavik Intl

lun. 10/13

8:45 am-11:43 pm

2 stops21h 58m

$478

PortlandReykjavik

PDX - KEF

PDXKEF

Portland

dom. 10/5

6:20 am-6:20 am

2 stops17h 00m

Reykjavik Keflavik Intl

mar. 10/14

11:25 am-11:43 pm

2 stops19h 18m

$478

PortlandReykjavik

PDX - KEF

PDXKEF

Portland

mar. 9/23

1:25 pm-9:30 am

1 stop13h 05m

Reykjavik Keflavik Intl

mar. 9/30

11:25 am-9:05 pm

1 stop16h 40m

$486

PortlandReykjavik

PDX - KEF

PDXKEF

Portland

vie. 10/3

10:05 pm-9:30 am

2 stops52h 25m

Reykjavik Keflavik Intl

lun. 10/13

11:25 am-10:16 am

2 stops29h 51m

$491

PortlandReykjavik

PDX - KEF

PDXKEF

Portland

lun. 10/6

1:40 pm-9:30 am

1 stop12h 50m

Reykjavik Keflavik Intl

lun. 10/13

11:25 am-9:04 pm

1 stop16h 39m

$593

PortlandReykjavik

PDX - KEF

PDXKEF

Portland

mié. 10/1

12:45 am-6:20 am

2 stops22h 35m

Reykjavik Keflavik Intl

lun. 10/13

8:45 am-9:48 pm

1 stop20h 03m

$598

PortlandReykjavik

PDX - KEF

PDXKEF

Portland

lun. 11/3

2:45 pm-6:15 am

Nonstop7h 30m

Reykjavik Keflavik Intl

vie. 11/7

4:50 pm-5:00 pm

Nonstop8h 10m

$609

PortlandReykjavik

PDX - KEF

PDXKEF

Portland

lun. 10/6

1:45 pm-8:15 am

1 stop11h 30m

$247

PortlandReykjavik

PDX - KEF

PDXKEF

Portland

mié. 10/8

6:15 am-8:15 am

2 stops19h 00m

$261

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 16 results
1
2

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

How far ahead should I book a flight from Portland to Reykjavik Keflavik Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Keflavik Intl. Price data was last updated on September 12, 2025.

The best time to book flights from Portland to Reykjavik Keflavik Intl Airport is 82 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 month to book a flight from Portland to Reykjavik Keflavik Intl Airport?

Currently, November is the cheapest month in which you can book a flight from Portland to Reykjavik Keflavik Intl Airport (average of $328). Flying from Portland to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $656). 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.

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 septiembre 17, 2025.

When flying from Portland to Reykjavik Keflavik Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 33% versus a flight in the evening.

What is the cheapest day to fly from Portland to Reykjavik Keflavik Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Portland to Keflavik Intl. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Portland to Reykjavik Keflavik Intl Airport flight should consider departing on Tuesday at noon when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Portland to Reykjavik Keflavik Intl Airport?

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 septiembre 17, 2025.
Get a feel of what it's like to fly with Delta and Icelandair 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.
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Icelandair
7.0
Good
545 reviews
Delta
8.0
Very good
7,961 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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?

    Most people fly from Portland (PDX) if they book a flight from Portland to Reykjavik Keflavik Intl. On average, Portland has 1 outbound flight to Reykjavik Keflavik Intl per day from 2 airlines. Portland is conveniently located just 6.0 mi from Portland’s city center.

  • How long is the flight from Portland to Reykjavik Keflavik Intl Airport?

    Icelandair and Delta can get you from Portland to Reykjavik Keflavik Intl Airport in just under 7h 30m. Your travel time can differ by up to 20h 15m. Airlines will cover a distance of 3724 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Portland to Reykjavik Keflavik Intl Airport round-trip?

    Currently priced at $363, Icelandair will fly you from Portland to Reykjavik Keflavik Intl Airport and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Delta for as low as $424. Icelandair is currently priced 56% below the average price you’ll pay for this route.

  • What are the cheapest flights from Portland to Reykjavik Keflavik Intl Airport?

    The cheapest flight price from Portland to Reykjavik Keflavik Intl Airport is $330. On average you can expect to pay $962. The most popular route, (Portland - Reykjavik Keflavik Intl), can usually be booked for $387.

  • 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 to Reykjavik Keflavik Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Portland to Reykjavik Keflavik Intl Airport (average of $328). Flying from Portland to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $656). 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

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.

Top 2 airlines flying from Portland to Keflavik Intl

Discover the top 2 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 2,558,603 searches. Data last updated septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$363Average$723FlexibilityNo cancel feeOn-time76%
DeltaCheapest$424Average$690FlexibilityNo cancel feeOn-timeN/A

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.