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Keflavik Intl

$340+ Cheap flights from Philadelphia (PHL) 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 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — KEF
Mar 26 — Apr 21
Thu 3/26
Thu 4/2
1 adult, Economy
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Cheap flight deals from Philadelphia to Keflavik Intl

Cheapest flights from Philadelphia to Keflavik Intl
Explore the most affordable flight options available from Philadelphia to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 24, 2026.

This American Airlines deal was found by Cheapflights users on 2/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/87:35 pm
PHL
-
KEF
1 stop34h 05m
American Airlines
Wed 4/1511:00 am
KEF
-
PHL
1 stop32h 30m
American Airlines
Deal found 2/21$491
This American Airlines deal was found by Cheapflights users on 2/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2910:05 pm
PHL
-
KEF
1 stop31h 35m
American Airlines
Wed 5/611:00 am
KEF
-
PHL
1 stop29h 05m
American Airlines
Deal found 2/21$506
This United Airlines deal was found by Cheapflights users on 2/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/123:25 pm
PHL
-
KEF
1 stop12h 30m
United Airlines
Thu 8/209:15 am
KEF
-
PHL
2 stops19h 17m
United Airlines
Deal found 2/23$508
This Air France deal was found by Cheapflights users on 2/21. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2912:29 pm
PHL
-
KEF
2 stops17h 01m
Air France
Wed 5/611:25 am
KEF
-
PHL
2 stops15h 25m
Air France
Deal found 2/21$510
This Finnair deal was found by Cheapflights users on 2/20. 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.
Tue 4/76:30 pm
PHL
-
KEF
2 stops18h 00m
Finnair
Tue 4/145:15 pm
KEF
-
PHL
2 stops25h 10m
Finnair
Deal found 2/20$512
This United Airlines deal was found by Cheapflights users on 2/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/263:25 pm
PHL
-
KEF
1 stop12h 30m
United Airlines
Tue 9/19:15 am
KEF
-
PHL
2 stops31h 10m
United Airlines
Deal found 2/22$514
This United Airlines deal was found by Cheapflights users on 2/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/144:20 pm
PHL
-
KEF
1 stop12h 25m
United Airlines
Wed 10/219:15 am
KEF
-
PHL
1 stop9h 32m
United Airlines
Deal found 2/23$519
This United Airlines deal was found by Cheapflights users on 2/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/810:15 am
PHL
-
KEF
1 stop18h 35m
United Airlines
Tue 9/1510:00 am
KEF
-
PHL
2 stops35h 22m
United Airlines
Deal found 2/22$520

Find flight deals from Philadelphia to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) 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 February 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$491
(American Airlines)

One-way from

$340
(Kiwi.com)

Popular in

July

Cheapest in

May

Average price

$743
Provider with most accurate pricing for Philadelphia-Reykjavik Keflavik Intl flight deals.
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Provider most trusted by Cheapflights users for Philadelphia-Reykjavik Keflavik Intl flights.
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From Philadelphia to Reykjavik Keflavik Intl
Search Deals
One-way flight from Philadelphia to Reykjavik Keflavik Intl
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($121 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in February 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Philadelphia 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 February 24, 2026.
Use the filters below to find and compare flights from Philadelphia to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Philadelphia

Fly to

Keflavik Intl

Route

Depart

Return

Price

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Mon 8/17

6:10 am-8:50 am

1 stop22h 40m

Reykjavik Keflavik Intl

Mon 8/24

10:00 am-9:45 am

1 stop27h 45m

$536

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Fri 8/14

8:26 pm-8:30 am

1 stop32h 04m

Reykjavik Keflavik Intl

Sat 8/22

10:00 am-9:45 am

1 stop27h 45m

$592

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Tue 3/24

7:35 pm-9:15 am

2 stops33h 40m

Reykjavik Keflavik Intl

Sun 3/29

5:15 pm-4:55 pm

2 stops27h 40m

$604

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Tue 7/14

7:45 pm-8:50 am

1 stop9h 05m

Reykjavik Keflavik Intl

Thu 7/23

9:15 am-2:49 pm

1 stop9h 34m

$624

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Wed 5/20

12:36 pm-6:20 am

1 stop13h 44m

Reykjavik Keflavik Intl

Sun 5/31

8:50 am-4:30 pm

1 stop11h 40m

$625

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Sat 7/4

6:10 am-8:50 am

1 stop22h 40m

Reykjavik Keflavik Intl

Sun 7/12

10:00 am-9:45 am

1 stop27h 45m

$746

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Sat 7/4

7:45 pm-8:50 am

1 stop9h 05m

Reykjavik Keflavik Intl

Mon 7/13

9:15 am-2:49 pm

1 stop9h 34m

$754

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Wed 5/27

11:28 am-7:40 am

1 stop16h 12m

Reykjavik Keflavik Intl

Mon 6/1

11:25 am-11:07 pm

2 stops15h 42m

$770

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Sun 7/12

9:12 am-6:05 am

1 stop16h 53m

Reykjavik Keflavik Intl

Mon 7/20

7:55 pm-8:19 am

1 stop16h 24m

$789

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Thu 3/12

7:35 pm-9:15 am

2 stops33h 40m

Reykjavik Keflavik Intl

Mon 3/16

10:00 am-2:10 pm

2 stops32h 10m

$831

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/22

Showing 1-10 of 20 results
1
2

Compare providers for flights from Philadelphia 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 Philadelphia to Keflavik Intl in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Philadelphia-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 Philadelphia-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Philadelphia-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 Philadelphia-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 Philadelphia to Keflavik Intl

Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from Philadelphia 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 Philadelphia to Reykjavik Keflavik Intl Airport

What is the cheapest month to book a flight from Philadelphia to Reykjavik Keflavik Intl Airport?

Currently, June is the cheapest month in which you can book a flight from Philadelphia to Reykjavik Keflavik Intl Airport (average of $187). Flying from Philadelphia to Reykjavik Keflavik Intl Airport in December is currently the most expensive (average of $352). 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.

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 February 24, 2026.
Get a feel of what it's like to fly with United Airlines and Icelandair from Philadelphia 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.
United Airlines
7.4
Good
9,346 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,346 reviews
United Airlines
7.4
Good
9,346 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Icelandair
7.1
Good
617 reviews
United Airlines
7.4
Good
9,346 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Food

6.6

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Philadelphia 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 Philadelphia to Reykjavik Keflavik Intl?

    Philadelphia (PHL), located 7.0 mi from the city center, is the airport you fly out of when you book flights from Philadelphia to Reykjavik Keflavik Intl. 2 airlines have flights from Philadelphia to Reykjavik Keflavik Intl on a regular basis. Booking flights from Philadelphia to Reykjavik Keflavik Intl should not be difficult; the airport handles an average of 0 outbound flights to Reykjavik Keflavik Intl per day.

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

    United Airlines, Finnair, and Delta can get you from Philadelphia to Reykjavik Keflavik Intl Airport in just under 13h 44m. Your travel time can differ by up to 19h 56m. The distance from Philadelphia to Reykjavik Keflavik Intl Airport is about 2672 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Cheapflights users have booked flights from Philadelphia to Reykjavik Keflavik Intl Airport round-trip from $646. Another airline that can offer you cheap pricing is Icelandair. United Airlines is priced at 16% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Philadelphia to Keflavik Intl that include hotel bookings?

    Yes. In addition to deals on Philadelphia to Keflavik Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Philadelphia to Keflavik Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Philadelphia to Keflavik Intl.

  • Can I find deals for business class flights from Philadelphia to Keflavik Intl?

    Yes. Cheapflights offers flight deals from Philadelphia 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 Philadelphia to Reykjavik Keflavik Intl Airport?

    Currently, June is the cheapest month in which you can book a flight from Philadelphia to Reykjavik Keflavik Intl Airport (average of $187). Flying from Philadelphia to Reykjavik Keflavik Intl Airport in December is currently the most expensive (average of $352). 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

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Top 2 airlines flying from Philadelphia to Keflavik Intl

Discover the top 2 airlines that operate flights from Philadelphia 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 February 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$646Average$1,010FlexibilityNo cancel feeOn-time69%
IcelandairCheapest$743Average$934FlexibilityNo cancel feeOn-time76%

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