HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Keflavik Intl

$481+ 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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — KEF
May 9 — May 161
Sat 5/9
Sat 5/16
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Philadelphia 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 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 April 9, 2026.

This oojo deal was found by Cheapflights users on 4/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1910:45 am
PHL
-
KEF
1 stop17h 25m
Icelandair
Mon 9/287:55 pm
KEF
-
PHL
1 stop17h 55m
Icelandair
Deal found 4/6$621
This oojo deal was found by Cheapflights users on 4/9. 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 6/37:47 pm
PHL
-
KEF
1 stop8h 23m
Icelandair
Tue 6/97:55 pm
KEF
-
PHL
1 stop16h 35m
Icelandair
Deal found 4/9$622
This FlightHub deal was found by Cheapflights users on 4/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/297:47 pm
PHL
-
KEF
1 stop8h 23m
Icelandair
Sun 6/77:55 pm
KEF
-
PHL
1 stop16h 35m
Icelandair
Deal found 4/6$627
This oojo deal was found by Cheapflights users on 4/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:25 am
PHL
-
KEF
1 stop19h 45m
Icelandair
Sat 5/95:10 pm
KEF
-
PHL
1 stop18h 24m
Icelandair
Deal found 4/6$628
This FlightHub deal was found by Cheapflights users on 4/7. 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.
Tue 9/88:28 am
PHL
-
KEF
1 stop19h 42m
Icelandair
Mon 9/147:55 pm
KEF
-
PHL
1 stop17h 55m
Icelandair
Deal found 4/7$633
This FlightHub deal was found by Cheapflights users on 4/9. 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.
Mon 9/217:00 pm
PHL
-
KEF
1 stop9h 10m
Icelandair
Sun 9/277:55 pm
KEF
-
PHL
1 stop30h 37m
Icelandair
Deal found 4/9$634
This oojo deal was found by Cheapflights users on 4/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/237:47 pm
PHL
-
KEF
1 stop30h 18m
Icelandair
Fri 5/295:10 pm
KEF
-
PHL
1 stop19h 21m
Icelandair
Deal found 4/8$635
This Trip.com deal was found by Cheapflights users on 4/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/178:28 am
PHL
-
KEF
1 stop17h 37m
Icelandair
Thu 9/107:55 pm
KEF
-
PHL
1 stop17h 55m
Icelandair
Deal found 4/5$638
This oojo deal was found by Cheapflights users on 4/5. 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 8/178:28 am
PHL
-
KEF
1 stop17h 37m
Icelandair
Tue 8/257:55 pm
KEF
-
PHL
1 stop15h 43m
Icelandair
Deal found 4/5$639
This FlightHub deal was found by Cheapflights users on 4/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:00 pm
PHL
-
KEF
1 stop9h 10m
Multiple Airlines
Tue 9/297:55 pm
KEF
-
PHL
1 stop17h 55m
Multiple Airlines
Deal found 4/6$640
This oojo deal was found by Cheapflights users on 4/7. 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 9/107:00 pm
PHL
-
KEF
1 stop9h 10m
Icelandair
Sun 9/207:55 pm
KEF
-
PHL
1 stop17h 55m
Icelandair
Deal found 4/7$644
This FlightHub deal was found by Cheapflights users on 4/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/247:47 pm
PHL
-
KEF
1 stop8h 23m
Multiple Airlines
Fri 5/295:10 pm
KEF
-
PHL
1 stop19h 21m
Multiple Airlines
Deal found 4/8$646

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 April 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$621
(oojo)

One-way from

$486
(Kiwi.com)

Popular in

May

Cheapest in

January
Provider with most accurate pricing for Philadelphia-Reykjavik Keflavik Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Philadelphia-Reykjavik Keflavik Intl flights.
Search Deals
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. 20% potential increase in price ($216 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Search Deals

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 April 9, 2026.
Use the filters below to find and compare flights from Philadelphia to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Mon 9/21

7:00 pm-8:10 am

1 stop9h 10m

Reykjavik Keflavik Intl

Sun 9/27

7:55 pm-10:32 pm

1 stop30h 37m

$634

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Mon 5/4

12:29 pm-9:30 am

2 stops17h 01m

Reykjavik Keflavik Intl

Mon 5/11

9:30 am-7:27 pm

2 stops13h 57m

$779

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Tue 9/15

6:50 pm-4:30 pm

2 stops17h 40m

Reykjavik Keflavik Intl

Tue 9/22

5:15 pm-1:15 pm

2 stops24h 00m

$802

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Wed 5/13

9:10 am-8:40 am

1 stop19h 30m

Reykjavik Keflavik Intl

Mon 5/18

7:55 pm-7:34 am

1 stop15h 39m

$816

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Sat 9/19

7:55 pm-8:50 am

2 stops32h 55m

Reykjavik Keflavik Intl

Mon 9/28

10:00 am-9:45 am

1 stop27h 45m

$840

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Mon 9/21

10:05 am-8:45 am

2 stops18h 40m

Reykjavik Keflavik Intl

Sun 9/27

9:15 am-9:45 am

2 stops28h 30m

$853

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Wed 7/8

11:36 am-7:00 am

1 stop15h 24m

Reykjavik Keflavik Intl

Thu 7/16

8:45 am-6:12 pm

2 stops13h 27m

$854

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Thu 8/27

11:30 am-7:00 am

2 stops15h 30m

Reykjavik Keflavik Intl

Mon 8/31

10:00 am-2:05 pm

2 stops32h 05m

$854

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Mon 7/20

8:05 am-7:40 am

2 stops19h 35m

Reykjavik Keflavik Intl

Wed 7/29

9:30 am-11:16 pm

2 stops17h 46m

$854
Quickest round-trip

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Wed 7/22

7:45 pm-8:30 am

1 stop8h 45m

Reykjavik Keflavik Intl

Sun 7/26

11:30 am-6:54 pm

1 stop11h 24m

$920

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/9

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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 April.
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 March is currently the most expensive (average of $366). 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 April 9, 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
9,556 reviews

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Crew

8.1

Food

6.6

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
9,556 reviews
United Airlines
7.4
Good
9,556 reviews

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Crew

8.1

Food

6.6

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
7.0
Good
631 reviews
United Airlines
7.4
Good
9,556 reviews

Boarding

7.7

Comfort

7.3

Overall

7.4

Entertainment

7.1

Crew

8.1

Food

6.6

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?

    Icelandair can get you from Philadelphia to Reykjavik Keflavik Intl Airport in just under 17h 25m. Your travel time can differ by up to . The distance from Philadelphia to Reykjavik Keflavik Intl Airport is about 2672 mi.

  • 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 $585. Another airline that can offer you cheap pricing is United Airlines. Icelandair is priced at 28% 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 March is currently the most expensive (average of $366). 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.

Alternative routes for Philadelphia to Keflavik Intl

See prices for flight routes from nearby airports that may be better suited for you.
Newark to Keflavik Intl flights
John F Kennedy Intl to Keflavik Intl flights
Dulles Intl to Keflavik Intl flights
Reagan-National to Keflavik Intl flights
Pittsburgh to Keflavik Intl flights

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 April 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$585Average$914FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$646Average$943FlexibilityNo cancel feeOn-time69%

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.