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Keflavik Intl

$222+ 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — KEF
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap 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 September 17, 2025.

Round-trip from

$502
(Trip.com)

One-way from

$222
(Mytrip)

Popular in

April

Cheapest in

May

Average price

$792
From Philadelphia to Reykjavik Keflavik Intl
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One-way flight from Philadelphia to Reykjavik Keflavik Intl
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Highest demand for flights based on searches. 5% potential increase in price ($54 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 17, 2025.

This Trip.com 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/316:00 amPHL - KEF
1 stop20h 45mMultiple Airlines
Fri 11/74:30 pmKEF - PHL
1 stop13h 29mMultiple Airlines
Deal found 9/17$502
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/136:00 amPHL - KEF
1 stop20h 20mDelta
Tue 10/218:45 amKEF - PHL
2 stops28h 45mDelta
Deal found 9/16$511
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/137:10 pmPHL - KEF
2 stops17h 20mFinnair
Tue 10/215:15 pmKEF - PHL
2 stops25h 25mFinnair
Deal found 9/16$562
This Gurufare 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/76:40 pmPHL - KEF
2 stops17h 35mFinnair
Tue 11/1110:00 amKEF - PHL
2 stops32h 10mFinnair
Deal found 9/17$582
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:35 pmPHL - KEF
2 stops41h 40mFinnair
Thu 11/610:00 amKEF - PHL
2 stops32h 10mFinnair
Deal found 9/15$594
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/225:35 pmPHL - KEF
2 stops26h 35mLufthansa
Wed 10/112:25 amKEF - PHL
1 stop19h 35mLufthansa
Deal found 9/15$602
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/257:00 pmPHL - KEF
2 stops34h 45mBritish Airways
Sun 11/305:55 pmKEF - PHL
2 stops51h 00mBritish Airways
Deal found 9/15$607
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:55 pmPHL - KEF
2 stops17h 20mBritish Airways
Wed 12/1011:50 amKEF - PHL
2 stops32h 40mBritish Airways
Deal found 9/16$620
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/225:35 pmPHL - KEF
2 stops26h 35mLufthansa
Tue 9/301:15 amKEF - PHL
2 stops18h 45mLufthansa
Deal found 9/15$624

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 September 17, 2025.
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 10/13

6:00 am-6:20 am

1 stop20h 20m

Reykjavik Keflavik Intl

Tue 10/21

8:45 am-9:30 am

2 stops28h 45m

$511

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Tue 12/9

6:40 pm-9:15 am

2 stops33h 35m

Reykjavik Keflavik Intl

Sun 12/14

10:00 am-1:55 pm

2 stops32h 55m

$582

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Thu 10/30

7:35 pm-5:15 pm

2 stops41h 40m

Reykjavik Keflavik Intl

Thu 11/6

10:00 am-1:10 pm

2 stops32h 10m

$594

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Fri 10/31

7:35 pm-9:15 am

2 stops33h 40m

Reykjavik Keflavik Intl

Fri 11/7

10:00 am-1:10 pm

2 stops32h 10m

$656

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Tue 9/23

1:00 pm-6:20 am

1 stop13h 20m

Reykjavik Keflavik Intl

Sun 9/28

8:45 am-7:21 pm

1 stop14h 36m

$672

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Sun 9/21

1:00 pm-6:20 am

1 stop13h 20m

Reykjavik Keflavik Intl

Sun 9/28

8:45 am-7:21 pm

1 stop14h 36m

$672

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Thu 12/4

7:45 pm-10:55 am

1 stop34h 10m

Reykjavik Keflavik Intl

Wed 12/10

11:50 am-3:30 pm

2 stops32h 40m

$682

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Thu 11/6

6:40 pm-5:15 pm

2 stops41h 35m

Reykjavik Keflavik Intl

Mon 11/10

10:00 am-1:10 pm

2 stops32h 10m

$702

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Mon 11/17

2:35 pm-6:40 am

1 stop11h 05m

Reykjavik Keflavik Intl

Sat 11/22

4:45 pm-9:09 pm

1 stop9h 24m

$712

PhiladelphiaReykjavik

PHL - KEF

PHLKEF

Philadelphia

Sun 11/9

6:00 am-9:45 pm

1 stop10h 45m

Reykjavik Keflavik Intl

Thu 11/13

9:55 am-3:57 pm

1 stop11h 02m

$749

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 19 results
1
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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, November is the cheapest month in which you can book a flight from Philadelphia to Reykjavik Keflavik Intl Airport (average of $328). Flying from Philadelphia 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 PHL to KEF?

Find hourly flight availability from Philadelphia 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 17, 2025.

When flying from Philadelphia to Reykjavik Keflavik Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 19% versus a flight at noon.

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 17, 2025.
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
8,926 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
United Airlines
7.4
Good
8,926 reviews
United Airlines
7.4
Good
8,926 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.
Icelandair
7.0
Good
545 reviews
United Airlines
7.4
Good
8,926 reviews

Entertainment

7.1

Food

6.6

Overall

7.4

Comfort

7.3

Crew

8.1

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Julia,Sep 2025

BUF - DEN

The staff were amazing, from check in to boarding and on the flight. The range of entertainment options were really good as well.

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?

    Delta and Finnair can get you from Philadelphia to Reykjavik Keflavik Intl Airport in just under 20h 20m. Your travel time can differ by up to 13h 15m. 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 $489. Another airline that can offer you cheap pricing is United Airlines. Icelandair is priced at 47% 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, November is the cheapest month in which you can book a flight from Philadelphia to Reykjavik Keflavik Intl Airport (average of $328). Flying from Philadelphia 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

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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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$489Average$934FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$617Average$1,010FlexibilityNo cancel feeOn-time69%

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