
$948 Cheap Icelandair flights from London to Philadelphia (LHR to PHL)
Find The Best Day To Fly from London to Philadelphia
Amazing Icelandair LHR to PHL Flight Deals
The cheapest flights to Philadelphia Intl. found within the past 7 days were $822 round trip and $948 one way. Prices and availability subject to change. Additional terms may apply.
Frequently asked questions
Discover our best Icelandair flight from London LHR to Philadelphia PHL
To find the best deals on flights to London from Philadelphia with Icelandair, just enter your travel dates, filter by Icelandair, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.
Return flights from London LHR to Philadelphia PHL with Icelandair
If you’re planning a round trip, booking return flights with Icelandair is usually the most cost-effective option. With airfares ranging from $822 to $948, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply.
Book one-way Icelandair flights from London LHR to Philadelphia PHL
A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way Icelandair flight from London to Philadelphia costs from $948. Prices and availability subject to change. Additional terms may apply.
The easy way to find cheap flights to Philadelphia PHL from London LHR with Icelandair
To find a cheap Icelandair flight from London LHR to Philadelphia PHL, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference.
How to find our best airfare deals on Icelandair flights from London LHR to Philadelphia PHL
If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as October, or if you book a flight with a stopover.
Find nonstop flights from London LHR to Philadelphia PHL with Icelandair
If you’re keen to be on Philadelphia soil fast, don’t waste time with a stopover—filter your search results to show direct Icelandair flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it.
Flexible airline tickets for Icelandair flights from London LHR to Philadelphia PHL
Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.
There are a lot of reasons to book your flights to Philadelphia PHL from London LHR with Icelandair on Travelocity
At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.
Airport code | Country | Airport name | Number of flights |
---|---|---|---|
KEF | ISL | Keflavik Intl. | 23 |
SEA | USA | Seattle - Tacoma Intl. | 3 |
TPA | USA | Tampa Intl. | 2 |
CPH | DNK | Kastrup | 2 |
SFO | USA | San Francisco Intl. | 2 |
LAX | USA | Los Angeles Intl. | 2 |
MCO | USA | Orlando Intl. | 2 |
HEL | FIN | Vantaa | 2 |
LHR | GBR | Heathrow | 2 |
ORD | USA | O'Hare Intl. | 1 |
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Reviewed on May 18, 2025

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Popular Icelandair Flight Routes from LHR
Top Icelandair Flight Routes from PHL
Top Flights for Icelandair originating from LHR
Domestic
- Los Angeles to Paris (LAX - CDG)
- New York to London (JFK - LHR)
- Boston to Rome (BOS - FCO)
- Chicago to London (ORD - LHR)
- San Francisco to London (SFO - LHR)
- New York to Rome (JFK - FCO)
- Boston to London (BOS - LHR)
- Chicago to Rome (ORD - FCO)
- Baltimore to London (BWI - LHR)
- Boston to Dublin (BOS - DUB)
International
- New York to Rome (JFK - FCO)
- San Francisco to Paris (SFO - CDG)
- Washington to Rome (IAD - FCO)
- Boston to London (BOS - LHR)
- Washington to Paris (IAD - CDG)
- San Francisco to London (SFO - LHR)
- Newark Liberty Intl. Airport to Paris (EWR - CDG)
- Boston to Dublin (BOS - DUB)
- San Francisco to London (SFO - LHR)
- Los Angeles to Paris (LAX - CDG)