• Sign in
Privacy Preferences
United Kingdom (English)
English

Cheap flights from Philadelphia to London from £152

This is the cheapest one-way flight price, found on 6/12. Prices may vary by date and flight preferences.
PHL — LON
12 Dec — 19 Dec1
1 adult
Tue 12/12
Tue 19/12

The best prices from Philadelphia to London are usually found in February or November, booked 24 days in advance, depart on a Tuesday or Monday and return on a Wednesday

Were you looking for Flights from London to Philadelphia?

How to find the cheapest flight from Philadelphia (PHL) to London (LON)

Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to London (LON). 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 8 December 2023.

Popular in

June

Cheapest in

February

Average price

£815

Round-trip from

£59
High demand for flights, 32% potential price rise
Best time to find cheap flights, 21% potential price drop
Average for round-trip flights in December 2023
From Philadelphia to London (LON)

What is the cheapest day to fly round-trip from Philadelphia to London?

Friday flights are generally found to be more expensive for flights from Philadelphia to London. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to London.

How far in advance should I book a flight from Philadelphia to London?

Travelers have found it’s best to book a flight 25 days in advance to save up to 45% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 25 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Philadelphia to London 1-2 weeks in advance for as low as £624, or £808 for flights within the next 24 hours.

What is the cheapest month to fly from Philadelphia to London?

February can be a great time to fly to London from Philadelphia with a flight ticket averaging about £759. Cheapflights users have found deals in the month of February for as cheap as £438. The most expensive prices can be found in the month of June.

When is the cheapest time to fly from Philadelphia to London (PHL - LON)?

Unlike in the evening, when flights are generally more expensive, you can save up to 25% on flights from Philadelphia to London by exploring options for tickets at midday.

Cheap Iberia flights from Philadelphia to London

Explore cheap flight options specifically provided by Iberia for the route between Philadelphia and London. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 800,620 searches. Data last updated 8 December 2023.
Consider these cheap Iberia flights we've found departing from Philadelphia to London. Make sure to check back often as deals are often changing.
  • One of the most popular airlines travelling from Philadelphia to London is Iberia. Flights on this route from Iberia typically cost £1,239.19 RT, a price that is 55% more expensive than the average Philadelphia to London flight. The cheapest flight found was £671 RT. The most popular departure airport in Philadelphia when flying to London is Philadelphia Airport. The most popular airport to fly into when visiting London is London Heathrow Airport. When flying from Philadelphia to London, Iberia flights are 7% more popular than any other airline flying that same route.

Cheap United Airlines flights from Philadelphia to London

Explore cheap flight options specifically provided by United Airlines for the route between Philadelphia and London. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 800,620 searches. Data last updated 8 December 2023.
Some of the lowest-priced United Airlines flights we've found at this time heading from Philadelphia to London. Deals frequently update to provide users with more options.
  • If you’re travelling from Philadelphia to London, one of the more common airlines travelling that route is United Airlines. Flights on this route from United Airlines typically cost £640.16 RT, a price that is 86% cheaper than the average Philadelphia to London flight. The cheapest flight found was £568 RT. When travelling from Philadelphia to London on United Airlines, the most popular airport to depart from is Philadelphia Airport and the most popular airport to arrive at is London Heathrow Airport. When flying from Philadelphia to London, United Airlines flights are 0% more popular than any other airline flying that same route.

Cheap Philadelphia to London flights in December & January 2023

Find cheap flight options from Philadelphia to London specifically for the months of December and January 2023. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 800,620 searches. Prices were last updated on 8 December 2023.
Check out some of the best flight deals from Philadelphia to London in 2023. Check back soon for alternative fares.

Philadelphia to London 2023 flight deals

Discover exclusive flight deals for travel between Philadelphia and London in 2023. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 800,620 searches. Data last updated 8 December 2023.
Check out some of the best flight deals from Philadelphia to London in 2023. Check back soon for alternative fares.

Direct flights to London from Philadelphia

Discover direct flight options from Philadelphia to London. Find direct flights with no stopovers, providing a convenient travel experience. Explore direct flight options based on user searches, and compare prices and availability for your desired travel dates. Over the last 7 days, Cheapflights users made 800,620 searches. Data last updated 8 December 2023.
If you're seeking options on non-stop flights from Philadelphia to London, check out these fares. If you're looking for other options for flights from Philadelphia to London, make sure to update the search form at the top of page.

Philadelphia to London flights leaving soon

Find last-minute flight options from Philadelphia to London for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 800,620 searches. Data last updated 8 December 2023.
Users seeking a last-minute flight from Philadelphia to London should consider booking one of these fares. Tip: verify your flight details before completing your reservation.

One-way flights to London from Philadelphia

Search for one-way flight options from Philadelphia to London. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 800,620 searches. Data last updated 8 December 2023.
Take a look at some of the one-way flights we've detected from Philadelphia to London. For those needing a return trip from Philadelphia, there is a search form available above.

Find flights from Philadelphia to London within your budget

Customise your flight search to find flights from Philadelphia to London 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 800,620 searches. Data last updated 8 December 2023.

Fly from

Any airport

Fly to

Any airport

Budget

£427 - £613

Route

Depart

Return

Price

PhiladelphiaLondon Gatwick

PHL - LGW

PHLLGW

Philadelphia

Sat 13/1

1 stop14h 59m

London Gatwick

Wed 31/1

2 stops34h 05m

£427

PhiladelphiaLondon Heathrow

PHL - LHR

PHLLHR

Philadelphia

Thu 15/2

1 stop11h 09m

London Heathrow

Tue 20/2

2 stops17h 35m

£516

PhiladelphiaLondon Gatwick

PHL - LGW

PHLLGW

Philadelphia

Tue 19/3

1 stop9h 35m

London Gatwick

Sat 30/3

1 stop15h 19m

£516

PhiladelphiaLondon Heathrow

PHL - LHR

PHLLHR

Philadelphia

Tue 30/1

1 stop15h 15m

London Heathrow

Thu 1/2

Nonstop8h 20m

£567

PhiladelphiaLondon Heathrow

PHL - LHR

PHLLHR

Philadelphia

Fri 29/12

1 stop21h 00m

London Heathrow

Sun 7/1

2 stops19h 41m

£573

PhiladelphiaLondon Heathrow

PHL - LHR

PHLLHR

Philadelphia

Mon 26/2

1 stop17h 05m

London Heathrow

Tue 5/3

1 stop13h 35m

£600

PhiladelphiaLondon Heathrow

PHL - LHR

PHLLHR

Philadelphia

Fri 12/1

1 stop13h 40m

London Heathrow

Sun 21/1

1 stop15h 22m

£601

PhiladelphiaLondon Gatwick

PHL - LGW

PHLLGW

Philadelphia

Sat 23/3

1 stop9h 25m

London Gatwick

Sun 31/3

1 stop13h 15m

£607

PhiladelphiaLondon Gatwick

PHL - LGW

PHLLGW

Philadelphia

Wed 31/1

2 stops20h 30m

London Gatwick

Thu 8/2

2 stops14h 18m

£613

Flights are sorted by cheapest first

Deals found on 6/12

Average price of flights to London by month

Plan your trip from Philadelphia to London by taking into account the cheapest months to travel. The average price of a one-way flight from Philadelphia to London is currently 166.35 GBP while a return flight costs 557.82 GBP. Price data was last updated on 3 December 2023.

Currently, November is the cheapest month in which you can book a flight from Philadelphia to London (average of £114). Flying from Philadelphia to London in July is currently the most expensive (average of £162). 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.

January

£96

February

£113

March

£95

April

£105

May

£105

June

£125

July

£129

August

£102

September

£109

October

£128

November

£91

December

£99

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 8 December 2023.
Get a feel of what it's like to fly with Iberia, United Airlines and Aer Lingus from Philadelphia to London by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
7.9
Good
3,035 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.9

Boarding

8.0

Reviews

1 / 10

The flight was redirected while in flight and i understand why that could not be helped. HOWEVER, there were no instructions of what to expect while we were on the plane. That would have eliminated much angst with many passengers. The gate agents were really trying to answer questions….and one in particular was down right unaware of the feelings of the passengers. She did not listen to the questions, just kept repeating the same mantra….just being a little helpful would have gone a long way to calm people down. She literally could have made the experience much more tolerable. I wish i knew her name so you could help her understand the impact she had on several people, which spread throughout many passengers.

7.9
Good
3,035 reviews
7.9
Good
3,035 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.9

Boarding

8.0

Reviews

1 / 10

The flight was redirected while in flight and i understand why that could not be helped. HOWEVER, there were no instructions of what to expect while we were on the plane. That would have eliminated much angst with many passengers. The gate agents were really trying to answer questions….and one in particular was down right unaware of the feelings of the passengers. She did not listen to the questions, just kept repeating the same mantra….just being a little helpful would have gone a long way to calm people down. She literally could have made the experience much more tolerable. I wish i knew her name so you could help her understand the impact she had on several people, which spread throughout many passengers.

7.6
Good
276 reviews
7.9
Good
3,035 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.9

Boarding

8.0

Reviews

1 / 10

The flight was redirected while in flight and i understand why that could not be helped. HOWEVER, there were no instructions of what to expect while we were on the plane. That would have eliminated much angst with many passengers. The gate agents were really trying to answer questions….and one in particular was down right unaware of the feelings of the passengers. She did not listen to the questions, just kept repeating the same mantra….just being a little helpful would have gone a long way to calm people down. She literally could have made the experience much more tolerable. I wish i knew her name so you could help her understand the impact she had on several people, which spread throughout many passengers.

7.5
Good
342 reviews
7.9
Good
3,035 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.9

Boarding

8.0

Reviews

1 / 10

The flight was redirected while in flight and i understand why that could not be helped. HOWEVER, there were no instructions of what to expect while we were on the plane. That would have eliminated much angst with many passengers. The gate agents were really trying to answer questions….and one in particular was down right unaware of the feelings of the passengers. She did not listen to the questions, just kept repeating the same mantra….just being a little helpful would have gone a long way to calm people down. She literally could have made the experience much more tolerable. I wish i knew her name so you could help her understand the impact she had on several people, which spread throughout many passengers.

7.4
Good
198 reviews
7.9
Good
3,035 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.9

Boarding

8.0

Reviews

1 / 10

The flight was redirected while in flight and i understand why that could not be helped. HOWEVER, there were no instructions of what to expect while we were on the plane. That would have eliminated much angst with many passengers. The gate agents were really trying to answer questions….and one in particular was down right unaware of the feelings of the passengers. She did not listen to the questions, just kept repeating the same mantra….just being a little helpful would have gone a long way to calm people down. She literally could have made the experience much more tolerable. I wish i knew her name so you could help her understand the impact she had on several people, which spread throughout many passengers.

7.4
Good
1,902 reviews
7.9
Good
3,035 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.9

Boarding

8.0

Reviews

1 / 10

The flight was redirected while in flight and i understand why that could not be helped. HOWEVER, there were no instructions of what to expect while we were on the plane. That would have eliminated much angst with many passengers. The gate agents were really trying to answer questions….and one in particular was down right unaware of the feelings of the passengers. She did not listen to the questions, just kept repeating the same mantra….just being a little helpful would have gone a long way to calm people down. She literally could have made the experience much more tolerable. I wish i knew her name so you could help her understand the impact she had on several people, which spread throughout many passengers.

Average temperature in London by month

Plan your trip to London by selecting the month that matches your preferred temperature. July sees the highest average temperature while January sees the lowest average temperature. Temperature data was last updated on 3 December 2023.

LON

Temperature

4 - 17 °C

Average rainfall in London by month

Keep in mind the precipitation totals in London by selecting the month that matches your preferred temperature. London sees an average of 57.50 precipitation per year with the most occurring in January. Precipitation data was last updated on 3 December 2023.

LON

Rainfall

40 - 70 mm

Related info for your journey

Find useful and relevant information for your journey from Philadelphia to London. 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 London?

Located just 7.0 mi from the city center, Philadelphia is the airport most travelers will use when flying to London from Philadelphia. Booking flights from Philadelphia (PHL) to London should be relatively easy as there are 12 daily outbound flights to London from 7 different airlines.

Can I find flights from Philadelphia to London for under £500 on Cheapflights?

Yes, there are multiple flights from Philadelphia to London for under £500. The cheapest flight booked recently is on Multiple Airlines for just £427, but on average you can expect to pay £442.

Are there nonstop flights from Philadelphia to London for under £700 on Cheapflights?

Cheapflights has at least 20 direct flights from Philadelphia to London under £700. A good price for a nonstop flight from Philadelphia to London is less than £701.

Are there last-minute flights available from Philadelphia to London for under £500?

There are currently 20+ open flights from Philadelphia to London within the next 7 days for less than £500.

What are the most popular routes from Philadelphia to London?

What are the most popular airlines that fly from Philadelphia to London?

What are the most reliable airlines from Philadelphia to London?

Consider Qatar Airways (86%), Malaysia Airlines (86%) or EL AL (86%) when booking your flight. These represent the most reliable airlines when flying from Philadelphia to London.

What are the cheapest flights from Philadelphia to London?

Looking for the cheapest flight from Philadelphia to London? While on average our users pay £652, our data indicates the cheapest price to be £543. The most popular route (Philadelphia - London Heathrow), is priced around £505.

What does PHL to LHR mean?

Philadelphia Airport is PHL and London Heathrow Airport is LHR. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: London Gatwick Airport (LGW), London City Airport (LCY), London Stansted Airport (STN), London Luton Airport (LTN), London Southend Airport (SEN).

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.