London

$180+ Cheap flights from Philadelphia (PHL) to London (LON)

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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — LON
feb. 23 — mar. 21
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The best prices from Philadelphia to London are usually found in February or October, booked 11 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Philadelphia to London

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 febrero 18, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$631
(JetBlue)

One-way from

$180
(Trip.com)

Popular in

June

Cheapest in

February

Average price

$675

Good round-trip deal

$709 or less

Good one-way deal

$513 or less
Provider with most accurate pricing for Philadelphia-London (LON) flight deals.
Provider most trusted by Cheapflights users for Philadelphia-London (LON) flights.
From Philadelphia to London (LON)
One-way flight from Philadelphia to London (LON)
Highest demand for flights based on searches. 19% potential increase in price ($197 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
Average for round-trip flights in February 2025
Price to beat on a round-trip flight from Philadelphia to London (LON).
Price to beat on a one-way flight from Philadelphia to London (LON).

Find flight deals from Philadelphia to London

Cheapest flights from Philadelphia to London
Explore the most affordable flight options available from Philadelphia to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 18, 2025.

This JetBlue Airways deal was found by Cheapflights users on 2/18. 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 JetBlue Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/1610:11 amPHL - LHR
1 stop15h 44mJetBlue
vie. 3/288:25 amLHR - PHL
1 stop12h 59mJetBlue
Deal found 2/18$630
This Booking.com deal was found by Cheapflights users on 2/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/196:30 pmPHL - LHR
1 stop9h 35mAer Lingus
mié. 3/268:50 amLHR - PHL
1 stop12h 10mAer Lingus
Deal found 2/17$632
This JetBlue deal was found by Cheapflights users on 2/18. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/86:37 pmPHL - LGW
1 stop9h 58mJetBlue
jue. 9/1812:10 pmLGW - PHL
1 stop14h 20mJetBlue
Deal found 2/18$633
This Kiwi.com deal was found by Cheapflights users on 2/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/73:35 pmPHL - LGW
1 stop13h 25mMultiple Airlines
lun. 3/1012:00 pmLGW - PHL
1 stop34h 57mMultiple Airlines
Deal found 2/17$637
This Mytrip deal was found by Cheapflights users on 2/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/173:30 pmPHL - STN
2 stops24h 40mMultiple Airlines
lun. 3/248:55 pmSTN - PHL
3 stops29h 41mMultiple Airlines
Deal found 2/17$642
This American Airlines deal was found by Cheapflights users on 2/18. 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.
dom. 3/167:40 pmPHL - LHR
Nonstop6h 55mAmerican Airlines
vie. 3/288:25 amLHR - PHL
1 stop12h 40mAmerican Airlines
Deal found 2/18$644
This Cheapflightsfares deal was found by Cheapflights users on 2/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 10/197:55 pmPHL - LHR
Nonstop7h 10mBritish Airways
mar. 10/2810:15 amLHR - PHL
Nonstop8h 05mBritish Airways
Deal found 2/17$649
This Cheapflightsfares deal was found by Cheapflights users on 2/18. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/2810:10 pmPHL - LHR
Nonstop7h 10mIberia
mié. 5/712:30 pmLHR - PHL
Nonstop7h 45mIberia
Deal found 2/18$651
This American Airlines deal was found by Cheapflights users on 2/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/511:50 amPHL - LGW
2 stops14h 40mAmerican Airlines
mié. 3/1211:20 amLGW - PHL
2 stops24h 16mAmerican Airlines
Deal found 2/17$656
This Flighttix deal was found by Cheapflights users on 2/18. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 3/94:50 pmPHL - LHR
1 stop10h 00mVirgin Atlantic
mar. 3/1811:30 amLHR - PHL
2 stops15h 46mVirgin Atlantic
Deal found 2/18$657
This oojo deal was found by Cheapflights users on 2/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/36:45 amPHL - LGW
1 stop19h 45mBritish Airways
mar. 3/1111:20 amLGW - PHL
1 stop26h 20mBritish Airways
Deal found 2/17$657
This Delta deal was found by Cheapflights users on 2/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/31:00 pmPHL - LHR
1 stop12h 50mDelta
mar. 3/116:30 amLHR - PHL
2 stops18h 45mDelta
Deal found 2/17$668

Find flights from Philadelphia to London within your budget

Customize 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 2,558,603 searches. Data last updated febrero 18, 2025.

Fly from

Philadelphia

Fly to

London

Route

Depart

Return

Price

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

dom. 3/16

10:11 am-5:55 am

1 stop15h 44m

London Heathrow

vie. 3/28

8:25 am-5:24 pm

1 stop12h 59m

$630

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

mié. 3/19

6:30 pm-8:05 am

1 stop9h 35m

London Heathrow

mié. 3/26

8:50 am-5:00 pm

1 stop12h 10m

$632

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

lun. 3/3

10:02 am-10:00 am

1 stop18h 58m

London Gatwick

sáb. 3/8

2:00 pm-7:46 am

1 stop22h 46m

$633

PhiladelphiaLondon

PHL - STN

PHLSTN

Philadelphia

lun. 3/17

3:30 pm-8:10 pm

2 stops24h 40m

London Stansted

lun. 3/24

8:55 pm-10:36 pm

3 stops29h 41m

$642

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

lun. 3/3

9:16 pm-9:20 am

Nonstop7h 04m

London Heathrow

mar. 3/11

7:50 am-5:25 pm

1 stop13h 35m

$643

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

lun. 4/28

10:10 pm-10:20 am

Nonstop7h 10m

London Heathrow

mié. 5/7

12:30 pm-3:15 pm

Nonstop7h 45m

$651

PhiladelphiaLondon

PHL - LHR

PHLLHR