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£69+ Cheap flights from Philadelphia

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
PHL — LHR
20 Apr — 27 Apr1
1 adult

What to know about flights from Philadelphia

Discover essential information about flights departing from Philadelphia, including flight schedules, destinations, airlines operating at the Philadelphia airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 15 April 2025.

Cheapest round-trip flight

£491

Cheapest airline

Frontier

Good round-trip deal

£28 or less

Good one-way deal

£30 or less
The cheapest round-trip flight from Philadelphia is currently to London Heathrow.
On average, Frontier currently has the cheapest one-way flight from Philadelphia (avg. price of £28).
Price to beat on a round-trip flight from Philadelphia.
Price to beat on a one-way flight from Philadelphia.

Find flights from Philadelphia

Cheapest flights from Philadelphia
Explore the most affordable flight options available from Philadelphia. Find the lowest fares based on data from user searches, with prices last updated on 15 April 2025.

Tue 19/818:30PHL - INV
2 stops15h 25mBritish Airways
Tue 26/815:45INV - PHL
2 stops29h 55mBritish Airways
Deal found 14/4£425
Tue 19/822:25PHL - INV
1 stop11h 30mAmerican Airlines
Tue 26/815:45INV - PHL
1 stop28h 25mAmerican Airlines
Deal found 14/4£426
Sun 17/818:35PHL - INV
1 stop10h 35mMultiple Airlines
Sun 14/920:55INV - PHL
1 stop24h 30mMultiple Airlines
Deal found 14/4£465
Wed 8/1018:30PHL - MAN
1 stop10h 20mBritish Airways
Tue 21/1007:00MAN - PHL
1 stop14h 25mBritish Airways
Deal found 13/4£486
Mon 28/418:40PHL - GLA
2 stops16h 45mBritish Airways
Wed 7/505:50GLA - PHL
2 stops15h 35mBritish Airways
Deal found 15/4£486
Mon 28/422:10PHL - GLA
1 stop13h 35mAmerican Airlines
Wed 7/505:50GLA - PHL
1 stop12h 00mAmerican Airlines
Deal found 14/4£488
Wed 10/915:20PHL - LHR
1 stop10h 10mMultiple Airlines
Sat 20/913:30LHR - PHL
2 stops13h 57mMultiple Airlines
Deal found 14/4£492
Mon 6/1018:55PHL - LCY
1 stop12h 50mBritish Airways
Mon 20/1018:05LCY - PHL
1 stop22h 40mBritish Airways
Deal found 14/4£492
Mon 12/519:55PHL - LHR
Nonstop7h 10mIberia
Sun 18/508:55LHR - PHL
1 stop15h 34mIberia
Deal found 14/4£492
Wed 7/516:00PHL - LGW
1 stop13h 40mBritish Airways
Tue 3/614:30LGW - PHL
1 stop23h 05mBritish Airways
Deal found 14/4£492
Tue 13/519:12PHL - LGW
1 stop33h 48mMultiple Airlines
Sun 18/519:40LGW - PHL
2 stops39h 50mMultiple Airlines
Deal found 15/4£494
Thu 2/1015:00PHL - LHR
1 stop10h 30mJetBlue
Wed 8/1008:25LHR - PHL
1 stop15h 17mJetBlue
Deal found 13/4£495

Find flights from Philadelphia within your budget

Find flights departing from Philadelphia that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 15 April 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

PhiladelphiaInverness

PHL - INV

PHLINV

Philadelphia

Tue 19/8

18:30-14:55

2 stops15h 25m

Inverness

Tue 26/8

15:45-16:40

2 stops29h 55m

£425

PhiladelphiaInverness

PHL - INV

PHLINV

Philadelphia

Tue 19/8

22:25-14:55

1 stop11h 30m

Inverness

Tue 26/8

15:45-15:10

1 stop28h 25m

£426

PhiladelphiaInverness

PHL - INV

PHLINV

Philadelphia

Sun 17/8

18:35-10:10

1 stop10h 35m

Inverness

Sun 14/9

20:55-16:25

1 stop24h 30m

£465

PhiladelphiaManchester

PHL - MAN

PHLMAN

Philadelphia

Wed 8/10

18:30-09:50

1 stop10h 20m

Manchester

Tue 21/10

07:00-16:25

1 stop14h 25m

£486

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Mon 28/4

18:40-16:25

2 stops16h 45m

Glasgow Intl

Wed 7/5

05:50-16:25

2 stops15h 35m

£486

PhiladelphiaGlasgow

PHL - GLA

PHLGLA

Philadelphia

Mon 28/4

22:10-16:45

1 stop13h 35m

Glasgow Intl

Wed 7/5

05:50-12:50

1 stop12h 00m

£488

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Wed 10/9

15:20-06:30

1 stop10h 10m

London Heathrow

Sat 20/9

13:30-22:27

2 stops13h 57m

£492

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Mon 12/5

22:10-10:20

Nonstop7h 10m

London Heathrow

Sun 18/5

08:55-19:29

1 stop15h 34m

£492

PhiladelphiaLondon

PHL - LGW

PHLLGW

Philadelphia

Tue 13/5

19:12-10:00

1 stop33h 48m

London Gatwick

Sun 18/5

19:40-06:30

2 stops39h 50m

£494

PhiladelphiaLondon

PHL - LHR

PHLLHR

Philadelphia

Thu 2/10

15:00-06:30

1 stop10h 30m

London Heathrow

Wed 8/10

08:25-18:42

1 stop15h 17m

£495

Flights are sorted by cheapest return flights first.

Deals found on 13/4

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Best time to book a flight from Philadelphia

Have a flexible travel schedule? Discover the best time to fly from Philadelphia with our price prediction graph.
Estimated return 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.

Travel insights for flights from Philadelphia

Get recent, data-driven insights about flights from Philadelphia including ideal travel times, pricing trends, and more.

When is the best time to book a flight from Philadelphia?

Use this chart to determine the optimal time to book a return flight from Philadelphia to Heathrow. Price data was last updated on 11 April 2025.

Booking 56 days in advance of your planned departure date is, on average, the best time to get cheap flights from Philadelphia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Philadelphia?

Currently, November is the cheapest month in which you can book a flight from Philadelphia (average of £299). Flying from Philadelphia in June will prove the most costly (average of £496). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Airline reviews for flights from Philadelphia

Get insights into the airlines that provide service from Philadelphia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from Philadelphia. In the last 7 days, Cheapflights users made a total of 858,174 searches.

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very Good

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Comfort

7.9

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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Direct flights from Pennsylvania

Book a direct flight from one of these other cities located in Pennsylvania.

Related info for your journey

Access useful and relevant information related to your journey from Philadelphia. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 15 April 2025.
  • What are the most popular destinations to fly to from Philadelphia?

    This month, the top selected destinations from Philadelphia are Atlanta, Boston, Nashville. Throughout the year, Atlanta, Boston, Chicago are some of the top choices made by users flying from Philadelphia.

  • What is the cheapest flight from Philadelphia to anywhere?

    Users have flown out of Philadelphia for as low as £27 to Raleigh (prices may vary depending on the airline and departure time). On average, users have booked flights for £310 to fly from Philadelphia.

  • What are the cheapest airlines flying from Philadelphia to anywhere?

    Over the past few days, we've found that Frontier, Spirit Airlines, and American Airlines have the cheapest prices from Philadelphia. Frontier flights from Philadelphia to Atlanta Hartsfield-Jackson (£27), Spirit Airlines flights from Philadelphia to Fort Lauderdale (£62), and American Airlines flights from Philadelphia to Chicago (£100).

  • What is the cheapest premium economy flight from Philadelphia?

    Here are some of the cheapest offers we have found for the cheapest premium economy flights from Philadelphia.
    Philadelphia to Detroit Metropolitan Wayne County Airport from £443
    Philadelphia to Atlanta from £623
    Philadelphia to Chicago O'Hare Intl Airport from £855
    Philadelphia to Miami from £1,303

  • What is the cheapest first class flight from Philadelphia?

    If you’re looking for a cheap first-class flight from Philadelphia, consider Dallas. Prices start at £817 so you can fly first-class even on a budget.

  • What is the cheapest month to fly from Philadelphia?

    At the present moment the cheapest month to fly from Philadelphia is currently November; with June being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from Philadelphia?

    Check out the cheapest flights from Philadelphia to embark to:
    Travel from Philadelphia to London from £381 round trip
    Travel from Philadelphia to Edinburgh from £422 round trip

  • How does Cheapflights help users find flights from Philadelphia?

    Cheapflights helps you search for flights from Philadelphia via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

  • Why should you use Cheapflights to find cheap flight tickets from Philadelphia?

    By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights from Philadelphia.

  • Can Cheapflights find flights from Philadelphia with no change fees?

    Need flexible booking options for your flight from Philadelphia ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

  • Can Cheapflights notify me if prices for flights from Philadelphia become cheaper?

    Not ready to book yet? You can track prices for flights from Philadelphia on Cheapflights with our Price Alerts feature and get notified when better prices are available.

See more FAQs

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How does Cheapflights help users find flights from Philadelphia?

Cheapflights helps you search for flights from Philadelphia via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Philadelphia?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights from Philadelphia.

Can Cheapflights find flights from Philadelphia with no change fees?

Need flexible booking options for your flight from Philadelphia ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Philadelphia become cheaper?

Not ready to book yet? You can track prices for flights from Philadelphia on Cheapflights with our Price Alerts feature and get notified when better prices are available.

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