Cheap flights from Philadelphia to London

Philadelphia
PHL
London
LON

Flight deals from Philadelphia to London

Below you can see the best deals on flights Philadelphia — London for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 19 October, from $229.

Top 10 cheap flights from Philadelphia to London

F9
Z0
$ 347

Philadelphia — London

10:37—10:00
23 Sep 2026
18 h 23 m
1 stop
F9
Z0
$ 347

Philadelphia — London

07:15—10:00
23 Sep 2026
21 h 45 m
1 stop
F9
Z0
$ 358

Philadelphia — London

15:30—10:00
21 Sep 2026
13 h 30 m
1 stop
F9
Z0
$ 358

Philadelphia — London

07:15—10:00
21 Sep 2026
21 h 45 m
1 stop
F9
Z0
$ 358

Philadelphia — London

05:15—10:00
21 Sep 2026
23 h 45 m
1 stop
F9
Z0
$ 378

Philadelphia — London

15:30—10:00
20 Sep 2026
13 h 30 m
1 stop
F9
Z0
$ 378

Philadelphia — London

05:15—10:00
20 Sep 2026
23 h 45 m
1 stop
F9
Z0
$ 379

Philadelphia — London

14:50—10:00
23 Sep 2026
14 h 10 m
1 stop
F9
Z0
$ 390

Philadelphia — London

10:10—10:00
21 Sep 2026
18 h 50 m
1 stop
F9
VS
VS
$ 394

Philadelphia — London

06:24—07:15
22 Sep 2026
19 h 51 m
2 stops

Prices were found in the last 72 hours and may change — check the exact price when you continue.

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

The price of a flight from Philadelphia to London changes depending on how far ahead you book. For the best chance of a lower fare, book around 8 days before departure, when the average ticket costs about $569. Fares also tend to climb as the departure date gets closer.

About the Philadelphia — London flight

Looking for cheap flights from Philadelphia to London? Compare fares from different airlines, check the flight schedule and travel time — and book your Philadelphia — London ticket online at the best price.

The route has direct flights — around 47 flights per week, flights are operated by American Airlines, British Airways, Aer Lingus, a nonstop flight takes about 7 h, the distance between the cities is around 5,715 km.

Planning your trip? You may find our London travel guide, how to get from the airport into town and London weather forecast useful. To catch a low fare, use the low-price calendar and the monthly price chart on this page.

Facts about this route

from $209Min. price
NovemberCheapest
AugustPeak season
YesDirect flights
5,715 kmDistance
7 hTravel time
3Airlines
47 / wkFlights

Flight schedule from Philadelphia to London

The table shows direct flights from Philadelphia to London on the selected date. The flight takes approximately 7 h. Regular flights are operated by American Airlines, British Airways and Aer Lingus. Departures from Philadelphia International Airport and Trenton-Mercer Airport airports, arrivals at Heathrow Airport, London Gatwick Airport and Stansted Airport.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

Today
Any time
Last update: 25 Aug 2026

Flight ticket prices by day: Philadelphia — London

Below is a calendar of the lowest flight ticket prices for Philadelphia — London by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from $209 in November, and the most expensive are around $543 in August. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

Average one-way fares from Philadelphia to London by month. Tickets are usually cheapest in February (around $435) and priciest in July (about $725) — use the table and chart below to pick the best time to fly.

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
Jan$459lowMay$532mediumSep$520medium
Feb$435lowJun$665highOct$496medium
Mar$471lowJul$725highNov$447low
Apr$508mediumAug$701highDec$677high

Some values are estimated based on seasonality.

When to fly

Weather in London: it is warmest in July (up to 22 °C on average) and coolest in January (around 7 °C). The driest month is June.

Tickets are usually cheapest in November and most expensive in August. Compare prices and weather by month in the charts below to pick the best time to fly.

Temperature · London

Dry and wet days · London

Wind speed and direction · London

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How to get the best deal on a Philadelphia — London ticket

  • Book ahead: fares for Philadelphia — London are usually lower 3–8 weeks before departure than at the last minute.
  • Play with your dates — Tuesday, Wednesday and Saturday departures are often cheaper than Friday and Sunday.
  • Philadelphia is served by more than one airport — compare fares and travel time to each before you book.
  • The cheapest month to fly to London is usually November — plan your trip around it if your dates are flexible.
  • Compare direct and connecting flights: nonstop is faster, while a connection is sometimes noticeably cheaper.
  • Watch the low-price calendar and the monthly price trend on this page — they make it easier to catch a good date.
  • Travelling light? Pick a cabin-baggage-only fare — tickets without checked luggage are noticeably cheaper.
  • Get to the airport in good time — about 2–3 hours before an international departure and roughly an hour before a domestic one.

Airlines

Flights on the Philadelphia — London route are operated by 3 airlines; American Airlines runs the most flights (around 60% of all flights). Compare carriers, flight shares and schedules below.

  • American AirlinesAA
    9x/week
    WebsiteFleet: 965211M pax/year
    • Direct flight PHL → LHR9x/week
      Duration
      7h 13m
      Days
      MTWTFSS
    59.6%Open →
  • British AirwaysBA
    5x/week
    WebsiteFleet: 29243M pax/year
    • Direct flight PHL → LHR5x/week
      Duration
      7h 5m
      Days
      MTWTFSS
    29.8%Open →
  • Aer LingusEI
    2x/week
    WebsiteFleet: 5710.7M pax/year
    • Direct flight PHL → LHR2x/week
    10.6%Open →

Cities and airports on the Philadelphia — London route

Flights Philadelphia — London depart from Philadelphia International Airport and Trenton-Mercer Airport and arrive at Heathrow Airport, London Gatwick Airport, Stansted Airport and London Luton Airport. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

Philadelphia

PHL
United States
About the cityHow to get thereWeatherAll about the country United States
Arrival

London

LON
United Kingdom
About the cityHow to get thereWeatherAll about the country United Kingdom
Departure airports
Arrival airports

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Frequently asked questions about the Philadelphia — London flight

How long is the flight from Philadelphia to London?

A nonstop Philadelphia — London flight takes about 7 h — the distance between the cities is around 5,715 km.

How far is it from Philadelphia to London?

The distance from Philadelphia to London is about 5,715 km, which a nonstop flight covers in around 7 h.

Are there direct flights from Philadelphia to London?

Yes, there are nonstop flights Philadelphia — London — around 47 flights per week.

Which airlines fly from Philadelphia to London?

Airlines operating Philadelphia — London include American Airlines, British Airways, Aer Lingus. See the full list with schedules in the "Airlines" section on this page.

Which airports do Philadelphia — London flights use?

Flights from Philadelphia depart from Philadelphia International Airport, Trenton-Mercer Airport, and arrive at Heathrow Airport, London Gatwick Airport, Stansted Airport. If a city has more than one airport, check which one your ticket uses before you travel.

How much is a ticket from Philadelphia to London?

The price of a Philadelphia — London ticket depends on your travel date, season and demand: it is usually cheapest to fly in November, and most expensive in August. Tickets typically cost between $209 and $543. Check the current lowest fare and low-price calendar on this page.

When is the best time to book flights Philadelphia — London?

Flights Philadelphia — London are usually cheaper when booked in advance — a few weeks before departure and away from peak dates; the most budget-friendly month to fly is November. Compare prices by month in the price trend chart on this page.

How can I find the cheapest flights from Philadelphia to London?

To catch a low fare Philadelphia — London, book a few weeks in advance, keep your dates flexible, and compare airlines and connecting options. The low-price calendar and monthly price chart on this page show the cheapest days and months at a glance: the most budget-friendly month to fly is usually November.

How early should I arrive at the airport?

For international flights, plan to be at the airport about 2–3 hours before departure, and around an hour before a domestic flight. Allow extra time during busy travel seasons and at large hubs, where check-in and security lines can be longer.

Where else you can fly from Philadelphia

See all
AtlantaChicagoBostonOrlandoFort LauderdaleMiamiTorontoDetroitCharlotteWashington, D.C.RaleighDallasLos AngelesPhoenixDenverMinneapolisSan JuanPittsburghSeattleNashvilleMontrealColumbusClevelandTampaIndianapolisSan FranciscoNorfolkCincinnatiHoustonLas VegasHarrisburgJacksonvilleRichmondHartfordSouth PortlandAlbanyKansas CityCancunRochesterPunta Cana

Where else you can fly from London

See all
New York CityAmsterdamMadridBarcelonaDublinParisFrankfurt am MainMilanPalmaMalagaEdinburghIstanbulGenevaGlasgowBelfastLisbonFaroZurichNiceRomeLos AngelesCopenhagenAthensAlicanteBerlinSan FranciscoDubaiBostonIbizaTorontoAntalyaMunichChicagoDohaBristolStockholmOsloViennaDusseldorfCardiff

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