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Find cheap United Airlines flights to Philadelphia

CMH — PHL
26 Aug — 2 Sep1
1 adult
1 adult, Economy, 0 bags

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Cheapest United Airlines flights from United Kingdom to Philadelphia
Explore the most affordable United Airlines flight options available from United Kingdom to Philadelphia. Find the lowest fares with prices last updated on 27 July 2026.

Mon 24/809:30
LHR
-
PHL
2 stops14h 23m
United Airlines
Thu 3/910:30
PHL
-
LHR
2 stops17h 05m
United Airlines
Deal found 24/7£629
Thu 27/807:30
LHR
-
PHL
1 stop13h 35m
United Airlines
Thu 3/910:30
PHL
-
LHR
2 stops17h 05m
United Airlines
Deal found 24/7£630
Fri 28/814:10
LHR
-
PHL
2 stops24h 33m
United Airlines
Thu 3/915:05
PHL
-
LHR
1 stop10h 50m
United Airlines
Deal found 23/7£654

Flights to Philadelphia with United Airlines at a glance

Find detailed information about United Airlines flights from United Kingdom to Philadelphia. Explore the options provided by United Airlines to plan your journey from United Kingdom to Philadelphia. Data last updated 27 July 2026.

Return from

£623

One-way from

£421
United Airlines
  • United Airlines
  • 6/11-11/11
  • 3 total stops
  • 29h 26m total
  • United Kingdom to Philadelphia
Search Deals
United Airlines
  • United Airlines
  • 13/9
  • 1 total stop
  • 29h 35m total
  • United Kingdom to Philadelphia
Search Deals

Cheapflights Insights

Find cheap United Airlines flights to Philadelphia

How long is the flight to Philadelphia with United Airlines?

On average, United Airlines flights from the United Kingdom to Philadelphia take 10 hours 2 minutes. Flights to Philadelphia from other popular cities in the United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

FAQs about flights to Philadelphia with United Airlines

  • Which airport do United Airlines flights arrive at when travelling to Philadelphia?

    United Airlines flights on this route tend to land at Philadelphia Airport.

  • Is United Airlines the cheapest airline for a flight to Philadelphia?

    Flight prices will depend on factors like date, time, and cabin class, so it is worth comparing flights before booking. Based on Cheapflights data, the cheapest average return price for flights to Philadelphia tends to be with Icelandair.

  • Are there alternative airlines other than United Airlines that fly to Philadelphia?

    British Airways, Aer Lingus and Finnair all fly to Philadelphia and offer an alternative to United Airlines.

  • How much is a United Airlines flight to Philadelphia?

    The average price for a return flight is £600.

See more FAQs

Reviews of United Airlines

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United Airlines
7.4
Good
10,000 reviews
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Overview

Boarding

7.7

Entertainment

7.1

Crew

8.1

Food

6.6

Comfort

7.3

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