Cheap flights from Philadelphia to London Heathrow from $409

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Info about flights from Philadelphia to London Heathrow

Some useful info about flights from Philadelphia to London Heathrow to help you plan your next trip

Best price last 15 days $409
Average flight duration 7h 2m
Cheapest month January
Average number of flights per week 7
First flight time 06:00
Last flight time 22:25
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How much is a ticket from Philadelphia to London Heathrow?

Depending on when you travel and how far in advance you book, fares between Philadelphia and London can differ a lot.

The lowest fare seen in the past 15 days was $409.

If you’re flexible with timing, consider overnight flights — they often cost less and are less crowded. Exploring multiple date and time combinations can help you find the cheapest solution.

Flying between Philadelphia and London? Consider these airports

Depending on your destination and where you’re starting from, it might make sense to look beyond the main hubs.

  • Airports in Philadelphia: You can fly from either Philadelphia - International or Trenton Mercer.
  • Airports in London: London has 6 airports - City Airport, Gatwick, Heathrow, Luton, Southend, Stansted.

Check if your destination airport has a rail link — it can make getting around easier. Jetcost lets you view options from all Philadelphia airports in a single search.

Flights from Philadelphia - International to London - Heathrow

Plan smarter: flights from Philadelphia to London Heathrow

Find the flight that fits your plans with Jetcost. You can filter results by stops, agencies, budget, time of day, and airline — all in one search.

Other popular destinations

Travelers flying to United Kingdom also checked out: Edinburgh, Glasgow, London, Manchester, Newquay.

Comparing offers from multiple agencies helps you find the best price for the same route. You can also spot exclusive deals from individual airlines right in the results list.
Frequently Asked Questions

Frequently asked questions about flights from Philadelphia to London Heathrow.

How much does an airline ticket from Philadelphia to London Heathrow cost?

The lowest price recorded in the last 15 days for a flight from Philadelphia to London Heathrow is $409.

How far is Philadelphia from London?

Philadelphia is about 3536 mi from London.

What are the airports in London?

London has 6 airports: City Airport, Gatwick, Heathrow, Luton, Southend, Stansted.

What are the airports in Philadelphia?

Philadelphia has another airport: Trenton Mercer.

What are the most popular cities in United Kingdom?

The most popular cities in United Kingdom according to our users' searches are: Edinburgh, Glasgow, London, Manchester, Newquay.

When should I book a flight from Philadelphia to London?

The best time to book a flight from Philadelphia to London is 1 month in advance, while the worst time is 1 week in advance.

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

The cheapest month to fly from Philadelphia to London is January.

What is the most expensive month to fly from Philadelphia to London?

The most expensive month to fly from Philadelphia to London is December.

What is the best day of the week to fly from Philadelphia to London?

For flights from Philadelphia to London Friday is on average the cheapest day to fly, while Friday is the most expensive day to fly.