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Cheap Flights from Philadelphia International (PHL) to London Heathrow (LHR)

Compare Philadelphia International to London Heathrow flight deals

Find the cheapest month or even day of the year to fly to London Heathrow

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Flight deals from Philadelphia International to London Heathrow

Looking for a cheap last-minute deal or the best round-trip flight from Philadelphia International to London Heathrow? Find the lowest prices on one-way and round-trip tickets right here.
London.$637 per passenger.Departing Tue, May 28, returning Tue, Jun 4.Round-trip flight with Frontier Airlines and Aer Lingus.Outbound indirect flight with Frontier Airlines, departing from Philadelphia International on Tue, May 28, arriving in London Heathrow.Inbound indirect flight with Aer Lingus, departing from London Heathrow on Tue, Jun 4, arriving in Philadelphia International.Price includes taxes and charges.From $637, select.
London.$647 per passenger.Departing Wed, Oct 2, returning Wed, Oct 9.Round-trip flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departing from Philadelphia International on Wed, Oct 2, arriving in London Heathrow.Inbound indirect flight with Aer Lingus, departing from London Heathrow on Wed, Oct 9, arriving in Philadelphia International.Price includes taxes and charges.From $647, select.
London.$653 per passenger.Departing Tue, Aug 27, returning Sun, Sep 1.Round-trip flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departing from Philadelphia International on Tue, Aug 27, arriving in London Heathrow.Inbound indirect flight with Aer Lingus, departing from London Heathrow on Sun, Sep 1, arriving in Philadelphia International.Price includes taxes and charges.From $653, select.
London.$654 per passenger.Departing Tue, May 14, returning Tue, May 21.Round-trip flight with jetBlue.Outbound indirect flight with jetBlue, departing from Philadelphia International on Tue, May 14, arriving in London Heathrow.Inbound indirect flight with jetBlue, departing from London Heathrow on Tue, May 21, arriving in Philadelphia International.Price includes taxes and charges.From $654, select.
London.$661 per passenger.Departing Tue, Sep 10, returning Sat, Sep 14.Round-trip flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departing from Philadelphia International on Tue, Sep 10, arriving in London Heathrow.Inbound indirect flight with Aer Lingus, departing from London Heathrow on Sat, Sep 14, arriving in Philadelphia International.Price includes taxes and charges.From $661, select.
London.$663 per passenger.Departing Tue, Sep 24, returning Tue, Oct 1.Round-trip flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departing from Philadelphia International on Tue, Sep 24, arriving in London Heathrow.Inbound indirect flight with Aer Lingus, departing from London Heathrow on Tue, Oct 1, arriving in Philadelphia International.Price includes taxes and charges.From $663, select.
London.$664 per passenger.Departing Mon, Aug 12, returning Mon, Aug 19.Round-trip flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departing from Philadelphia International on Mon, Aug 12, arriving in London Heathrow.Inbound indirect flight with Aer Lingus, departing from London Heathrow on Mon, Aug 19, arriving in Philadelphia International.Price includes taxes and charges.From $664, select.
London.$664 per passenger.Departing Fri, Jul 19, returning Sat, Aug 31.Round-trip flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departing from Philadelphia International on Fri, Jul 19, arriving in London Heathrow.Inbound indirect flight with Aer Lingus, departing from London Heathrow on Sat, Aug 31, arriving in Philadelphia International.Price includes taxes and charges.From $664, select.

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Find the cheapest month to fly from Philadelphia International to London Heathrow

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Philadelphia International to London Heathrow flights are currently cheapest in October.
May
from $655
Jun
from $756
Jul
from $809
Aug
from $664
Sep
from $661
Oct
from $647
Nov
from $697
Dec
from $693
Jan
from $696
Feb
from $696
Mar
from $694
Apr
from $758

Direct flights from Philadelphia International to London Heathrow

Philadelphia International to London Heathrow: Alternative routes

Compare routes from Philadelphia International to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Heathrow.

Philadelphia to London: Flight information

The things to know before you go.
Cheapest flight found$637
Cheapest month to flyMay
Average flight time7 hrs, 4 mins
Most popular airlineIberia
Average flights per week112

Finding cheap flights from Philadelphia International to London Heathrow: Frequently asked questions

The best price we found for a round-trip flight from Philadelphia International to London Heathrow is $637. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
7 hours and 4 minutes is the average flight time from Philadelphia International to London Heathrow.
Iberia, American Airlines and Finnair fly direct from Philadelphia International to London Heathrow.
There are 112 flights per week flying from Philadelphia International to London Heathrow, as of May 2024.
The cheapest month to fly from Philadelphia International to London Heathrow is usually May.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Philadelphia International Airport to London Heathrow Airport on Tuesday, May 28, 2024.
Yes – the average flight time is 7 hours and 4 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Heathrow but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to London Heathrow is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines and Iberia offer the cheapest flight tickets to London Heathrow.

Fly From Philadelphia to Heathrow Airport

Easy flights from Philadelphia to Heathrow Airport (LHR) take you to Hounslow, just outside of London. Take a ride on the 135-meter London Eye to get a great view of the city. Go to Buckingham Palace to watch the changing of the guard and see where the queen lives. Enjoy a cruise along the River Thames. The flight time for a direct flight is only about seven hours. Numerous airlines fly this route, including Delta, American and Virgin Atlantic.

Facilities at Heathrow Airport

Heathrow Airport (LHR) is one of the busiest in the world. It lies only about 15 miles west of the center of London and serves over 75 million airline passengers. It has five terminals, but downloadable terminal maps on the Heathrow website make it easy to navigate the airport. Numerous restaurants and shopping opportunities are available throughout. The airport offers a rewards program to save on parking, shopping, the Heathrow Express and more. Among many other airlines, you can also select from carriers such as British Airways, United and Air France. For travelers coming from Philadelphia to Heathrow Airport (LHR), multiple transportation options to the city are available. Choose from buses, hotel shuttles, train, subway coach service, taxis or ridesharing. The Heathrow Express offers free service between terminals.

Things to Do Near Heathrow Airport

Flights from Philadelphia to Heathrow Airport (LHR) let you take advantage of nearby attractions. Enjoy your trip by visiting the Tower of London, located at St. Katharine’s and Wapping. It is a fortress built by William the Conqueror and houses the crown jewels. Visit Westminster Abbey, where coronations are held for kings and queens. Stroll through the British Museum on Great Russell Street, which holds many treasures and artifacts from antiquity. For great neighborhoods, explore the quaint areas of Piccadilly and Soho. History buffs may enjoy the Churchill War Rooms on King Charles Street, located in a World War II bunker. Look for nearby shopping at Westfield shopping center in Shepherds Bush. It offers numerous retail stores, entertainment and dining choices.

Hints and Tips for Heathrow Airport

Flying from Philadelphia to Heathrow Airport (LHR) also let you indulge in festivals and events. Runners can join in the Virgin Money London Marathon to see London up close. It is routed through Greenwich, goes over Tower Bridge and ends at Buckingham Palace. In the fall, you can go to the Thames Festival, which features fireworks, art, live music and more. Flower lovers might visit the Chelsea Flower Show, which started in 1913 and features imaginative displays and awards. Popular entertainment includes attending Shakespeare’s Globe Theatre for live performances. Pubs are popular places to gather, and some include music or comedy acts. Sports fans can watch a tennis match at Wimbledon. For football fans, take in a football match featuring one of London’s 13 teams. Find restaurants near the airport along Bath Road or Great South-West Road. A three-course meal for two costs around $68. The average high temperature in the summer is 68 degrees Fahrenheit, and in the winter, 41 degrees Fahrenheit.


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Plan the rest of your trip from Philadelphia to London

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.