
$555 Cheap United flights Philadelphia (PHL) to London (LHR)
Prices were available within the past 7 days and start at $555 for one-way flights and $620 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, May 13 - Thu, May 21
PHL
Philadelphia
LHR
London
$620 Roundtrip, found 1 day ago
$620
Roundtrip
found 1 day ago

Wed, Apr 22 - Tue, Apr 28
PHL
Philadelphia
LHR
London
$622 Roundtrip, found 2 days ago
$622
Roundtrip
found 2 days ago
Find the cheapest month to fly from Philadelphia (PHL) to London (LHR)
October is typically the cheapest month to fly
From $477 - $830 per traveler.
Travel information
Origin airport | Philadelphia Intl. |
|---|---|
Destination airport | Heathrow |
Airlines serving | Aer Lingus, Air Canada, American Airlines, British Airways, Delta, Finnair, Iberia, JetBlue Airways, Lufthansa, United, Virgin Atlantic |
Popular airline | British Airways |
Distance | 5656 km |
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Most Popular United Routes from Philadelphia
Most Popular United Routes from London
- Detroit to Tampa (DTW - TPA)
- Raleigh to Miami (RDU - MIA)
- South Bend to Sacramento (SBN - SMF)
- Boston to Fort Lauderdale (BOS - FLL)
- Frankfurt to Newark Liberty Intl. Airport (FRA - EWR)
- Frankfurt to Newark Liberty Intl. Airport (FRA - EWR)
- Newark Liberty Intl. Airport to Tampa (EWR - TPA)
- Louisville to Lihue (SDF - LIH)
- Rochester to Fort Lauderdale (ROC - FLL)
- Portland to Baltimore (PDX - BWI)
Popular Domestic Routes in Heathrow
- Houston to Frankfurt (IAH - FRA)
- Charlottesville to San Juan (CHO - SJU)
- Newark Liberty Intl. Airport to Tampa (EWR - TPA)
- Chicago to New Orleans (ORD - MSY)
- Houston to Charleston (IAH - CHS)
- Boston to Fort Lauderdale (BOS - FLL)
- Chicago to Albuquerque (ORD - ABQ)
- Louisville to Lihue (SDF - LIH)
- Orlando to Newark Liberty Intl. Airport (MCO - EWR)
- Seattle to Phoenix (SEA - PHX)