Book cheap flights fast with idealo

Save time & money: find cheap flights fast

Easy to use: filter & sort to find the best flight

Free to use: compare offers & book flights

Our cheapest offers for flights from Philadelphia to United Kingdom

Here you can compare cheap flights from Philadelphia (PHL) to United Kingdom for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to United Kingdom. Prices and availability may change at any time.

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

	Outbound	Return	Airlines	Baggage	Price
Philadelphia London Heathrow	Outbound 04/26/25 1 Stopover (ORD) UA2665, UA0920 32h 49min	Return 05/23/25 1 Stopover (IAD) UA0919, UA6125 11h 25min	United Airlines	?	$750
Best option Philadelphia London Heathrow	Outbound 04/26/25 direct AY5667 07h 10min	Return 05/23/25 direct AY4050 07h 45min	Finnair		$802
Philadelphia London Heathrow	Outbound 04/26/25 1 Stopover (ATL) VS4161, VS4044 31h 02min	Return 05/23/25 1 Stopover (ATL) VS4009, VS2660 14h 02min	Virgin Atlantic Airways	?	$766

Flights from Philadelphia (PHL) to London (LON)

	Outbound	Return	Airlines	Baggage	Price
Philadelphia London	Outbound 04/26/25 1 Stopover (ORD) UA2665, UA0920 32h 49min	Return 05/23/25 1 Stopover (IAD) UA0919, UA6125 11h 25min	United Airlines	?	$750
Best option Philadelphia London	Outbound 04/26/25 direct AY5667 07h 10min	Return 05/23/25 direct AY4050 07h 45min	Finnair		$802
Philadelphia London	Outbound 04/26/25 1 Stopover (ATL) VS4161, VS4044 31h 02min	Return 05/23/25 1 Stopover (ATL) VS4009, VS2660 14h 02min	Virgin Atlantic Airways	?	$766

Flights from Philadelphia (PHL) to Manchester (MAN)

	Outbound	Return	Airlines	Baggage	Price
Philadelphia Manchester	Outbound 04/26/25 1 Stopover (ATL) VS2665, VS0110 32h 39min	Return 05/23/25 1 Stopover (ATL) VS0109, VS2660 33h 52min	Virgin Atlantic Airways	?	$708
Best option Philadelphia Manchester	Outbound 04/26/25 1 Stopover (LHR) BA0066, BA1370 10h 15min	Return 05/23/25 1 Stopover (LHR) BA1387, BA0067 12h 25min	British Airways	?	$772
Philadelphia Manchester	Outbound 04/26/25 1 Stopover (LHR) BA0066, BA1370 10h 15min	Return 05/23/25 1 Stopover (LHR) BA1387, BA1538 11h 50min	British Airways		$776