$384 Cheap United flights Washington (WAS) to London (LON)

$384 Cheap United flights Washington (WAS) to London (LON)

Prices were available within the past 7 days and start at $384 for one-way flights and $607 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Wed, Nov 19 - Thu, Nov 27

IAD

Washington

LHR

London

$607 Roundtrip, found 6 days ago

$607

Roundtrip

found 6 days ago

Select United flight, departing Wed, Nov 19 from Washington to London, returning Thu, Nov 27, priced at $607 found 6 days ago

Wed, Nov 19 - Tue, Dec 2

IAD

Washington

LHR

London

$607 Roundtrip, found 6 days ago

$607

Roundtrip

found 6 days ago

Select United flight, departing Wed, Nov 19 from Washington to London, returning Tue, Dec 2, priced at $607 found 6 days ago

Sun, Jan 25 - Mon, Feb 2

IAD

Washington

LHR

London

$614 Roundtrip, found 18 hours ago

$614

Roundtrip

found 18 hours ago

Select United flight, departing Sun, Jan 25 from Washington to London, returning Mon, Feb 2, priced at $614 found 18 hours ago

Wed, Jan 7 - Mon, Jan 19

IAD

Washington

LHR

London

$615 Roundtrip, found 2 days ago

$615

Roundtrip

found 2 days ago

Select United flight, departing Wed, Jan 7 from Washington to London, returning Mon, Jan 19, priced at $615 found 2 days ago

Mon, Feb 23 - Fri, Mar 6

BWI

Baltimore

LHR

London

$628 Roundtrip, found 21 hours ago

$628

Roundtrip

found 21 hours ago

Select United flight, departing Mon, Feb 23 from Baltimore to London, returning Fri, Mar 6, priced at $628 found 21 hours ago

Mon, Feb 23 - Fri, Mar 6

BWI

Baltimore

LHR

London

$628 Roundtrip, found 21 hours ago

$628

Roundtrip

found 21 hours ago

Select United flight, departing Mon, Feb 23 from Baltimore to London, returning Fri, Mar 6, priced at $628 found 21 hours ago