$509 Cheap United flights Chicago (ORD) to London (LHR)

$509 Cheap United flights Chicago (ORD) to London (LHR)

Prices were available within the past 7 days and start at $509 for one-way flights and $857 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sun, May 3 - Tue, May 19

ORD

Chicago

LHR

London

$857 Roundtrip, found 6 days ago

$857

Roundtrip

found 6 days ago

Select United flight, departing Sun, May 3 from Chicago to London, returning Tue, May 19, priced at $857 found 6 days ago

Sun, May 3 - Wed, May 13

ORD

Chicago

LHR

London

$857 Roundtrip, found 6 days ago

$857

Roundtrip

found 6 days ago

Select United flight, departing Sun, May 3 from Chicago to London, returning Wed, May 13, priced at $857 found 6 days ago

Tue, Apr 7 - Tue, Apr 28

ORD

Chicago

LHR

London

$859 Roundtrip, found 6 days ago

$859

Roundtrip

found 6 days ago

Select United flight, departing Tue, Apr 7 from Chicago to London, returning Tue, Apr 28, priced at $859 found 6 days ago

Mon, Apr 6 - Fri, May 1

ORD

Chicago

LHR

London

$863 Roundtrip, found 4 days ago

$863

Roundtrip

found 4 days ago

Select United flight, departing Mon, Apr 6 from Chicago to London, returning Fri, May 1, priced at $863 found 4 days ago

Mon, Apr 6 - Fri, May 1

ORD

Chicago

LHR

London

$867 Roundtrip, found 4 days ago

$867

Roundtrip

found 4 days ago

Select United flight, departing Mon, Apr 6 from Chicago to London, returning Fri, May 1, priced at $867 found 4 days ago

Mon, Apr 6 - Fri, May 1

ORD

Chicago

LHR

London

$890 Roundtrip, found 4 days ago

$890

Roundtrip

found 4 days ago

Select United flight, departing Mon, Apr 6 from Chicago to London, returning Fri, May 1, priced at $890 found 4 days ago

Mon, Apr 6 - Fri, May 1

ORD

Chicago

LHR

London

$894 Roundtrip, found 4 days ago

$894

Roundtrip

found 4 days ago

Select United flight, departing Mon, Apr 6 from Chicago to London, returning Fri, May 1, priced at $894 found 4 days ago

Mon, Apr 6 - Fri, May 1

ORD

Chicago

LHR

London

$896 Roundtrip, found 4 days ago

$896

Roundtrip

found 4 days ago

Select United flight, departing Mon, Apr 6 from Chicago to London, returning Fri, May 1, priced at $896 found 4 days ago