Flights from Chicago to London

Cheapest flights from Chicago

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Sep 23 - Wed, Oct 2

ORD

O'Hare Intl.

LHR

Heathrow

$580 Roundtrip, found 2 days ago

$580

Roundtrip

found 2 days ago

Select Scandinavian Airlines flight, departing Mon, Sep 23 from O'Hare Intl. to Heathrow, returning Wed, Oct 2, priced at $580 found 2 days ago

Mon, Sep 23 - Wed, Oct 2

ORD

O'Hare Intl.

LHR

Heathrow

$586 Roundtrip, found 2 days ago

$586

Roundtrip

found 2 days ago

Select American Airlines flight, departing Mon, Sep 23 from O'Hare Intl. to Heathrow, returning Wed, Oct 2, priced at $586 found 2 days ago

Wed, May 1 - Wed, May 8

ORD

O'Hare Intl.

LHR

Heathrow

$601 Roundtrip, found 1 day ago

$601

Roundtrip

found 1 day ago

Select Virgin Atlantic flight, departing Wed, May 1 from O'Hare Intl. to Heathrow, returning Wed, May 8, priced at $601 found 1 day ago

Mon, Sep 23 - Wed, Oct 2

ORD

O'Hare Intl.

LHR

Heathrow

$602 Roundtrip, found 2 days ago

$602

Roundtrip

found 2 days ago

Select TAP Portugal flight, departing Mon, Sep 23 from O'Hare Intl. to Heathrow, returning Wed, Oct 2, priced at $602 found 2 days ago

Mon, Sep 23 - Wed, Oct 2

ORD

O'Hare Intl.

LHR

Heathrow

$610 Roundtrip, found 2 days ago

$610

Roundtrip

found 2 days ago

Select Icelandair flight, departing Mon, Sep 23 from O'Hare Intl. to Heathrow, returning Wed, Oct 2, priced at $610 found 2 days ago

Mon, Sep 23 - Wed, Oct 2

ORD

O'Hare Intl.

LHR

Heathrow

$614 Roundtrip, found 2 days ago

$614

Roundtrip

found 2 days ago

Select British Airways flight, departing Mon, Sep 23 from O'Hare Intl. to Heathrow, returning Wed, Oct 2, priced at $614 found 2 days ago

Mon, Sep 23 - Wed, Oct 2

ORD

O'Hare Intl.

LHR

Heathrow

$633 Roundtrip, found 2 days ago

$633

Roundtrip

found 2 days ago

Select United flight, departing Mon, Sep 23 from O'Hare Intl. to Heathrow, returning Wed, Oct 2, priced at $633 found 2 days ago

Mon, Sep 23 - Wed, Oct 2

ORD

O'Hare Intl.

LHR

Heathrow

$639 Roundtrip, found 2 days ago

$639

Roundtrip

found 2 days ago

Select Air Canada flight, departing Mon, Sep 23 from O'Hare Intl. to Heathrow, returning Wed, Oct 2, priced at $639 found 2 days ago

Mon, Sep 23 - Wed, Oct 2

ORD

O'Hare Intl.

LHR

Heathrow

$641 Roundtrip, found 2 days ago

$641

Roundtrip

found 2 days ago

Select Delta flight, departing Mon, Sep 23 from O'Hare Intl. to Heathrow, returning Wed, Oct 2, priced at $641 found 2 days ago

Wed, May 1 - Wed, May 8

ORD

O'Hare Intl.

LHR

Heathrow

$645 Roundtrip, found 1 day ago

$645

Roundtrip

found 1 day ago

Select Austrian Airlines flight, departing Wed, May 1 from O'Hare Intl. to Heathrow, returning Wed, May 8, priced at $645 found 1 day ago

Mon, Sep 23 - Wed, Oct 2

ORD

O'Hare Intl.

LCY

London City

$646 Roundtrip, found 6 days ago

$646

Roundtrip

found 6 days ago

Select Virgin Atlantic flight, departing Mon, Sep 23 from O'Hare Intl. to London City, returning Wed, Oct 2, priced at $646 found 6 days ago

Mon, Sep 23 - Wed, Oct 2

ORD

O'Hare Intl.

LHR

Heathrow

$657 Roundtrip, found 2 days ago

$657

Roundtrip

found 2 days ago

Select KLM flight, departing Mon, Sep 23 from O'Hare Intl. to Heathrow, returning Wed, Oct 2, priced at $657 found 2 days ago

Mon, Sep 23 - Wed, Oct 2

ORD

O'Hare Intl.

LHR

Heathrow

$666 Roundtrip, found 2 days ago

$666

Roundtrip

found 2 days ago

Select Lufthansa flight, departing Mon, Sep 23 from O'Hare Intl. to Heathrow, returning Wed, Oct 2, priced at $666 found 2 days ago

Sun, Sep 8 - Wed, Sep 18

ORD

O'Hare Intl.

LCY

London City

$738 Roundtrip, found 6 days ago

$738

Roundtrip

found 6 days ago

Select Swiss International Air Lines flight, departing Sun, Sep 8 from O'Hare Intl. to London City, returning Wed, Sep 18, priced at $738 found 6 days ago

Mon, Sep 23 - Wed, Oct 2

ORD

O'Hare Intl.

LHR

Heathrow

$777 Roundtrip, found 2 days ago

$777

Roundtrip

found 2 days ago

Select Turkish Airlines flight, departing Mon, Sep 23 from O'Hare Intl. to Heathrow, returning Wed, Oct 2, priced at $777 found 2 days ago

Mon, Sep 23 - Wed, Oct 2

ORD

O'Hare Intl.

LHR

Heathrow

$814 Roundtrip, found 2 days ago

$814

Roundtrip

found 2 days ago

Select Iberia flight, departing Mon, Sep 23 from O'Hare Intl. to Heathrow, returning Wed, Oct 2, priced at $814 found 2 days ago

Sun, Jul 21 - Thu, Aug 8

ORD

O'Hare Intl.

LGW

Gatwick

$831 Roundtrip, found 6 days ago

$831

Roundtrip

found 6 days ago

Select Delta flight, departing Sun, Jul 21 from O'Hare Intl. to Gatwick, returning Thu, Aug 8, priced at $831 found 6 days ago

Mon, Sep 23 - Wed, Oct 2

ORD

O'Hare Intl.

LHR

Heathrow

$833 Roundtrip, found 2 days ago

$833

Roundtrip

found 2 days ago

Select Brussels Airlines flight, departing Mon, Sep 23 from O'Hare Intl. to Heathrow, returning Wed, Oct 2, priced at $833 found 2 days ago

Wed, May 1 - Wed, May 8

ORD

O'Hare Intl.

LHR

Heathrow

$859 Roundtrip, found 1 day ago

$859

Roundtrip

found 1 day ago

Select JetBlue Airways flight, departing Wed, May 1 from O'Hare Intl. to Heathrow, returning Wed, May 8, priced at $859 found 1 day ago

Wed, May 1 - Wed, May 8

ORD

O'Hare Intl.

LHR

Heathrow

$1,015 Roundtrip, found 1 day ago

$1,015

Roundtrip

found 1 day ago

Select Finnair flight, departing Wed, May 1 from O'Hare Intl. to Heathrow, returning Wed, May 8, priced at $1,015 found 1 day ago