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.

Fri, Oct 31 - Thu, Nov 27

ORD

O'Hare Intl.

LHR

Heathrow

$509 Roundtrip, found 6 days ago

$509

Roundtrip

found 6 days ago

Select Scandinavian Airlines flight, departing Fri, Oct 31 from O'Hare Intl. to Heathrow, returning Thu, Nov 27, priced at $509 found 6 days ago

Mon, Aug 11 - Wed, Aug 20

ORD

O'Hare Intl.

LGW

Gatwick

$574 Roundtrip, found 11 hours ago

$574

Roundtrip

found 11 hours ago

Select Delta flight, departing Mon, Aug 11 from O'Hare Intl. to Gatwick, returning Wed, Aug 20, priced at $574 found 11 hours ago

Tue, Sep 30 - Tue, Oct 7

ORD

O'Hare Intl.

LGW

Gatwick

$612 Roundtrip, found 11 hours ago

$612

Roundtrip

found 11 hours ago

Select JetBlue Airways flight, departing Tue, Sep 30 from O'Hare Intl. to Gatwick, returning Tue, Oct 7, priced at $612 found 11 hours ago

Fri, Oct 3 - Mon, Oct 6

ORD

O'Hare Intl.

LGW

Gatwick

$641 Roundtrip, found 11 hours ago

$641

Roundtrip

found 11 hours ago

Select Icelandair flight, departing Fri, Oct 3 from O'Hare Intl. to Gatwick, returning Mon, Oct 6, priced at $641 found 11 hours ago

Fri, Oct 31 - Thu, Nov 27

ORD

O'Hare Intl.

LHR

Heathrow

$675 Roundtrip, found 6 days ago

$675

Roundtrip

found 6 days ago

Select TAP Portugal flight, departing Fri, Oct 31 from O'Hare Intl. to Heathrow, returning Thu, Nov 27, priced at $675 found 6 days ago

Sun, Sep 14 - Tue, Sep 16

ORD

O'Hare Intl.

LGW

Gatwick

$686 Roundtrip, found 11 hours ago

$686

Roundtrip

found 11 hours ago

Select ITA Airways flight, departing Sun, Sep 14 from O'Hare Intl. to Gatwick, returning Tue, Sep 16, priced at $686 found 11 hours ago

Sun, Sep 14 - Mon, Sep 22

ORD

O'Hare Intl.

LGW

Gatwick

$697 Roundtrip, found 11 hours ago

$697

Roundtrip

found 11 hours ago

Select Swiss International Air Lines flight, departing Sun, Sep 14 from O'Hare Intl. to Gatwick, returning Mon, Sep 22, priced at $697 found 11 hours ago

Tue, Sep 30 - Sat, Oct 11

ORD

O'Hare Intl.

LGW

Gatwick

$730 Roundtrip, found 11 hours ago

$730

Roundtrip

found 11 hours ago

Select Turkish Airlines flight, departing Tue, Sep 30 from O'Hare Intl. to Gatwick, returning Sat, Oct 11, priced at $730 found 11 hours ago

Tue, May 20 - Tue, May 27

ORD

O'Hare Intl.

LHR

Heathrow

$743 Roundtrip, found 6 days ago

$743

Roundtrip

found 6 days ago

Select Virgin Atlantic flight, departing Tue, May 20 from O'Hare Intl. to Heathrow, returning Tue, May 27, priced at $743 found 6 days ago

Mon, Oct 6 - Tue, Oct 7

ORD

O'Hare Intl.

LGW

Gatwick

$749 Roundtrip, found 11 hours ago

$749

Roundtrip

found 11 hours ago

Select British Airways flight, departing Mon, Oct 6 from O'Hare Intl. to Gatwick, returning Tue, Oct 7, priced at $749 found 11 hours ago

Mon, Sep 15 - Tue, Sep 16

ORD

O'Hare Intl.

LGW

Gatwick

$800 Roundtrip, found 11 hours ago

$800

Roundtrip

found 11 hours ago

Select American Airlines flight, departing Mon, Sep 15 from O'Hare Intl. to Gatwick, returning Tue, Sep 16, priced at $800 found 11 hours ago

Mon, Oct 6 - Tue, Oct 7

ORD

O'Hare Intl.

LGW

Gatwick

$961 Roundtrip, found 11 hours ago

$961

Roundtrip

found 11 hours ago

Select Iberia flight, departing Mon, Oct 6 from O'Hare Intl. to Gatwick, returning Tue, Oct 7, priced at $961 found 11 hours ago

Sat, Aug 2 - Sun, Aug 10

ORD

O'Hare Intl.

LHR

Heathrow

$1,034 Roundtrip, found 4 days ago

$1,034

Roundtrip

found 4 days ago

Select United flight, departing Sat, Aug 2 from O'Hare Intl. to Heathrow, returning Sun, Aug 10, priced at $1,034 found 4 days ago

Sat, Aug 2 - Sun, Aug 10

ORD

O'Hare Intl.

LHR

Heathrow

$1,048 Roundtrip, found 4 days ago

$1,048

Roundtrip

found 4 days ago

Select Air Canada flight, departing Sat, Aug 2 from O'Hare Intl. to Heathrow, returning Sun, Aug 10, priced at $1,048 found 4 days ago

Fri, Jul 4 - Thu, Jul 10

ORD

O'Hare Intl.

LCY

London City

$1,101 Roundtrip, found 4 days ago

$1,101

Roundtrip

found 4 days ago

Select Virgin Atlantic flight, departing Fri, Jul 4 from O'Hare Intl. to London City, returning Thu, Jul 10, priced at $1,101 found 4 days ago

Sat, Aug 2 - Sun, Aug 10

ORD

O'Hare Intl.

LHR

Heathrow

$1,105 Roundtrip, found 4 days ago

$1,105

Roundtrip

found 4 days ago

Select Lufthansa flight, departing Sat, Aug 2 from O'Hare Intl. to Heathrow, returning Sun, Aug 10, priced at $1,105 found 4 days ago

Fri, Jul 4 - Thu, Jul 10

ORD

O'Hare Intl.

LCY

London City

$1,153 Roundtrip, found 4 days ago

$1,153

Roundtrip

found 4 days ago

Select KLM flight, departing Fri, Jul 4 from O'Hare Intl. to London City, returning Thu, Jul 10, priced at $1,153 found 4 days ago

Fri, Jul 4 - Thu, Jul 10

ORD

O'Hare Intl.

LHR

Heathrow

$1,267 Roundtrip, found 4 days ago

$1,267

Roundtrip

found 4 days ago

Select Alaska Airlines flight, departing Fri, Jul 4 from O'Hare Intl. to Heathrow, returning Thu, Jul 10, priced at $1,267 found 4 days ago

Sat, Aug 2 - Sun, Aug 10

ORD

O'Hare Intl.

LHR

Heathrow

$1,409 Roundtrip, found 4 days ago

$1,409

Roundtrip

found 4 days ago

Select LOT-Polish Airlines flight, departing Sat, Aug 2 from O'Hare Intl. to Heathrow, returning Sun, Aug 10, priced at $1,409 found 4 days ago

Mon, Aug 11 - Tue, Aug 12

ORD

O'Hare Intl.

LGW

Gatwick

$5,425 Roundtrip, found 11 hours ago

$5,425

Roundtrip

found 11 hours ago

Select Air France flight, departing Mon, Aug 11 from O'Hare Intl. to Gatwick, returning Tue, Aug 12, priced at $5,425 found 11 hours ago