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.

Tue, Sep 30 - Tue, Oct 7

ORD

O'Hare Intl.

LHR

Heathrow

$522 Roundtrip, found 2 days ago

$522

Roundtrip

found 2 days ago

Select Icelandair flight, departing Tue, Sep 30 from O'Hare Intl. to Heathrow, returning Tue, Oct 7, priced at $522 found 2 days ago

Wed, Sep 3 - Wed, Sep 10

ORD

O'Hare Intl.

LHR

Heathrow

$522 Roundtrip, found 3 days ago

$522

Roundtrip

found 3 days ago

Select Virgin Atlantic flight, departing Wed, Sep 3 from O'Hare Intl. to Heathrow, returning Wed, Sep 10, priced at $522 found 3 days ago

Sun, Sep 28 - Tue, Oct 7

ORD

O'Hare Intl.

LHR

Heathrow

$528 Roundtrip, found 2 days ago

$528

Roundtrip

found 2 days ago

Select Icelandair flight, departing Sun, Sep 28 from O'Hare Intl. to Heathrow, returning Tue, Oct 7, priced at $528 found 2 days ago

Fri, Sep 5 - Fri, Sep 12

ORD

O'Hare Intl.

LGW

Gatwick

$533 Roundtrip, found 6 days ago

$533

Roundtrip

found 6 days ago

Select Icelandair flight, departing Fri, Sep 5 from O'Hare Intl. to Gatwick, returning Fri, Sep 12, priced at $533 found 6 days ago

Wed, Sep 3 - Tue, Sep 9

ORD

O'Hare Intl.

LHR

Heathrow

$536 Roundtrip, found 3 days ago

$536

Roundtrip

found 3 days ago

Select Icelandair flight, departing Wed, Sep 3 from O'Hare Intl. to Heathrow, returning Tue, Sep 9, priced at $536 found 3 days ago

Sun, Sep 28 - Wed, Oct 8

ORD

O'Hare Intl.

LHR

Heathrow

$551 Roundtrip, found 2 days ago

$551

Roundtrip

found 2 days ago

Select British Airways flight, departing Sun, Sep 28 from O'Hare Intl. to Heathrow, returning Wed, Oct 8, priced at $551 found 2 days ago

Fri, Sep 5 - Fri, Sep 12

ORD

O'Hare Intl.

LHR

Heathrow

$575 Roundtrip, found 6 days ago

$575

Roundtrip

found 6 days ago

Select American Airlines flight, departing Fri, Sep 5 from O'Hare Intl. to Heathrow, returning Fri, Sep 12, priced at $575 found 6 days ago

Tue, Aug 5 - Tue, Aug 12

ORD

O'Hare Intl.

LHR

Heathrow

$581 Roundtrip, found 3 days ago

$581

Roundtrip

found 3 days ago

Select United flight, departing Tue, Aug 5 from O'Hare Intl. to Heathrow, returning Tue, Aug 12, priced at $581 found 3 days ago

Sun, Sep 7 - Sun, Sep 14

ORD

O'Hare Intl.

LHR

Heathrow

$582 Roundtrip, found 6 days ago

$582

Roundtrip

found 6 days ago

Select TAP Portugal flight, departing Sun, Sep 7 from O'Hare Intl. to Heathrow, returning Sun, Sep 14, priced at $582 found 6 days ago

Mon, Sep 22 - Thu, Oct 9

ORD

O'Hare Intl.

LHR

Heathrow

$595 Roundtrip, found 3 days ago

$595

Roundtrip

found 3 days ago

Select Delta flight, departing Mon, Sep 22 from O'Hare Intl. to Heathrow, returning Thu, Oct 9, priced at $595 found 3 days ago

Thu, Sep 4 - Mon, Sep 8

ORD

O'Hare Intl.

LHR

Heathrow

$605 Roundtrip, found 3 days ago

$605

Roundtrip

found 3 days ago

Select Scandinavian Airlines flight, departing Thu, Sep 4 from O'Hare Intl. to Heathrow, returning Mon, Sep 8, priced at $605 found 3 days ago

Fri, Sep 5 - Fri, Sep 12

ORD

O'Hare Intl.

LHR

Heathrow

$695 Roundtrip, found 6 days ago

$695

Roundtrip

found 6 days ago

Select Air Canada flight, departing Fri, Sep 5 from O'Hare Intl. to Heathrow, returning Fri, Sep 12, priced at $695 found 6 days ago

Fri, Sep 5 - Fri, Sep 12

ORD

O'Hare Intl.

LHR

Heathrow

$708 Roundtrip, found 6 days ago

$708

Roundtrip

found 6 days ago

Select Austrian Airlines flight, departing Fri, Sep 5 from O'Hare Intl. to Heathrow, returning Fri, Sep 12, priced at $708 found 6 days ago

Fri, Sep 5 - Fri, Sep 12

ORD

O'Hare Intl.

LHR

Heathrow

$725 Roundtrip, found 6 days ago

$725

Roundtrip

found 6 days ago

Select JetBlue Airways flight, departing Fri, Sep 5 from O'Hare Intl. to Heathrow, returning Fri, Sep 12, priced at $725 found 6 days ago

Fri, Sep 5 - Sat, Sep 13

ORD

O'Hare Intl.

LHR

Heathrow

$758 Roundtrip, found 3 days ago

$758

Roundtrip

found 3 days ago

Select Lufthansa flight, departing Fri, Sep 5 from O'Hare Intl. to Heathrow, returning Sat, Sep 13, priced at $758 found 3 days ago

Fri, Sep 5 - Fri, Sep 12

ORD

O'Hare Intl.

LHR

Heathrow

$775 Roundtrip, found 6 days ago

$775

Roundtrip

found 6 days ago

Select Finnair flight, departing Fri, Sep 5 from O'Hare Intl. to Heathrow, returning Fri, Sep 12, priced at $775 found 6 days ago

Fri, Sep 5 - Fri, Sep 12

MDW

Midway Intl.

LHR

Heathrow

$802 Roundtrip, found 6 days ago

$802

Roundtrip

found 6 days ago

Select Delta flight, departing Fri, Sep 5 from Midway Intl. to Heathrow, returning Fri, Sep 12, priced at $802 found 6 days ago

Fri, Sep 5 - Fri, Sep 12

ORD

O'Hare Intl.

LHR

Heathrow

$803 Roundtrip, found 6 days ago

$803

Roundtrip

found 6 days ago

Select Iberia flight, departing Fri, Sep 5 from O'Hare Intl. to Heathrow, returning Fri, Sep 12, priced at $803 found 6 days ago

Fri, Aug 8 - Mon, Aug 11

ORD

O'Hare Intl.

LHR

Heathrow

$837 Roundtrip, found 3 days ago

$837

Roundtrip

found 3 days ago

Select Brussels Airlines flight, departing Fri, Aug 8 from O'Hare Intl. to Heathrow, returning Mon, Aug 11, priced at $837 found 3 days ago

Thu, Sep 4 - Sat, Sep 13

ORD

O'Hare Intl.

LHR

Heathrow

$1,199 Roundtrip, found 3 days ago

$1,199

Roundtrip

found 3 days ago

Select Turkish Airlines flight, departing Thu, Sep 4 from O'Hare Intl. to Heathrow, returning Sat, Sep 13, priced at $1,199 found 3 days ago