Flights from Washington to London

Cheapest flights from Washington

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.

Sat, Oct 4 - Thu, Oct 9

BWI

Baltimore Washington Intl. Thurgood Marshall

STN

Stansted

$542 Roundtrip, found 6 days ago

$542

Roundtrip

found 6 days ago

Select Fly Play flight, departing Sat, Oct 4 from Baltimore Washington Intl. Thurgood Marshall to Stansted, returning Thu, Oct 9, priced at $542 found 6 days ago

Tue, Sep 2 - Wed, Sep 17

IAD

Washington Dulles Intl.

LGW

Gatwick

$545 Roundtrip, found 3 days ago

$545

Roundtrip

found 3 days ago

Select TAP Portugal flight, departing Tue, Sep 2 from Washington Dulles Intl. to Gatwick, returning Wed, Sep 17, priced at $545 found 3 days ago

Sat, Oct 4 - Thu, Oct 9

DCA

Ronald Reagan Washington National

LHR

Heathrow

$602 Roundtrip, found 6 days ago

$602

Roundtrip

found 6 days ago

Select JetBlue Airways flight, departing Sat, Oct 4 from Ronald Reagan Washington National to Heathrow, returning Thu, Oct 9, priced at $602 found 6 days ago

Mon, Aug 4 - Wed, Aug 13

IAD

Washington Dulles Intl.

LHR

Heathrow

$603 Roundtrip, found 2 days ago

$603

Roundtrip

found 2 days ago

Select Delta flight, departing Mon, Aug 4 from Washington Dulles Intl. to Heathrow, returning Wed, Aug 13, priced at $603 found 2 days ago

Sat, Oct 4 - Thu, Oct 9

IAD

Washington Dulles Intl.

LHR

Heathrow

$605 Roundtrip, found 6 days ago

$605

Roundtrip

found 6 days ago

Select Scandinavian Airlines flight, departing Sat, Oct 4 from Washington Dulles Intl. to Heathrow, returning Thu, Oct 9, priced at $605 found 6 days ago

Tue, Jul 15 - Wed, Jul 23

IAD

Washington Dulles Intl.

LHR

Heathrow

$612 Roundtrip, found 2 days ago

$612

Roundtrip

found 2 days ago

Select British Airways flight, departing Tue, Jul 15 from Washington Dulles Intl. to Heathrow, returning Wed, Jul 23, priced at $612 found 2 days ago

Thu, Sep 4 - Wed, Sep 17

IAD

Washington Dulles Intl.

LGW

Gatwick

$630 Roundtrip, found 3 days ago

$630

Roundtrip

found 3 days ago

Select Icelandair flight, departing Thu, Sep 4 from Washington Dulles Intl. to Gatwick, returning Wed, Sep 17, priced at $630 found 3 days ago

Wed, Oct 1 - Tue, Oct 7

IAD

Washington Dulles Intl.

LHR

Heathrow

$637 Roundtrip, found 6 days ago

$637

Roundtrip

found 6 days ago

Select Virgin Atlantic flight, departing Wed, Oct 1 from Washington Dulles Intl. to Heathrow, returning Tue, Oct 7, priced at $637 found 6 days ago

Thu, Aug 7 - Wed, Aug 13

IAD

Washington Dulles Intl.

LHR

Heathrow

$661 Roundtrip, found 2 days ago

$661

Roundtrip

found 2 days ago

Select United flight, departing Thu, Aug 7 from Washington Dulles Intl. to Heathrow, returning Wed, Aug 13, priced at $661 found 2 days ago

Sat, Oct 4 - Thu, Oct 9

BWI

Baltimore Washington Intl. Thurgood Marshall

LHR

Heathrow

$671 Roundtrip, found 6 days ago

$671

Roundtrip

found 6 days ago

Select Icelandair flight, departing Sat, Oct 4 from Baltimore Washington Intl. Thurgood Marshall to Heathrow, returning Thu, Oct 9, priced at $671 found 6 days ago

Mon, Jul 21 - Sun, Jul 27

IAD

Washington Dulles Intl.

LHR

Heathrow

$680 Roundtrip, found 3 days ago

$680

Roundtrip

found 3 days ago

Select American Airlines flight, departing Mon, Jul 21 from Washington Dulles Intl. to Heathrow, returning Sun, Jul 27, priced at $680 found 3 days ago

Tue, Sep 30 - Mon, Oct 6

IAD

Washington Dulles Intl.

LHR

Heathrow

$688 Roundtrip, found 1 day ago

$688

Roundtrip

found 1 day ago

Select Delta flight, departing Tue, Sep 30 from Washington Dulles Intl. to Heathrow, returning Mon, Oct 6, priced at $688 found 1 day ago

Fri, Sep 5 - Sat, Sep 20

IAD

Washington Dulles Intl.

LGW

Gatwick

$734 Roundtrip, found 3 days ago

$734

Roundtrip

found 3 days ago

Select Swiss International Air Lines flight, departing Fri, Sep 5 from Washington Dulles Intl. to Gatwick, returning Sat, Sep 20, priced at $734 found 3 days ago

Mon, Apr 27 - Thu, Apr 30

IAD

Washington Dulles Intl.

LHR

Heathrow

$793 Roundtrip, found 5 days ago

$793

Roundtrip

found 5 days ago

Select Air France flight, departing Mon, Apr 27 from Washington Dulles Intl. to Heathrow, returning Thu, Apr 30, priced at $793 found 5 days ago

Mon, Apr 27 - Thu, Apr 30

IAD

Washington Dulles Intl.

LCY

London City

$814 Roundtrip, found 5 days ago

$814

Roundtrip

found 5 days ago

Select Virgin Atlantic flight, departing Mon, Apr 27 from Washington Dulles Intl. to London City, returning Thu, Apr 30, priced at $814 found 5 days ago

Fri, Sep 5 - Sat, Sep 20

IAD

Washington Dulles Intl.

LGW

Gatwick

$842 Roundtrip, found 3 days ago

$842

Roundtrip

found 3 days ago

Select ITA Airways flight, departing Fri, Sep 5 from Washington Dulles Intl. to Gatwick, returning Sat, Sep 20, priced at $842 found 3 days ago

Mon, Apr 27 - Thu, Apr 30

IAD

Washington Dulles Intl.

LCY

London City

$866 Roundtrip, found 5 days ago

$866

Roundtrip

found 5 days ago

Select KLM flight, departing Mon, Apr 27 from Washington Dulles Intl. to London City, returning Thu, Apr 30, priced at $866 found 5 days ago

Thu, Aug 7 - Sun, Aug 10

IAD

Washington Dulles Intl.

LHR

Heathrow

$915 Roundtrip, found 2 days ago

$915

Roundtrip

found 2 days ago

Select Aer Lingus flight, departing Thu, Aug 7 from Washington Dulles Intl. to Heathrow, returning Sun, Aug 10, priced at $915 found 2 days ago

Mon, Jul 21 - Sun, Jul 27

IAD

Washington Dulles Intl.

LHR

Heathrow

$944 Roundtrip, found 3 days ago

$944

Roundtrip

found 3 days ago

Select Lufthansa flight, departing Mon, Jul 21 from Washington Dulles Intl. to Heathrow, returning Sun, Jul 27, priced at $944 found 3 days ago

Thu, Aug 7 - Sun, Aug 10

IAD

Washington Dulles Intl.

LHR

Heathrow

$949 Roundtrip, found 2 days ago

$949

Roundtrip

found 2 days ago

Select Air Canada flight, departing Thu, Aug 7 from Washington Dulles Intl. to Heathrow, returning Sun, Aug 10, priced at $949 found 2 days ago