Cheap Flights from Washington Dulles Intl. to Heathrow

Prices were available within the past 7 days and starts at $291 for one-way flights and $472 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Mar 21
IAD
Washington
to
LHR
London
$291

One way

just found

Open IAD to LHR flights search result page
Tue, Jan 11
IAD
Washington
to
LHR
London
$291

One way

just found

Open IAD to LHR flights search result page
Mon, May 9
IAD
Washington
to
LHR
London
$291

One way

just found

Open IAD to LHR flights search result page
Tue, Jan 11
IAD
Washington
to
LHR
London
$291

One way

just found

Open IAD to LHR flights search result page
Mon, Mar 21
IAD
Washington
to
LHR
London
$291

One way

just found

Open IAD to LHR flights search result page
Tue, Aug 17
IAD
Washington
to
LHR
London
$291

One way

just found

Open IAD to LHR flights search result page
Mon, Mar 21
IAD
Washington
to
LHR
London
$296

One way

just found

Open IAD to LHR flights search result page
Mon, Mar 21
IAD
Washington
to
LHR
London
$305

One way

just found

Open IAD to LHR flights search result page
Mon, Mar 21
IAD
Washington
to
LHR
London
$306

One way

just found

Open IAD to LHR flights search result page
Tue, Jan 11
IAD
Washington
to
LHR
London
$306

One way

just found

Open IAD to LHR flights search result page
Tue, Jan 18 - Sun, Jan 23
IAD
Washington
to
LHR
London
$472

Roundtrip

just found

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Mon, Jul 26 - Wed, Sep 1
IAD
Washington
to
LHR
London
$498

Roundtrip

found 3 hours ago

Open IAD to LHR flights search result page
Thu, Dec 23 - Thu, Jan 6
IAD
Washington
to
LHR
London
$632

Roundtrip

found 3 days ago

Open IAD to LHR flights search result page
Thu, Dec 23 - Thu, Jan 6
IAD
Washington
to
LHR
London
$632

Roundtrip

found 3 days ago

Open IAD to LHR flights search result page
Mon, Aug 9 - Sun, Aug 22
IAD
Washington
to
LHR
London
$636

Roundtrip

just found

Open IAD to LHR flights search result page
Tue, Jan 11 - Tue, Jan 18
IAD
Washington
to
LHR
London
$639

Roundtrip

just found

Open IAD to LHR flights search result page
Tue, Jan 11 - Tue, Jan 18
IAD
Washington
to
LHR
London
$639

Roundtrip

just found

Open IAD to LHR flights search result page
Tue, Dec 7 - Tue, Jan 11
IAD
Washington
to
LHR
London
$639

Roundtrip

found 1 day ago

Open IAD to LHR flights search result page
Wed, Dec 29 - Wed, Jan 5
IAD
Washington
to
LHR
London
$648

Roundtrip

just found

Open IAD to LHR flights search result page
Thu, Mar 3 - Sun, Mar 20
IAD
Washington
to
LHR
London
$658

Roundtrip

found 3 hours ago

Open IAD to LHR flights search result page
Mon, Mar 21
IAD
Washington
to
LHR
London
$291

One way

just found

Open IAD to LHR flights search result page
Tue, Jan 11
IAD
Washington
to
LHR
London
$291

One way

just found

Open IAD to LHR flights search result page
Mon, May 9
IAD
Washington
to
LHR
London
$291

One way

just found

Open IAD to LHR flights search result page
Tue, Jan 11
IAD
Washington
to
LHR
London
$291

One way

just found

Open IAD to LHR flights search result page
Mon, Mar 21
IAD
Washington
to
LHR
London
$291

One way

just found

Open IAD to LHR flights search result page
Tue, Aug 17
IAD
Washington
to
LHR
London
$291

One way

just found

Open IAD to LHR flights search result page
Mon, Mar 21
IAD
Washington
to
LHR
London
$296

One way

just found

Open IAD to LHR flights search result page
Mon, Mar 21
IAD
Washington
to
LHR
London
$305

One way

just found

Open IAD to LHR flights search result page
Mon, Mar 21
IAD
Washington
to
LHR
London
$306

One way

just found

Open IAD to LHR flights search result page
Tue, Jan 11
IAD
Washington
to
LHR
London
$306

One way

just found

Open IAD to LHR flights search result page
Tue, Jan 18 - Sun, Jan 23
IAD
Washington
to
LHR
London
$472

Roundtrip

just found

Open IAD to LHR flights search result page
Mon, Jul 26 - Wed, Sep 1
IAD
Washington
to
LHR
London
$498

Roundtrip

found 3 hours ago

Open IAD to LHR flights search result page
Thu, Dec 23 - Thu, Jan 6
IAD
Washington
to
LHR
London
$632

Roundtrip

found 3 days ago

Open IAD to LHR flights search result page
Thu, Dec 23 - Thu, Jan 6
IAD
Washington
to
LHR
London
$632

Roundtrip

found 3 days ago

Open IAD to LHR flights search result page
Mon, Aug 9 - Sun, Aug 22
IAD
Washington
to
LHR
London
$636

Roundtrip

just found

Open IAD to LHR flights search result page
Tue, Jan 11 - Tue, Jan 18
IAD
Washington
to
LHR
London
$639

Roundtrip

just found

Open IAD to LHR flights search result page
Tue, Jan 11 - Tue, Jan 18
IAD
Washington
to
LHR
London
$639

Roundtrip

just found

Open IAD to LHR flights search result page
Tue, Dec 7 - Tue, Jan 11
IAD
Washington
to
LHR
London
$639

Roundtrip

found 1 day ago

Open IAD to LHR flights search result page
Wed, Dec 29 - Wed, Jan 5
IAD
Washington
to
LHR
London
$648

Roundtrip

just found

Open IAD to LHR flights search result page
Thu, Mar 3 - Sun, Mar 20
IAD
Washington
to
LHR
London
$658

Roundtrip

found 3 hours ago

Open IAD to LHR flights search result page

Flights from Washington to London: Reviews from verified customers

Mar 16, 2020

good communication and update emails concerning coronavirus. full refund, no questions asked.

A verified traveler
Washington to London · United
Feb 21, 2020

Great flight

A verified traveler
Washington to London · United
Feb 16, 2020

Would definitely fly Virgin again and liked the Expedia service as well

A verified traveler
Washington to London · Virgin Atlantic
Jan 1, 2020

Happy New Year

A verified traveler
Washington to London · United
Dec 26, 2019

The online entertainment did not work properly.

A verified traveler
Washington to London · United
Dec 25, 2019

The entertainment could’ve been updated

A verified traveler
Washington to London · British Airways
Dec 23, 2019

While the staff and overall flight were good, the plane was a bit of a disappointment. I have flown on several business-class flights to Europe and Hawaii in the past few years and this was by far the least enjoyable in terms of the seat. It was dated, small and had no privacy. It was a British Airways operated A380 and it was not even close to the Air France A380, the United 787 or 777. Entertainment was also much more limited compared to the competition. If they are not upgraded, I will certainly not fly British Airways Business-Class again if possible.

A verified traveler
Washington to London · American Airlines
Dec 23, 2019

Transferring to our connecting flight was a nightmare. Our connecting flight was not listed on the information screen and we nearly missed our connection to Germany.

A verified traveler
Washington to London · British Airways
Dec 18, 2019

The plane was really small in economy and my knees hurt. The leg space was really small on this aircraft.

A verified traveler
Washington to London · British Airways
Dec 12, 2019

WiFi didn’t seem to work so I was without music. Also, rows of empty seats were seatbelted off and covered with blanket.

A verified traveler
Washington to London · Virgin Atlantic

Flight from Washington to London route information

Origin Airport Washington Dulles Intl.
Destination Airport Heathrow
Airlines Serving Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, Royal Air Maroc, SAS, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Flight Price $471
Distance 3,666 mi

Washington to London (IAD-LHR) route frequently asked questions

Washington to London Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Washington to London offer the perfect respite. Not only does exploring London provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from Washington to London may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from IAD to LHR today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of London are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to London more flexbily many prefers to purchase one-way tickets with options to take different airlines. One way ticket to London is $291 now!

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