$328 Find Cheap Flights from Washington Dulles Airport to London Heathrow Airport - Compare and Save

These are the earliest and latest flight times available from Washington, D.C. Dulles Intl Airport to London Heathrow Airport:

• Earliest: departs at 5:45 pm and lands at 1:09 am
• Latest: departs at 11:15 pm and lands at 6:39 am.

The flight takes about 7h 24m.

Four cabin classes are available on flights from Washington, D.C. Dulles Intl Airport to London Heathrow Airport:

• Economy Class
• Premium Economy Class
• Business Class
• First Class

Prices vary by airline.

A nonstop flight from Washington, D.C. Dulles Intl Airport to London Heathrow Airport takes 7h 24m, covering 3,664 miles.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Round-trip flights from Washington, D.C. Dulles Intl Airport to London Heathrow Airport range from $733 to $1,166, with an average of $924 over the past 12 months. Anything below $733 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 9% above the $924 route average. Book 23 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $511 round-trip via New York John F Kennedy Intl (JFK), compared to $952 for nonstop.

Virgin Atlantic is slightly above the route average for timely arrivals, while British Airways has a lower on-time arrival rate. On-time arrival rates on Washington, D.C. Dulles Intl Airport to London Heathrow Airport flights are:

• Virgin Atlantic: 88% on time
• British Airways: 85% on time
• United Airlines: 76% on time

Overall, flights on this route are punctual 82% of the time on average.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $61–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Boeing 777 family is used most often on this route, operated mainly by British Airways and United Airlines. Other aircraft seen on the route include Boeing 777-300ER variants.

Evening is the busiest departure period on Washington, D.C. Dulles Intl Airport to London Heathrow Airport flights, with 60% of flights leaving in that window. Night departures account for 40%, morning flights for 0%, and afternoon flights for 0%.

Three airlines offer in-flight Wi-Fi on Washington, D.C. Dulles Intl Airport to London Heathrow Airport flights:

• American Airlines
• Delta
• Finnair

Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

One-way fares from Washington, D.C. Dulles Intl Airport to London Heathrow Airport are currently lower than usual. Average one-way flight prices are about $332, which is 36% below the typical average for this route.

London Heathrow Airport (LHR) hosts 5 major car rental companies, with daily rates starting from around $7 for economy cars. Top options include:

• GREEN MOTION
• DRIVALIA
• Europcar
• Alamo
• Hertz

Flights from Washington, D.C. Dulles Intl Airport to London Heathrow Airport usually depart from Washington, D.C. Dulles Intl (IAD) and arrive at London Heathrow (LHR).

Afternoon flights have the fewest delays on this route, while evening departures tend to have the most.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Washington, D.C. Dulles Intl Airport to London Heathrow Airport route, 18% of flights were delayed in the past 3 months, with delays averaging 2h 49m.

One-stop flights from Washington, D.C. Dulles Intl Airport to London Heathrow Airport most commonly connect through:

• Reykjavik Keflavik Intl (KEF) - 42% of one-stop connections
• Dublin (DUB) - 28% of one-stop connections
• Lisbon Humberto Delgado (LIS) - 12% of one-stop connections
• Kastrup Copenhagen (CPH) - 9% of one-stop connections

Yes. Flexible dates can save you up to 14% on flights from Washington, D.C. Dulles Intl Airport to London Heathrow Airport. Wednesday is the cheapest departure day at $880 round-trip on average, while Saturday is the most expensive at $1,022, a difference of $142.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

3 airlines operate flights between Washington, D.C. Dulles Intl Airport and London Heathrow Airport. The airlines offering nonstop flights on this route include:

• British Airways
• United Airlines
• Virgin Atlantic

Flying via Amsterdam Schiphol (AMS) gives the shortest average 1-stop total travel time at 10h 45m, compared with 10h 47m via Dublin (DUB) and 11h 15m via New York John F Kennedy Intl (JFK).

London Heathrow Airport is 5 hours ahead of Washington, D.C. Dulles Intl Airport (British Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in London Heathrow Airport are Hyde Park and Buckingham Palace. These are among the most viewed places in London Heathrow Airport on KAYAK.

Among airlines operating Washington, D.C. Dulles Intl Airport to London Heathrow Airport flights:

• British Airways: offers extra legroom; offers free seat selection
• United Airlines: offers extra legroom; offers free seat selection
• American Airlines: offers free seat selection
• Virgin Atlantic: offers extra legroom; offers free seat selection
• Delta: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• British Airways: a cabin bag and a checked bag in Economy Class
• United Airlines: a cabin bag and a checked bag in Economy Class
• American Airlines: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

Travelers can take a train to central London from London Heathrow Airport (LHR). Trains leave Heathrow Central Station and arrive at Paddington Station in about 15 minutes.

Yes. There are rental car desks at London Heathrow Airport in the main arrival areas after baggage claim / customs areas of Terminals 2, 3, 4 and 5.

No. US citizens traveling from IAD to LHR for leisure and some types of business for six months or less do not need a visa. Travelers may be asked to show proof of funds and travel and the passport should be valid for at least the length of the stay.

To cater to travelers with limited mobility and disabilities, Dulles Airport offers a wide range of accessibility services. These include elevators with Braille signage and self-voicing announcements, wheelchair access, a pet relief area for service or companion dogs, public restrooms with disability access and assisted security screenings.

Yes. Washington Dulles International Airport (IAD) has a lot just across from the main terminal. The garages are a longer walk to the terminal than that lot. There is also an economy lot off Rudder Road with 24/7 shuttle service to the terminal.