C$ 451 Find Cheap Flights from Washington, D.C. to London – 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 1:07 am
• Latest: departs at 11:20 pm and lands at 6:42 am.

The flight takes about 7h 22m.

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

• Economy Class
• Premium Economy Class

A direct flight from Washington, D.C. Dulles Intl Airport to London Heathrow Airport takes 7h 22m, covering 9,491 km.

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 C$ 1,027 to C$ 1,633, with an average of C$ 1,295 over the past 12 months. Anything below C$ 1,027 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 9% above the C$ 1,295 route average. Book 23 weeks before departure for the lowest fares.

On this route, layover flights are cheaper than direct options on average. Layover fares average C$ 715 round-trip via New York John F Kennedy Intl (JFK), compared to C$ 1,332 for direct.

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

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

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge C$ 85–C$ 140 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% 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 C$ 466, 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 C$ 10 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 three 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 C$ 1,232 round-trip on average, while Saturday is the most expensive at C$ 1,431, a difference of C$ 199.

KAYAK's flexible dates feature shows options up to three 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 direct 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 4 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 Trafalgar Square, Hyde Park, and London Eye. 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 carry-on bag and a checked bag in Economy Class
• United Airlines: a carry-on bag and a checked bag in Economy Class
• American Airlines: a carry-on bag and a checked bag in Economy Class

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

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.

Passengers wishing to fly from Washington, DC, to London can get nonstop flights from several airlines, including Lufthansa. Other nonstop flights are operated by multiple airlines, although the tickets come at a higher price. Most flights operated by American Airlines, Finnair, Icelandair, Delta Air Lines, and Virgin Atlantic have one- or two-stop flights. Depending on the airline, you may board your connecting flight in Keflavik, Dallas, Chicago, Helsinki, Boston, or Atlanta.

There are hotels located right within Heathrow Airport. They include the Hilton Garden Inn Airport Hotel, situated right next to Terminal 2 and a few minutes walk to Terminal 3. Alternatively, you can choose to stay at the Aerotel London Heathrow situated near Terminal 2 and 3. Other hotels within a comfortable walking distance include the Novotel London Heathrow Airport T1 T2 and T3, Ibis Styles London Heathrow Airport, Radisson Blu Edwardian Heathrow Hotel, and more.

You can get from London-Heathrow Airport to the city center by train. You can board a train from Heathrow Central Station, located about 5min from terminals 2 and 3. You can get train tickets at the automated ticketing machines or booking office at the station. Trains from the airport arrive in the downtown area at Paddington Station after about 15min.