$282 Find Cheap Flights from Washington, D.C. to London Heathrow Airport - Compare and Save

For customers with layover flights who want to get a quick nap within the airport grounds, there are sofas and sleep-friendly seating distributed across Terminals 2, 3, and 4. Terminal 3, Airside has a specially designated resting zone with lounges and snack machines while Terminal 4 has sleep cabins. You can also sleep in hotels connected to Terminals 4 and 5 like Aerotel London Heathrow and Hilton London Heathrow Airport.

Yes. For wheelchair users, IAD provides free wheelchair services, air shuttle buses with wheelchair lifts, designated parking spaces, designated public restrooms with accessible facilities, and accessible telephones. For the visually impaired, all the elevators have raised braille buttons.

LHR offers a variety of services to enhance the customer’s experience. For infants, their parents can access baby changing facilities in the washrooms found on both Airside and Landside terminals. For older kids up to 9 years old, the children’s play areas located at the Airside departure lounges in Terminals 2A Gate 16, 3, 4 Gates 1-6, and 5A Gate A7 are open for around 15h a day. Some airport restaurants, often indicated, allow kids to eat free.

LHR has a central bus station that runs 24h a day that can be accessed from all the terminals either by walking or by boarding the free shuttle bus courtesy of LHR. At the station, travelers can board coaches or local buses that charge approximately £9 ($11) to get to. Travelers can also rent a car from car rental companies at the airport that charge around £22 ($26) per day. Taxis located outside each terminal charge around £30 ($37) to Central London. The Heathrow Connect train that runs at intervals of around 15min transports passengers between LHR and Paddington Station charging around £25 ($30).

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

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

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

• British Airways
• United Airlines
• Virgin Atlantic

Flights from Washington, D.C. to London Heathrow Airport may depart from several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD). Flights usually arrive at London Heathrow (LHR).

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
• Virgin Atlantic: a cabin bag and a checked bag in Economy Class

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

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

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

Prices vary by airline.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $605 round-trip via Lisbon Humberto Delgado (LIS), compared to $904 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $70–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

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

• Reykjavik Keflavik Intl (KEF) - 36% of one-stop connections
• Dublin (DUB) - 25% of one-stop connections
• Lisbon Humberto Delgado (LIS) - 10% of one-stop connections
• Kastrup Copenhagen (CPH) - 8% of one-stop connections

Reykjavik Keflavik Intl (KEF) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 13% on the Washington, D.C. to London Heathrow Airport route. Wednesday is the cheapest departure day at $829 round-trip on average, while Saturday is the most expensive at $948, a difference of $119. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

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. to London Heathrow Airport route, 17% of flights were delayed in the past 3 months, with delays averaging 2 hours 44 minutes.

Evening is the busiest departure period on Washington, D.C. to London Heathrow Airport flights, with 50% of flights leaving in that window. Night departures account for 50%, morning flights for 0%, and afternoon flights for 0%.

Some of the most popular sights in London Heathrow Airport are Paddington Station, Central London and London Victoria Station. These are among the most viewed places in London Heathrow Airport on KAYAK.

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

• Earliest: departs at 5:45 pm and lands at 1:11 am
• Latest: departs at 11:15 pm and lands at 6:41 am.

The flight takes about 7h 26m.

Last-minute fares on this route - booked within 2 weeks of departure - run 5% above the route average of $876. Book 5 weeks before departure for the lowest fares.

A nonstop flight from Washington, D.C. to London Heathrow Airport takes 7h 26m, covering 3,649 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.

One-way fares from Washington, D.C. to London Heathrow Airport are currently lower than usual. Average one-way flight prices are about $313, which is 37% below the typical average for this route.

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. to London Heathrow Airport flights are:

• Virgin Atlantic: 88% on time
• British Airways: 86% on time
• United Airlines: 76% on time

Overall, flights on this route are on time 83% of the time on average.

Night flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Flying via Amsterdam Schiphol (AMS) gives the shortest average 1-stop total travel time at 10h 46m, compared with 10h 50m via Dublin (DUB) and 11h 00m via Newark (EWR).

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

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

Round-trip flights from Washington, D.C. to London Heathrow Airport range from $693 to $1,120, with an average of $876 over the past 12 months. Anything below $693 counts as a good deal.

American Airlines is the only airline on the Washington, D.C. to London Heathrow Airport route offering in-flight Wi-Fi. Pricing depends on fare class.