$381 Find Cheap Flights from London Heathrow Airport to Washington, D.C. - Compare and Save

Among airlines operating London Heathrow Airport to Washington, D.C. 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
• Air France: offers extra legroom; offers free seat selection
• American Airlines: offers free seat selection

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

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

• British Airways
• United Airlines
• Virgin Atlantic

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

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

• Lufthansa: a cabin bag and a checked bag in Economy Class
• British Airways: a cabin bag and a checked bag in Economy Class
• Austrian Airlines: 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 London Heathrow Airport to Washington, D.C.:

• 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 $590 round-trip via Reykjavik Keflavik Intl (KEF), compared to $741 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $51–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

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

• Dublin (DUB) - 44% of one-stop connections
• Reykjavik Keflavik Intl (KEF) - 20% of one-stop connections
• Boston Logan Intl (BOS) - 8% of one-stop connections
• Lisbon Humberto Delgado (LIS) - 7% of one-stop connections

Dublin (DUB) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 9% on the London Heathrow Airport to Washington, D.C. route. Thursday is the cheapest departure day at $715 round-trip on average, while Sunday is the most expensive at $778, a difference of $63. 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 London Heathrow Airport to Washington, D.C. route, 16% of flights were delayed in the past 3 months, with delays averaging 2 hours 17 minutes.

Afternoon is the busiest departure period on London Heathrow Airport to Washington, D.C. flights, with 83% of flights leaving in that window. Evening departures account for 16%, morning flights for 1%, and night flights for 0%.

Some of the most popular sights in Washington, D.C. are Walter E. Washington Convention Center, National Mall and Capital One Arena. These are among the most viewed places in Washington, D.C. on KAYAK.

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

• Earliest: departs at 10:50 am and lands at 7:19 pm
• Latest: departs at 5:05 pm and lands at 1:34 am.

The flight takes about 8h 29m.

Last-minute fares on this route - booked within 2 weeks of departure - run 17% above the route average of $734. Book 22 weeks before departure for the lowest fares.

A nonstop flight from London Heathrow Airport to Washington, D.C. takes 8h 29m, 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 London Heathrow Airport to Washington, D.C. are currently lower than usual. Average one-way flight prices are about $438, which is 41% below the typical average for this route.

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

• United Airlines: 90% on time
• Virgin Atlantic: 85% on time
• British Airways: 79% on time

Overall, flights on this route are on time 84% of the time on average.

Afternoon 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 Philadelphia (PHL) gives the shortest average 1-stop total travel time at 10h 29m, compared with 10h 49m via Newark (EWR) and 10h 51m via Dublin (DUB).

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

Since Washington, D.C. is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
Near Washington, D.C. Reagan-National Airport (DCA) — daily rates from around $23:

· Sixt
· Dollar
· Thrifty
· Alamo
· Budget

Near Washington, D.C. Dulles Intl Airport (IAD) — daily rates from around $24:

· Dollar
· Budget
· Hertz
· Sixt
· Thrifty

Round-trip flights from London Heathrow Airport to Washington, D.C. range from $637 to $856, with an average of $734 over the past 12 months. Anything below $637 counts as a good deal.

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

• • KLM
• • Delta