BA's Club Suite offers private pods with a door, enhancing comfort on long-haul flights.
BA's World Traveller Plus offers extra seat width and legroom, ideal for long-haul comfort.
Round-trip from | $658 (Expedia) |
---|---|
One-way from | $354 (Mytrip) |
Popular in | August |
Cheapest in | February |
Average price | $958 |
Good round-trip deal | $672 or less |
Good one-way deal | $701 or less |
Fly from
Fly to
Route
Depart
Return
Price
LondonWashington, D.C.
LHR - IAD
LHRIAD
London Heathrow
Sun 8/17
12:40 pm-9:37 am
2 stops25h 57m
Washington, D.C. Dulles Intl
Wed 9/17
5:47 pm-12:20 pm
1 stop13h 33m
LondonWashington, D.C.
LHR - DCA
LHRDCA
London Heathrow
Sun 9/7
9:45 am-11:07 pm
1 stop18h 22m
Washington, D.C. Reagan-National
Sat 9/13
7:23 pm-9:40 pm
1 stop21h 17m
LondonWashington, D.C.
LHR - DCA
LHRDCA
London Heathrow
Wed 10/1
8:25 am-6:00 pm
1 stop14h 35m
Washington, D.C. Reagan-National
Wed 10/29
6:00 am-8:45 pm
1 stop10h 45m
LondonWashington, D.C.
LHR - IAD
LHRIAD
London Heathrow
Thu 8/28
8:00 am-3:20 pm
1 stop12h 20m
Washington, D.C. Dulles Intl
Wed 9/3
5:50 pm-10:20 am
1 stop11h 30m
LondonWashington, D.C.
LHR - DCA
LHRDCA
London Heathrow
Thu 8/28
11:45 am-11:41 pm
2 stops16h 56m
Washington, D.C. Reagan-National
Wed 9/10
4:45 pm-10:45 am
2 stops13h 00m
LondonWashington, D.C.
LHR - DCA
LHRDCA
London Heathrow
Mon 9/8
9:30 am-3:51 pm
1 stop11h 21m
Washington, D.C. Reagan-National
Fri 9/12
9:40 am-6:30 am
1 stop15h 50m
LondonWashington, D.C.
LHR - IAD
LHRIAD
London Heathrow
Mon 8/25
9:05 pm-7:59 pm
2 stops27h 54m
Washington, D.C. Dulles Intl
Sun 8/31
10:05 pm-9:40 pm
1 stop18h 35m
LondonWashington, D.C.
LHR - IAD
LHRIAD
London Heathrow
Thu 8/28
6:00 am-3:25 pm
2 stops38h 25m
Washington, D.C. Dulles Intl
Mon 9/8
5:16 pm-5:55 am
2 stops31h 39m
LondonWashington, D.C.
LHR - DCA
LHRDCA
London Heathrow
Wed 7/16
11:55 am-10:58 pm
1 stop16h 03m
Washington, D.C. Reagan-National
Wed 7/30
8:40 am-6:30 am
1 stop16h 50m
LondonWashington, D.C.
LHR - IAD
LHRIAD
London Heathrow
Thu 8/7
10:55 am-7:51 pm
1 stop13h 56m
Washington, D.C. Dulles Intl
Sat 8/16
12:13 pm-10:15 am
1 stop17h 02m
Booking 79 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Currently, August is the cheapest month in which you can book a flight from London Heathrow Airport to Washington, D.C. (average of $309). Flying from London Heathrow Airport to Washington, D.C. in July is currently the most expensive (average of $345). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
When flying from London Heathrow Airport to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 16% versus a flight in the morning.
Travelers seeking maximum savings on their London Heathrow Airport to Washington, D.C. flight should consider departing on Friday evenings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from LHR to WAS are scheduled on a Wednesday (27 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 on average).
Boarding
Food
Crew
Comfort
Entertainment
Overall
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Entertainment
Overall
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Entertainment
Overall
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Entertainment
Overall
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Entertainment
Overall
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Entertainment
Overall
Reviews
Kim,May 2025
PIH - SLC
Airline | Cheapest | Average | Flexibility | On-time |
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Cheapest$390 | Average$833 | FlexibilityNo cancel fee | On-time77% | |
Cheapest$392 | Average$560 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$431 | Average$985 | FlexibilityNo cancel fee | On-time78% | |
Cheapest$473 | Average$752 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$510 | Average$986 | FlexibilityNo cancel fee | On-time76% | |
Cheapest$595 | Average$872 | FlexibilityNo cancel fee | On-time70% | |
Cheapest$619 | Average$787 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$652 | Average$816 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$652 | Average$999 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$682 | Average$884 | FlexibilityNo cancel fee | On-time69% |