
Most accurate provider | OneTravel 3 stars  | 
|---|---|
Most trusted provider | OneTravel 3 stars  | 
Round-trip from | $544 (TravelUp)  | 
One-way from | $494 (Mytrip)  | 
Popular in | July | 
Cheapest in | February | 
Average price | $672 | 
Good round-trip deal | $767 or less | 
Good one-way deal | $700 or less | 
Fly from
Fly to
Route
Depart
Return
Price
LondonWashington, D.C.
LHR - DCA
LHRDCA
London Heathrow
Mon 12/8
9:20 am-4:00 pm
1 stop11h 40m
Washington, D.C. Reagan-National
Sun 12/14
3:40 pm-6:55 am
1 stop10h 15m
LondonWashington, D.C.
LHR - IAD
LHRIAD
London Heathrow
Mon 12/15
10:00 am-4:05 pm
1 stop11h 05m
Washington, D.C. Dulles Intl
Wed 12/31
10:20 pm-10:50 am
Nonstop7h 30m
LondonWashington, D.C.
LHR - DCA
LHRDCA
London Heathrow
Thu 4/23
11:55 am-10:57 pm
1 stop16h 02m
Washington, D.C. Reagan-National
Mon 4/27
6:05 am-8:45 pm
1 stop9h 40m
LondonWashington, D.C.
LHR - DCA
LHRDCA
London Heathrow
Tue 12/23
11:45 am-10:50 pm
2 stops16h 05m
Washington, D.C. Reagan-National
Wed 12/31
7:00 am-6:50 am
1 stop18h 50m
LondonWashington, D.C.
LHR - DCA
LHRDCA
London Heathrow
Mon 12/15
11:45 am-10:57 pm
2 stops16h 12m
Washington, D.C. Reagan-National
Wed 12/24
12:32 pm-7:50 am
2 stops14h 18m
LondonWashington, D.C.
LHR - IAD
LHRIAD
London Heathrow
Wed 11/19
12:15 pm-6:30 pm
1 stop11h 15m
Washington, D.C. Dulles Intl
Sat 12/13
7:40 pm-10:50 am
1 stop10h 10m
LondonWashington, D.C.
LHR - IAD
LHRIAD
London Heathrow
Mon 11/17
8:35 pm-6:30 pm
1 stop26h 55m
Washington, D.C. Dulles Intl
Wed 12/17
7:40 pm-7:30 pm
1 stop18h 50m
LondonWashington, D.C.
LHR - IAD
LHRIAD
London Heathrow
Thu 3/19
6:00 am-4:15 pm
1 stop14h 15m
Washington, D.C. Dulles Intl
Wed 4/1
10:35 pm-10:00 pm
1 stop18h 25m
LondonWashington, D.C.
LHR - DCA
LHRDCA
London Heathrow
Sun 12/14
1:05 pm-7:46 pm
1 stop11h 41m
Washington, D.C. Reagan-National
Tue 9/15
5:00 pm-8:00 am
1 stop10h 00m
LondonWashington, D.C.
LHR - IAD
LHRIAD
London Heathrow
Thu 3/19
7:05 am-6:15 pm
2 stops15h 10m
Washington, D.C. Dulles Intl
Wed 4/1
8:20 pm-5:40 pm
1 stop16h 20m
Currently, January is the cheapest month in which you can book a flight from London Heathrow Airport to District of Columbia (average of $465). Flying from London Heathrow Airport to District of Columbia in July is currently the most expensive (average of $684). 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.
Unlike at noon, when flights are generally more expensive, you can save up to 37% on flights from London Heathrow Airport to District of Columbia by exploring options for tickets in the evening.
Travelers seeking maximum savings on their London Heathrow Airport to District of Columbia flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from LHR to USDC are scheduled on a Sunday (30 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (19 on average).
Boarding
Entertainment
Comfort
Overall
Crew
Food
Reviews
Jim,Nov 2025
AVL - ATL
Boarding
Entertainment
Comfort
Overall
Crew
Food
Reviews
Jim,Nov 2025
AVL - ATL
Boarding
Entertainment
Comfort
Overall
Crew
Food
Reviews
Jim,Nov 2025
AVL - ATL
Boarding
Entertainment
Comfort
Overall
Crew
Food
Reviews
Jim,Nov 2025
AVL - ATL
Boarding
Entertainment
Comfort
Overall
Crew
Food
Reviews
Jim,Nov 2025
AVL - ATL
Boarding
Entertainment
Comfort
Overall
Crew
Food
Reviews
Jim,Nov 2025
AVL - ATL
| Airline | Cheapest | Average | Flexibility | On-time | 
|---|---|---|---|---|
| Cheapest$320 | Average$968 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$390 | Average$833 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$431 | Average$858 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$473 | Average$714 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$510 | Average$701 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$562 | Average$738 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$567 | Average$822 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$594 | Average$837 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$635 | Average$663 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$649 | Average$873 | FlexibilityNo cancel fee | On-time76% |