
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $538 (Austrian Airlines) |
One-way from | $300 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $606 |
Good round-trip deal | $571 or less |
Good one-way deal | $635 or less |
Fly from
Fly to
Route
Depart
Return
Price
LondonWashington, D.C.
LHR - IAD
LHRIAD
London Heathrow
Sat 2/21
6:55 pm-4:40 pm
1 stop26h 45m
Washington, D.C. Dulles Intl
Sat 3/7
5:25 pm-11:15 am
1 stop12h 50m
LondonWashington, D.C.
LHR - IAD
LHRIAD
London Heathrow
Sat 2/21
8:30 am-3:50 pm
1 stop12h 20m
Washington, D.C. Dulles Intl
Sat 3/7
6:20 pm-6:40 am
Nonstop7h 20m
LondonWashington, D.C.
LHR - IAD
LHRIAD
London Heathrow
Sat 2/21
8:30 am-3:50 pm
1 stop12h 20m
Washington, D.C. Dulles Intl
Sun 3/8
7:20 pm-6:40 am
Nonstop7h 20m
LondonWashington, D.C.
LHR - IAD
LHRIAD
London Heathrow
Mon 2/16
8:30 am-3:50 pm
1 stop12h 20m
Washington, D.C. Dulles Intl
Mon 2/23
6:20 pm-6:40 am
Nonstop7h 20m
LondonWashington, D.C.
LHR - IAD
LHRIAD
London Heathrow
Fri 2/13
6:00 am-2:40 pm
1 stop13h 40m
Washington, D.C. Dulles Intl
Fri 2/20
6:00 pm-2:05 pm
1 stop15h 05m
LondonWashington, D.C.
LGW - IAD
LGWIAD
London Gatwick
Fri 3/6
2:00 pm-7:24 am
1 stop22h 24m
Washington, D.C. Dulles Intl
Mon 3/16
2:58 pm-10:00 am
2 stops15h 02m
LondonWashington, D.C.
LHR - IAD
LHRIAD
London Heathrow
Fri 3/6
9:00 am-4:40 pm
1 stop12h 40m
Washington, D.C. Dulles Intl
Tue 3/10
9:30 pm-1:00 pm
1 stop11h 30m
LondonWashington, D.C.
LHR - IAD
LHRIAD
London Heathrow
Wed 3/18
2:50 pm-3:40 pm
1 stop28h 50m
Washington, D.C. Dulles Intl
Tue 3/24
5:26 pm-11:15 am
1 stop13h 49m
LondonWashington, D.C.
LHR - IAD
LHRIAD
London Heathrow
Thu 3/5
9:00 am-4:40 pm
1 stop12h 40m
Washington, D.C. Dulles Intl
Mon 3/9
12:55 pm-7:10 am
2 stops14h 15m
LondonWashington, D.C.
LHR - IAD
LHRIAD
London Heathrow
Mon 2/23
6:00 am-2:40 pm
1 stop13h 40m
Washington, D.C. Dulles Intl
Sun 3/8
11:15 pm-10:50 am
Nonstop7h 35m
Currently, February is the cheapest month in which you can book a flight from United Kingdom to Washington, D.C. Dulles Intl Airport (average of $346). Flying from United Kingdom to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $629). 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.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from United Kingdom to Washington, D.C. Dulles Intl Airport as you normally would.
The most flights from GB0 to IAD are scheduled on a Tuesday (26 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (20 on average).
About 17% of weekly flights between United Kingdom and Washington, D.C. have experienced delays in the past year, with the average delay time being 131 minutes.
Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
Wednesday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Virgin Atlantic have had the lowest number of delays on this route, with just 8% of flights being delayed.
Boarding
Entertainment
Overall
Comfort
Food
Crew
Reviews
Pratap,Aug 2025
JFK - LHR
Boarding
Entertainment
Overall
Comfort
Food
Crew
Reviews
Pratap,Aug 2025
JFK - LHR
Boarding
Entertainment
Overall
Comfort
Food
Crew
Reviews
Pratap,Aug 2025
JFK - LHR
Boarding
Entertainment
Overall
Comfort
Food
Crew
Reviews
Pratap,Aug 2025
JFK - LHR
Boarding
Entertainment
Overall
Comfort
Food
Crew
Reviews
Pratap,Aug 2025
JFK - LHR
Boarding
Entertainment
Overall
Comfort
Food
Crew
Reviews
Pratap,Aug 2025
JFK - LHR
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$271 | Average$883 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$320 | Average$925 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$431 | Average$984 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$466 | Average$836 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$473 | Average$730 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$559 | Average$711 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$562 | Average$772 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$567 | Average$886 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$572 | Average$806 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$635 | Average$663 | FlexibilityNo cancel fee | On-time67% |