
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $724 (Gotogate) |
One-way from | $260 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $880 |
Good round-trip deal | $979 or less |
Good one-way deal | $494 or less |
Fly from
Fly to
Route
Depart
Return
BaltimoreLondon
BWI - LGW
BWILGW
Baltimore/Washington
Tue 9/1
8:30 pm-2:40 pm
1 stop13h 10m
London Gatwick
Fri 9/11
3:40 pm-7:25 pm
1 stop32h 45m
Washington, D.C.London
DCA - STN
DCASTN
Washington, D.C. Reagan-National
Wed 5/27
11:00 am-11:35 am
3 stops19h 35m
London Stansted
Wed 6/10
6:30 am-12:01 pm
3 stops34h 31m
Washington, D.C.London
IAD - LHR
IADLHR
Washington, D.C. Dulles Intl
Tue 9/1
10:55 pm-11:20 am
Nonstop7h 25m
London Heathrow
Thu 9/10
8:40 am-3:35 pm
1 stop11h 55m
Washington, D.C.London
IAD - LHR
IADLHR
Washington, D.C. Dulles Intl
Wed 9/9
10:55 pm-11:20 am
Nonstop7h 25m
London Heathrow
Wed 9/23
8:40 am-3:35 pm
1 stop11h 55m
Washington, D.C.London
IAD - LTN
IADLTN
Washington, D.C. Dulles Intl
Wed 9/30
8:20 pm-12:30 am
2 stops23h 10m
London Luton
Sun 10/11
8:00 am-7:00 pm
2 stops16h 00m
Washington, D.C.London
IAD - LHR
IADLHR
Washington, D.C. Dulles Intl
Tue 9/15
6:35 pm-6:55 am
Nonstop7h 20m
London Heathrow
Mon 10/5
5:50 pm-2:15 pm
1 stop25h 25m
Washington, D.C.London
DCA - STN
DCASTN
Washington, D.C. Reagan-National
Fri 6/5
6:55 pm-7:40 pm
2 stops19h 45m
London Stansted
Mon 6/15
10:00 pm-7:58 pm
2 stops26h 58m
Washington, D.C.London
IAD - LGW
IADLGW
Washington, D.C. Dulles Intl
Tue 9/29
1:00 pm-4:00 pm
2 stops22h 00m
London Gatwick
Tue 10/6
5:00 pm-11:52 am
2 stops23h 52m
BaltimoreLondon
BWI - LGW
BWILGW
Baltimore/Washington
Tue 8/18
1:45 pm-9:25 am
2 stops14h 40m
London Gatwick
Wed 8/26
10:25 am-11:29 pm
2 stops18h 04m
Washington, D.C.London
IAD - LCY
IADLCY
Washington, D.C. Dulles Intl
Wed 10/7
6:10 pm-8:50 am
1 stop9h 40m
London City
Wed 10/14
10:00 am-3:35 pm
1 stop10h 35m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars |
The best time to book flights from Washington, D.C. to London is 72 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, October is the cheapest month in which you can book a flight from Washington, D.C. to London (average of $619). Flying from Washington, D.C. to London in June is currently the most expensive (average of $1,169). 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.
A simple way to save on the total cost of your ticket is to fly from Washington, D.C. to London in the morning. If you’re flexible enough to do this you can expect to save up to 50% on your trip compared to booking a flight at noon.
The most flights from WAS to LON are scheduled on a Monday (28 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (24 on average).
New York (JFK) – chosen by Cheapflights users on 51% of 1-stop itineraries from Washington, D.C. to London on Cheapflights.
Reykjavik (KEF) is the most affordable 1-stop option, with an average round-trip price of $545.
Flights via Newark (EWR) have the shortest average one-way travel time for 1-stop routes: 9h 35m.
Flights via Zurich (ZRH) offer the fastest connection on this route, with an average layover time of 1h 23m.
About 19% of weekly flights between Washington, D.C. and London have experienced delays in the past year, with the average delay time being 170 minutes.
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
Monday tends to have the lowest number of delays on this route, whereas Friday 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 15% of flights being delayed.
Food
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Crew
Boarding
Comfort
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Reviews
Dynasty,May 2026
LAX - EWR
Food
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Crew
Boarding
Comfort
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Reviews
Dynasty,May 2026
LAX - EWR
Food
Overall
Crew
Boarding
Comfort
Entertainment
Reviews
Dynasty,May 2026
LAX - EWR
Food
Overall
Crew
Boarding
Comfort
Entertainment
Reviews
Dynasty,May 2026
LAX - EWR
Food
Overall
Crew
Boarding
Comfort
Entertainment
Reviews
Dynasty,May 2026
LAX - EWR
Food
Overall
Crew
Boarding
Comfort
Entertainment
Reviews
Dynasty,May 2026
LAX - EWR
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$309 | Average$504 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$398 | Average$649 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$462 | Average$898 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$471 | Average$823 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$492 | Average$732 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$497 | Average$809 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$519 | Average$915 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$528 | Average$796 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$561 | Average$801 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$561 | Average$789 | FlexibilityNo cancel fee | On-timeN/A |