Cheap flights from London to Washington D.C. from $0
Compare prices across airlines and find the best deals
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Discover deals on London to Washington D.C. flights
Typical range $0–$0•Cheapest found $0
Checking latest prices...Find cheap flights from London to Washington D.C.
Best
1 stop
8 Feb
DEP
19:55
LHR
1×
15:15
IAD
--
8 Feb
DEPARTURE
19:55 - 15:15
--
LHR
1 stop
IAD
1 stop
8 Feb
DEP
12:25
LHR
1×
21:00
IAD
13h 35m
8 Feb
DEPARTURE
12:25 - 21:00
13h 35m
LHR
1 stop
IAD
TAP Air Portugal flights from London to Washington D.C.
Our best TAP Air Portugal deals on London to Washington D.C. tickets
Best
1 stop
8 Feb
DEP
19:55
LHR
1×
15:15
IAD
--
8 Feb
DEPARTURE
19:55 - 15:15
--
LHR
1 stop
IAD
1 stop
8 Feb
DEP
12:25
LHR
1×
21:00
IAD
13h 35m
8 Feb
DEPARTURE
12:25 - 21:00
13h 35m
LHR
1 stop
IAD
Lufthansa flights from London to Washington D.C.
Our best Lufthansa deals on London to Washington D.C. tickets
Best
1 stop
8 Feb
DEP
07:40
LHR
1×
15:35
IAD
12h 55m
8 Feb
DEPARTURE
07:40 - 15:35
12h 55m
LHR
1 stop
IAD
8 Feb
DEP
12:05
LHR
15:35
IAD
8h 30m
8 Feb
DEPARTURE
12:05 - 15:35
8h 30m
LHR
IAD
Air Canada flights from London to Washington D.C.
Our best Air Canada deals on London to Washington D.C. tickets
Best
1 stop
8 Feb
DEP
12:00
LHR
1×
21:25
IAD
14h 25m
8 Feb
DEPARTURE
12:00 - 21:25
14h 25m
LHR
1 stop
IAD
1 stop
8 Feb
DEP
13:25
LHR
1×
20:54
IAD
12h 29m
8 Feb
DEPARTURE
13:25 - 20:54
12h 29m
LHR
1 stop
IAD
SWISS flights from London to Washington D.C.
Our best SWISS deals on London to Washington D.C. tickets
Best
1 stop
8 Feb
DEP
06:00
LHR
1×
15:30
IAD
14h 30m
8 Feb
DEPARTURE
06:00 - 15:30
14h 30m
LHR
1 stop
IAD
1 stop
8 Feb
DEP
06:00
LHR
1×
16:40
IAD
15h 40m
8 Feb
DEPARTURE
06:00 - 16:40
15h 40m
LHR
1 stop
IAD
Icelandair flights from London to Washington D.C.
Our best Icelandair deals on London to Washington D.C. tickets
Best
1 stop
8 Feb
DEP
20:35
LHR
1×
18:30
IAD
--
8 Feb
DEPARTURE
20:35 - 18:30
--
LHR
1 stop
IAD
1 stop
8 Feb
DEP
12:15
LHR
1×
18:30
IAD
11h 15m
8 Feb
DEPARTURE
12:15 - 18:30
11h 15m
LHR
1 stop
IAD
Brussels Airlines flights from London to Washington D.C.
Our best Brussels Airlines deals on London to Washington D.C. tickets
Best
1 stop
8 Feb
DEP
06:50
LHR
1×
14:35
IAD
12h 45m
8 Feb
DEPARTURE
06:50 - 14:35
12h 45m
LHR
1 stop
IAD
What's the cheapest day of the week to fly from London to Washington D.C.?
If your flying dates are flexible, you should consider flying to Washington D.C. on a Mon, as we generally find the cheapest rates on that day. On the other hand, Wed is the most expensive day to fly.
What is the cheapest month to fly from London to Washington D.C.?
The cheapest month for flights from London to Washington D.C. is Oct, where tickets cost $1020 on average. The most expensive months are Dec.
JanFebMarAprMayJunJulAugSepOctNovDec
$1479$1250$1020
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Everything you should know
Cheapest one-way flight
$1053
Typical prices: $1053–$2106
When to book
3 weeks
in advance to save around 25%
Good to know
💰
Save money
Compare prices across airlines to find the best deal. Prices can vary significantly.
📅
Be flexible
Flying midweek or in off-peak seasons can save you up to 30% on airfare.
⏰
Book early
Booking 3+ weeks in advance typically offers the best prices.
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Frequently asked questions
The cheapest flight from London to Washington D.C. currently costs AUD $1053. Prices typically range from $1053 to $1053. Prices change frequently, so we recommend booking early and being flexible with your travel dates.