Cheap Flights from Washington D.C., DC to London from $139

On Cheapflightsplus.com you will find 15 direct and 984 connecting flights from Washington D.C. to London. You can compare airfare deals from 26 airlines and multiple travel sites from $139, book and save on cheap plane tickets and last minute offers. Also check out WAS-LON flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Washington D.C. to London Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $139 (one-way), $238 (round-trip).
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Full flight schedule will help you in detecting at what time planes fly from Washington D.C. to London. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
17:50 — 06:20
+1 day
17:50 — 06:20 KL4817 KLM
Washington D.C. — London
7h 30m
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from$309
17:50 — 06:20
+1 day
17:50 — 06:20 AF9652 Air France
Washington D.C. — London
7h 30m
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from$309
17:50 — 06:20
+1 day
17:50 — 06:20 VS22 Virgin Atlantic Airways
Washington D.C. — London
7h 30m
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from$360
17:55 — 06:15
+1 day
17:55 — 06:15 BA216 British Airways
Washington D.C. — London
7h 20m
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from$290
17:55 — 06:15
+1 day
17:55 — 06:15 IB3589 Iberia
Washington D.C. — London
7h 20m
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from$328
18:40 — 06:55
+1 day
18:40 — 06:55 UA918 United Airlines
Washington D.C. — London
7h 15m
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from$307
18:40 — 06:55
+1 day
18:40 — 06:55 LH9259 Lufthansa
Washington D.C. — London
7h 15m
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from$363
18:40 — 06:55
+1 day
18:40 — 06:55 OS7806 Austrian Airlines
Washington D.C. — London
7h 15m
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from$378
19:25 — 07:45
+1 day
19:25 — 07:45 BA290 British Airways
Washington D.C. — London
7h 20m
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from$282
22:25 — 10:40
+1 day
22:25 — 10:40 UA924 United Airlines
Washington D.C. — London
7h 15m
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from$307
22:25 — 10:40
+1 day
22:25 — 10:40 LH9267 Lufthansa
Washington D.C. — London
7h 15m
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from$363
22:25 — 10:40
+1 day
22:25 — 10:40 OS7808 Austrian Airlines
Washington D.C. — London
7h 15m
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from$378
22:40 — 11:05
+1 day
22:40 — 11:05 AY5532 Finnair
Washington D.C. — London
7h 25m
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from$387
22:45 — 11:05
+1 day
22:45 — 11:05 IB3631 Iberia
Washington D.C. — London
7h 20m
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from$280
22:45 — 11:05
+1 day
22:45 — 11:05 BA292 British Airways
Washington D.C. — London
7h 20m
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from$282
13:36 — 10:00
+1 day
13:29 — 15:52 F94811 Frontier Airlines
Washington D.C. — Orlando
4h 30m stop
20:30 — 10:00 Z0784 Z0
Orlando — London
15h 24m
including layover
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from$177
17:00 — 09:45
+1 day
17:00 — 05:20 TP232 TAP Portugal
Washington D.C. — Lisbon
1h 35m stop
07:05 — 09:45 TP1334 TAP Portugal
Lisbon — London
11h 45m
including layover
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from$177
17:50 — 22:55
+1 day
17:00 — 05:20 TP232 TAP Portugal
Washington D.C. — Lisbon
14h stop
20:10 — 22:55 TP1366 TAP Portugal
Lisbon — London
24h 5m
including layover
Find flight
from$157
19:25 — 06:55
+2 days
15:38 — 18:26 F93747 Frontier Airlines
Washington D.C. — Miami
19h 3m stop
17:15 — 06:55 Z0724 Z0
Miami — London
30h 30m
including layover
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from$172
20:30 — 11:45
+1 day
20:30 — 06:25 FI644 Icelandair
Washington D.C. — Reykjavik
1h 10m stop
07:35 — 11:45 FI470 Icelandair
Reykjavik — London
10h 15m
including layover
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from$171
21:58 — 06:55
+2 days
21:57 — 00:37 F93731 Frontier Airlines
Washington D.C. — Miami
16h 30m stop
17:15 — 06:55 Z0724 Z0
Miami — London
27h 57m
including layover
Find flight
from$180
22:35 — 09:45
+2 days
22:20 — 10:40 TP234 TAP Portugal
Washington D.C. — Lisbon
20h stop
07:05 — 09:45 TP1334 TAP Portugal
Lisbon — London
30h 10m
including layover
Find flight
from$162
22:35 — 10:20
+2 days
22:20 — 10:40 TP234 TAP Portugal
Washington D.C. — Lisbon
20h 40m stop
07:35 — 10:20 TP1356 TAP Portugal
Lisbon — London
30h 45m
including layover
Find flight
from$182
23:15 — 11:55
+2 days
23:15 — 09:05 FI648 Icelandair
Washington D.C. — Reykjavik
22h 35m stop
07:40 — 11:55 FI450 Icelandair
Reykjavik — London
31h 40m
including layover
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from$139
23:15 — 11:45
+2 days
23:15 — 09:05 FI648 Icelandair
Washington D.C. — Reykjavik
22h 30m stop
07:35 — 11:45 FI470 Icelandair
Reykjavik — London
31h 30m
including layover
Find flight
from$172
06:10 — 06:55
+1 day
06:10 — 08:08 F94707 Frontier Airlines
Washington D.C. — Atlanta
1h 8m stop
09:21 — 11:28 F94406 Frontier Airlines
Atlanta — Miami
6h 1m stop
17:20 — 07:00 Z0724 Z0
Miami — London
19h 45m
including layover
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from$180
06:10 — 10:00
+1 day
06:10 — 08:07 F94707 Frontier Airlines
Washington D.C. — Atlanta
3h 4m stop
15:39 — 17:33 F93976 Frontier Airlines
Atlanta — Orlando
7h 37m stop
20:40 — 10:10 Z0784 Z0
Orlando — London
22h 50m
including layover
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from$192
11:58 — 20:20
+1 day
11:58 — 12:47 G4355 Allegiant Air
Washington D.C. — Nashville
8h 8m stop
20:55 — 08:40 FI824 Icelandair
Nashville — Reykjavik
7h 30m stop
16:10 — 20:20 FI454 Icelandair
Reykjavik — London
27h 22m
including layover
Find flight
from$205
20:30 — 20:40
+1 day
20:30 — 06:25 FI644 Icelandair
Washington D.C. — Reykjavik
1h 25m stop
07:50 — 14:35 FI562 Icelandair
Reykjavik — Rome
4h 20m stop
18:55 — 20:40 W46003 Aero Services Executive
Rome — London
19h 10m
including layover
Find flight
from$189
*Departure and arrival times - local. Updated on May 24, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Washington D.C. to London depends on and how to choose the most interesting flight option for you.

Distance between Washington D.C. and London is 5899 miles. Time difference between the cities is 5h. Airplanes depart 01:05 to 23:15 from 2 Washington D.C. airports and arrive 01:05 to 23:15 to 10 London airports. Average flight time is 7h 20m.

  • The fastest flight 7h 15m
  • Average flight time 7h 20m
  • The earliest flight 01:05
  • The latest flight 23:15
  • Distance 3666 ml

The cheapest months to travel to London are july (from 186 $), august (from 210 $), january (from 234 $).

The most expensive months are december (from 399 $), february (from 294 $), october (from 293 $).

What is the lowest airfare Washington D.C. to London?

The cheapest plane ticket found by our users is $139. This airfare is for economy class on one-way FI648 flight by Icelandair for July 25, 2025 which leaves Dulles International in Washington D.C. at 23:15 am and arrives at London Heathrow at 11:55.

Economy class
$139
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Business class
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First class
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Popular Airlines on the Route

The flight Washington D.C. — London is served by 26 regular airlines and 6 low-cost airlines. Most of the flights on this route are operated by Icelandair - 229 departures per week at the price of from $ 139 . And the most expensive tickets are offered by Avianca airline - from $ 410.

Direct flights

There are 15 nonstop flights on the route. The fastest direct flight is UA918 by United Airlines takes 7h 15m and the cheapest is FI648 by Icelandair for $280.

  • KL - KLM
    from $309
    Find
  • OS - Austrian Airlines
    from $378
    Find
  • AF - Air France
    from $309
    Find
  • AY - Finnair
    from $387
    Find
  • IB - Iberia
    from $280
    Find
  • UA - United Airlines
    from $307
    Find
  • LH - Lufthansa
    from $363
    Find
  • VS - Virgin Atlantic Airways
    from $360
    Find
  • BA - British Airways
    from $282
    Find
See more direct flights

Connecting Flights

There are 984 flights with layovers on the route. The fastest connecting flight is BA1860 by British Airways takes 9h 18m and the cheapest is FI648 by Icelandair for $139.

  • FI - Icelandair
    from $139
    Find
  • LX - SWISS International Air Lines
    from $289
    Find
  • UA - United Airlines
    from $305
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  • G4 - Allegiant Air
    from $205
    Find
  • SK - SAS
    from $272
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  • IB - Iberia
    from $290
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  • SN - Brussels Airlines
    from $303
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  • WS - WestJet
    from $360
    Find
  • KL - KLM
    from $309
    Find
  • AC - Air Canada
    from $276
    Find
  • OS - Austrian Airlines
    from $298
    Find
  • EI - Aer Lingus
    from $356
    Find
See more connecting flights

Airports

You can fly from Washington D.C. to London from 2 airports (Dulles International, Ronald Reagan).

Washington D.C. airports

  • Dulles International-IAD
    from $139
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  • Ronald Reagan-DCA
    from $276
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London airports

  • London City-LCY
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  • London-Waterloo-QQW
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  • Heathrow-LHR
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  • Luton-LTN
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  • British Rail Terminal-ZLX
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  • London Biggin Hill-BQH
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  • Stansted-STN
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  • Gatwick-LGW
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  • Ebbsfleet International Rail St-XQE
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  • Stratford International Rail St-XOF
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How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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