United Airlines
Every day
starting at $560
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from London to Washington. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
A non-stop flight is the most convenient and comfortable way to fly from London to Washington, despite the fact that sometimes flights with transfers can cost significantly less.
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Answers to questions about the route that travelers are most interested in.
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
In different months, ticket prices from London to Washington vary: minimum — $416 (September 2026), maximum — $696 (January 2027). Typically, the flight costs $469–$485.
Flight costs for London — Washington fluctuate noticeably — prices go up and down. There's no clear trend, but we've analyzed the data and found some benchmarks.
Despite the fluctuations, patterns exist: the cheapest period is November 2026–December 2026 — averaging $422. The most expensive is January 2027–March 2027 ($589). The difference reaches 28%.
With this kind of price behavior, it's worth comparing prices across several months and booking when a good deal appears. A good benchmark is November 2026–December 2026, where you can save up to 28%.
Price spread on this route is 20.2%. Costs vary significantly, so your choice of month can noticeably affect your travel budget.
United Airlines
Every day
starting at $560
The only airline operating direct flights from London to Washington is United Airlines. Flights operate every day.
London — Washington
09/21/2026
Departure
Direct flight
BA293
starting at $1,244
London — Washington
10/11/2026
Departure
Direct flight
AF9651
starting at $1,037
London — Washington
09/07/2026
Departure
Direct flight
AY5417
starting at $3,159
London — Washington
09/09/2026
Departure
Direct flight
UA919
starting at $1,510
London — Washington
09/10/2026
Departure
Direct flight
BA293
starting at $1,629
London — Washington
09/11/2026
Departure
Direct flight
VS21
starting at $1,029
London — Washington
09/14/2026
Departure
Direct flight
BA6968
starting at $1,391
London — Washington
09/15/2026
Departure
Direct flight
VS21
starting at $1,146
London — Washington
09/16/2026
Departure
Direct flight
VS21
starting at $956
London — Washington
09/18/2026
Departure
Direct flight
BA293
starting at $622
starting at $426
starting at $1,037
starting at $3,159
starting at $762
starting at $956
starting at $418
starting at $434
starting at $439
starting at $442
starting at $466
starting at $476
starting at $482
The route London — Washington is served by many carriers — 12 in total, including British Airways, Air France, Finnair, United Airlines, Virgin Atlantic, Icelandair, EasyJet, Ryanair, Skyview Airways Company Limiteddba Skyview, Wizz Air, Aer Lingus, and Air Transat. This gives passengers wide opportunities: from finding the lowest fare (from $418) to selecting flights by schedule or service class. Our service aggregates data from multiple booking systems so you can compare offers in one place. This saves time and money: no need to check dozens of sites — just pick the right option and book online.
The cheapest flight ticket from London to Washington according to data for the last 48 hours costs $418
Often the best time to buy tickets from London to Washington is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from London to Washington can be found flying in these months: September, November, December.
The fastest flights from London to Washington start from 11 hours 15 minutes in the air.
The following airlines operate direct flights on the route London — Washington: British Airways, Air France, Finnair
The cheapest one-way flight from London to Washington departs on 11/23/2026, is operated by Icelandair and costs $418
The cheapest roundtrip flight from London to Washington departs on 05/20/2027, is operated by Icelandair and costs $435
Fastest flight from London to Washington takes 11h 15m
There are direct flights on this route 7 days a week: Su, Mo, Tu, We, Th, Fr, and Sa
The distance between London and Washington is 5898km (3657 miles). There are 63 direct flights from London to Washington. The time difference between London and Washington is 5h. Flights from London begin at 12:15 PM. The latest flight from London departs at 5:55 PM
We couldn't find any special offers for flights from London to Washington
