United AirlinesDepart21:05
Sun, Nov 8YXU → DCA
3h 39m · 2 stops
$778one way, per person
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- Cheapest fare
- $778
- Cheapest month
- November
- Direct flights
- Not recently
- Quickest trip
- 3h 39m
United Airlines · Sun, Nov 8
from $778
Usually 1+ stop
580 km
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Cheapest month to fly from London to Washington
Lowest one-way fare per person in each month. Choose a month to see every date.
Cheapest dates in November 2026
The lowest fares we've seen for each day, cheapest first.
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Getting around
About flights from London to Washington
London (YXU) and Washington (WAS) are about 580 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 3h 39m. Over the next few months, one-way fares start from $778, and November 2026 is currently the cheapest month to fly.
These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.
Frequently asked questions
How much is a flight from London to Washington?
The cheapest one-way fare we've seen recently is $778 with United Airlines, departing Sunday, November 8, 2026.
What is the cheapest month to fly from London to Washington?
November 2026 currently has the lowest fares, from $778 one way.
Are there direct flights from London to Washington?
We haven't seen direct fares recently, so most journeys include at least one stop.
How long is the flight from London to Washington?
The quickest journey we've seen takes about 3h 39m. London and Washington are around 580 km apart.
Which airlines fly from London to Washington?
Recent fares on this route were with United Airlines.
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