Cheap flights from Washington to London

One-way fares from $268 · WAS → LON · prices found by travellers in the last 48 hours

Compare all dates London → Washington
Cheapest fare
$268

Icelandair · Mon, Nov 16

Cheapest month
November

from $268

Direct flights
Not recently

Usually 1+ stop

Quickest trip
8h 26m

5,900 km

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Cheapest month to fly from Washington to London

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 Cheapest $268
  2. December 2026 $412

Cheapest dates in November 2026

The lowest fares we've seen for each day, cheapest first.

TAP Air Portugal
Depart17:25 Sat, Nov 14IAD → STN 12h 00m · 2 stops
$268one way, per person
View deal
Icelandair
Depart19:40 Mon, Nov 16IAD → LHR 9h 05m · 1 stop
$268one way, per person
View deal
Icelandair
Depart19:40 Mon, Nov 23IAD → LHR 9h 00m · 1 stop
$271one way, per person
View deal
jetBlue
Depart06:15 Wed, Nov 11DCA → LHR 8h 26m · 1 stop
$302one way, per person
View deal
jetBlue
Depart15:54 Sun, Nov 15DCA → LHR 8h 55m · 1 stop
$303one way, per person
View deal
jetBlue
Depart15:54 Wed, Nov 4DCA → LHR 8h 55m · 1 stop
$414one way, per person
View deal
Frontier Airlines
Depart20:22 Sat, Nov 21IAD → LHR 14h 01m · 2 stops
$427one way, per person
View deal
Icelandair
Depart19:40 Thu, Nov 19IAD → LTN 12h 35m · 2 stops
$461one way, per person
View deal
See every date in November 2026 →

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About flights from Washington to London

Washington (WAS) and London (LON) are about 5,900 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 8h 26m. Over the next few months, one-way fares start from $268, 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 Washington to London?

The cheapest one-way fare we've seen recently is $268 with Icelandair, departing Monday, November 16, 2026. Over the coming months, the lowest fare in each month ranges from $268 to $412.

What is the cheapest month to fly from Washington to London?

November 2026 currently has the lowest fares, from $268 one way.

Are there direct flights from Washington to London?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from Washington to London?

The quickest journey we've seen takes about 8h 26m. Washington and London are around 5,900 km apart.

Which airlines fly from Washington to London?

Recent fares on this route were with Icelandair, Air Canada, TAP Air Portugal, jetBlue, Frontier Airlines and Porter Airlines Canada.

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