Washington to London flight prices by month

In our check on 6 Nov, February had the lowest fares from Washington to London: a typical one-way fare of $285, with the lowest at $247 on 7 Feb. November was the most expensive month, with a typical fare of $372.

Last checked · one way · economy · 1 adult · 200 departure days

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Cheapest month to fly Washington to London

One-way economy fares by departure month, in our check on 6 Nov
MonthTypical fareLowest fareDays checked
November 2026$372$28524
December 2026$369$28531
January 2027$299$28531
February 2027$285$24728
March 2027$285$24731
April 2027$285$24730
May 2027$297$24725

Typical fare: the middle price of all departure days that month.

Cheapest day of the week

Mondays and Tuesdays had the lowest typical fares in our check: $285 and $285 one way. Fridays were the most expensive at $327.

Cheapest dates in our check

What target price should I set?

Try about $299. In our check on 6 Nov, about one in four departure days in the next three months was at or below that price, so it is low but reachable. A target far below the lowest fares we saw may never be reached. More in how to set a realistic target price.

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Questions

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

In our check on 6 Nov, February had the lowest typical one-way economy fare from Washington to London: $285, with the lowest at $247. November was the most expensive at a typical $372.

What is the cheapest day of the week to fly from Washington to London?

Mondays had the lowest typical fare in our check on 6 Nov ($285 one way), and Fridays the highest ($327).

How much is a one-way flight from Washington to London?

In our check on 6 Nov, one-way economy fares for one adult over the next 7 months started at $247 (7 Feb), and the typical fare was $297. Fares change daily, so check the price for your dates.

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How we get these numbers: the lowest one-way economy fare for one adult on each departure day, from Trigger's daily checks with travel data partners. Prices are in US dollars, converted to your currency in the table. Fares change often; confirm the price on the booking site before you pay.