Round trip from
$636
20 Dec – 24 Dec · Icelandair · 1 stop
found 4 days ago
Direct flights from
$895
20 Dec – 24 Dec · Air France
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5898 km
Distance
-
8 h 20 min
Shortest flight
-
12
Airlines
-
$268
One way from
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$636
Round trip from
The route at a glance
About 5898 km separate Washington and London; the quickest flight is 8 h 20 min and a typical one 9 h.
None of the cheapest tickets found were direct; Icelandair carries 80% of them.
Most cheap flights leave from Washington Dulles International Airport (36 km from the centre of Washington).
Most land at London Heathrow Airport (23 km from the centre of London).
A one-way ticket starts at $268, a round trip at $636.
Cheapest price by month
| Month | Round trip from |
|---|---|
| November 2026 | $615 |
| December 2026 | $636 |
| January 2027 | $564 |
| February 2027 | $725 |
| March 2027 | $776 |
Cheapest day to fly
Looking two months ahead, 14 November is the cheapest date to leave, at $268.
Tuesday is the cheapest day of the week to fly.
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| 5 $364 |
6 $383 |
7 $343 |
8 $343 |
|||
| 9 $343 |
10 $304 |
11 $302 |
12 $285 |
13 $285 |
14 $268 |
15 $365 |
| 16 $365 |
17 $365 |
18 $365 |
19 $461 |
20 $436 |
21 $374 |
22 $323 |
| 23 $271 |
24 $307 |
Cheaper More expensive
- $268 — Saturday, Nov. 14, 2026
- $271 — Monday, Nov. 23, 2026
- $285 — Thursday, Nov. 12, 2026
- $285 — Friday, Nov. 13, 2026
- $302 — Wednesday, Nov. 11, 2026
- $304 — Tuesday, Nov. 10, 2026
- $307 — Tuesday, Nov. 24, 2026
- $323 — Sunday, Nov. 22, 2026
- $343 — Saturday, Nov. 7, 2026
- $343 — Sunday, Nov. 8, 2026
- $343 — Monday, Nov. 9, 2026
- $364 — Thursday, Nov. 5, 2026
- $365 — Sunday, Nov. 15, 2026
- $365 — Monday, Nov. 16, 2026
- $365 — Tuesday, Nov. 17, 2026
- $365 — Wednesday, Nov. 18, 2026
- $374 — Saturday, Nov. 21, 2026
- $383 — Friday, Nov. 6, 2026
- $436 — Friday, Nov. 20, 2026
- $461 — Thursday, Nov. 19, 2026
Price trend, last 30 days
Prices over the past month ranged from $489 to $712, with $593 the usual level.
Today's price is 7% above that average; waiting may pay off.
- 6 October — $591
- 11 October — $489
- 16 October — $712
- 21 October — $564
- 26 October — $564
- 31 October — $636
Trip length and timing
The cheapest tickets are for stays of about 6 nights (the very cheapest: 4 nights), booked around 111 days ahead.
Airlines on this route
Airports used
Trip essentials
Car rental in London
Pick up a car at the airport.
Mobile data in London
An eSIM with local data, set up before you land.
by Airalo
Airport transfer in London
A fixed-price ride from the airport, booked ahead.
by Kiwitaxi
Flight delayed or cancelled?
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by AirHelp
Flight deals from Washington in Telegram
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Questions and answers
- What is the cheapest price for flights from Washington to London?
- The cheapest round-trip ticket found recently costs $636.
- Which month is the cheapest to fly from Washington to London?
- January 2027 is currently the cheapest month, with tickets from $564.
- Are there direct flights from Washington to London?
- Yes. Direct flights were found from $895.
- Which airlines fly from Washington to London?
- Airlines found on this route: American Airlines, Air Canada, Air France, ITA Airways, jetBlue, British Airways, Aer Lingus, Frontier Airlines, Icelandair, Iberia, KLM, Lufthansa.
- How far is London from Washington?
- The distance is about 5898 km. A direct flight takes about 7 h 25 min.
- How long is the flight from Washington to London?
- The shortest flight takes 8 h 20 min; most take about 9 h.
- Which airports do flights from Washington to London use?
- Most depart from Washington Dulles International Airport and arrive at London Heathrow Airport.
- What is the cheapest day of the week to fly from Washington to London?
- In the next two months, Tuesday departures are the cheapest; the single cheapest day is 14 November at $268.