Cheap flights from London Stansted Airport to Washington from £384

STN — SEA
6 Dec — 13 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Stansted to Washington

Enter your travel dates to find the best prices.

Cheapest flights from Stansted to Washington

Thu 3/1206:45 -
2 stops18h 15m
Wed 9/1214:35 -
2 stops19h 15m
Deal found 1/11£517
Wed 25/1108:40 -
2 stops16h 20m
Fri 4/1214:35 -
2 stops23h 45m
Deal found 4/11£518
Wed 25/1107:15 -
2 stops17h 45m
Sun 29/1114:35 -
2 stops23h 35m
Deal found 4/11£528
Wed 2/1208:15 -
2 stops16h 45m
Wed 9/1214:35 -
2 stops25h 10m
Deal found 2/11£543
Tue 15/1217:00 -
2 stops27h 00m
Thu 31/1210:10 -
3 stops24h 00m
Deal found 1/11£573
Mon 23/1117:30 -
2 stops31h 30m
Sun 6/1214:35 -
2 stops17h 05m
Deal found 4/11£586
Sat 5/1207:55 -
2 stops17h 05m
Mon 7/1214:35 -
2 stops16h 30m
Deal found 1/11£592
Thu 24/1206:45 -
2 stops18h 15m
Thu 7/114:35 -
2 stops24h 40m
Deal found 1/11£618

Find flight deals from Stansted to Washington

Round-trip from

£468

One-way from

£384

Popular in

August

Cheapest in

February

Average price

£496
29/1-7/2
  • 29/1-7/2
  • 4 total stops
  • 41h 45m total
  • London to Washington
10/12-31/12
  • 10/12-31/12
  • 2 total stops
  • 34h 03m total
  • London to Washington
Highest demand for flights based on searches. 8% potential increase in price (£37 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Average for round-trip flights in November 2026

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from London Stansted Airport to Washington that are best for you.

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Cheapest return flight

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Tue 5/1

17:20-16:03

2 stops54h 43m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£744

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Thu 26/11

17:20-23:20

2 stops38h 00m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£744

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Thu 10/12

10:55-16:18

2 stops37h 23m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£746

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Wed 25/11

10:55-16:19

2 stops37h 24m

Seattle/Tacoma Intl

Sun 29/11

19:05-16:20

1 stop37h 15m

£753

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Sun 6/12

17:20-22:43

2 stops37h 23m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£757

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Fri 5/3

17:20-23:21

2 stops38h 01m

Seattle/Tacoma Intl

Sun 14/3

20:05-16:20

1 stop37h 15m

£763

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Wed 25/11

10:55-17:10

1 stop38h 15m

Seattle/Tacoma Intl

Wed 2/12

19:05-09:55

1 stop30h 50m

£772

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Tue 12/1

17:20-19:38

2 stops34h 18m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£773

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Tue 1/12

17:20-17:10

1 stop31h 50m

Seattle/Tacoma Intl

Mon 7/12

19:05-09:55

1 stop30h 50m

£773
Fastest return journey

LondonSeattle

STN London Stansted - SEA Seattle/Tacoma Intl

STNSEA

London Stansted

Tue 26/1

17:20-17:10

1 stop31h 50m

Seattle/Tacoma Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£775

Flights are sorted by cheapest return flights first.

Deals found on 1/11

Showing 1-10 of 18 resultsSorted by cheapest first
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Best time to book a flight from Stansted to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Stansted with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from London Stansted Airport to Washington

No data available for this route at this time. Please check back soon.

Related info for your journey

  • How long is the flight from London Stansted Airport to State of Washington?

    Airlines like Turkish Airlines fly from London Stansted Airport to State of Washington in about 37h 24m. The time it takes to get you to your destination can typically vary by up to . London Stansted Airport and State of Washington are separated by a distance of 4778 mi.

  • Can I find deals for flights from Stansted to Washington that include hotel bookings?

    Yes. In addition to deals on Stansted to Washington flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Stansted to Washington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Stansted to Washington.

  • Can I find deals for business class flights from Stansted to Washington?

    Yes. Cheapflights offers flight deals from Stansted to Washington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Alternative routes for Stansted to Washington

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