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Cheap flights from London Luton Airport to Washington from £404

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — SEA
3 Dec — 10 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Luton to Washington

Enter your travel dates to find the best prices.

Cheapest flights from Luton to Washington
Explore the most affordable flight options available from Luton to Washington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 November 2025.

Wed 26/1120:50LTN - SEA
2 stops26h 50mMultiple Airlines
Tue 2/1215:10SEA - LTN
2 stops18h 40mMultiple Airlines
Deal found 2/11£610
Wed 24/1206:50LTN - SEA
2 stops18h 10mMultiple Airlines
Tue 6/114:35SEA - LTN
2 stops21h 30mMultiple Airlines
Deal found 2/11£623
Tue 23/1209:00LTN - SEA
2 stops16h 00mMultiple Airlines
Tue 6/114:35SEA - LTN
2 stops21h 30mMultiple Airlines
Deal found 2/11£629
Wed 26/1120:50LTN - SEA
2 stops26h 50mMultiple Airlines
Sun 7/1215:10SEA - LTN
2 stops22h 45mMultiple Airlines
Deal found 2/11£640
Wed 26/1120:50LTN - SEA
2 stops26h 50mMultiple Airlines
Mon 1/1214:35SEA - LTN
2 stops17h 35mMultiple Airlines
Deal found 2/11£648
Fri 5/1209:00LTN - SEA
2 stops16h 00mMultiple Airlines
Sun 7/1214:35SEA - LTN
2 stops18h 25mMultiple Airlines
Deal found 1/11£668
Sun 2/1118:00LTN - SEA
2 stops29h 40mMultiple Airlines
Sat 8/1117:40SEA - LTN
2 stops20h 35mMultiple Airlines
Deal found 1/11£681
Thu 6/1106:00LTN - SEA
1 stop19h 00mMultiple Airlines
Mon 10/1114:35SEA - LTN
1 stop15h 25mMultiple Airlines
Deal found 1/11£682
Tue 2/1207:10LTN - SEA
2 stops17h 50mMultiple Airlines
Tue 9/1214:35SEA - LTN
2 stops19h 15mMultiple Airlines
Deal found 2/11£727
Sat 29/1106:00LTN - SEA
2 stops24h 16mMultiple Airlines
Sat 6/1208:10SEA - LTN
2 stops26h 05mMultiple Airlines
Deal found 1/11£731
Wed 12/1108:00LTN - SEA
1 stop17h 00mMultiple Airlines
Mon 17/1114:35SEA - LTN
2 stops33h 40mMultiple Airlines
Deal found 2/11£732
Mon 17/1108:00LTN - PDX
1 stop17h 00mMultiple Airlines
Mon 1/1214:45PDX - LTN
2 stops15h 25mMultiple Airlines
Deal found 2/11£736

Cheap flight deals from Luton to Washington

Keep the following information in mind while searching for Luton to Washington flight deals. Data was last updated 3 November 2025.

Round-trip from

£471

One-way from

£404

Popular in

July

Cheapest in

January

Average price

£544
16/1-20/1
  • 16/1-20/1
  • 4 total stops
  • 40h 40m total
  • London to Washington
Search Deals
5/12
  • 5/12
  • 3 total stops
  • 55h 56m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£59 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Luton to Washington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 3 November 2025.
Use the filters below to find and compare flights from London Luton Airport to Washington that are best for you.

Fly from

Luton

Fly to

Washington

Route

Depart

Return

Price

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Thu 19/2

09:00-17:00

2 stops16h 00m

Seattle/Tacoma Intl

Tue 3/3

14:35-20:05

2 stops21h 30m

£509

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Sun 15/2

06:00-17:00

1 stop19h 00m

Seattle/Tacoma Intl

Sun 22/2

14:35-14:50

1 stop16h 15m

£513

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 24/12

06:50-17:00

2 stops18h 10m

Seattle/Tacoma Intl

Tue 6/1

14:35-20:05

2 stops21h 30m

£623

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 23/12

09:00-17:00

2 stops16h 00m

Seattle/Tacoma Intl

Tue 6/1

14:35-20:05

2 stops21h 30m

£629

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 26/11

20:50-15:40

2 stops26h 50m

Seattle/Tacoma Intl

Sun 7/12

15:10-21:55

2 stops22h 45m

£640

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Fri 5/12

09:00-17:00

2 stops16h 00m

Seattle/Tacoma Intl

Sun 7/12

14:35-17:00

2 stops18h 25m

£668

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Mon 30/3

06:45-23:08

3 stops24h 23m

Seattle/Tacoma Intl

Wed 1/4

19:00-16:45

2 stops13h 45m

£673

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Sat 29/11

06:00-22:16

2 stops24h 16m

Seattle/Tacoma Intl

Sat 6/12

08:10-18:15

2 stops26h 05m

£731

LondonPortland

LTN - PDX

LTNPDX

London Luton

Mon 17/11

08:00-17:00

1 stop17h 00m

Portland

Mon 1/12

14:45-14:10

2 stops15h 25m

£736

LondonPortland

LTN - PDX

LTNPDX

London Luton

Fri 14/11

09:15-09:15

3 stops32h 00m

Portland

Mon 17/11

14:45-21:50

2 stops23h 05m

£743

Flights are sorted by cheapest return flights first.

Deals found on 1/11

Showing 1-10 of 36 results
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Best time to book a flight from Luton to Washington

Have a flexible travel schedule? Discover the best time to fly to Washington from Luton with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Luton Airport to Washington
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Luton to Washington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Luton 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 Luton to Washington

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