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Cheap flights from London Luton Airport to Washington from £392

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 15/12. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — SEA
9 Sep — 16 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap 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 10 August 2026.

Wed 14/1021:50 -
2 stops26h 10m
Wed 21/1017:40 -
2 stops19h 25m
Deal found 6/8£463
Thu 15/1005:40 -
2 stops18h 20m
Wed 21/1017:40 -
2 stops21h 00m
Deal found 8/8£485
Wed 30/921:50 -
2 stops26h 10m
Wed 21/1017:40 -
2 stops19h 25m
Deal found 7/8£493
Mon 28/914:25 -
3 stops31h 20m
Tue 6/1015:55 -
2 stops22h 15m
Deal found 9/8£506
Sat 19/914:25 -
2 stops31h 20m
Sat 26/915:55 -
3 stops22h 00m
Deal found 5/8£548
Thu 15/1017:30 -
2 stops30h 30m
Fri 23/1018:00 -
2 stops21h 50m
Deal found 6/8£552
Fri 4/917:10 -
3 stops28h 35m
Fri 11/915:55 -
3 stops24h 35m
Deal found 5/8£556
Thu 3/915:50 -
2 stops29h 55m
Sun 13/915:55 -
3 stops21h 45m
Deal found 8/8£589
Mon 14/906:05 -
3 stops35h 26m
Mon 28/915:30 -
2 stops23h 20m
Deal found 5/8£655
Wed 23/906:10 -
3 stops35h 21m
Wed 14/1015:30 -
2 stops21h 45m
Deal found 8/8£656
Mon 7/906:00 -
3 stops35h 31m
Thu 29/1015:45 -
2 stops20h 20m
Deal found 7/8£688
Wed 26/819:20 -
2 stops24h 30m
Thu 10/915:30 -
2 stops20h 00m
Deal found 5/8£693

Find flight deals from Luton to Washington

Keep the following information in mind while searching for Luton to Washington flight deals. Data was last updated 10 August 2026.

Round-trip from

£463

One-way from

£392

Popular in

December

Cheapest in

February

Average price

£619
14/10-21/10
  • 14/10-21/10
  • 4 total stops
  • 45h 35m total
  • London to Washington
Search Deals
15/12
  • 15/12
  • 3 total stops
  • 46h 53m total
  • London to Washington
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
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 10 August 2026.
Use the filters below to find and compare flights from London Luton Airport to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Sat 19/9

14:25-13:45

2 stops31h 20m

Seattle/Tacoma Intl

Sat 26/9

15:55-21:55

3 stops22h 00m

£548

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Mon 14/9

14:25-13:45

3 stops31h 20m

Seattle/Tacoma Intl

Fri 18/9

15:55-00:30

3 stops24h 35m

£611

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Wed 16/9

06:10-18:45

2 stops20h 35m

Seattle/Tacoma Intl

Fri 2/10

10:30-18:05

2 stops23h 35m

£616

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Fri 4/9

06:20-17:55

2 stops19h 35m

Seattle/Tacoma Intl

Fri 11/9

15:40-17:25

2 stops17h 45m

£616

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Fri 11/9

06:05-22:47

3 stops24h 42m

Seattle/Tacoma Intl

Sat 26/9

15:40-21:00

2 stops21h 20m

£651

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Tue 1/9

09:40-21:00

2 stops19h 20m

Seattle/Tacoma Intl

Thu 10/9

15:40-23:25

2 stops23h 45m

£668

LondonPortland

LTN London Luton - PDX Portland

LTNPDX

London Luton

Wed 2/9

19:20-11:50

2 stops24h 30m

Portland

Wed 9/9

19:00-22:35

2 stops19h 35m

£707

LondonPortland

LTN London Luton - PDX Portland

LTNPDX

London Luton

Thu 1/10

21:40-09:31

3 stops43h 51m

Portland

Tue 20/10

10:10-22:10

3 stops28h 00m

£708
Fastest return journey

LondonSeattle

LTN London Luton - SEA Seattle/Tacoma Intl

LTNSEA

London Luton

Tue 22/9

09:40-17:10

1 stop15h 30m

Seattle/Tacoma Intl

Thu 8/10

19:10-16:45

1 stop13h 35m

£709

LondonPortland

LTN London Luton - PDX Portland

LTNPDX

London Luton

Wed 11/11

07:45-17:00

2 stops17h 15m

Portland

Thu 26/11

14:45-23:55

2 stops25h 10m

£722

Flights are sorted by cheapest return flights first.

Deals found on 9/8

Showing 1-10 of 44 resultsSorted by cheapest first
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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

See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from Luton to Washington?

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