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Cheap flights from London Luton Airport to Washington from £281

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 22/6. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — SEA
26 May — 2 Jun1
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 26 April 2026.

Mon 1/608:15
LTN
-
SEA
1 stop16h 55m
Multiple Airlines
Tue 30/619:10
SEA
-
LTN
1 stop19h 00m
Multiple Airlines
Deal found 24/4£523
Mon 1/608:15
LTN
-
SEA
1 stop16h 55m
Multiple Airlines
Fri 12/619:10
SEA
-
LTN
1 stop21h 20m
Multiple Airlines
Deal found 22/4£524
Mon 8/608:15
LTN
-
SEA
1 stop16h 55m
Multiple Airlines
Mon 15/619:10
SEA
-
LTN
1 stop12h 35m
Multiple Airlines
Deal found 24/4£525
Mon 25/508:15
LTN
-
SEA
1 stop16h 55m
Multiple Airlines
Mon 15/619:10
SEA
-
LTN
1 stop12h 35m
Multiple Airlines
Deal found 22/4£530
Wed 3/606:15
LTN
-
SEA
1 stop18h 55m
Multiple Airlines
Sun 7/619:10
SEA
-
LTN
1 stop18h 30m
Multiple Airlines
Deal found 23/4£533
Tue 19/509:40
LTN
-
SEA
1 stop15h 30m
Multiple Airlines
Sun 24/519:10
SEA
-
LTN
1 stop18h 30m
Multiple Airlines
Deal found 21/4£535
Tue 12/509:40
LTN
-
SEA
2 stops32h 00m
Multiple Airlines
Tue 2/615:40
SEA
-
LTN
3 stops24h 05m
Multiple Airlines
Deal found 21/4£536
Thu 11/609:25
LTN
-
SEA
1 stop15h 45m
Multiple Airlines
Sun 14/619:10
SEA
-
LTN
1 stop18h 30m
Multiple Airlines
Deal found 26/4£538
Fri 8/506:20
LTN
-
SEA
3 stops35h 20m
Multiple Airlines
Tue 12/519:00
SEA
-
LTN
2 stops15h 30m
Multiple Airlines
Deal found 22/4£575
Fri 22/517:10
LTN
-
SEA
3 stops28h 35m
Multiple Airlines
Fri 29/515:55
SEA
-
LTN
3 stops24h 35m
Multiple Airlines
Deal found 23/4£579
Wed 29/406:15
LTN
-
SEA
3 stops35h 25m
Multiple Airlines
Mon 4/515:40
SEA
-
LTN
3 stops24h 15m
Multiple Airlines
Deal found 22/4£586
Fri 5/606:20
LTN
-
SEA
1 stop18h 50m
Multiple Airlines
Fri 12/623:44
SEA
-
LTN
2 stops24h 36m
Multiple Airlines
Deal found 21/4£592

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 26 April 2026.

Round-trip from

£523

One-way from

£281

Popular in

July

Cheapest in

February

Average price

£541
1/6-30/6
  • 1/6-30/6
  • 2 total stops
  • 35h 55m total
  • London to Washington
Search Deals
22/6
  • 22/6
  • 2 total stops
  • 51h 10m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£51 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 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 26 April 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 - SEA

LTNSEA

London Luton

Fri 5/6

06:20-17:10

1 stop18h 50m

Seattle/Tacoma Intl

Fri 12/6

19:10-17:25

1 stop14h 15m

£535

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 12/5

09:40-09:40

2 stops32h 00m

Seattle/Tacoma Intl

Tue 2/6

15:40-23:45

3 stops24h 05m

£536

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Fri 22/5

06:20-09:40

2 stops35h 20m

Seattle/Tacoma Intl

Tue 26/5

15:40-23:45

3 stops24h 05m

£596

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Mon 1/6

08:15-17:10

1 stop16h 55m

Seattle/Tacoma Intl

Tue 16/6

19:10-22:10

1 stop19h 00m

£629

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 17/6

06:15-21:08

2 stops22h 53m

Seattle/Tacoma Intl

Wed 24/6

15:40-18:25

3 stops18h 45m

£704

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Mon 11/5

09:15-17:45

1 stop16h 30m

Seattle/Tacoma Intl

Wed 20/5

17:30-21:05

1 stop19h 35m

£720

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 6/5

19:05-21:08

2 stops34h 03m

Seattle/Tacoma Intl

Tue 12/5

19:00-22:10

3 stops19h 10m

£734

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 28/7

09:40-21:00

3 stops43h 20m

Seattle/Tacoma Intl

Sun 30/8

19:00-22:20

2 stops19h 20m

£759
Fastest return journey

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 19/5

09:40-18:45

2 stops17h 05m

Seattle/Tacoma Intl

Sun 24/5

19:00-17:10

2 stops14h 10m

£771

LondonPortland

LTN - PDX

LTNPDX

London Luton

Sun 10/5

09:00-09:30

3 stops32h 30m

Portland

Tue 19/5

14:30-15:30

2 stops17h 00m

£774

Flights are sorted by cheapest return flights first.

Deals found on 26/4

Showing 1-10 of 42 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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