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Cheap flights from London Luton Airport to Washington from £295

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 26/8. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — SEA
11 Aug — 18 Aug1
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 12 July 2026.

Mon 12/1020:35
LTN
-
SEA
2 stops27h 05m
Multiple Airlines
Tue 20/1018:05
SEA
-
LTN
2 stops17h 50m
Multiple Airlines
Deal found 7/7£492
Thu 27/807:00
LTN
-
SEA
2 stops17h 00m
Multiple Airlines
Wed 9/917:40
SEA
-
LTN
2 stops18h 15m
Multiple Airlines
Deal found 8/7£549
Fri 11/918:15
LTN
-
SEA
3 stops34h 49m
Multiple Airlines
Mon 21/919:00
SEA
-
LTN
2 stops19h 05m
Multiple Airlines
Deal found 12/7£554
Wed 2/905:40
LTN
-
SEA
2 stops18h 00m
Multiple Airlines
Wed 16/917:40
SEA
-
LTN
2 stops21h 00m
Multiple Airlines
Deal found 7/7£563
Mon 5/1008:15
LTN
-
SEA
2 stops17h 40m
Multiple Airlines
Fri 16/1015:40
SEA
-
LTN
2 stops17h 45m
Multiple Airlines
Deal found 9/7£577
Fri 4/918:15
LTN
-
SEA
3 stops34h 45m
Multiple Airlines
Sat 19/915:40
SEA
-
LTN
2 stops21h 20m
Multiple Airlines
Deal found 11/7£592
Thu 3/921:40
LTN
-
PDX
3 stops43h 51m
Multiple Airlines
Wed 16/915:30
PDX
-
LTN
2 stops21h 45m
Multiple Airlines
Deal found 12/7£693
Thu 17/920:20
LTN
-
PDX
3 stops45h 11m
Multiple Airlines
Thu 1/1015:30
PDX
-
LTN
2 stops22h 40m
Multiple Airlines
Deal found 11/7£708
Fri 16/1006:05
LTN
-
PDX
3 stops35h 26m
Multiple Airlines
Mon 26/1015:45
PDX
-
LTN
2 stops23h 05m
Multiple Airlines
Deal found 9/7£709
Fri 11/906:05
LTN
-
PDX
3 stops35h 26m
Multiple Airlines
Tue 22/910:10
PDX
-
LTN
2 stops19h 15m
Multiple Airlines
Deal found 11/7£733
Sun 13/906:25
LTN
-
PDX
1 stop19h 30m
Multiple Airlines
Mon 12/1015:30
PDX
-
LTN
2 stops23h 20m
Multiple Airlines
Deal found 9/7£747
Thu 27/809:25
LTN
-
PDX
3 stops32h 06m
Multiple Airlines
Thu 10/915:30
PDX
-
LTN
2 stops18h 55m
Multiple Airlines
Deal found 8/7£770

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 12 July 2026.

Round-trip from

£492

One-way from

£295

Popular in

December

Cheapest in

February

Average price

£628
12/10-20/10
  • 12/10-20/10
  • 4 total stops
  • 44h 55m total
  • London to Washington
Search Deals
26/8
  • 26/8
  • 3 total stops
  • 35h 16m total
  • London to Washington
Search Deals
High demand for flights, 0% 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 July 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 12 July 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

Mon 12/10

20:35-15:40

2 stops27h 05m

Seattle/Tacoma Intl

Tue 20/10

18:05-19:55

2 stops17h 50m

£492

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Thu 27/8

07:00-16:00

2 stops17h 00m

Seattle/Tacoma Intl

Wed 9/9

17:40-19:55

2 stops18h 15m

£549

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 2/9

05:40-15:40

2 stops18h 00m

Seattle/Tacoma Intl

Wed 16/9

17:40-22:40

2 stops21h 00m

£563

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Thu 13/8

09:25-17:10

1 stop15h 45m

Seattle/Tacoma Intl

Thu 20/8

19:10-23:25

1 stop20h 15m

£641

LondonPortland

LTN - PDX

LTNPDX

London Luton

Thu 3/9

21:40-09:31

3 stops43h 51m

Portland

Wed 16/9

15:30-21:15

2 stops21h 45m

£693

LondonPortland

LTN - PDX

LTNPDX

London Luton

Thu 17/9

20:20-09:31

3 stops45h 11m

Portland

Thu 1/10

15:30-22:10

2 stops22h 40m

£708

LondonPortland

LTN - PDX

LTNPDX

London Luton

Fri 11/9

06:05-09:31

3 stops35h 26m

Portland

Tue 22/9

10:10-13:25

2 stops19h 15m

£733

LondonPortland

LTN - PDX

LTNPDX

London Luton

Sun 13/9

06:25-17:55

1 stop19h 30m

Portland

Mon 12/10

15:30-22:50

2 stops23h 20m

£747

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 9/9

06:10-18:45

2 stops20h 35m

Seattle/Tacoma Intl

Wed 23/9

19:00-22:15

2 stops19h 15m

£757
Fastest return journey

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Sat 5/9

08:00-17:55

2 stops17h 55m

Seattle/Tacoma Intl

Mon 7/9

19:00-17:10

2 stops14h 10m

£766

Flights are sorted by cheapest return flights first.

Deals found on 7/7

Showing 1-10 of 37 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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