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Cheap flights from London Luton Airport to Washington from £282

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 17/6. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — SEA
16 Jun — 23 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 17 May 2026.

Tue 1/920:55
LTN
-
SEA
2 stops26h 45m
Multiple Airlines
Thu 10/918:05
SEA
-
LTN
2 stops18h 05m
Multiple Airlines
Deal found 14/5£589
Tue 2/609:15
LTN
-
SEA
3 stops21h 25m
Multiple Airlines
Sun 7/605:45
SEA
-
LTN
3 stops33h 10m
Multiple Airlines
Deal found 13/5£624
Fri 19/606:20
LTN
-
SEA
3 stops35h 20m
Multiple Airlines
Thu 1/1019:00
SEA
-
LTN
2 stops19h 10m
Multiple Airlines
Deal found 13/5£635
Fri 17/705:40
LTN
-
SEA
3 stops36h 00m
Multiple Airlines
Sun 2/815:40
SEA
-
LTN
3 stops20h 50m
Multiple Airlines
Deal found 16/5£639
Tue 2/609:15
LTN
-
SEA
3 stops21h 25m
Multiple Airlines
Tue 9/613:30
SEA
-
LTN
3 stops24h 40m
Multiple Airlines
Deal found 14/5£640
Sun 21/609:00
LTN
-
SEA
3 stops32h 40m
Multiple Airlines
Tue 30/607:00
SEA
-
LTN
3 stops31h 50m
Multiple Airlines
Deal found 13/5£641
Fri 5/606:20
LTN
-
SEA
1 stop18h 50m
Multiple Airlines
Tue 16/619:10
SEA
-
LTN
1 stop12h 20m
Multiple Airlines
Deal found 14/5£645
Sun 7/609:00
LTN
-
SEA
1 stop16h 10m
Multiple Airlines
Tue 16/619:10
SEA
-
LTN
1 stop12h 20m
Multiple Airlines
Deal found 14/5£646
Mon 1/608:50
LTN
-
SEA
2 stops17h 55m
Multiple Airlines
Sun 7/605:45
SEA
-
LTN
3 stops33h 10m
Multiple Airlines
Deal found 17/5£648
Tue 9/609:40
LTN
-
SEA
1 stop15h 30m
Multiple Airlines
Mon 22/619:10
SEA
-
LTN
1 stop12h 35m
Multiple Airlines
Deal found 17/5£649
Sat 6/611:00
LTN
-
SEA
1 stop14h 10m
Multiple Airlines
Tue 16/619:10
SEA
-
LTN
1 stop12h 20m
Multiple Airlines
Deal found 14/5£650
Tue 22/905:40
LTN
-
PDX
3 stops40h 10m
Multiple Airlines
Tue 29/910:10
PDX
-
LTN
2 stops21h 20m
Multiple Airlines
Deal found 15/5£687

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 17 May 2026.

Round-trip from

£589

One-way from

£282

Popular in

July

Cheapest in

February

Average price

£559
1/9-10/9
  • 1/9-10/9
  • 4 total stops
  • 44h 50m total
  • London to Washington
Search Deals
17/6
  • 17/6
  • 3 total stops
  • 39h 35m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£50 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 May 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 17 May 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 19/6

06:20-09:40

3 stops35h 20m

Seattle/Tacoma Intl

Thu 1/10

19:00-22:10

2 stops19h 10m

£635
Fastest return journey

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 2/6

09:40-17:10

1 stop15h 30m

Seattle/Tacoma Intl

Sun 7/6

19:10-15:25

1 stop12h 15m

£660

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Mon 15/6

08:15-17:10

1 stop16h 55m

Seattle/Tacoma Intl

Mon 29/6

19:10-15:45

1 stop12h 35m

£667

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Fri 18/9

06:20-09:40

3 stops35h 20m

Seattle/Tacoma Intl

Fri 25/9

15:40-22:40

3 stops23h 00m

£677

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 29/7

08:55-09:40

3 stops32h 45m

Seattle/Tacoma Intl

Tue 11/8

19:00-18:30

2 stops15h 30m

£684

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 9/6

07:05-18:45

2 stops19h 40m

Seattle/Tacoma Intl

Sun 14/6

05:45-22:55

3 stops33h 10m

£690

LondonPortland

LTN - PDX

LTNPDX

London Luton

Fri 12/6

06:20-13:50

3 stops39h 30m

Portland

Tue 1/9

10:10-13:25

2 stops19h 15m

£696

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Thu 28/5

07:55-18:45

2 stops18h 50m

Seattle/Tacoma Intl

Sun 31/5

10:30-22:55

2 stops28h 25m

£698

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Mon 15/6

08:50-21:00

2 stops20h 10m

Seattle/Tacoma Intl

Mon 22/6

13:30-01:10

3 stops27h 40m

£704

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Sat 5/9

21:25-18:45

2 stops29h 20m

Seattle/Tacoma Intl

Sun 13/9

19:10-15:25

1 stop12h 15m

£738

Flights are sorted by cheapest return flights first.

Deals found on 16/5

Showing 1-10 of 39 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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