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Cheap flights from London Luton Airport to Washington from £307

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 28/8. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — SEA
25 Jul — 1 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 25 June 2026.

Thu 27/805:40
LTN
-
SEA
3 stops36h 00m
Multiple Airlines
Mon 31/815:40
SEA
-
LTN
2 stops23h 10m
Multiple Airlines
Deal found 20/6£504
Fri 4/917:10
LTN
-
SEA
3 stops28h 35m
Multiple Airlines
Tue 8/915:55
SEA
-
LTN
2 stops22h 15m
Multiple Airlines
Deal found 22/6£527
Tue 1/909:40
LTN
-
SEA
2 stops19h 00m
Multiple Airlines
Thu 10/915:40
SEA
-
LTN
2 stops17h 05m
Multiple Airlines
Deal found 23/6£553
Thu 9/706:00
LTN
-
SEA
3 stops47h 00m
Multiple Airlines
Tue 14/715:40
SEA
-
LTN
2 stops22h 30m
Multiple Airlines
Deal found 21/6£570
Fri 4/918:15
LTN
-
SEA
3 stops34h 45m
Multiple Airlines
Sun 6/919:00
SEA
-
LTN
2 stops19h 20m
Multiple Airlines
Deal found 22/6£576
Sat 29/806:00
LTN
-
SEA
3 stops35h 40m
Multiple Airlines
Mon 31/815:40
SEA
-
LTN
2 stops23h 10m
Multiple Airlines
Deal found 23/6£592
Tue 15/921:50
LTN
-
SEA
2 stops25h 50m
Multiple Airlines
Fri 18/918:00
SEA
-
LTN
2 stops19h 05m
Multiple Airlines
Deal found 22/6£612
Fri 21/806:20
LTN
-
SEA
3 stops35h 47m
Multiple Airlines
Mon 31/815:40
SEA
-
LTN
2 stops23h 10m
Multiple Airlines
Deal found 22/6£613
Sat 27/618:10
LTN
-
SEA
3 stops34h 50m
Multiple Airlines
Thu 16/719:00
SEA
-
LTN
2 stops19h 10m
Multiple Airlines
Deal found 20/6£616
Tue 21/721:30
LTN
-
PDX
3 stops44h 01m
Multiple Airlines
Tue 28/715:30
PDX
-
LTN
2 stops16h 00m
Multiple Airlines
Deal found 23/6£740
Tue 22/909:40
LTN
-
PDX
3 stops36h 10m
Multiple Airlines
Wed 7/1015:30
PDX
-
LTN
2 stops21h 45m
Multiple Airlines
Deal found 22/6£743
Wed 23/905:40
LTN
-
PDX
3 stops35h 51m
Multiple Airlines
Mon 28/915:30
PDX
-
LTN
2 stops16h 15m
Multiple Airlines
Deal found 21/6£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 25 June 2026.

Round-trip from

£504

One-way from

£307

Popular in

July

Cheapest in

February

Average price

£635
27/8-31/8
  • 27/8-31/8
  • 5 total stops
  • 59h 10m total
  • London to Washington
Search Deals
28/8
  • 28/8
  • 3 total stops
  • 39h 30m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£53 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 25 June 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

Sat 29/8

06:00-09:40

3 stops35h 40m

Seattle/Tacoma Intl

Mon 31/8

15:40-22:50

2 stops23h 10m

£616

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Fri 10/7

06:20-09:40

2 stops35h 20m

Seattle/Tacoma Intl

Tue 14/7

15:40-22:10

2 stops22h 30m

£688

LondonPortland

LTN - PDX

LTNPDX

London Luton

Tue 21/7

21:30-09:31

3 stops44h 01m

Portland

Tue 28/7

15:30-15:30

2 stops16h 00m

£740

LondonPortland

LTN - PDX

LTNPDX

London Luton

Tue 22/9

09:40-13:50

3 stops36h 10m

Portland

Wed 7/10

15:30-21:15

2 stops21h 45m

£743

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 7/7

07:55-09:40

3 stops33h 45m

Seattle/Tacoma Intl

Sat 11/7

15:40-21:00

2 stops21h 20m

£763

LondonPortland

LTN - PDX

LTNPDX

London Luton

Wed 23/9

05:40-09:31

3 stops35h 51m

Portland

Mon 28/9

15:30-15:45

2 stops16h 15m

£770

LondonPortland

LTN - PDX

LTNPDX

London Luton

Thu 27/8

21:40-09:31

3 stops43h 51m

Portland

Wed 2/9

13:05-12:50

1 stop15h 45m

£771
Fastest return journey

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Sun 2/8

09:00-18:45

2 stops17h 45m

Seattle/Tacoma Intl

Wed 12/8

19:10-15:25

1 stop12h 15m

£789

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Sun 5/7

19:30-11:15

2 stops23h 45m

Seattle/Tacoma Intl

Wed 15/7

13:30-22:55

2 stops25h 25m

£804

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 28/7

09:40-21:00

2 stops19h 20m

Seattle/Tacoma Intl

Sun 30/8

15:40-21:40

2 stops22h 00m

£810

Flights are sorted by cheapest return flights first.

Deals found on 23/6

Showing 1-10 of 41 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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