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Cheap flights from London Luton Airport to Washington from £287

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 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — SEA
11 Jan — 18 Jan1
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 December 2025.

Wed 24/1220:50LTN - SEA
2 stops26h 50mMultiple Airlines
Tue 6/105:50SEA - LTN
3 stops30h 15mMultiple Airlines
Deal found 10/12£786
Fri 26/1213:05LTN - SEA
1 stop13h 15mMultiple Airlines
Tue 6/107:09SEA - LTN
2 stops28h 56mMultiple Airlines
Deal found 10/12£878
Thu 11/1221:40LTN - SEA
2 stops27h 25mMultiple Airlines
Sat 31/111:55SEA - LTN
3 stops21h 00mMultiple Airlines
Deal found 11/12£953
Thu 18/1216:05LTN - SEA
2 stops33h 00mMultiple Airlines
Mon 23/315:35SEA - LTN
2 stops17h 35mMultiple Airlines
Deal found 10/12£993
Fri 12/1213:55LTN - SEA
2 stops35h 10mMultiple Airlines
Thu 25/1208:10SEA - LTN
2 stops23h 50mMultiple Airlines
Deal found 11/12£1,025
Fri 26/1211:45LTN - SEA
2 stops35h 55mMultiple Airlines
Tue 30/1217:40SEA - LTN
2 stops16h 10mMultiple Airlines
Deal found 10/12£1,120
Thu 18/1218:35LTN - PDX
3 stops31h 55mMultiple Airlines
Sat 3/114:45PDX - LTN
2 stops23h 05mMultiple Airlines
Deal found 9/12£2,818

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 December 2025.

Round-trip from

£627

One-way from

£287

Popular in

July

Cheapest in

January

Average price

£637
6/2-16/2
  • 6/2-16/2
  • 5 total stops
  • 53h 00m total
  • London to Washington
Search Deals
5/4
  • 5/4
  • 3 total stops
  • 48h 10m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£59 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 December 2025.
Use the filters below to find and compare flights from London Luton Airport to Washington that are best for you.

Fly from

Luton

Fly to

Washington

Route

Depart

Return

Price

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Fri 6/2

07:00-10:25

3 stops35h 25m

Seattle/Tacoma Intl

Mon 16/2

14:35-16:10

2 stops17h 35m

£627

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Mon 2/2

07:20-09:31

3 stops34h 11m

Seattle/Tacoma Intl

Fri 6/2

10:05-20:10

3 stops26h 05m

£651

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Fri 30/1

07:00-10:22

3 stops35h 22m

Seattle/Tacoma Intl

Mon 9/2

14:35-16:10

2 stops17h 35m

£670

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Sat 14/3

06:00-22:16

2 stops23h 16m

Seattle/Tacoma Intl

Sun 22/3

21:05-16:45

1 stop12h 40m

£672

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Sun 12/4

12:25-14:19

3 stops33h 54m

Seattle/Tacoma Intl

Sat 18/4

15:40-22:30

2 stops22h 50m

£700

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 25/3

20:50-16:40

2 stops26h 50m

Seattle/Tacoma Intl

Sat 11/4

19:00-22:30

2 stops19h 30m

£704

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Sat 24/1

07:15-22:06

3 stops22h 51m

Seattle/Tacoma Intl

Sat 31/1

14:35-18:20

2 stops19h 45m

£709

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 13/1

07:00-17:00

1 stop18h 00m

Seattle/Tacoma Intl

Wed 28/1

15:10-21:50

2 stops22h 40m

£719

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Fri 6/2

07:00-10:25

3 stops35h 25m

Seattle/Tacoma Intl

Sun 8/2

14:35-16:45

2 stops18h 10m

£727

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 14/1

08:00-17:00

1 stop17h 00m

Seattle/Tacoma Intl

Wed 21/1

15:10-20:05

2 stops20h 55m

£749

Flights are sorted by cheapest return flights first.

Deals found on 10/12

Showing 1-10 of 33 results
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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

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