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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 14/4. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — SEA
6 Feb — 13 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Luton to Washington

Keep the following information in mind while searching for Luton to Washington flight deals. Data was last updated 7 January 2026.

Round-trip from

£398

One-way from

£282

Popular in

July

Cheapest in

January

Average price

£470
21/1-25/1
  • 21/1-25/1
  • 4 total stops
  • 36h 20m total
  • London to Washington
Search Deals
14/4
  • 14/4
  • 3 total stops
  • 46h 34m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (£60 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find 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 7 January 2026.

Wed 21/106:50LTN - SEA
2 stops18h 10mMultiple Airlines
Sun 25/114:35SEA - LTN
2 stops18h 10mMultiple Airlines
Deal found 5/1£398
Tue 28/408:05LTN - SEA
2 stops20h 23mMultiple Airlines
Tue 5/518:55SEA - LTN
1 stop12h 35mMultiple Airlines
Deal found 5/1£513
Tue 28/408:05LTN - SEA
2 stops20h 23mMultiple Airlines
Mon 4/518:55SEA - LTN
1 stop12h 50mMultiple Airlines
Deal found 5/1£526
Mon 2/207:20LTN - SEA
3 stops34h 11mMultiple Airlines
Sun 8/214:35SEA - LTN
2 stops18h 25mMultiple Airlines
Deal found 6/1£536
Wed 21/107:00LTN - SEA
3 stops34h 15mMultiple Airlines
Sat 31/114:35SEA - LTN
2 stops20h 35mMultiple Airlines
Deal found 5/1£539
Tue 16/608:05LTN - SEA
1 stop17h 05mMultiple Airlines
Sun 21/618:55SEA - LTN
1 stop12h 30mMultiple Airlines
Deal found 6/1£549
Sat 31/107:15LTN - SEA
3 stops22h 51mMultiple Airlines
Wed 4/214:35SEA - LTN
2 stops17h 40mMultiple Airlines
Deal found 4/1£593
Wed 11/207:00LTN - SEA
3 stops23h 51mMultiple Airlines
Sun 15/215:10SEA - LTN
2 stops19h 05mMultiple Airlines
Deal found 6/1£594
Wed 18/206:50LTN - SEA
2 stops45h 26mMultiple Airlines
Wed 25/220:05SEA - LTN
1 stop19h 00mMultiple Airlines
Deal found 4/1£597
Sat 31/116:30LTN - SEA
3 stops37h 46mMultiple Airlines
Wed 4/314:35SEA - LTN
2 stops21h 25mMultiple Airlines
Deal found 6/1£600
Fri 20/205:50LTN - SEA
2 stops25h 53mMultiple Airlines
Fri 27/220:05SEA - LTN
1 stop12h 10mMultiple Airlines
Deal found 6/1£602
Fri 30/107:00LTN - PDX
3 stops34h 15mMultiple Airlines
Sat 7/314:45PDX - LTN
2 stops20h 25mMultiple Airlines
Deal found 5/1£637

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 7 January 2026.
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

Mon 2/2

06:00-17:00

2 stops19h 00m

Seattle/Tacoma Intl

Sun 8/2

14:35-16:45

2 stops18h 10m

£398

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Mon 2/3

07:20-09:31

3 stops34h 11m

Seattle/Tacoma Intl

Tue 10/3

15:35-14:50

2 stops16h 15m

£593

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 18/2

06:50-20:16

2 stops45h 26m

Seattle/Tacoma Intl

Wed 25/2

20:05-23:05

1 stop19h 00m

£597

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Fri 20/2

05:50-23:43

2 stops25h 53m

Seattle/Tacoma Intl

Fri 27/2

20:05-16:15

1 stop12h 10m

£602

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 3/2

07:10-09:15

3 stops34h 05m

Seattle/Tacoma Intl

Tue 24/2

14:35-14:50

2 stops16h 15m

£604

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Fri 6/3

05:50-18:20

1 stop20h 30m

Seattle/Tacoma Intl

Fri 13/3

21:05-20:10

1 stop16h 05m

£613

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Fri 30/1

07:00-10:22

3 stops35h 22m

Seattle/Tacoma Intl

Sat 7/3

08:10-20:25

3 stops28h 15m

£631

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 31/3

17:20-21:51

3 stops36h 31m

Seattle/Tacoma Intl

Sat 11/4

19:00-22:30

2 stops19h 30m

£634

LondonPortland

LTN - PDX

LTNPDX

London Luton

Fri 30/1

07:00-09:15

3 stops34h 15m

Portland

Sat 7/3

14:45-19:10

2 stops20h 25m

£637

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Sat 24/1

07:15-22:06

3 stops22h 51m

Seattle/Tacoma Intl

Mon 26/1

14:35-16:10

2 stops17h 35m

£640

Flights are sorted by cheapest return flights first.

Deals found on 5/1

Showing 1-10 of 38 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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