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Cheap flights from London Luton Airport to Washington from £356

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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — SEA
21 Dec — 28 Dec1
1 adult
1 adult, Economy, 0 bags

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 21 November 2025.

Tue 2/1207:10LTN - SEA
3 stops34h 21mMultiple Airlines
Wed 10/1214:35SEA - LTN
2 stops23h 20mMultiple Airlines
Deal found 21/11£634
Wed 3/1220:50LTN - SEA
2 stops26h 50mMultiple Airlines
Thu 11/1208:10SEA - LTN
3 stops28h 00mMultiple Airlines
Deal found 21/11£694
Tue 2/1207:10LTN - SEA
3 stops34h 21mMultiple Airlines
Fri 5/1210:05SEA - LTN
3 stops26h 05mMultiple Airlines
Deal found 21/11£695
Wed 3/1208:00LTN - PDX
1 stop17h 00mMultiple Airlines
Tue 9/1214:45PDX - LTN
2 stops35h 45mMultiple Airlines
Deal found 21/11£730
Thu 4/1214:00LTN - PDX
1 stop35h 00mMultiple Airlines
Tue 9/1214:45PDX - LTN
2 stops35h 45mMultiple Airlines
Deal found 21/11£743
Mon 15/1206:00LTN - SEA
2 stops22h 35mMultiple Airlines
Wed 31/1220:05SEA - LTN
1 stop19h 00mMultiple Airlines
Deal found 20/11£744
Mon 15/1206:00LTN - SEA
2 stops19h 00mMultiple Airlines
Tue 30/1214:35SEA - LTN
2 stops21h 30mMultiple Airlines
Deal found 21/11£763
Thu 25/1219:30LTN - SEA
2 stops34h 46mMultiple Airlines
Wed 7/115:10SEA - LTN
2 stops19h 30mMultiple Airlines
Deal found 21/11£782
Wed 10/1208:00LTN - PDX
1 stop17h 00mMultiple Airlines
Mon 12/109:50PDX - LTN
3 stops28h 00mMultiple Airlines
Deal found 21/11£782
Wed 10/1208:00LTN - SEA
1 stop17h 00mMultiple Airlines
Sun 1/215:10SEA - LTN
2 stops15h 25mMultiple Airlines
Deal found 19/11£793
Tue 16/1209:00LTN - SEA
2 stops16h 00mMultiple Airlines
Sat 10/114:35SEA - LTN
2 stops23h 50mMultiple Airlines
Deal found 19/11£798
Mon 24/1108:00LTN - PDX
1 stop17h 00mMultiple Airlines
Tue 25/1114:45PDX - LTN
2 stops16h 10mMultiple Airlines
Deal found 20/11£820

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 21 November 2025.

Round-trip from

£622

One-way from

£356

Popular in

July

Cheapest in

February

Average price

£547
25/2-7/3
  • 25/2-7/3
  • 5 total stops
  • 58h 21m total
  • London to Washington
Search Deals
2/2
  • 2/2
  • 3 total stops
  • 55h 03m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£58 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 November 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 21 November 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

Wed 25/2

07:00-09:31

3 stops34h 31m

Seattle/Tacoma Intl

Sat 7/3

14:35-22:25

2 stops23h 50m

£622

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 2/12

07:10-09:31

3 stops34h 21m

Seattle/Tacoma Intl

Wed 10/12

14:35-21:55

2 stops23h 20m

£634

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 2/12

07:10-09:31

3 stops34h 21m

Seattle/Tacoma Intl

Fri 5/12

10:05-20:10

3 stops26h 05m

£695

LondonPortland

LTN - PDX

LTNPDX

London Luton

Mon 9/3

08:00-18:00

1 stop17h 00m

Portland

Thu 12/3

15:45-21:50

2 stops23h 05m

£717

LondonPortland

LTN - PDX

LTNPDX

London Luton

Wed 3/12

08:00-17:00

1 stop17h 00m

Portland

Tue 9/12

14:45-10:30

2 stops35h 45m

£730

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 24/2

07:00-17:00

1 stop18h 00m

Seattle/Tacoma Intl

Thu 26/2

15:10-17:15

2 stops18h 05m

£738

LondonPortland

LTN - PDX

LTNPDX

London Luton

Thu 4/12

14:00-17:00

1 stop35h 00m

Portland

Tue 9/12

14:45-10:30

2 stops35h 45m

£743

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Mon 15/12

06:00-20:35

2 stops22h 35m

Seattle/Tacoma Intl

Wed 31/12

20:05-23:05

1 stop19h 00m

£744

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Thu 25/12

19:30-22:16

2 stops34h 46m

Seattle/Tacoma Intl

Wed 7/1

15:10-18:40

2 stops19h 30m

£782

LondonPortland

LTN - PDX

LTNPDX

London Luton

Wed 10/12

08:00-17:00

1 stop17h 00m

Portland

Mon 12/1

09:50-21:50

3 stops28h 00m

£782

Flights are sorted by cheapest return flights first.

Deals found on 19/11

Showing 1-10 of 37 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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