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Cheap flights from London Luton Airport to Washington from £324

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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — SEA
11 Dec — 18 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 11 November 2025.

Sun 16/1108:05LTN - SEA
1 stop18h 15mMultiple Airlines
Sun 30/1120:05SEA - LTN
1 stop12h 40mMultiple Airlines
Deal found 8/11£542
Tue 23/1220:50LTN - SEA
2 stops26h 50mMultiple Airlines
Tue 30/1217:40SEA - LTN
2 stops18h 30mMultiple Airlines
Deal found 8/11£617
Thu 11/1207:15LTN - SEA
3 stops35h 07mMultiple Airlines
Mon 5/114:35SEA - LTN
2 stops17h 35mMultiple Airlines
Deal found 8/11£675
Mon 24/1107:20LTN - PDX
2 stops17h 40mMultiple Airlines
Mon 8/1214:45PDX - LTN
2 stops23h 05mMultiple Airlines
Deal found 9/11£686
Wed 24/1206:50LTN - SEA
2 stops18h 10mMultiple Airlines
Wed 31/1214:35SEA - LTN
2 stops24h 30mMultiple Airlines
Deal found 10/11£691
Sun 7/1207:00LTN - SEA
3 stops34h 31mMultiple Airlines
Sun 14/1208:10SEA - LTN
2 stops19h 35mMultiple Airlines
Deal found 9/11£696
Sun 23/1106:00LTN - PDX
1 stop19h 00mMultiple Airlines
Mon 1/1214:45PDX - LTN
1 stop15h 15mMultiple Airlines
Deal found 9/11£705
Mon 8/1208:00LTN - PDX
1 stop17h 00mMultiple Airlines
Mon 15/1214:45PDX - LTN
1 stop15h 15mMultiple Airlines
Deal found 10/11£712
Mon 24/1108:00LTN - PDX
1 stop17h 00mMultiple Airlines
Mon 1/1214:45PDX - LTN
2 stops15h 25mMultiple Airlines
Deal found 8/11£728
Mon 15/1206:25LTN - SEA
3 stops47h 51mMultiple Airlines
Thu 8/110:05SEA - LTN
3 stops23h 10mMultiple Airlines
Deal found 8/11£728
Tue 16/1207:00LTN - SEA
1 stop18h 00mMultiple Airlines
Sat 10/114:35SEA - LTN
2 stops23h 50mMultiple Airlines
Deal found 8/11£737
Mon 8/1208:00LTN - PDX
1 stop17h 00mMultiple Airlines
Mon 22/1214:45PDX - LTN
1 stop15h 15mMultiple Airlines
Deal found 9/11£741

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 11 November 2025.

Round-trip from

£617

One-way from

£324

Popular in

July

Cheapest in

January

Average price

£544
23/12-30/12
  • 23/12-30/12
  • 4 total stops
  • 45h 20m total
  • London to Washington
Search Deals
12/12
  • 12/12
  • 3 total stops
  • 58h 41m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£57 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 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 11 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

Tue 23/12

20:50-15:40

2 stops26h 50m

Seattle/Tacoma Intl

Tue 30/12

17:40-20:10

2 stops18h 30m

£617

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Thu 11/12

07:15-10:22

3 stops35h 07m

Seattle/Tacoma Intl

Mon 5/1

14:35-16:10

2 stops17h 35m

£675

LondonPortland

LTN - PDX

LTNPDX

London Luton

Mon 24/11

07:20-17:00

2 stops17h 40m

Portland

Mon 8/12

14:45-21:50

2 stops23h 05m

£686

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 24/12

06:50-17:00

2 stops18h 10m

Seattle/Tacoma Intl

Wed 31/12

14:35-23:05

2 stops24h 30m

£691

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Sun 7/12

07:00-09:31

3 stops34h 31m

Seattle/Tacoma Intl

Sun 14/12

08:10-11:45

2 stops19h 35m

£696

LondonPortland

LTN - PDX

LTNPDX

London Luton

Sun 23/11

06:00-17:00

1 stop19h 00m

Portland

Mon 1/12

14:45-21:50

2 stops23h 05m

£722

LondonPortland

LTN - PDX

LTNPDX

London Luton

Mon 8/12

07:20-17:00

2 stops17h 40m

Portland

Mon 15/12

14:45-20:00

2 stops21h 15m

£726

LondonPortland

LTN - PDX

LTNPDX

London Luton

Mon 24/11

08:00-17:00

1 stop17h 00m

Portland

Mon 1/12

14:45-14:10

2 stops15h 25m

£728

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 16/12

07:00-17:00

1 stop18h 00m

Seattle/Tacoma Intl

Sat 10/1

14:35-22:25

2 stops23h 50m

£737

LondonPortland

LTN - PDX

LTNPDX

London Luton

Mon 8/12

08:00-17:00

1 stop17h 00m

Portland

Mon 22/12

14:45-14:00

1 stop15h 15m

£741

Flights are sorted by cheapest return flights first.

Deals found on 9/11

Showing 1-10 of 34 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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