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Cheap flights from Washington to London Luton Airport from £201

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 21/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LTN
5 Sep — 12 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Washington to Luton

Enter your travel dates to find the best prices.

Cheapest flights from Washington to Luton
Explore the most affordable flight options available from Washington to Luton. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 6 August 2026.

Wed 30/915:40 -
2 stops21h 35m
Wed 7/1006:15 -
2 stops19h 40m
Deal found 3/8£522
Wed 14/1015:40 -
2 stops21h 35m
Wed 21/1006:15 -
2 stops19h 40m
Deal found 1/8£524
Mon 19/1015:40 -
2 stops23h 10m
Wed 28/1007:45 -
2 stops17h 15m
Deal found 2/8£550
Wed 21/1015:40 -
2 stops21h 35m
Wed 28/1007:45 -
2 stops17h 15m
Deal found 3/8£551
Thu 15/1018:05 -
2 stops20h 55m
Sun 25/1017:00 -
2 stops30h 55m
Deal found 5/8£552
Sun 11/1017:40 -
2 stops21h 40m
Sat 24/1018:15 -
2 stops28h 40m
Deal found 6/8£556
Fri 2/1015:40 -
2 stops17h 45m
Fri 9/1006:20 -
2 stops19h 35m
Deal found 4/8£569
Sun 1/1114:35 -
1 stop16h 30m
Sat 7/1107:00 -
1 stop18h 00m
Deal found 3/8£575
Sun 18/1017:40 -
2 stops16h 45m
Sun 1/1117:25 -
2 stops30h 30m
Deal found 6/8£581
Thu 15/1018:05 -
2 stops20h 55m
Sat 24/1018:15 -
2 stops28h 40m
Deal found 5/8£582
Sun 25/1019:10 -
1 stop12h 55m
Thu 5/1106:00 -
1 stop19h 00m
Deal found 6/8£585
Tue 1/915:40 -
2 stops22h 30m
Tue 8/909:40 -
2 stops34h 05m
Deal found 1/8£588

Find flight deals from Washington to Luton

Keep the following information in mind while searching for Washington to Luton flight deals. Data was last updated 6 August 2026.

Round-trip from

£522

One-way from

£201

Popular in

June

Cheapest in

January

Average price

£615
30/9-7/10
  • 30/9-7/10
  • 4 total stops
  • 41h 15m total
  • Washington to London
Search Deals
21/10
  • 21/10
  • 3 total stops
  • 46h 40m total
  • Washington to London
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£122 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Washington to Luton 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 6 August 2026.
Use the filters below to find and compare flights from Washington to London Luton Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Tue 18/8

19:00-22:50

2 stops19h 50m

London Luton

Wed 2/9

06:10-22:42

3 stops24h 32m

£599

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Thu 17/9

19:00-18:25

2 stops15h 25m

London Luton

Thu 24/9

06:05-18:45

2 stops20h 40m

£602

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Tue 8/9

18:05-20:10

2 stops18h 05m

London Luton

Mon 14/9

20:50-15:40

2 stops26h 50m

£606

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Mon 21/9

08:00-20:55

3 stops28h 55m

London Luton

Wed 30/9

06:00-16:59

2 stops18h 59m

£623

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Sat 28/11

14:35-13:05

1 stop14h 30m

London Luton

Fri 11/12

06:00-17:00

1 stop19h 00m

£631

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Thu 24/9

18:05-23:00

2 stops20h 55m

London Luton

Mon 28/9

18:05-15:40

2 stops29h 35m

£631

PortlandLondon

PDX Portland - LTN London Luton

PDXLTN

Portland

Mon 19/10

15:30-22:15

2 stops22h 45m

London Luton

Fri 30/10

07:00-18:00

2 stops18h 00m

£657

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Wed 4/11

08:40-20:50

3 stops28h 10m

London Luton

Tue 10/11

21:30-14:37

3 stops25h 07m

£658

PortlandLondon

PDX Portland - LTN London Luton

PDXLTN

Portland

Sat 29/8

15:30-21:00

2 stops21h 30m

London Luton

Wed 9/9

06:10-09:31

3 stops35h 21m

£666

SeattleLondon

SEA Seattle/Tacoma Intl - LTN London Luton

SEALTN

Seattle/Tacoma Intl

Wed 16/9

19:00-22:15

2 stops19h 15m

London Luton

Wed 23/9

06:10-18:45

2 stops20h 35m

£680

Flights are sorted by cheapest return flights first.

Deals found on 1/8

Showing 1-10 of 42 resultsSorted by cheapest first
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Best time to book a flight from Washington to Luton

Have a flexible travel schedule? Discover the best time to fly to Luton from Washington 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 Washington to London Luton Airport

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 Washington to Luton. 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 Washington to Luton that include hotel bookings?

    Yes. In addition to deals on Washington to Luton flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Washington to Luton?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Luton.

  • Can I find deals for business class flights from Washington to Luton?

    Yes. Cheapflights offers flight deals from Washington to Luton by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Travelling to a place near London Luton Airport?

Book flights to London Luton Airport if you plan to visit one of these locations
Hounslow
Milton Keynes
Gatwick
Luton
Wembley
Slough
Ilford
Hayes
Croydon
Colchester
Eastbourne
Brentford
Watford
Southend-on-Sea
Enfield
Kingston upon Thames
Southall
Dover
Romford
Borehamwood

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Washington to Luton

See prices for flight routes from nearby airports that may be better suited for you.
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How does Cheapflights help users find flights from Washington to Luton?

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Yes, Cheapflights offers price alerts on Washington to Luton flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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