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Cheap flights from Washington to London Luton Airport from £183

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.
SEA — LTN
8 Apr — 15 Apr1
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 9 March 2026.

Tue 5/519:00
SEA
-
LTN
2 stops19h 50m
Multiple Airlines
Tue 12/509:40
LTN
-
SEA
2 stops17h 05m
Multiple Airlines
Deal found 5/3£515
Sat 23/508:00
SEA
-
LTN
3 stops30h 55m
Multiple Airlines
Sat 20/605:40
LTN
-
SEA
2 stops23h 20m
Multiple Airlines
Deal found 5/3£536
Mon 27/419:00
SEA
-
LTN
2 stops14h 10m
Multiple Airlines
Tue 5/509:15
LTN
-
SEA
2 stops32h 25m
Multiple Airlines
Deal found 7/3£544
Mon 6/415:30
PDX
-
LTN
2 stops23h 20m
Multiple Airlines
Mon 13/408:15
LTN
-
PDX
2 stops17h 45m
Multiple Airlines
Deal found 7/3£548
Wed 22/415:40
SEA
-
LTN
2 stops16h 55m
Multiple Airlines
Wed 29/409:15
LTN
-
SEA
2 stops32h 25m
Multiple Airlines
Deal found 8/3£549
Thu 7/519:10
SEA
-
LTN
1 stop13h 35m
Multiple Airlines
Wed 20/506:15
LTN
-
SEA
1 stop18h 55m
Multiple Airlines
Deal found 7/3£560
Tue 21/415:15
PDX
-
LTN
3 stops22h 55m
Multiple Airlines
Mon 4/518:40
LTN
-
PDX
3 stops32h 25m
Multiple Airlines
Deal found 7/3£567
Fri 8/519:10
SEA
-
LTN
1 stop14h 15m
Multiple Airlines
Tue 19/509:40
LTN
-
SEA
1 stop15h 30m
Multiple Airlines
Deal found 9/3£570
Mon 13/415:30
PDX
-
LTN
2 stops16h 15m
Multiple Airlines
Mon 20/408:15
LTN
-
PDX
2 stops17h 45m
Multiple Airlines
Deal found 7/3£605
Sat 2/510:10
PDX
-
LTN
2 stops16h 20m
Multiple Airlines
Sun 10/518:55
LTN
-
PDX
3 stops32h 10m
Multiple Airlines
Deal found 5/3£614
Thu 26/315:45
PDX
-
LTN
2 stops23h 15m
Multiple Airlines
Mon 13/406:05
LTN
-
PDX
3 stops35h 05m
Multiple Airlines
Deal found 7/3£643
Sat 28/315:45
PDX
-
LTN
3 stops21h 55m
Multiple Airlines
Sat 4/409:15
LTN
-
PDX
3 stops31h 55m
Multiple Airlines
Deal found 5/3£685

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 9 March 2026.

Round-trip from

£515

One-way from

£183

Popular in

June

Cheapest in

October

Average price

£515
5/5-12/5
  • 5/5-12/5
  • 4 total stops
  • 36h 55m total
  • Washington to London
Search Deals
14/4
  • 14/4
  • 3 total stops
  • 39h 55m total
  • Washington to London
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£69 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 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 9 March 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 - LTN

SEALTN

Seattle/Tacoma Intl

Tue 7/4

19:00-18:30

2 stops15h 30m

London Luton

Tue 14/4

08:50-20:40

2 stops19h 50m

£610

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Wed 8/4

08:00-16:35

3 stops24h 35m

London Luton

Fri 17/4

06:05-22:50

3 stops24h 45m

£630

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Tue 26/5

19:00-18:30

2 stops15h 30m

London Luton

Tue 16/6

09:40-21:08

2 stops19h 28m

£711

PortlandLondon

PDX - LTN

PDXLTN

Portland

Tue 5/5

10:10-13:25

2 stops19h 15m

London Luton

Tue 19/5

09:45-09:30

3 stops31h 45m

£740

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Wed 1/4

14:10-15:25

2 stops17h 15m

London Luton

Thu 9/4

21:40-22:10

3 stops32h 30m

£756

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Mon 6/4

19:10-22:50

1 stop19h 40m

London Luton

Thu 16/4

09:25-17:10

1 stop15h 45m

£759
Fastest return journey

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Sat 22/8

19:00-21:00

2 stops18h 00m

London Luton

Sun 30/8

06:25-11:45

1 stop13h 20m

£783

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Thu 9/4

08:00-18:05

2 stops26h 05m

London Luton

Sun 12/4

05:40-21:53

2 stops24h 13m

£784

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Sat 22/8

19:10-21:55

1 stop18h 45m

London Luton

Sat 29/8

09:00-17:10

1 stop16h 10m

£790

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Wed 8/4

19:10-15:25

1 stop12h 15m

London Luton

Sun 12/4

09:15-19:20

3 stops42h 05m

£791

Flights are sorted by cheapest return flights first.

Deals found on 4/3

Showing 1-10 of 41 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
Milton Keynes
Wembley
Croydon
Luton
Hounslow
Slough
Gatwick
Ilford
Hayes
Brentford
Colchester
Guildford
Watford
Kingston upon Thames
Chelmsford
Eastbourne
Ipswich
Bedford
Romford
Southend-on-Sea

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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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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