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Cheap flights from Washington to London Luton Airport from £173

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 26/3. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LTN
30 Mar — 6 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 28 February 2026.

Sun 29/315:40
SEA
-
LTN
2 stops22h 40m
Multiple Airlines
Tue 14/409:15
LTN
-
SEA
3 stops21h 35m
Multiple Airlines
Deal found 25/2£448
Thu 16/415:40
SEA
-
LTN
2 stops23h 05m
Multiple Airlines
Mon 20/406:20
LTN
-
SEA
2 stops22h 20m
Multiple Airlines
Deal found 26/2£448
Thu 23/419:00
SEA
-
LTN
2 stops19h 10m
Multiple Airlines
Sun 3/508:30
LTN
-
SEA
2 stops33h 10m
Multiple Airlines
Deal found 25/2£449
Thu 30/415:40
SEA
-
LTN
2 stops23h 05m
Multiple Airlines
Tue 5/509:40
LTN
-
SEA
3 stops20h 40m
Multiple Airlines
Deal found 25/2£452
Fri 24/419:00
SEA
-
LTN
2 stops13h 20m
Multiple Airlines
Wed 29/406:15
LTN
-
SEA
3 stops35h 25m
Multiple Airlines
Deal found 25/2£473
Thu 23/419:00
SEA
-
LTN
2 stops19h 10m
Multiple Airlines
Tue 5/509:15
LTN
-
SEA
2 stops32h 25m
Multiple Airlines
Deal found 28/2£480
Fri 24/419:00
SEA
-
LTN
2 stops13h 20m
Multiple Airlines
Thu 14/509:15
LTN
-
SEA
2 stops32h 25m
Multiple Airlines
Deal found 25/2£481
Wed 22/415:40
SEA
-
LTN
2 stops21h 35m
Multiple Airlines
Tue 28/409:40
LTN
-
SEA
2 stops19h 00m
Multiple Airlines
Deal found 24/2£492
Sun 29/315:40
SEA
-
LTN
2 stops22h 40m
Multiple Airlines
Tue 21/409:15
LTN
-
SEA
3 stops42h 05m
Multiple Airlines
Deal found 28/2£494
Mon 13/415:30
PDX
-
LTN
2 stops23h 20m
Multiple Airlines
Mon 20/408:15
LTN
-
PDX
2 stops17h 45m
Multiple Airlines
Deal found 27/2£496
Mon 4/515:40
SEA
-
LTN
2 stops21h 25m
Multiple Airlines
Fri 8/509:15
LTN
-
SEA
2 stops19h 25m
Multiple Airlines
Deal found 27/2£497
Mon 4/515:30
PDX
-
LTN
2 stops22h 35m
Multiple Airlines
Wed 6/507:00
LTN
-
PDX
3 stops34h 30m
Multiple Airlines
Deal found 25/2£543

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 28 February 2026.

Round-trip from

£448

One-way from

£173

Popular in

June

Cheapest in

January

Average price

£511
29/3-14/4
  • 29/3-14/4
  • 5 total stops
  • 44h 15m total
  • Washington to London
Search Deals
26/3
  • 26/3
  • 2 total stops
  • 23h 15m total
  • Washington to London
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£72 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 February 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 28 February 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

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Thu 30/4

15:40-22:45

2 stops23h 05m

London Luton

Tue 5/5

09:40-22:20

3 stops20h 40m

£452

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Fri 24/4

19:00-16:20

2 stops13h 20m

London Luton

Fri 1/5

06:20-18:45

2 stops20h 25m

£554

PortlandLondon

PDX - LTN

PDXLTN

Portland

Sun 26/4

08:00-22:20

3 stops30h 20m

London Luton

Sun 3/5

09:00-19:05

3 stops42h 05m

£563

PortlandLondon

PDX - LTN

PDXLTN

Portland

Tue 14/4

15:30-12:55

1 stop13h 25m

London Luton

Sun 26/4

06:25-18:00

1 stop19h 35m

£585

PortlandLondon

PDX - LTN

PDXLTN

Portland

Mon 30/3

15:30-17:10

2 stops17h 40m

London Luton

Mon 6/4

06:05-18:30

3 stops44h 25m

£597

PortlandLondon

PDX - LTN

PDXLTN

Portland

Mon 27/4

15:30-17:10

2 stops17h 40m

London Luton

Thu 7/5

06:05-19:05

3 stops45h 00m

£603

PortlandLondon

PDX - LTN

PDXLTN

Portland

Thu 9/4

15:30-23:25

3 stops23h 55m

London Luton

Fri 17/4

09:15-09:10

3 stops31h 55m

£626

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Sat 23/5

19:00-21:00

2 stops18h 00m

London Luton

Sat 30/5

06:05-18:30

3 stops44h 25m

£631

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Tue 10/3

15:35-22:10

2 stops23h 35m

London Luton

Fri 13/3

09:00-22:16

3 stops44h 16m

£635

SeattleLondon

SEA - LTN

SEALTN

Seattle/Tacoma Intl

Tue 26/5

10:30-13:25

2 stops18h 55m

London Luton

Sat 6/6

09:00-09:40

3 stops32h 40m

£666

Flights are sorted by cheapest return flights first.

Deals found on 25/2

Showing 1-10 of 39 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
Croydon
Wembley
Luton
Gatwick
Slough
Hounslow
Ilford
Hayes
Brentford
Colchester
Watford
Guildford
Kingston upon Thames
Eastbourne
Ipswich
Chelmsford
Bedford
Romford
Folkestone

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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Users can book flights with no change fees policies with our dedicated filters. Book flights from Washington to Luton flexibly with Cheapflights today.

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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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