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Cheap flights from London Luton Airport to Washington from £281

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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — SEA
20 févr. — 27 févr.1
1 adult
1 adult, Economy, 0 bags

Cheap 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 janvier 2026.

mar. 17/209:00
LTN
-
SEA
2 stops16h 00m
Multiple Airlines
mar. 24/214:35
SEA
-
LTN
2 stops21h 30m
Multiple Airlines
Deal found 20/1£433
mer. 29/406:15
LTN
-
SEA
2 stops21h 08m
Multiple Airlines
lun. 4/518:55
SEA
-
LTN
1 stop12h 50m
Multiple Airlines
Deal found 20/1£561
ven. 6/309:30
LTN
-
SEA
2 stops34h 40m
Multiple Airlines
ven. 13/308:10
SEA
-
LTN
2 stops25h 10m
Multiple Airlines
Deal found 20/1£575
ven. 1/520:25
LTN
-
SEA
3 stops32h 03m
Multiple Airlines
lun. 11/509:55
SEA
-
LTN
3 stops24h 55m
Multiple Airlines
Deal found 20/1£600
mer. 18/217:50
LTN
-
SEA
2 stops29h 50m
Multiple Airlines
mer. 25/215:10
SEA
-
LTN
2 stops20h 45m
Multiple Airlines
Deal found 19/1£601
ven. 1/520:25
LTN
-
SEA
3 stops32h 03m
Multiple Airlines
dim. 10/505:40
SEA
-
LTN
3 stops30h 00m
Multiple Airlines
Deal found 20/1£610
mar. 3/207:00
LTN
-
SEA
1 stop18h 00m
Multiple Airlines
mer. 4/215:10
SEA
-
LTN
2 stops20h 45m
Multiple Airlines
Deal found 20/1£625
jeu. 5/309:00
LTN
-
SEA
2 stops16h 00m
Multiple Airlines
jeu. 12/315:35
SEA
-
LTN
2 stops21h 55m
Multiple Airlines
Deal found 19/1£656
mar. 3/207:00
LTN
-
SEA
1 stop18h 00m
Multiple Airlines
mar. 24/214:35
SEA
-
LTN
2 stops16h 15m
Multiple Airlines
Deal found 20/1£666
mer. 25/308:00
LTN
-
PDX
1 stop17h 00m
Multiple Airlines
sam. 4/415:30
PDX
-
LTN
2 stops21h 30m
Multiple Airlines
Deal found 19/1£681
lun. 9/308:00
LTN
-
PDX
1 stop17h 00m
Multiple Airlines
lun. 16/315:45
PDX
-
LTN
1 stop15h 15m
Multiple Airlines
Deal found 20/1£688
lun. 23/206:30
LTN
-
PDX
2 stops19h 03m
Multiple Airlines
lun. 9/314:25
PDX
-
LTN
1 stop12h 00m
Multiple Airlines
Deal found 20/1£886

Find 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 janvier 2026.

Round-trip from

£398

One-way from

£281

Popular in

July

Cheapest in

February

Average price

£479
4/3-11/3
  • 4/3-11/3
  • 4 total stops
  • 42h 40m total
  • London to Washington
Search Deals
7/4
  • 7/4
  • 2 total stops
  • 53h 12m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£59 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 January 2026
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 janvier 2026.
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

mar. 17/2

09:00-17:00

2 stops16h 00m

Seattle/Tacoma Intl

mar. 24/2

14:35-20:05

2 stops21h 30m

£433

LondonSeattle

LTN - SEA

LTNSEA

London Luton

mer. 29/4

06:15-19:23

2 stops21h 08m

Seattle/Tacoma Intl

lun. 4/5

18:55-15:45

1 stop12h 50m

£561

LondonSeattle

LTN - SEA

LTNSEA

London Luton

ven. 6/3

09:30-12:10

2 stops34h 40m

Seattle/Tacoma Intl

ven. 13/3

08:10-16:20

2 stops25h 10m

£575

LondonSeattle

LTN - SEA

LTNSEA

London Luton

ven. 1/5

20:25-20:28

3 stops32h 03m

Seattle/Tacoma Intl

lun. 11/5

09:55-18:50

3 stops24h 55m

£600

LondonSeattle

LTN - SEA

LTNSEA

London Luton

ven. 1/5

20:25-20:28

3 stops32h 03m

Seattle/Tacoma Intl

dim. 10/5

14:10-18:50

2 stops20h 40m

£600

LondonSeattle

LTN - SEA

LTNSEA

London Luton

mer. 18/2

17:50-15:40

2 stops29h 50m

Seattle/Tacoma Intl

mer. 25/2

15:10-19:55

2 stops20h 45m

£601

LondonSeattle

LTN - SEA

LTNSEA

London Luton

mar. 3/2

07:00-17:00

1 stop18h 00m

Seattle/Tacoma Intl

mer. 4/2

08:00-19:55

3 stops27h 55m

£641

LondonSeattle

LTN - SEA

LTNSEA

London Luton

jeu. 5/3

09:00-17:00

2 stops16h 00m

Seattle/Tacoma Intl

jeu. 12/3

15:35-20:30

2 stops21h 55m

£656

LondonSeattle

LTN - SEA

LTNSEA

London Luton

mar. 3/2

07:00-17:00

1 stop18h 00m

Seattle/Tacoma Intl

mar. 24/2

14:35-14:50

2 stops16h 15m

£666

LondonPortland

LTN - PDX

LTNPDX

London Luton

mer. 25/3

08:00-18:00

1 stop17h 00m

Portland

sam. 4/4

15:30-21:00

2 stops21h 30m

£681

Flights are sorted by cheapest return flights first.

Deals found on 19/1

Showing 1-10 of 36 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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Alternative routes for Luton to Washington

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