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Cheap flights from London Luton Airport to Washington from £289

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 26/8. Fares are subject to change and may not be available on all flights or dates of travel.
LTN — SEA
27 Jun — 4 Jul1
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 28 May 2026.

Sat 6/609:00
LTN
-
SEA
1 stop16h 10m
Multiple Airlines
Sun 14/619:10
SEA
-
LTN
1 stop12h 15m
Multiple Airlines
Deal found 27/5£559
Sun 21/618:10
LTN
-
SEA
3 stops47h 30m
Multiple Airlines
Wed 8/715:40
SEA
-
LTN
2 stops22h 45m
Multiple Airlines
Deal found 27/5£609
Fri 19/606:20
LTN
-
SEA
3 stops35h 20m
Multiple Airlines
Sat 11/715:40
SEA
-
LTN
2 stops23h 20m
Multiple Airlines
Deal found 27/5£616
Tue 1/905:40
LTN
-
SEA
3 stops23h 27m
Multiple Airlines
Tue 22/914:10
SEA
-
LTN
2 stops24h 30m
Multiple Airlines
Deal found 25/5£623
Tue 15/920:35
LTN
-
SEA
2 stops27h 05m
Multiple Airlines
Tue 29/918:05
SEA
-
LTN
2 stops17h 50m
Multiple Airlines
Deal found 25/5£633
Tue 23/609:40
LTN
-
SEA
1 stop15h 30m
Multiple Airlines
Tue 30/619:10
SEA
-
LTN
1 stop19h 00m
Multiple Airlines
Deal found 24/5£641
Tue 9/609:40
LTN
-
SEA
3 stops41h 05m
Multiple Airlines
Mon 14/919:00
SEA
-
LTN
2 stops19h 05m
Multiple Airlines
Deal found 23/5£642
Sun 21/609:00
LTN
-
SEA
1 stop16h 10m
Multiple Airlines
Sun 28/619:10
SEA
-
LTN
1 stop18h 30m
Multiple Airlines
Deal found 24/5£645
Thu 11/607:55
LTN
-
SEA
2 stops33h 45m
Multiple Airlines
Thu 9/715:40
SEA
-
LTN
2 stops23h 05m
Multiple Airlines
Deal found 25/5£648
Tue 2/609:40
LTN
-
SEA
1 stop15h 30m
Multiple Airlines
Thu 11/619:10
SEA
-
LTN
1 stop20h 15m
Multiple Airlines
Deal found 23/5£651
Fri 5/606:20
LTN
-
SEA
1 stop18h 50m
Multiple Airlines
Sun 14/619:10
SEA
-
LTN
1 stop18h 30m
Multiple Airlines
Deal found 27/5£652
Thu 11/609:25
LTN
-
SEA
1 stop15h 45m
Multiple Airlines
Tue 23/619:10
SEA
-
LTN
1 stop12h 20m
Multiple Airlines
Deal found 25/5£655

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 28 May 2026.

Round-trip from

£554

One-way from

£289

Popular in

July

Cheapest in

February

Average price

£555
19/6-29/6
  • 19/6-29/6
  • 2 total stops
  • 31h 25m total
  • London to Washington
Search Deals
26/8
  • 26/8
  • 3 total stops
  • 53h 55m total
  • London to Washington
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£50 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 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 28 May 2026.
Use the filters below to find and compare flights from London Luton Airport to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Sun 21/6

18:10-09:40

3 stops47h 30m

Seattle/Tacoma Intl

Wed 8/7

15:40-22:25

2 stops22h 45m

£609
Fastest return journey

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 10/6

06:15-17:10

1 stop18h 55m

Seattle/Tacoma Intl

Tue 23/6

19:10-15:30

1 stop12h 20m

£656

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Thu 11/6

07:55-09:40

2 stops33h 45m

Seattle/Tacoma Intl

Sun 14/6

13:30-20:30

3 stops23h 00m

£686

LondonPortland

LTN - PDX

LTNPDX

London Luton

Thu 9/7

07:05-13:50

3 stops38h 45m

Portland

Thu 23/7

15:30-23:25

2 stops23h 55m

£693

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Thu 11/6

07:00-16:00

2 stops17h 00m

Seattle/Tacoma Intl

Wed 24/6

17:40-19:55

2 stops18h 15m

£703

LondonPortland

LTN - PDX

LTNPDX

London Luton

Wed 8/7

06:15-13:50

3 stops39h 35m

Portland

Wed 22/7

19:05-22:35

2 stops19h 30m

£704

LondonPortland

LTN - PDX

LTNPDX

London Luton

Fri 11/9

06:20-09:31

3 stops35h 11m

Portland

Thu 17/9

10:10-12:25

2 stops18h 15m

£741

LondonPortland

LTN - PDX

LTNPDX

London Luton

Mon 27/7

08:50-13:50

3 stops37h 00m

Portland

Wed 29/7

14:30-22:55

2 stops24h 25m

£760

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 18/8

07:55-10:07

3 stops34h 12m

Seattle/Tacoma Intl

Tue 25/8

19:00-18:30

2 stops15h 30m

£766

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 24/6

06:10-20:40

2 stops22h 30m

Seattle/Tacoma Intl

Wed 1/7

15:40-22:35

2 stops22h 55m

£777

Flights are sorted by cheapest return flights first.

Deals found on 24/5

Showing 1-10 of 42 resultsSorted by cheapest first
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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

See prices for flight routes from nearby airports that may be better suited for you.
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