Cheap flights from London Luton Airport to Washington from £326

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Luton Airport to Washington departing on 23/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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Find the cheapest flights from London Luton Airport to Washington

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
17:10 - 13:45
LTN
-
SEA
28h 35m
3 stops
Multiple Airlines Logo
15:55 - 21:40
SEA
-
LTN
21h 45m
3 stops
£591Multiple Airlines
Fri, 2 Oct - Sun, 11 Oct
Multiple Airlines Logo
06:20 - 17:55
LTN
-
SEA
19h 35m
2 stops
Multiple Airlines Logo
15:40 - 21:40
SEA
-
LTN
22h 00m
2 stops
£608Multiple Airlines
Fri, 2 Oct - Sun, 11 Oct
Multiple Airlines Logo
08:00 - 17:55
LTN
-
SEA
17h 55m
2 stops
Multiple Airlines Logo
15:40 - 17:00
SEA
-
LTN
17h 20m
2 stops
£622Multiple Airlines
Sat, 5 Sep - Sat, 12 Sep
Multiple Airlines Logo
18:05 - 09:40
LTN
-
SEA
47h 35m
3 stops
Multiple Airlines Logo
19:00 - 21:00
SEA
-
LTN
18h 00m
2 stops
£623Multiple Airlines
Mon, 7 Sep - Sat, 19 Sep
Multiple Airlines Logo
18:05 - 09:40
LTN
-
SEA
47h 35m
3 stops
Multiple Airlines Logo
19:00 - 22:15
SEA
-
LTN
19h 15m
2 stops
£625Multiple Airlines
Mon, 7 Sep - Wed, 16 Sep
Multiple Airlines Logo
06:15 - 20:40
LTN
-
SEA
22h 25m
2 stops
Multiple Airlines Logo
15:40 - 15:30
SEA
-
LTN
15h 50m
2 stops
£634Multiple Airlines
Wed, 8 Jul - Tue, 21 Jul
Multiple Airlines Logo
08:15 - 11:45
LTN
-
SEA
35h 30m
2 stops
Multiple Airlines Logo
15:40 - 22:50
SEA
-
LTN
23h 10m
2 stops
£635Multiple Airlines
Mon, 13 Jul - Mon, 20 Jul
Multiple Airlines Logo
09:40 - 18:45
LTN
-
SEA
17h 05m
2 stops
Multiple Airlines Logo
15:40 - 18:25
SEA
-
LTN
18h 45m
2 stops
£644Multiple Airlines
Tue, 7 Jul - Tue, 14 Jul
Multiple Airlines Logo
13:10 - 18:20
LTN
-
SEA
13h 10m
1 stop
Multiple Airlines Logo
20:05 - 19:00
SEA
-
LTN
14h 55m
1 stop
£646Multiple Airlines
Sun, 1 Nov - Sun, 15 Nov
Multiple Airlines Logo
18:05 - 09:40
LTN
-
SEA
47h 35m
3 stops
Multiple Airlines Logo
15:40 - 18:25
SEA
-
LTN
18h 45m
2 stops
£647Multiple Airlines
Mon, 6 Jul - Thu, 30 Jul

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momondo Fare Finder

 
Customise your flight search to find flights from London Luton Airport to State of 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, momondo users made 279,928 searches. Data last updated 12 June 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

Fri 2/10

17:10-13:45

3 stops28h 35m

Seattle/Tacoma Intl

Sun 11/10

15:55-21:40

3 stops21h 45m

£591

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Fri 2/10

06:20-17:55

2 stops19h 35m

Seattle/Tacoma Intl

Sun 11/10

15:40-21:40

2 stops22h 00m

£608

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Sat 5/9

08:00-17:55

2 stops17h 55m

Seattle/Tacoma Intl

Sat 12/9

15:40-17:00

2 stops17h 20m

£622

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Mon 7/9

18:05-09:40

3 stops47h 35m

Seattle/Tacoma Intl

Sat 19/9

19:00-21:00

2 stops18h 00m

£623

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Mon 7/9

18:05-09:40

3 stops47h 35m

Seattle/Tacoma Intl

Wed 16/9

19:00-22:15

2 stops19h 15m

£625

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Wed 8/7

06:15-20:40

2 stops22h 25m

Seattle/Tacoma Intl

Tue 21/7

15:40-15:30

2 stops15h 50m

£634

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Mon 13/7

08:15-11:45

2 stops35h 30m

Seattle/Tacoma Intl

Mon 20/7

15:40-22:50

2 stops23h 10m

£635

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Tue 7/7

09:40-18:45

2 stops17h 05m

Seattle/Tacoma Intl

Tue 14/7

15:40-18:25

2 stops18h 45m

£644
Fastest return journey

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Sun 1/11

13:10-18:20

1 stop13h 10m

Seattle/Tacoma Intl

Sun 15/11

20:05-19:00

1 stop14h 55m

£646

LondonSeattle

LTN - SEA

LTNSEA

London Luton

Mon 6/7

18:05-09:40

3 stops47h 35m

Seattle/Tacoma Intl

Thu 30/7

15:40-18:25

2 stops18h 45m

£647

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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Cheap London Luton Airport to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Luton Airport to State of Washington

Fastest flight time

13h 30m

Direct flights

None
The fastest flight from London Luton Airport to State of Washington takes 13h 30m
There are no direct flights from London Luton Airport to State of Washington. There are no popular flight routes from London Luton Airport to State of Washington.

Frequently asked questions about flying from London Luton Airport to Washington

  • When did momondo last update prices for flights from London Luton Airport to Washington?

    Prices for flights from London Luton Airport to Washington refresh daily.

  • How old do you have to be to fly from London Luton Airport to Washington?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Luton Airport to Washington.

  • What documentation or ID do you need to fly to Washington?

    The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Frequently asked questions about flying from London Luton Airport to Washington

  • How do I get Price Alerts for flights from London Luton Airport to State of Washington?

    Confirm your travel details to search for the latest offers for flights from London Luton Airport to State of Washington. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from London Luton Airport to State of Washington with momondo?

    By using tools like our “Price Calendar”, you can see the best days for return flights on your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Why use momondo?

Why should I use momondo to find a flight deal from London to Washington?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Washington . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from London to Washington with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Washington from London with this policy.

How can momondo help me find flights from London to Washington?

Once all potential London to Washington flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from London to Washington right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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1 adult
Sun 12/7
Sun 19/7

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