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Cheap flights from London Heathrow Airport to Watertown from £727

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Watertown departing on 16/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Find the cheapest flights from London Heathrow Airport to Watertown

Cheap return flights

Enter your travel dates to find the best prices.
American Airlines Logo
08:25 - 22:20LHR-ART
17h 55m2 stops
American Airlines Logo
06:22 - 08:40ART-LHR
22h 18m2 stops
£727American Airlines
Find Deal
Mon, 16 Mar - Thu, 19 Mar
American Airlines Logo
19:15 - 22:20LHR-ART
31h 05m2 stops
American Airlines Logo
06:22 - 08:40ART-LHR
22h 18m2 stops
£731American Airlines
Find Deal
Sun, 15 Mar - Thu, 19 Mar
American Airlines Logo
08:25 - 22:23LHR-ART
18h 58m2 stops
American Airlines Logo
06:19 - 05:50ART-LHR
18h 31m2 stops
£732American Airlines
Find Deal
Mon, 16 Feb - Thu, 19 Feb
American Airlines Logo
13:10 - 22:20LHR-ART
13h 10m1 stop
American Airlines Logo
06:22 - 08:40ART-LHR
22h 18m2 stops
£742American Airlines
Find Deal
Mon, 16 Mar - Thu, 19 Mar
American Airlines Logo
17:05 - 22:23LHR-ART
34h 18m2 stops
American Airlines Logo
16:30 - 07:50ART-LHR
10h 20m1 stop
£747American Airlines
Find Deal
Mon, 16 Feb - Mon, 23 Feb
American Airlines Logo
20:35 - 22:23LHR-ART
30h 48m2 stops
American Airlines Logo
06:19 - 05:50ART-LHR
18h 31m2 stops
£751American Airlines
Find Deal
Sun, 15 Feb - Thu, 19 Feb
American Airlines Logo
19:15 - 22:20LHR-ART
31h 05m2 stops
American Airlines Logo
16:37 - 14:50ART-LHR
18h 13m2 stops
£765American Airlines
Find Deal
Sun, 15 Mar - Mon, 23 Mar
American Airlines Logo
19:15 - 22:20LHR-ART
31h 05m2 stops
American Airlines Logo
06:22 - 06:35ART-LHR
20h 13m1 stop
£768American Airlines
Find Deal
Sun, 15 Mar - Thu, 19 Mar
American Airlines Logo
10:05 - 22:20LHR-ART
16h 15m1 stop
American Airlines Logo
16:37 - 06:35ART-LHR
9h 58m1 stop
£786American Airlines
Find Deal
Mon, 16 Mar - Thu, 19 Mar
Multiple Airlines Logo
12:50 - 22:33LHR-ART
37h 43m2 stops
Multiple Airlines Logo
14:45 - 09:40ART-LHR
14h 55m2 stops
£1,982Multiple Airlines
Find Deal
Mon, 27 Oct - Fri, 31 Oct

American Airlines flights from London Heathrow Airport to Watertown, New York

Our best American Airlines deals on London Heathrow Airport to Watertown, New York flight tickets
American Airlines
16 Mar
LHR08:25London Heathrow
17h 55m
2 stops
ART22:20Watertown
19 Mar
ART06:22Watertown
22h 18m
2 stops
LHR08:40London Heathrow
£727
Find similar
American Airlines
15 Mar
LHR19:15London Heathrow
31h 05m
2 stops
ART22:20Watertown
19 Mar
ART06:22Watertown
22h 18m
2 stops
LHR08:40London Heathrow
£731
Find similar
American Airlines
16 Feb
LHR08:25London Heathrow
18h 58m
2 stops
ART22:23Watertown
19 Feb
ART06:19Watertown
18h 31m
2 stops
LHR05:50London Heathrow
£732
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to Watertown, New York 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 13 October 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Watertown, New York that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonWatertown

LHR - ART

LHRART

London Heathrow

Mon 16/3

08:25-22:20

2 stops17h 55m

Watertown

Thu 19/3

06:22-08:40

2 stops22h 18m

£727

LondonWatertown

LHR - ART

LHRART

London Heathrow

Sun 15/3

19:15-22:20

2 stops31h 05m

Watertown

Thu 19/3

06:22-08:40

2 stops22h 18m

£731

LondonWatertown

LHR - ART

LHRART

London Heathrow

Mon 16/2

08:25-22:23

2 stops18h 58m

Watertown

Thu 19/2

06:19-05:50

2 stops18h 31m

£732

LondonWatertown

LHR - ART

LHRART

London Heathrow

Mon 16/3

13:10-22:20

1 stop13h 10m

Watertown

Thu 19/3

06:22-08:40

2 stops22h 18m

£742

LondonWatertown

LHR - ART

LHRART

London Heathrow

Mon 16/2

17:05-22:23

2 stops34h 18m

Watertown

Mon 23/2

16:30-07:50

1 stop10h 20m

£747

LondonWatertown

LHR - ART

LHRART

London Heathrow

Sun 15/2

20:35-22:23

2 stops30h 48m

Watertown

Thu 19/2

06:19-05:50

2 stops18h 31m

£751

LondonWatertown

LHR - ART

LHRART

London Heathrow

Sun 15/3

19:15-22:20

2 stops31h 05m

Watertown

Mon 23/3

16:37-14:50

2 stops18h 13m

£765

LondonWatertown

LHR - ART

LHRART

London Heathrow

Sun 15/3

19:15-22:20

2 stops31h 05m

Watertown

Thu 19/3

06:22-06:35

1 stop20h 13m

£768

LondonWatertown

LHR - ART

LHRART

London Heathrow

Mon 16/3

10:05-22:20

1 stop16h 15m

Watertown

Thu 19/3

16:37-06:35

1 stop9h 58m

£786

LondonWatertown

LHR - ART

LHRART

London Heathrow

Mon 27/10

12:50-22:33

2 stops37h 43m

Watertown

Fri 31/10

14:45-09:40

2 stops14h 55m

£1,982

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to Watertown from

How to get the cheapest flight ticket from London Heathrow Airport to Watertown, New York

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Watertown, New York?

The cheapest day to depart from London Heathrow Airport to Watertown, New York is on a Thursday when prices can be found for as low as £663. The most expensive day to fly to Watertown, New York is Friday, with ticket prices averaging around £797.

What is the cheapest time of day to depart on your flight to Watertown, New York?

Flying to Watertown, New York from London Heathrow Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as £725 when looking at flights departing in the morning. In contrast, the most expensive time of day to depart to Watertown, New York is at midday when prices are around £768.

When to book flights from London Heathrow Airport to Watertown, New York

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Watertown, New York according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London Heathrow Airport to Watertown, New York (LHR to ART) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Watertown, New York

Direct flights

None
There are no direct flights from London Heathrow Airport to Watertown, New York. There are no popular flight routes from London Heathrow Airport to Watertown, New York.
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  • How far is London Heathrow to Watertown by plane?

    A flight from London Heathrow to Watertown will travel around 3384.8 mi. In terms of flight time, this usually takes a little over 13h 10m.

  • When did momondo last update prices for flights from London Heathrow Airport to Watertown Airport?

    Prices for flights from London Heathrow Airport to Watertown Airport refresh daily.

  • How old do you have to be to fly from London Heathrow Airport to Watertown Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Watertown Airport.

  • What documentation or ID do you need to fly to Watertown Airport?

    The travel and health documents you'll need for your trip to Watertown Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Watertown Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Watertown. momondo saves you time and could save you money on your trip.

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

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

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

Once you have performed a search for London to Watertown flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of London to Watertown flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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