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$986+ Cheap flights from Watertown, NY (ART) to Heathrow (LHR)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/27. Fares are subject to change and may not be available on all flights or dates of travel.
ART — LHR
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Cheap flight deals from Watertown to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Watertown (ART) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$986
(American Airlines)
Provider with most accurate pricing for Watertown-London Heathrow flight deals.
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Provider most trusted by Cheapflights users for Watertown-London Heathrow flights.
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From Watertown to London Heathrow
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Best flights from Watertown to Heathrow
Discover carefully curated flight deals from Watertown to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 29, 2025.

This American Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/274:37 pmART - LHR
1 stop11h 13mAmerican Airlines
Tue 3/317:45 amLHR - ART
2 stops36h 10mAmerican Airlines
Deal found 10/27$986

Cheapflights Fare Finder

 
Customize your flight search to find flights from Watertown to Heathrow 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 2,558,603 searches. Data last updated October 29, 2025.
Use the filters below to find and compare flights from Watertown to London Heathrow Airport that are best for you.

Fly from

Watertown

Fly to

Heathrow

Route

Depart

Return

Price

WatertownLondon

ART - LHR

ARTLHR

Watertown

Fri 3/27

4:37 pm-7:50 am

1 stop11h 13m

London Heathrow

Tue 3/31

7:45 am-2:55 pm

2 stops36h 10m

$986

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

  • Most accurate provider: When it comes to deals on Watertown, New York-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Watertown, New York-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Watertown, New York-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Watertown, New York-London Heathrow Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Watertown, New York-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Watertown to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Watertown with our price prediction graph.
Estimated round-trip 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 Watertown to London Heathrow Airport

What is the cheapest month to book a flight from Watertown, New York to London Heathrow Airport?

Currently, December is the cheapest month in which you can book a flight from Watertown, New York to London Heathrow Airport (average of $328). Flying from Watertown, New York to London Heathrow Airport in June is currently the most expensive (average of $813). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated October 29, 2025.
Peruse reviews from past customers who have flown with American Airlines from Watertown to London Heathrow Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,030 reviews

Boarding

7.5

Overall

7.2

Comfort

7.2

Crew

8.0

Entertainment

6.9

Food

6.4

Reviews

1 / 20
10.0
Excellent

Leonardo,May 2025

JFK - BGI

Good airline and so far i give them 8 out of 10.
American Airlines
7.2
Good
11,030 reviews
American Airlines
7.2
Good
11,030 reviews

Boarding

7.5

Overall

7.2

Comfort

7.2

Crew

8.0

Entertainment

6.9

Food

6.4

Reviews

1 / 20
10.0
Excellent

Leonardo,May 2025

JFK - BGI

Good airline and so far i give them 8 out of 10.

Related info for your journey

Find useful and relevant information for your journey from Watertown to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Watertown to London Heathrow?

    Watertown (ART), located 5.6 mi from the city center, is the airport you fly out of when you book flights from Watertown to London Heathrow. 1 airline have flights from Watertown to London Heathrow on a regular basis. Booking flights from Watertown to London Heathrow should not be difficult; the airport handles an average of 0 outbound flights to London Heathrow per day.

  • How long is the flight from Watertown, New York to London Heathrow Airport?

    Departing from Watertown, New York to London Heathrow Airport will take you 11h 13m. Watertown, New York and London Heathrow Airport are separated by a distance of 3388 mi.

  • Can I find deals for flights from Watertown to Heathrow that include hotel bookings?

    Yes. In addition to deals on Watertown to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Watertown to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Watertown to Heathrow.

  • Can I find deals for business class flights from Watertown to Heathrow?

    Yes. Cheapflights offers flight deals from Watertown to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Watertown, New York to London Heathrow Airport?

    Currently, December is the cheapest month in which you can book a flight from Watertown, New York to London Heathrow Airport (average of $328). Flying from Watertown, New York to London Heathrow Airport in June is currently the most expensive (average of $813). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone

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Top airline flying from Watertown to Heathrow

Discover the top airline that operate flights from Watertown to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$804Average$853FlexibilityNo cancel feeOn-time71%

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