$246+ Cheap flights from Boston to Watertown, NY (BOS - ART)
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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — ART
Sep 20 — Sep 271
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Boston to Watertown with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Boston to Watertown
Cheapest
Best
Last-minute
Cheapest flights from Boston to WatertownExplore the most affordable flight options available from Boston to Watertown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2026.
Explore the most affordable flight options available from Boston to Watertown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 21, 2026.
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 9/1611:12 am -
1 stop4h 47m
Wed 9/234:24 pm -
1 stop5h 25m
Deal found 8/17![American Airlines logo]()
$246
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Tue 9/19:00 am -
1 stop5h 45m
Sat 9/56:00 am -
1 stop4h 12m
Deal found 8/17![American Airlines logo]()
$296
This American Airlines deal was found by Cheapflights users on 8/19. 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.
Wed 11/2511:08 am -
1 stop6h 17m
Fri 11/276:00 am -
1 stop6h 20m
Deal found 8/19![American Airlines logo]()
$361
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Sat 10/1012:55 pm -
1 stop4h 56m
Mon 10/195:25 pm -
1 stop6h 14m
Deal found 8/17![American Airlines logo]()
$382
This American Airlines deal was found by Cheapflights users on 8/19. 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.
Tue 11/2411:08 am -
1 stop6h 17m
Fri 11/275:46 pm -
1 stop5h 27m
Deal found 8/19![American Airlines logo]()
$472
This American Airlines deal was found by Cheapflights users on 8/20. 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 9/411:04 am -
1 stop4h 31m
Tue 9/84:00 pm -
2 stops7h 59m
Deal found 8/20![American Airlines logo]()
$577
This American Airlines deal was found by Cheapflights users on 8/19. 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.
Wed 11/2511:08 am -
1 stop6h 17m
Sat 11/286:00 am -
1 stop4h 20m
Deal found 8/19![American Airlines logo]()
$591
This American Airlines deal was found by Cheapflights users on 8/19. 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.
Tue 11/2411:08 am -
1 stop6h 17m
Sat 11/285:46 pm -
1 stop3h 49m
Deal found 8/19![American Airlines logo]()
$702
This American Airlines deal was found by Cheapflights users on 8/19. 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.
Wed 11/2511:08 am -
1 stop6h 17m
Sun 11/295:46 pm -
1 stop3h 49m
Deal found 8/19![American Airlines logo]()
$738
Best flights from Boston to WatertownDiscover carefully curated flight deals from Boston to Watertown that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 21, 2026.
Discover carefully curated flight deals from Boston to Watertown that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 21, 2026.
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 9/1611:12 am -
1 stop4h 47m
Wed 9/234:24 pm -
1 stop5h 25m
Deal found 8/17![American Airlines logo]()
$246
This American Airlines deal was found by Cheapflights users on 8/20. 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 9/49:32 am -
1 stop6h 03m
Tue 9/84:00 pm -
1 stop6h 50m
Deal found 8/20![American Airlines logo]()
$296
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Sat 10/1012:55 pm -
1 stop4h 56m
Mon 10/195:25 pm -
1 stop6h 14m
Deal found 8/17![American Airlines logo]()
$382
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Tue 9/13:20 pm -
1 stop31h 35m
Sat 9/56:00 am -
2 stops16h 26m
Deal found 8/17![American Airlines logo]()
$692
Last-minute flights from Boston to WatertownDiscover last-minute flight deals from Boston to Watertown. Data last updated August 21, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Watertown. Data last updated August 21, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Tue 9/19:00 am -
1 stop5h 45m
Sat 9/56:00 am -
1 stop4h 12m
Deal found 8/17![American Airlines logo]()
$296
This American Airlines deal was found by Cheapflights users on 8/20. 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 9/411:04 am -
1 stop4h 31m
Tue 9/84:00 pm -
2 stops7h 59m
Deal found 8/20![American Airlines logo]()
$577
This American Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 9/1611:12 am -
1 stop4h 47m
Wed 9/234:24 pm -
1 stop5h 25m
Deal found 8/17![American Airlines logo]()
$246
Find flight deals from Boston to Watertown
Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Watertown (ART). 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 August 21, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $246 (American Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Boston to Watertown 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 7,457,451 searches. Data last updated August 21, 2026.
Use the filters below to find and compare flights from Boston to Watertown that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
BostonWatertown
BOS Boston Logan Intl - ART Watertown
BOSART
Boston Logan Intl
Wed 9/16
11:12 am-3:59 pm
1 stop4h 47m
Watertown
Wed 9/23
4:24 pm-9:49 pm
1 stop5h 25m
$246
BostonWatertown
BOS Boston Logan Intl - ART Watertown
BOSART
Boston Logan Intl
Fri 9/4
9:32 am-3:35 pm
1 stop6h 03m
Watertown
Tue 9/8
4:00 pm-10:50 pm
1 stop6h 50m
$296
BostonWatertown
BOS Boston Logan Intl - ART Watertown
BOSART
Boston Logan Intl
Sat 10/10
12:55 pm-5:51 pm
1 stop4h 56m
Watertown
Mon 10/19
5:25 pm-11:39 pm
1 stop6h 14m
$382
BostonWatertown
BOS Boston Logan Intl - ART Watertown
BOSART
Boston Logan Intl
Tue 9/1
3:20 pm-10:55 pm
1 stop31h 35m
Watertown
Sat 9/5
6:00 am-10:26 pm
2 stops16h 26m
$692
Sorted by cheapest first
Compare providers for flights from Boston to Watertown
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Watertown in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Boston-Watertown, New York flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Watertown, New York flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Watertown, New York flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boston-Watertown, New York 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 Boston-Watertown, New York 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 Boston to Watertown
Have a flexible travel schedule? Discover the best time to fly to Watertown from Boston with our price prediction graph.
BOS-ART
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.
Related info for your journey
Find useful and relevant information for your journey from Boston to Watertown. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Boston
Popular flights