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$365 Find Cheap Flights to Watertown - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$399
Typical prices: $333-$615
American Airlines
Tue 11/6Wed 11/14
PHX - ART • 1 stop
Cheapest non-stop
$437
Typical prices: $477-$491
American Airlines
Wed 9/5Sun 9/9
PHL - ART • Non-stop
Nonstop flights
You can fly direct with American Airlines. Average duration is 1h 33m
FAQs
FAQs
Top airlines
Most flights • 11 per week
Best reviews • 7.1 score
Airline reviews
+1
Airline reviews
+1
When to travel
Cheapest • 28% price drop
Most popular
Good to know
+1
Good to know
+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights to Watertown

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals to Watertown

Fri, Nov 6 - Sat, Nov 14
American Airlines Logo
7:34 am - 5:21 pmPHX  Phoenix Sky Harbor Intl-ART Watertown
7h 47m1 stop Philadelphia
American Airlines Logo
6:00 am - 2:10 pmART  Watertown-PHX Phoenix Sky Harbor Intl
10h 10m1 stop Philadelphia
$399American Airlines
Fri, Nov 6 - Sat, Nov 14
American Airlines Logo
7:34 am - 5:21 pmPHX  Phoenix Sky Harbor Intl-ART Watertown
7h 47m1 stop Philadelphia
American Airlines Logo
6:00 am - 4:12 pmART  Watertown-PHX Phoenix Sky Harbor Intl
12h 12m2 stops Philadelphia Dallas/Fort Worth
$405American Airlines
Sat, Sep 5 - Wed, Sep 9
American Airlines Logo
6:15 pm - 7:47 pmPHL  Philadelphia-ART Watertown
1h 32mnonstop
American Airlines Logo
4:18 pm - 5:46 pmART  Watertown-PHL Philadelphia
1h 28mnonstop
$437American Airlines
Thu, Oct 22 - Mon, Oct 26
American Airlines Logo
8:10 am - 10:27 pmJFK  New York John F Kennedy Intl-ART Watertown
14h 17m2 stops Boston Logan Intl Philadelphia
American Airlines Logo
6:00 am - 7:03 pmART  Watertown-JFK New York John F Kennedy Intl
13h 03m2 stops Philadelphia Boston Logan Intl
$443American Airlines
Fri, Sep 25 - Mon, Sep 28
American Airlines Logo
7:59 am - 10:50 pmJFK  New York John F Kennedy Intl-ART Watertown
14h 51m2 stops Boston Logan Intl Philadelphia
American Airlines Logo
6:00 am - 7:00 pmART  Watertown-JFK New York John F Kennedy Intl
13h 00m2 stops Philadelphia Boston Logan Intl
$445American Airlines
Fri, Sep 18 - Sun, Sep 20
American Airlines Logo
7:59 am - 10:50 pmJFK  New York John F Kennedy Intl-ART Watertown
14h 51m2 stops Boston Logan Intl Philadelphia
American Airlines Logo
6:00 am - 7:00 pmART  Watertown-JFK New York John F Kennedy Intl
13h 00m2 stops Philadelphia Boston Logan Intl
$447American Airlines
Tue, Sep 8 - Sat, Sep 12
American Airlines Logo
2:05 pm - 3:35 pmPHL  Philadelphia-ART Watertown
1h 30mnonstop
American Airlines Logo
4:18 pm - 5:46 pmART  Watertown-PHL Philadelphia
1h 28mnonstop
$463American Airlines
Wed, Sep 16 - Sat, Sep 19
American Airlines Logo
2:29 pm - 3:59 pmPHL  Philadelphia-ART Watertown
1h 30mnonstop
American Airlines Logo
4:18 pm - 5:46 pmART  Watertown-PHL Philadelphia
1h 28mnonstop
$463American Airlines
Sat, Sep 19 - Tue, Sep 22
Alaska Airlines Logo
9:33 am - 10:50 pmSEA  Seattle/Tacoma Intl-ART Watertown
10h 17m1 stop Philadelphia
Alaska Airlines Logo
4:24 pm - 9:51 pmART  Watertown-SEA Seattle/Tacoma Intl
8h 27m1 stop Philadelphia
$842Alaska Airlines
Mon, Sep 7 - Fri, Sep 11
Alaska Airlines Logo
9:40 am - 10:55 pmSEA  Seattle/Tacoma Intl-ART Watertown
10h 15m1 stop Philadelphia
Alaska Airlines Logo
4:18 pm - 9:51 pmART  Watertown-SEA Seattle/Tacoma Intl
8h 33m1 stop Philadelphia
$1,293Alaska Airlines
Booking Insights

Price, demand and travel trends for United States to Watertown flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from the United States to Watertown with more confidence.

What is the cheapest flight to Watertown?

Phoenix Sky Harbor Intl Airport to Watertown is the cheapest route at $399 round-trip, found in the past 5 days on KAYAK. Philadelphia to Watertown is the most popular connection with round-trip deals from $437.

How much is a flight to Watertown?

A round-trip flight to Watertown costs $453 on average, based on data over the past 12 months on KAYAK. Round-trip fares from Philadelphia average $491.

What is the cheapest day to fly to Watertown?

Tuesday is the cheapest day to fly to Watertown at $393 round-trip on average over the past 12 months on KAYAK. Sunday is the most expensive at $664.

What is the cheapest month to fly to Watertown?

  • September is the cheapest month to fly to Watertown with an average price of $328 round-trip.
  • July ($604) and June ($592) are the most expensive.
  • Based on KAYAK data over the past 12 months.

What is the cheapest time of day to fly to Watertown?

Afternoon flights to Watertown are the cheapest at $426 round-trip on average. Night flights are the most expensive at $535.

Key details for flights to Watertown

Low season

January

Cheapest flight

$365
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly and prices are also 28% lower on average.
Flight from Philadelphia to Watertown

When to book flights to Watertown

Are your dates flexible? Find out the best times to travel to Watertown based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your questions about flights to Watertown, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Where can I rent a car after landing at Watertown International Airport (ART)?

    Consider renting a car at Watertown International Airport (ART) upon landing in Watertown. You will be served by several car rental agencies such as Enterprise, Hertz, and Budget. The car rental agencies’ offices are located inside the terminal building near the post-security station.

  • Do SEA and ART accept passengers with pets?

    If you want to fly to Watertown with your four-legged buddy via SEA and ART, you need not worry. These flights highly recognize pets and service dogs by setting aside several pet relief areas to comfort the animals. SEA has five pet relief areas located outside in pre-security areas and one inside Terminal 2 West, while ART has pet relief areas at the end of the terminal building on the lower level.

  • How can I connect from Watertown International Airport to the city center?

    It would take you approximately 12 min to connect from the airport to the city center. You can consider using car rentals at the airport or a taxi outside the main terminal close to the baggage claim area. You can consider using the train or ART Airport Bus to drop you at the city center for public transport.

  • Are SEA and ART accessible to persons with reduced mobility?

    If traveling with someone who needs wheelchair assistance or has limited mobility, you shouldn't be concerned when booking flights from the USA to Watertown. At SEA, staff members are available to transport PRMs in wheelchairs from taxi drop-off spots to check-in counters. American Airlines, the only airline operating this flight, has personnel stationed at various places in both airlines to help persons with reduced arrival.

  • What is the difference between the most popular and the most frequent airline at Watertown?

    American Airlines operates the most flights from the United States to Watertown at 11 per week, and for this route American Airlines is also the airline most often selected by KAYAK users searching for flights from the United States to Watertown. The two are often different because flight volume reflects an airline's schedule, while popularity reflects traveler choice.

  • How long is a nonstop flight to Watertown?

    Nonstop flights to Watertown are available from Philadelphia, with a flight time of about 1h 27m.

  • Where can I fly from to get the cheapest fares to Watertown?

    Based on fares booked in the past 5 days, the cheapest flights to Watertown are from:
    • Phoenix, from $399 round-trip
    • New York, from $443 round-trip

  • How many flights serve Watertown?

    Watertown receives 2 flights per day and 11 per week from across the world. Philadelphia has the most flights to Watertown, with 11 weekly flights.

  • How do I know if a flight to Watertown is a good deal?

    A good deal on a flight to Watertown is around $333 round-trip. This fare is in the lowest 25% of round-trip prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

  • Which airlines should I consider for flights to Watertown?

Your guide to booking Watertown flights

From booking to airport arrival, find tips to help you plan your flight with more confidence.
  • For flights to Watertown, recent KAYAK data shows that stronger deals tend to land around $333 round-trip. If you see a fare below that threshold, it's a strong deal – book before the price climbs back up.
  • If you can choose when to go, time your trip to Watertown around September. Round-trip fares historically average $328 that month – typically the cheapest month to travel based on the last 12 months.
  • Before you book:

    • Check the route's typical price range so you can spot a deal.
    • Confirm baggage fees and seat-selection costs on budget carriers.
    • Verify whether you need any travel documents beyond ID.
    • Pick a departure airport, since your nearest may not be the cheapest origin.
  • Shift your departure to noon to save up to $109 per round-trip. Noon flights to Watertown average $426 compared to $535 for evening flights. See the time-of-day chart above for the full breakdown.
  • Bag allowances vary by airline, fare type, cabin class and route. On flights to Watertown, some airlines may include bags at no extra cost. For example, American Airlines includes a cabin bag in Economy Class. Always check the fare details before booking, since bag policies can change by ticket type.
  • Flights from the USA to Watertown depart from Philadelphia International Airport (PHL), Raleigh-Durham International Airport (RDU), Seattle-Tacoma International Airport (SEA), George Bush Intercontinental Airport (IAH), and George Bush Intercontinental Airport (MCO). Seattle-Tacoma International airport (SEA) has the majority of passengers flying to Watertown due to its highest frequency of flights to Watertown.
  • It would take approximately 14 minutes to connect from the Seattle city center to Seattle-Tacoma International Airport (SEA). If you are in the city center and need to connect to SEA for a flight, consider using a cab or a rental car if you are in a rush. You can consider using the Light Rail from the train station for public means.
  • Flights from Seattle-Tacoma International Airport (SEA) to Watertown consider persons with reduced mobility. If you are flying with a person with reduced mobility, you are reminded to contact your airline 48 hours before the flight to request wheelchair assistance within the airport. The special assistance will help you offload baggage from your car and board a plane.
  • If you have the earliest flight, consider staying in one of the hotels close to Seattle-Tacoma International Airport. The nearby hotel is a mile from the airport, and you can enjoy a complimentary airport shuttle to connect to the airport in time before the flight.
  • Consider using Watertown International Airport (ART)as your arrival station once you land at Watertown. This airport is located west of Watertown and in the town of Hounsfield. Travelers arriving late at Watertown International Airport are requested to book a room in one of the close hotels at the airport, which have a free shuttle to pick them up upon arrival.

Reviews of the top airline flying to Watertown

 
Need help choosing which airline to fly with to Watertown? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
American AirlinesOverall score based on 11993 reviews
7.2Comfort
7.9Crew
7.5Boarding
6.4Food
6.8Entertainment
Airline reviews

Good flight, regional jet so old and seats could use an upgrade

10.0 ExcellentKevin, Aug 2026
Read more American Airlines reviews

Good flight, regional jet so old and seats could use an upgrade

Flying on this airline is nothing short of a full blown circus clown show. On a recent return from my mother’s funeral, my only available choice from IND to PWM was American, which I hesitantly booked as I rarely fly them for many of the following reasons and never will again. I was booked IND-PHL-PWM totaling about six hours. The flight was cancelled due to NE weather. They rebooked me on a two stop flight IND-DFW (Yes DALLAS)-PHL-PWM, still all on the same day. After arriving in DFW, they continually delayed the DFW-PHL flight due to maintenance issues on the arriving flight. Finally it was delayed to the point that my PHL-PWM connection was no longer possible. They then rebooked me thru LGA with the short flight the NEXT DAY to PWM and offered to put me up for the night in NYC (or so I assumed). The flight DFW-LGA was then delayed so much that I asked to be put in an earlier flight with a lessor delay. Throughout this day chats with their AI assistant were useless as were subsequent chats supposedly with a real person(?). Only one customer service agent in DFW was actually helpful and appeared to care. Upon arrival at LGA post midnight, they issued me car and hotel vouchers in Trenton NEW JERSEY at a very old Howard Johnsons ONE HALF HOUR from LGA. The hotel was an $85, 1.5 rated hotel in a very sketchy area of NJ that I would have never voluntarily booked. As I prepared to catch the car back to LGA the next morning I received a text that my flight was cancelled. TWICE IN TWO DAYS. I went to LGA hoping to have AA book me on an earlier Delta flight. The full service line was at least 200 people deep, so I tried to reach a real person agent by phone. After 1/2 hours on hold I gave up and waited for my later LGA-PWM flight. It actually started boarding on-time, but only shortly after announced a maintenance hold. We were told it was nothing serious, just an adjustment to the Captains seat. Only one update was given while we waited 1.5+ hours for a “SEAT ADJUSTMENT”. Can’t forget to mention that on all of these planes the WiFi only worked on two. During that time at least three others flights in my area announced that they were overbooked and were taking volunteers before bumping people. Another flight to ORD announced a gate change and less than five minutes after announced that they were really not changing and announced for everyone to return to that gate. Can’t forget to mention that on all of these planes the WiFi only worked on two.🤡🤡

Boarding was horrendous! Took absolutely forever… and the delay from the broken coffee pot was really kind of ridiculous

gate crew was courteous and helpful, flight attendant was nice and friendly once we got going. But we pushed off from the gate relatively on time, then sat there like 10 ft away, for an hour, with no announcement or explanation. Taxiing then took forever, and I get that there was runway congestion, but would be helpful to keep us posted on whats going on

Uncomfortable seats, spotty WiFi, only Biscoff for snack (no one likes those).

boarding announcements werent clear/loud. Tired of those cookies. Of the 3 staff/attendants, 1 was good and the other 2 were mediocre.

They cancelled our flight two times after rebooking us for a later flight. We never got on the plane. We found another solution by driving.

Long delays to board due to mechanical issues with plane.

Flight canceled because they didn’t have enough flight attendants. No refunds or credits for future flights

Boarding was awful - no order, people cutting in line, completely chaotic Planes are very old and uncomfortable. Noticeable difference between Delta and United on same route.

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