ART - SEA

$446 Find Cheap Flights from Watertown to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Watertown to Seattle departing on 4/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Watertown to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Watertown to Seattle, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$555
American Airlines
Thu 4/2Mon 4/6
ART - SEA • 1 stop
Cheapest one-way
$446
American Airlines
Wed 4/15
ART - SEA • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Watertown and Seattle. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $354 (round-trip)
Shortest trip • 8h 54m (one-way)
Insights
Insights
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Insights
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We hope you love your trip to Seattle!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Watertown to Seattle (ART-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Watertown to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Watertown to Seattle

Thu, Apr 2 - Mon, Apr 6
American Airlines Logo
4:01 pm - 9:57 pm
ART
-
SEA
8h 56m
1 stop
American Airlines Logo
10:57 pm - 10:59 am
SEA
-
ART
9h 02m
1 stop
$555American Airlines
Thu, Apr 2 - Mon, Apr 6
American Airlines Logo
6:00 am - 7:12 pm
ART
-
SEA
16h 12m
2 stops
American Airlines Logo
10:57 pm - 10:59 am
SEA
-
ART
9h 02m
1 stop
$656American Airlines
Thu, Apr 2 - Sun, Apr 5
American Airlines Logo
6:00 am - 7:12 pm
ART
-
SEA
16h 12m
2 stops
American Airlines Logo
12:59 am - 3:19 pm
SEA
-
ART
11h 20m
2 stops
$763American Airlines
Booking Insights

KAYAK's insights & trends for Watertown to Seattle flights

Get data-powered insights and trends into flights from Watertown to Seattle to help you find the cheapest flights, the best time to fly and much more.

What is the most popular layover airport when flying from Watertown to Seattle?

Percentage of 1-stop round-trip flights from Watertown to Seattle chosen by KAYAK users via each layover airport in the last 12 months (only includes trips with the same layover airport on both legs).

Philadelphia (PHL) is the top choice – 94% of KAYAK users who clicked on 1-stop flights from Watertown to Seattle picked an itinerary connecting there.

What is the cheapest layover airport when flying from Watertown to Seattle?

Average round-trip price for 1-stop flights from Watertown to Seattle clicked by KAYAK users in the last 12 months (only includes trips with the same layover airport on both legs).

Flights via New York (JFK) offer the most affordable fares, with an average round-trip price of $354.

Which layover airport offers the shortest total travel time from Watertown to Seattle?

Shortest average total travel time for 1-stop one-way flights from Watertown to Seattle via different layover airports, based on KAYAK user data from the last 12 months.

Consider flying via New York (JFK) for the shortest journey. The average one-way travel time for flights connecting there is 8h 54m.

Which layover airport has the quickest connection when flying from Watertown to Seattle?

Average layover duration at different layover airports for 1-stop one-way flights from Watertown to Seattle, based on KAYAK user data from the last 12 months.

If you prefer a quick connection, New York (JFK) often has the shortest layovers from Watertown to Seattle, with an average of 0h 51m.

Good to know

Cheapest flight$446
Flight from Watertown to Seattle

When to book flights from Watertown to Seattle

Are your dates flexible? Find out the best times to travel from Watertown to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Watertown to Seattle

  • What is the cheapest flight from Watertown to Seattle?

    In the last 3 days, the lowest price for a flight from Watertown to Seattle was $446 for a one-way ticket and $555 for a round-trip.

  • Do I need a passport to fly between Watertown and Seattle?

    A passport is not required to fly from Watertown to Seattle.

  • Which airports will I be using when flying from Watertown to Seattle?

    Watertown and Seattle are both served by 1 main airport. You will leave Watertown from Watertown and will be arriving at Seattle/Tacoma Intl.

  • Which aircraft models fly most regularly from Watertown to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Watertown to Seattle?

    oneworld is the only airline alliance operating flights between Watertown and Seattle.

  • How does KAYAK find such low prices on flights from Watertown to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Watertown to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Watertown to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Watertown is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Watertown to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Watertown with another airline. Booking your flights between Watertown and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Watertown to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Watertown up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Watertown to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Watertown to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Watertown to Seattle? 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 11473 reviews
7.5Boarding
6.9Entertainment
7.9Crew
7.2Comfort
6.4Food
Airline reviews

There was no inflight service. Once we landed we were delayed to find a gate for an hour and a half which was 1/2 the total time in the air.

2.0 MediocreBrendan, Mar 2026
LGA - ORD
Read more American Airlines reviews

There was no inflight service. Once we landed we were delayed to find a gate for an hour and a half which was 1/2 the total time in the air.

Snow delayed boarding several times, which I understand happens. Issue I had was that after we did board, pilot told us we were going to roll out to be de-iced, then on our way. We were de-iced once, taxied to the tarmac and then stopped. Sat for another 30 minutes or so, the another de-icing. Then we rolled out to a parking spot, only to sit for another hour due to a traffic stop in DCA, which I'm confident they knew would happen before we boarded. Pilot gave no updates other than we had to hold, attendants did speak to the crew, but when asked, said the pilot would be updating us. We on the ground in the plane waiting for over 2 hours. They did communicate that bathrooms would be open, but no other news until we left. Would have been better to be up front about status.

It was good experience this time. The flight was on time.

The gate agent had a really bad attitude and refused to help me get on the standby list. She just handed me a card and said I needed to call a number. I asked her to help with the AA app on my phone and she just shrugged and said she didnt know. After a few phone calls, I eventually just went to a different gate agent on the other side of the terminal and got the help I needed.

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

One day, I do so hope for a gluten free snack! Seems like with the rest of the world FINALLY figuring out what gluten free is, American Airlines would too. Fingers crossed!!

I would like the crew to talk LESS over the PA and specifically about credit card offers. I am trying to work, sleep, watch a movie and the PA was booming about a credit card offer. Could we go back to the days when the customer was more important than selling a credit card?

My seat tv didn’t work the whole trip. And the seat space is too small despite being seated at the front.

On the plus side, crew was attentive, drinks were cold, and in-flight entertainment selection was better than some other airlines. On the negative aide, Plane was delayed almost an hour, either no announcements from the gate crew. Biscoff cookies are gross, appreciate airlines that give a choice. Also, crew had no personality or enthusiasm at all.

Tell the crew (when boarding) to yell at the imbeciles blocking us from walking up to scan. I promise everyone crowds around and half of us (most the time I’m group 4) have to push our way through. Your staff is awesome, the public - not so much-

Everything you need to know for your flight from Watertown to Seattle

Information on your arrival and departure airports