$282 Cheap Flights from Watertown (ATY) to San Diego (SAN)

View $282 flight on Mon, Nov 10, 2025Opens in a new window

Popular airlines from Watertown, SD (ATY-Watertown Regional) to San Diego Intl. Airport (SAN)

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Cheap Flights from Watertown to San Diego (ATY-SAN)

Prices were available within the past 7 days and start at $282 for one-way flights and $254 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Oct 28 - Tue, Nov 11
ATY
Watertown
SAN
San Diego
$254 Roundtrip, found 3 hours ago
$254
Roundtrip
found 3 hours ago
Select Delta flight, departing Tue, Oct 28 from Watertown to San Diego, returning Tue, Nov 11, priced at $254 found 3 hours ago
Delta
Tue, Oct 28 - Sat, Nov 15
ATY
Watertown
SAN
San Diego
$264 Roundtrip, found 3 hours ago
$264
Roundtrip
found 3 hours ago
Select Delta flight, departing Tue, Oct 28 from Watertown to San Diego, returning Sat, Nov 15, priced at $264 found 3 hours ago
Delta
Mon, Oct 27 - Sat, Nov 15
ATY
Watertown
SAN
San Diego
$269 Roundtrip, found 3 hours ago
$269
Roundtrip
found 3 hours ago
Select Delta flight, departing Mon, Oct 27 from Watertown to San Diego, returning Sat, Nov 15, priced at $269 found 3 hours ago
Delta
Tue, Aug 12 - Tue, Aug 26
ATY
Watertown
SAN
San Diego
$274 Roundtrip, found 4 days ago
$274
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Aug 12 from Watertown to San Diego, returning Tue, Aug 26, priced at $274 found 4 days ago
Delta
Sat, Aug 16 - Tue, Aug 26
ATY
Watertown
SAN
San Diego
$279 Roundtrip, found 4 days ago
$279
Roundtrip
found 4 days ago
Select Delta flight, departing Sat, Aug 16 from Watertown to San Diego, returning Tue, Aug 26, priced at $279 found 4 days ago
Delta
Wed, Oct 29 - Tue, Nov 11
ATY
Watertown
SAN
San Diego
$289 Roundtrip, found 3 hours ago
$289
Roundtrip
found 3 hours ago
Select Delta flight, departing Wed, Oct 29 from Watertown to San Diego, returning Tue, Nov 11, priced at $289 found 3 hours ago
Delta
Wed, Oct 29 - Sat, Nov 15
ATY
Watertown
SAN
San Diego
$294 Roundtrip, found 3 hours ago
$294
Roundtrip
found 3 hours ago
Select Delta flight, departing Wed, Oct 29 from Watertown to San Diego, returning Sat, Nov 15, priced at $294 found 3 hours ago
Delta
Wed, Oct 22 - Wed, Nov 5
ATY
Watertown
SAN
San Diego
$297 Roundtrip, found 3 hours ago
$297
Roundtrip
found 3 hours ago
Select Delta flight, departing Wed, Oct 22 from Watertown to San Diego, returning Wed, Nov 5, priced at $297 found 3 hours ago
Delta
Wed, Oct 22 - Tue, Nov 4
ATY
Watertown
SAN
San Diego
$302 Roundtrip, found 3 hours ago
$302
Roundtrip
found 3 hours ago
Select Delta flight, departing Wed, Oct 22 from Watertown to San Diego, returning Tue, Nov 4, priced at $302 found 3 hours ago
United
Thu, Sep 18 - Mon, Oct 6
ATY
Watertown
SAN
San Diego
$334 Roundtrip, found 3 hours ago
$334
Roundtrip
found 3 hours ago
Select United flight, departing Thu, Sep 18 from Watertown to San Diego, returning Mon, Oct 6, priced at $334 found 3 hours ago

Alternative airports near San Diego

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to San Diego Intl. SAN. Cheapest and Closest option available. Average driving time to city center is 5 minutes. Flights from $359
SAN
San Diego Intl.
CheapestClosest
Average driving time to city center5 min
Flights from $359
Flights from Watertown (ATY) to San Diego (SAN)
Origin airport
Watertown Regional
Destination airport
San Diego Intl.
Airlines serving
Delta, United
Roundtrip price
$253
Distance
1361 mi

Frequently asked questions

How much does a flight from Watertown Regional Airport (ATY) to San Diego Intl. Airport (SAN) cost?
Discover the latest flight deals from ATY to SAN by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from ATY to SAN?
The cheapest flights from ATY to SAN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from ATY to SAN?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from ATY to SAN. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Watertown Regional Airport (ATY) to San Diego Intl. Airport (SAN)?
Direct flights from Watertown Regional Airport (ATY) to San Diego Intl. Airport (SAN) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from ATY to SAN?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change depending on a range of factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Watertown Regional Airport (ATY) to San Diego Intl. Airport (SAN)?
To arrive at San Diego Intl. Airport (SAN) on time, book a flight that leaves from Watertown Regional Airport (ATY) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Watertown Regional Airport (ATY) to San Diego Intl. Airport (SAN) last-minute?
Last-minute fares from ATY to SAN are generally more expensive. To secure the lowest rates, start looking for flights as soon as possible. That said, if your travel plans are flexible, it's possible to land a cheap ticket right before your trip.
Is it cheaper to book an ATY to SAN flight and hotel package?
You can save money by booking an ATY to SAN flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've chosen your preferred flights and accommodations, you can add extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Watertown Regional Airport (ATY) to San Diego Intl. Airport (SAN)?
If you booked your ATY to SAN flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you want more information.

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