HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Watertown

$240+ Cheap flights from Denver to Watertown (DEN - ATY)

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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — ATY
août 4 — août 111
lun. 8/4
lun. 8/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Denver 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 Denver to Watertown

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Watertown (ATY). 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 juillet 30, 2025.

Round-trip from

$240
(United Airlines)

Popular in

April

Cheapest in

January

Average price

$198

Good round-trip deal

$240 or less

Good one-way deal

$131 or less
From Denver Intl to Watertown
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals
Price to beat on a round-trip flight from Denver Intl to Watertown.
Search Deals
Price to beat on a one-way flight from Denver Intl to Watertown.
Search Deals

Find flight deals from Denver to Watertown

Cheapest flights from Denver to Watertown
Explore the most affordable flight options available from Denver to Watertown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on juillet 30, 2025.

This United Airlines deal was found by Cheapflights users on 7/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 8/132:30 pmDEN - ATY
Nonstop1h 42mUnited Airlines
dim. 8/176:44 pmATY - DEN
Nonstop1h 56mUnited Airlines
Deal found 7/28$240
This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 8/221:51 pmDEN - ATY
1 stop6h 17mDelta
dim. 8/245:15 amATY - DEN
1 stop5h 40mDelta
Deal found 7/30$414
This United deal was found by Cheapflights users on 7/28. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 7/3111:20 amDEN - ATY
Nonstop1h 40mMultiple Airlines
mer. 8/66:44 pmATY - DEN
Nonstop1h 56mMultiple Airlines
Deal found 7/28$507

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver 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 2,558,603 searches. Data last updated juillet 30, 2025.
Use the filters below to find and compare flights from Denver to Watertown that are best for you.

Fly from

Denver

Fly to

Watertown

Route

Depart

Return

Price

DenverWatertown

DEN - ATY

DENATY

Denver Intl

mer. 8/13

2:30 pm-5:12 pm

Nonstop1h 42m

Watertown

dim. 8/17

6:44 pm-7:40 pm

Nonstop1h 56m

$240

DenverWatertown

DEN - ATY

DENATY

Denver Intl

ven. 8/22

1:51 pm-9:08 pm

1 stop6h 17m

Watertown

dim. 8/24

5:15 am-9:55 am

1 stop5h 40m

$414

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from Denver to Watertown

Have a flexible travel schedule? Discover the best time to fly to Watertown from Denver 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 Denver to Watertown

What is the cheapest time of day to fly from DEN to ATY?

Find hourly flight availability from Denver to Watertown. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated juillet 30, 2025.

It’s typically best to fly out from Denver to Watertown in the afternoon. Doing so could potentially save you 20% on the flight price compared to flying at noon, which is usually more expensive.

Reviews of airlines servicing Watertown

Get insights into the airlines that provide service to Watertown. 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 Watertown. Reviews last updated juillet 30, 2025.
Get a feel of what it's like to fly with Delta and United Airlines from Denver to Watertown by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

  • What are the cheapest airlines flying from Denver to Watertown round-trip?

    Currently priced at $240, United Airlines will fly you from Denver to Watertown and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Delta for as low as $414.

  • What are the cheapest flights from Denver to Watertown?

    While on average a flight from Denver to Watertown is generally $224, our data shows the cheapest flight currently is $117. When looking at the most popular route, (Denver Intl - Watertown), you can expect to pay $240 for that flight.

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

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

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

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

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

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

See more FAQs

Traveling to a place near Watertown?

Book flights to Watertown if you plan to visit one of these locations
Brookings

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 for Denver to Watertown

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Sioux Falls flights
Denver to Rapid City flights
Colorado Springs to Sioux Falls flights
Denver to Pierre flights
Denver to Aberdeen flights
Colorado Springs to Rapid City flights

Top airline flying from Denver to Watertown

Discover the top airline that operate flights from Denver to Watertown. 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 juillet 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Denver Air ConnectionCheapest$154Average$214FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.