$138 Cheap flight deals from Watertown (ATY) to Denver (DEN)

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Airfares from $138 One Way, $374 Round Trip from Watertown to Denver

Prices starting at $374 for return flights and $138 for one-way flights to Denver were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Jul 20 - Tue, Jul 21
ATY
Watertown
DEN
Denver
$374 Roundtrip, found 4 days ago
$374
Roundtrip
found 4 days ago
Select United flight, departing Mon, Jul 20 from Watertown to Denver, returning Tue, Jul 21, priced at $374 found 4 days ago
Fri, Aug 28 - Sun, Aug 30
ATY
Watertown
DEN
Denver
$394 Roundtrip, found 2 days ago
$394
Roundtrip
found 2 days ago
Select Delta flight, departing Fri, Aug 28 from Watertown to Denver, returning Sun, Aug 30, priced at $394 found 2 days ago
Tue, Jul 21 - Wed, Jul 22
ATY
Watertown
DEN
Denver
$427 Roundtrip, found 4 days ago
$427
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Jul 21 from Watertown to Denver, returning Wed, Jul 22, priced at $427 found 4 days ago
Tue, Jul 21 - Wed, Jul 22
ATY
Watertown
DEN
Denver
$432 Roundtrip, found 4 days ago
$432
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Jul 21 from Watertown to Denver, returning Wed, Jul 22, priced at $432 found 4 days ago
Wed, Jul 15 - Sun, Jul 19
ATY
Watertown
DEN
Denver
$440 Roundtrip, found 1 day ago
$440
Roundtrip
found 1 day ago
Select United flight, departing Wed, Jul 15 from Watertown to Denver, returning Sun, Jul 19, priced at $440 found 1 day ago

Denver economy flight packages

Price found within the past 48 hours. Click for updated prices.
The Slate Denver, Tapestry Collection By Hilton
4.0-star property

The Slate Denver, Tapestry Collection By Hilton

9.4/10 Exceptional! (1,589 reviews)

Sep 4 - Sep 7

3 night stay

Watertown (ATY) to Denver (DEN)

Delta • Non-stop • Coach

Denver (DEN) to Watertown (ATY)

United • Non-stop • Coach
Price was $1,092, price is now $921 per person
$921
per person
found 1 day ago
Very nice hotel, nice vibe - the repurposed school was a very cool aesthetic. Restaurant was amazing, highly recommended. Right next to the convention center.

Reviewed on Jul 10, 2026

Kimpton Hotel Monaco Denver by IHG
4.0-star property

Kimpton Hotel Monaco Denver by IHG

8.6/10 Excellent! (1,001 reviews)

Sep 4 - Sep 7

3 night stay

Watertown (ATY) to Denver (DEN)

Delta • Non-stop • Coach

Denver (DEN) to Watertown (ATY)

United • Non-stop • Coach
Price was $1,228, price is now $1,066 per person
$1,066
per person
found 1 day ago
Elevator was broken our entire stay and the upgraded Executive Suite definitely needs some significant upgrades. We couldn’t use the outlets next to our bed due to them being too loose and unable to hold our chargers. Definitely not the stay we expected, unfortunately.

Reviewed on Jul 8, 2026

Hotel Teatro
4.5-star property

Hotel Teatro

9/10 Wonderful! (1,358 reviews)

Sep 4 - Sep 7

3 night stay

Watertown (ATY) to Denver (DEN)

Delta • Non-stop • Coach

Denver (DEN) to Watertown (ATY)

United • Non-stop • Coach
Price was $1,180, price is now $1,043 per person
$1,043
per person
found 1 day ago
Room was clean, and breakfast was great! Great charm. Staff were excellent. Gym was lacking. Would return!

Reviewed on Jul 10, 2026

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More About Flying To Denver from Watertown

Route Information for Flights from Watertown to Denver

Origin Airport IATA Code
ATY
Destination Airport IATA Code
DEN
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

Watertown to Denver

It has never been easier to find cheap Watertown to Denver flights. Orbitz has some of the best deals around to save you more money on your flight, hotel, and vacation package for the trip you have been waiting for.

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Get the Best Deals on Watertown to Denver Flights

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Frequently asked questions

Are there non-stop flights from Watertown to Denver?
Yes, you'll be thrilled to hear that you can fly straight from ATY to DEN. Direct flights are offered by United Airlines and Denver Air Connection.
What is the shortest flight from Watertown to Denver?
Leave those movies on your laptop for another day, because the journey from Watertown to Denver can be as quick as 2 hours and 34 minutes.
What airlines fly from Watertown to Denver most frequently?
United Airlines (UA) is one of the carriers with the most flights from Watertown, SD (ATY-Watertown Regional) to Denver Intl. Airport (DEN). It offers 30 flights each month on this route. Going on vacation is one of life's biggest pleasures, and this carrier will get you to your destination quickly and safely. Denver Air Connection (KG) will also fly you to your destination in comfort and style. Offering 26 flights every month between Watertown and Denver, it's another quality airline to look into.
What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2021 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won't keep you guessing, according to Orbitz data from 2021, the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a break from it all in the shortest month of the year. Be aware that the most expensive time to fly is during the height of summer in July, and in the holiday month of December.*According to flight demand on Orbitz.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

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Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.