Direct (nonstop) flights from Denver to Watertown
1 airline flys nonstop from Denver International (DEN) to Watertown Regional Airport (ATY). It's 519 miles (835 km), about 1h 48m in the air. Operated by United Airlines.
United Airlines
Route data last updated: May 26, 2026
Airlines with non-stop flights
UA
United Airlines
Alternative Routes
Other ways to fly from Denver to Watertown with one stop · direct emits 96 kg CO₂ per passenger
Looking for the return flight?
ATY → DEN: Flights from Watertown to DenverOther direct flights from Denver
Direct flights from Watertown (ATY)
Frequently Asked Questions
How long is the direct flight from Denver to Watertown?
A nonstop flight from Denver (DEN) to Watertown (ATY) takes approximately 1 hours and 48 minutes. The distance is 519 miles (835 km).
Which airlines fly nonstop from Denver to Watertown?
Just United Airlines.
Is there a nonstop flight from Denver to Watertown?
Yes. 1 airline: United Airlines.
How far is Denver from Watertown?
The flight distance from Denver to Watertown is 519 miles (835 km), measured as the great-circle (shortest air) distance.
What type of aircraft flies from Denver to Watertown?
At 1h 48m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Denver to Watertown?
Roughly 96 kg CO2 per passenger one-way. That's about the same as driving 480 km.
Is the return flight from Watertown to Denver also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Denver to Watertown?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Denver International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.