Direct (nonstop) flights from Denver to Sioux City
1 airline flys nonstop from Denver International (DEN) to Sioux Gateway Col Bud Day Fld (SUX). It's 467 miles (751 km), about 1h 41m in the air. Operated by United Airlines.
United Airlines
Route data last updated: May 29, 2026
Airlines with non-stop flights
UA
United Airlines
Alternative Routes
Other ways to fly from Denver to Sioux City with one stop · direct emits 86 kg CO₂ per passenger
Looking for the return flight?
SUX → DEN: Flights from Sioux City to DenverOther direct flights from Denver
Direct flights from Sioux City (SUX)
Frequently Asked Questions
How long is the direct flight from Denver to Sioux City?
A nonstop flight from Denver (DEN) to Sioux City (SUX) takes approximately 1 hours and 41 minutes. The distance is 467 miles (751 km).
Which airlines fly nonstop from Denver to Sioux City?
Just United Airlines.
Is there a nonstop flight from Denver to Sioux City?
Yes. 1 airline: United Airlines.
How far is Denver from Sioux City?
The flight distance from Denver to Sioux City is 467 miles (751 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as Mumbai to Goa.
What type of aircraft flies from Denver to Sioux City?
At 1h 41m, 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 Sioux City?
Roughly 86 kg CO2 per passenger one-way. That's about the same as driving 430 km.
Is the return flight from Sioux City 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 Sioux City?
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.