Direct (nonstop) flights from Sioux City to Denver
1 airline flys nonstop from Sioux Gateway Col Bud Day Fld (SUX) to Denver International (DEN). It's 467 miles (751 km), about 1h 54m in the air. Operated by United Airlines.
United Airlines
Route data last updated: May 30, 2026
Airlines with non-stop flights
UA
United Airlines
Alternative Routes
Other ways to fly from Sioux City to Denver with one stop · direct emits 86 kg CO₂ per passenger
Looking for the return flight?
DEN → SUX: Flights from Denver to Sioux CityDirect flights from Denver (DEN)
Frequently Asked Questions
How long is the direct flight from Sioux City to Denver?
A nonstop flight from Sioux City (SUX) to Denver (DEN) takes approximately 1 hours and 54 minutes. The distance is 467 miles (751 km).
Which airlines fly nonstop from Sioux City to Denver?
Just United Airlines.
Is there a nonstop flight from Sioux City to Denver?
Yes. 1 airline: United Airlines.
How far is Sioux City from Denver?
The flight distance from Sioux City to Denver 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 Sioux City to Denver?
At 1h 54m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Sioux City to Denver?
Roughly 86 kg CO2 per passenger one-way. That's about the same as driving 430 km.
Is the return flight from Denver to Sioux City 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 Sioux City to Denver?
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 Sioux Gateway Col Bud Day Fld for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.