Denver (DEN) to Sioux City (SUX) flights
One airline flies nonstop from Denver (DEN) to Sioux City (SUX): United Airlines. The two airports are 466 miles (750 km) apart. United Airlines is in Star Alliance. There are also 1 way to fly it with one stop, through Chicago.
Airlines flying nonstop from DEN to SUX
- United AirlinesStar Alliance · bookable with 13 programsWho books it
Book DEN to SUX with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Air Canada AeroplanBooks United Airlines
- Air New Zealand AirpointsBooks United Airlines
- ANA Mileage ClubBooks United Airlines
- Avianca LifeMilesBooks United Airlines
- Emirates SkywardsBooks United Airlines
- EVA Air Infinity MileageLandsBooks United Airlines
- JetBlue TrueBlueBooks United Airlines
- Lufthansa Miles & MoreBooks United Airlines
- Singapore Airlines KrisFlyerBooks United Airlines
- TAP Miles&GoBooks United Airlines
- Thai Royal Orchid PlusBooks United Airlines
- Turkish Airlines Miles&SmilesBooks United Airlines
- United MileagePlusBooks United Airlines
DEN to SUX with one stop
1 connection, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Chicago (ORD)United Airlines the whole way
DEN to SUX: common questions
Which airlines fly nonstop from DEN to SUX?
United Airlines (Star Alliance) flies nonstop from Denver (DEN) to Sioux City (SUX).
How far is Denver from Sioux City by plane?
Denver (DEN) and Sioux City (SUX) are 466 miles (750 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book DEN to SUX award flights?
13 programs can book at least one of the nonstop airlines: Air Canada Aeroplan, Air New Zealand Airpoints, ANA Mileage Club, Avianca LifeMiles, Emirates Skywards, EVA Air Infinity MileageLands, JetBlue TrueBlue, Lufthansa Miles & More and 5 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
How many miles does DEN to SUX cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for DEN to SUX with taxes and fees.
Where can I connect between Denver and Sioux City?
The most direct connections are through Chicago (ORD). On 1 of them the same airline flies both flights, for example United Airlines through Chicago.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.