United AirlinesDepart18:45
Fri, Nov 13SUX → DEN
1h 56m · Direct
$228one way, per person
View deal
- Cheapest fare
- $228
- Cheapest month
- November
- Direct flights
- Yes
- Flight time
- 1h 56m
United Airlines · Fri, Nov 13
from $228
United Airlines
780 km
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Cheapest month to fly from Sioux City to Denver
Lowest one-way fare per person in each month. Choose a month to see every date.
Cheapest dates in November 2026
The lowest fares we've seen for each day, cheapest first.
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Where to stay, what to do and getting around, from our travel partners.
About flights from Sioux City to Denver
Sioux City (SUX) and Denver (DEN) are about 780 km apart. Direct flights take around 1h 56m, and recent direct fares were with United Airlines. Over the next few months, one-way fares start from $228, and November 2026 is currently the cheapest month to fly.
These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.
Frequently asked questions
How much is a flight from Sioux City to Denver?
The cheapest one-way fare we've seen recently is $228 with United Airlines, departing Friday, November 13, 2026.
What is the cheapest month to fly from Sioux City to Denver?
November 2026 currently has the lowest fares, from $228 one way.
Are there direct flights from Sioux City to Denver?
Yes. Recent direct fares were with United Airlines.
How long is the flight from Sioux City to Denver?
A direct flight takes about 1h 56m. Sioux City and Denver are around 780 km apart.
Which airlines fly from Sioux City to Denver?
Recent fares on this route were with United Airlines.
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