Cheap flights from Casper to Sioux City

One-way fares from $419 · CPR → SUX · prices found by travellers in the last 48 hours

Compare all dates Sioux City → Casper
Cheapest fare
$419

United Airlines · Fri, Nov 13

Cheapest month
November

from $419

Direct flights
Not recently

Usually 1+ stop

Quickest trip
3h 11m

820 km

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Cheapest month to fly from Casper to Sioux City

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 Cheapest $419

Cheapest dates in November 2026

The lowest fares we've seen for each day, cheapest first.

United Airlines
Depart17:57 Fri, Nov 13CPR → SUX 3h 11m · 1 stop
$419one way, per person
View deal
See every date in November 2026 →

Plan the rest of your trip to Sioux City

Where to stay, what to do and getting around, from our travel partners.

Where to stay

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Things to do

Things to do in Sioux CityTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in Sioux CityPre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in Sioux CityCompare rental cars from major brands on EconomyBookings Compare cars →

About flights from Casper to Sioux City

Casper (CPR) and Sioux City (SUX) are about 820 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 3h 11m. Over the next few months, one-way fares start from $419, 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 Casper to Sioux City?

The cheapest one-way fare we've seen recently is $419 with United Airlines, departing Friday, November 13, 2026.

What is the cheapest month to fly from Casper to Sioux City?

November 2026 currently has the lowest fares, from $419 one way.

Are there direct flights from Casper to Sioux City?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from Casper to Sioux City?

The quickest journey we've seen takes about 3h 11m. Casper and Sioux City are around 820 km apart.

Which airlines fly from Casper to Sioux City?

Recent fares on this route were with United Airlines.

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