Cheap flights from Casper to Sioux Falls

One-way fares from $379 · CPR → FSD · prices found by travellers in the last 48 hours

Compare all dates Sioux Falls → Casper
Cheapest fare
$379

United Airlines · Thu, Nov 12

Cheapest month
November

from $379

Direct flights
Not recently

Usually 1+ stop

Quickest trip
3h 11m

790 km

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Cheapest month to fly from Casper to Sioux Falls

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

  1. November 2026 Cheapest $379

Cheapest dates in November 2026

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

United Airlines
Depart15:13 Thu, Nov 12CPR → FSD 3h 11m · 1 stop
$379one way, per person
View deal
United Airlines
Depart07:00 Fri, Nov 13CPR → FSD 3h 16m · 1 stop
$379one way, per person
View deal
See every date in November 2026 →

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

Where to stay

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Things to do

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Getting around

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About flights from Casper to Sioux Falls

Casper (CPR) and Sioux Falls (FSD) are about 790 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 $379, 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 Falls?

The cheapest one-way fare we've seen recently is $379 with United Airlines, departing Thursday, November 12, 2026.

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

November 2026 currently has the lowest fares, from $379 one way.

Are there direct flights from Casper to Sioux Falls?

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

How long is the flight from Casper to Sioux Falls?

The quickest journey we've seen takes about 3h 11m. Casper and Sioux Falls are around 790 km apart.

Which airlines fly from Casper to Sioux Falls?

Recent fares on this route were with United Airlines.

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