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Flights from Casper to Sioux Falls

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

      • CPR 6:10 PM
        4h 45m
        1 stop
        FSD 11:55 PM
        Casper - Sioux Falls | Wed, Dec 31 | United Airlines
        FSD 8:50 AM
        9h 9m
        1 stop
        CPR 4:59 PM
        Sioux Falls - Casper | Sun, Jan 4 | United Airlines
        US$351 US$635
        45% OFF
        45% OFF
        US$635 US$351
      • CPR 1:30 PM
        5h 51m
        1 stop
        FSD 8:21 PM
        Casper - Sioux Falls | Tue, Dec 16 | United Airlines
        FSD 6:00 AM
        5h 11m
        1 stop
        CPR 10:11 AM
        Sioux Falls - Casper | Sat, Dec 20 | United Airlines
        US$353 US$635
        44% OFF
        44% OFF
        US$635 US$353
      • CPR 11:28 AM
        4h 9m
        1 stop
        FSD 4:37 PM
        Casper - Sioux Falls | Tue, Jan 20 | United Airlines
        FSD 6:00 AM
        5h 53m
        1 stop
        CPR 10:53 AM
        Sioux Falls - Casper | Wed, Jan 21 | United Airlines
        US$441 US$635
        31% OFF
        31% OFF
        US$635 US$441
      • CPR 6:10 PM
        4h 45m
        1 stop
        FSD 11:55 PM
        Casper - Sioux Falls | Thu, Dec 18 | United Airlines
        FSD 8:50 AM
        9h 9m
        1 stop
        CPR 4:59 PM
        Sioux Falls - Casper | Mon, Dec 22 | United Airlines
        US$452
        28% OFF
        US$635 US$452
      • CPR 3:19 PM
        7h 36m
        1 stop
        FSD 11:55 PM
        Casper - Sioux Falls | Wed, Dec 24 | United Airlines
        FSD 8:50 AM
        9h 9m
        1 stop
        CPR 4:59 PM
        Sioux Falls - Casper | Mon, Dec 29 | United Airlines
        US$489
        23% OFF
        US$635 US$489
      • CPR 11:26 AM
        7h 34m
        1 stop
        FSD 8:00 PM
        Casper - Sioux Falls | Tue, Dec 23 | United Airlines
        FSD 8:50 AM
        9h 9m
        1 stop
        CPR 4:59 PM
        Sioux Falls - Casper | Mon, Dec 29 | United Airlines
        US$572
        10% OFF
        US$635 US$572
      • CPR 1:00 PM
        17h 25m
        1 stop
        FSD Invalid Date
        Casper - Sioux Falls | Sat, Dec 13 | Normal Airline
        FSD 3:00 PM
        6h
        Nonstop
        CPR 4:00 PM
        Sioux Falls - Casper | Mon, Dec 15 | Normal Airline
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      • CPR 1:00 PM
        17h 25m
        1 stop
        FSD Invalid Date
        Casper - Sioux Falls | Sat, Dec 13 | Normal Airline
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      • CPR 1:00 PM
        17h 25m
        1 stop
        FSD Invalid Date
        Casper - Sioux Falls | Sat, Dec 13 | Normal Airline
        Search
        Search
      • CPR 1:00 PM
        17h 25m
        1 stop
        FSD Invalid Date
        Casper - Sioux Falls | Sat, Dec 13 | Normal Airline
        Search
        Search
      • CPR 1:00 PM
        17h 25m
        1 stop
        FSD Invalid Date
        Casper - Sioux Falls | Sat, Dec 13 | Normal Airline
        Search
        Search
      • CPR 1:00 PM
        17h 25m
        1 stop
        FSD Invalid Date
        Casper - Sioux Falls | Sat, Dec 13 | Normal Airline
        Search
        Search
      • CPR 1:00 PM
        17h 25m
        1 stop
        FSD Invalid Date
        Casper - Sioux Falls | Sat, Dec 13 | Normal Airline
        Search
        Search
      • CPR 1:00 PM
        17h 25m
        1 stop
        FSD Invalid Date
        Casper - Sioux Falls | Sat, Dec 13 | Normal Airline
        Search
        Search
      • CPR 1:00 PM
        17h 25m
        1 stop
        FSD Invalid Date
        Casper - Sioux Falls | Sat, Dec 13 | Normal Airline
        Search
        Search
      • CPR 1:00 PM
        17h 25m
        1 stop
        FSD Invalid Date
        Casper - Sioux Falls | Sat, Dec 13 | Normal Airline
        Search
        Search

Displayed flight fares from Casper to Sioux Falls are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flying from Casper to Sioux Falls

The distance between Casper and Sioux Falls is approximately 790.6 km. Based on Trip.com's data travel demand peaks in December. The off-season for travel is October.

Cheapest round-trip ticket priceUS$351
Off-season for travelOctober
Peak season for travelDecember
Flight distance790.6 km

When is the cheapest time to fly from Casper to Sioux Falls?

The cheapest time for Casper to Sioux Falls flights: Dec 28 to Jan 4 — one way flight prices from US$350.

Cheapest flights
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  • 714
  • 1421
  • 2128

  • Jan

    284
  • 411
  • 1118
  • 1825

  • Feb

    251
  • 18
  • 815
  • 1522

  • Mar

    221
Displayed fare trends are based on Trip.com's aggregated average of the lowest flight prices from Casper to Sioux Falls, calculated over the upcoming 10 weeks.

Frequently Asked Questions

  • When is the best time to book flights from Casper to Sioux Falls?

    By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Casper to Sioux Falls is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Casper to Sioux Falls, you can use various tools on Trip.com:
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Sioux Falls travel is around December.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Casper to Sioux Falls is October, when demand for travel is lower.
  • After crunching the numbers on our December flight calendar, it's currently cheapest to fly from Casper to Sioux Falls on December 31, 2025 with United Airlines, with prices starting at US$350.
  • The time difference between Sioux Falls and Casper is 1h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

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