$339+ Cheap flights from Missoula to Sioux Falls (MSO - FSD)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
MSO — FSD
Nov 25 — Dec 21
Round-trip
1 adult, Economy
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Find cheap flights from Missoula to Sioux Falls with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Missoula to Sioux Falls
Cheapest
Best
Last-minute
Cheapest flights from Missoula to Sioux FallsExplore the most affordable flight options available from Missoula to Sioux Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
Explore the most affordable flight options available from Missoula to Sioux Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 26, 2026.
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:24 pm -
1 stop5h 20m
Sun 11/19:32 am -
1 stop7h 54m
Deal found 10/22![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:15 am -
2 stops10h 38m
Mon 11/26:00 am -
2 stops8h 31m
Deal found 10/23![United Airlines logo]()
$456
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/122:37 pm -
1 stop4h 27m
Thu 11/199:32 am -
1 stop4h 59m
Deal found 10/21![United Airlines logo]()
$484
This Delta deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:30 am -
2 stops9h 28m
Thu 11/191:00 pm -
1 stop7h 57m
Deal found 10/21![Delta logo]()
$634
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/205:24 pm -
1 stop5h 20m
Fri 11/275:06 pm -
1 stop5h 41m
Deal found 10/23![United Airlines logo]()
$640
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/92:37 pm -
1 stop4h 27m
Fri 11/1311:22 am -
1 stop6h 04m
Deal found 10/25![United Airlines logo]()
$681
Best flights from Missoula to Sioux FallsDiscover carefully curated flight deals from Missoula to Sioux Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
Discover carefully curated flight deals from Missoula to Sioux Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/152:40 pm -
1 stop4h 57m
Mon 1/189:25 am -
1 stop5h 11m
Deal found 10/26![United Airlines logo]()
$339
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/86:10 am -
2 stops11h 28m
Mon 1/115:13 pm -
1 stop5h 39m
Deal found 10/22![United Airlines logo]()
$344
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/232:40 pm -
1 stop4h 57m
Tue 1/269:25 am -
1 stop5h 11m
Deal found 10/21![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/122:37 pm -
1 stop4h 27m
Thu 11/199:32 am -
1 stop4h 59m
Deal found 10/24![United Airlines logo]()
$484
Last-minute flights from Missoula to Sioux FallsDiscover last-minute flight deals from Missoula to Sioux Falls. Data last updated October 26, 2026 and is based on user searches.
Discover last-minute flight deals from Missoula to Sioux Falls. Data last updated October 26, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/305:24 pm -
1 stop5h 20m
Sun 11/19:32 am -
1 stop7h 54m
Deal found 10/22![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:15 am -
2 stops10h 38m
Mon 11/26:00 am -
2 stops8h 31m
Deal found 10/23![United Airlines logo]()
$456
This United Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/92:37 pm -
1 stop4h 27m
Fri 11/1311:22 am -
1 stop6h 04m
Deal found 10/25![United Airlines logo]()
$681
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/122:37 pm -
1 stop4h 27m
Thu 11/199:32 am -
1 stop4h 59m
Deal found 10/21![United Airlines logo]()
$484
This Delta deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:30 am -
2 stops9h 28m
Thu 11/191:00 pm -
1 stop7h 57m
Deal found 10/21![Delta logo]()
$634
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/205:24 pm -
1 stop5h 20m
Fri 11/275:06 pm -
1 stop5h 41m
Deal found 10/23![United Airlines logo]()
$640
Find flight deals from Missoula to Sioux Falls
Discover tips and strategies to find the most affordable flight options for your journey from Missoula (MSO) to Sioux Falls (FSD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $339 (United Airlines) |
Popular in | July |
Cheapest in | March |
Average price | $353 |
Cheapflights Fare Finder
Customize your flight search to find flights from Missoula to Sioux Falls that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 26, 2026.
Use the filters below to find and compare flights from Missoula to Sioux Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
MissoulaSioux Falls
MSO Missoula Johnson-Bell Field - FSD Sioux Falls Joe Foss Field
MSOFSD
Missoula Johnson-Bell Field
Fri 1/15
2:40 pm-8:37 pm
1 stop4h 57m
Sioux Falls Joe Foss Field
Mon 1/18
9:25 am-1:36 pm
1 stop5h 11m
$339
MissoulaSioux Falls
MSO Missoula Johnson-Bell Field - FSD Sioux Falls Joe Foss Field
MSOFSD
Missoula Johnson-Bell Field
Fri 1/8
6:10 am-6:38 pm
2 stops11h 28m
Sioux Falls Joe Foss Field
Mon 1/11
5:13 pm-9:52 pm
1 stop5h 39m
$344
MissoulaSioux Falls
MSO Missoula Johnson-Bell Field - FSD Sioux Falls Joe Foss Field
MSOFSD
Missoula Johnson-Bell Field
Sat 1/23
2:40 pm-8:37 pm
1 stop4h 57m
Sioux Falls Joe Foss Field
Tue 1/26
9:25 am-1:36 pm
1 stop5h 11m
$439
Quickest round-trip
MissoulaSioux Falls
MSO Missoula Johnson-Bell Field - FSD Sioux Falls Joe Foss Field
MSOFSD
Missoula Johnson-Bell Field
Thu 11/12
2:37 pm-8:04 pm
1 stop4h 27m
Sioux Falls Joe Foss Field
Thu 11/19
9:32 am-1:31 pm
1 stop4h 59m
$484
Sorted by cheapest first
Compare providers for flights from Missoula to Sioux Falls
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Missoula to Sioux Falls in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Missoula-Sioux Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Missoula-Sioux Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Missoula-Sioux Falls flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Missoula-Sioux Falls flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Missoula-Sioux Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Missoula to Sioux Falls
Have a flexible travel schedule? Discover the best time to fly to Sioux Falls from Missoula with our price prediction graph.
MSO-FSD
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Reviews of airlines servicing Sioux Falls
Get insights into the airlines that provide service to Sioux Falls. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sioux Falls. Reviews last updated October 26, 2026.
Read through reviews of airlines operating flights from Missoula to Sioux Falls, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.3
Comfort
7.3
Food
6.7
Boarding
7.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Overall
7.3
Comfort
7.3
Food
6.7
Boarding
7.7
Entertainment
7.1
Crew
8.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Related info for your journey
Find useful and relevant information for your journey from Missoula to Sioux Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Sioux Falls?
Book flights to Sioux Falls if you plan to visit one of these locationsYankton
Marshall
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Missoula and Sioux Falls flights
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Top airline flying from Missoula to Sioux Falls
Discover the top airline that operate flights from Missoula to Sioux Falls. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$273 | Average$560 | FlexibilityNo cancel fee | On-time69% |