$125 Cheap United flights Los Angeles (LAX) to Sioux Falls (FSD)

View $125 flight on Wed, Dec 31, 2025Opens in a new window

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$125 Cheap United flights Los Angeles (LAX) to Sioux Falls (FSD)

Prices were available within the past 7 days and start at $125 for one-way flights and $249 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Sep 24 - Sun, Sep 28
LAX
Los Angeles
FSD
Sioux Falls
$249 Roundtrip, found 11 hours ago
$249
Roundtrip
found 11 hours ago
Select United flight, departing Wed, Sep 24 from Los Angeles to Sioux Falls, returning Sun, Sep 28, priced at $249 found 11 hours ago
United
Wed, Sep 10 - Tue, Sep 16
LAX
Los Angeles
FSD
Sioux Falls
$259 Roundtrip, found 3 hours ago
$259
Roundtrip
found 3 hours ago
Select United flight, departing Wed, Sep 10 from Los Angeles to Sioux Falls, returning Tue, Sep 16, priced at $259 found 3 hours ago
United
Fri, Dec 26 - Sat, Jan 3
LAX
Los Angeles
FSD
Sioux Falls
$259 Roundtrip, found 2 days ago
$259
Roundtrip
found 2 days ago
Select United flight, departing Fri, Dec 26 from Los Angeles to Sioux Falls, returning Sat, Jan 3, priced at $259 found 2 days ago
United
Wed, Aug 6 - Wed, Aug 13
LAX
Los Angeles
FSD
Sioux Falls
$263 Roundtrip, found 9 hours ago
$263
Roundtrip
found 9 hours ago
Select United flight, departing Wed, Aug 6 from Los Angeles to Sioux Falls, returning Wed, Aug 13, priced at $263 found 9 hours ago
United
Wed, Aug 6 - Wed, Aug 13
LAX
Los Angeles
FSD
Sioux Falls
$268 Roundtrip, found 9 hours ago
$268
Roundtrip
found 9 hours ago
Select United flight, departing Wed, Aug 6 from Los Angeles to Sioux Falls, returning Wed, Aug 13, priced at $268 found 9 hours ago
United
Wed, Sep 24 - Sun, Sep 28
LAX
Los Angeles
FSD
Sioux Falls
$269 Roundtrip, found 11 hours ago
$269
Roundtrip
found 11 hours ago
Select United flight, departing Wed, Sep 24 from Los Angeles to Sioux Falls, returning Sun, Sep 28, priced at $269 found 11 hours ago
Flights from Los Angeles (LAX) to Sioux Falls (FSD)
Origin airport
Los Angeles Intl.
Destination airport
Sioux Falls Regional
Airlines serving
American Airlines, Delta, Frontier Airlines, United
Popular airline
Delta
Distance
1338 mi
Average flight time
8 hours 26 mins

Frequently asked questions

How much is a United Airlines flight from Los Angeles Intl. Airport (LAX) to Sioux Falls Regional Airport (FSD)?
You'll find affordable round-trip United Airlines flights from $249 from LAX to FSD by sorting your results from "Price (lowest to highest)" on Expedia. Or search for deals from $125 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from LAX to FSD with United Airlines?
United Airlines flights to Sioux Falls are usually cheaper in the low-season months of January and December. Whether you're in search of a round-trip or one-way ticket, you could score a better deal then.
What is the cheapest time to book flights from Los Angeles Intl. Airport (LAX) to Sioux Falls Regional Airport (FSD) with United Airlines?
Start searching one to three months ahead of your departure date to find cheaper fares on United Airlines flights from Los Angeles Intl. Airport (LAX) to Sioux Falls Regional Airport (FSD). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing spot on, and you can enjoy significant savings on domestic trips.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Los Angeles Intl. Airport (LAX) to Sioux Falls Regional Airport (FSD)?
Enter your dates, click search and tick the "Nonstop" filter on Expedia to browse any direct flights from LAX to FSD with United Airlines or another airline.
What is the earliest United Airlines flight from LAX to FSD?
Sort your results by "Morning" and "Early Morning" to see the earliest departures from LAX to FSD. Heading off early means flight cancellations are less likely.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Sioux Falls?
Sioux Falls Regional Airport (FSD) is the primary Sioux Falls hub for United Airlines flights from Los Angeles Intl. Airport (LAX).
Why fly with United Airlines from LAX to FSD?
A rewarding loyalty program and the ability to collect points through United Mileage Plus are the start of the reasons to depart from LAX to FSD with United Airlines. Plus, when you join our One Key™ program, you can earn OneKeyCash™* alongside United Airlines's loyalty program earnings. It's yours to spend on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my United Airlines flight from Los Angeles Intl. Airport (LAX) to Sioux Falls Regional Airport (FSD)?
It's usually possible to cancel or modify your flight, although there may be a charge if you made your booking over 24 hours ago. Need to keep your options open? Apply the "No cancel fee" and "Changes included" filters to find flights that won't charge extra if you have to alter your plans. To modify your itinerary, visit "Trips," select your flight and click on "Manage Booking" for more details.

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