$95 Cheap Frontier Airlines flights Phoenix (PHX) to Sioux Falls (FSD)

View $95 flight on Wed, Aug 27, 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

$95 Cheap Frontier Airlines flights Phoenix (PHX) to Sioux Falls (FSD)

Prices were available within the past 7 days and start at $95 for one-way flights and $208 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Oct 16 - Mon, Oct 20
PHX
Phoenix
FSD
Sioux Falls
$208 Roundtrip, just found
$208
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Oct 16 from Phoenix to Sioux Falls, returning Mon, Oct 20, priced at $208 just found
Frontier Airlines
Wed, Aug 13 - Wed, Aug 20
PHX
Phoenix
FSD
Sioux Falls
$208 Roundtrip, found 1 day ago
$208
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, Aug 13 from Phoenix to Sioux Falls, returning Wed, Aug 20, priced at $208 found 1 day ago
Frontier Airlines
Sat, Sep 20 - Mon, Sep 22
PHX
Phoenix
FSD
Sioux Falls
$218 Roundtrip, found 1 day ago
$218
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Sat, Sep 20 from Phoenix to Sioux Falls, returning Mon, Sep 22, priced at $218 found 1 day ago
Frontier Airlines
Sun, Aug 24 - Thu, Aug 28
PHX
Phoenix
FSD
Sioux Falls
$226 Roundtrip, just found
$226
Roundtrip
just found
Select Frontier Airlines flight, departing Sun, Aug 24 from Phoenix to Sioux Falls, returning Thu, Aug 28, priced at $226 just found
Frontier Airlines
Wed, Aug 20 - Wed, Aug 27
PHX
Phoenix
FSD
Sioux Falls
$233 Roundtrip, found 11 hours ago
$233
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Wed, Aug 20 from Phoenix to Sioux Falls, returning Wed, Aug 27, priced at $233 found 11 hours ago
Frontier Airlines
Fri, Sep 5 - Mon, Sep 15
PHX
Phoenix
FSD
Sioux Falls
$238 Roundtrip, found 1 hour ago
$238
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Fri, Sep 5 from Phoenix to Sioux Falls, returning Mon, Sep 15, priced at $238 found 1 hour ago
Flights from Phoenix (PHX) to Sioux Falls (FSD)
Origin airport
Sky Harbor Intl.
Destination airport
Sioux Falls Regional
Airlines serving
American Airlines, Delta, Frontier Airlines, United
Popular airline
American Airlines
Distance
1080 mi
Average flight time
4 hours 20 mins

Frequently asked questions

How much is a Frontier Airlines flight from Sky Harbor Intl. Airport (PHX) to Sioux Falls Regional Airport (FSD)?
Grab cheap round-trip Frontier Airlines flights from $208 from PHX to FSD by filtering your results from "Price (lowest to highest)" on Expedia. Or look for bargains from $95 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 PHX to FSD with Frontier Airlines?
Frontier Airlines flights to Sioux Falls are often cheaper in the quieter months of January and December. Whether you're after a one-way or round-trip ticket, you could score a better deal then.
What is the cheapest time to book flights from Sky Harbor Intl. Airport (PHX) to Sioux Falls Regional Airport (FSD) with Frontier Airlines?
Begin your search one to three months before your departure to find cheap fares on Frontier Airlines flights from Sky Harbor Intl. Airport (PHX) to Sioux Falls Regional Airport (FSD). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Time it well, and you can enjoy significant savings on domestic flights.*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 Frontier Airlines fly nonstop from Sky Harbor Intl. Airport (PHX) to Sioux Falls Regional Airport (FSD)?
To figure out if there's a direct journey from PHX to FSD with Frontier Airlines or other airlines, check the "Nonstop" box when searching for flights.
What is the earliest Frontier Airlines flight from PHX to FSD?
Find Frontier Airlines's earliest flights from PHX to FSD by selecting our "Morning" and "Early Morning" filters. Not only will you arrive at your destination sooner, early departures also have a 20% less chance of being canceled.**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 Frontier Airlines fly into in Sioux Falls?
Frontier Airlines flights from Sky Harbor Intl. Airport (PHX) to Sioux Falls touch down at Sioux Falls Regional Airport (FSD). This is the main entry point to this destination.
Why fly with Frontier Airlines from PHX to FSD?
Offering a rewarding loyalty program, Frontier Airlines is a top choice for many passengers flying from PHX to FSD. Plus, if you're a Frontier Miles and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles.*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 Frontier Airlines flight from Sky Harbor Intl. Airport (PHX) to Sioux Falls Regional Airport (FSD)?
In most cases, you can cancel or change your flight, although additional charges may apply if your booking was made more than 24 hours ago. Want to keep your options open? Apply the "No cancel fee" or "Changes included" filter to find flights that won't charge extra if you have to adjust your plans. To modify your booking, go to "Trips," select your flight and click on "Manage Booking" for further information.

Explore a world of travel with Expedia

*Available to One Key members.