$235 Cheap United flights Sioux Falls (FSD) to Phoenix (PHX)

View $235 flight on Thu, Dec 18, 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

$235 Cheap United flights Sioux Falls (FSD) to Phoenix (PHX)

Prices were available within the past 7 days and start at $235 for one-way flights and $361 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Nov 12 - Sat, Nov 15
FSD
Sioux Falls
PHX
Phoenix
$361 Roundtrip, just found
$361
Roundtrip
just found
Select United flight, departing Wed, Nov 12 from Sioux Falls to Phoenix, returning Sat, Nov 15, priced at $361 just found
0
Flights from Sioux Falls (FSD) to Phoenix (PHX)
Origin airport
Sioux Falls Regional
Destination airport
Sky Harbor Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, United
Popular airline
Delta
Distance
1080 mi

Frequently asked questions

How much is a United Airlines flight from Sioux Falls Regional Airport (FSD) to Sky Harbor Intl. Airport (PHX)?
Make use of the "Price (lowest to highest)" filter on Expedia to look for cheap United Airlines round-trip flights from $361 from FSD to PHX. Affordable one-way fares from $235 are available as well.**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 FSD to PHX with United Airlines?
July is one of the most affordable months to get away to Phoenix with United Airlines. You could also find fantastic deals on one-way and return tickets in August.
What is the cheapest time to book flights from Sioux Falls Regional Airport (FSD) to Sky Harbor Intl. Airport (PHX) with United Airlines?
To find cheap United Airlines fares from Sioux Falls Regional Airport (FSD) to Sky Harbor Intl. Airport (PHX), start searching one to three months before your intended departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also affect the overall price. Sunday tends to be the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by choosing to book on a Sunday.**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 Sioux Falls Regional Airport (FSD) to Sky Harbor Intl. Airport (PHX)?
Fill in your dates, click search and check "Nonstop" on Expedia to find any direct flights from FSD to PHX with United Airlines or other carriers.
What is the earliest United Airlines flight from FSD to PHX?
To find the earliest departures from FSD to PHX with United Airlines, sort your results by "Morning" and "Early Morning." Choosing an early flight generally means you're less likely to experience cancellations.**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 Phoenix?
Sky Harbor Intl. Airport (PHX) is the main Phoenix hub for United Airlines flights from Sioux Falls Regional Airport (FSD).
Why fly with United Airlines from FSD to PHX?
A rewarding loyalty program and the opportunity to collect points through United Mileage Plus are the start of the reasons to jet off from FSD to PHX with United Airlines. Plus, when you join Expedia's free One Key™ program, you can receive OneKeyCash™* on top of any airline loyalty program earnings. It's yours to spend on your next adventure.*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 Sioux Falls Regional Airport (FSD) to Sky Harbor Intl. Airport (PHX)?
Changes are usually free within 24 hours of making your booking, but your airline may charge you after that time. For more details about altering your reservation, go to your "Trips," select your flight and click on "Manage Booking." If you'd like the flexibility to update your itinerary without additional costs, check the "No cancel fee" or "Changes included" filter when planning your next adventure.

Explore a world of travel with Expedia

*Available to One Key members.