$149 Cheap United flights from Billings to Sioux Falls (BIL to FSD)

Find The Best Day To Fly from Billings to Sioux Falls

Amazing United BIL to FSD Flight Deals

The cheapest flights to Sioux Falls Regional found within the past 7 days were $373 round trip and $149 one way. Prices and availability subject to change. Additional terms may apply.

Thu, Aug 7 - Sat, Aug 9
BIL
Billings
FSD
Sioux Falls
$373 Roundtrip, found 8 hours ago
$373
Roundtrip
found 8 hours ago
Select United flight, departing Thu, Aug 7 from Billings to Sioux Falls, returning Sat, Aug 9, priced at $373 found 8 hours ago
Mon, Aug 4 - Thu, Aug 7
BIL
Billings
FSD
Sioux Falls
$381 Roundtrip, found 8 hours ago
$381
Roundtrip
found 8 hours ago
Select United flight, departing Mon, Aug 4 from Billings to Sioux Falls, returning Thu, Aug 7, priced at $381 found 8 hours ago
Mon, Aug 4 - Thu, Aug 7
BIL
Billings
FSD
Sioux Falls
$389 Roundtrip, found 8 hours ago
$389
Roundtrip
found 8 hours ago
Select United flight, departing Mon, Aug 4 from Billings to Sioux Falls, returning Thu, Aug 7, priced at $389 found 8 hours ago
Thu, Aug 7 - Thu, Aug 7
BIL
Billings
FSD
Sioux Falls
$396 Roundtrip, found 8 hours ago
$396
Roundtrip
found 8 hours ago
Select United flight, departing Thu, Aug 7 from Billings to Sioux Falls, returning Thu, Aug 7, priced at $396 found 8 hours ago
Wed, Aug 6 - Thu, Aug 7
BIL
Billings
FSD
Sioux Falls
$401 Roundtrip, found 8 hours ago
$401
Roundtrip
found 8 hours ago
Select United flight, departing Wed, Aug 6 from Billings to Sioux Falls, returning Thu, Aug 7, priced at $401 found 8 hours ago
Mon, Aug 4 - Sat, Aug 9
BIL
Billings
FSD
Sioux Falls
$406 Roundtrip, found 8 hours ago
$406
Roundtrip
found 8 hours ago
Select United flight, departing Mon, Aug 4 from Billings to Sioux Falls, returning Sat, Aug 9, priced at $406 found 8 hours ago

Frequently asked questions

Can I catch a flight from BIL to Sioux Falls Regional Airport (FSD) right now?
For any present FSD travel advice and quarantine requirements, go to our Covid-19 Travel Advisor. Check before you arrange your flight, so you don't get caught up en route.
What terminal is United Airlines at Billings Logan International Airport?
As soon as you're issued your ticket for your United Airlines flight from Logan Intl. Airport (BIL) to Joe Foss Field, check if the terminal details are written on it. If not, you might like to ask your airline. They'll be able to let you know where you'll be flying into and out of.
Are there United Airlines non-stop flights from BIL to FSD?
United Airlines doesn't have direct flights between Billings Logan International Airport and Joe Foss Field, so be prepared to make a stopover. If you have time to spare between flights, browse the airport shops while waiting for your connection.
How long is a United Airlines flight from BIL to FSD?
From the instant your United Airlines aircraft is pushed back from the gate at BIL to the moment it pulls into Sioux Falls Regional Airport (FSD), you'll be in your seat for about 3 hours and 22 minutes. With such a short flight time, it's a fantastic spur-of-the-moment escape.
How many direct and indirect flights does United Airlines fly from BIL to FSD?
There are around 3 flights daily with United Airlines from BIL to Sioux Falls Regional Airport (FSD).
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to FSD, please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best United flight from Billings BIL to Sioux Falls FSD 

To find the best deals on flights to Billings from Sioux Falls with United, just enter your travel dates, filter by United, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Billings BIL to Sioux Falls FSD with United 

If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $373 to $406, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way United flights from Billings BIL to Sioux Falls FSD 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from Billings to Sioux Falls costs from $149. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Sioux Falls FSD from  Billings BIL with United 

To find a cheap United flight from Billings BIL to Sioux Falls FSD, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on United flights from Billings BIL to Sioux Falls FSD 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as August, or if you book a flight with a stopover. 

 

Find nonstop flights from Billings BIL to Sioux Falls FSD with United 

If you’re keen to be on Sioux Falls soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for United flights from Billings BIL to Sioux Falls FSD 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Sioux Falls FSD from  Billings BIL with United on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

United Airports
Hop on a(n) United flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ORDUSAO'Hare Intl.227
DENUSADenver Intl.226
IAHUSAGeorge Bush Intercontinental136
IADUSAWashington Dulles Intl.100
SFOUSASan Francisco Intl.64
LAXUSALos Angeles Intl.23
EWRUSALiberty Intl.20
FRADEUFrankfurt Intl.19
NRTJPNNarita Intl.19
PEKCHNCapital Intl.16

Travelers ❤️ these 🏨 after their flight to Sioux Falls

Ramada by Wyndham Sioux Falls Airport-Waterpark & Event Ctr

Ramada by Wyndham Sioux Falls Airport-Waterpark & Event Ctr

3 out of 5
1301 West Russell, I-29 and Exit 81, Sioux Falls, SD
Free water park access, a casino, and 3 indoor pools are all featured at this smoke-free hotel. There's fun for all ages with a children's pool and a waterslide, ...
7.4/10 Good! (1,310 reviews)
"Fun with kids"

Reviewed on Jul 16, 2025

Ramada by Wyndham Sioux Falls Airport-Waterpark & Event Ctr
AeroStay Hotel

AeroStay Hotel

2.5 out of 5
2821 N Jaycee Lane, Sioux Falls, SD
A 24-hour gym is featured at this hotel, along with self parking. Enjoy the free on-the-go breakfast each morning. Traveling on business? Take advantage of the ...
8.8/10 Excellent! (1,001 reviews)
"Basic property which is fine for a one-night stay. Extremely convenient but expensive for what it is."

Reviewed on Jul 13, 2025

AeroStay Hotel
Days Inn by Wyndham Sioux Falls Airport

Days Inn by Wyndham Sioux Falls Airport

2 out of 5
5001 N Cliff Ave, Sioux Falls, SD
This hotel doesn't skimp on freebies - guests receive free continental breakfast, free WiFi, and free self parking. Business travelers can take advantage of ...
7.2/10 Good! (1,010 reviews)
"Nice stay."

Reviewed on Jul 15, 2025

Days Inn by Wyndham Sioux Falls Airport
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.