$274+ Cheap flights from Billings to Sioux Falls (BIL - 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — FSD
Oct 8 — Oct 151
Round-trip
1 adult, Economy
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Find cheap flights from Billings 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 Billings to Sioux Falls
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Cheapest flights from Billings to Sioux FallsExplore the most affordable flight options available from Billings to Sioux Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
Explore the most affordable flight options available from Billings to Sioux Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/195:57 pm -
1 stop4h 45m
Wed 9/239:35 am -
1 stop4h 46m
Deal found 9/4![United Airlines logo]()
$349
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Tue 9/225:57 pm -
1 stop4h 47m
Sat 9/265:04 pm -
1 stop6h 47m
Deal found 9/7![United Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/55:57 pm -
1 stop4h 47m
Mon 10/129:42 am -
1 stop4h 33m
Deal found 9/4![United Airlines logo]()
$448
This United Airlines deal was found by Cheapflights users on 9/5. 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 10/12:28 pm -
1 stop4h 52m
Thu 10/85:04 pm -
1 stop5h 06m
Deal found 9/5![United Airlines logo]()
$499
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/22:28 pm -
1 stop4h 52m
Mon 10/55:04 pm -
1 stop5h 06m
Deal found 9/4![United Airlines logo]()
$516
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/222:54 pm -
1 stop19h 39m
Thu 1/148:27 pm -
1 stop18h 11m
Deal found 9/6![Allegiant Air logo]()
$583
This Delta deal was found by Cheapflights users on 9/7. 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.
Tue 9/226:23 am -
1 stop4h 56m
Sat 9/261:05 pm -
2 stops10h 36m
Deal found 9/7![Delta logo]()
$723
This Delta deal was found by Cheapflights users on 9/4. 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.
Mon 10/55:20 am -
2 stops9h 26m
Mon 10/125:00 pm -
1 stop4h 15m
Deal found 9/4![Delta logo]()
$862
This Delta deal was found by Cheapflights users on 9/5. 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 10/112:57 pm -
2 stops8h 54m
Thu 10/85:00 pm -
1 stop4h 15m
Deal found 9/5![Delta logo]()
$1,012
This Delta deal was found by Cheapflights users on 9/4. 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.
Sat 9/195:20 am -
2 stops9h 26m
Wed 9/238:23 am -
2 stops10h 30m
Deal found 9/4![Delta logo]()
$1,520
Best flights from Billings to Sioux FallsDiscover carefully curated flight deals from Billings to Sioux Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
Discover carefully curated flight deals from Billings to Sioux Falls that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Tue 9/225:57 pm -
1 stop4h 47m
Sat 9/265:04 pm -
1 stop6h 47m
Deal found 9/7![United Airlines logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/222:54 pm -
1 stop19h 39m
Thu 1/148:27 pm -
1 stop18h 11m
Deal found 9/6![Allegiant Air logo]()
$583
This United Airlines deal was found by Cheapflights users on 9/7. 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 1/304:15 pm -
1 stop5h 41m
Wed 2/39:14 am -
1 stop5h 09m
Deal found 9/7![United Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/55:57 pm -
1 stop4h 47m
Mon 10/129:42 am -
1 stop4h 33m
Deal found 9/4![United Airlines logo]()
$448
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/22:28 pm -
1 stop4h 52m
Mon 10/55:04 pm -
1 stop5h 06m
Deal found 9/4![United Airlines logo]()
$516
Last-minute flights from Billings to Sioux FallsDiscover last-minute flight deals from Billings to Sioux Falls. Data last updated September 8, 2026 and is based on user searches.
Discover last-minute flight deals from Billings to Sioux Falls. Data last updated September 8, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/195:57 pm -
1 stop4h 45m
Wed 9/239:35 am -
1 stop4h 46m
Deal found 9/4![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 9/4. 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.
Sat 9/195:20 am -
2 stops9h 26m
Wed 9/238:23 am -
2 stops10h 30m
Deal found 9/4![Delta logo]()
$1,520
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Tue 9/225:57 pm -
1 stop4h 47m
Sat 9/265:04 pm -
1 stop6h 47m
Deal found 9/7![United Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 9/7. 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.
Tue 9/226:23 am -
1 stop4h 56m
Sat 9/261:05 pm -
2 stops10h 36m
Deal found 9/7![Delta logo]()
$723
This United Airlines deal was found by Cheapflights users on 9/5. 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 10/12:28 pm -
1 stop4h 52m
Thu 10/85:04 pm -
1 stop5h 06m
Deal found 9/5![United Airlines logo]()
$499
This Delta deal was found by Cheapflights users on 9/5. 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 10/112:57 pm -
2 stops8h 54m
Thu 10/85:00 pm -
1 stop4h 15m
Deal found 9/5![Delta logo]()
$1,012
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/22:28 pm -
1 stop4h 52m
Mon 10/55:04 pm -
1 stop5h 06m
Deal found 9/4![United Airlines logo]()
$516
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/55:57 pm -
1 stop4h 47m
Mon 10/129:42 am -
1 stop4h 33m
Deal found 9/4![United Airlines logo]()
$448
This Delta deal was found by Cheapflights users on 9/4. 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.
Mon 10/55:20 am -
2 stops9h 26m
Mon 10/125:00 pm -
1 stop4h 15m
Deal found 9/4![Delta logo]()
$862
One-way flights from Billings to Sioux FallsSearch for one-way flight options from Billings to Sioux Falls. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
Search for one-way flight options from Billings to Sioux Falls. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
This American Airlines deal was found by Cheapflights users on 9/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/11:13 pm -
1 stop7h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![American Airlines logo]()
$274
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/195:57 pm -
1 stop4h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![United Airlines logo]()
$351
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Sun 9/205:00 am -
1 stop6h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![United Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 9/4. 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.
Sat 9/195:20 am -
2 stops9h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Delta logo]()
$465
This Delta deal was found by Cheapflights users on 9/5. 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 10/112:57 pm -
2 stops8h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Delta logo]()
$553
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:29 pm -
3 stops43h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$830
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:29 pm -
3 stops26h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$1,408
Find flight deals from Billings to Sioux Falls
Discover tips and strategies to find the most affordable flight options for your journey from Billings (BIL) 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 September 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $349 (United Airlines) |
One-way from | $274 (American Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Billings 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 September 8, 2026.
Use the filters below to find and compare flights from Billings to Sioux Falls that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BillingsSioux Falls
BIL Billings Logan Intl - FSD Sioux Falls Joe Foss Field
BILFSD
Billings Logan Intl
Thu 10/1
1:13 pm-9:48 pm
1 stop7h 35m
Sioux Falls Joe Foss Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$274
Quickest round-trip
BillingsSioux Falls
BIL Billings Logan Intl - FSD Sioux Falls Joe Foss Field
BILFSD
Billings Logan Intl
Sun 9/20
5:00 am-12:39 pm
1 stop6h 39m
Sioux Falls Joe Foss Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$369
BillingsSioux Falls
BIL Billings Logan Intl - FSD Sioux Falls Joe Foss Field
BILFSD
Billings Logan Intl
Tue 9/22
5:57 pm-11:44 pm
1 stop4h 47m
Sioux Falls Joe Foss Field
Sat 9/26
5:04 pm-10:51 pm
1 stop6h 47m
$369
BillingsSioux Falls
BIL Billings Logan Intl - FSD Sioux Falls Joe Foss Field
BILFSD
Billings Logan Intl
Sat 1/30
4:15 pm-10:56 pm
1 stop5h 41m
Sioux Falls Joe Foss Field
Wed 2/3
9:14 am-1:23 pm
1 stop5h 09m
$419
BillingsSioux Falls
BIL Billings Logan Intl - FSD Sioux Falls Joe Foss Field
BILFSD
Billings Logan Intl
Mon 10/5
5:57 pm-11:44 pm
1 stop4h 47m
Sioux Falls Joe Foss Field
Mon 10/12
9:42 am-1:15 pm
1 stop4h 33m
$448
BillingsSioux Falls
BIL Billings Logan Intl - FSD Sioux Falls Joe Foss Field
BILFSD
Billings Logan Intl
Sat 9/19
5:20 am-3:46 pm
2 stops9h 26m
Sioux Falls Joe Foss Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$465
BillingsSioux Falls
BIL Billings Logan Intl - FSD Sioux Falls Joe Foss Field
BILFSD
Billings Logan Intl
Fri 10/2
2:28 pm-8:20 pm
1 stop4h 52m
Sioux Falls Joe Foss Field
Mon 10/5
5:04 pm-9:10 pm
1 stop5h 06m
$516
BillingsSioux Falls
BIL Billings Logan Intl - FSD Sioux Falls Joe Foss Field
BILFSD
Billings Logan Intl
Thu 10/1
12:57 pm-10:51 pm
2 stops8h 54m
Sioux Falls Joe Foss Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$553
BillingsSioux Falls
BIL Billings Logan Intl - FSD Sioux Falls Joe Foss Field
BILFSD
Billings Logan Intl
Tue 12/22
2:54 pm-11:33 am
1 stop19h 39m
Sioux Falls Joe Foss Field
Thu 1/14
8:27 pm-1:38 pm
1 stop18h 11m
$583
BillingsSioux Falls
BIL Billings Logan Intl - FSD Sioux Falls Joe Foss Field
BILFSD
Billings Logan Intl
Thu 10/1
7:29 pm-3:46 pm
3 stops43h 17m
Sioux Falls Joe Foss Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$830
Showing 1-10 of 11 resultsSorted by cheapest first
Compare providers for flights from Billings 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 Billings to Sioux Falls in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Billings-Sioux Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Billings-Sioux Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Billings-Sioux Falls flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Billings-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 Billings-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 Billings to Sioux Falls
Have a flexible travel schedule? Discover the best time to fly to Sioux Falls from Billings with our price prediction graph.
BIL-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 September 8, 2026.
See what other customers who have flown with United Airlines from Billings to Sioux Falls have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.4
Comfort
7.3
Food
6.6
Crew
8.1
Entertainment
7.1
Boarding
7.7
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Overall
7.4
Comfort
7.3
Food
6.6
Crew
8.1
Entertainment
7.1
Boarding
7.7
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Related info for your journey
Find useful and relevant information for your journey from Billings 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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Billings and Sioux Falls flights
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Top airline flying from Billings to Sioux Falls
Discover the top airline that operate flights from Billings 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 September 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$278 | Average$359 | FlexibilityNo cancel fee | On-time69% |