$220+ Cheap flights from Sioux Falls to Ontario (FSD - ONT)
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 11/23. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — ONT
Dec 5 — Dec 121
Round-trip
1 adult, Economy
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Find cheap flights from Sioux Falls to Ontario 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 Sioux Falls to Ontario
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Best
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Cheapest flights from Sioux Falls to OntarioExplore the most affordable flight options available from Sioux Falls to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2026.
Explore the most affordable flight options available from Sioux Falls to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Sat 12/122:37 pm -
1 stop5h 54m
Sat 1/93:33 pm -
1 stop17h 32m
Deal found 11/2![Multiple Airlines logo]()
$276
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Wed 11/2511:31 am -
1 stop10h 05m
Tue 12/12:00 pm -
1 stop22h 47m
Deal found 11/1![Multiple Airlines logo]()
$338
This American Airlines deal was found by Cheapflights users on 11/2. 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.
Sun 12/132:26 pm -
1 stop6h 39m
Sat 1/91:24 pm -
1 stop6h 15m
Deal found 11/2![American Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 11/4. 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.
Wed 12/29:24 am -
2 stops13h 14m
Sat 12/55:00 am -
1 stop5h 24m
Deal found 11/4![United Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 11/3. 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.
Sun 12/135:02 am -
2 stops9h 15m
Sat 1/96:00 am -
2 stops8h 43m
Deal found 11/3![Delta logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Wed 12/2312:38 pm -
1 stop11h 15m
Fri 1/110:23 am -
1 stop23h 25m
Deal found 11/3![Multiple Airlines logo]()
$373
Best flights from Sioux Falls to OntarioDiscover carefully curated flight deals from Sioux Falls to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 5, 2026.
Discover carefully curated flight deals from Sioux Falls to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 5, 2026.
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/106:00 am -
2 stops11h 35m
Sat 1/91:42 pm -
1 stop4h 55m
Deal found 11/2![United Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 11/2. 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 12/1212:59 pm -
2 stops12h 00m
Sat 1/96:00 am -
2 stops8h 43m
Deal found 11/2![Delta logo]()
$369
This American Airlines deal was found by Cheapflights users on 11/1. 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.
Sun 12/138:00 am -
1 stop6h 39m
Sat 1/96:20 am -
2 stops10h 56m
Deal found 11/1![American Airlines logo]()
$441
This Delta deal was found by Cheapflights users on 11/2. 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.
Sun 12/135:02 am -
2 stops9h 15m
Sat 1/96:00 am -
2 stops8h 43m
Deal found 11/2![Delta logo]()
$369
This United Airlines deal was found by Cheapflights users on 11/4. 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.
Wed 12/29:24 am -
2 stops10h 12m
Sat 12/56:00 am -
2 stops8h 26m
Deal found 11/4![United Airlines logo]()
$392
This United Airlines deal was found by Cheapflights users on 11/3. 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 12/119:24 am -
2 stops10h 12m
Mon 12/1411:20 am -
2 stops10h 10m
Deal found 11/3![United Airlines logo]()
$430
This United Airlines deal was found by Cheapflights users on 11/2. 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 4/19:14 am -
2 stops10h 33m
Thu 4/81:00 pm -
1 stop5h 46m
Deal found 11/2![United Airlines logo]()
$474
This United Airlines deal was found by Cheapflights users on 10/31. 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 12/49:24 am -
1 stop5h 10m
Thu 12/101:40 pm -
1 stop4h 53m
Deal found 10/31![United Airlines logo]()
$504
Last-minute flights from Sioux Falls to OntarioDiscover last-minute flight deals from Sioux Falls to Ontario. Data last updated November 5, 2026 and is based on user searches.
Discover last-minute flight deals from Sioux Falls to Ontario. Data last updated November 5, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 11/1. 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.
Wed 11/2511:31 am -
1 stop10h 05m
Tue 12/12:00 pm -
1 stop22h 47m
Deal found 11/1![Multiple Airlines logo]()
$338
This United Airlines deal was found by Cheapflights users on 11/4. 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.
Wed 12/29:24 am -
2 stops13h 14m
Sat 12/55:00 am -
1 stop5h 24m
Deal found 11/4![United Airlines logo]()
$364
This Kiwi.com deal was found by Cheapflights users on 11/2. 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.
Sat 12/122:37 pm -
1 stop5h 54m
Sat 1/93:33 pm -
1 stop17h 32m
Deal found 11/2![Multiple Airlines logo]()
$276
This American Airlines deal was found by Cheapflights users on 11/1. 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.
Sun 12/132:26 pm -
1 stop6h 39m
Sat 1/91:24 pm -
1 stop6h 15m
Deal found 11/1![American Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 11/3. 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.
Sun 12/135:02 am -
2 stops9h 15m
Sat 1/96:00 am -
2 stops8h 43m
Deal found 11/3![Delta logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 11/3. 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.
Wed 12/2312:38 pm -
1 stop11h 15m
Fri 1/110:23 am -
1 stop23h 25m
Deal found 11/3![Multiple Airlines logo]()
$373
One-way flights from Sioux Falls to OntarioSearch for one-way flight options from Sioux Falls to Ontario. Find affordable one-way fares based on user searches. Data last updated November 5, 2026.
Search for one-way flight options from Sioux Falls to Ontario. Find affordable one-way fares based on user searches. Data last updated November 5, 2026.
This American Airlines deal was found by Cheapflights users on 11/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/235:53 pm -
1 stop8h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![American Airlines logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Mon 11/236:38 pm -
3 stops38h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$248
This Delta deal was found by Cheapflights users on 11/2. 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.
Wed 12/168:27 am -
2 stops10h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Delta logo]()
$344
This United Airlines deal was found by Cheapflights users on 11/3. 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 11/279:32 am -
1 stop5h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![United Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/175:50 am -
2 stops11h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 10/31. 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 11/195:06 pm -
1 stop5h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 11/4. 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.
Tue 12/299:00 am -
1 stop5h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![United Airlines logo]()
$488
This United Airlines deal was found by Cheapflights users on 11/4. 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 12/251:30 pm -
2 stops11h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![United Airlines logo]()
$493
Find flight deals from Sioux Falls to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Sioux Falls (FSD) to Ontario (ONT). 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 November 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $276 (Kiwi.com) |
One-way from | $220 (American Airlines) |
Popular in | April |
Cheapest in | October |
Average price | $537 |
Cheapflights Fare Finder
Customize your flight search to find flights from Sioux Falls to Ontario 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 November 5, 2026.
Use the filters below to find and compare flights from Sioux Falls to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Sioux FallsOntario
FSD Sioux Falls Joe Foss Field - ONT Ontario
FSDONT
Sioux Falls Joe Foss Field
Mon 11/23
12:05 pm-8:30 am
2 stops22h 25m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$285
Sioux FallsOntario
FSD Sioux Falls Joe Foss Field - ONT Ontario
FSDONT
Sioux Falls Joe Foss Field
Wed 12/16
8:27 am-5:15 pm
2 stops10h 48m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$344
Sioux FallsOntario
FSD Sioux Falls Joe Foss Field - ONT Ontario
FSDONT
Sioux Falls Joe Foss Field
Thu 12/10
6:00 am-3:35 pm
2 stops11h 35m
Ontario
Sat 1/9
1:42 pm-8:37 pm
1 stop4h 55m
$364
Sioux FallsOntario
FSD Sioux Falls Joe Foss Field - ONT Ontario
FSDONT
Sioux Falls Joe Foss Field
Sat 12/12
12:59 pm-10:59 pm
2 stops12h 00m
Ontario
Sat 1/9
6:00 am-4:43 pm
2 stops8h 43m
$369
Sioux FallsOntario
FSD Sioux Falls Joe Foss Field - ONT Ontario
FSDONT
Sioux Falls Joe Foss Field
Sun 12/13
5:02 am-12:17 pm
2 stops9h 15m
Ontario
Sat 1/9
6:00 am-4:43 pm
2 stops8h 43m
$369
Sioux FallsOntario
FSD Sioux Falls Joe Foss Field - ONT Ontario
FSDONT
Sioux Falls Joe Foss Field
Wed 12/2
9:24 am-5:36 pm
2 stops10h 12m
Ontario
Sat 12/5
6:00 am-4:26 pm
2 stops8h 26m
$392
Quickest round-trip
Sioux FallsOntario
FSD Sioux Falls Joe Foss Field - ONT Ontario
FSDONT
Sioux Falls Joe Foss Field
Fri 11/27
9:32 am-12:33 pm
1 stop5h 01m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$394
Sioux FallsOntario
FSD Sioux Falls Joe Foss Field - ONT Ontario
FSDONT
Sioux Falls Joe Foss Field
Fri 12/25
9:00 am-12:42 pm
1 stop5h 42m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$399
Sioux FallsOntario
FSD Sioux Falls Joe Foss Field - ONT Ontario
FSDONT
Sioux Falls Joe Foss Field
Thu 12/17
9:00 am-12:42 pm
1 stop5h 42m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$404
Sioux FallsOntario
FSD Sioux Falls Joe Foss Field - ONT Ontario
FSDONT
Sioux Falls Joe Foss Field
Fri 12/11
9:24 am-5:36 pm
2 stops10h 12m
Ontario
Mon 12/14
11:20 am-11:30 pm
2 stops10h 10m
$430
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from Sioux Falls to Ontario
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 Sioux Falls to Ontario in November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Sioux Falls-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sioux Falls-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sioux Falls-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Sioux Falls-Ontario 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 Sioux Falls-Ontario 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 Sioux Falls to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Sioux Falls with our price prediction graph.
FSD-ONT
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.
Cheapflights Insights
Everything you need to know about your flight from Sioux Falls to Ontario
Prices
More
What is the cheapest month to book a flight from Sioux Falls to Ontario?
Currently, October is the cheapest month in which you can book a flight from Sioux Falls to Ontario (average of $329). Flying from Sioux Falls to Ontario in April is currently the most expensive (average of $664). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Sioux Falls to Ontario?
Airfare is below average for this route at the moment.
Sioux Falls to Ontario flights typically cost between $419 and $568 in December.The cheapest round-trip price found within the last 5 days was $276 on Multiple Airlines (Dec 12-Jan 9).
What’s the top layover airport for flights from Sioux Falls to Ontario?
Share of 1-stop round-trip flights from Sioux Falls to Ontario chosen by Cheapflights users in the past 12 months, using the same layover each way.
Denver (DEN) – chosen by Cheapflights users on 67% of 1-stop itineraries from Sioux Falls to Ontario on Cheapflights.
What’s the cheapest layover airport for flights from Sioux Falls to Ontario?
Average round-trip fare for 1-stop flights from Sioux Falls to Ontario, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $424.
What’s the fastest layover option from Sioux Falls to Ontario?
Shortest average travel time for 1-stop one-way flights from Sioux Falls to Ontario, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 5h 26m.
Which airport typically offers the quickest layover for flights from Sioux Falls to Ontario?
Average layover duration for 1-stop one-way flights from Sioux Falls to Ontario, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 1h 29m.
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated November 5, 2026.
Peruse reviews from past customers who have flown with United Airlines and American Airlines from Sioux Falls to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.7
Food
6.7
Overall
7.3
Crew
8.1
Entertainment
7.1
Comfort
7.3
Reviews
1 / 20
8.0
ExcellentJonathan,Jun 2024
FSD - ORD
Boarding
7.7
Food
6.7
Overall
7.3
Crew
8.1
Entertainment
7.1
Comfort
7.3
Reviews
1 / 20
8.0
ExcellentJonathan,Jun 2024
FSD - ORD
Boarding
7.7
Food
6.7
Overall
7.3
Crew
8.1
Entertainment
7.1
Comfort
7.3
Reviews
1 / 20
8.0
ExcellentJonathan,Jun 2024
FSD - ORD
Related info for your journey
Find useful and relevant information for your journey from Sioux Falls to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on November 5, 2026.
Sioux Falls and Ontario flights
Browse other Sioux Falls and Ontario flight options. Last updated on November 5, 2026.
Other flights from Sioux Falls
Browse through other flights departing from Sioux Falls. Flights are based on user searches made on Cheapflights and were last updated on November 5, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Sioux Falls to Ontario
Discover the top 2 airlines that operate flights from Sioux Falls to Ontario. 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 November 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$279 | Average$501 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$329 | Average$512 | FlexibilityNo cancel fee | On-time71% |