$120+ Cheap flights from South Dakota to Ontario (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 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — ONT
Oct 5 — Oct 121
Round-trip
1 adult, Economy
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Find cheap flights from South Dakota 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
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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 South Dakota to Ontario
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Cheapest flights from South Dakota to OntarioExplore the most affordable flight options available from South Dakota to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 5, 2026.
Explore the most affordable flight options available from South Dakota to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 5, 2026.
This Priceline deal was found by Cheapflights users on 9/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:52 pm -
1 stop4h 55m
Fri 10/211:45 am -
1 stop6h 22m
Deal found 9/2![Frontier logo]()
$240
This Expedia deal was found by Cheapflights users on 9/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:52 pm -
1 stop15h 38m
Mon 9/146:15 am -
1 stop11h 52m
Deal found 9/2![Frontier logo]()
$301
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 10/288:05 am -
1 stop6h 09m
Sun 11/16:00 am -
1 stop5h 56m
Deal found 9/2![American Airlines logo]()
$330
This American Airlines deal was found by Cheapflights users on 8/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:53 pm -
1 stop7h 51m
Sun 11/16:00 am -
1 stop5h 56m
Deal found 8/31![American Airlines logo]()
$338
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 9/235:59 pm -
1 stop6h 38m
Sat 9/2610:25 am -
1 stop8h 20m
Deal found 9/2![American Airlines logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Fri 10/308:09 pm -
2 stops29h 42m
Fri 11/66:25 am -
1 stop11h 28m
Deal found 9/3![Multiple Airlines logo]()
$340
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:45 am -
1 stop7h 32m
Sat 10/102:22 pm -
1 stop6h 34m
Deal found 9/4![American Airlines logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Thu 9/2410:02 pm -
1 stop11h 02m
Mon 9/286:15 am -
1 stop11h 52m
Deal found 9/3![Multiple Airlines logo]()
$356
This Delta deal was found by Cheapflights users on 9/3. 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.
Sat 10/311:00 pm -
2 stops11h 43m
Fri 11/61:35 pm -
2 stops7h 47m
Deal found 9/3![Delta logo]()
$360
This American Airlines deal was found by Cheapflights users on 8/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/102:05 pm -
1 stop6h 38m
Sat 10/174:29 pm -
1 stop5h 27m
Deal found 8/31![American Airlines logo]()
$373
This United Airlines deal was found by Cheapflights users on 8/31. 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.
Tue 9/157:00 am -
1 stop6h 50m
Sat 9/195:00 am -
1 stop6h 24m
Deal found 8/31![United Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 9/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/54:31 pm -
1 stop4h 49m
Tue 12/85:00 am -
1 stop7h 03m
Deal found 9/1![United Airlines logo]()
$419
Best flights from South Dakota to OntarioDiscover carefully curated flight deals from South Dakota to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 5, 2026.
Discover carefully curated flight deals from South Dakota to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 5, 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.
Fri 1/82:40 pm -
1 stop6h 40m
Fri 1/155:00 am -
1 stop6h 30m
Deal found 9/4![United Airlines logo]()
$329
This American Airlines deal was found by Cheapflights users on 8/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/232:10 pm -
1 stop6h 07m
Sat 9/2612:37 pm -
1 stop6h 08m
Deal found 8/31![American Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 9/3. 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.
Sat 10/311:00 pm -
2 stops11h 43m
Fri 11/61:35 pm -
2 stops7h 47m
Deal found 9/3![Delta logo]()
$360
This United Airlines deal was found by Cheapflights users on 8/31. 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.
Tue 9/155:22 am -
2 stops9h 39m
Sat 9/195:00 am -
1 stop6h 24m
Deal found 8/31![United Airlines logo]()
$402
This American Airlines deal was found by Cheapflights users on 8/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/176:16 am -
1 stop8h 11m
Sat 1/2312:44 pm -
1 stop6h 38m
Deal found 8/31![American Airlines logo]()
$419
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.
Thu 9/245:30 am -
1 stop7h 39m
Mon 9/286:00 pm -
2 stops14h 19m
Deal found 9/4![Delta logo]()
$434
This United Airlines deal was found by Cheapflights users on 9/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/54:31 pm -
1 stop4h 49m
Tue 12/85:00 am -
1 stop7h 03m
Deal found 9/1![United Airlines logo]()
$419
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.
Wed 10/215:54 pm -
1 stop7h 58m
Sun 10/254:29 pm -
1 stop5h 27m
Deal found 9/5![American Airlines logo]()
$444
This United Airlines deal was found by Cheapflights users on 8/31. 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.
Wed 9/236:00 am -
2 stops8h 12m
Sat 9/2611:10 am -
2 stops10h 34m
Deal found 8/31![United Airlines logo]()
$439
This American Airlines deal was found by Cheapflights users on 8/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/202:21 pm -
1 stop6h 44m
Fri 11/2710:37 am -
1 stop8h 16m
Deal found 8/31![American 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.
Thu 10/17:05 am -
1 stop6h 41m
Wed 10/75:00 am -
1 stop6h 26m
Deal found 9/4![United Airlines logo]()
$472
This United Airlines deal was found by Cheapflights users on 9/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/310:30 am -
2 stops10h 59m
Sat 12/51:40 pm -
1 stop4h 41m
Deal found 9/1![United Airlines logo]()
$475
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 9/239:35 am -
1 stop5h 15m
Mon 9/285:00 am -
1 stop13h 20m
Deal found 9/2![United Airlines logo]()
$502
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 2/197:05 am -
1 stop6h 28m
Sun 2/285:00 am -
1 stop6h 30m
Deal found 9/4![United Airlines logo]()
$543
This United Airlines deal was found by Cheapflights users on 8/31. 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.
Sun 1/172:40 pm -
1 stop6h 40m
Fri 1/226:53 pm -
2 stops15h 20m
Deal found 8/31![United Airlines logo]()
$566
Last-minute flights from South Dakota to OntarioDiscover last-minute flight deals from South Dakota to Ontario. Data last updated September 5, 2026 and is based on user searches.
Discover last-minute flight deals from South Dakota to Ontario. Data last updated September 5, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 9/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:52 pm -
1 stop15h 38m
Mon 9/146:15 am -
1 stop11h 52m
Deal found 9/2![Frontier logo]()
$301
This United Airlines deal was found by Cheapflights users on 8/31. 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.
Tue 9/157:00 am -
1 stop6h 50m
Sat 9/195:00 am -
1 stop6h 24m
Deal found 8/31![United Airlines logo]()
$379
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 9/235:59 pm -
1 stop6h 38m
Sat 9/2610:25 am -
1 stop8h 20m
Deal found 9/2![American Airlines logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Thu 9/2410:02 pm -
1 stop11h 02m
Mon 9/286:15 am -
1 stop11h 52m
Deal found 9/3![Multiple Airlines logo]()
$356
This Priceline deal was found by Cheapflights users on 9/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:52 pm -
1 stop4h 55m
Fri 10/211:45 am -
1 stop6h 22m
Deal found 9/2![Frontier logo]()
$240
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:45 am -
1 stop7h 28m
Mon 10/511:59 pm -
1 stop8h 55m
Deal found 9/4![American Airlines logo]()
$419
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:45 am -
1 stop7h 32m
Sat 10/102:22 pm -
1 stop6h 34m
Deal found 9/4![American Airlines logo]()
$352
This American Airlines deal was found by Cheapflights users on 8/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/102:05 pm -
1 stop6h 38m
Sat 10/174:29 pm -
1 stop5h 27m
Deal found 8/31![American Airlines logo]()
$373
This American Airlines deal was found by Cheapflights users on 8/31. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2712:53 pm -
1 stop7h 51m
Sun 11/16:00 am -
1 stop5h 56m
Deal found 8/31![American Airlines logo]()
$338
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Wed 10/288:05 am -
1 stop6h 09m
Sun 11/16:00 am -
1 stop5h 56m
Deal found 9/2![American Airlines logo]()
$330
This Kiwi.com deal was found by Cheapflights users on 9/3. 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.
Fri 10/308:09 pm -
2 stops29h 42m
Fri 11/66:25 am -
1 stop11h 28m
Deal found 9/3![Multiple Airlines logo]()
$340
This Delta deal was found by Cheapflights users on 9/3. 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.
Sat 10/311:00 pm -
2 stops11h 43m
Fri 11/61:35 pm -
2 stops7h 47m
Deal found 9/3![Delta logo]()
$360
One-way flights from South Dakota to OntarioSearch for one-way flight options from South Dakota to Ontario. Find affordable one-way fares based on user searches. Data last updated September 5, 2026.
Search for one-way flight options from South Dakota to Ontario. Find affordable one-way fares based on user searches. Data last updated September 5, 2026.
This Booking.com deal was found by Cheapflights users on 9/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/258:52 pm -
1 stop4h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$120
This Frontier deal was found by Cheapflights users on 9/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/118:52 pm -
1 stop4h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 9/1. 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 9/231:05 pm -
2 stops23h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Multiple Airlines logo]()
$140
This Frontier deal was found by Cheapflights users on 8/31. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/148:52 pm -
1 stop4h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 9/1. 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.
Mon 10/58:52 pm -
2 stops21h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Frontier logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 9/1. 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.
Mon 10/512:41 pm -
3 stops30h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Multiple Airlines logo]()
$189
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Sat 9/265:59 pm -
1 stop6h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![American Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Sat 9/269:42 am -
2 stops10h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![United Airlines logo]()
$334
This United Airlines deal was found by Cheapflights users on 9/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:00 am -
1 stop6h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![United Airlines logo]()
$350
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Sun 9/276:00 am -
2 stops8h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![United Airlines logo]()
$365
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Tue 9/156:00 am -
1 stop7h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![American Airlines logo]()
$387
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Thu 9/107:00 am -
1 stop6h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![United Airlines logo]()
$428
Find flight deals from South Dakota to Ontario
Keep the following information in mind while searching for South Dakota to Ontario flight deals. Data was last updated September 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $240 (Priceline) |
One-way from | $120 (Booking.com) |
Popular in | June |
Cheapest in | November |
Average price | $342 |
Cheapflights Fare Finder
Customize your flight search to find flights from South Dakota 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 September 5, 2026.
Use the filters below to find and compare flights from South Dakota to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
Sioux FallsOntario
FSD Sioux Falls Joe Foss Field - ONT Ontario
FSDONT
Sioux Falls Joe Foss Field
Fri 9/25
8:52 pm-11:47 pm
1 stop4h 55m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$120
Sioux FallsOntario
FSD Sioux Falls Joe Foss Field - ONT Ontario
FSDONT
Sioux Falls Joe Foss Field
Fri 9/11
8:52 pm-11:47 pm
1 stop4h 55m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$134
Sioux FallsOntario
FSD Sioux Falls Joe Foss Field - ONT Ontario
FSDONT
Sioux Falls Joe Foss Field
Mon 9/14
8:52 pm-11:47 pm
1 stop4h 55m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$145
Sioux FallsOntario
FSD Sioux Falls Joe Foss Field - ONT Ontario
FSDONT
Sioux Falls Joe Foss Field
Mon 10/5
8:52 pm-4:46 pm
2 stops21h 54m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$185
Sioux FallsOntario
FSD Sioux Falls Joe Foss Field - ONT Ontario
FSDONT
Sioux Falls Joe Foss Field
Tue 9/29
5:04 pm-8:58 pm
1 stop5h 54m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$329
Sioux FallsOntario
FSD Sioux Falls Joe Foss Field - ONT Ontario
FSDONT
Sioux Falls Joe Foss Field
Fri 10/9
5:54 pm-11:52 pm
1 stop7h 58m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$329
Sioux FallsOntario
FSD Sioux Falls Joe Foss Field - ONT Ontario
FSDONT
Sioux Falls Joe Foss Field
Sat 12/12
5:07 pm-8:20 pm
1 stop5h 13m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$329
Rapid CityOntario
RAP Rapid City - ONT Ontario
RAPONT
Rapid City
Fri 1/8
2:40 pm-8:20 pm
1 stop6h 40m
Ontario
Fri 1/15
5:00 am-12:30 pm
1 stop6h 30m
$329
Sioux FallsOntario
FSD Sioux Falls Joe Foss Field - ONT Ontario
FSDONT
Sioux Falls Joe Foss Field
Wed 9/23
2:10 pm-6:17 pm
1 stop6h 07m
Ontario
Sat 9/26
12:37 pm-8:45 pm
1 stop6h 08m
$339
Rapid CityOntario
RAP Rapid City - ONT Ontario
RAPONT
Rapid City
Thu 9/24
7:05 am-12:46 pm
1 stop6h 41m
Ontario
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$350
Showing 1-10 of 29 resultsSorted by cheapest first
Best time to book a flight from South Dakota to Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from South Dakota with our price prediction graph.
FSD-ONT
RAP-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 South Dakota to Ontario
USSD-ONT
FSD-ONT
RAP-ONT
What is the cheapest month to book a flight from South Dakota to Ontario?
Currently, October is the cheapest month in which you can book a flight from South Dakota to Ontario (average of $329). Flying from South Dakota 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.
Related info for your journey
Find useful and relevant information for your journey from South Dakota 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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Alternative routes for South Dakota to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from South Dakota to Ontario by cabin class
Find flights from South Dakota to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 September 5, 2026.
South Dakota and Ontario flights
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Popular flight searches
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South Dakota to Ontario flights
Consider these flights traveling from South Dakota to Ontario.
Top 2 airlines flying from South Dakota to Ontario
Discover the top 2 airlines that operate flights from South Dakota 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 September 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$268 | Average$440 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$329 | Average$531 | FlexibilityNo cancel fee | On-time71% |