Cheap flights from Ontario to South Dakota from $106
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to South Dakota departing on 6/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Frontier flights from Ontario to South Dakota
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How to get the cheapest flight ticket from Ontario to South Dakota
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest day to depart on your flight to South Dakota?
The cheapest day to depart from Ontario to South Dakota is on a Monday. Travelers who choose to depart for South Dakota on a Monday will often find tickets for as low as $368. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $699. These prices are subject to change though, so be sure to set up a Price Alert for flights to South Dakota.
What is the cheapest time of day to depart on your flight to South Dakota?
The cheapest time of day to fly to South Dakota is in the afternoon when flights can be purchased for as low as $212. At noon is when there is more demand to fly to South Dakota, so prices are often more expensive at around $533 per ticket.
What is the cheapest airline that flies from Ontario to South Dakota?
Frontier, Delta, and United Airlines are the most popular carriers operating from Ontario to South Dakota
What airlines fly to South Dakota?
United Airlines, American Airlines and Allegiant Air are the top three most popular airlines that fly to South Dakota from Ontario according to our data. United Airlines is the first choice among our users, with 59% of people opting to fly with this airline when traveling to South Dakota. Keep in mind that there are 5 different airlines that fly to South Dakota on a routine basis, so you have a few additional options to choose from.
Cheap Ontario to South Dakota flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Ontario to South Dakota
When did momondo last update prices for flights from Ontario Airport to South Dakota?
Prices for flights from Ontario Airport to South Dakota were last updated today.
How many operators does momondo search for flights from Ontario Airport to South Dakota?
As of June 2025, there are 3 operators available to choose from for flights from Ontario Airport to South Dakota.
How old do you have to be to fly from Ontario Airport to South Dakota?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to South Dakota.
What documentation or ID do you need to fly to South Dakota?
The travel and health documents required for your trip to South Dakota can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at South Dakota. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Best airlines flying from Ontario to South Dakota
Compare and see reviews for airlines that fly from Ontario to South Dakota with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $118 | Free Cancellation | Rating 5.9 3,296 reviews | |||
| PriceFrom $268 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $284 | Free Cancellation | Rating 7.4 8,801 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Ontario to South Dakota?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to South Dakota. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Ontario to South Dakota with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Ontario to South Dakota flights to just show those with flexible booking policies.
How can momondo help me find flights from Ontario to South Dakota?
momondo provides multiple filters to help you find the best flight to South Dakota from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Ontario to South Dakota right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Ontario to South Dakota flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.