FSD - ONT

$130 Find Cheap Flights from Sioux Falls to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sioux Falls to Ontario departing on 7/20. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sioux Falls to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sioux Falls to Ontario, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$251
Typical prices: $370-$726
Frontier
Sat 10/10Wed 10/14
FSD - ONT • 1 stop
Cheapest one-way
$130
Frontier
Mon 7/20
FSD - ONT • 1 stop
Top airlines
Cheapest • from $251 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Sioux Falls and Ontario. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $494 (round-trip)
Shortest trip • 5h 46m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sioux Falls to Ontario (FSD-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sioux Falls to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sioux Falls to Ontario

Sat, Oct 10 - Wed, Oct 14
Frontier Logo
7:31 pm - 11:55 pm
FSD
-
ONT
6h 24m
1 stop
Frontier Logo
6:00 am - 6:36 pm
ONT
-
FSD
10h 36m
1 stop
$251Frontier
Mon, Jul 27 - Wed, Aug 5
Frontier Logo
8:08 pm - 10:04 am
FSD
-
ONT
15h 56m
1 stop
Frontier Logo
6:00 am - 7:23 pm
ONT
-
FSD
11h 23m
1 stop
$252Frontier
Mon, Jul 27 - Wed, Aug 5
Frontier Logo
8:08 pm - 10:04 am
FSD
-
ONT
15h 56m
1 stop
Frontier Logo
10:49 am - 7:23 pm
ONT
-
FSD
6h 34m
1 stop
$257Frontier
Fri, Aug 14 - Mon, Aug 17
Frontier Logo
8:08 pm - 11:50 pm
FSD
-
ONT
5h 42m
1 stop
Frontier Logo
6:00 am - 7:23 pm
ONT
-
FSD
11h 23m
1 stop
$260Frontier
Mon, Jul 13 - Wed, Jul 22
Frontier Logo
8:08 pm - 10:04 am
FSD
-
ONT
15h 56m
1 stop
Frontier Logo
10:49 am - 7:23 pm
ONT
-
FSD
6h 34m
1 stop
$265Frontier
Fri, Jul 17 - Mon, Jul 20
Frontier Logo
8:08 pm - 10:04 am
FSD
-
ONT
15h 56m
1 stop
Frontier Logo
10:49 am - 7:23 pm
ONT
-
FSD
6h 34m
1 stop
$268Frontier
Fri, Jul 17 - Mon, Jul 20
Frontier Logo
8:08 pm - 11:50 pm
FSD
-
ONT
5h 42m
1 stop
Frontier Logo
6:00 am - 7:23 pm
ONT
-
FSD
11h 23m
1 stop
$280Frontier
Fri, Jul 24 - Wed, Jul 29
Frontier Logo
8:08 pm - 10:04 am
FSD
-
ONT
15h 56m
1 stop
Frontier Logo
6:00 am - 7:23 pm
ONT
-
FSD
11h 23m
1 stop
$285Frontier
Fri, Sep 4 - Mon, Sep 7
Frontier Logo
8:56 pm - 11:50 pm
FSD
-
ONT
4h 54m
1 stop
Frontier Logo
6:00 am - 8:01 pm
ONT
-
FSD
12h 01m
1 stop
$295Frontier
Mon, Jul 13 - Wed, Jul 29
Frontier Logo
8:08 pm - 10:04 am
FSD
-
ONT
15h 56m
1 stop
Frontier Logo
6:00 am - 7:23 pm
ONT
-
FSD
11h 23m
1 stop
$300Frontier
Booking Insights

KAYAK's insights & trends for Sioux Falls to Ontario flights

Get data-powered insights and trends into flights from Sioux Falls to Ontario to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Sioux Falls to Ontario?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Sioux Falls to Ontario departing in October.

What is the cheapest month to fly from Sioux Falls to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sioux Falls to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Sioux Falls to Ontario is September, where tickets cost $0 (return) on average. On the other hand, the most expensive months are October and April, where the average cost of round-trip tickets is $726 and $664 respectively.

Good to know

Low seasonAugust
Cheapest flight$130
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Sioux Falls to Ontario

When to book flights from Sioux Falls to Ontario

Are your dates flexible? Find out the best times to travel from Sioux Falls to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Sioux Falls to Ontario

  • What is the cheapest flight from Sioux Falls to Ontario?

    In the last 5 days, the lowest price for a flight from Sioux Falls to Ontario was $130 for a one-way ticket and $251 for a round-trip.

  • Do I need a passport to fly between Sioux Falls and Ontario?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Sioux Falls to Ontario?

    Sioux Falls airport is called Sioux Falls Joe Foss Field and the only airport in Ontario is Ontario.

  • Which aircraft models fly most regularly from Sioux Falls to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Sioux Falls to Ontario?

    Star Alliance, and oneworld are the airline alliances operating flights between Sioux Falls and Ontario, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Sioux Falls to Ontario, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Sioux Falls to Ontario are United Airlines and American Airlines. With an average price for the route of $465 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $537 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Sioux Falls to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sioux Falls to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sioux Falls to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Sioux Falls is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sioux Falls to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Sioux Falls with another airline. Booking your flights between Sioux Falls and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sioux Falls to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Sioux Falls up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Sioux Falls to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Sioux Falls to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sioux Falls to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9901 reviews
8.1Crew
7.1Entertainment
7.7Boarding
7.3Comfort
6.6Food
Airline reviews

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

8.0 ExcellentWilliam Drew, Jun 2026
HNL - SFO
Read more United Airlines reviews

This was an overnight flight, and in the morning they did know coffee service. How you can throw passengers in a San Francisco airport at 5:40 a.m. in the morning and not giving them Coffee is a crime.

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

Service was professional and quick. Premium economy seat was comfortable given the class

Like: departed and arrived on time. Unlike: Food options for purchase allways bad, 1 of 2 of the crew members not very friendly at all. Seats and leg room aweful. At this point I am thinking on switching to AA.

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

Packed flight, which makes it tough on crew and boarding staff (and the customers of course). But this was great boarding, clear instructions, etc. Traveling on the weekends are always fraught with danger as you have families and less frequent flyers thus more confusion. But this flight went as planned.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

Why wasn't this flight departure scheduled eith another crew so that it could leave on time? When we arrived in Denver we had so little time between flights we had run to the connecting flight. We should received some credit for the inconvenience.

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

The flight attendant was very polite and attentive. The food was good.

Flight cancelled. Twice. And no communication. No gate agent. Went past boarding time and had to go and see email from AA. Airport communication was bad

It was so much better than expected, Ohare is not such a pleasant experience but American Airlines with the new, clean aeroplane and free Wi-Fi was outstanding and the crew so pleasant and helpful.

Was put into a seat right behind the toilet that had no entertainment possible but did have plenty of leg room over noisy part of plane.

Smooth flight. From the early boarding and all were on board before departure time and arrived early in ONT. Great crew. Thank you!!!!

Amazing I love American. I’ll never fly anyone else if I can help it.

I had a carry on and a personal bag. I put my personal item under my seat and on way to the seat I put my bag up. I usually close my eyes and rest as I was on call for last 36 hours. I heard very loud announcements that someone needs to identify their bag. Pretty sure it was not mine until the hostess pointed out my jacket details attached to the bag. I asked why she got my bag out. I got berated and did not want to create a scene. But this person needs to be talked to.

Other than being delayed 5.5 hours and having to get a hotel because I missed my connecting flight, it was an okay flight. No in-flight Wi-Fi or entertainment.

Everything was great except for the wifi was junk. Crew was super friendly and helpful

It was fine. I didn't love the food but it was at least a real attempt at serving a meal, unlike my earlier flight from Nashville to Dallas.

Everything you need to know for your flight from Sioux Falls to Ontario

Information on your arrival and departure airports