FSD - ONT

$108 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 7/23. 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

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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Flights 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

Thu, Jul 10 - Sat, Jul 12
Frontier Logo
2:57 pm - 11:50 pmFSD-ONT
10h 53m1 stop
Frontier Logo
12:59 am - 2:02 pmONT-FSD
11h 03m1 stop
$238Frontier
Find Deal
Wed, Aug 13 - Thu, Aug 21
Frontier Logo
7:48 pm - 11:50 pmFSD-ONT
6h 02m1 stop
Frontier Logo
12:59 am - 1:23 pmONT-FSD
10h 24m1 stop
$245Frontier
Find Deal
Thu, Jul 31 - Sun, Aug 3
Frontier Logo
2:57 pm - 11:50 pmFSD-ONT
10h 53m1 stop
Frontier Logo
12:59 am - 6:37 pmONT-FSD
15h 38m1 stop
$252Frontier
Find Deal
Fri, Aug 8 - Sun, Aug 10
Frontier Logo
7:32 pm - 9:09 amFSD-ONT
15h 37m1 stop
Frontier Logo
12:59 am - 6:37 pmONT-FSD
15h 38m1 stop
$262Frontier
Find Deal
Fri, Jul 25 - Sun, Jul 27
Frontier Logo
7:32 pm - 9:09 amFSD-ONT
15h 37m1 stop
Frontier Logo
12:59 am - 6:37 pmONT-FSD
15h 38m1 stop
$265Frontier
Find Deal
Wed, Aug 13 - Fri, Aug 22
American Airlines Logo
2:35 pm - 5:52 pmFSD-ONT
5h 17m1 stop
American Airlines Logo
8:14 am - 4:35 pmONT-FSD
6h 21m1 stop
$269American Airlines
Find Deal
Wed, Aug 13 - Fri, Aug 22
American Airlines Logo
7:01 am - 5:52 pmFSD-ONT
12h 51m2 stops
American Airlines Logo
8:14 am - 4:35 pmONT-FSD
6h 21m1 stop
$274American Airlines
Find Deal
Tue, Oct 7 - Tue, Oct 14
Delta Logo
1:20 pm - 11:46 pmFSD-ONT
12h 26m2 stops
Delta Logo
5:51 pm - 10:05 amONT-FSD
14h 14m2 stops
$374Delta
Find Deal
Thu, Nov 20 - Mon, Nov 24
United Airlines Logo
8:47 am - 12:33 pmFSD-ONT
5h 46m1 stop
United Airlines Logo
5:40 am - 12:31 pmONT-FSD
4h 51m1 stop
$399United Airlines
Find Deal
Thu, Nov 20 - Mon, Nov 24
United Airlines Logo
6:00 am - 12:37 pmFSD-ONT
8h 37m2 stops
United Airlines Logo
5:40 am - 12:31 pmONT-FSD
4h 51m1 stop
$404United Airlines
Find Deal
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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?

What’s the cheapest day of the week to fly from Sioux Falls to Ontario?

The average price of all round-trip flights from Sioux Falls to Ontario clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Ontario on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Sioux Falls to Ontario. For your return ticket, we recommend flying on a Monday and avoiding Sundays for the best deals.

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 May, where tickets cost $239 (return) on average. On the other hand, the most expensive months are September and December, where the average cost of round-trip tickets is $970 and $582 respectively.

Good to know

Low seasonMay
High seasonJuly
Cheapest flight$108
Best time to beat the crowds with an average 46% drop in price.
Most popular time to fly with an average 13% 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 3 days, the lowest price for a flight from Sioux Falls to Ontario was $108 for a one-way ticket and $238 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, oneworld, and SkyTeam are the airline alliances operating flights between Sioux Falls and Ontario, with SkyTeam 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 $428 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 $383 and an overall rating of 7.2.

  • 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 8849 reviews
7.7Boarding
7.0Entertainment
7.3Comfort
6.6Food
8.1Crew
Airline reviews

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

2.0 MediocreWilliam, Jun 2025SFO - SAN
Read more United Airlines reviews

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

My flight was delayed a very short period of time but they did not hold my connecting flight to San Diego, also through United. So they closed the doors before we got off our plane. They would only have to help the door open for another five to ten minutes. So I missed a court deadline for a manditory mediation settlement conference for my client. I had to get an associate to be there in person and be on the phone with him relaying what he needs to do the entire time. The court was very upset with me and so was my client. United cannot be trusted.

We were given vouchers we couldn’t use with a 5.5 hour delay

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.

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

United out of SFO is having issues with catering so none of our meals were loaded on the plane and no offer of compensation for our tickets purchased was offered.

A bit rush for transit. Food and entertainment are not available

The gate was too far away for the connecting flight

This was a horrible experience. For a first class experience, my chair was held together by 3M tape - and I have a photo. The crew weren’t very attentive, somewhat dismissive and forgot my drink and snack, the chair reclined about 3 inches on a 6-hour cross country flight. I was also not informed that there was no lounge available in Newark airport because of renovations, so all around this was one of the worst experiences and I would actively avoid both American and Alaska Air going forward.

Boarding was very efficient. Everyone got on board and we got on our way very quickly. It was frustrating that the entertainment app was not functioning properly. I was not able to activate some of the movies offered. The crew on this flight appears to be pretty grumpy. They had no smile on their faces. I felt like they were doing us a favor for being there.

Loved the staff, boarding and drink options! Wish the comfort of the seat could have been better nevertheless

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

Long 5 hour and 45 min flight and only one drink service and cookie snack

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.

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

Flight boarded from Gate 39 at OGG, the farthest gate in the terminal. There were no Hawaiian themed amenities for the flight. The first class service was mediocre at best; I received not special welcome or recognition as an executive platinum member of American Advantage program. The flight attendants were more concerned with their cell phones than saying "thank you" to the passengers as we disembarked. Fortunately, the flight arrived at LAX a few minutes early.

Bigger seats. Board back to front! Disembark front to back!

Extraordinary service in business class, and very good breakfast and snacks. A really lovely flight.

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

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