ONT - FSD

$145 Find Cheap Flights from Ontario to Sioux Falls

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Sioux Falls departing on 4/13. 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

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

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Sioux Falls 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.

Recent round-trip flight deals from Ontario to Sioux Falls

KAYAK's recommended round-trip deals from the most popular airlines that fly from Ontario to Sioux Falls.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
Frontier Logo
12:59 am - 1:36 pmONT-FSD
10h 37m1 stop
Frontier Logo
2:36 pm - 11:59 pmFSD-ONT
11h 23m1 stop
$248Frontier
Find Deal
Sun, Apr 13 - Mon, Apr 21
United Airlines Logo
5:00 am - 12:37 pmONT-FSD
5h 37m1 stop
United Airlines Logo
11:20 am - 3:17 pmFSD-ONT
5h 57m1 stop
$264United Airlines
Find Deal
Wed, Apr 16 - Sun, Apr 20
Frontier Logo
12:59 am - 1:36 pmONT-FSD
10h 37m1 stop
Frontier Logo
2:36 pm - 11:59 pmFSD-ONT
11h 23m1 stop
$268Frontier
Find Deal
Sun, Apr 13 - Fri, Apr 18
United Airlines Logo
6:00 am - 8:30 pmONT-FSD
12h 30m2 stops
United Airlines Logo
11:20 am - 3:17 pmFSD-ONT
5h 57m1 stop
$269United Airlines
Find Deal
Wed, Apr 16 - Sun, Apr 20
United Airlines Logo
6:48 pm - 10:39 amONT-FSD
13h 51m2 stops
United Airlines Logo
9:23 am - 3:09 pmFSD-ONT
7h 46m1 stop
$274United Airlines
Find Deal
Fri, May 2 - Tue, May 20
Frontier Logo
12:59 am - 1:36 pmONT-FSD
10h 37m1 stop
Frontier Logo
2:36 pm - 11:59 pmFSD-ONT
11h 23m1 stop
$278Frontier
Find Deal
Thu, Apr 17 - Mon, Apr 21
Delta Logo
1:20 pm - 10:57 pmONT-FSD
7h 37m2 stops
Delta Logo
5:05 am - 10:57 amFSD-ONT
7h 52m1 stop
$323Delta
Find Deal
Mon, Apr 14 - Sun, Apr 20
American Airlines Logo
10:51 am - 9:37 pmONT-FSD
8h 46m1 stop
American Airlines Logo
5:45 pm - 9:58 pmFSD-ONT
6h 13m1 stop
$324American Airlines
Find Deal
Fri, May 9 - Mon, May 12
Delta Logo
12:42 pm - 11:16 pmONT-FSD
8h 34m1 stop
Delta Logo
5:05 am - 10:57 amFSD-ONT
7h 52m1 stop
$328Delta
Find Deal
Sat, Apr 12 - Sun, Apr 20
American Airlines Logo
10:00 am - 9:37 pmONT-FSD
9h 37m2 stops
American Airlines Logo
5:45 pm - 9:58 pmFSD-ONT
6h 13m1 stop
$384American Airlines
Find Deal
Fri, May 9 - Mon, May 12

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

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

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

The average price of all round-trip flights from Ontario to Sioux Falls clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Sioux Falls on a Monday, 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 Ontario to Sioux Falls. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Sioux Falls, 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 Ontario to Sioux Falls is January, where tickets cost $348 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $603 and $516 respectively.

Good to know

Low season

February

High season

July

Cheapest flight

$145
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from Ontario to Sioux Falls

When to book flights from Ontario to Sioux Falls

Are your dates flexible? Find out the best times to travel from Ontario to Sioux Falls 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 Ontario to Sioux Falls

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

    In the last 3 days, the lowest price for a flight from Ontario to Sioux Falls was $145 for a one-way ticket and $248 for a round-trip.

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

    No, a passport isn't needed to fly from Ontario to Sioux Falls. However, local authorities might ask for an official ID.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Ontario to Sioux Falls are United Airlines and American Airlines. With an average price for the route of $502 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 $436 and an overall rating of 7.2.

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

    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 Ontario to Sioux Falls.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sioux Falls from Ontario 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 Ontario to Sioux Falls?

    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 Sioux Falls with an airline and back to Ontario with another airline. Booking your flights between Ontario and FSD 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 Ontario to Sioux Falls?

    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 Sioux Falls from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 3 airlines serving from Ontario to Sioux Falls

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Sioux Falls. 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 Ontario to Sioux Falls? 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 8618 reviews
7.7Boarding
6.6Food
7.0Entertainment
7.3Comfort
8.1Crew
Airline reviews

The gate was too far away for the connecting flight

8.0 ExcellentAnonymous, Mar 2025LAX - SFO
Read more United Airlines reviews

The gate was too far away for the connecting flight

Compared with other carriers business class for an overnight was not worth the extra expense.

Easy to board. Flight was super crowded though so I didn't sleep well on that cross country red-eye flight. The aisles seem ot have gotten narrower and the seat smaller whn luggage and people are getting bigger so it would be AWESOME to have more space and breathing room in general ;)

Pilot Erika DeLong made us feel safe and at ease in a frankly scary time to be flying. Her warm smile and greeting and excellent command of the aircraft in foggy bumpy weather helped us all to calm our nerves and get us home safely.

Plenty of room for me and the cat in Premium Economy. Seat was comfortable. Boarding was a breeze. The lady at the special check-in desk was great, super helpful and professional.

Wish movie and music choices changed more often. Mostly same from a month or two ago when I last flew.

It was good. Just that the seats could not be reclined. The people behind were not ready to let the chairs be reclined

Plane left & arrived early- 5 Crew great. Wi fi - paid for 2, only 1 worked - so so. Waste of $. Coolie was good

There was no USB plug in my section of the plane. So I could not charge my phone. Also, there was no screen to watch movie or anything like that. Wish I had known that in advance, I would’ve brought my iPad.

Made all groups except 2 check despite ample bin space. Inflight WiFi and entertainment didn’t work most of the time.

Wonderful crew and early arrival to our destination. It was so nice to have free wifi access and movies too. Thank you!

The plane was late and then sat on the runway for almost 45 minutes before taking off.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

The flight was quick and to the point. The crew just did their job w/o excessive talking and everything was just perfect.

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

Amazingly comfy flight - I had upgraded for a reasonable price and it was worth it. The food also was good.

Had to wait on pilot and crew to depart and had to wait to arrive at the gate because they only had 2 crews working. Delays, delays....Planes just keep getting smaller and tighter and they nickle and dime for everything. When will an airline actually wake up and make flying more enjoyable?

I paid for what I got which was cheap, I brought my own entertainment. I knew what to expect, so I could be prepared. If you’re flying economy, check in early like me. I have no problems with my flight, was on time, staff were friendly, and overall good experience.

After several delays and being rebooked onto a layer flight, I had to speak to three AA agents for baggage claim to get an attendant. All were in foul mode and reluctant to assist or offer any assistance.

Cancelled and declined to find alternatives Earlier flight is 2 days later Sent the cancellation notification very late, wish I knew earlier would have stayed to watch the Miami open final game Very disappointing service

The worst flight of my life. Never will I fly frontier again

Landing in terminal 2, but my luggage is terminal 3. We (and others) were looking for it in terminal 1. We probably missed the crew broadcast, but the communication could have been clearer for non native (or elderly) passengers.

Frontier had yet another flight cancellation. Have never made a complete round trip with this airline without at least one leg getting cancelled. Miserable flights - dirty, uncomfortable planes that apparently always have issues since I've had multiple delays and cancellations with them.

Flight was delayed 3 times, would have been nice to have received text message instead of email notifications. Frontier app wasn’t even updated accordingly, no gate number disclosed. No agent at front desk of gate to inform of delay. Very confused and left if the dark

They changed the timing , first delayed by 4 hours then went back to 40 mins late, we had to run back to airport to not miss our flight. This is ridiculous

No frills for sure. No gate announcements about flight delay, not even water to drink on the flight.

I loked walking out on the tarmac to board and no first class. I didn't like that they have no snacks or onboard wifi to bide your time.

It was a redeye flight, so every passenger just wanted to sleep, but through the entire flight, the flight crew made announcements over the loudspeaker at maximum volume every few minutes making sleep impossible. For example: it’s 2am, and the crew decides to give an extremely detailed announcement about snacks and beverages for sale. And 3am is the perfect time to wake up everyone with a lengthy announcement about how to get a coffee refill and how to take advantage of new offer from frontier for a credit card.

The takeoff was the smoothest I've ever experienced on any airline and this is the first time I've flown on frontier so this was an extremely pleasant surprise!

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

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