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Cheap flights from Sioux City to Ontario from C$ 781

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Sioux City to Ontario departing on 5/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Find the cheapest flights from Sioux City to Ontario

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
12:45 p.m. - 4:39 p.m.
SUX
-
YYZ
26h 54m1 stop
United Airlines Logo
4:50 p.m. - 5:41 p.m.
YYZ
-
SUX
25h 51m1 stop
C$ 781United Airlines
Thu, 5 Feb - Thu, 12 Feb
United Airlines Logo
12:45 p.m. - 9:58 a.m.
SUX
-
YYZ
20h 13m1 stop
United Airlines Logo
2:15 p.m. - 5:41 p.m.
YYZ
-
SUX
28h 26m2 stops
C$ 788United Airlines
Thu, 5 Feb - Thu, 12 Feb
United Airlines Logo
12:45 p.m. - 8:35 a.m.
SUX
-
YYZ
18h 50m2 stops
United Airlines Logo
2:15 p.m. - 5:41 p.m.
YYZ
-
SUX
28h 26m2 stops
C$ 801United Airlines
Thu, 5 Feb - Thu, 12 Feb
United Airlines Logo
12:45 p.m. - 4:02 p.m.
SUX
-
YYZ
26h 17m1 stop
United Airlines Logo
5:30 p.m. - 5:28 p.m.
YYZ
-
SUX
24h 58m1 stop
C$ 837United Airlines
Wed, 14 Jan - Sat, 17 Jan
United Airlines Logo
12:45 p.m. - 4:02 p.m.
SUX
-
YYZ
26h 17m1 stop
United Airlines Logo
12:10 p.m. - 5:28 p.m.
YYZ
-
SUX
30h 18m2 stops
C$ 844United Airlines
Wed, 14 Jan - Sat, 17 Jan
United Airlines Logo
12:45 p.m. - 10:10 p.m.
SUX
-
YYZ
8h 25m2 stops
United Airlines Logo
2:15 p.m. - 5:28 p.m.
YYZ
-
SUX
28h 13m2 stops
C$ 914United Airlines
Wed, 14 Jan - Sat, 17 Jan

United Airlines flights from Sioux City to Region of Ontario

Our best United Airlines deals on Sioux City to Region of Ontario flight tickets
United Airlines
5 Feb
SUX12:45 p.m.Sioux City Sioux Gateway
26h 54m
1 stop
YYZ4:39 p.m.Toronto Pearson Intl
12 Feb
YYZ4:50 p.m.Toronto Pearson Intl
25h 51m
1 stop
SUX5:41 p.m.Sioux City Sioux Gateway
C$ 781
Find similar
United Airlines
5 Feb
SUX12:45 p.m.Sioux City Sioux Gateway
20h 13m
1 stop
YYZ9:58 a.m.Toronto Pearson Intl
12 Feb
YYZ2:15 p.m.Toronto Pearson Intl
28h 26m
2 stops
SUX5:41 p.m.Sioux City Sioux Gateway
C$ 788
Find similar
United Airlines
14 Jan
SUX12:45 p.m.Sioux City Sioux Gateway
9h 35m
1 stop
YYZ11:20 p.m.Toronto Pearson Intl
17 Jan
YYZ3:30 p.m.Toronto Pearson Intl
26h 58m
1 stop
SUX5:28 p.m.Sioux City Sioux Gateway
C$ 796
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Sioux City to Region of 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, momondo users made 96,600 searches. Data last updated 23 December 2025.
Use the filters below to find and compare flights from Sioux City to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Sioux CityToronto

SUX - YYZ

SUXYYZ

Sioux City Sioux Gateway

Thu 5/2

12:45 p.m.-4:39 p.m.

1 stop26h 54m

Toronto Pearson Intl

Thu 12/2

4:50 p.m.-5:41 p.m.

1 stop25h 51m

C$ 781

Sioux CityToronto

SUX - YYZ

SUXYYZ

Sioux City Sioux Gateway

Thu 5/2

12:45 p.m.-9:58 a.m.

1 stop20h 13m

Toronto Pearson Intl

Thu 12/2

2:15 p.m.-5:41 p.m.

2 stops28h 26m

C$ 788

Sioux CityToronto

SUX - YYZ

SUXYYZ

Sioux City Sioux Gateway

Thu 5/2

12:45 p.m.-8:35 a.m.

2 stops18h 50m

Toronto Pearson Intl

Thu 12/2

2:15 p.m.-5:41 p.m.

2 stops28h 26m

C$ 801

Sioux CityToronto

SUX - YYZ

SUXYYZ

Sioux City Sioux Gateway

Wed 14/1

12:45 p.m.-4:02 p.m.

1 stop26h 17m

Toronto Pearson Intl

Sat 17/1

5:30 p.m.-5:28 p.m.

1 stop24h 58m

C$ 837

Sioux CityToronto

SUX - YYZ

SUXYYZ

Sioux City Sioux Gateway

Wed 14/1

12:45 p.m.-4:02 p.m.

1 stop26h 17m

Toronto Pearson Intl

Sat 17/1

12:10 p.m.-5:28 p.m.

2 stops30h 18m

C$ 844

Sioux CityToronto

SUX - YYZ

SUXYYZ

Sioux City Sioux Gateway

Wed 14/1

12:45 p.m.-10:10 p.m.

2 stops8h 25m

Toronto Pearson Intl

Sat 17/1

2:15 p.m.-5:28 p.m.

2 stops28h 13m

C$ 914

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

Cheap Sioux City to Region of Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sioux City to Region of Ontario

Fastest flight time

9h 35m

Direct flights

None
The fastest flight from Sioux City to Region of Ontario takes 9h 35m
There are no direct flights from Sioux City to Region of Ontario. There are no popular flight routes from Sioux City to Region of Ontario.
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  • When did momondo last update prices for flights from Sioux City Sioux Gateway Airport to Ontario?

    Prices for flights from Sioux City Sioux Gateway Airport to Ontario refresh daily.

  • How old do you have to be to fly from Sioux City Sioux Gateway Airport to Ontario?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sioux City Sioux Gateway Airport to Ontario.

  • What documentation or ID do you need to fly to Ontario?

    The travel and health documents you'll need for your trip to Ontario may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • How do I get Price Alerts for flights from Sioux City to Region of Ontario?

    Confirm your travel details to search for the latest offers for flights from Sioux City to Region of Ontario. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

  • How can I save money on flights from Sioux City to Region of Ontario with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Why use momondo?

Why should I use momondo to find a flight deal from Sioux City to Ontario?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Sioux City.

Can I find flights from Sioux City to Ontario with flexible booking policies on momondo?

Flights from Sioux City to Ontario with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Sioux City to Ontario?

Once you have performed a search for Sioux City to Ontario flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Sioux City to Ontario right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Ontario, momondo offers a useful price alert feature which will track prices for flights to Ontario from Sioux City and alert you when they change.

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