Cheap flights from Sioux City to Ontario (SUX - ONT)

Know your dates, get live prices in seconds:

From
To
Fri 7/22
Thu 7/28
Any month
Compare vs. Cheapflights |
From
To
Depart
Fri 7/22
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

How to find the cheapest flight from
Sioux City (SUX) to Ontario (ONT)

All the information you need to plan the best SUX to ONT flight in 2022: compare Sioux City to Ontario flight prices with the expected peak season, weather and rainfall in Ontario.
When is the cheapest time to fly from Sioux City to Ontario (SUX - ONT)?

When flying from Sioux City to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Flights from Sioux City to Ontario lean towards being more expensive in May. Prices are generally better when you fly from Sioux City to Ontario in October, with the cheapest ticket starting at $233.

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Sioux City</span> to <span class="emphasized">Ontario</span> flights.

COVID Restrictions

View COVID Travel Restrictions for Ontario, CA

Do I need a COVID test to fly to Ontario from Sioux City?

Information is based on travel restrictions for travel to Ontario within the United States

Most visitors from Sioux City Sioux Gateway need to provide a negative COVID-19 test result and/or quarantine to enter Ontario.

COVID-19 testing requirements
Visitors from Sioux City Sioux Gateway are not required to present a negative COVID-19 PCR test or antigen result upon entering Ontario.

Quarantine requirements
Visitors from Sioux City Sioux Gateway are not required to quarantine after entering Ontario.

Do I need a test to fly back to Sioux City from Ontario?

Returning to Sioux City Sioux Gateway from Ontario

COVID-19 testing requirements
Visitors from Ontario are not required to present a negative COVID-19 PCR test or antigen result upon entering Sioux City Sioux Gateway.

Quarantine requirements
Visitors from Ontario are not required to quarantine after entering Sioux City Sioux Gateway.

Hide COVID Travel Restrictions for Ontario, CA

Alternative routes for Sioux City to Ontario

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Ontario

Things to know before you go - useful duration and weather info for your trip from Sioux City to Ontario.

Airports servicing Sioux City

Airports servicing Ontario

Home North America USA California Ontario Cheap flights from Sioux City to Ontario