Travelling from Chicago to Ontario International Airport (ONT): What you need to know
Begin planning your trip by checking out the most convenient departure point for your flight from Chicago to Ontario International Airport (ONT). Explore your options for leaving from Chicago O'Hare International Airport (ORD) or Chicago Midway International Airport (MDW), two of the city's main airports.
Expect to be in the air for 4 hours 30 minutes. That's the average journey time for a direct Chicago to Ontario International Airport flight.
Ontario International Airport is located in Ontario. The city runs on the UTC-8 timezone and is two hours behind Chicago.
Chicago O'Hare International Airport (ORD) to Ontario International Airport (ONT) is the busiest route, with 5 direct services every week. Travel from ORD to ONT on United Airlines's 7:55pm departure.
Give yourself enough time to get on your flight from Chicago to ONT. As a general rule, arrive two hours before international departures and an hour ahead for domestic flights.
Getting away during a peak month like July? Busy periods (like Thanksgiving, Christmas and spring break) can add another hour at check-in and security. Be extra safe and arrive up to four hours ahead of international flights and two hours before a domestic departure.
Airports in Chicago
Chicago O'Hare International Airport (ORD)
Chicago O'Hare International Airport (ORD) is a convenient option for travelling directly to your destination. Nonstop flights from Chicago to Ontario International Airport (ONT) can be booked from this terminal.
When leaving from ORD, you can catch a direct flight from Chicago to Ontario International Airport with United Airlines.
Most passengers choose to fly with United from ORD to ONT.
With 69.57% of its services arriving as scheduled, United is the most punctual carrier on this route.
Located around 27 kilometres from the centre of Chicago, ORD can be reached in about 30 minutes by car (depending on traffic). The journey by public transport is roughly 45 minutes.
Booked an early flight from Chicago to Ontario International Airport? Avoid rushing to the terminal (and catch some extra z's) by picking one of these stays close to Chicago O'Hare International Airport:
70% of flights departing from Chicago O'Hare International Airport reach their destination on schedule.
The address for ORD is 10000 West O'Hare.
Chicago Midway International Airport (MDW)
Planning to catch a flight from Chicago Midway International Airport (MDW)? Direct Chicago to Ontario International Airport (ONT) plane tickets can be booked from here.
From MDW, direct flights from Chicago to ONT are offered by Southwest Airlines.
Southwest Airlines is the top choice for passengers flying from MDW to ONT.
Southwest Airlines is the most punctual carrier flying from Chicago Midway International Airport to Ontario International Airport, with 79.49% of its services landing on schedule.
You can get to MDW from central Chicago in approximately 25 minutes by car, depending on traffic. The ride by public transport takes roughly 30 minutes to cover the 16 kilometres or so.
Taking off bright and early? You might like to check in to one of these accommodation options near Chicago Midway International Airport the day before your Chicago to ONT flight:
76% of flights departing Chicago Midway International Airport make it to their destination as expected.
You'll find MDW at 5700 South Cicero.
Chicago Rockford International Airport (RFD)
RFD is around 145 kilometres from central Chicago. The drive from the city centre to the airport takes about 1 hour 40 minutes. If you're thinking about using public transport, expect a journey time of around 2 hours.
Make catching an early Chicago to Ontario International Airport flight the easiest part of your journey. Stay at one of these accommodation options near Chicago Rockford International Airport and get to your check-in counter feeling relaxed and unhurried:
The on-time performance rate of RFD is 71%. In simpler terms, that's how often flights that depart this airport arrive at their destination as planned.
The street address of Chicago Rockford International Airport is 2 Airport Cir.
About Ontario International Airport (ONT)
Have a late flight from Chicago to Ontario International Airport? Don't let it stretch your travel day into tomorrow. Stay at one of these hotels near ONT and hit the lights earlier:
Lock in the best rate by reserving your ride around three weeks before your Chicago to Ontario International Airport flight.
The address for ONT is 2900 E. Airport Drive.
Getting from Ontario International Airport (ONT) to central Ontario
Central Ontario is around 10 kilometres from Ontario International Airport and takes about 15 minutes to reach by car. See what your options are for making the trip into the city, whether that's with a car hire, taxi or ride-share.
If you're taking public transport, expect a journey of around 45 minutes.
How to find the cheapest flights from Chicago to Ontario International Airport (ONT)
R 1,575 is the lowest price for a one-way ticket from Chicago to Ontario International Airport. Return flights start at R 3,096. These prices may change based on demand.
Booking early is often the key to finding a cheap flight from Chicago to ONT. Prices tend to rise as demand increases, so the closer you get to departure, the more you'll likely spend on your ticket.
The 'Whole month' tool will show you the cheapest Chicago to Ontario International Airport tickets across each month. It's a good way to find a bargain if your dates are flexible.
You don't need to search every day to find out if fares have dropped when you set up a Price Alert. We'll notify you when a better deal comes up on plane tickets from Chicago to ONT.
Tailor your trip using filters. Pick your arrival and departure times, airlines and total journey duration. You can also sort your results by 'Best,' 'Cheapest' or 'Fastest' flights from Chicago to Ontario International Airport.
The best time to fly from Chicago to Ontario International Airport (ONT)
December is the quietest month for flights from Chicago to Ontario International Airport (ONT), while July is the busiest. Work out the ideal time to visit Ontario based on whether you want a bustling atmosphere or a more laid-back vibe.
When booking your Chicago to ONT plane ticket, consider the kind of weather forecast you're hoping for. August is the warmest month in Ontario, with temperatures ranging from 16ºC (61ºF) to 36ºC (97ºF).
Search for cheap tickets from Chicago to Ontario International Airport in February if you like travelling in cooler conditions. Temperatures are at their lowest then, ranging between 4ºC (39ºF) and 24ºC (75ºF).
More about Ontario
Start your Ontario trip right by choosing the perfect place to stay. As soon as you've booked your flight from Chicago to Ontario International Airport, explore our range of hotels including:
Make the most of your getaway to Ontario by stopping by top attractions like Graber Olive House.
Explore more of the United States
San Diego is just one of the many places in the United States waiting to be explored after you've experienced Ontario. Around 153 kilometres away to the south, well-known attractions include San Diego Zoo, San Diego Balboa Park and USS Midway Museum.
If you're looking to explore another major stop in the United States, head for Bakersfield, roughly 193 kilometres northwest of Ontario. Kern County Museum, Rabobank Arena, Theatre & Convention Centre and Bakersfield Museum of Art are key highlights.
