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Cheap Flights from Ontario International to Chicago Midway

Compare Ontario International to Chicago Midway flight deals

Find the cheapest month or even day of the year to fly to Chicago Midway

Book the best Chicago Midway fare with no extra fees

Flight deals from Ontario International to Chicago Midway

Looking for a cheap last-minute deal or the best return flight from Ontario International to Chicago Midway? Find the lowest prices on one-way and return tickets right here.
Chicago.Rs18,196 per passenger.Departing Fri, 9 Jan.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Fri, 9 Jan, arriving in Chicago Midway.Price includes taxes and charges.From Rs18,196, select.
Chicago.Rs21,727 per passenger.Departing Wed, 26 Nov.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Wed, 26 Nov, arriving in Chicago Midway.Price includes taxes and charges.From Rs21,727, select.
Chicago.Rs22,295 per passenger.Departing Sun, 14 Dec.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Sun, 14 Dec, arriving in Chicago Midway.Price includes taxes and charges.From Rs22,295, select.
Chicago.Rs26,783 per passenger.Departing Sun, 22 Feb.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Sun, 22 Feb, arriving in Chicago Midway.Price includes taxes and charges.From Rs26,783, select.
Chicago.Rs58,543 per passenger.Departing Wed, 14 Jan.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Wed, 14 Jan, arriving in Chicago Midway.Price includes taxes and charges.From Rs58,543, select.
Chicago.Rs58,543 per passenger.Departing Tue, 16 Dec.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Tue, 16 Dec, arriving in Chicago Midway.Price includes taxes and charges.From Rs58,543, select.
Chicago.Rs58,543 per passenger.Departing Wed, 18 Feb.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Wed, 18 Feb, arriving in Chicago Midway.Price includes taxes and charges.From Rs58,543, select.
Chicago.Rs58,994 per passenger.Departing Wed, 4 Mar.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Ontario International on Wed, 4 Mar, arriving in Chicago Midway.Price includes taxes and charges.From Rs58,994, select.

Find the cheapest month to fly from Ontario International to Chicago Midway

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ontario International to Chicago Midway flights are currently cheapest in January.
Nov
from Rs21,727
Dec
from Rs22,295
Jan
from Rs18,196
Feb
from Rs26,783
Mar
from Rs58,994
Apr
from Rs72,418
May
from Rs72,418
Jun
from Rs72,418
Jul
from Rs72,487
Aug
Find prices
Sep
Find prices
Oct
Find prices

Direct flights from Ontario International to Chicago Midway

Ontario International to Chicago Midway: Alternative routes

Compare routes from Ontario International to Chicago below. You may find an airport to fly into that's cheaper, faster, or easier than Chicago Midway.

Ontario to Chicago: Flight information

The things to know before you go.
Cheapest flight foundRs18,196
Cheapest month to flyJanuary
Average flight time3 hrs, 46 mins
Most popular airlineSouthwest Airlines
Average flights per week9

Finding cheap flights from Ontario International to Chicago Midway: Frequently asked questions

The best price we found for a return flight from Ontario International to Chicago Midway is Rs49,924. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 46 minutes is the average flight time from Ontario International to Chicago Midway.
Southwest Airlines flies direct from Ontario International to Chicago Midway.
As of November 2025, there are 9 flights per week flying from Ontario International to Chicago Midway.
The cheapest month to fly from Ontario International to Chicago Midway is usually November.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ontario International Airport to Chicago Midway Airport on Monday, 17 November 2025.
Yes – the average flight time is 3 hours and 46 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Chicago Midway but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Chicago is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Frontier Airlines and Southwest Airlines offer the cheapest flight tickets to Chicago Midway.

Travelling from Ontario International Airport (ONT) to Chicago Midway International Airport (MDW): what you need to know

  • The average time for a direct flight from Ontario International Airport to Chicago Midway International Airport is 3 hours 50 minutes.

  • Chicago's timezone is UTC-5, making Chicago two hours ahead of Ontario.

  • Choose from five weekly Ontario International Airport to Chicago Midway International Airport flights. The 05:25 departure with Southwest Airlines is the earliest flight available. Southwest Airlines operates the last service of the day at 14:00.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are tried-and-true travel tips. Make sure you're at the airport on time to catch your ONT to MDW flight.

  • Flying during a peak month such as August? Major public holidays and other high seasons can lead to longer queues and delays at check-in and security. Play it safe and arrive up to four hours before an international flight and two hours before domestic departures.

  • Southwest Airlines offers direct flights from Ontario International Airport to Chicago Midway International Airport. Book with this popular carrier, then get ready to discover the sights in Chicago — and maybe even more of United States if your schedule allows.

  • The airline with the highest number of bookings on this route is Southwest Airlines.

  • Southwest Airlines is the most punctual carrier operating ONT to MDW flights. An impressive 80.7% of its services on this route land on time.

  • We make it a cinch to book a flight with a stopover. To see your options for tickets from Ontario International Airport to Chicago Midway International Airport, uncheck 'Direct flights only.' Then, choose a flight that has a stop long enough to tour the city of your choice. Some great stopovers between ONT and MDW include:

    • Denver International Airport

    • Harry Reid Airport (formerly McCarran Airport)

    • Phoenix Sky Harbour International Airport

How to find the cheapest flights from Ontario International Airport (ONT) to Chicago Midway International Airport (MDW)

  • Rs18,196 is currently the best price for a one-way Ontario International Airport to Chicago Midway International Airport flight. Return flights start from Rs49,924. These fares can change depending on availability and demand.

  • Book six months before you travel. After looking at the numbers on our calendar, this is how far you'll want to book ahead to find cheap tickets from ONT to MDW.

  • The cheapest month for flights from Ontario International Airport to Chicago Midway International Airport is May. Use the 'Whole month' tool to see the lowest airfares if you have flexible dates.

  • You won't have to check every day to find out if fares have dropped when you set up a Price Alert. We'll update you as soon as a special offer becomes available on cheap flights from ONT to MDW.

  • Pick your preferred arrival and departure times, airlines and number of stops with the filters. Or sort your results by 'Cheapest' to find the best deals on flights from Ontario International Airport to Chicago Midway International Airport.

Handy information about Ontario International Airport (ONT)

  • The address for ONT is 2900 E. Airport Drive.

  • Ontario International Airport has an excellent on-time record, so flight disruptions are less likely. Departures from ONT arrive at their destination as scheduled 83.6% of the time.

  • Central Ontario to Ontario International Airport is around 6 kilometres. Depending on traffic, it'll take you about 10 minutes to get there if you're driving, ride-sharing or catching a cab.

  • Catching public transport? Expect a journey time of around 1 hour 30 minutes.

  • Catching an early flight from Ontario International Airport to Chicago Midway International Airport? Avoid the hassle of rushing to the terminal (and sneak in some extra precious sleep) by choosing one of these hotels close to ONT:

Arriving at Chicago Midway International Airport (MDW)

  • Consider booking a hotel near MDW if you're catching a late Ontario International Airport to Chicago Midway International Airport flight. Select one of these options and skip the long transfer:

  • Get your adventure underway by picking up a Chicago Midway International Airport rental car. Grab your wheels from Dollar, Hertz or Budget and experience the lesser-explored corners of Chicago and beyond.

  • Get the best deal by reserving your vehicle from Chicago Midway International Airport about four weeks before your departure date.

Getting from Chicago Midway International Airport (MDW) to central Chicago

  • You'll find MDW at 5700 South Cicero.

  • Chicago Midway International Airport to central Chicago has a drive time of about 20 minutes. It's approximately 19 kilometres away.

  • When travelling by public transport, expect a journey of about 45 minutes.

When to fly to Chicago Midway International Airport (MDW)

  • The quietest month for a flight from Ontario International Airport to Chicago Midway International Airport is May, while July is the busiest. Pick the best time to go to Chicago based on whether you prefer a more fast-paced or easygoing experience.

  • When reserving your flight from Ontario International Airport to Chicago Midway International Airport, think about the kind of weather you like. July is the warmest month in Chicago, with temperatures ranging from 15ºC to 29ºC.

  • If you'd rather travel in cooler conditions, look for a cheap ticket from ONT to MDW in January. Temperatures average between -12ºC and 3ºC then.

Explore more of United States

  • You've done Chicago, now it's time to explore more of United States. Journey around 451 kilometres south-east to Columbus to check off its top attractions. From Franklin Park Conservatory and Botanical Gardens to Ohio Statehouse and German Village, there's plenty to keep you on the go.

  • Indianapolis is another sought-after destination in United States and is around 257 kilometres south-east of Chicago. No journey is complete without seeing The Children's Museum of Indianapolis, Indianapolis Museum of Art and Indianapolis Zoo.

Plan the rest of your trip from Ontario to Chicago

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.