Cheap Flight Tickets from Ontario (ONT) to Chicago (MDW), Starting at $146

Good to Know: Cheapest and Fastest ONT - MDW Flights

Useful information for finding best airline tickets from Ontario International to Chicago Midway International on your next trip.

Cheapest Round Trip Flight

$225

WN Southwest Airlines • 1 stop • 14h

Nov 12 – Nov 15

The cheapest round trip flight from Ontario to Chicago (ONT-MDW-ONT) is currently $225

🔍 Search Flights

Cheapest Direct Flight

$146

WN Southwest Airlines • nonstop • 5h 50m

Nov 19

The cheapest nonstop flight from Ontario to Chicago (ONT-MDW) is currently $146

🔍 Search Flights

Fastest Flight

5h 45m

The fastest nonstop flight from Ontario to Chicago (ONT-MDW) takes 5h 45m

Top Airlines Flying from Ontario to Chicago

Delta Airline, DL

Delta Airlines

Southwest Airlines-WN

Southwest Airlines

Latest Flight Deals from Ontario (ONT) to Chicago (MDW)

Compare and book low fare round-trip air tickets from Ontario to Chicago. Ideal for travelers with confirmed return itineraries.

Nov 12 - Nov 15, Economy
WN
Ontario → Chicago
14h
7:00 AM - 5:40 PM • 1 stop
WN
Ontario → Chicago
7h
10:45 AM - 1:05 PM • nonstop
$225
Southwest Airlines
Nov 12 - Nov 15, Economy
DL
Ontario → Chicago
16h 44m
6:00 AM - 6:04 PM • 2 stops
DL
Ontario → Chicago
7h 18m
7:45 AM - 10:23 AM • nonstop
$293
Delta Airlines
Nov 12 - Nov 15, Economy
DL
Ontario → Chicago
16h 44m
6:00 AM - 6:04 PM • 2 stops
DL
Ontario → Chicago
13h 51m
6:23 AM - 12:54 PM • 1 stop
$299
Delta Airlines
Nov 12 - Nov 12, Economy
DL
Ontario → Chicago
13h 59m
6:00 AM - 4:39 PM • 2 stops
DL
Ontario → Chicago
10h 32m
7:17 PM - 11:49 PM • 1 stop
$678
Delta Airlines
Nov 12 - Nov 12, Economy
DL
Ontario → Chicago
11h 53m
7:05 AM - 4:18 PM • 1 stop
DL
Ontario → Chicago
10h 32m
7:17 PM - 11:49 PM • 1 stop
$753
Delta Airlines
Nov 12 - Nov 12, Economy
DL
Ontario → Chicago
11h 53m
7:05 AM - 4:18 PM • 1 stop
DL
Ontario → Chicago
7h 17m
6:28 PM - 9:05 PM • nonstop
$808
Delta Airlines

Fly from Ontario to Chicago with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Ontario to Chicago? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Ontario to Chicago Flights

What are the airports in Ontario?
ONT
What’s the most popular airline flying from ONT to MDW?
The most popular airline flying from Ontario to Chicago are
Can I fly from ONT to MDW non-stop?
Yes, you can fly ONT to MDW non-stop on
Which airlines fly nonstop between Ontario and Chicago?
The non-stop flights between Ontario and Chicago are .
What’s the earliest departure time from ONT to MDW Airport?
The earliest flight leaves ONT at 6:00 am and lands in MDW - Chicago Midway International
What are the airports in Chicago?
ORD,MDW
Can I make changes to my Ontario to Chicago flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from ONT to MDW?
Read the fare rules of the Ontario to Chicago air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Ontario and Chicago?
operate flights between Ontario and Chicago
How long does a flight from Ontario to Chicago take?
It takes approximately 4 hour to fly non-stop from ONT to MDW, which is 1705.64 miles by air.
Which airlines provide the cheapest flights from Ontario (ONT) to Chicago (MDW) ?
In the past couple of days, the cheapest tickets to MDW from ONT were found on DL : USD 753
Do I need a passport to fly between ONT and MDW?
No
What’s the latest departure time from ONT to MDW ?
The last flight leaves ONT at 11:55 pm

Ontario (ONT) to Chicago (MDW): Airport Information

Origin Airport Ontario International , Ontario, US
Destination Airport Chicago Midway International , Chicago, US
Distance 1706 miles

More Flight Options for Ontario (ONT) and Chicago (MDW)

Why Fareleaders for ONT to MDW Plane Tickets

Lowest Prices
Lowest Prices
Uncover the best deals on Ontario to Chicago flights by comparing fares from hundreds of airlines and agencies.
New Deals
New Deals Everyday
Get the best prices on ONT to MDW flights—we update our fares daily so you never miss a saving.
Best Travel Options
No Service Fees
Compare hundreds of Ontario to Chicago flights and secure the best deals—we never add any service fees.
Get Fare Drop Alert
Be the first to know when fares drop for the Ontario (ONT) to Chicago (MDW)
Terms and Conditions*