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Our best Delta deals on Chicago Midway Airport to Ontario flight tickets
Frontier flights from Chicago Midway Airport to Ontario
Our best Frontier deals on Chicago Midway Airport to Ontario flight tickets
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Use the filters below to find and compare flights from Chicago Midway Airport to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
ChicagoOntario
MDW Chicago Midway - ONT Ontario
MDWONT
Chicago Midway
Fri 11/13
12:20 pm-7:08 pm
1 stop8h 48m
Ontario
Mon 11/16
8:03 pm-11:22 am
1 stop13h 19m
ChicagoOntario
MDW Chicago Midway - ONT Ontario
MDWONT
Chicago Midway
Thu 10/29
12:20 pm-7:08 pm
1 stop8h 48m
Ontario
Sun 11/1
8:03 pm-11:25 am
1 stop13h 22m
ChicagoOntario
MDW Chicago Midway - ONT Ontario
MDWONT
Chicago Midway
Thu 10/22
1:12 pm-7:05 pm
1 stop7h 53m
Ontario
Mon 11/2
8:03 pm-11:22 am
1 stop13h 19m
ChicagoOntario
MDW Chicago Midway - ONT Ontario
MDWONT
Chicago Midway
Thu 10/29
12:20 pm-7:08 pm
1 stop8h 48m
Ontario
Sun 11/1
8:03 pm-11:25 am
1 stop13h 22m
ChicagoOntario
MDW Chicago Midway - ONT Ontario
MDWONT
Chicago Midway
Fri 11/13
12:20 pm-7:08 pm
1 stop8h 48m
Ontario
Mon 11/16
8:03 pm-11:22 am
1 stop13h 19m
ChicagoOntario
MDW Chicago Midway - ONT Ontario
MDWONT
Chicago Midway
Fri 11/6
12:20 pm-7:08 pm
1 stop8h 48m
Ontario
Fri 11/13
8:03 pm-11:25 am
1 stop13h 22m
ChicagoOntario
MDW Chicago Midway - ONT Ontario
MDWONT
Chicago Midway
Thu 11/5
12:20 pm-7:08 pm
1 stop8h 48m
Ontario
Mon 11/9
8:03 pm-11:22 am
1 stop13h 19m
ChicagoOntario
MDW Chicago Midway - ONT Ontario
MDWONT
Chicago Midway
Thu 10/29
12:20 pm-7:08 pm
1 stop8h 48m
Ontario
Mon 11/2
8:03 pm-11:22 am
1 stop13h 19m
ChicagoOntario
MDW Chicago Midway - ONT Ontario
MDWONT
Chicago Midway
Sat 11/14
10:25 am-12:45 pm
Nonstop4h 20m
Ontario
Sun 11/22
11:55 pm-5:40 am
Nonstop3h 45m
ChicagoOntario
MDW Chicago Midway - ONT Ontario
MDWONT
Chicago Midway
Thu 2/25
9:45 pm-12:05 am
Nonstop4h 20m
Ontario
Tue 3/2
6:45 am-12:30 pm
Nonstop3h 45m
See travel insights to Los Angeles from
How to get the cheapest flight ticket from Chicago Midway Airport to Ontario
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Chicago Midway Airport and Ontario?
Prices are currently low for flights on this route.
Typical prices usually range from $278 to $457.The lowest price recently found on this route was $220.
What is the cheapest month to fly to Ontario?
In general, February is the cheapest month to fly from Chicago Midway Airport to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you aren’t able to travel during the month of February, then book flights to Ontario from Chicago Midway Airport during September instead. Flights to Ontario in September, while not as cheap as those in February, still average around $316.
What is the cheapest day to depart on your flight to Ontario?
The cheapest day to depart on your flight to Ontario is on a Thursday when prices can be found for as low as $397. This is often the case because there is less demand to fly during this day of the week. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Chicago Midway Airport to Ontario for around $732.
What is the cheapest time of day to depart on your flight to Ontario?
At noon is the cheapest time of day to fly from Chicago Midway Airport to Ontario when you can find flight prices for as low as $271. Flying to Ontario at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $520 on average. Flights to Ontario from Chicago Midway Airport in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.
What is the cheapest Chicago Midway to Ontario flight route?
Fly from Chicago Midway to Ontario for the best Chicago Midway - Ontario flight prices
What cabin class options are available on Chicago Midway Airport to Ontario flights?
There is only 1 cabin class available to choose from on Chicago Midway Airport to Ontario flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Chicago Midway Airport to Ontario flights?
No. A direct flight is the cheapest option for a flight between Chicago Midway Airport to Ontario.
What is the cheapest airline that flies from Chicago Midway to Ontario?
Southwest and Delta are the most popular carriers operating from Chicago Midway to Ontario
What airlines fly to Ontario?
Southwest, Frontier and Delta are the top three most popular airlines that fly to Ontario from Chicago Midway Airport according to our data. Southwest is the first choice among our users, with 89% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 3 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.
When to book flights from Chicago Midway Airport to Ontario
Cheap Chicago Midway Airport to Ontario (MDW to ONT) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chicago Midway Airport to Ontario
Frequently asked questions about flying from Chicago Midway Airport to Ontario
How far is Chicago Midway to Ontario by plane?
Chicago Midway and Ontario are 1703.8 mi apart from one another. 4h 15m is a normal flight duration for this route.
When did momondo last update prices for flights from Chicago Midway Airport to Ontario Airport?
Prices for flights from Chicago Midway Airport to Ontario Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Chicago Midway Airport to Ontario Airport?
As of October 2026, there is 1 operator available to choose from for flights from Chicago Midway Airport to Ontario Airport.
How old do you have to be to fly from Chicago Midway Airport to Ontario Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago Midway Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Chicago Midway Airport to Ontario?
momondo data reveals that the most frequently booked plane model on the route from Chicago Midway Airport to Ontario is Boeing 737 MAX 8, representing 32.19% of all bookings. The subsequent popular models are Boeing 737-800 at 17.12%, Boeing 737 at 16.44%, and Airbus A320-100/200 at 10.27%.
What is the most popular airline from Chicago Midway Airport to Ontario?
momondo data reveals that the most frequently booked airline on the route from Chicago Midway Airport to Ontario is Southwest, representing 100% of all bookings.
Best airlines flying from Chicago Midway Airport to Ontario
Compare and see reviews for airlines that fly from Chicago Midway Airport to Ontario with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $239 | Free Cancellation | Rating 7.9 4,219 reviews |
Southwest Flights From Chicago Midway Airport to Ontario
The lowest priced Southwest flight from Chicago Midway Airport to Ontario from the last 72 hours was $239. Generally, Southwest has 4 flights on this route every week with an average price of $453. Southwest is rated 7.9/10 by our users.
Why use momondo?
Why should I use momondo to find a flight deal from Chicago to Ontario?
Finding the right flight to Ontario from Chicago is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Ontario quick and easy, saving you time and money.
Can I find flights from Chicago to Ontario with flexible booking policies on momondo?
Flights from Chicago 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 Chicago to Ontario?
Once all potential Chicago to Ontario flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Chicago 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 Chicago and alert you when they change.