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Cheap flights from Chicago Midway Airport to Los Angeles from $61

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago Midway Airport to Los Angeles departing on 1/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Chicago Midway Airport to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:05 am - 6:35 pmMDW-ONT
12h 30m1 stop
Frontier Logo
3:20 pm - 11:08 amONT-MDW
17h 48m1 stop
$208Frontier
Find Deal
Thu, Dec 11 - Sat, Dec 13
Frontier Logo
3:05 pm - 11:56 pmMDW-ONT
10h 51m1 stop
Frontier Logo
8:02 am - 5:20 pmONT-MDW
7h 18m1 stop
$217Frontier
Find Deal
Fri, Jan 9 - Thu, Jan 15
Frontier Logo
8:05 am - 5:34 pmMDW-ONT
11h 29m1 stop
Frontier Logo
3:20 pm - 11:08 amONT-MDW
17h 48m1 stop
$228Frontier
Find Deal
Fri, Dec 12 - Sat, Dec 13
Frontier Logo
8:05 am - 6:35 pmMDW-ONT
12h 30m1 stop
Frontier Logo
4:01 pm - 11:08 amONT-MDW
17h 07m1 stop
$229Frontier
Find Deal
Thu, Dec 11 - Sun, Dec 14
Frontier Logo
3:05 pm - 11:56 pmMDW-ONT
10h 51m1 stop
Frontier Logo
6:00 am - 2:05 pmONT-MDW
6h 05m1 stop
$232Frontier
Find Deal
Fri, Jan 9 - Mon, Jan 12
Frontier Logo
12:18 pm - 2:25 pmMDW-ONT
28h 07m1 stop
Frontier Logo
4:01 pm - 11:08 amONT-MDW
17h 07m1 stop
$233Frontier
Find Deal
Fri, Dec 12 - Sun, Dec 14
Frontier Logo
8:05 am - 5:34 pmMDW-ONT
11h 29m1 stop
Frontier Logo
4:01 pm - 11:08 amONT-MDW
17h 07m1 stop
$241Frontier
Find Deal
Fri, Dec 12 - Sun, Dec 14
Frontier Logo
12:35 pm - 5:32 pmMDW-ONT
6h 57m1 stop
Frontier Logo
6:45 am - 7:55 pmONT-MDW
11h 10m1 stop
$248Frontier
Find Deal
Mon, Dec 15 - Tue, Dec 23
Frontier Logo
8:05 am - 3:22 pmMDW-ONT
9h 17m1 stop
Frontier Logo
6:45 am - 7:55 pmONT-MDW
11h 10m1 stop
$252Frontier
Find Deal
Sun, Dec 14 - Tue, Dec 23
Frontier Logo
8:00 am - 3:46 pmMDW-ONT
9h 46m1 stop
Frontier Logo
6:00 am - 2:05 pmONT-MDW
6h 05m1 stop
$268Frontier
Find Deal
Tue, Dec 30 - Fri, Jan 9

Frontier flights from Chicago Midway Airport to Ontario

Our best Frontier deals on Chicago Midway Airport to Ontario flight tickets
Frontier
Dec 11
MDW8:05 amChicago Midway
12h 30m
1 stop
ONT6:35 pmOntario
Dec 13
ONT3:20 pmOntario
17h 48m
1 stop
MDW11:08 amChicago Midway
$208
Find similar
Frontier
Jan 9
MDW3:05 pmChicago Midway
10h 51m
1 stop
ONT11:56 pmOntario
Jan 12
ONT6:00 amOntario
6h 05m
1 stop
MDW2:05 pmChicago Midway
$217
Find similar
Frontier
Dec 12
MDW8:05 amChicago Midway
11h 29m
1 stop
ONT5:34 pmOntario
Dec 13
ONT3:20 pmOntario
17h 48m
1 stop
MDW11:08 amChicago Midway
$228
Find similar

Delta flights from Chicago Midway Airport to Ontario

Our best Delta deals on Chicago Midway Airport to Ontario flight tickets
Delta
Feb 24
MDW6:00 amChicago Midway
8h 02m
1 stop
ONT12:02 pmOntario
Mar 4
ONT10:20 pmOntario
9h 36m
1 stop
MDW9:56 amChicago Midway
$341
Find similar
Delta
Feb 24
MDW12:46 pmChicago Midway
10h 19m
1 stop
ONT9:05 pmOntario
Mar 9
ONT10:30 pmOntario
9h 25m
1 stop
MDW9:55 amChicago Midway
$351
Find similar
Delta
Mar 2
MDW1:49 pmChicago Midway
12h 00m
2 stops
ONT11:49 pmOntario
Mar 4
ONT10:20 pmOntario
9h 36m
1 stop
MDW9:56 amChicago Midway
$356
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago Midway Airport to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 30, 2025.
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

Price

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Thu 12/11

8:05 am-6:35 pm

1 stop12h 30m

Ontario

Sat 12/13

3:20 pm-11:08 am

1 stop17h 48m

$208

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Fri 1/9

3:05 pm-11:56 pm

1 stop10h 51m

Ontario

Thu 1/15

8:02 am-5:20 pm

1 stop7h 18m

$217

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Fri 12/12

8:05 am-5:34 pm

1 stop11h 29m

Ontario

Sat 12/13

3:20 pm-11:08 am

1 stop17h 48m

$228

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Thu 12/11

8:05 am-6:35 pm

1 stop12h 30m

Ontario

Sun 12/14

4:01 pm-11:08 am

1 stop17h 07m

$229

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Fri 1/9

3:05 pm-11:56 pm

1 stop10h 51m

Ontario

Mon 1/12

6:00 am-2:05 pm

1 stop6h 05m

$232

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Fri 12/12

12:18 pm-2:25 pm

1 stop28h 07m

Ontario

Sun 12/14

4:01 pm-11:08 am

1 stop17h 07m

$233

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Fri 12/12

8:05 am-5:34 pm

1 stop11h 29m

Ontario

Sun 12/14

4:01 pm-11:08 am

1 stop17h 07m

$241

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Mon 12/15

12:35 pm-5:32 pm

1 stop6h 57m

Ontario

Tue 12/23

6:45 am-7:55 pm

1 stop11h 10m

$248

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Sun 12/14

8:05 am-3:22 pm

1 stop9h 17m

Ontario

Tue 12/23

6:45 am-7:55 pm

1 stop11h 10m

$252

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Tue 12/30

8:00 am-3:46 pm

1 stop9h 46m

Ontario

Fri 1/9

6:00 am-2:05 pm

1 stop6h 05m

$268

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 cheapest month to fly to Ontario?

In general, January 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 $214. If you aren’t able to travel during the month of January, then book flights to Ontario from Chicago Midway Airport during August instead. Flights to Ontario in August, while not as cheap as those in January, still average around $291.

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 $383. 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 $492.

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 $379. 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 morning when prices are $499 on average. Flights to Ontario from Chicago Midway Airport in the morning 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 to Ontario flights?

There is only 1 cabin class available to choose from on Chicago Midway 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?

You could potentially save up to 51% on your flight if you consider stops on a Chicago Midway Airport to Ontario flight.

How have Chicago Midway Airport to Ontario flight prices changed over time?

As of November 2025, prices for Chicago Midway Airport to Ontario flights are approximately 10% cheaper when compared to flights at the same time last year.

When to book flights from Chicago Midway Airport to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago Midway Airport to Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

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

Best Price Found

$599

Fastest flight time

4h 15m

Direct flights

Every day

Airports in Ontario

1 airport
The best flight deal from Chicago Midway Airport to Ontario found on momondo in the last 72 hours is $599
The fastest flight from Chicago Midway Airport to Ontario takes 4h 15m
Direct flights go from Chicago Midway Airport to Ontario every day.
There is 1 airport near Ontario: Ontario (ONT)
Search flight deals

  • How far is Chicago Midway to Ontario by plane?

    Chicago Midway and Ontario are 1703.8 mi apart from one another. 4h 30m 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?

  • 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?

  • What is the most popular airline from Chicago Midway Airport to Ontario?

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
FrontierPriceFrom $153Free CancellationRating
5.8
3,098 reviews
Search Frontier flights
SouthwestPriceFrom $282Free CancellationRating
8.0
4,250 reviews
Search Southwest flights

  • 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 $282. Generally, Southwest has 2 flights on this route every week with an average price of $426. Southwest is rated 8.0/10 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.

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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