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Cheap flights from Chicago Midway Airport to Los Angeles from $78

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 9/4. 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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Find the cheapest flights from Chicago Midway Airport to Los Angeles

Cheap round-trip flights

Frontier Logo
6:24 pm - 11:50 pmMDW-ONT
7h 26m1 stop
Frontier Logo
6:53 am - 11:16 amONT-MDW
26h 23m1 stop
$150Frontier
Find Deal
Thu, Oct 23 - Sun, Oct 26
Frontier Logo
6:24 pm - 11:50 pmMDW-ONT
7h 26m1 stop
Frontier Logo
6:53 am - 11:30 amONT-MDW
26h 37m1 stop
$151Frontier
Find Deal
Thu, Oct 23 - Wed, Oct 29
Frontier Logo
6:30 am - 6:35 pmMDW-ONT
14h 05m1 stop
Frontier Logo
8:59 pm - 3:53 pmONT-MDW
16h 54m1 stop
$154Frontier
Find Deal
Thu, Sep 25 - Thu, Oct 2
Frontier Logo
10:13 am - 3:29 pmMDW-ONT
7h 16m1 stop
Frontier Logo
8:59 pm - 3:53 pmONT-MDW
16h 54m1 stop
$155Frontier
Find Deal
Thu, Sep 11 - Sun, Sep 14
Frontier Logo
10:30 am - 5:54 pmMDW-ONT
9h 24m1 stop
Frontier Logo
12:32 pm - 4:09 pmONT-MDW
25h 37m1 stop
$158Frontier
Find Deal
Thu, Oct 9 - Fri, Oct 17
Frontier Logo
6:30 am - 6:35 pmMDW-ONT
14h 05m1 stop
Frontier Logo
8:59 pm - 3:53 pmONT-MDW
16h 54m1 stop
$160Frontier
Find Deal
Thu, Sep 25 - Thu, Sep 25
Frontier Logo
12:30 pm - 11:10 amMDW-ONT
24h 40m1 stop
Frontier Logo
6:53 am - 11:30 amONT-MDW
26h 37m1 stop
$165Frontier
Find Deal
Fri, Nov 7 - Sun, Nov 9
Frontier Logo
12:30 pm - 11:10 amMDW-ONT
24h 40m1 stop
Frontier Logo
6:53 am - 11:30 amONT-MDW
26h 37m1 stop
$167Frontier
Find Deal
Fri, Nov 7 - Sun, Nov 9
Logo
3:48 pm - 7:54 pmMDW-ONT
30h 06m1 stop
Logo
7:30 pm - 8:52 pmONT-MDW
23h 22m1 stop
$197
Find Deal
Fri, Sep 19 - Thu, Sep 25
Logo
6:20 am - 11:38 pmMDW-ONT
19h 18m2 stops
Logo
7:30 pm - 8:52 pmONT-MDW
23h 22m1 stop
$236
Find Deal
Fri, Sep 19 - Thu, Sep 25

Frontier flights from Chicago Midway Airport to Ontario

Our best Frontier deals on Chicago Midway Airport to Ontario flight tickets
Frontier
Oct 23
MDW6:24 pmChicago Midway
7h 26m
1 stop
ONT11:50 pmOntario
Oct 26
ONT6:53 amOntario
26h 23m
1 stop
MDW11:16 amChicago Midway
$150
Find similar
Frontier
Oct 23
MDW6:24 pmChicago Midway
7h 26m
1 stop
ONT11:50 pmOntario
Oct 29
ONT6:53 amOntario
26h 37m
1 stop
MDW11:30 amChicago Midway
$151
Find similar
Frontier
Sep 7
MDW6:30 amChicago Midway
14h 05m
1 stop
ONT6:35 pmOntario
Sep 14
ONT8:59 pmOntario
16h 54m
1 stop
MDW3:53 pmChicago Midway
$154
Find similar

Delta flights from Chicago Midway Airport to Ontario

Our best Delta deals on Chicago Midway Airport to Ontario flight tickets
Delta
Sep 11
MDW9:35 amChicago Midway
11h 40m
2 stops
ONT7:15 pmOntario
Sep 16
ONT11:55 amOntario
7h 41m
1 stop
MDW9:36 pmChicago Midway
$679
Find similar
Delta
Sep 11
MDW9:35 amChicago Midway
11h 40m
2 stops
ONT7:15 pmOntario
Sep 16
ONT10:00 pmOntario
8h 40m
2 stops
MDW8:40 amChicago Midway
$684
Find similar
Delta
Sep 9
MDW1:08 pmChicago Midway
11h 34m
2 stops
ONT10:42 pmOntario
Sep 12
ONT10:00 pmOntario
9h 47m
1 stop
MDW9:47 amChicago Midway
$716
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 August 28, 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 10/23

6:24 pm-11:50 pm

1 stop7h 26m

Ontario

Sun 10/26

6:53 am-11:16 am

1 stop26h 23m

$150

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Thu 10/23

6:24 pm-11:50 pm

1 stop7h 26m

Ontario

Wed 10/29

6:53 am-11:30 am

1 stop26h 37m

$151

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Thu 9/25

6:30 am-6:35 pm

1 stop14h 05m

Ontario

Thu 10/2

8:59 pm-3:53 pm

1 stop16h 54m

$154

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Thu 9/11

10:13 am-3:29 pm

1 stop7h 16m

Ontario

Sun 9/14

8:59 pm-3:53 pm

1 stop16h 54m

$155

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Thu 10/9

10:30 am-5:54 pm

1 stop9h 24m

Ontario

Fri 10/17

12:32 pm-4:09 pm

1 stop25h 37m

$158

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Thu 9/25

6:30 am-6:35 pm

1 stop14h 05m

Ontario

Thu 9/25

8:59 pm-3:53 pm

1 stop16h 54m

$160

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Fri 11/7

12:30 pm-11:10 am

1 stop24h 40m

Ontario

Sun 11/9

6:53 am-11:30 am

1 stop26h 37m

$165

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Fri 11/7

12:30 pm-11:10 am

1 stop24h 40m

Ontario

Sun 11/9

6:53 am-11:30 am

1 stop26h 37m

$167

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Fri 9/19

3:48 pm-7:54 pm

1 stop30h 06m

Ontario

Thu 9/25

7:30 pm-8:52 pm

1 stop23h 22m

$197

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Fri 9/19

6:20 am-11:38 pm

2 stops19h 18m

Ontario

Thu 9/25

7:30 pm-8:52 pm

1 stop23h 22m

$236

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 $221. If you aren’t able to travel during the month of January, then book flights to Ontario from Chicago Midway Airport during October instead. Flights to Ontario in October, while not as cheap as those in January, still average around $257.

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 Tuesday when prices can be found for as low as $330. 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 $485.

What is the cheapest time of day to depart on your flight to Ontario?

In the evening is the cheapest time of day to fly from Chicago Midway Airport to Ontario when you can find flight prices for as low as $339. Flying to Ontario in the evening 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 $448 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 15% 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 August 2025, prices for Chicago Midway Airport to Ontario flights are approximately 78% more expensive 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

$447

Fastest flight time

4h 10m

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 $447
The fastest flight from Chicago Midway Airport to Ontario takes 4h 10m
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. 6h 06m 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 $148Free CancellationRating
5.8
3,204 reviews
Search Frontier flights
SouthwestPriceFrom $282Free CancellationRating
8.0
4,242 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 5 flights on this route every week with an average price of $445. 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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