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Cheap flights from Chicago Midway Airport to Los Angeles from $79

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 10/20. 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
jue., oct. 23 - dom., oct. 26
Frontier Logo
6:24 pm - 9:35 amMDW-ONT
17h 11m1 stop
Frontier Logo
6:53 am - 12:36 amONT-MDW
15h 43m1 stop
$151Frontier
Find Deal
jue., oct. 16 - jue., oct. 23
Frontier Logo
6:24 pm - 11:50 pmMDW-ONT
7h 26m1 stop
Frontier Logo
6:53 am - 11:30 amONT-MDW
26h 37m1 stop
$152Frontier
Find Deal
jue., oct. 23 - mié., oct. 29
Frontier Logo
6:30 am - 6:49 pmMDW-ONT
14h 19m1 stop
Frontier Logo
6:53 am - 11:30 amONT-MDW
26h 37m1 stop
$154Frontier
Find Deal
jue., nov. 6 - dom., nov. 9
Frontier Logo
9:00 am - 4:28 pmMDW-ONT
9h 28m1 stop
Frontier Logo
6:53 am - 12:36 amONT-MDW
15h 43m1 stop
$155Frontier
Find Deal
vie., oct. 24 - dom., oct. 26
Frontier Logo
6:30 am - 6:35 pmMDW-ONT
14h 05m1 stop
Frontier Logo
8:59 pm - 3:53 pmONT-MDW
16h 54m1 stop
$156Frontier
Find Deal
jue., oct. 2 - dom., oct. 5
Frontier Logo
10:30 am - 5:54 pmMDW-ONT
9h 24m1 stop
Frontier Logo
8:34 am - 11:20 pmONT-MDW
12h 46m1 stop
$158Frontier
Find Deal
jue., oct. 16 - sáb., oct. 18
Frontier Logo
9:43 pm - 7:29 amMDW-ONT
11h 46m1 stop
Frontier Logo
8:24 am - 5:49 pmONT-MDW
7h 25m1 stop
$159Frontier
Find Deal
jue., oct. 30 - lun., nov. 3
Frontier Logo
6:30 am - 6:35 pmMDW-ONT
14h 05m1 stop
Frontier Logo
12:13 pm - 8:52 pmONT-MDW
6h 39m1 stop
$160Frontier
Find Deal
jue., oct. 2 - lun., oct. 6
Multiple Airlines Logo
7:03 pm - 9:56 pmMDW-ONT
28h 53m1 stop
Multiple Airlines Logo
9:16 am - 9:58 pmONT-MDW
10h 42m2 stops
$226Multiple Airlines
Find Deal
lun., sep. 29 - jue., oct. 2

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 16
MDW6:24 pmChicago Midway
17h 11m
1 stop
ONT9:35 amOntario
Oct 23
ONT6:53 amOntario
15h 43m
1 stop
MDW12:36 amChicago Midway
$151
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
$152
Find similar

Southwest flights from Chicago Midway Airport to Ontario

Our best Southwest deals on Chicago Midway Airport to Ontario flight tickets
Southwest
Oct 1
MDW5:25 pmChicago Midway
4h 10m
ONT7:35 pmOntario
Oct 5
ONT6:20 amOntario
3h 50m
MDW12:10 pmChicago Midway
$556
Find similar
Southwest
Oct 1
MDW5:10 pmChicago Midway
5h 50m
1 stop
ONT9:00 pmOntario
Oct 5
ONT6:20 amOntario
3h 50m
MDW12:10 pmChicago Midway
$566
Find similar
Southwest
Oct 1
MDW8:30 amChicago Midway
8h 10m
2 stops
ONT2:40 pmOntario
Oct 5
ONT6:20 amOntario
3h 50m
MDW12:10 pmChicago Midway
$571
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 septiembre 17, 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

jue. 10/23

6:24 pm-11:50 pm

1 stop7h 26m

Ontario

dom. 10/26

6:53 am-11:16 am

1 stop26h 23m

$150

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

jue. 10/16

6:24 pm-9:35 am

1 stop17h 11m

Ontario

jue. 10/23

6:53 am-12:36 am

1 stop15h 43m

$151

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

jue. 10/23

6:24 pm-11:50 pm

1 stop7h 26m

Ontario

mié. 10/29

6:53 am-11:30 am

1 stop26h 37m

$152

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

jue. 11/6

6:30 am-6:49 pm

1 stop14h 19m

Ontario

dom. 11/9

6:53 am-11:30 am

1 stop26h 37m

$154

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

vie. 10/24

9:00 am-4:28 pm

1 stop9h 28m

Ontario

dom. 10/26

6:53 am-12:36 am

1 stop15h 43m

$155

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

jue. 10/2

6:30 am-6:35 pm

1 stop14h 05m

Ontario

dom. 10/5

8:59 pm-3:53 pm

1 stop16h 54m

$156

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

jue. 10/16

10:30 am-5:54 pm

1 stop9h 24m

Ontario

sáb. 10/18

8:34 am-11:20 pm

1 stop12h 46m

$158

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

jue. 10/30

9:43 pm-7:29 am

1 stop11h 46m

Ontario

lun. 11/3

8:24 am-5:49 pm

1 stop7h 25m

$159

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

jue. 10/2

6:30 am-6:35 pm

1 stop14h 05m

Ontario

lun. 10/6

12:13 pm-8:52 pm

1 stop6h 39m

$160

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

lun. 9/29

7:03 pm-9:56 pm

1 stop28h 53m

Ontario

jue. 10/2

9:16 am-9:58 pm

2 stops10h 42m

$226

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 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 $268.

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 $382. 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 $361. 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 $462 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 24% 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 September 2025, prices for Chicago Midway Airport to Ontario flights are approximately 6% 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

$449

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 $449
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. 7h 26m 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
3,173 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 $446. 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

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