HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Midway

$81+ Cheap flights from Ontario (ONT) to Midway (MDW)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — MDW
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Midway with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Ontario to Chicago Midway are usually found in December or September, booked 71 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Ontario to Midway

Cheapest flights from Ontario to Midway
Explore the most affordable flight options available from Ontario to Midway. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 12, 2025.

This Frontier deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/306:45 amONT - MDW
1 stop11h 10mFrontier
lun. 1/123:00 pmMDW - ONT
1 stop10h 56mFrontier
Deal found 12/10$253
This CheapOair deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/133:20 pmONT - MDW
1 stop17h 48mFrontier
lun. 12/1512:35 pmMDW - ONT
1 stop6h 57mFrontier
Deal found 12/11$305
This Gotogate deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/1112:04 pmONT - MDW
1 stop21h 04mFrontier
dom. 12/142:01 pmMDW - ONT
1 stop28h 32mFrontier
Deal found 12/10$353
This CheapOair deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/306:45 amONT - MDW
1 stop11h 10mFrontier
dom. 1/410:50 pmMDW - ONT
1 stop27h 09mFrontier
Deal found 12/11$354
This Kiwi.com deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/246:00 amONT - MDW
2 stops33h 38mFrontier
dom. 1/48:00 amMDW - ONT
1 stop25h 24mFrontier
Deal found 12/11$358
This Kiwi.com deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/246:00 amONT - MDW
2 stops33h 38mFrontier
mié. 12/3110:21 amMDW - ONT
1 stop24h 32mFrontier
Deal found 12/11$363
This CheapOair deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/1112:04 pmONT - MDW
1 stop21h 04mFrontier
lun. 12/1512:35 pmMDW - ONT
1 stop6h 57mFrontier
Deal found 12/10$384
This Kiwi.com deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/236:17 pmONT - MDW
2 stops13h 04mFrontier
dom. 1/48:00 amMDW - ONT
1 stop25h 24mFrontier
Deal found 12/11$404
This Kiwi.com deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/236:17 pmONT - MDW
2 stops13h 04mFrontier
mié. 12/3110:21 amMDW - ONT
1 stop24h 32mFrontier
Deal found 12/11$409
This Expedia deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/216:45 amONT - MDW
1 stop13h 05mFrontier
mié. 12/2410:21 amMDW - ONT
1 stop7h 06mFrontier
Deal found 12/10$433

Find flight deals from Ontario to Midway

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Midway (MDW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated diciembre 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$179
(Kiwi.com)

One-way from

$81
(CheapOair)

Popular in

November

Cheapest in

December

Average price

$241

Good round-trip deal

$376 or less

Good one-way deal

$183 or less
Provider with most accurate pricing for Ontario-Chicago Midway flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Chicago Midway flights.
Search Deals
From Ontario to Chicago Midway
Search Deals
One-way flight from Ontario to Chicago Midway
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Ontario to Chicago Midway.
Search Deals
Price to beat on a one-way flight from Ontario to Chicago Midway.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Midway 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, Cheapflights users made 2,558,603 searches. Data last updated diciembre 12, 2025.
Use the filters below to find and compare flights from Ontario to Chicago Midway Airport that are best for you.

Fly from

Ontario

Fly to

Midway

Route

Depart

Return

Price

OntarioChicago

ONT - MDW

ONTMDW

Ontario

lun. 1/12

6:00 am-2:05 pm

1 stop6h 05m

Chicago Midway

vie. 1/16

9:09 pm-10:59 pm

1 stop27h 50m

$268

OntarioChicago

ONT - MDW

ONTMDW

Ontario

vie. 1/16

6:10 am-7:54 pm

1 stop11h 44m

Chicago Midway

lun. 1/19

9:09 pm-3:07 pm

1 stop19h 58m

$281

OntarioChicago

ONT - MDW

ONTMDW

Ontario

vie. 1/9

6:00 am-2:05 pm

1 stop6h 05m

Chicago Midway

vie. 1/16

9:09 pm-10:59 pm

1 stop27h 50m

$286

OntarioChicago

ONT - MDW

ONTMDW

Ontario

sáb. 2/14

10:20 pm-12:46 pm

2 stops12h 26m

Chicago Midway

vie. 2/20

1:26 pm-11:49 pm

2 stops12h 23m

$361

OntarioChicago

ONT - MDW

ONTMDW

Ontario

dom. 1/25

10:30 pm-12:46 pm

2 stops12h 16m

Chicago Midway

mié. 1/28

9:33 am-9:05 pm

2 stops13h 32m

$361

OntarioChicago

ONT - MDW

ONTMDW

Ontario

jue. 1/15

12:41 pm-10:07 pm

1 stop7h 26m

Chicago Midway

lun. 1/19

6:00 am-11:31 am

1 stop7h 31m

$361

OntarioChicago

ONT - MDW

ONTMDW

Ontario

mar. 1/6

5:55 am-1:10 pm

1 stop5h 15m

Chicago Midway

mar. 1/6

5:35 pm-9:45 pm

1 stop6h 10m

$435

OntarioChicago

ONT - MDW

ONTMDW

Ontario

lun. 1/26

6:30 am-3:25 pm

1 stop6h 55m

Chicago Midway

mié. 1/28

11:10 am-4:05 pm

1 stop6h 55m

$446

OntarioChicago

ONT - MDW

ONTMDW

Ontario

lun. 1/26

10:30 pm-1:09 pm

2 stops12h 39m

Chicago Midway

mié. 1/28

6:00 am-11:31 am

1 stop7h 31m

$452

OntarioChicago

ONT - MDW

ONTMDW

Ontario

mié. 1/14

7:15 am-8:03 am

2 stops22h 48m

$89

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 19 results
1
2

Compare providers for flights from Ontario to Midway

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Midway in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Chicago Midway Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Chicago Midway Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Chicago Midway Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Chicago Midway Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Chicago Midway Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Midway

Have a flexible travel schedule? Discover the best time to fly to Midway from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Chicago Midway Airport

How far ahead should I book a flight from Ontario to Chicago Midway Airport?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Midway. Price data was last updated on December 5, 2025.

Booking 71 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario to Chicago Midway Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Ontario to Chicago Midway Airport?

Currently, April is the cheapest month in which you can book a flight from Ontario to Chicago Midway Airport (average of $110). Flying from Ontario to Chicago Midway Airport in December is currently the most expensive (average of $232). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to MDW?

Find hourly flight availability from Ontario to Midway. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated diciembre 12, 2025.

It’s typically best to fly out from Ontario to Chicago Midway Airport in the afternoon. Doing so could potentially save you 40% on the flight price compared to flying in the evening, which is usually more expensive.

The best insider tips for Ontario to Chicago Midway Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Ontario to Chicago Midway Airport trip
Airports
ONT

ONT's TSA security is smoother and quicker than LAX, making it ideal for weekday business travelers.

Read more about ONTBy Bill Fink
MDW

Use the 'L' train for a quick, affordable ride to downtown Chicago from MDW, taking less than 30 minutes.

Read more about MDWBy Ramsey Qubein
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on MDW

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Bill Fink

Bill Fink

Expert on ONT

Bill Fink

Bill Fink

Bill is an award-winning travel writer with extensive credits covering airlines and the aviation industry for publications including AARP, AFAR, The Points Guy and Yahoo. Based in Portland, Oregon, Bill has traveled to more than 75 countries - and been late for his flight in most of them. He once achieved top-level frequent flier status for all of American, Delta and United Airlines during a single year.

Read more

Reviews of airlines servicing Midway

Get insights into the airlines that provide service to Midway. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Midway. Reviews last updated diciembre 12, 2025.
See what other customers who have flown with Southwest and Frontier from Ontario to Chicago Midway Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,252 reviews

Overall

7.9

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
7.9
Good
4,252 reviews
Southwest
7.9
Good
4,252 reviews

Overall

7.9

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Frontier
5.8
Fair
3,084 reviews
Southwest
7.9
Good
4,252 reviews

Overall

7.9

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Midway. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Chicago Midway?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Chicago Midway. 2 airlines have flights from Ontario to Chicago Midway on a regular basis. Booking flights from Ontario to Chicago Midway should not be difficult; the airport handles an average of 0 outbound flights to Chicago Midway per day.

  • How long is the flight from Ontario to Chicago Midway Airport?

    Frontier and Delta can get you from Ontario to Chicago Midway Airport in just under 6h 05m. Your travel time can differ by up to 6h 21m. Ontario and Chicago Midway Airport are separated by a distance of 1701 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Ontario to Chicago Midway Airport round-trip?

    According to our current data, Frontier ($110), and Southwest ($237) offers the cheapest pricing from Ontario to Chicago Midway Airport. Frontier is currently priced 71% below the average price you’ll pay for this route.

  • What are the cheapest flights from Ontario to Chicago Midway Airport?

    Looking at all options, your cheapest flight can be booked for $96. While the most popular route (Ontario - Chicago Midway) can be booked for $250 on average, our data indicates $393 when flying from Ontario to Chicago Midway Airport.

  • Can I find deals for flights from Ontario to Midway that include hotel bookings?

    Yes. In addition to deals on Ontario to Midway flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Midway?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Midway.

  • Can I find deals for business class flights from Ontario to Midway?

    Yes. Cheapflights offers flight deals from Ontario to Midway by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Chicago Midway Airport?

    Currently, April is the cheapest month in which you can book a flight from Ontario to Chicago Midway Airport (average of $110). Flying from Ontario to Chicago Midway Airport in December is currently the most expensive (average of $232). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Chicago Midway Airport?

Book flights to Chicago Midway Airport if you plan to visit one of these locations
Lansing
Merrillville
Hammond
Porter
Benton Harbor

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Midway

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to O'Hare Intl flights
San Francisco to O'Hare Intl flights
Ontario to O'Hare Intl flights
Santa Ana to O'Hare Intl flights
Los Angeles to Midway flights
San Diego to O'Hare Intl flights
San Francisco to Midway flights
Las Vegas to O'Hare Intl flights
Sacramento to O'Hare Intl flights
San Diego to Midway flights
Burbank to O'Hare Intl flights
San Jose to O'Hare Intl flights
Reno to O'Hare Intl flights
Sacramento to Midway flights
San Jose to Midway flights
Las Vegas to Midway flights
Santa Ana to Midway flights
Oakland to O'Hare Intl flights
Burbank to Midway flights
Palm Springs to O'Hare Intl flights
Fresno to O'Hare Intl flights
Long Beach to O'Hare Intl flights
Oakland to Midway flights
Reno to Midway flights
Los Angeles to Rockford flights
Fresno to Midway flights
Monterey to O'Hare Intl flights
Long Beach to Midway flights
Santa Barbara to O'Hare Intl flights
Palm Springs to Midway flights
Bakersfield to O'Hare Intl flights
San Luis Obispo to O'Hare Intl flights
Medford to O'Hare Intl flights
San Francisco to Rockford flights
Arcata to O'Hare Intl flights
Santa Rosa to O'Hare Intl flights
Las Vegas to Rockford flights
San Diego to Rockford flights
Redding to O'Hare Intl flights
Medford to Midway flights
Bakersfield to Midway flights
Sacramento to Rockford flights
Tijuana to Midway flights
Tijuana to O'Hare Intl flights
Ontario to Rockford flights
Burbank to Rockford flights
Yuma to O'Hare Intl flights
San Jose to Rockford flights

Top 2 airlines flying from Ontario to Midway

Discover the top 2 airlines that operate flights from Ontario to Midway. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated diciembre 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$110Average$233FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$237Average$398FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.