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$108+ Cheap flights from Midway (MDW) to Ontario (ONT)

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 5/12. Fares are subject to change and may not be available on all flights or dates of travel.
MDW — ONT
mai 6 — mai 131
mar. 5/6
mar. 5/13
1 adult, Economy
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Cheap flight deals from Midway to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Midway (MDW) to Ontario (ONT). 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 mai 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$209
(Frontier)

One-way from

$108
(Cheapflightsfares)

Popular in

December

Cheapest in

July

Average price

$203

Good round-trip deal

$458 or less
Provider with most accurate pricing for Chicago Midway-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago Midway-Ontario flights.
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From Chicago Midway to Ontario
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One-way flight from Chicago Midway to Ontario
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Price to beat on a round-trip flight from Chicago Midway to Ontario.
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Find flight deals from Midway to Ontario

Cheapest flights from Midway to Ontario
Explore the most affordable flight options available from Midway to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on mai 1, 2025.

This Frontier deal was found by Cheapflights users on 4/29. 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.
jeu. 5/292:44 pmMDW - ONT
1 stop20h 31mFrontier
mer. 6/45:21 pmONT - MDW
1 stop25h 32mFrontier
Deal found 4/29$209
This Southwest deal was found by Cheapflights users on 4/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 6/18:30 pmMDW - ONT
Nonstop4h 15mSouthwest
lun. 6/22:55 pmONT - MDW
1 stop5h 55mSouthwest
Deal found 4/29$237
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 6/149:24 amMDW - ONT
2 stops8h 53mDelta
mar. 6/1710:05 pmONT - MDW
1 stop9h 36mDelta
Deal found 4/28$262

Cheapflights Fare Finder

Customize your flight search to find flights from Midway 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, Cheapflights users made 2,558,603 searches. Data last updated mai 1, 2025.
Use the filters below to find and compare flights from Chicago Midway Airport to Ontario that are best for you.

Fly from

Midway

Fly to

Ontario

Route

Depart

Return

Price

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

jeu. 5/29

2:44 pm-9:15 am

1 stop20h 31m

Ontario

mer. 6/4

5:21 pm-8:53 pm

1 stop25h 32m

$209

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

dim. 6/1

8:30 pm-10:45 pm

Nonstop4h 15m

Ontario

lun. 6/2

2:55 pm-10:50 pm

1 stop5h 55m

$237

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

sam. 6/14

9:24 am-4:17 pm

2 stops8h 53m

Ontario

mar. 6/17

10:05 pm-9:41 am

1 stop9h 36m

$262

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

lun. 5/12

8:03 pm-11:59 pm

1 stop5h 56m

$108

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

ven. 6/6

12:35 pm-2:45 pm

Nonstop4h 10m

$114

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

sam. 6/14

9:24 am-4:17 pm

2 stops8h 53m

$134

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Compare providers for flights from Midway to Ontario

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 Midway to Ontario in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars

*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 Chicago Midway Airport-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago Midway Airport-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago Midway Airport-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago Midway Airport-Ontario 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 Chicago Midway Airport-Ontario 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 Midway to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Midway 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 Chicago Midway Airport to Ontario

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

Currently, August is the cheapest month in which you can book a flight from Chicago Midway Airport to Ontario (average of $246). Flying from Chicago Midway Airport to Ontario in March is currently the most expensive (average of $328). 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 MDW to ONT?

Find hourly flight availability from Midway to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated mai 1, 2025.

One of the essential ways to save on airfare from Chicago Midway Airport to Ontario is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 11% on airfare.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated mai 1, 2025.
Read through reviews of airlines operating flights from Chicago to Ontario, such as Southwest, Delta and Frontier. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,294 reviews

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Southwest
8.0
Very good
4,294 reviews
Southwest
8.0
Very good
4,294 reviews

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Delta
8.0
Very good
7,934 reviews
Southwest
8.0
Very good
4,294 reviews

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Frontier
6.0
Okay
3,287 reviews
Southwest
8.0
Very good
4,294 reviews

Comfort

8.0

Entertainment

7.6

Boarding

8.2

Overall

8.0

Food

7.1

Crew

8.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Related info for your journey

Find useful and relevant information for your journey from Midway to Ontario. 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 into for flights to Ontario from Chicago Midway?

    If you book a flight to Ontario from Chicago Midway, you will be flying to Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario. There are 0 flights from Chicago Midway to Ontario per day from 2 different airlines.

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

    According to our current data, Frontier ($209), Southwest ($237), and Delta ($262) offers the cheapest pricing from Chicago Midway Airport to Ontario. Frontier is priced at 37% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Chicago Midway Airport to Ontario one-way?

    The cheapest airlines for a one-way flight from Chicago Midway Airport to Ontario are Frontier ($108), Southwest ($114), and Delta ($134).

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

    Looking at all options, your cheapest flight can be booked for $421. While the most popular route (Chicago Midway - Ontario) can be booked for $211 on average our data indicates $490 when flying from Chicago Midway Airport to Ontario.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Midway to Ontario 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 Chicago Midway Airport to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Chicago Midway Airport to Ontario (average of $246). Flying from Chicago Midway Airport to Ontario in March is currently the most expensive (average of $328). 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.

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Top 2 airlines flying from Midway to Ontario

Discover the top 2 airlines that operate flights from Midway to Ontario. 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 mai 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$135Average$230FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$298Average$455FlexibilityNo cancel feeOn-time63%

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