MDW - ONT

$68 Find Cheap Flights from Chicago Midway Airport to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Midway to Ontario departing on 1/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Ontario, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Midway to Ontario (MDW-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Midway to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Midway to Ontario

Thu, Dec 4 - Sun, Dec 7
Frontier Logo
8:05 am - 6:35 pmMDW-ONT
12h 30m1 stop
Frontier Logo
2:59 pm - 10:18 pmONT-MDW
29h 19m1 stop
$134Frontier
Find Deal
Fri, Jan 9 - Sun, Jan 11
Frontier Logo
7:00 am - 6:03 pmMDW-ONT
13h 03m1 stop
Frontier Logo
6:00 am - 8:02 pmONT-MDW
12h 02m1 stop
$138Frontier
Find Deal
Fri, Dec 5 - Sun, Dec 7
Frontier Logo
12:18 pm - 2:25 pmMDW-ONT
28h 07m1 stop
Frontier Logo
2:59 pm - 10:18 pmONT-MDW
29h 19m1 stop
$142Frontier
Find Deal
Fri, Dec 12 - Sun, Dec 14
Frontier Logo
8:05 am - 5:34 pmMDW-ONT
11h 29m1 stop
Frontier Logo
2:59 pm - 10:18 pmONT-MDW
29h 19m1 stop
$146Frontier
Find Deal
Thu, Dec 11 - Sun, Dec 14
Frontier Logo
8:05 am - 6:35 pmMDW-ONT
12h 30m1 stop
Frontier Logo
2:59 pm - 10:18 pmONT-MDW
29h 19m1 stop
$163Frontier
Find Deal
Thu, Nov 13 - Mon, Nov 17
Frontier Logo
9:39 pm - 7:29 amMDW-ONT
11h 50m1 stop
Frontier Logo
7:54 am - 5:01 pmONT-MDW
7h 07m1 stop
$176Frontier
Find Deal
Thu, Nov 13 - Sun, Nov 16
Frontier Logo
12:30 pm - 11:50 pmMDW-ONT
13h 20m1 stop
Frontier Logo
6:53 am - 11:30 amONT-MDW
26h 37m1 stop
$184Frontier
Find Deal
Thu, Nov 20 - Mon, Nov 24
Frontier Logo
4:00 pm - 4:21 pmMDW-ONT
26h 21m1 stop
Frontier Logo
3:21 pm - 10:17 pmONT-MDW
28h 56m1 stop
$206Frontier
Find Deal
Thu, Nov 13 - Sat, Nov 15
Frontier Logo
12:30 pm - 11:50 pmMDW-ONT
13h 20m1 stop
Frontier Logo
12:05 pm - 11:30 amONT-MDW
21h 25m1 stop
$222Frontier
Find Deal
Fri, Nov 14 - Mon, Nov 17
Frontier Logo
12:30 pm - 11:50 pmMDW-ONT
13h 20m1 stop
Frontier Logo
7:54 am - 5:01 pmONT-MDW
7h 07m1 stop
$225Frontier
Find Deal

Everything you should know

Our travelers' advice
AI-generated summary based on content written by travel experts
Midway's compact terminal eases quick departures.
Use the ONT Connect Shuttle for stress-free arrivals.
Expert advice
Expert advice
Expert advice
Expert advice
When to travel
January
Cheapest • 47% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$134
Overall average: $518
Frontier
Thu 12/4Sun 12/7
MDW - ONT • 1 stop
Cheapest non-stop
$425
Southwest
Sat 12/13Tue 12/16
MDW - ONT • Non-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Booking Insights

KAYAK's insights & trends for Midway to Ontario flights

Get data-powered insights and trends into flights from Midway to Ontario to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Chicago Midway Airport to Ontario?

The average price of all round-trip flights from Chicago Midway Airport to Ontario clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Chicago Midway Airport to Ontario, look for departures on Tuesdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Ontario, Wednesday is the cheapest day to fly and Saturday is the most expensive.

What is the cheapest month to fly from Chicago Midway Airport to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago Midway Airport to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago Midway Airport to Ontario is January, where tickets cost $221 (return) on average. On the other hand, the most expensive months are June and September, where the average cost of round-trip tickets is $577 and $554 respectively.

Can I save money by flying with a layover from Chicago Midway Airport to Ontario?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $584, prices are generally cheapest when you fly direct.

Expert advice

Expert advice for your flight from Midway to Ontario

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
MDW

Midway offers a compact terminal with easy navigation and a variety of dining options, making it ideal for quick departures.

Read more about MDWby Stefanie Waldek
ONT

For a stress-free arrival, use the ONT Connect Shuttle from Rancho Cucamonga Station, included in the Metrolink fare.

Read more about ONTby Jennifer Simonson
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on MDW

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Jennifer Simonson

Jennifer Simonson

Expert on ONT

Jennifer Simonson

Jennifer Simonson

Jennifer Simonson is driven by her lifelong commitment to exploring the globe. Her insatiable curiosity had led her to immerse herself into diverse locations like Oklahoma City and Pismo. Her hotel recommendations are the result of the myriad hotels she's stayed at across her travels. Along her journey, she cherishes engaging conversations with locals, indulging in the finest ice cream, trying her hand at surfing, and embarking on nature-filled hikes.

Read more

Good to know

Low seasonJuly
Cheapest flight$68
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Chicago Midway Airport to Ontario

When to book flights from Midway to Ontario

Are your dates flexible? Find out the best times to travel from Midway to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago Midway Airport to Ontario flights

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

    In the last 3 days, the lowest price for a flight from Chicago Midway Airport to Ontario was $68 for a one-way ticket and $134 for a round-trip.

  • Do I need a passport to fly between Chicago Midway Airport and Ontario?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airlines offer Wi-Fi service onboard planes from Chicago Midway Airport to Ontario?

    American Airlines, and Alaska Airlines offer inflight Wi-Fi service on the Chicago Midway Airport to Ontario flight route.

  • Which aircraft models fly most regularly from Chicago Midway Airport to Ontario?

    The Boeing 737-800 is the aircraft model that flies most regularly on the Chicago Midway Airport to Ontario flight route.

  • On which days can I fly direct from Chicago Midway Airport to Ontario?

    There are nonstop flights from Chicago Midway Airport to Ontario on a daily basis.

  • Which is the best airline for flights from Chicago to Ontario, Southwest or Frontier?

    The two airlines most popular with KAYAK users for flights from Chicago to Ontario are Southwest and Frontier. With an average price for the route of $426 and an overall rating of 8.0, Southwest is the most popular choice. Frontier is also a great choice for the route, with an average price of $223 and an overall rating of 5.8.

  • How does KAYAK find such low prices on flights from Chicago Midway Airport to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago Midway Airport to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago Midway Airport to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Chicago Midway Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago Midway Airport to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Chicago Midway Airport with another airline. Booking your flights between Chicago Midway Airport and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago Midway Airport to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Chicago Midway Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Chicago Midway Airport to Ontario

  • Looking for a cheap flight? 25% of our users found flights on this route for $183 or less one-way and $579 or less round-trip.

Prefer to fly direct from Chicago Midway Airport to Ontario?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Chicago Midway to Ontario.
Find which airlines fly direct from Chicago Midway Airport to Ontario Airport, which days they fly and book direct flights.

Direct departures

Chicago Midway to Ontario

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

Ontario to Chicago Midway

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Reviews of the top airlines flying from Midway to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Midway to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4238 reviews
7.0Food
8.6Crew
8.0Comfort
8.1Boarding
7.5Entertainment
Airline reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

8.0 ExcellentGreg, Oct 2025OAK - BUR
Read more Southwest reviews

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

All was good. I just had a hard time getting connected to the WiFi/internet during the flight

Delays delays delays. Late taking off, late landing, wait for a gate, etc.

Connecting flight is on time and boarding was a breeze!

Better and more food and drinks. Put msnbc and free speech tv on the news channel selection list.

Very smooth checking in our luggage with a super pleasant SW agent. I enjoyed a fun entertaining movie.

after landing, we stay 2 hours on the taxi way before reaching the gate The airline and the crew were good though

First time traveling on Southwest since bag fees were implemented. Usual good service. Just more expensive now.

I'm not a fan of Southwest's model. I don't like the herding style of boarding.

It was a perfect flight in all aspects! Both legs!

Terrible. Flight cancelled with no reasoning and no flights to rebook. Employees were useless and did nothing to help. Did not even know where to retrieve luggage from the cancelled flight. Flyers beware.

No fault of Frontier staff: plane was very late, reached Orlando at 1 am, took a while to get luggage. Weather, gov financial shutdown impact on TSA, air controllers seemed to have multiple flights backed up. Frontier staff seemed to cope as gracefully as possible. It did reassure me that I and my new hip could adapt to travel challenges. Food/entertainment were irrelevant to my trip.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

Boarding was on time and plane departed as scheduled. There are obviously no amenities (food, drink, entertainment) on Frontier, but there also didn't seem to be any issues with luggage space either.

Inbound plane was on time and flight departed on time with no issues while boarding.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

i was unable to check in the flight. refund requested

It was well done. It was my first time flying with them and I was nervous b/c I have heard of many cancelled and/or delray flights. Everything went smoothly.

Just know that everything, and I mean everything is “ala cart”. 60$ just to put something in the overhead bin. I will never fly Frontier again nor do I recommend them to anyone else.

I think Frontier was very good at communication. Their app worked very well. Loading was great and the flight was nice and easy.

Everything you need to know for your flight from Midway to Ontario

Information on your arrival and departure airports

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