MDW - ONT

$120 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 9/5. 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
Travelers love KAYAK
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Everything you should know

Cheapest round-trip
$239
Typical prices: $291-$372
Southwest
Sat 8/15Sat 8/22
MDW - ONT • Non-stop
Cheapest one-way
$120
Typical prices: $126-$279
Southwest
Sat 9/5
MDW - ONT • Non-stop
Top airlines
Southwest
Cheapest • from $239 (round-trip)
Southwest
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Every day
You can fly direct with Southwest. Average duration is 4h 08m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
When to travel
February
Cheapest • 100% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Expert advice
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

Sat, Aug 15 - Sat, Aug 22
Southwest Logo
6:00 pm - 8:10 pm
MDW
-
ONT
4h 10mnonstop
Southwest Logo
11:55 pm - 5:45 am
ONT
-
MDW
3h 50mnonstop
$239Southwest
Thu, Aug 6 - Mon, Aug 10
Frontier Logo
9:27 pm - 8:41 am
MDW
-
ONT
13h 14m
1 stop
Frontier Logo
8:17 am - 5:22 pm
ONT
-
MDW
7h 05m
1 stop
$240Frontier
Wed, Aug 19 - Tue, Aug 25
Southwest Logo
6:00 am - 12:30 pm
MDW
-
ONT
8h 30m
1 stop
Southwest Logo
11:55 pm - 5:45 am
ONT
-
MDW
3h 50mnonstop
$249Southwest
Thu, Aug 6 - Tue, Aug 11
Frontier Logo
9:27 pm - 8:41 am
MDW
-
ONT
13h 14m
1 stop
Frontier Logo
8:17 am - 4:51 pm
ONT
-
MDW
6h 34m
1 stop
$250Frontier
Wed, Aug 19 - Tue, Aug 25
Southwest Logo
5:25 pm - 7:35 pm
MDW
-
ONT
4h 10mnonstop
Southwest Logo
6:40 am - 5:10 pm
ONT
-
MDW
8h 30m
2 stops
$254Southwest
Wed, Oct 14 - Sat, Oct 17
Southwest Logo
3:35 pm - 5:45 pm
MDW
-
ONT
4h 10mnonstop
Southwest Logo
11:55 pm - 5:45 am
ONT
-
MDW
3h 50mnonstop
$255Southwest
Wed, Aug 12 - Sat, Aug 15
Southwest Logo
1:55 pm - 5:35 pm
MDW
-
ONT
5h 40m
1 stop
Southwest Logo
10:15 am - 8:15 pm
ONT
-
MDW
8h 00m
1 stop
$259Southwest
Thu, Aug 27 - Mon, Aug 31
Frontier Logo
9:26 pm - 8:38 am
MDW
-
ONT
13h 12m
1 stop
Frontier Logo
8:17 am - 8:31 pm
ONT
-
MDW
10h 14m
1 stop
$260Frontier
Wed, Aug 19 - Tue, Aug 25
Southwest Logo
6:00 pm - 10:00 pm
MDW
-
ONT
6h 00m
1 stop
Southwest Logo
7:00 am - 4:00 pm
ONT
-
MDW
7h 00m
2 stops
$264Southwest
Wed, Aug 12 - Wed, Aug 19
Southwest Logo
5:25 pm - 7:35 pm
MDW
-
ONT
4h 10mnonstop
Southwest Logo
9:40 am - 5:35 pm
ONT
-
MDW
5h 55m
1 stop
$265Southwest
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 Wednesdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Ontario, Tuesday is the cheapest day to fly and Friday 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 February, where tickets cost $0 (return) on average. On the other hand, the most expensive months are September and December, where the average cost of round-trip tickets is $762 and $683 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 $467, prices are generally cheapest when you fly direct.

Find deals
Expert advice

Expert advice for your flight from Midway to Ontario

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on MDW

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 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 seasonOctober
Cheapest flight$120
Best time to beat the crowds with an average 42% drop in price.
Most popular time to fly with an average 8% increase in price.
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 5 days, the lowest price for a flight from Chicago Midway Airport to Ontario was $120 for a one-way ticket and $239 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?

    JetBlue, Alaska Airlines, and American 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 MAX 8 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.

  • 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 $372 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 airline 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.
7.9
SouthwestOverall score based on 4246 reviews
7.5Entertainment
8.0Comfort
7.0Food
8.1Boarding
8.6Crew
Airline reviews

It was just okay, no frills, basic transportation with no luxury. No screens on the seats, no water or drinks on a short flight. Full flight but at least it was on time.

6.0 GoodSteven, Jun 2026
LAS - ONT
Read more Southwest reviews

It was just okay, no frills, basic transportation with no luxury. No screens on the seats, no water or drinks on a short flight. Full flight but at least it was on time.

OKay. I sat in the back of the plane and it was really loud between babies and little kids, and adults who.like to talk a lot and loudly most of the flight.

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

I flew twice this week on Southwest, was delayed over 2 hours both ways. From Pittsburgh to Chicago it was due to weather but the gate agents, pilot etc were great at updating everyone. Today from Midway to Pittsburgh the plane had come from an international location, kept getting delayed, no information was given until we were delayed for the third time. It was ridiculous, whoever scheduled that plane to fly to Pittsburgh after didn’t consider a lot of things.

The staff was very friendly, professional, and courteous. The overall flight was a great experience.

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

Flight was delayed more than 2 hour do the scheduling issues and then some confusing weight and balance matters, followed by a miscommunication with the tower on which runway was going to be used based on the airplane weight. All these things should have been figured out in advance. Instead of arriving at 12:30 a.m. we arrived at 2:30 a.m. very difficult to find a taxi or other transport at SFO. Luggage was delayed. An extension of an unpleasant flight day

Our flight to Oakland was great bc the plane was new but it was delayed by 15min not bad at all. Over all it was an 8/10

The flight in it self was good. The delays looking for pilots was unexpected.

no entertainment options available on a 4+ hour flight. packed in like sardines. one bathroom. late flight.

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

Information on your arrival and departure airports

Chicago Midway Airport (MDW)
Ontario (ONT)