MDW - ONT

$90 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 3/2. 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
41,299,237 searches in the past 7 days on KAYAK

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$269
Overall average: $461
Frontier
Mon 2/23Wed 3/4
MDW - ONT • 1 stop
Cheapest non-stop
$384
Southwest
Mon 2/9Wed 2/11
MDW - ONT • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
Midway's compact terminal eases quick departures.
Use the ONT Connect Shuttle for stress-free arrivals.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Delta
Cheapest • from $301 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
January
Cheapest • 50% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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!
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

Mon, Feb 23 - Wed, Mar 4
Frontier Logo
8:15 am - 2:30 pm
MDW
-
ONT
8h 15m
1 stop
Frontier Logo
2:06 pm - 2:26 pm
ONT
-
MDW
22h 20m
2 stops
$269Frontier
Fri, Feb 13 - Fri, Feb 20
Frontier Logo
7:45 am - 7:26 am
MDW
-
ONT
25h 41m
1 stop
Frontier Logo
2:21 pm - 3:19 pm
ONT
-
MDW
22h 58m
1 stop
$285Frontier
Tue, Mar 3 - Sun, Mar 8
Frontier Logo
7:30 am - 1:11 pm
MDW
-
ONT
31h 41m
2 stops
Frontier Logo
7:09 pm - 11:20 pm
ONT
-
MDW
26h 11m
1 stop
$291Frontier
Tue, Feb 10 - Tue, Feb 24
Delta Logo
6:00 am - 11:31 am
MDW
-
ONT
7h 31m
1 stop
Delta Logo
1:15 pm - 10:33 pm
ONT
-
MDW
7h 18m
1 stop
$301Delta
Sun, Feb 8 - Wed, Feb 11
Frontier Logo
5:13 pm - 2:27 pm
MDW
-
ONT
23h 14m
1 stop
Frontier Logo
7:17 pm - 11:27 am
ONT
-
MDW
14h 10m
2 stops
$304Frontier
Mon, Feb 23 - Thu, Feb 26
Frontier Logo
8:15 am - 2:30 pm
MDW
-
ONT
8h 15m
1 stop
Frontier Logo
7:22 pm - 11:41 pm
ONT
-
MDW
26h 19m
2 stops
$306Frontier
Tue, Mar 3 - Tue, Mar 10
Delta Logo
9:34 am - 9:05 pm
MDW
-
ONT
13h 31m
2 stops
Delta Logo
10:25 pm - 12:29 pm
ONT
-
MDW
12h 04m
2 stops
$312Delta
Fri, Feb 20 - Mon, Feb 23
Frontier Logo
7:45 am - 8:48 pm
MDW
-
ONT
15h 03m
1 stop
Frontier Logo
6:10 am - 7:47 pm
ONT
-
MDW
11h 37m
2 stops
$322Frontier
Sat, Mar 7 - Sat, Mar 14
Frontier Logo
9:16 pm - 10:59 pm
MDW
-
ONT
27h 43m
2 stops
Frontier Logo
6:39 pm - 12:48 am
ONT
-
MDW
28h 09m
1 stop
$340Frontier
Thu, Mar 5 - Tue, Mar 10
Frontier Logo
3:00 pm - 6:14 pm
MDW
-
ONT
29h 14m
1 stop
Frontier Logo
4:00 pm - 10:25 am
ONT
-
MDW
16h 25m
1 stop
$347Frontier
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 Sundays and avoid leaving on a Tuesday, as it's usually the priciest day. When flying back from Ontario, Wednesday is the cheapest day to fly and Sunday 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 $219 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $599 and $577 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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $465 on average.

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.
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$90
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly and prices are also 25% 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 $90 for a one-way ticket and $269 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?

    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 Airbus A321neo 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 $442 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.
8.0
SouthwestOverall score based on 4261 reviews
8.0Comfort
8.1Boarding
8.6Crew
7.0Food
7.5Entertainment
Airline reviews

3 hour delay. Had to change plans and was still delayed.

2.0 MediocreAnonymous, Jan 2026
SFO - SAN
Read more Southwest reviews

3 hour delay. Had to change plans and was still delayed.

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

The flight crew was extremely rude and especially not helpful when our flight was delayed.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Still a fan of open seating. Flight was on schedule and arrived on time. The 737 MAX is very comfortable.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

Plane crashed into a bus or some other vehicle on the ground while pulling out of the gate. No injuries, but wing tip was damaged and returned to gate for “maintenance issues” and we departed 5 hours later because the plane went out of service and new plane was flown in from a nearby airport, Midway.

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

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)