ONT - MDW

$96 Find Cheap Flights from Ontario to Chicago Midway Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Midway departing on 6/30. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Chicago Midway Airport

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

Cheap Flights from Ontario to Midway (ONT-MDW)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Midway 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 Ontario to Midway

Thu, Jul 3 - Sat, Jul 12
Frontier Logo
12:59 am - 11:40 amONT-MDW
8h 41m1 stop
Frontier Logo
2:44 pm - 11:50 pmMDW-ONT
11h 06m1 stop
$200Frontier
Find Deal
Thu, Jul 3 - Fri, Jul 11
Frontier Logo
12:59 am - 11:40 amONT-MDW
8h 41m1 stop
Frontier Logo
12:35 pm - 9:09 amMDW-ONT
22h 34m1 stop
$206Frontier
Find Deal
Thu, Jul 10 - Sat, Jul 12
Frontier Logo
5:21 pm - 11:41 amONT-MDW
16h 20m1 stop
Frontier Logo
2:44 pm - 11:50 pmMDW-ONT
11h 06m1 stop
$210Frontier
Find Deal
Tue, Oct 14 - Tue, Oct 21
Delta Logo
10:59 pm - 9:51 amONT-MDW
8h 52m1 stop
Delta Logo
9:30 am - 7:42 pmMDW-ONT
12h 12m2 stops
$324Delta
Find Deal
Tue, Oct 14 - Tue, Oct 21
Delta Logo
10:59 pm - 12:32 pmONT-MDW
11h 33m2 stops
Delta Logo
9:30 am - 7:42 pmMDW-ONT
12h 12m2 stops
$329Delta
Find Deal
Tue, Sep 30 - Sat, Oct 4
Delta Logo
10:59 pm - 9:51 amONT-MDW
8h 52m1 stop
Delta Logo
6:00 am - 11:24 amMDW-ONT
7h 24m1 stop
$337Delta
Find Deal
Tue, Jul 15 - Sat, Jul 19
Southwest Logo
5:45 am - 11:30 amONT-MDW
3h 45mnonstop
Southwest Logo
5:25 pm - 7:35 pmMDW-ONT
4h 10mnonstop
$397Southwest
Find Deal
Sat, Jul 12 - Sat, Jul 26
Southwest Logo
6:15 am - 4:00 pmONT-MDW
7h 45m1 stop
Southwest Logo
5:25 pm - 7:35 pmMDW-ONT
4h 10mnonstop
$407Southwest
Find Deal
Sat, Jul 12 - Sat, Jul 19
Southwest Logo
6:00 am - 11:50 amONT-MDW
3h 50mnonstop
Southwest Logo
3:05 pm - 11:15 pmMDW-ONT
10h 10m2 stops
$412Southwest
Find Deal
Tue, Jul 8 - Tue, Jul 15
Southwest Logo
9:35 pm - 5:00 amONT-MDW
5h 25m1 stop
Southwest Logo
8:55 am - 12:25 pmMDW-ONT
5h 30m1 stop
$417Southwest
Find Deal
Expert advice

Expert advice for your flight from Ontario to Midway

 
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
ONT

ONT offers streamlined security with average wait times of 6-15 minutes, making it ideal for business travelers with early morning flights.

Read more about ONTby Jennifer Simonson
MDW

The CTA Orange Line offers a direct train from MDW to downtown Chicago, taking about 25-30 minutes, perfect for quick city access.

Read more about MDWby Stefanie Waldek
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
Useful Info

KAYAK's insights & trends for Ontario to Midway flights

Get data-powered insights and trends into flights from Ontario to Midway 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 Ontario to Chicago Midway Airport?

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

Your flight ticket price will generally be cheaper if you fly to Chicago Midway Airport on a Wednesday and more expensive on a Sunday. On your return trip to Ontario, you should consider flying back on a Tuesday, and avoid Saturdays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Chicago Midway Airport, 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 Ontario to Chicago Midway Airport is October, where tickets cost $166 (return) on average. On the other hand, the most expensive months are January and June, where the average cost of round-trip tickets is $543 and $470 respectively.

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

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

To get a below average price on the flight from Ontario to Chicago Midway Airport, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Good to know

Low seasonJanuary
High seasonAugust
Cheapest flight$96
Best time to beat the crowds but there is an average 62% increase in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from Ontario to Chicago Midway Airport

When to book flights from Ontario to Midway

Are your dates flexible? Find out the best times to travel from Ontario to Midway 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 Ontario to Chicago Midway Airport flights

  • What is the baggage allowance on Delta flights from Ontario to Chicago Midway Airport?

    The baggage allowance for Delta flights from Ontario to Chicago Midway Airport depends on several factors such as the ticket type and frequent flyer status. Passengers are allowed to bring one carry-on bag and one personal item free of charge. For checked baggage, passengers are permitted to check up to 10 bags on flights operated by Delta. The weight of each checked bag must not exceed 50 lbs for economy and 70 lbs for Delta One.

  • What class seat options are available on Frontier flights from Ontario to Chicago Midway Airport?

    Frontier Airlines does not offer traditional seating classes such as Economy or Business Class. All seats on Frontier flights from Ontario to Chicago Midway Airport are standard economy seats with the option to select and pay for seating based on personal preferences. Frontier has a Green Class which is a sustainable seat upgrade providing travelers with a carbon offset that supports projects that reduce emissions.

  • What services are offered to passengers with reduced mobility on Southwest Airlines flights from Ontario to Chicago Midway Airport?

    Southwest Airlines provides several services and assistance to passengers with reduced mobility on flights from Ontario to Chicago Midway Airport. The airline allows passengers to travel with wheelchairs or other assistive devices at no extra charge. Southwest Airlines can also provide seating arrangements based on the needs of passengers with reduced mobility.

  • How do I get from Chicago Midway Airport to the city center?

    There are several transportation options available for getting from MDW to the city center. The CTA Orange Line train provides service from MDW to downtown Chicago and takes about 27 minutes on average. Taxis are also readily available at MDW, and the ride to the city center takes approximately 20-30 minutes. Uber and Lyft are available as an alternative to traditional taxis, with ride times and costs similar to taking a taxi. Taking the CTA Orange Line train usually takes around 27 minutes, while taxi and rideshare rides can take between 20-30 minutes, depending on traffic.

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

    In the last 3 days, the lowest price for a flight from Ontario to Chicago Midway Airport was $96 for a one-way ticket and $200 for a round-trip.

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

    A passport is not required to fly from Ontario to Chicago Midway Airport.

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

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

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

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the Ontario to Chicago Midway Airport flight route.

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

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

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

    The two airlines most popular with KAYAK users for flights from Ontario to Chicago are Southwest and Delta. With an average price for the route of $413 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $468 and an overall rating of 8.0.

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

    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 Ontario to Chicago Midway Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago Midway Airport from Ontario 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 Ontario to Chicago Midway Airport?

    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 Chicago Midway Airport with an airline and back to Ontario with another airline. Booking your flights between Ontario and MDW 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 Ontario to Chicago Midway Airport?

    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 Chicago Midway Airport from Ontario 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 Ontario to Chicago Midway Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $248 or less one-way and $371 or less round-trip.
  • Delta has made a commitment to invest $1 billion over the next decade to reduce its carbon footprint and become carbon neutral. A significant portion of this investment will go toward purchasing SAF including flights from Ontario (ONT) to Chicago Midway Airport (MDW).
  • Southwest Airlines allows cats and dogs to travel with passengers in the cabin under the seat in front of them including for flights from Ontario (ONT) to Chicago Midway Airport (MDW).
  • United Airlines allows children under 12 to sit next to an accompanying adult for no additional charge on flights from Ontario (ONT) to Chicago Midway Airport (MDW). This policy applies to all United flights and seat categories, including Basic Economy. Families traveling with children will also be allowed to pre-board.
  • Connecting flights from Ontario (ONT) to Chicago Midway Airport (MDW) have layovers in different cities depending on the airline. Some common layovers for this route include Atlanta (ATL), Denver (DEN), Las Vegas (LAS), Dallas (DFW), and Phoenix (PHX).
  • Ontario Airport (ONT) has two major passenger terminals, Terminal 2 and Terminal 4. Terminal 4 serves domestic flights like flights from Ontario to Chicago Midway Airport and is located on the west side of the airport.

Prefer to fly direct from Ontario to Chicago Midway Airport?

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

Direct departures

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

Direct returns

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

Reviews of the top 3 airlines serving from Ontario to Midway

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Chicago. 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 Ontario to Midway? 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 4280 reviews
7.1Food
8.6Crew
8.2Boarding
7.6Entertainment
8.0Comfort
Airline reviews

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

10.0 ExcellentMichael, Jun 2025SMF - SEA
Read more Southwest reviews

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

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

Great flight, 47 passengers on a 180 seat plane. Stewardess was pleasant and cheerful.

I liked the crew member who gave flight instructions on "in case of a problem:. The seats are so small that only a young teenager could sit in middle seat.

Great flight staff. Ease of boarding. Overall, very uneventful and easy trip.

Flight was awfully bumpy and landing was a bit jolting. I was in the restroom when snacks and drinks were served and was not asked if i wanted any. I had to ask for water finally.

Employees were kind and funny, as always! Flight was late but no announcements were made for people with tight connections to help them transition quickly. No service due to turbulence.

I recently flew Southwest from San Jose to Honolulu. I was very impressed with the flight crew, especially the flight attendant in charge of the front of the plane. She came through the aisle at least five times for drinks and water, and two times for snacks. I have not seen such service since I flew first class. Also, for the first time, they gave us the correct baggage claim number, and the luggage came out quickly. I can't wait for Southwest to have assigned seating! I absolutely hate the Cattle Call boarding procedure and the mad dash to get seats and overhead bins. However, the boarding was efficient.

We had a nice flight. Boarding was easy, our seats were comfortable and the on board service was pleasant.

Service was great, boarding and exiting went smoothly, and the flight was very pleasant.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

Delta flight was on time, seats were comfortable, and crew was nice.

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

It was terrible, if they ran flights on time it would make a big difference.

Delta seems to be improving in many areas, except they are super bad with the food available. Bring back normal food service on long flights.

I actually received a notification from kayak on email but not one by text from Delta when my departure gait changed and I almost missed my flight

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

The crew was delayed because they came on another flight that was delayed due to weather 10pm flight left at 1.30 am The airline made no effort to align alternate crew

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Frontier had yet another flight cancellation. Have never made a complete round trip with this airline without at least one leg getting cancelled. Miserable flights - dirty, uncomfortable planes that apparently always have issues since I've had multiple delays and cancellations with them.

Flight was delayed 3 times, would have been nice to have received text message instead of email notifications. Frontier app wasn’t even updated accordingly, no gate number disclosed. No agent at front desk of gate to inform of delay. Very confused and left if the dark

The flight itself was ok and the pilot was very communicative. However, our flight was delayed for almost 3 hours, the gate was changed 3 times and there was no communication as we were waiting. The flight staff was overall a little crabby...I understand as they probably had a long day but we all did.

They changed the timing , first delayed by 4 hours then went back to 40 mins late, we had to run back to airport to not miss our flight. This is ridiculous

No frills for sure. No gate announcements about flight delay, not even water to drink on the flight.

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

Information on your arrival and departure airports

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