How long does it take to fly to Ontario?

Average flight duration from Wisconsin to Ontario depends on which airport you fly into and out of. Flying from Madison to Los Angeles is 4h 17m on average, while flying from Milwaukee to Los Angeles is 5h 53m on average. Los Angeles is the most popular airport in Ontario.

What is the cheapest airline that flies from Wisconsin to Ontario?

United Airlines, Delta, and Frontier are the most popular carriers operating from Wisconsin to Ontario

How many flights depart from Wisconsin to Ontario on average per week?

As of September 2026, 4 flights take off from Wisconsin and land in Ontario each week. The most common flight departure day for this route is Mon, with 25% of weekly flights taking off on this day.

What airlines fly to Ontario?

American Airlines, United Airlines and Allegiant Air are the top three most popular airlines that fly to Ontario from Wisconsin according to our data. American Airlines is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 8 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Wisconsin to Ontario Airport?

Prices for flights from Wisconsin to Ontario Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Wisconsin to Ontario Airport?

The number of operators available for flights from Wisconsin to Ontario Airport is 5 as of September 2026.

How old do you have to be to fly from Wisconsin to Ontario Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Wisconsin to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$72 Cheap Flights from Wisconsin to Ontario in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Wisconsin to Los Angeles

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 11:51 pmMSP Minneapolis St Paul-ONT Ontario

18h 51m1 stop Denver Intl

11:52 am - 12:04 amONT Ontario-MSP Minneapolis St Paul

10h 12m1 stop Denver Intl

$140Frontier

Sat, Nov 7 - Tue, Nov 10

7:00 am - 11:47 pmMSP Minneapolis St Paul-ONT Ontario

18h 47m1 stop Denver Intl

6:15 am - 12:08 amONT Ontario-MSP Minneapolis St Paul

15h 53m1 stop Denver Intl

$140Frontier

Wed, Sep 30 - Wed, Oct 7

8:20 pm - 10:49 pmORD Chicago O'Hare Intl-ONT Ontario

4h 29mnonstop

1:52 pm - 12:55 amONT Ontario-ORD Chicago O'Hare Intl

9h 03m1 stop San Francisco

$249United Airlines

Thu, Oct 1 - Mon, Oct 5

8:46 pm - 11:19 pmORD Chicago O'Hare Intl-ONT Ontario

4h 33mnonstop

6:00 am - 12:15 pmONT Ontario-ORD Chicago O'Hare Intl

4h 15mnonstop

$258American Airlines

Wed, Jan 20 - Sun, Jan 24

7:18 pm - 11:58 pmORD Chicago O'Hare Intl-ONT Ontario

6h 40m1 stop Salt Lake City

7:05 am - 5:59 pmONT Ontario-ORD Chicago O'Hare Intl

8h 54m1 stop Atlanta Hartsfield-Jackson

$259Delta

Wed, Dec 16 - Thu, Dec 24

5:30 am - 11:08 amORD Chicago O'Hare Intl-ONT Ontario

7h 38m1 stop Atlanta Hartsfield-Jackson

1:15 pm - 9:47 pmONT Ontario-ORD Chicago O'Hare Intl

6h 32m1 stop Salt Lake City

$259Delta

Thu, Nov 12 - Sat, Nov 14

8:33 pm - 10:59 pmORD Chicago O'Hare Intl-ONT Ontario

4h 26mnonstop

1:56 pm - 12:59 amONT Ontario-ORD Chicago O'Hare Intl

9h 03m1 stop San Francisco

$268United Airlines

Tue, Sep 15 - Sat, Sep 19

8:46 pm - 11:19 pmORD Chicago O'Hare Intl-ONT Ontario

4h 33mnonstop

1:24 pm - 9:49 pmONT Ontario-ORD Chicago O'Hare Intl

6h 25m1 stop Phoenix Sky Harbor Intl

$268American Airlines

Wed, Jan 20 - Sun, Jan 24

6:30 am - 10:30 amORD Chicago O'Hare Intl-ONT Ontario

6h 00m1 stop Denver Intl

7:59 pm - 6:20 amONT Ontario-ORD Chicago O'Hare Intl

8h 21m1 stop Seattle/Tacoma Intl

$289Multiple Airlines

Wed, Sep 16 - Fri, Sep 18

5:46 pm - 10:17 amORD Chicago O'Hare Intl-ONT Ontario

18h 31m1 stop Seattle/Tacoma Intl

6:15 am - 12:24 amONT Ontario-ORD Chicago O'Hare Intl

16h 09m1 stop Denver Intl

$320Multiple Airlines

Fri, Oct 9 - Sun, Oct 11

Cheap last minute flights

Enter your travel dates to find the best prices.

2:41 pm - 11:50 pmORD Chicago O'Hare Intl-ONT Ontario

11h 09m1 stop Denver Intl

8:24 pm - 5:38 amONT Ontario-ORD Chicago O'Hare Intl

7h 14m1 stop Las Vegas Harry Reid Intl

$219Frontier

Wed, Sep 2 - Mon, Oct 5

8:45 am - 7:01 pmORD Chicago O'Hare Intl-ONT Ontario

12h 16m1 stop Houston George Bush Intcntl

11:45 am - 12:23 amONT Ontario-ORD Chicago O'Hare Intl

10h 38m1 stop Denver Intl

$238Frontier

Wed, Sep 2 - Sat, Sep 12

8:06 pm - 10:35 pmORD Chicago O'Hare Intl-ONT Ontario

4h 29mnonstop

1:18 pm - 11:59 pmONT Ontario-ORD Chicago O'Hare Intl

8h 41m1 stop Denver Intl

$287United Airlines

Wed, Sep 2 - Thu, Sep 10

8:06 pm - 10:35 pmORD Chicago O'Hare Intl-ONT Ontario

4h 29mnonstop

9:01 am - 6:32 pmONT Ontario-ORD Chicago O'Hare Intl

7h 31m1 stop San Francisco

$287United Airlines

Wed, Sep 2 - Wed, Sep 9

7:48 am - 12:16 pmORD Chicago O'Hare Intl-ONT Ontario

6h 28m1 stop Salt Lake City

5:15 pm - 7:41 amONT Ontario-ORD Chicago O'Hare Intl

12h 26m2 stops Salt Lake City Detroit Metropolitan Wayne County

$293Delta

Wed, Sep 2 - Mon, Oct 5

7:44 pm - 11:34 pmORD Chicago O'Hare Intl-ONT Ontario

5h 50m1 stop Salt Lake City

1:06 pm - 9:33 pmONT Ontario-ORD Chicago O'Hare Intl

6h 27m1 stop Salt Lake City

$297Delta

Fri, Sep 4 - Sat, Sep 5

6:59 am - 12:03 pmORD Chicago O'Hare Intl-ONT Ontario

7h 04m1 stop Phoenix Sky Harbor Intl

7:11 pm - 5:03 amONT Ontario-ORD Chicago O'Hare Intl

7h 52m1 stop Phoenix Sky Harbor Intl

$297American Airlines

Thu, Sep 3 - Sun, Oct 4

7:00 am - 11:43 amORD Chicago O'Hare Intl-ONT Ontario

6h 43m1 stop Dallas/Fort Worth

12:59 pm - 11:30 pmONT Ontario-ORD Chicago O'Hare Intl

8h 31m1 stop Phoenix Sky Harbor Intl

$297American Airlines

Thu, Sep 3 - Tue, Sep 8

2:22 pm - 8:24 pmORD Chicago O'Hare Intl-ONT Ontario

8h 02m1 stop Portland

8:17 am - 8:15 pmONT Ontario-ORD Chicago O'Hare Intl

9h 58m1 stop Dallas/Fort Worth

$383Multiple Airlines

Sat, Sep 5 - Sun, Sep 6

2:22 pm - 8:24 pmORD Chicago O'Hare Intl-ONT Ontario

8h 02m1 stop Portland

2:30 pm - 5:38 amONT Ontario-ORD Chicago O'Hare Intl

13h 08m1 stop Las Vegas Harry Reid Intl

$387Multiple Airlines

Sat, Sep 5 - Wed, Sep 9

Cheap direct flights

Enter your travel dates to find the best prices.

8:46 pm - 11:19 pmORD Chicago O'Hare Intl-ONT Ontario

4h 33mnonstop

6:00 am - 12:15 pmONT Ontario-ORD Chicago O'Hare Intl

4h 15mnonstop

$258American Airlines

Wed, Jan 20 - Sun, Jan 24

8:46 pm - 11:19 pmORD Chicago O'Hare Intl-ONT Ontario

4h 33mnonstop

6:00 am - 12:15 pmONT Ontario-ORD Chicago O'Hare Intl

4h 15mnonstop

$277American Airlines

Wed, Jan 20 - Mon, Jan 25

6:15 pm - 8:48 pmORD Chicago O'Hare Intl-ONT Ontario

4h 33mnonstop

6:00 am - 12:15 pmONT Ontario-ORD Chicago O'Hare Intl

4h 15mnonstop

$277American Airlines

Wed, Feb 24 - Sun, Feb 28

8:46 pm - 11:19 pmORD Chicago O'Hare Intl-ONT Ontario

4h 33mnonstop

6:00 am - 12:15 pmONT Ontario-ORD Chicago O'Hare Intl

4h 15mnonstop

$277American Airlines

Wed, Jan 20 - Sun, Jan 24

6:15 pm - 8:48 pmORD Chicago O'Hare Intl-ONT Ontario

4h 33mnonstop

6:00 am - 12:15 pmONT Ontario-ORD Chicago O'Hare Intl

4h 15mnonstop

$277American Airlines

Wed, Jan 20 - Sun, Jan 24

6:15 pm - 8:48 pmORD Chicago O'Hare Intl-ONT Ontario

4h 33mnonstop

6:00 am - 12:15 pmONT Ontario-ORD Chicago O'Hare Intl

4h 15mnonstop

$298American Airlines

Mon, Jan 11 - Fri, Jan 15

8:20 pm - 10:49 pmORD Chicago O'Hare Intl-ONT Ontario

4h 29mnonstop

7:00 am - 1:10 pmONT Ontario-ORD Chicago O'Hare Intl

4h 10mnonstop

$307United Airlines

Mon, Sep 28 - Tue, Sep 29

8:33 pm - 10:59 pmORD Chicago O'Hare Intl-ONT Ontario

4h 26mnonstop

7:00 am - 1:10 pmONT Ontario-ORD Chicago O'Hare Intl

4h 10mnonstop

$307United Airlines

Tue, Sep 22 - Tue, Sep 29

7:59 pm - 10:41 pmORD Chicago O'Hare Intl-ONT Ontario

4h 42mnonstop

11:52 pm - 5:46 amONT Ontario-ORD Chicago O'Hare Intl

3h 54mnonstop

$307United Airlines

Thu, Dec 24 - Wed, Dec 30

4:15 pm - 6:44 pmORD Chicago O'Hare Intl-ONT Ontario

4h 29mnonstop

11:52 pm - 5:46 amONT Ontario-ORD Chicago O'Hare Intl

3h 54mnonstop

$314United Airlines

Sat, Dec 12 - Sat, Dec 19

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Frontier flights from Wisconsin to Ontario

Our best Frontier deals on Wisconsin to Ontario flight tickets

Frontier

Sep 30

MSP7:00 amMinneapolis St Paul

18h 47m

1 stop

ONT11:47 pmOntario

Oct 21

ONT11:52 amOntario

10h 14m

1 stop

MSP12:06 amMinneapolis St Paul

$140

Frontier

Oct 20

MSP2:36 pmMinneapolis St Paul

11h 14m

1 stop

ONT11:50 pmOntario

Oct 24

ONT11:52 amOntario

10h 14m

1 stop

MSP12:06 amMinneapolis St Paul

$180

Frontier

Oct 20

MSP2:36 pmMinneapolis St Paul

11h 14m

1 stop

ONT11:50 pmOntario

Oct 24

ONT11:52 amOntario

10h 14m

1 stop

MSP12:06 amMinneapolis St Paul

$182

Southwest flights from Wisconsin to Ontario

Our best Southwest deals on Wisconsin to Ontario flight tickets

Southwest

Oct 2

MKE6:30 pmMilwaukee-Mitchell

7h 20m

2 stops

ONT11:50 pmOntario

Oct 3

ONT3:10 pmOntario

7h 00m

1 stop

MKE12:10 amMilwaukee-Mitchell

$358

Southwest

Oct 30

MKE6:30 pmMilwaukee-Mitchell

7h 25m

2 stops

ONT11:55 pmOntario

Nov 2

ONT8:35 amOntario

6h 55m

2 stops

MKE5:30 pmMilwaukee-Mitchell

$363

Southwest

Oct 6

MKE4:00 pmMilwaukee-Mitchell

7h 45m

2 stops

ONT9:45 pmOntario

Oct 8

ONT1:30 pmOntario

7h 20m

2 stops

MKE10:50 pmMilwaukee-Mitchell

$439

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MinneapolisOntario

MSP Minneapolis St Paul - ONT Ontario

MSPONT

Minneapolis St Paul

Sat 11/7

7:00 am-11:51 pm

1 stop18h 51m

Ontario

Tue 11/10

11:52 am-12:04 am

1 stop10h 12m

$140

MinneapolisOntario

MSP Minneapolis St Paul - ONT Ontario

MSPONT

Minneapolis St Paul

Wed 9/30

7:00 am-11:47 pm

1 stop18h 47m

Ontario

Wed 10/7

6:15 am-12:08 am

1 stop15h 53m

$140

ChicagoOntario

ORD Chicago O'Hare Intl - ONT Ontario

ORDONT

Chicago O'Hare Intl

Thu 10/1

8:20 pm-10:49 pm

Nonstop4h 29m

Ontario

Mon 10/5

1:52 pm-12:55 am

1 stop9h 03m

$249

Quickest round-trip

ChicagoOntario

ORD Chicago O'Hare Intl - ONT Ontario

ORDONT

Chicago O'Hare Intl

Wed 1/20

8:46 pm-11:19 pm

Nonstop4h 33m

Ontario

Sun 1/24

6:00 am-12:15 pm

Nonstop4h 15m

$258

ChicagoOntario

ORD Chicago O'Hare Intl - ONT Ontario

ORDONT

Chicago O'Hare Intl

Wed 12/16

7:18 pm-11:58 pm

1 stop6h 40m

Ontario

Thu 12/24

7:05 am-5:59 pm

1 stop8h 54m

$259

ChicagoOntario

ORD Chicago O'Hare Intl - ONT Ontario

ORDONT

Chicago O'Hare Intl

Thu 11/12

5:30 am-11:08 am

1 stop7h 38m

Ontario

Sat 11/14

1:15 pm-9:47 pm

1 stop6h 32m

$259

ChicagoOntario

ORD Chicago O'Hare Intl - ONT Ontario

ORDONT

Chicago O'Hare Intl

Tue 9/15

8:33 pm-10:59 pm

Nonstop4h 26m

Ontario

Sat 9/19

1:56 pm-12:59 am

1 stop9h 03m

$268

ChicagoOntario

ORD Chicago O'Hare Intl - ONT Ontario

ORDONT

Chicago O'Hare Intl

Wed 1/20

8:46 pm-11:19 pm

Nonstop4h 33m

Ontario

Sun 1/24

1:24 pm-9:49 pm

1 stop6h 25m

$268

ChicagoOntario

ORD Chicago O'Hare Intl - ONT Ontario

ORDONT

Chicago O'Hare Intl

Wed 9/16

6:30 am-10:30 am

1 stop6h 00m

Ontario

Fri 9/18

7:59 pm-6:20 am

1 stop8h 21m

$289

ChicagoOntario

ORD Chicago O'Hare Intl - ONT Ontario

ORDONT

Chicago O'Hare Intl

Fri 10/9

5:46 pm-10:17 am

1 stop18h 31m

Ontario

Sun 10/11

6:15 am-12:24 am

1 stop16h 09m

$320

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Wisconsin to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Ontario?

In general, January is the cheapest month to fly from Wisconsin to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $341. If you aren’t able to travel during the month of January, then book flights to Ontario from Wisconsin during December instead. Flights to Ontario in December, while not as cheap as those in January, still average around $419.

Can stopping save me money on Wisconsin to Ontario flights?

You could potentially save up to 24% on your flight if you consider stops on a Wisconsin to Ontario flight.

Cheap Wisconsin to Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Wisconsin to Ontario

Best Price Found	$72
Fastest flight time	4h 26m
Direct flights	Every day
Airports in Ontario	1 airport

The best one-way flight to Ontario from Wisconsin in the past 72 hours is $72. The best round-trip flight deal from Wisconsin to Ontario found on momondo in the last 72 hours is $140.

The fastest flight from Wisconsin to Ontario takes 4h 26m

Direct flights go from Wisconsin to Ontario every day.

There is 1 airport in Ontario. From Wisconsin there are direct flights to Ontario (ONT).

Search flight deals

Frequently asked questions about flying from Wisconsin to Ontario

When did momondo last update prices for flights from Wisconsin to Ontario Airport?
Prices for flights from Wisconsin to Ontario Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Wisconsin to Ontario Airport?
The number of operators available for flights from Wisconsin to Ontario Airport is 5 as of September 2026.
How old do you have to be to fly from Wisconsin to Ontario Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Wisconsin to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Wisconsin to Ontario

Compare and see reviews for airlines that fly from Wisconsin to Ontario with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $288	Free Cancellation	Rating 7.4 10,157 reviews	Search United Airlines flights
American Airlines	PriceFrom $333	Free Cancellation	Rating 7.1 12,023 reviews	Search American Airlines flights
Southwest	PriceFrom $334	Free Cancellation	Rating 8.0 4,191 reviews	Search Southwest flights
Delta	PriceFrom $360	Free Cancellation	Rating 7.8 8,538 reviews	Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Wisconsin to Ontario?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Wisconsin to Ontario. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Wisconsin to Ontario with flexible booking policies on momondo?

Yes. All flights to Ontario from Wisconsin on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Wisconsin to Ontario?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Wisconsin to Ontario.

I’m not ready to book a flight from Wisconsin to Ontario right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Ontario, momondo offers a useful price alert feature which will track prices for flights to Ontario from Wisconsin and alert you when they change.

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Thu 10/1

Thu 10/8

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Nearby airports

Airlines

Cabin classes

Other United States destinations

Other flights from Wisconsin

Complete your trip

Feeling lucky

Cheap flights from Wisconsin to Los Angeles from $72

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Wisconsin to Los Angeles departing on 10/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Wisconsin to Los Angeles

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Frontier flights from Wisconsin to Ontario

Our best Frontier deals on Wisconsin to Ontario flight tickets

Southwest flights from Wisconsin to Ontario

Our best Southwest deals on Wisconsin to Ontario flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Wisconsin to Ontario that are best for you.

See travel insights to Los Angeles from

How to get the cheapest flight ticket from Wisconsin to Ontario

What is the cheapest month to fly to Ontario?

Can stopping save me money on Wisconsin to Ontario flights?

What is the cheapest airline that flies from Wisconsin to Ontario?

What airlines fly to Ontario?

How many flights depart from Wisconsin to Ontario on average per week?

How long does it take to fly to Ontario?

Cheap Wisconsin to Ontario flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Airports in Ontario

Frequently asked questions about flying from Wisconsin to Ontario

Best airlines flying from Wisconsin to Ontario

Compare and see reviews for airlines that fly from Wisconsin to Ontario with momondo

Why use momondo?

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California

Fly your favorite airline to Los Angeles

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Los Angeles

List of cabin classes available on flights landing in Los Angeles. Availability may vary depending on flight origin and airline.

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Wisconsin

According to popular flight searches on momondo this year

Complete your trip to Los Angeles

Explore popular destinations other users love

According to popular flight searches on momondo this year