What airlines fly to Ontario?

Spirit Airlines, Delta and American Airlines are the top three most popular airlines that fly to Ontario from Michigan according to our data. Spirit Airlines is the first choice among our users, with 41% 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.

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

17 flights are operational weekly from Michigan to Ontario as of November 2025. The most popular departure day for this route is Mon, with 29% of flights per week taking off on this day.

How long does it take to fly to Ontario?

Average flight duration from Michigan to Ontario depends on which airport you fly into and out of. Flying from Grand Rapids to Los Angeles is 4h 51m on average, while flying from Detroit to Los Angeles is 5h 01m on average. Los Angeles is the most popular airport in Ontario.

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

Frontier is the most popular carrier operating from Michigan to Ontario

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

Prices for flights from Michigan to Ontario Airport refresh daily.

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

The number of operators available for flights from Michigan to Ontario Airport is 5 as of November 2025.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Michigan 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.

$62 Cheap Flights from Michigan to Ontario in 2025/26

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

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

Find the cheapest flights from Michigan 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 - 2:25 pmORD-ONT

9h 25m1 stop

3:20 pm - 12:12 amONT-ORD

6h 52m1 stop

$130Frontier

Find Deal

Mon, Dec 8 - Mon, Dec 15

8:05 am - 6:35 pmMDW-ONT

12h 30m1 stop

3:20 pm - 11:08 amONT-MDW

17h 48m1 stop

$130Frontier

Find Deal

Thu, Dec 11 - Sat, Dec 13

12:59 pm - 9:17 pmGRR-ONT

11h 18m1 stop

7:30 am - 1:40 pmONT-GRR

51h 10m2 stops

$268Multiple Airlines

Find Deal

Wed, Dec 31 - Wed, Jan 7

12:59 pm - 5:15 pmGRR-ONT

7h 16m1 stop

7:30 am - 10:51 amONT-GRR

24h 21m2 stops

$282Multiple Airlines

Find Deal

Wed, Dec 31 - Sat, Jan 10

6:00 am - 11:54 amSBN-ONT

8h 54m1 stop

1:04 pm - 11:19 pmONT-SBN

7h 15m1 stop

$289Delta

Find Deal

Wed, Jan 7 - Wed, Jan 14

4:56 pm - 11:04 pmSBN-ONT

9h 08m1 stop

6:40 am - 8:52 pmONT-SBN

11h 12m2 stops

$294Delta

Find Deal

Tue, Dec 9 - Sat, Dec 13

1:40 pm - 10:13 pmFNT-ONT

11h 33m2 stops

11:59 pm - 1:11 pmONT-FNT

10h 12m2 stops

$299American Airlines

Find Deal

Thu, Jan 8 - Mon, Jan 12

7:11 am - 4:01 pmSBN-ONT

11h 50m2 stops

12:46 pm - 10:04 pmONT-SBN

6h 18m1 stop

$359American Airlines

Find Deal

Tue, Dec 2 - Sat, Dec 6

4:45 pm - 10:26 pmMBS-ONT

8h 41m1 stop

7:00 am - 4:12 pmONT-MBS

6h 12m1 stop

$379United Airlines

Find Deal

Sat, May 2 - Wed, May 6

3:15 pm - 10:49 pmSBN-ONT

10h 34m2 stops

11:59 pm - 10:54 amONT-SBN

7h 55m1 stop

$384United Airlines

Find Deal

Tue, Dec 16 - Sat, Dec 20

Frontier flights from Michigan to Ontario

Our best Frontier deals on Michigan to Ontario flight tickets

Frontier

Dec 11

MDW8:05 amChicago Midway

12h 30m

1 stop

ONT6:35 pmOntario

Dec 13

ONT3:20 pmOntario

17h 48m

1 stop

MDW11:08 amChicago Midway

$130

Find similar

Frontier

Jan 15

DTW12:20 pmDetroit Metropolitan Wayne County

14h 43m

1 stop

ONT12:03 amOntario

Jan 18

ONT6:00 amOntario

26h 24m

1 stop

DTW11:24 amDetroit Metropolitan Wayne County

$134

Find similar

Frontier

Nov 25

DTW10:29 pmDetroit Metropolitan Wayne County

18h 57m

1 stop

ONT2:26 pmOntario

Dec 4

ONT12:04 pmOntario

25h 15m

1 stop

DTW4:19 pmDetroit Metropolitan Wayne County

$137

Find similar

Delta flights from Michigan to Ontario

Our best Delta deals on Michigan to Ontario flight tickets

Delta

Jan 7

SBN6:00 amSouth Bend/Michiana

8h 54m

1 stop

ONT11:54 amOntario

Jan 14

ONT1:04 pmOntario

7h 15m

1 stop

SBN11:19 pmSouth Bend/Michiana

$289

Find similar

Delta

Dec 9

SBN4:56 pmSouth Bend/Michiana

9h 08m

1 stop

ONT11:04 pmOntario

Dec 13

ONT6:40 amOntario

11h 12m

2 stops

SBN8:52 pmSouth Bend/Michiana

$294

Find similar

Delta

Dec 9

SBN7:05 amSouth Bend/Michiana

13h 02m

2 stops

ONT5:07 pmOntario

Dec 13

ONT6:40 amOntario

11h 12m

2 stops

SBN8:52 pmSouth Bend/Michiana

$299

Find similar

Fly from

Fly to

Route

Depart

Return

Price

ChicagoOntario

ORD - ONT

ORDONT

Chicago O'Hare Intl

Mon 12/8

7:00 am-2:25 pm

1 stop9h 25m

Ontario

Mon 12/15

3:20 pm-12:12 am

1 stop6h 52m

$130

ChicagoOntario

MDW - ONT

MDWONT

Chicago Midway

Thu 12/11

8:05 am-6:35 pm

1 stop12h 30m

Ontario

Sat 12/13

3:20 pm-11:08 am

1 stop17h 48m

$130

Grand RapidsOntario

GRR - ONT

GRRONT

Grand Rapids Gerald R. Ford Intl

Wed 12/31

12:59 pm-9:17 pm

1 stop11h 18m

Ontario

Wed 1/7

7:30 am-1:40 pm

2 stops51h 10m

$268

Grand RapidsOntario

GRR - ONT

GRRONT

Grand Rapids Gerald R. Ford Intl

Wed 12/31

12:59 pm-5:15 pm

1 stop7h 16m

Ontario

Sat 1/10

7:30 am-10:51 am

2 stops24h 21m

$282

South BendOntario

SBN - ONT

SBNONT

South Bend/Michiana

Wed 1/7

6:00 am-11:54 am

1 stop8h 54m

Ontario

Wed 1/14

1:04 pm-11:19 pm

1 stop7h 15m

$289

South BendOntario

SBN - ONT

SBNONT

South Bend/Michiana

Tue 12/9

4:56 pm-11:04 pm

1 stop9h 08m

Ontario

Sat 12/13

6:40 am-8:52 pm

2 stops11h 12m

$294

FlintOntario

FNT - ONT

FNTONT

Flint Bishop

Thu 1/8

1:40 pm-10:13 pm

2 stops11h 33m

Ontario

Mon 1/12

11:59 pm-1:11 pm

2 stops10h 12m

$299

South BendOntario

SBN - ONT

SBNONT

South Bend/Michiana

Tue 12/2

7:11 am-4:01 pm

2 stops11h 50m

Ontario

Sat 12/6

12:46 pm-10:04 pm

1 stop6h 18m

$359

Bay CityOntario

MBS - ONT

MBSONT

Bay City MBS Intl

Sat 5/2

4:45 pm-10:26 pm

1 stop8h 41m

Ontario

Wed 5/6

7:00 am-4:12 pm

1 stop6h 12m

$379

South BendOntario

SBN - ONT

SBNONT

South Bend/Michiana

Tue 12/16

3:15 pm-10:49 pm

2 stops10h 34m

Ontario

Sat 12/20

11:59 pm-10:54 am

1 stop7h 55m

$384

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 Michigan 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, September is the cheapest month to fly from Michigan to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $198. If you aren’t able to travel during the month of September, then book flights to Ontario from Michigan during February instead. Flights to Ontario in February, while not as cheap as those in September, still average around $281.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Sunday when prices can be found for as low as $248. This is often the case because there is less demand to fly during this day of the week. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Michigan to Ontario for around $406.

What is the cheapest time of day to depart on your flight to Ontario?

In the evening is the cheapest time of day to fly from Michigan to Ontario when you can find flight prices for as low as $297. Flying to Ontario in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $469 on average. Flights to Ontario from Michigan in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Ontario?

You are more likely to see cheaper flights to Ontario from Michigan when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $445 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Michigan for as low as $322 on momondo.

Can stopping save me money on Michigan to Ontario flights?

You could potentially save up to 55% on your flight if you consider stops on a Michigan to Ontario flight.

Cheap Michigan to Ontario flight deals and tips

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

Fastest flight time	4h 15m
Direct flights	Every day
Airports in Ontario	1 airport

The fastest flight from Michigan to Ontario takes 4h 15m

Direct flights go from Michigan to Ontario every day.

There is 1 airport near Ontario: Ontario (ONT)

Search flight deals

When did momondo last update prices for flights from Michigan to Ontario Airport?
Prices for flights from Michigan to Ontario Airport refresh daily.
How many operators does momondo search for flights from Michigan to Ontario Airport?
The number of operators available for flights from Michigan to Ontario Airport is 5 as of November 2025.
How old do you have to be to fly from Michigan to Ontario Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Michigan 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 Michigan to Ontario

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $120	Free Cancellation	Rating 5.8 3,114 reviews	Search Frontier flights
American Airlines	PriceFrom $269	Free Cancellation	Rating 7.2 11,049 reviews	Search American Airlines flights
Delta	PriceFrom $283	Free Cancellation	Rating 7.9 8,009 reviews	Search Delta flights
United Airlines	PriceFrom $317	Free Cancellation	Rating 7.4 9,015 reviews	Search United Airlines flights
Southwest	PriceFrom $324	Free Cancellation	Rating 8.0 4,235 reviews	Search Southwest flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Michigan.

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

All flight searches from Michigan to Ontario on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Michigan and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Michigan to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.