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$189+ Cheap flights from Bay City to Ontario (MBS - ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
MBS — ONT
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Bay City to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Bay City (MBS) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$324
(Delta)

One-way from

$189
(United Airlines)

Popular in

February

Cheapest in

January

Average price

$378
From Bay City MBS Intl to Ontario
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One-way flight from Bay City MBS Intl to Ontario
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Highest demand for flights based on searches. 2% potential increase in price ($13 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Bay City to Ontario

Cheapest flights from Bay City to Ontario
Explore the most affordable flight options available from Bay City to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/283:21 pmMBS - ONT
2 stops8h 59mDelta
Mon 11/310:00 pmONT - MBS
2 stops10h 20mDelta
Deal found 9/10$324
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/273:21 pmMBS - ONT
2 stops11h 18mDelta
Mon 11/310:00 pmONT - MBS
2 stops10h 20mDelta
Deal found 9/10$343
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/283:21 pmMBS - ONT
2 stops8h 59mDelta
Sat 11/17:05 amONT - MBS
2 stops12h 24mDelta
Deal found 9/10$349
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/273:21 pmMBS - ONT
2 stops11h 18mDelta
Sun 11/210:00 pmONT - MBS
2 stops10h 20mDelta
Deal found 9/10$368
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/14:40 pmMBS - ONT
1 stop8h 51mUnited Airlines
Sun 11/97:00 amONT - MBS
1 stop6h 05mUnited Airlines
Deal found 9/10$379
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/252:10 pmMBS - ONT
2 stops11h 42mUnited Airlines
Wed 10/297:00 amONT - MBS
1 stop6h 05mUnited Airlines
Deal found 9/10$384
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/263:21 pmMBS - ONT
2 stops10h 01mDelta
Mon 11/310:00 pmONT - MBS
2 stops10h 20mDelta
Deal found 9/10$398
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/263:21 pmMBS - ONT
2 stops10h 01mDelta
Sun 11/210:00 pmONT - MBS
2 stops10h 20mDelta
Deal found 9/10$423
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/252:10 pmMBS - ONT
1 stop6h 56mUnited Airlines
Sun 11/27:00 amONT - MBS
1 stop6h 05mUnited Airlines
Deal found 9/10$429
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/252:10 pmMBS - ONT
2 stops11h 42mUnited Airlines
Fri 10/317:00 amONT - MBS
1 stop6h 05mUnited Airlines
Deal found 9/10$435
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/22:10 pmMBS - ONT
1 stop11h 21mUnited Airlines
Sat 11/87:00 amONT - MBS
1 stop6h 05mUnited Airlines
Deal found 9/10$446
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/14:40 pmMBS - ONT
1 stop8h 51mUnited Airlines
Thu 11/61:29 pmONT - MBS
2 stops20h 54mUnited Airlines
Deal found 9/10$451

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bay City to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Bay City to Ontario that are best for you.

Fly from

Bay City

Fly to

Ontario

Route

Depart

Return

Price

Bay CityOntario

MBS - ONT

MBSONT

Bay City MBS Intl

Tue 10/28

3:21 pm-9:20 pm

2 stops8h 59m

Ontario

Sat 11/1

7:05 am-10:29 pm

2 stops12h 24m

$349

Bay CityOntario

MBS - ONT

MBSONT

Bay City MBS Intl

Wed 10/29

3:21 pm-9:20 pm

2 stops8h 59m

Ontario

Sat 11/1

7:05 am-10:29 pm

2 stops12h 24m

$349

Bay CityOntario

MBS - ONT

MBSONT

Bay City MBS Intl

Mon 10/27

3:21 pm-11:39 pm

2 stops11h 18m

Ontario

Sat 11/1

7:05 am-10:29 pm

2 stops12h 24m

$368

Bay CityOntario

MBS - ONT

MBSONT

Bay City MBS Intl

Sat 11/1

4:40 pm-10:31 pm

1 stop8h 51m

Ontario

Wed 11/5

7:00 am-4:05 pm

1 stop6h 05m

$379

Bay CityOntario

MBS - ONT

MBSONT

Bay City MBS Intl

Sat 10/25

2:10 pm-6:06 pm

1 stop6h 56m

Ontario

Thu 10/30

7:00 am-4:05 pm

1 stop6h 05m

$379

Bay CityOntario

MBS - ONT

MBSONT

Bay City MBS Intl

Sat 11/1

4:40 pm-10:31 pm

1 stop8h 51m

Ontario

Sat 11/8

7:00 am-4:05 pm

1 stop6h 05m

$379

Bay CityOntario

MBS - ONT

MBSONT

Bay City MBS Intl

Thu 10/30

4:40 pm-10:31 pm

1 stop8h 51m

Ontario

Sat 11/1

7:00 am-4:05 pm

1 stop6h 05m

$423

Bay CityOntario

MBS - ONT

MBSONT

Bay City MBS Intl

Sat 10/25

2:10 pm-6:06 pm

1 stop6h 56m

Ontario

Sun 11/2

7:00 am-4:05 pm

1 stop6h 05m

$429

Bay CityOntario

MBS - ONT

MBSONT

Bay City MBS Intl

Sat 10/25

2:10 pm-6:06 pm

1 stop6h 56m

Ontario

Fri 10/31

7:00 am-4:05 pm

1 stop6h 05m

$429

Bay CityOntario

MBS - ONT

MBSONT

Bay City MBS Intl

Wed 10/29

4:40 pm-10:31 pm

1 stop8h 51m

Ontario

Sun 11/2

7:00 am-4:05 pm

1 stop6h 05m

$429

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 17 results
1
2

Best time to book a flight from Bay City to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Bay City with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Bay City to Ontario

What is the cheapest month to book a flight from Bay City to Ontario?

Currently, August is the cheapest month in which you can book a flight from Bay City to Ontario (average of $246). Flying from Bay City to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated September 11, 2025.
See what other customers who have flown with Delta and United Airlines from Bay City to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Bay City to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Bay City to Ontario?

    Airlines like Delta and United Airlines fly from Bay City to Ontario in about 8h 51m. The time it takes to get you to your destination can typically vary by up to 08m. The distance between Bay City and Ontario is about 1903 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Bay City to Ontario round-trip?

    Flying on Delta is currently your cheapest option to Ontario, with prices starting at $298. Another option worth looking into is United Airlines, starting at $308 round trip.

  • Can I find deals for flights from Bay City to Ontario that include hotel bookings?

    Yes. In addition to deals on Bay City to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bay City to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bay City to Ontario.

  • Can I find deals for business class flights from Bay City to Ontario?

    Yes. Cheapflights offers flight deals from Bay City to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Bay City to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Bay City to Ontario (average of $246). Flying from Bay City to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 2 airlines flying from Bay City to Ontario

Discover the top 2 airlines that operate flights from Bay City to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$298Average$398FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$308Average$562FlexibilityNo cancel feeOn-time69%

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