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$299+ Cheap flights from Bay City to Ontario (MBS - ONT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
MBS — ONT
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
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 July 30, 2025.

Round-trip from

$299
(Delta)

Popular in

February

Cheapest in

January

Average price

$663
From Bay City MBS Intl to Ontario
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High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 30, 2025.

This Delta deal was found by Cheapflights users on 7/30. 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 9/153:33 pmMBS - ONT
2 stops11h 09mDelta
Mon 9/2910:00 pmONT - MBS
2 stops9h 54mDelta
Deal found 7/30$299
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Fri 9/124:43 pmMBS - ONT
1 stop8h 47mUnited Airlines
Sun 9/287:02 amONT - MBS
1 stop6h 06mUnited Airlines
Deal found 7/30$379

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 July 30, 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

Mon 9/15

3:33 pm-11:42 pm

2 stops11h 09m

Ontario

Mon 9/29

10:00 pm-10:54 am

2 stops9h 54m

$299

Bay CityOntario

MBS - ONT

MBSONT

Bay City MBS Intl

Fri 9/12

4:43 pm-10:30 pm

1 stop8h 47m

Ontario

Tue 9/30

7:02 am-4:08 pm

1 stop6h 06m

$379

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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 July 30, 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
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

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
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

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
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

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.

  • 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 $299. Another option worth looking into is United Airlines, starting at $379 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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Alternative routes for Bay City to Ontario

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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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$298Average$398FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$308Average$503FlexibilityNo cancel feeOn-time69%

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