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$160+ Cheap flights from Flint, MI to Ontario (FNT - 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
FNT — ONT
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Flint to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Flint (FNT) 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 August 14, 2025.

Round-trip from

$379
(United Airlines)

One-way from

$160
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$428
From Flint Bishop to Ontario
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One-way flight from Flint Bishop to Ontario
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Highest demand for flights based on searches. 8% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Flint to Ontario

Cheapest flights from Flint to Ontario
Explore the most affordable flight options available from Flint to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This United Airlines deal was found by Cheapflights users on 8/14. 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 9/264:43 pmFNT - ONT
1 stop8h 47mUnited Airlines
Sat 9/277:02 amONT - FNT
1 stop6h 06mUnited Airlines
Deal found 8/14$379
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Tue 9/234:43 pmFNT - ONT
1 stop8h 47mUnited Airlines
Sat 9/275:05 amONT - FNT
2 stops8h 03mUnited Airlines
Deal found 8/14$384
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Thu 9/254:43 pmFNT - ONT
1 stop8h 47mUnited Airlines
Mon 9/297:02 amONT - FNT
1 stop6h 05mUnited Airlines
Deal found 8/14$426
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Thu 8/284:43 pmFNT - ONT
1 stop8h 47mUnited Airlines
Mon 9/17:00 amONT - FNT
1 stop6h 08mUnited Airlines
Deal found 8/13$429
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Mon 9/294:42 pmFNT - ONT
1 stop8h 48mUnited Airlines
Tue 9/307:02 amONT - FNT
1 stop6h 05mUnited Airlines
Deal found 8/13$447
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Wed 9/104:43 pmFNT - ONT
1 stop8h 47mUnited Airlines
Wed 9/171:15 pmONT - FNT
2 stops21h 10mUnited Airlines
Deal found 8/13$457
This United Airlines deal was found by Cheapflights users on 8/13. 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 8/304:43 pmFNT - ONT
1 stop8h 47mUnited Airlines
Fri 9/56:50 pmONT - FNT
2 stops18h 18mUnited Airlines
Deal found 8/13$459
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Thu 9/184:43 pmFNT - ONT
1 stop8h 47mUnited Airlines
Wed 9/247:00 amONT - FNT
1 stop6h 08mUnited Airlines
Deal found 8/13$474

Cheapflights Fare Finder

 
Customize your flight search to find flights from Flint 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 August 14, 2025.
Use the filters below to find and compare flights from Flint to Ontario that are best for you.

Fly from

Flint

Fly to

Ontario

Route

Depart

Return

Price

FlintOntario

FNT - ONT

FNTONT

Flint Bishop

Wed 9/24

4:43 pm-10:30 pm

1 stop8h 47m

Ontario

Tue 9/30

7:02 am-4:07 pm

1 stop6h 05m

$379

FlintOntario

FNT - ONT

FNTONT

Flint Bishop

Thu 9/25

4:43 pm-10:30 pm

1 stop8h 47m

Ontario

Tue 9/30

7:02 am-4:07 pm

1 stop6h 05m

$379

FlintOntario

FNT - ONT

FNTONT

Flint Bishop

Sat 9/27

2:05 pm-6:06 pm

1 stop7h 01m

Ontario

Tue 9/30

7:02 am-4:07 pm

1 stop6h 05m

$379

FlintOntario

FNT - ONT

FNTONT

Flint Bishop

Fri 9/26

4:43 pm-10:30 pm

1 stop8h 47m

Ontario

Sun 9/28

7:02 am-4:07 pm

1 stop6h 05m

$379

FlintOntario

FNT - ONT

FNTONT

Flint Bishop

Tue 9/23

4:43 pm-10:30 pm

1 stop8h 47m

Ontario

Sat 9/27

7:02 am-4:08 pm

1 stop6h 06m

$379

FlintOntario

FNT - ONT

FNTONT

Flint Bishop

Tue 9/23

4:43 pm-10:30 pm

1 stop8h 47m

Ontario

Tue 9/30

7:02 am-4:07 pm

1 stop6h 05m

$379

FlintOntario

FNT - ONT

FNTONT

Flint Bishop

Wed 9/24

4:43 pm-10:30 pm

1 stop8h 47m

Ontario

Sat 9/27

7:02 am-4:08 pm

1 stop6h 06m

$379

FlintOntario

FNT - ONT

FNTONT

Flint Bishop

Fri 9/26

4:43 pm-10:30 pm

1 stop8h 47m

Ontario

Sat 9/27

7:02 am-4:08 pm

1 stop6h 06m

$379

FlintOntario

FNT - ONT

FNTONT

Flint Bishop

Sat 9/27

2:05 pm-6:06 pm

1 stop7h 01m

Ontario

Sat 10/4

7:02 am-4:08 pm

1 stop6h 06m

$379

FlintOntario

FNT - ONT

FNTONT

Flint Bishop

Thu 9/25

4:43 pm-10:30 pm

1 stop8h 47m

Ontario

Sat 9/27

7:02 am-4:08 pm

1 stop6h 06m

$379

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 18 results
1
2

Best time to book a flight from Flint to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Flint 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 Flint to Ontario

What is the cheapest month to book a flight from Flint, Michigan to Ontario?

Currently, August is the cheapest month in which you can book a flight from Flint, Michigan to Ontario (average of $246). Flying from Flint, Michigan 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.

What is the cheapest time of day to fly from FNT to ONT?

Find hourly flight availability from Flint to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

When flying from Flint, Michigan to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 56% versus a flight in the morning.

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 August 14, 2025.
Read reviews from past customers who have flown American Airlines from Flint to Ontario. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
10,000 reviews

Comfort

7.2

Entertainment

6.9

Crew

8.0

Food

6.5

Boarding

7.5

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

LHR - SAN

This was the best flight I have experienced in all the years I have been f doing this journey with BA. Flight, food and service A1. Well done BA.
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Comfort

7.2

Entertainment

6.9

Crew

8.0

Food

6.5

Boarding

7.5

Overall

7.2

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

LHR - SAN

This was the best flight I have experienced in all the years I have been f doing this journey with BA. Flight, food and service A1. Well done BA.

Related info for your journey

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

  • What is the cheapest airline to fly from Flint, Michigan to Ontario round-trip?

    Our cheapest airline available from Flint, Michigan to Ontario is American Airlines. Our recent data shows that you can find tickets from as low as $389 on this airline.

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

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

  • How can I find direct flights from Flint to Ontario?

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

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

    Yes. Cheapflights offers flight deals from Flint 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 Flint, Michigan to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Flint, Michigan to Ontario (average of $246). Flying from Flint, Michigan 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 Flint to Ontario

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Top airline flying from Flint to Ontario

Discover the top airline that operate flights from Flint 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$389Average$519FlexibilityNo cancel feeOn-time71%

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