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Ontario

$289+ Cheap flights from Mobile to Ontario (MOB - 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
MOB — ONT
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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Cheap flight deals from Mobile to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Mobile (MOB) 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

$289
(Delta)

Popular in

December

Cheapest in

August

Average price

$422
From Mobile to Ontario
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($86 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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Find flight deals from Mobile to Ontario

Cheapest flights from Mobile to Ontario
Explore the most affordable flight options available from Mobile 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 7/28. 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 8/184:41 pmMOB - ONT
1 stop7h 39mDelta
Sun 8/2410:00 pmONT - MOB
1 stop8h 32mDelta
Deal found 7/28$289
This American Airlines deal was found by Cheapflights users on 7/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/195:08 amMOB - ONT
1 stop8h 46mAmerican Airlines
Tue 12/26:10 amONT - MOB
1 stop6h 10mAmerican Airlines
Deal found 7/29$314
This United Airlines deal was found by Cheapflights users on 7/28. 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 8/1811:15 amMOB - ONT
2 stops13h 37mUnited Airlines
Sun 8/246:04 amONT - MOB
1 stop8h 07mUnited Airlines
Deal found 7/28$434

Cheapflights Fare Finder

 
Customize your flight search to find flights from Mobile 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 Mobile to Ontario that are best for you.

Fly from

Mobile

Fly to

Ontario

Route

Depart

Return

Price

MobileOntario

MOB - ONT

MOBONT

Mobile

Mon 8/18

4:41 pm-10:20 pm

1 stop7h 39m

Ontario

Sun 8/24

10:00 pm-8:32 am

1 stop8h 32m

$289

MobileOntario

MOB - ONT

MOBONT

Mobile

Thu 8/21

5:41 pm-10:14 pm

1 stop6h 33m

Ontario

Wed 8/27

12:22 pm-11:10 pm

2 stops8h 48m

$384

MobileOntario

MOB - ONT

MOBONT

Mobile

Mon 8/18

11:15 am-10:52 pm

2 stops13h 37m

Ontario

Sun 8/24

6:04 am-4:11 pm

1 stop8h 07m

$434

MobileOntario

MOB - ONT

MOBONT

Mobile

Tue 8/5

6:09 am-10:30 am

1 stop6h 21m

$459

MobileOntario

MOB - ONT

MOBONT

Mobile

Tue 8/5

9:10 am-8:54 pm

2 stops13h 44m

$464

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Best time to book a flight from Mobile to Ontario

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

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

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

Find hourly flight availability from Mobile 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 July 30, 2025.

It’s typically best to fly out from Mobile to Ontario at noon. Doing so could potentially save you 15% on the flight price compared to flying in the morning, which is usually more expensive.

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.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Mobile 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.
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

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

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

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

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

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
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Entertainment

7.9

Food

7.3

Overall

8.0

Crew

8.5

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 Mobile 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 Mobile to Ontario round-trip?

    Cheapflights users have booked flights from Mobile to Ontario round-trip from $289. Other airlines that can offer you cheap pricing are American Airlines, from $384, and United Airlines, from $434. Users have found that Delta is 35% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Mobile 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 Mobile to Ontario?

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

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Top 2 airlines flying from Mobile to Ontario

Discover the top 2 airlines that operate flights from Mobile 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
American AirlinesCheapest$288Average$468FlexibilityNo cancel feeOn-time71%
DeltaCheapest$309Average$458FlexibilityNo cancel feeOn-timeN/A

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