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$298+ Cheap flights from Montgomery, AL to Ontario (MGM - 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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
MGM — ONT
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Montgomery to Ontario

Cheapest flights from Montgomery to Ontario
Explore the most affordable flight options available from Montgomery to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This American Airlines deal was found by Cheapflights users on 12/16. 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.
Thu 12/256:28 amMGM - ONT
1 stop7h 25mAmerican Airlines
Sun 12/2812:45 pmONT - MGM
1 stop8h 13mAmerican Airlines
Deal found 12/16$474
This American Airlines deal was found by Cheapflights users on 12/16. 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.
Tue 12/236:28 amMGM - ONT
1 stop7h 25mAmerican Airlines
Sun 12/282:42 pmONT - MGM
1 stop6h 16mAmerican Airlines
Deal found 12/16$558

Find flight deals from Montgomery to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Montgomery (MGM) 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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$298
(Delta)

Popular in

November

Cheapest in

October

Average price

$580
Provider with most accurate pricing for Montgomery Dannelly Field-Ontario flight deals.
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Provider most trusted by Cheapflights users for Montgomery Dannelly Field-Ontario flights.
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From Montgomery Dannelly Field to Ontario
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Montgomery 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 December 18, 2025.
Use the filters below to find and compare flights from Montgomery to Ontario that are best for you.

Fly from

Montgomery

Fly to

Ontario

Route

Depart

Return

Price

MontgomeryOntario

MGM - ONT

MGMONT

Montgomery Dannelly Field

Sat 1/10

6:00 am-11:31 am

1 stop7h 31m

Ontario

Sat 1/24

10:30 pm-9:03 am

1 stop8h 33m

$298

MontgomeryOntario

MGM - ONT

MGMONT

Montgomery Dannelly Field

Sat 1/10

6:00 am-4:05 pm

2 stops12h 05m

Ontario

Sat 1/24

3:09 pm-11:38 pm

1 stop6h 29m

$304

MontgomeryOntario

MGM - ONT

MGMONT

Montgomery Dannelly Field

Mon 6/15

4:55 pm-9:21 pm

1 stop6h 26m

Ontario

Tue 6/23

6:02 am-4:22 pm

1 stop8h 20m

$498

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Compare providers for flights from Montgomery to Ontario

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Montgomery to Ontario in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Montgomery, Alabama-Ontario flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Montgomery, Alabama-Ontario flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Montgomery, Alabama-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Montgomery, Alabama-Ontario flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Montgomery, Alabama-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Montgomery to Ontario

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

What is the cheapest month to book a flight from Montgomery, Alabama to Ontario?

Currently, August is the cheapest month in which you can book a flight from Montgomery, Alabama to Ontario (average of $134). Flying from Montgomery, Alabama to Ontario in March is currently the most expensive (average of $355). 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 MGM to ONT?

Find hourly flight availability from Montgomery 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 December 18, 2025.

When flying from Montgomery, Alabama 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 60% versus a flight in the evening.

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 December 18, 2025.
See what other customers who have flown with Delta and American Airlines from Montgomery 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
7.9
Good
8,005 reviews

Food

7.3

Boarding

8.1

Entertainment

7.9

Crew

8.5

Overall

7.9

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
7.9
Good
8,005 reviews
Delta
7.9
Good
8,005 reviews

Food

7.3

Boarding

8.1

Entertainment

7.9

Crew

8.5

Overall

7.9

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
11,054 reviews
Delta
7.9
Good
8,005 reviews

Food

7.3

Boarding

8.1

Entertainment

7.9

Crew

8.5

Overall

7.9

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 Montgomery 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 Montgomery, Alabama to Ontario?

    Airlines like Delta and American Airlines fly from Montgomery, Alabama to Ontario in about 7h 31m. The time it takes to get you to your destination can typically vary by up to 4h 34m. Montgomery, Alabama and Ontario are separated by a distance of 1800 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 Montgomery, Alabama to Ontario round-trip?

    Cheapflights users have booked flights from Montgomery, Alabama to Ontario round-trip from $320. Another airline that can offer you cheap pricing is Delta.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Montgomery 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 Montgomery, Alabama to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Montgomery, Alabama to Ontario (average of $134). Flying from Montgomery, Alabama to Ontario in March is currently the most expensive (average of $355). 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 Montgomery to Ontario

Discover the top 2 airlines that operate flights from Montgomery 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$320Average$629FlexibilityNo cancel feeOn-time71%
DeltaCheapest$382Average$536FlexibilityNo cancel feeOn-timeN/A

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