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$144+ Cheap flights from Ontario to Birmingham, AL (ONT - BHM)

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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BHM
Apr 15 — Apr 221
Tue 4/15
Tue 4/22
1 adult, Economy
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Cheap flight deals from Ontario to Birmingham

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Birmingham (BHM). 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 April 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$377
(United Airlines)

One-way from

$144
(Delta)

Popular in

July

Cheapest in

March

Average price

$494
Provider with most accurate pricing for Ontario-Birmingham flight deals.
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Provider most trusted by Cheapflights users for Ontario-Birmingham flights.
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From Ontario to Birmingham
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One-way flight from Ontario to Birmingham
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Highest demand for flights based on searches. 6% potential increase in price ($35 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Ontario to Birmingham

Cheapest flights from Ontario to Birmingham
Explore the most affordable flight options available from Ontario to Birmingham. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 10, 2025.

This Delta deal was found by Cheapflights users on 4/8. 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 6/1010:05 pmONT - BHM
1 stop8h 19mDelta
Tue 6/174:01 pmBHM - ONT
1 stop8h 24mDelta
Deal found 4/8$287
This American Airlines deal was found by Cheapflights users on 4/8. 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 5/202:44 pmONT - BHM
1 stop6h 22mAmerican Airlines
Thu 5/227:15 pmBHM - ONT
1 stop6h 28mAmerican Airlines
Deal found 4/8$343
This Southwest deal was found by Cheapflights users on 4/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/155:45 amONT - BHM
1 stop10h 20mSouthwest
Sat 6/72:35 pmBHM - ONT
1 stop10h 40mSouthwest
Deal found 4/9$393
This United Airlines deal was found by Cheapflights users on 4/8. 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 5/76:08 amONT - BHM
1 stop8h 04mUnited Airlines
Mon 5/123:05 pmBHM - ONT
1 stop8h 55mUnited Airlines
Deal found 4/8$405
This Alaska Airlines deal was found by Cheapflights users on 4/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/26:00 amONT - BHM
2 stops14h 59mAlaska Airlines
Wed 5/149:23 amBHM - ONT
2 stops13h 06mAlaska Airlines
Deal found 4/8$657

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Birmingham 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 April 10, 2025.
Use the filters below to find and compare flights from Ontario to Birmingham that are best for you.

Fly from

Ontario

Fly to

Birmingham

Route

Depart

Return

Price

OntarioBirmingham

ONT - BHM

ONTBHM

Ontario

Tue 6/10

10:05 pm-8:24 am

1 stop8h 19m

Birmingham

Tue 6/17

4:01 pm-10:25 pm

1 stop8h 24m

$287

OntarioBirmingham

ONT - BHM

ONTBHM

Ontario

Tue 5/20

2:44 pm-11:06 pm

1 stop6h 22m

Birmingham

Thu 5/22

7:15 pm-11:43 pm

1 stop6h 28m

$343

OntarioBirmingham

ONT - BHM

ONTBHM

Ontario

Thu 5/15

5:45 am-6:05 pm

1 stop10h 20m

Birmingham

Sat 6/7

2:35 pm-11:15 pm

1 stop10h 40m

$393

OntarioBirmingham

ONT - BHM

ONTBHM

Ontario

Wed 5/7

6:08 am-4:12 pm

1 stop8h 04m

Birmingham

Mon 5/12

3:05 pm-10:00 pm

1 stop8h 55m

$405

OntarioBirmingham

ONT - BHM

ONTBHM

Ontario

Fri 5/2

6:00 am-10:59 pm

2 stops14h 59m

Birmingham

Wed 5/14

9:23 am-8:29 pm

2 stops13h 06m

$657

OntarioBirmingham

ONT - BHM

ONTBHM

Ontario

Wed 5/14

12:18 pm-9:47 pm

1 stop7h 29m

$144

OntarioBirmingham

ONT - BHM

ONTBHM

Ontario

Sat 9/20

6:04 am-4:05 pm

1 stop8h 01m

$189

OntarioBirmingham

ONT - BHM

ONTBHM

Ontario

Sat 9/20

7:10 am-10:38 pm

2 stops13h 28m

$258

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/8

Compare providers for flights from Ontario to Birmingham

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 Ontario to Birmingham in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 Ontario-Birmingham, Alabama flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Birmingham, Alabama flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Birmingham, Alabama flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Birmingham, Alabama flights, Cheapflights users trust FlightHub the most. FlightHub 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 Ontario-Birmingham, Alabama 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 Ontario to Birmingham

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

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

Currently, October is the cheapest month in which you can book a flight from Ontario to Birmingham, Alabama (average of $376). Flying from Ontario to Birmingham, Alabama in June is currently the most expensive (average of $460). 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 ONT to BHM?

Find hourly flight availability from Ontario to Birmingham. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 10, 2025.

It’s typically best to fly out from Ontario to Birmingham, Alabama at noon. Doing so could potentially save you 17% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Birmingham by month

Plan your trip to Birmingham by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Birmingham, Alabama ranges from 3.4 - 5.2 inches per month. March is typically the wettest month, when rainfall can reach 5.2 in. October is typically the driest time to visit Birmingham, Alabama when rainfall is around 3.4 in.

Temperature in Birmingham by month

Plan your trip to Birmingham by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Birmingham, Alabama, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 44.6 F).

Reviews of airlines servicing Birmingham

Get insights into the airlines that provide service to Birmingham. 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 Birmingham. Reviews last updated April 10, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from Ontario to Birmingham have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,848 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,848 reviews
Alaska Airlines
8.0
Very good
9,848 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,278 reviews
Alaska Airlines
8.0
Very good
9,848 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,907 reviews
Alaska Airlines
8.0
Very good
9,848 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,634 reviews
Alaska Airlines
8.0
Very good
9,848 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,848 reviews

Entertainment

7.1

Comfort

7.9

Crew

8.5

Food

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Ontario to Birmingham. 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 Ontario to Birmingham, Alabama round-trip?

    Cheapflights users have booked flights from Ontario to Birmingham, Alabama round-trip from $377. Other airlines that can offer you cheap pricing are Southwest, from $393, and Delta, from $417. These flights start at 22% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Ontario to Birmingham, Alabama one-way?

    $144 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on United Airlines and Alaska Airlines, with prices starting from $189 and $258, respectively.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Ontario to Birmingham, Alabama (average of $376). Flying from Ontario to Birmingham, Alabama in June is currently the most expensive (average of $460). 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

Traveling to a place near Ontario?

Book flights to Ontario if you plan to visit one of these locations
Homewood
Hoover

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Top 4 airlines flying from Ontario to Birmingham

Discover the top 4 airlines that operate flights from Ontario to Birmingham. 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 April 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$336Average$445FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$341Average$442FlexibilityNo cancel feeOn-time63%
DeltaCheapest$346Average$567FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$346Average$479FlexibilityNo cancel feeOn-time71%

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