What is the cheapest airline that flies from Birmingham to Ontario?

Southwest, Delta, and United Airlines are the most popular carriers operating from Birmingham to Ontario

What airlines fly to Ontario?

American Airlines, Delta and Southwest are the top three most popular airlines that fly to Ontario from Birmingham, Alabama according to our data. American Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 6 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Birmingham Airport to Ontario Airport?

Prices for flights from Birmingham Airport to Ontario Airport refresh daily.

How many operators does momondo search for flights from Birmingham Airport to Ontario Airport?

There are 3 operators available for flights from Birmingham Airport to Ontario Airport as of November 2025.

How old do you have to be to fly from Birmingham Airport to Ontario Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Birmingham Airport to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$149 Cheap Flights from Birmingham to Ontario in 2025/26

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Find the cheapest flights from Birmingham, Alabama to Los Angeles

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

1:30 pm - 6:40 pmBHM-ONT

7h 10m1 stop

8:40 am - 4:15 pmONT-BHM

5h 35m1 stop

$307Southwest

Find Deal

Wed, Dec 10 - Wed, Dec 17

5:01 am - 9:54 amBHM-ONT

6h 53m1 stop

9:59 am - 8:53 pmONT-BHM

8h 54m2 stops

$312American Airlines

Find Deal

Wed, Dec 10 - Wed, Dec 17

10:47 am - 6:19 pmBHM-ONT

9h 32m2 stops

9:59 am - 10:55 pmONT-BHM

10h 56m2 stops

$317American Airlines

Find Deal

Wed, Dec 10 - Wed, Dec 17

6:07 pm - 11:04 pmBHM-ONT

6h 57m1 stop

10:25 pm - 8:01 amONT-BHM

7h 36m1 stop

$328Delta

Find Deal

Mon, Nov 24 - Wed, Dec 3

6:15 am - 10:52 amBHM-ONT

6h 37m1 stop

10:25 pm - 8:01 amONT-BHM

7h 36m1 stop

$329Delta

Find Deal

Thu, Nov 27 - Wed, Dec 3

4:01 pm - 10:09 pmBHM-ONT

8h 08m1 stop

10:59 pm - 8:19 amONT-BHM

7h 20m1 stop

$377Delta

Find Deal

Tue, Apr 14 - Wed, Apr 15

4:22 pm - 11:04 pmBHM-ONT

8h 42m1 stop

10:25 pm - 8:01 amONT-BHM

7h 36m1 stop

$379Delta

Find Deal

Thu, Dec 11 - Mon, Dec 15

5:00 pm - 9:49 pmBHM-ONT

6h 49m1 stop

1:24 pm - 9:31 pmONT-BHM

6h 07m1 stop

$397United Airlines

Find Deal

Sat, Dec 13 - Sat, Jan 10

8:00 am - 5:34 pmBHM-ONT

11h 34m2 stops

6:00 am - 4:19 pmONT-BHM

8h 19m1 stop

$424United Airlines

Find Deal

Thu, Nov 27 - Wed, Dec 3

5:05 am - 12:30 pmBHM-ONT

9h 25m2 stops

1:05 pm - 11:20 pmONT-BHM

8h 15m2 stops

$477Southwest

Find Deal

Fri, Dec 12 - Mon, Jan 5

United Airlines flights from Birmingham, Alabama to Ontario

Our best United Airlines deals on Birmingham, Alabama to Ontario flight tickets

United Airlines

Dec 13

BHM5:00 pmBirmingham

6h 49m

1 stop

ONT9:49 pmOntario

Jan 10

ONT1:24 pmOntario

6h 07m

1 stop

BHM9:31 pmBirmingham

$397

Find similar

United Airlines

Nov 27

BHM8:00 amBirmingham

11h 34m

2 stops

ONT5:34 pmOntario

Dec 3

ONT6:00 amOntario

8h 19m

1 stop

BHM4:19 pmBirmingham

$424

Find similar

United Airlines

Dec 13

BHM5:00 pmBirmingham

6h 49m

1 stop

ONT9:49 pmOntario

Dec 16

ONT6:00 amOntario

13h 32m

2 stops

BHM9:32 pmBirmingham

$428

Find similar

Southwest flights from Birmingham, Alabama to Ontario

Our best Southwest deals on Birmingham, Alabama to Ontario flight tickets

Southwest

Dec 10

BHM1:30 pmBirmingham

7h 10m

1 stop

ONT6:40 pmOntario

Dec 17

ONT8:40 amOntario

5h 35m

1 stop

BHM4:15 pmBirmingham

$307

Find similar

Southwest

Dec 12

BHM5:05 amBirmingham

9h 25m

2 stops

ONT12:30 pmOntario

Jan 5

ONT1:05 pmOntario

8h 15m

2 stops

BHM11:20 pmBirmingham

$477

Find similar

Southwest

Dec 21

BHM5:00 amBirmingham

7h 40m

1 stop

ONT10:40 amOntario

Dec 27

ONT4:30 pmOntario

6h 25m

1 stop

BHM12:55 amBirmingham

$487

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Birmingham, Alabama to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BirminghamOntario

BHM - ONT

BHMONT

Birmingham

Wed 12/10

1:30 pm-6:40 pm

1 stop7h 10m

Ontario

Wed 12/17

8:40 am-4:15 pm

1 stop5h 35m

$307

BirminghamOntario

BHM - ONT

BHMONT

Birmingham

Wed 12/10

5:01 am-9:54 am

1 stop6h 53m

Ontario

Wed 12/17

9:59 am-8:53 pm

2 stops8h 54m

$312

BirminghamOntario

BHM - ONT

BHMONT

Birmingham

Wed 12/10

10:47 am-6:19 pm

2 stops9h 32m

Ontario

Wed 12/17

9:59 am-10:55 pm

2 stops10h 56m

$317

BirminghamOntario

BHM - ONT

BHMONT

Birmingham

Mon 11/24

6:07 pm-11:04 pm

1 stop6h 57m

Ontario

Wed 12/3

10:25 pm-8:01 am

1 stop7h 36m

$328

BirminghamOntario

BHM - ONT

BHMONT

Birmingham

Thu 11/27

6:15 am-10:52 am

1 stop6h 37m

Ontario

Wed 12/3

10:25 pm-8:01 am

1 stop7h 36m

$329

BirminghamOntario

BHM - ONT

BHMONT

Birmingham

Tue 4/14

4:01 pm-10:09 pm

1 stop8h 08m

Ontario

Wed 4/15

10:59 pm-8:19 am

1 stop7h 20m

$377

BirminghamOntario

BHM - ONT

BHMONT

Birmingham

Thu 12/11

4:22 pm-11:04 pm

1 stop8h 42m

Ontario

Mon 12/15

10:25 pm-8:01 am

1 stop7h 36m

$379

BirminghamOntario

BHM - ONT

BHMONT

Birmingham

Sat 12/13

5:00 pm-9:49 pm

1 stop6h 49m

Ontario

Sat 1/10

1:24 pm-9:31 pm

1 stop6h 07m

$397

BirminghamOntario

BHM - ONT

BHMONT

Birmingham

Thu 11/27

8:00 am-5:34 pm

2 stops11h 34m

Ontario

Wed 12/3

6:00 am-4:19 pm

1 stop8h 19m

$424

BirminghamOntario

BHM - ONT

BHMONT

Birmingham

Fri 12/12

5:05 am-12:30 pm

2 stops9h 25m

Ontario

Mon 1/5

1:05 pm-11:20 pm

2 stops8h 15m

$477

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Birmingham, Alabama to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Ontario?

In general, September is the cheapest month to fly from Birmingham, Alabama to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $306. If you aren’t able to travel during the month of September, then book flights to Ontario from Birmingham, Alabama during February instead. Flights to Ontario in February, while not as cheap as those in September, still average around $396.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Tuesday when prices can be found for as low as $407. This is often the case because there is less demand to fly during this day of the week. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Birmingham, Alabama to Ontario for around $564.

What is the cheapest time of day to depart on your flight to Ontario?

In the afternoon is the cheapest time of day to fly from Birmingham, Alabama to Ontario when you can find flight prices for as low as $471. Flying to Ontario in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $493 on average. Flights to Ontario from Birmingham, Alabama in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

How have Birmingham, Alabama to Ontario flight prices changed over time?

As of November 2025, prices for Birmingham, Alabama to Ontario flights are approximately 4% cheaper when compared to flights at the same time last year.

When to book flights from Birmingham, Alabama to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Birmingham, Alabama to Ontario according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Birmingham, Alabama to Ontario (BHM to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Birmingham, Alabama to Ontario

Direct flights	None

There are no direct flights from Birmingham, Alabama to Ontario. There are no popular flight routes from Birmingham, Alabama to Ontario.

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How far is Birmingham to Ontario by plane?
Birmingham and Ontario are 1763.8 mi apart from one another. A reasonable flight in good conditions will take 6h 29m.
When did momondo last update prices for flights from Birmingham Airport to Ontario Airport?
Prices for flights from Birmingham Airport to Ontario Airport refresh daily.
How many operators does momondo search for flights from Birmingham Airport to Ontario Airport?
There are 3 operators available for flights from Birmingham Airport to Ontario Airport as of November 2025.
How old do you have to be to fly from Birmingham Airport to Ontario Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Birmingham Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Birmingham, Alabama to Ontario?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Birmingham, Alabama to Ontario is American Airlines (47% of total bookings). The next most popular airlines are Southwest (40%) and Delta (12%).

Best airlines flying from Birmingham, Alabama to Ontario

Compare and see reviews for airlines that fly from Birmingham, Alabama to Ontario with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $286	Free Cancellation	Rating 7.9 8,002 reviews	Search Delta flights
American Airlines	PriceFrom $361	Free Cancellation	Rating 7.2 11,038 reviews	Search American Airlines flights
Southwest	PriceFrom $366	Free Cancellation	Rating 8.0 4,238 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Birmingham to Ontario?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Birmingham.

Can I find flights from Birmingham to Ontario with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Ontario from Birmingham with this policy.

How can momondo help me find flights from Birmingham to Ontario?

Once all potential Birmingham to Ontario flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Birmingham to Ontario right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Birmingham to Ontario flights. All you need is a valid email address and we will do the rest; it is that quick and easy.