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Ontario

$164+ Cheap flights from Birmingham, AL to Ontario (BHM - 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 8/8. Fares are subject to change and may not be available on all flights or dates of travel.
BHM — ONT
Jul 29 — Aug 51
Wed 7/29
Wed 8/5
1 adult, Economy
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Cheap flight deals from Birmingham to Ontario

Cheapest flights from Birmingham to Ontario
Explore the most affordable flight options available from Birmingham to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 29, 2026.

This Delta deal was found by Cheapflights users on 6/28. 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.
Thu 11/54:05 pm
BHM
-
ONT
1 stop7h 56m
Delta
Mon 11/910:59 pm
ONT
-
BHM
1 stop7h 22m
Delta
Deal found 6/28$327
This American Airlines deal was found by Cheapflights users on 6/27. 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.
Sat 8/17:05 pm
BHM
-
ONT
1 stop6h 54m
American Airlines
Wed 8/52:27 pm
ONT
-
BHM
1 stop7h 00m
American Airlines
Deal found 6/27$330
This American Airlines deal was found by Cheapflights users on 6/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:00 am
BHM
-
ONT
1 stop6h 29m
American Airlines
Sat 8/111:59 pm
ONT
-
BHM
1 stop7h 00m
American Airlines
Deal found 6/28$333
This Southwest deal was found by Cheapflights users on 6/27. 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.
Sat 8/16:50 pm
BHM
-
ONT
1 stop5h 45m
Southwest
Wed 8/51:10 pm
ONT
-
BHM
2 stops7h 25m
Southwest
Deal found 6/27$335
This Southwest deal was found by Cheapflights users on 6/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:50 pm
BHM
-
ONT
2 stops7h 45m
Southwest
Mon 11/92:45 pm
ONT
-
BHM
1 stop5h 25m
Southwest
Deal found 6/28$364
This Delta deal was found by Cheapflights users on 6/28. 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.
Tue 7/215:27 pm
BHM
-
ONT
1 stop6h 23m
Delta
Tue 7/2810:00 pm
ONT
-
BHM
1 stop8h 25m
Delta
Deal found 6/28$376
This Delta deal was found by Cheapflights users on 6/25. 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 10/205:30 pm
BHM
-
ONT
1 stop6h 44m
Delta
Wed 10/2812:00 pm
ONT
-
BHM
1 stop6h 05m
Delta
Deal found 6/25$387
This United Airlines deal was found by Cheapflights users on 6/24. 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 8/1511:20 am
BHM
-
ONT
1 stop8h 52m
United Airlines
Sat 8/225:00 am
ONT
-
BHM
2 stops10h 35m
United Airlines
Deal found 6/24$392
This Delta deal was found by Cheapflights users on 6/28. 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.
Wed 7/295:27 pm
BHM
-
ONT
1 stop6h 23m
Delta
Fri 7/3110:00 pm
ONT
-
BHM
1 stop8h 15m
Delta
Deal found 6/28$395
This Southwest deal was found by Cheapflights users on 6/24. 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.
Sat 8/158:10 am
BHM
-
ONT
2 stops9h 05m
Southwest
Sat 8/225:40 am
ONT
-
BHM
2 stops7h 00m
Southwest
Deal found 6/24$397

Find flight deals from Birmingham to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Birmingham (BHM) 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 June 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$327
(Delta)

One-way from

$164
(Southwest)

Popular in

March

Cheapest in

October

Average price

$607
Provider with most accurate pricing for Birmingham-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Birmingham-Ontario flights.
Search Deals
From Birmingham to Ontario
Search Deals
One-way flight from Birmingham to Ontario
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($7 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Birmingham 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 June 29, 2026.
Use the filters below to find and compare flights from Birmingham to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BirminghamOntario

BHM - ONT

BHMONT

Birmingham

Sat 8/15

8:10 am-3:15 pm

2 stops9h 05m

Ontario

Sat 8/22

5:40 am-2:40 pm

2 stops7h 00m

$397

BirminghamOntario

BHM - ONT

BHMONT

Birmingham

Thu 7/23

6:18 am-11:45 am

1 stop7h 27m

Ontario

Tue 7/28

2:15 pm-11:46 pm

1 stop7h 31m

$457

BirminghamOntario

BHM - ONT

BHMONT

Birmingham

Fri 7/24

4:00 pm-9:50 pm

1 stop7h 50m

Ontario

Fri 7/31

10:00 pm-8:15 am

1 stop8h 15m

$487
Quickest round-trip

BirminghamOntario

BHM - ONT

BHMONT

Birmingham

Fri 7/31

5:08 pm-9:55 pm

1 stop6h 47m

Ontario

Sat 8/8

5:45 am-2:08 pm

1 stop6h 23m

$492

BirminghamOntario

BHM - ONT

BHMONT

Birmingham

Thu 8/13

3:00 pm-9:59 pm

1 stop8h 59m

Ontario

Thu 8/27

5:00 am-1:47 pm

1 stop6h 47m

$503

BirminghamOntario

BHM - ONT

BHMONT

Birmingham

Tue 7/21

5:08 pm-9:55 pm

1 stop6h 47m

Ontario

Thu 7/30

5:00 am-1:43 pm

1 stop6h 43m

$522

BirminghamOntario

BHM - ONT

BHMONT

Birmingham

Mon 7/27

3:40 pm-8:42 pm

1 stop7h 02m

Ontario

Wed 8/5

5:45 am-4:20 pm

1 stop8h 35m

$538

BirminghamOntario

BHM - ONT

BHMONT

Birmingham

Thu 7/30

5:15 am-10:38 am

1 stop7h 23m

Ontario

Thu 7/30

10:00 pm-8:25 am

1 stop8h 25m

$575

BirminghamOntario

BHM - ONT

BHMONT

Birmingham

Sat 7/4

6:00 am-12:05 pm

2 stops8h 05m

Ontario

Mon 7/13

4:40 pm-12:50 am

1 stop6h 10m

$579

BirminghamOntario

BHM - ONT

BHMONT

Birmingham

Mon 7/20

5:27 pm-9:50 pm

1 stop6h 23m

Ontario

Fri 7/24

10:00 pm-8:15 am

1 stop8h 15m

$584

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/28

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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

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

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 June 29, 2026.
Peruse reviews from past customers who have flown with Southwest and American Airlines from Birmingham to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,246 reviews

Crew

8.6

Boarding

8.1

Overall

7.9

Food

7.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!
Southwest
7.9
Good
4,246 reviews
Southwest
7.9
Good
4,246 reviews

Crew

8.6

Boarding

8.1

Overall

7.9

Food

7.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!
American Airlines
7.1
Good
11,766 reviews
Southwest
7.9
Good
4,246 reviews

Crew

8.6

Boarding

8.1

Overall

7.9

Food

7.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

Related info for your journey

Find useful and relevant information for your journey from Birmingham 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 Birmingham, Alabama to Ontario?

    Airlines like Southwest, American Airlines, and Delta fly from Birmingham, Alabama to Ontario in about 7h 27m. The time it takes to get you to your destination can typically vary by up to 1h 38m. The distance between Birmingham, Alabama and Ontario is about 1763 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Birmingham, Alabama to Ontario round-trip?

    Cheapflights users have booked flights from Birmingham, Alabama to Ontario round-trip from $333. Another airline that can offer you cheap pricing is American Airlines. Users have found that Southwest is 36% cheaper than the other options available to this destination.

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

    One-way options have recently been found by users for as low as $138 on Delta. Other airlines that offer cheap prices include American Airlines from $143 and United Airlines from $153 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Birmingham 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.

See more FAQs

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Top 2 airlines flying from Birmingham to Ontario

Discover the top 2 airlines that operate flights from Birmingham 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 June 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$333Average$468FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$371Average$508FlexibilityNo cancel feeOn-time71%

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