$194+ Cheap flights from Ontario to Birmingham, AL (ONT - BHM)
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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BHM
Oct 29 — Nov 51
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Birmingham with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Birmingham
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ontario to BirminghamExplore 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 September 29, 2026.
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 September 29, 2026.
This Southwest deal was found by Cheapflights users on 9/28. 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.
Wed 11/43:20 pm -
1 stop5h 50m
Wed 11/115:35 pm -
1 stop6h 10m
Deal found 9/28![Southwest logo]()
$387
This American Airlines deal was found by Cheapflights users on 9/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/410:30 am -
1 stop8h 09m
Sun 12/64:45 pm -
1 stop9h 01m
Deal found 9/25![American Airlines logo]()
$437
This Southwest deal was found by Cheapflights users on 9/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/43:20 pm -
1 stop5h 45m
Sun 12/65:50 pm -
2 stops7h 45m
Deal found 9/25![Southwest logo]()
$442
This Southwest deal was found by Cheapflights users on 9/26. 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 10/292:50 pm -
1 stop5h 30m
Sun 11/15:00 am -
1 stop10h 05m
Deal found 9/26![Southwest logo]()
$451
This Southwest deal was found by Cheapflights users on 9/28. 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 12/176:55 am -
1 stop7h 50m
Sun 12/207:00 am -
1 stop8h 20m
Deal found 9/28![Southwest logo]()
$457
This Southwest deal was found by Cheapflights users on 9/24. 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.
Thu 10/1512:40 pm -
1 stop7h 40m
Mon 10/195:45 am -
1 stop6h 10m
Deal found 9/24![Southwest logo]()
$463
Best flights from Ontario to BirminghamDiscover carefully curated flight deals from Ontario to Birmingham that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 29, 2026.
Discover carefully curated flight deals from Ontario to Birmingham that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 29, 2026.
This Southwest deal was found by Cheapflights users on 9/26. 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.
Tue 11/33:20 pm -
1 stop5h 45m
Sat 11/77:40 am -
2 stops7h 50m
Deal found 9/26![Southwest logo]()
$392
This United Airlines deal was found by Cheapflights users on 9/26. 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.
Tue 11/176:00 am -
1 stop6h 05m
Wed 11/183:03 pm -
1 stop8h 37m
Deal found 9/26![United Airlines logo]()
$507
This Southwest deal was found by Cheapflights users on 9/24. 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.
Thu 10/1512:40 pm -
1 stop7h 40m
Mon 10/195:45 am -
1 stop6h 10m
Deal found 9/24![Southwest logo]()
$463
This United Airlines deal was found by Cheapflights users on 9/28. 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.
Sat 11/147:00 am -
1 stop8h 39m
Tue 11/178:04 am -
2 stops11h 57m
Deal found 9/28![United Airlines logo]()
$512
This United Airlines deal was found by Cheapflights users on 9/28. 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.
Wed 12/165:45 am -
1 stop6h 26m
Mon 12/217:45 am -
1 stop6h 57m
Deal found 9/28![United Airlines logo]()
$532
This United Airlines deal was found by Cheapflights users on 9/24. 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.
Thu 12/35:00 am -
1 stop7h 56m
Sat 12/123:54 pm -
1 stop7h 17m
Deal found 9/24![United Airlines logo]()
$577
Last-minute flights from Ontario to BirminghamDiscover last-minute flight deals from Ontario to Birmingham. Data last updated September 29, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Birmingham. Data last updated September 29, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/25. 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 10/137:07 am -
1 stop6h 54m
Sat 10/172:14 pm -
1 stop7h 16m
Deal found 9/25![Delta logo]()
$494
This Southwest deal was found by Cheapflights users on 9/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/142:00 pm -
1 stop5h 30m
Mon 10/195:45 am -
1 stop6h 10m
Deal found 9/25![Southwest logo]()
$530
This Southwest deal was found by Cheapflights users on 9/24. 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.
Thu 10/1512:40 pm -
1 stop7h 40m
Mon 10/195:45 am -
1 stop6h 10m
Deal found 9/24![Southwest logo]()
$463
This United Airlines deal was found by Cheapflights users on 9/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/155:00 am -
1 stop7h 53m
Mon 10/195:14 pm -
1 stop6h 45m
Deal found 9/25![United Airlines logo]()
$497
This Southwest deal was found by Cheapflights users on 9/26. 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 10/292:50 pm -
1 stop5h 30m
Sun 11/15:00 am -
1 stop10h 05m
Deal found 9/26![Southwest logo]()
$451
This United Airlines deal was found by Cheapflights users on 9/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:00 am -
1 stop6h 05m
Thu 11/53:45 pm -
1 stop7h 06m
Deal found 9/25![United Airlines logo]()
$507
This United Airlines deal was found by Cheapflights users on 9/26. 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.
Thu 10/296:00 am -
1 stop6h 05m
Sun 11/13:45 pm -
1 stop7h 06m
Deal found 9/26![United Airlines logo]()
$547
One-way flights from Ontario to BirminghamSearch for one-way flight options from Ontario to Birmingham. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.
Search for one-way flight options from Ontario to Birmingham. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.
This Southwest deal was found by Cheapflights users on 9/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/22:45 pm -
1 stop5h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Southwest logo]()
$194
This United Airlines deal was found by Cheapflights users on 9/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/15:00 am -
1 stop7h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![United Airlines logo]()
$234
This United Airlines deal was found by Cheapflights users on 9/24. 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 10/175:00 am -
1 stop7h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![United Airlines logo]()
$254
This United Airlines deal was found by Cheapflights users on 9/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:03 am -
2 stops11h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![United Airlines logo]()
$259
This Southwest deal was found by Cheapflights users on 9/27. 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.
Mon 11/3012:45 pm -
1 stop8h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Southwest logo]()
$264
This Southwest deal was found by Cheapflights users on 9/25. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/112:10 pm -
2 stops8h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Southwest logo]()
$269
This United Airlines deal was found by Cheapflights users on 9/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/285:00 am -
1 stop7h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![United Airlines logo]()
$294
Find 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 September 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $387 (Southwest) |
One-way from | $194 (Southwest) |
Popular in | November |
Cheapest in | April |
Average price | $486 |
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 7,457,451 searches. Data last updated September 29, 2026.
Use the filters below to find and compare flights from Ontario to Birmingham that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
OntarioBirmingham
ONT Ontario - BHM Birmingham
ONTBHM
Ontario
Mon 11/2
2:45 pm-10:10 pm
1 stop5h 25m
Birmingham
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$194
OntarioBirmingham
ONT Ontario - BHM Birmingham
ONTBHM
Ontario
Sat 10/17
5:00 am-2:53 pm
1 stop7h 53m
Birmingham
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$254
OntarioBirmingham
ONT Ontario - BHM Birmingham
ONTBHM
Ontario
Tue 10/27
6:00 am-9:28 pm
2 stops13h 28m
Birmingham
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$259
OntarioBirmingham
ONT Ontario - BHM Birmingham
ONTBHM
Ontario
Sun 11/1
12:10 pm-10:10 pm
2 stops8h 00m
Birmingham
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$269
OntarioBirmingham
ONT Ontario - BHM Birmingham
ONTBHM
Ontario
Sun 3/28
5:00 am-2:03 pm
1 stop7h 03m
Birmingham
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$294
OntarioBirmingham
ONT Ontario - BHM Birmingham
ONTBHM
Ontario
Sun 10/25
5:00 am-2:41 pm
1 stop7h 41m
Birmingham
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$324
OntarioBirmingham
ONT Ontario - BHM Birmingham
ONTBHM
Ontario
Sun 10/4
6:10 am-4:15 pm
1 stop8h 05m
Birmingham
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$381
OntarioBirmingham
ONT Ontario - BHM Birmingham
ONTBHM
Ontario
Sun 10/18
5:00 am-2:53 pm
1 stop7h 53m
Birmingham
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$381
OntarioBirmingham
ONT Ontario - BHM Birmingham
ONTBHM
Ontario
Wed 10/21
5:00 am-6:11 pm
2 stops11h 11m
Birmingham
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$386
OntarioBirmingham
ONT Ontario - BHM Birmingham
ONTBHM
Ontario
Tue 11/3
3:20 pm-11:05 pm
1 stop5h 45m
Birmingham
Sat 11/7
7:40 am-1:30 pm
2 stops7h 50m
$392
Showing 1-10 of 15 resultsSorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
ONT-BHM
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
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 September 29, 2026.
Read through reviews of airlines operating flights from Ontario to Birmingham, such as Southwest,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Food
7.0
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
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.
Traveling to a place near Birmingham?
Book flights to Birmingham if you plan to visit one of these locationsFultondale
Hoover
Bessemer
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Other flights to Birmingham
Explore flights to Birmingham departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 29, 2026.
Complete your trip
Complete your trip to Birmingham by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Birmingham by cabin class
Find flights from Ontario to Birmingham, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Birmingham flights
Browse other Ontario and Birmingham flight options. Last updated on September 29, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on September 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Ontario to Birmingham
Discover the top 3 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 7,457,451 searches. Data last updated September 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$223 | Average$438 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$284 | Average$546 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$333 | Average$496 | FlexibilityNo cancel fee | On-time63% |