$144+ Cheap flights from Birmingham, AL to Ontario (BHM - 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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
BHM — ONT
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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Find cheap flights from Birmingham to Ontario 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 Birmingham to Ontario
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Cheapest flights from Birmingham to OntarioExplore 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 October 30, 2026.
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 October 30, 2026.
This American Airlines deal was found by Cheapflights users on 10/30. 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 12/95:05 am -
1 stop6h 37m
Mon 12/146:00 am -
1 stop8h 23m
Deal found 10/30![American Airlines logo]()
$387
This American Airlines deal was found by Cheapflights users on 10/30. 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 12/55:05 am -
1 stop6h 37m
Sat 12/121:02 pm -
1 stop5h 36m
Deal found 10/30![American Airlines logo]()
$388
This Southwest deal was found by Cheapflights users on 10/25. 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.
Thu 12/175:20 pm -
1 stop7h 30m
Tue 1/51:30 pm -
1 stop7h 40m
Deal found 10/25![Southwest logo]()
$391
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Mon 11/237:17 pm -
1 stop6h 42m
Tue 12/112:45 pm -
1 stop5h 33m
Deal found 10/28![American Airlines logo]()
$392
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/116:15 am -
1 stop6h 52m
Tue 12/157:05 am -
1 stop7h 09m
Deal found 10/29![Delta logo]()
$396
This Delta deal was found by Cheapflights users on 10/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/215:20 am -
1 stop6h 44m
Thu 12/317:06 am -
1 stop8h 34m
Deal found 10/26![Delta logo]()
$407
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Wed 12/164:49 pm -
1 stop7h 10m
Sat 12/265:00 am -
1 stop7h 43m
Deal found 10/26![United Airlines logo]()
$411
This Southwest deal was found by Cheapflights users on 10/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/235:15 pm -
2 stops8h 40m
Fri 12/2510:55 am -
1 stop7h 10m
Deal found 10/29![Southwest logo]()
$412
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Tue 11/178:04 am -
1 stop6h 29m
Wed 11/186:00 am -
1 stop6h 05m
Deal found 10/27![United Airlines logo]()
$455
Best flights from Birmingham to OntarioDiscover carefully curated flight deals from Birmingham to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
Discover carefully curated flight deals from Birmingham to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
This Southwest deal was found by Cheapflights users on 10/30. 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 12/95:35 am -
2 stops8h 35m
Mon 12/146:50 am -
2 stops8h 25m
Deal found 10/30![Southwest logo]()
$407
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Wed 12/164:49 pm -
1 stop7h 10m
Sat 12/265:00 am -
1 stop7h 43m
Deal found 10/26![United Airlines logo]()
$411
This Southwest deal was found by Cheapflights users on 10/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2311:30 am -
1 stop6h 50m
Fri 12/2510:55 am -
1 stop7h 10m
Deal found 10/29![Southwest logo]()
$407
This United Airlines deal was found by Cheapflights users on 10/26. 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 11/178:04 am -
2 stops11h 57m
Wed 11/185:00 am -
1 stop7h 41m
Deal found 10/26![United Airlines logo]()
$460
This United Airlines deal was found by Cheapflights users on 10/26. 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 11/173:45 pm -
1 stop7h 06m
Sun 11/226:00 am -
1 stop8h 19m
Deal found 10/26![United Airlines logo]()
$511
This United Airlines deal was found by Cheapflights users on 10/25. 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 12/33:54 pm -
1 stop7h 17m
Tue 12/85:00 am -
1 stop7h 56m
Deal found 10/25![United Airlines logo]()
$527
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Sat 11/214:55 pm -
1 stop6h 45m
Tue 11/246:00 am -
1 stop8h 19m
Deal found 10/26![United Airlines logo]()
$597
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Mon 11/95:00 pm -
1 stop6h 40m
Sat 11/146:00 am -
1 stop6h 05m
Deal found 10/26![United Airlines logo]()
$624
Last-minute flights from Birmingham to OntarioDiscover last-minute flight deals from Birmingham to Ontario. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from Birmingham to Ontario. Data last updated October 30, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Mon 11/165:00 pm -
1 stop6h 40m
Wed 11/185:00 am -
1 stop7h 41m
Deal found 10/27![United Airlines logo]()
$481
This Southwest deal was found by Cheapflights users on 10/27. 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 11/165:35 am -
2 stops8h 35m
Wed 11/183:20 pm -
1 stop5h 50m
Deal found 10/27![Southwest logo]()
$486
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Mon 11/161:15 pm -
2 stops11h 33m
Thu 11/195:00 am -
1 stop7h 41m
Deal found 10/27![United Airlines logo]()
$527
This United Airlines deal was found by Cheapflights users on 10/27. 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.
Tue 11/178:04 am -
1 stop6h 29m
Wed 11/186:00 am -
1 stop6h 05m
Deal found 10/27![United Airlines logo]()
$455
This United Airlines deal was found by Cheapflights users on 10/26. 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 11/173:45 pm -
1 stop7h 06m
Sun 11/226:00 am -
1 stop8h 19m
Deal found 10/26![United Airlines logo]()
$511
This American Airlines deal was found by Cheapflights users on 10/28. 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.
Mon 11/237:17 pm -
1 stop6h 42m
Tue 12/112:45 pm -
1 stop5h 33m
Deal found 10/28![American Airlines logo]()
$392
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Thu 11/263:03 pm -
1 stop6h 39m
Thu 12/35:45 am -
1 stop8h 29m
Deal found 10/29![United Airlines logo]()
$475
One-way flights from Birmingham to OntarioSearch for one-way flight options from Birmingham to Ontario. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
Search for one-way flight options from Birmingham to Ontario. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/44:28 pm -
2 stops31h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Multiple Airlines logo]()
$144
This Delta deal was found by Cheapflights users on 10/28. 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.
Fri 12/45:22 pm -
1 stop6h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Delta logo]()
$188
This Delta deal was found by Cheapflights users on 10/30. 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 11/266:00 am -
1 stop7h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Delta logo]()
$194
This Southwest deal was found by Cheapflights users on 10/30. 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 12/2311:30 am -
1 stop6h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/30![Southwest logo]()
$204
This Southwest deal was found by Cheapflights users on 10/28. 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 11/195:35 am -
2 stops8h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![Southwest logo]()
$219
This Southwest deal was found by Cheapflights users on 10/26. 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.
Fri 12/185:25 am -
1 stop6h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Southwest logo]()
$244
This United Airlines deal was found by Cheapflights users on 10/28. 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 11/213:03 pm -
1 stop8h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![United Airlines logo]()
$248
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 October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $387 (American Airlines) |
One-way from | $144 (Kiwi.com) |
Popular in | March |
Cheapest in | August |
Average price | $400 |
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 7,457,451 searches. Data last updated October 30, 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
Cheapest round-trip
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Fri 12/4
9:08 pm-6:31 pm
3 stops47h 23m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$151
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Fri 12/4
5:22 pm-9:55 pm
1 stop6h 33m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$188
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Wed 12/23
11:30 am-4:20 pm
1 stop6h 50m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$204
Quickest round-trip
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Fri 12/18
5:25 am-9:50 am
1 stop6h 25m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$219
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Sat 11/21
3:03 pm-9:40 pm
1 stop8h 37m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$264
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Sat 3/20
4:48 pm-9:39 pm
1 stop6h 51m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$276
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Tue 3/2
10:05 am-9:17 pm
2 stops13h 12m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$329
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Wed 12/9
5:35 am-12:10 pm
2 stops8h 35m
Ontario
Mon 12/14
6:50 am-5:15 pm
2 stops8h 25m
$407
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Wed 12/23
11:30 am-4:20 pm
1 stop6h 50m
Ontario
Fri 12/25
10:55 am-8:05 pm
1 stop7h 10m
$407
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Wed 12/16
4:49 pm-9:59 pm
1 stop7h 10m
Ontario
Sat 12/26
5:00 am-2:43 pm
1 stop7h 43m
$411
Showing 1-10 of 15 resultsSorted by cheapest first
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 October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- 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.
BHM-ONT
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 Birmingham to Ontario
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 October 30, 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.
Overall
7.9
Crew
8.6
Entertainment
7.4
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
7.9
Crew
8.6
Entertainment
7.4
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
7.9
Crew
8.6
Entertainment
7.4
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
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.
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Alternative routes for Birmingham to Ontario
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Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Birmingham to Ontario by cabin class
Find flights from Birmingham to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.
Birmingham and Ontario flights
Browse other Birmingham and Ontario flight options. Last updated on October 30, 2026.
Other flights from Birmingham
Browse through other flights departing from Birmingham. Flights are based on user searches made on Cheapflights and were last updated on October 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$333 | Average$468 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$409 | Average$508 | FlexibilityNo cancel fee | On-time71% |