$194+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
BHM — ONT
Sep 24 — Oct 11
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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Best
Last-minute
One-way
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 August 25, 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 August 25, 2026.
This Delta deal was found by Cheapflights users on 8/20. 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.
Sat 9/1212:20 pm -
1 stop8h 21m
Mon 11/1612:22 pm -
1 stop5h 48m
Deal found 8/20![Delta logo]()
$387
This American Airlines deal was found by Cheapflights users on 8/20. 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 9/127:24 am -
2 stops12h 53m
Sat 9/192:22 pm -
1 stop7h 03m
Deal found 8/20![American Airlines logo]()
$390
This Southwest deal was found by Cheapflights users on 8/20. 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 10/225:45 am -
1 stop6h 10m
Mon 10/261:30 pm -
2 stops6h 45m
Deal found 8/20![Southwest logo]()
$392
This American Airlines deal was found by Cheapflights users on 8/20. 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 9/99:25 am -
1 stop6h 00m
Wed 9/232:22 pm -
1 stop7h 03m
Deal found 8/20![American Airlines logo]()
$399
This Delta deal was found by Cheapflights users on 8/20. 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.
Sat 9/1212:20 pm -
1 stop8h 21m
Fri 9/1810:00 pm -
1 stop8h 24m
Deal found 8/20![Delta logo]()
$400
This Southwest deal was found by Cheapflights users on 8/23. 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 11/197:05 am -
1 stop5h 40m
Tue 11/246:45 am -
2 stops10h 20m
Deal found 8/23![Southwest logo]()
$402
This Southwest deal was found by Cheapflights users on 8/20. 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 11/187:05 am -
1 stop5h 40m
Wed 11/252:35 pm -
1 stop6h 10m
Deal found 8/20![Southwest logo]()
$407
This United Airlines deal was found by Cheapflights users on 8/24. 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 9/53:40 pm -
1 stop7h 13m
Sat 9/125:00 am -
1 stop6h 47m
Deal found 8/24![United Airlines logo]()
$411
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 August 25, 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 August 25, 2026.
This Delta deal was found by Cheapflights users on 8/21. 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 10/223:55 pm -
1 stop7h 59m
Mon 10/2611:15 pm -
1 stop6h 52m
Deal found 8/21![Delta logo]()
$387
This United Airlines deal was found by Cheapflights users on 8/24. 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 9/51:07 pm -
2 stops9h 46m
Sat 9/121:18 pm -
1 stop5h 58m
Deal found 8/24![United Airlines logo]()
$416
This Southwest deal was found by Cheapflights users on 8/20. 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 10/226:35 am -
2 stops9h 25m
Mon 10/265:30 am -
2 stops8h 40m
Deal found 8/20![Southwest logo]()
$425
This Southwest deal was found by Cheapflights users on 8/19. 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 9/85:45 pm -
1 stop6h 20m
Tue 9/151:50 pm -
1 stop6h 05m
Deal found 8/19![Southwest logo]()
$484
This United Airlines deal was found by Cheapflights users on 8/23. 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 10/172:46 pm -
1 stop9h 13m
Wed 10/215:00 am -
1 stop7h 53m
Deal found 8/23![United Airlines logo]()
$487
This Southwest deal was found by Cheapflights users on 8/22. 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 10/154:50 pm -
2 stops9h 05m
Sun 10/1812:55 pm -
2 stops8h 15m
Deal found 8/22![Southwest logo]()
$491
This United Airlines deal was found by Cheapflights users on 8/20. 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 11/1711:00 am -
2 stops11h 51m
Wed 11/185:00 am -
1 stop7h 41m
Deal found 8/20![United Airlines logo]()
$492
This United Airlines deal was found by Cheapflights users on 8/22. 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.
Fri 10/233:57 pm -
1 stop7h 01m
Mon 11/26:00 am -
1 stop6h 05m
Deal found 8/22![United Airlines logo]()
$500
Last-minute flights from Birmingham to OntarioDiscover last-minute flight deals from Birmingham to Ontario. Data last updated August 25, 2026 and is based on user searches.
Discover last-minute flight deals from Birmingham to Ontario. Data last updated August 25, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 8/25. 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 9/12:08 pm -
1 stop7h 45m
Wed 9/912:17 pm -
1 stop8h 46m
Deal found 8/25![Delta logo]()
$496
This United Airlines deal was found by Cheapflights users on 8/24. 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 9/53:40 pm -
1 stop7h 13m
Sat 9/125:00 am -
1 stop6h 47m
Deal found 8/24![United Airlines logo]()
$411
This American Airlines deal was found by Cheapflights users on 8/20. 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 9/99:25 am -
1 stop6h 00m
Wed 9/232:22 pm -
1 stop7h 03m
Deal found 8/20![American Airlines logo]()
$399
This Southwest deal was found by Cheapflights users on 8/20. 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 9/96:25 am -
1 stop5h 50m
Wed 9/231:10 pm -
2 stops7h 25m
Deal found 8/20![Southwest logo]()
$424
This United Airlines deal was found by Cheapflights users on 8/20. 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 9/93:40 pm -
1 stop7h 13m
Tue 9/155:00 am -
1 stop6h 47m
Deal found 8/20![United Airlines logo]()
$499
This Southwest deal was found by Cheapflights users on 8/23. 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 9/1710:35 am -
1 stop7h 35m
Tue 9/2212:30 pm -
2 stops8h 05m
Deal found 8/23![Southwest logo]()
$455
This United Airlines deal was found by Cheapflights users on 8/20. 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 9/193:40 pm -
1 stop7h 13m
Tue 9/296:00 am -
1 stop6h 09m
Deal found 8/20![United Airlines logo]()
$487
This American Airlines deal was found by Cheapflights users on 8/22. 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 9/237:24 am -
1 stop6h 23m
Wed 9/302:22 pm -
1 stop7h 03m
Deal found 8/22![American Airlines logo]()
$387
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 August 25, 2026.
Search for one-way flight options from Birmingham to Ontario. Find affordable one-way fares based on user searches. Data last updated August 25, 2026.
This United Airlines deal was found by Cheapflights users on 8/21. 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 9/153:40 pm -
1 stop7h 13m
Deal found 8/21![United Airlines logo]()
$194
This American Airlines deal was found by Cheapflights users on 8/21. 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 9/159:25 am -
2 stops10h 52m
Deal found 8/21![American Airlines logo]()
$203
This Delta deal was found by Cheapflights users on 8/20. 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.
Sun 9/612:06 pm -
1 stop8h 24m
Deal found 8/20![Delta logo]()
$206
This Southwest deal was found by Cheapflights users on 8/23. 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 10/210:40 am -
1 stop7h 10m
Deal found 8/23![Southwest logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 8/23. 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 10/24:18 pm -
2 stops33h 29m
Deal found 8/23![Multiple Airlines logo]()
$213
This Delta deal was found by Cheapflights users on 8/20. 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.
Sun 10/116:35 am -
1 stop6h 31m
Deal found 8/20![Delta logo]()
$234
This American Airlines deal was found by Cheapflights users on 8/20. 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.
Sun 9/275:20 am -
1 stop6h 09m
Deal found 8/20![American Airlines logo]()
$264
This Southwest deal was found by Cheapflights users on 8/20. 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 9/275:15 am -
2 stops8h 45m
Deal found 8/20![Southwest logo]()
$269
This Delta deal was found by Cheapflights users on 8/20. 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 9/25:06 am -
1 stop7h 36m
Deal found 8/20![Delta logo]()
$291
This Delta deal was found by Cheapflights users on 8/20. 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 9/312:05 pm -
1 stop8h 25m
Deal found 8/20![Delta logo]()
$294
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 August 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $387 (Delta) |
One-way from | $163 (Kiwi.com) |
Popular in | September |
Cheapest in | August |
Average price | $358 |
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 August 25, 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
Thu 10/22
3:55 pm-9:54 pm
1 stop7h 59m
Ontario
Mon 10/26
11:15 pm-8:07 am
1 stop6h 52m
$387
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Sat 9/5
1:07 pm-8:53 pm
2 stops9h 46m
Ontario
Sat 9/12
1:18 pm-9:16 pm
1 stop5h 58m
$416
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Thu 10/22
6:35 am-2:00 pm
2 stops9h 25m
Ontario
Mon 10/26
5:30 am-4:10 pm
2 stops8h 40m
$425
Quickest round-trip
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Tue 9/8
5:45 pm-10:05 pm
1 stop6h 20m
Ontario
Tue 9/15
1:50 pm-9:55 pm
1 stop6h 05m
$484
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Sat 10/17
2:46 pm-9:59 pm
1 stop9h 13m
Ontario
Wed 10/21
5:00 am-2:53 pm
1 stop7h 53m
$487
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Thu 10/15
4:50 pm-11:55 pm
2 stops9h 05m
Ontario
Sun 10/18
12:55 pm-11:10 pm
2 stops8h 15m
$491
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Tue 11/17
11:00 am-8:51 pm
2 stops11h 51m
Ontario
Wed 11/18
5:00 am-2:41 pm
1 stop7h 41m
$492
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Fri 10/23
3:57 pm-8:58 pm
1 stop7h 01m
Ontario
Mon 11/2
6:00 am-2:05 pm
1 stop6h 05m
$500
Cheapest one-way
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Tue 9/15
9:25 am-6:17 pm
2 stops10h 52m
$203
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Sun 9/27
5:15 am-2:00 pm
1 stop10h 45m
$299
Showing 1-10 of 17 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 August.
| 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 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.
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 August 25, 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
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
8.0
Crew
8.6
Entertainment
7.5
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 August 25, 2026.
Birmingham and Ontario flights
Browse other Birmingham and Ontario flight options. Last updated on August 25, 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 August 25, 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 August 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$333 | Average$468 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$371 | Average$508 | FlexibilityNo cancel fee | On-time71% |