$194+ 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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
BHM — ONT
Oct 31 — Nov 71
Round-trip
1 adult, Economy
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Find cheap flights from Birmingham to Ontario with Cheapflights
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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 1, 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 1, 2026.
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:18 am -
1 stop6h 17m
Wed 10/2812:43 pm -
1 stop5h 50m
Deal found 9/28![American Airlines logo]()
$387
This Delta deal was found by Cheapflights users on 10/1. 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 10/2412:28 pm -
1 stop9h 02m
Sat 10/317:07 am -
1 stop6h 52m
Deal found 10/1![Delta logo]()
$388
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/35:18 am -
1 stop7h 48m
Mon 11/911:10 pm -
1 stop8h 32m
Deal found 9/29![Delta logo]()
$423
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/285:18 am -
1 stop8h 35m
Sun 11/111:59 pm -
1 stop6h 58m
Deal found 9/29![American Airlines logo]()
$427
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/35:18 am -
1 stop7h 48m
Sun 11/811:05 pm -
1 stop7h 02m
Deal found 9/29![Delta logo]()
$463
This American Airlines deal was found by Cheapflights users on 9/30. 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.
Fri 12/1112:12 pm -
1 stop8h 32m
Tue 12/156:30 am -
2 stops12h 08m
Deal found 9/30![American Airlines logo]()
$480
This Delta deal was found by Cheapflights users on 10/1. 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 12/226:20 pm -
1 stop7h 21m
Wed 12/3010:35 pm -
1 stop9h 05m
Deal found 10/1![Delta logo]()
$485
This United Airlines deal was found by Cheapflights users on 9/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:14 pm -
1 stop6h 45m
Sat 10/316:00 am -
1 stop6h 05m
Deal found 9/30![United Airlines logo]()
$507
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 1, 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 1, 2026.
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/35:18 am -
1 stop7h 48m
Tue 11/107:05 am -
1 stop6h 10m
Deal found 9/29![Delta logo]()
$423
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 11/108:04 am -
1 stop6h 29m
Wed 11/116:00 am -
1 stop6h 05m
Deal found 9/26![United Airlines logo]()
$507
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.
Tue 11/178:04 am -
2 stops11h 57m
Wed 11/185:00 am -
1 stop7h 41m
Deal found 9/27![United Airlines logo]()
$512
This United Airlines deal was found by Cheapflights users on 10/1. 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 11/13:45 pm -
1 stop7h 06m
Sat 11/145:00 am -
2 stops13h 12m
Deal found 10/1![United Airlines logo]()
$552
This United Airlines deal was found by Cheapflights users on 9/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/23:54 pm -
1 stop7h 17m
Sun 12/65:45 am -
1 stop6h 26m
Deal found 9/30![United Airlines logo]()
$617
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 10/289:00 am -
2 stops13h 51m
Sun 11/16:00 am -
2 stops30h 41m
Deal found 9/28![United Airlines logo]()
$619
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.
Wed 10/216:32 am -
2 stops16h 26m
Wed 10/285:00 am -
2 stops13h 12m
Deal found 9/26![United Airlines logo]()
$650
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.
Tue 10/62:36 pm -
1 stop10h 13m
Sat 10/106:00 am -
1 stop8h 19m
Deal found 9/28![United Airlines logo]()
$721
This United Airlines deal was found by Cheapflights users on 10/1. 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 10/163:10 pm -
1 stop8h 49m
Tue 10/201:22 pm -
1 stop5h 59m
Deal found 10/1![United Airlines logo]()
$724
Last-minute flights from Birmingham to OntarioDiscover last-minute flight deals from Birmingham to Ontario. Data last updated October 1, 2026 and is based on user searches.
Discover last-minute flight deals from Birmingham to Ontario. Data last updated October 1, 2026 and is based on user searches.
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:18 am -
1 stop6h 17m
Wed 10/2812:43 pm -
1 stop5h 50m
Deal found 9/28![American Airlines logo]()
$387
This United Airlines deal was found by Cheapflights users on 9/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/215:14 pm -
1 stop6h 45m
Wed 10/285:00 am -
2 stops13h 12m
Deal found 9/30![United Airlines logo]()
$512
This United Airlines deal was found by Cheapflights users on 9/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/245:14 pm -
1 stop6h 45m
Sat 10/316:00 am -
1 stop6h 05m
Deal found 9/30![United Airlines logo]()
$507
This United Airlines deal was found by Cheapflights users on 9/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/274:55 pm -
1 stop6h 45m
Fri 10/305:00 am -
1 stop7h 46m
Deal found 9/30![United Airlines logo]()
$517
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/285:18 am -
1 stop8h 35m
Sun 11/111:59 pm -
1 stop6h 58m
Deal found 9/29![American Airlines logo]()
$427
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 10/295:45 am -
1 stop6h 10m
Sun 11/11:20 pm -
2 stops8h 05m
Deal found 9/26![Southwest logo]()
$456
This United Airlines deal was found by Cheapflights users on 9/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/318:04 am -
2 stops11h 57m
Fri 11/135:00 am -
1 stop7h 46m
Deal found 9/30![United Airlines logo]()
$522
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 1, 2026.
Search for one-way flight options from Birmingham to Ontario. Find affordable one-way fares based on user searches. Data last updated October 1, 2026.
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.
Tue 11/105:35 am -
1 stop6h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Southwest logo]()
$194
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.
Tue 11/108:04 am -
2 stops14h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![United Airlines logo]()
$199
This Southwest deal was found by Cheapflights users on 9/30. 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 9/30![Southwest logo]()
$204
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/139:08 pm -
3 stops39h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Multiple Airlines logo]()
$212
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.
Tue 11/245:15 pm -
2 stops8h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Southwest logo]()
$229
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/205:30 am -
1 stop6h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Southwest logo]()
$234
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 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $387 (American Airlines) |
One-way from | $194 (Southwest) |
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 1, 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
Tue 11/24
3:03 pm-9:40 pm
1 stop8h 37m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$204
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
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Wed 12/23
5:20 am-10:00 am
1 stop6h 40m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$204
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Tue 11/24
5:15 pm-11:55 pm
2 stops8h 40m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$229
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Fri 11/13
4:28 pm-11:51 pm
2 stops33h 23m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$231
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Fri 11/20
5:30 am-9:55 am
1 stop6h 25m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$234
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Sat 2/20
3:03 pm-9:39 pm
1 stop8h 36m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$254
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Thu 12/24
3:48 pm-9:00 pm
1 stop7h 12m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$254
Quickest round-trip
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Tue 10/13
4:30 pm-8:50 pm
1 stop6h 20m
Ontario
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$301
BirminghamOntario
BHM Birmingham - ONT Ontario
BHMONT
Birmingham
Tue 11/3
5:18 am-11:06 am
1 stop7h 48m
Ontario
Tue 11/10
7:05 am-3:15 pm
1 stop6h 10m
$423
Showing 1-10 of 18 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 |
- 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 October 1, 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.
Boarding
8.1
Crew
8.6
Entertainment
7.5
Food
7.0
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Crew
8.6
Entertainment
7.5
Food
7.0
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Crew
8.6
Entertainment
7.5
Food
7.0
Comfort
8.0
Overall
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 1, 2026.
Birmingham and Ontario flights
Browse other Birmingham and Ontario flight options. Last updated on October 1, 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 1, 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 1, 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% |