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BHM - ONT

$258 Find cheap flights from Birmingham, Alabama to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Birmingham to Ontario departing on 7/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Wed 6/12
Wed 6/19

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Birmingham to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Birmingham to Ontario, as well as popular online travel agencies
In the last 7 days travelers have searched 41,771,603 times on KAYAK, and here is why:

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Cheap flight deals from Birmingham to Ontario (BHM-ONT)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Birmingham to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
3:30 pm - 10:28 pmBHM-ONT
8h 58m1 stop
7:00 am - 4:41 pmONT-BHM
7h 41m1 stop
$422Delta
Find Deal
Wed, Sep 18 - Sat, Sep 21
1:15 pm - 11:51 pmBHM-ONT
12h 36m2 stops
12:45 pm - 10:17 pmONT-BHM
7h 32m1 stop
$427Delta
Find Deal
Wed, Sep 18 - Sat, Sep 21
1:15 pm - 11:51 pmBHM-ONT
12h 36m2 stops
5:00 pm - 8:15 amONT-BHM
13h 15m2 stops
$438Delta
Find Deal
Wed, Sep 18 - Sat, Sep 21
2:41 pm - 10:59 pmBHM-ONT
10h 18m1 stop
12:49 pm - 11:10 pmONT-BHM
8h 21m1 stop
$459American Airlines
Find Deal
Thu, Jun 13 - Wed, Jun 19
5:51 pm - 11:00 pmBHM-ONT
7h 09m1 stop
7:05 am - 2:50 pmONT-BHM
5h 45m1 stop
$482Delta
Find Deal
Thu, Jun 20 - Sat, Jun 29
1:07 pm - 6:59 pmBHM-ONT
7h 52m1 stop
10:29 pm - 7:43 amONT-BHM
7h 14m1 stop
$491American Airlines
Find Deal
Tue, May 28 - Fri, May 31
3:45 pm - 8:48 pmBHM-ONT
7h 03m1 stop
6:25 pm - 10:00 pmONT-BHM
25h 35m1 stop
$514United Airlines
Find Deal
Tue, Jun 11 - Tue, Jun 18
3:03 pm - 9:14 pmBHM-ONT
8h 11m1 stop
6:00 am - 2:01 pmONT-BHM
6h 01m1 stop
$629United Airlines
Find Deal
Wed, Jun 19 - Sun, Jun 23
1:39 pm - 11:58 pmBHM-ONT
12h 19m2 stops
4:24 pm - 9:59 amONT-BHM
15h 35m2 stops
$856Alaska Airlines
Find Deal
Tue, Jun 11 - Tue, Jun 18
9:32 am - 7:25 pmBHM-ONT
11h 53m2 stops
4:24 pm - 9:59 amONT-BHM
15h 35m2 stops
$1,191Alaska Airlines
Find Deal
Thu, Jun 13 - Mon, Jun 17

Flights from Birmingham to Ontario - Travel Insights & Trends

Get data-powered insights and trends into flights from Birmingham to Ontario to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Birmingham to Ontario?

The average price of all flights from Birmingham, Alabama to Ontario clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Birmingham to Ontario, look for departures on Wednesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Ontario, Tuesday is the cheapest day to fly and Thursday is the most expensive.

What is the cheapest month to fly from Birmingham, Alabama to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Birmingham, Alabama to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Birmingham, Alabama to Ontario is January, where tickets cost $316 on average. On the other hand, the most expensive months are October and December, where the average cost of tickets is $770 and $762 respectively.

How far in advance should I book a flight from Birmingham, Alabama to Ontario?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Birmingham, Alabama to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Birmingham, Alabama to Ontario, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 42 days before departure.

Which airlines provide the cheapest flights from Birmingham to Ontario?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Birmingham to Ontario were found on Delta ($422) and American Airlines ($459). Delta proposed the cheapest one-way flight at $258.

Good to know

Low season

September

High season

August

Cheapest flight

$258
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from Birmingham to Ontario

When to book flights from Birmingham to Ontario

Are your dates flexible? Find out the best times to travel from Birmingham to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Birmingham to Ontario

  • What is the cheapest flight from Birmingham, Alabama to Ontario?

    In the last 3 days, the lowest price for a flight from Birmingham, Alabama to Ontario was $258 for a one-way ticket and $422 for a round-trip.

  • Do I need a passport to fly between Birmingham and Ontario?

    No, a passport isn't needed to fly from Birmingham to Ontario. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Birmingham to Ontario?

    When flying out of Birmingham you will be using Birmingham. You will be landing at Ontario, also known as Ontario.

  • Which aircraft models fly most regularly from Birmingham to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Birmingham to Ontario?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Birmingham and Ontario, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Birmingham to Ontario, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Birmingham to Ontario are Delta and United Airlines. With an average price for the route of $465 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $595 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Birmingham to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Birmingham to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Birmingham to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Birmingham is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Birmingham to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Birmingham with another airline. Booking your flights between Birmingham and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Birmingham to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Birmingham up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 3 airlines serving from Birmingham to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Birmingham to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Birmingham to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10736 reviews
7.4Food
8.2Boarding
7.9Comfort
8.0Entertainment
8.6Crew
Airline reviews

There was a loud squeaky sound the whole time we were flying.

6.0 GoodEliza, Apr 2024SAN - LAX
Read more about Delta reviews

There was a loud squeaky sound the whole time we were flying.

Had a broken tray in business class. Crew just shrugged it off.

I didn’t like that I could not select my seat and was assigned a seat when I checked in at LAX

Great experience overall. Check in at Austin was congested as they only have about 6 check in kiosks, one was broken, and there was a lot of Spring Break travelers.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Everything was very good other than I had selected a specific seat when I booked the flight and they changed it once I checked-in the day before my flight. I was still in first class but lost my aisle seat for a window seat. Being tall, the aisle offers more comfort so I always select an aisle seat.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Crew was not friendly when I went to request a seat change.

Really impressive staff at airport and on plane, especially given how busy it was

Was a great smooth flight from Detroit to San Diego.

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

The WiFi didn’t work and the seats are too close together. Very uncomfortable.

So so. Terrible aircraft choice for that leg of the flight.

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

Fight crew was not very attentive and the bastions were gross!

Our flight was great we left Kona earlier and got into LAX almost an 1hour earlier as well. LAX AA is in repair so to get out and found our bus to get pick up was a bit confusing.

Plane was good but was delayed. probably not AA fault but caused a 1 hour delay. Seating was cramped.

5 hour flight - full flight - not enough room to use my computer - slightly delayed - Admirals club was excellent quality food, drink made up for flight seating. No food offerred on flight, you ahd to prebook.

We experience delays on departure and connecting flights resulting in 14 hour to our next departure. We were accommodated with a night's stay but was only provided a 12 dollar meals accommodation. The airlines rules state.at least 50 dollars. In any case, it can not make up for the whole day missed on our vacation in Sydney Australia.

I can say I will not be taking this airline again any time soon. Seat were uncomfortable and too tight. Lack of chair screen and little overhead space.

Plane felt so crowded and tightly packed. The chair itself was not comfortable.

They attended to my needs as I couldn't walk and they provided a wheelchair for me.q

Poor availability of food. Cold cabin temperature. Extremely long waiting time for a flight attendant to respond to a call button signal.

2.5h delay due to unruly passenger in first class. Had to be removed from the flight. No food unless pre ordered. Didn't know we would need it because of delay.

Book cheap flights from Birmingham to Ontario

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Birmingham to Ontario found on KAYAK in the last 72 hours.
7/21Sun
1 stopDelta
9h 20mBHM-ONT
$258
8/15Thu
1 stopUnited Airlines
6h 00mBHM-ONT
$278
6/11Tue
2 stopsUnited Airlines
23h 00mBHM-ONT
$302
6/11Tue
1 stopUnited Airlines
16h 36mBHM-ONT
$340
8/15Thu
2 stopsUnited Airlines
14h 00mBHM-ONT
$369
5/30Thu
1 stopAmerican Airlines
7h 52mBHM-ONT
$382
5/30Thu
2 stopsAmerican Airlines
12h 49mBHM-ONT
$387
5/23Thu
1 stopAmerican Airlines
6h 17mBHM-ONT
$388
6/16Sun
2 stopsAmerican Airlines
8h 19mBHM-ONT
$424
6/16Sun
1 stopUnited Airlines
9h 33mBHM-ONT
$426

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Last minute flights from Birmingham to Ontario

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Birmingham to Ontario that are departing in the next 10 days.
5/14Tue
multi-stopDelta
8h 20mBHM-ONT
5/17Fri
multi-stopDelta
6h 28mONT-BHM
$752
5/14Tue
multi-stopDelta
10h 45mBHM-ONT
5/17Fri
multi-stopDelta
6h 28mONT-BHM
$757
5/16Thu
multi-stopUnited Airlines
7h 40mBHM-ONT
5/20Mon
multi-stopUnited Airlines
6h 48mONT-BHM
$776
5/14Tue
multi-stopAmerican Airlines
9h 44mBHM-ONT
5/17Fri
multi-stopAmerican Airlines
9h 01mONT-BHM
$783

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Birmingham - Ontario Flights

Departure:

Birmingham (undefined)United States

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Birmingham

Cabin classes: