ONT - BHM

$185 Find Cheap Flights from Ontario to Birmingham

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Birmingham departing on 4/1. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Birmingham

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Birmingham, 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 Ontario to Birmingham, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$377
Overall average: $411
Delta
Tue 7/28Wed 7/29
ONT - BHM • 1 stop
Cheapest one-way
$185
Typical prices: $359-$407
Southwest
Wed 4/1
ONT - BHM • 1 stop
Top airlines
Cheapest • from $369 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Ontario and Birmingham. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $365 (round-trip)
Shortest trip • 5h 25m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 26% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Birmingham!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Birmingham (ONT-BHM)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Birmingham 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Birmingham

Tue, Jul 28 - Wed, Jul 29
Delta Logo
7:00 am - 4:41 pm
ONT
-
BHM
7h 41m
1 stop
Delta Logo
5:30 pm - 10:09 pm
BHM
-
ONT
6h 39m
1 stop
$377Delta
Thu, Jul 16 - Tue, Jul 21
United Airlines Logo
5:00 am - 2:03 pm
ONT
-
BHM
7h 03m
1 stop
United Airlines Logo
3:40 pm - 8:42 pm
BHM
-
ONT
7h 02m
1 stop
$407United Airlines
Thu, May 14 - Sun, May 17
Southwest Logo
12:40 pm - 8:25 pm
ONT
-
BHM
5h 45m
1 stop
Southwest Logo
5:00 am - 9:50 am
BHM
-
ONT
6h 50m
1 stop
$408Southwest
Thu, Jul 16 - Tue, Jul 21
Southwest Logo
8:35 am - 6:05 pm
ONT
-
BHM
7h 30m
2 stops
Southwest Logo
5:25 am - 9:35 am
BHM
-
ONT
6h 10m
1 stop
$412Southwest
Thu, May 14 - Sun, May 17
Southwest Logo
12:40 pm - 8:25 pm
ONT
-
BHM
5h 45m
1 stop
Southwest Logo
5:55 pm - 12:05 am
BHM
-
ONT
8h 10m
2 stops
$413Southwest
Tue, Apr 28 - Wed, Apr 29
United Airlines Logo
5:10 am - 2:56 pm
ONT
-
BHM
7h 46m
1 stop
United Airlines Logo
3:41 pm - 8:36 pm
BHM
-
ONT
6h 55m
1 stop
$417United Airlines
Mon, Apr 6 - Mon, Apr 13
American Airlines Logo
11:59 pm - 8:59 am
ONT
-
BHM
7h 00m
1 stop
American Airlines Logo
7:08 pm - 11:46 pm
BHM
-
ONT
6h 38m
1 stop
$429American Airlines
Sat, Apr 25 - Wed, Apr 29
United Airlines Logo
7:00 am - 5:35 pm
ONT
-
BHM
8h 35m
1 stop
United Airlines Logo
4:55 pm - 9:50 pm
BHM
-
ONT
6h 55m
1 stop
$437United Airlines
Fri, May 15 - Sun, May 17
Southwest Logo
12:40 pm - 8:25 pm
ONT
-
BHM
5h 45m
1 stop
Southwest Logo
3:40 pm - 12:10 am
BHM
-
ONT
10h 30m
1 stop
$442Southwest
Fri, May 15 - Sun, May 17
Southwest Logo
12:50 pm - 11:25 pm
ONT
-
BHM
8h 35m
2 stops
Southwest Logo
5:55 pm - 12:05 am
BHM
-
ONT
8h 10m
2 stops
$447Southwest
Booking Insights

KAYAK's insights & trends for Ontario to Birmingham flights

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Birmingham, 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 Ontario to Birmingham is February, where tickets cost $340 (return) on average. On the other hand, the most expensive months are November and October, where the average cost of round-trip tickets is $752 and $577 respectively.

Good to know

Low seasonFebruary
Cheapest flight$185
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Ontario to Birmingham

When to book flights from Ontario to Birmingham

Are your dates flexible? Find out the best times to travel from Ontario to Birmingham 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 Ontario to Birmingham

  • What is the cheapest flight from Ontario to Birmingham?

    In the last 3 days, the lowest price for a flight from Ontario to Birmingham was $185 for a one-way ticket and $369 for a round-trip.

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

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

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

    Ontario airport is called Ontario and the only airport in Birmingham is Birmingham.

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

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

  • Which airline alliances offer flights from Ontario to Birmingham?

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

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

    The two airlines most popular with KAYAK users for flights from Ontario to Birmingham are Southwest and Delta. With an average price for the route of $465 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $402 and an overall rating of 7.9.

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

    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 Ontario to Birmingham.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Birmingham from Ontario 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 Ontario to Birmingham?

    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 Birmingham with an airline and back to Ontario with another airline. Booking your flights between Ontario and BHM 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 Ontario to Birmingham?

    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 Birmingham from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Ontario to Birmingham

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Birmingham. 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 Ontario to Birmingham? 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
SouthwestOverall score based on 4317 reviews
8.1Boarding
7.5Entertainment
8.0Comfort
7.0Food
8.6Crew
Airline reviews

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

8.0 ExcellentTobin, Mar 2026
SJC - BUR
Read more Southwest reviews

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

The Southwest experience has definitely taken a dive from its early days. You can no longer deferentiate from other airlines. Air travel is too expensive. Southwest is no longer budget friendly. They have lost me as a loyal customer.

The charges were ridiculous for an hour flight and the turbulence was very scary.

The seats are now more narrow. I paid for front row the seats in the front are even more narrow than before.

The wifi on the plane is great. The only issue that I have is that I prefer an aisle seat and on my trips this week, I was either in the middle or window. If we can work to secure aisle seating, I will be thrilled. Nice trip.

Great flight but super high price. Glad it was a business trip and not personal

3 hour delay. Had to change plans and was still delayed.

We got exit row seats both flights. Everything was running on time

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

The crew, and fellow passengers, were super gracious and kind. There seemed to be plenty of bin space even though the plane was full. It’s nice to get a glass of wine with dinner in Premiere seating, and there was a lot of food.

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

Awesome! On time flight, early arrival, and a complimentary upgrade!

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

The flight was delayed for about 2 hrs. Other than it, it was good.

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

They are rarely on time! Very hard to plan your travels when flights or connections keep getting delayed.

My seat was assigned last row behind restrooms No legroom’s I’m very Pettit Still was not comfortable Food choice was excellent

The chicken wrap was tiny ($13 for what looked like a 1/3 of a normal wrap?) and disgusting.

Mediocre would be best description. Food bland. Seat biz class uncomfortable to sleep. Crew never dimmed lights completely in an overnight flight to Europe. Would avoid AA if possible.

Small plane, poor meal choices for first class, bad terminal and boarding experience at LAX

Massimo, flight attendant was very authentic, attentive - wonderful. Food/wrap was just okay.

Experience was great. The best part is the free Wi-Fi connection which helps me to work on the flight

The flight was fine. It's the satellite terminal that supports American eagle flights is what sucks. There is only one food option and everything there is way overpriced. I mean I know it's airport pricing, but it's even crazier than that. I bought a sandwich in a plastic container for $18.

The flight was really crowded. Flight attendants were just ok.

Flight was delayed for 2 hours, then last minute the change to on time. The satélite location is far and a nightmare to get to.

Everything you need to know for your flight from Ontario to Birmingham

Information on your arrival and departure airports