Cheap Flights from Birmingham to Ontario International from $586

Compare Birmingham to Ontario International flight deals

Find the cheapest month or even day of the year to fly to Ontario International

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Flight deals from Birmingham to Ontario International

Looking for a cheap last-minute deal or the best return flight from Birmingham to Ontario International? Find the lowest prices on one-way and return tickets right here.

Ontario.$587 per passenger.Departing Tue, 17 Feb, returning Tue, 24 Feb.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Birmingham on Tue, 17 Feb, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Tue, 24 Feb, arriving in Birmingham.Price includes taxes and charges.From $587, select.

Ontario.$627 per passenger.Departing Sun, 18 Jan, returning Tue, 27 Jan.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Birmingham on Sun, 18 Jan, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Tue, 27 Jan, arriving in Birmingham.Price includes taxes and charges.From $627, select.

Ontario.$638 per passenger.Departing Tue, 3 Mar, returning Fri, 6 Mar.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Birmingham on Tue, 3 Mar, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Fri, 6 Mar, arriving in Birmingham.Price includes taxes and charges.From $638, select.

Ontario.$647 per passenger.Departing Wed, 29 Jul, returning Wed, 5 Aug.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Birmingham on Wed, 29 Jul, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Wed, 5 Aug, arriving in Birmingham.Price includes taxes and charges.From $647, select.

Ontario.$698 per passenger.Departing Tue, 7 Apr, returning Fri, 17 Apr.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Birmingham on Tue, 7 Apr, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Fri, 17 Apr, arriving in Birmingham.Price includes taxes and charges.From $698, select.

Ontario.$735 per passenger.Departing Thu, 11 Jun, returning Tue, 16 Jun.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Birmingham on Thu, 11 Jun, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Tue, 16 Jun, arriving in Birmingham.Price includes taxes and charges.From $735, select.

Ontario.$775 per passenger.Departing Sun, 25 Jan, returning Sun, 1 Feb.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Birmingham on Sun, 25 Jan, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Sun, 1 Feb, arriving in Birmingham.Price includes taxes and charges.From $775, select.

Ontario.$1,072 per passenger.Departing Mon, 29 Dec, returning Thu, 1 Jan.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Birmingham on Mon, 29 Dec, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departs from Ontario International on Thu, 1 Jan, arriving in Birmingham.Price includes taxes and charges.From $1,072, select.

Find the cheapest month to fly from Birmingham to Ontario International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Birmingham to Ontario International flights are currently cheapest in February.

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Birmingham to Ontario International: Alternative routes

Compare routes from Birmingham to Ontario below. You may find an airport to fly into that's cheaper, faster, or easier than Ontario International.

Birmingham to Ontario: Flight information

The things to know before you go.

Cheapest flight found	$586
Cheapest month to fly	February

Finding cheap flights from Birmingham to Ontario International: Frequently asked questions

How much are return flights from Birmingham to Ontario International?

The best price we found for a return flight from Birmingham to Ontario International is $586. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Birmingham to Ontario International?

Currently, there are no airlines that fly direct from Birmingham to Ontario International. But we found flights with one or more stops from $587.

How many flights are there a week from Birmingham to Ontario International?

As of December 2025, there are no flights flying from Birmingham to Ontario International.

When is the cheapest time to fly from Birmingham to Ontario International?

The cheapest month to fly from Birmingham to Ontario International is usually February.

Which upcoming date is cheapest to fly from Birmingham Airport to Ontario International Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Birmingham Airport to Ontario International Airport on Tuesday, 17 February 2026.

Can I get a direct flight from Birmingham Airport to Ontario International Airport?

No airlines currently offer direct flights between Birmingham Airport and Ontario International Airport. Most routes have one or more stops.

How can I find the best flight deal to Ontario International?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Ontario International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Ontario?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Ontario is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Birmingham Airport to Ontario International with?

Currently, Southwest Airlines offers the cheapest flight tickets to Ontario International.

Travelling from Birmingham-Shuttlesworth International Airport (BHM) to Ontario International Airport (ONT): what you need to know

Ontario is two hours behind Birmingham and is in the UTC-7 timezone.
To ensure you get on your BHM to ONT flight, leave enough time to check in and find your gate. Turning up two hours before international departures and an hour before domestic flights is the general travel rule.
During popular months such as July, you'll want to get to the airport even earlier. Plan to arrive two hours before domestic departures and four hours ahead of an international flight when you travel during a peak period in general.
We make it easy to book a flight with a stopover. To see your options for tickets from Birmingham-Shuttlesworth International Airport to Ontario International Airport, uncheck 'Direct flights only.' Then, pick a flight offering a stop long enough to visit your chosen city. Worthwhile stopovers between BHM and ONT include:
- Dallas/Fort Worth International Airport
- Phoenix Sky Harbour International Airport
- Harry Reid Airport (formerly McCarran Airport)

How to find the cheapest flights from Birmingham-Shuttlesworth International Airport (BHM) to Ontario International Airport (ONT)

Right now, $262 is the lowest price we've found for a one-way Birmingham-Shuttlesworth International Airport to Ontario International Airport flight. The best price for a return ticket is $586. Remember that fares may change due to demand when booking.
Don't leave everything to the last minute. You're more likely to find cheap tickets from BHM to ONT if you book ahead. Airlines often offer some excellent early bird rates.
The 'Whole month' search function shows you the cheapest flights from Birmingham-Shuttlesworth International Airport to Ontario International Airport across the entire month. It's a good way to snap up a bargain if your dates aren't set in stone.
You won't have to check every day to see if fares have dropped when you set up a Price Alert. We'll send you an update the moment there's a better deal on cheap flights from BHM to ONT.
Choose your preferred arrival and departure times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to find the best deals on flights from Birmingham-Shuttlesworth International Airport to Ontario International Airport.

Handy information about Birmingham-Shuttlesworth International Airport (BHM)

BHM's address is 5900 Airport Highway.
Birmingham-Shuttlesworth International Airport scores top marks for its on-time performance. 80.37% of flights that depart BHM arrive at their destination on time.
Central Birmingham to Birmingham-Shuttlesworth International Airport is around 10 kilometres. Depending on traffic, it'll take you about 10 minutes to get there if you're ride-sharing, catching a cab or driving.
Booked an early flight from Birmingham-Shuttlesworth International Airport to Ontario International Airport? Avoid the hassle of rushing to the terminal (and get some extra shut-eye) by picking one of these stays close to BHM:

Arriving at Ontario International Airport (ONT)

If you have a late Birmingham-Shuttlesworth International Airport to Ontario International Airport flight, nothing beats the convenience of being near the terminal. Collect your bags from the carousel and then be tucked up in bed shortly after at one of these hotels near ONT:
Pick up an Ontario International Airport rental car and explore Ontario and beyond with your own set of wheels. Dollar, Fox - Rent A Car and Thrifty are top providers to choose from here.
For the lowest price, book your ride from Ontario International Airport about three weeks before your trip.

Getting from Ontario International Airport (ONT) to central Ontario

You'll find ONT at 2900 E. Airport Drive.
Ontario International Airport is roughly 6 kilometres from the centre of Ontario. The drive time takes around 10 minutes.
If you're travelling by public transport, expect a journey of around 1 hour 30 minutes.

When to fly to Ontario International Airport (ONT)

August is the most popular month for flights from Birmingham-Shuttlesworth International Airport to Ontario International Airport. For a quieter experience, head to Ontario in May.
When booking your flight from Birmingham-Shuttlesworth International Airport to Ontario International Airport, think about the type of weather you enjoy. August is the warmest month in Ontario, with temperatures ranging from 15ºC to 35ºC.
If you want cooler conditions, search for a cheap ticket from BHM to ONT in January. Temperatures average between 4ºC and 23ºC then.

Explore more of United States

You've done Ontario, now it's time to explore other corners of United States. Travel around 56 kilometres west to Los Angeles to tick off its popular sights. From Griffith Observatory to The Broad and La Brea Tar Pits & Museum, your itinerary will be busy.
Around 153 kilometres south of Ontario, San Diego is another essential stop in United States. Experience major highlights starting with San Diego Zoo, USS Midway Museum and SeaWorld San Diego.