Cheap Flights from Ontario International to Baton Rouge Ryan

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Compare Ontario International to Baton Rouge Ryan flight deals

Find the cheapest month or even day of the year to fly to Baton Rouge Ryan

Book the best Baton Rouge Ryan fare with no extra fees

Flight deals Cheapest month Find the best route Route info FAQs Tips and advice

Flight deals from Ontario International to Baton Rouge Ryan

Looking for a cheap last-minute deal or the best return flight from Ontario International Airport to Baton Rouge Ryan Airport? If you want to travel next month, return fares start from $770. Find the lowest prices on one-way and return tickets right here.

Baton Rouge.$770 per passenger.Departing Mon, 5 Oct, returning Sun, 11 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Ontario International on Mon, 5 Oct, arriving in Baton Rouge Ryan.Inbound indirect flight with Delta, departs from Baton Rouge Ryan on Sun, 11 Oct, arriving in Ontario International.Price includes taxes and charges.From $770, select.

Baton Rouge.$881 per passenger.Departing Wed, 16 Sep, returning Sun, 20 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Ontario International on Wed, 16 Sep, arriving in Baton Rouge Ryan.Inbound indirect flight with Delta, departs from Baton Rouge Ryan on Sun, 20 Sep, arriving in Ontario International.Price includes taxes and charges.From $881, select.

Find the cheapest month to fly from Ontario International to Baton Rouge Ryan

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

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Ontario International to Baton Rouge Ryan: Alternative routes

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

Baton Rouge Ryan

8km from central Baton Rouge

ClosestCheapest

from $771

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Lafayette

86km from central Baton Rouge

from $843

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Ontario to Baton Rouge: Flight information

The things to know before you go.

Cheapest flight found	$770
Cheapest month to fly	October

Finding cheap flights from Ontario International to Baton Rouge Ryan: Frequently asked questions

How much are return flights from Ontario International to Baton Rouge Ryan?

The best price we found for a return flight from Ontario International to Baton Rouge Ryan is $770. 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 Ontario International to Baton Rouge Ryan?

Currently, there are no airlines that fly direct from Ontario International to Baton Rouge Ryan. But we found flights with one or more stops from $771.

How many flights are there a week from Ontario International to Baton Rouge Ryan?

As of September 2026, there are no flights flying from Ontario International to Baton Rouge Ryan.

When is the cheapest time to fly from Ontario International to Baton Rouge Ryan?

The cheapest month to fly from Ontario International to Baton Rouge Ryan is usually October.

Which upcoming date is cheapest to fly from Ontario International Airport to Baton Rouge Ryan Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ontario International Airport to Baton Rouge Ryan Airport on Monday, 5 October 2026.

Can I get a direct flight from Ontario International Airport to Baton Rouge Ryan Airport?

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

How can I find the best flight deal to Baton Rouge Ryan?

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 Baton Rouge Ryan 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 Baton Rouge?

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

Which is the cheapest airline to fly from Ontario International Airport to Baton Rouge Ryan with?

Currently, Delta offers the cheapest flight tickets to Baton Rouge Ryan.

Flying from Ontario International Airport (ONT) to Baton Rouge Ryan Airport (BTR): what you need to know

Your ONT to BTR flight won't wait if you're running late, so get to the airport with time to spare. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.
You'll likely experience longer lines during popular months such as July. Arriving up to four hours in advance for an international flight and two hours for domestic departures will give you ample time for security and boarding.
We make it a cinch to book a flight with a stopover. To see your options for tickets from Ontario International Airport to Baton Rouge Ryan Airport, uncheck 'Direct flights only.' Then, pick a flight offering a stop long enough to visit your chosen city. Stopovers between ONT and BTR include:
- Atlanta Hartsfield-Jackson Airport
- Dallas Fort Worth International Airport
- Houston George Bush Intercntl. Airport

How to find the cheapest flights from Ontario International Airport (ONT) to Baton Rouge Ryan Airport (BTR)

The cheapest price we've seen for a one-way Ontario International Airport to Baton Rouge Ryan Airport flight is $403. A return ticket is currently $771. Depending on the availability when you book, these fares can change.
Don't leave everything to the last moment. You're more likely to find cheap tickets from ONT to BTR if you book early. Airlines often have some excellent early bird rates.
Getting cheap flights from Ontario International Airport to Baton Rouge Ryan Airport is easier if you're flexible with your dates. Use the 'Whole month' search function to see the lowest prices across each month and snap up a great deal.
Getting your hands on cheap flights from ONT to BTR couldn't be easier with Price Alerts. Simply set up one of these automatic alerts and we'll notify you as soon as a new discounted fare appears.
Select your preferred departure and arrival times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to see the best deals on flights from Ontario International Airport to Baton Rouge Ryan Airport.

Handy information about Ontario International Airport (ONT)

The address for ONT is 2900 E. Airport Drive.
Ontario International Airport has an excellent on-time performance, reducing your chances of a delayed flight. Departures from ONT land at their destination as scheduled 83% of the time.
Central Ontario to Ontario International Airport is around 10 kilometres. Depending on traffic, it'll take you about 15 minutes to get there if you're ride-sharing, catching a taxi or driving.
Expect a journey time of around 45 minutes on public transport.
Have an early flight from Ontario International Airport to Baton Rouge Ryan Airport? Avoid the last-minute rush to the airport (and catch some extra z's) by picking one of these hotels near ONT:

Arriving at Baton Rouge Ryan Airport (BTR)

Reserve a hotel close to BTR if you have a late Ontario International Airport to Baton Rouge Ryan Airport flight. Select one of these accommodation options and skip the long transfer:
Travel at your own pace with a Baton Rouge Ryan Airport rental car. Pick up a set of wheels from Budget, Hertz or Enterprise and see more of Baton Rouge and beyond.
Get the best deal by reserving your vehicle from Baton Rouge Ryan Airport around four weeks ahead of your departure.

Getting from Baton Rouge Ryan Airport (BTR) to central Baton Rouge

The address for BTR is 9430 Jackie Cochran Drive.
Baton Rouge Ryan Airport is roughly 13 kilometres from the centre of Baton Rouge. The drive time takes about 20 minutes.
When travelling by public transport, expect a journey time of around 45 minutes.

When to fly to Baton Rouge Ryan Airport (BTR)

It's time to pick your dates for your flight from Ontario International Airport to Baton Rouge Ryan Airport. October is the most popular month to head to Baton Rouge. If you'd like a more relaxed vibe, go in March.
The warmest month in Baton Rouge is August, with temperatures ranging between 22ºC and 39ºC. Lock in your flights from Ontario International Airport to Baton Rouge Ryan Airport in this month if this is the type of weather you like.
If you'd rather travel in cooler conditions, search for a cheap ticket from ONT to BTR in January. Temperatures average between 1ºC and 19ºC then.

Explore more of the United States

Houston is just one of the many cities in the United States waiting to be discovered after you've seen Baton Rouge. Around 402 kilometres away to the west, its top attractions include The Museum of Fine Arts, Houston, Beck Building, Houston Museum of Natural Science and The Menil Collection.
If you're looking to explore another major destination in the United States, head for New Orleans, roughly 121 kilometres south-east of Baton Rouge. Bourbon St, French Quarter and Cafe Du Monde are the start of reasons to visit.