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Cheap flights from Ontario to Baton Rouge from $242

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Baton Rouge departing on 10/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Baton Rouge

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
2:22 pm - 10:56 pmONT  Ontario-BTR Baton Rouge Ryan
6h 34m1 stop Dallas/Fort Worth
American Airlines Logo
2:29 pm - 6:44 pmBTR  Baton Rouge Ryan-ONT Ontario
6h 15m1 stop Dallas/Fort Worth
$359American Airlines
Thu, Oct 22 - Sat, Oct 24
American Airlines Logo
12:42 pm - 9:48 pmONT  Ontario-BTR Baton Rouge Ryan
7h 06m1 stop Dallas/Fort Worth
American Airlines Logo
5:26 pm - 10:45 pmBTR  Baton Rouge Ryan-ONT Ontario
7h 19m1 stop Dallas/Fort Worth
$359American Airlines
Tue, Nov 17 - Wed, Jan 6
Delta Logo
12:18 pm - 8:53 pmONT  Ontario-BTR Baton Rouge Ryan
6h 35m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 11:10 amBTR  Baton Rouge Ryan-ONT Ontario
7h 10m1 stop Atlanta Hartsfield-Jackson
$359Delta
Sat, Nov 7 - Wed, Nov 11
Delta Logo
12:22 pm - 10:02 pmONT  Ontario-BTR Baton Rouge Ryan
7h 40m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 11:10 amBTR  Baton Rouge Ryan-ONT Ontario
7h 10m1 stop Atlanta Hartsfield-Jackson
$359Delta
Wed, Nov 11 - Sun, Nov 15
American Airlines Logo
2:27 pm - 10:55 pmONT  Ontario-BTR Baton Rouge Ryan
6h 28m1 stop Dallas/Fort Worth
American Airlines Logo
8:08 am - 1:53 pmBTR  Baton Rouge Ryan-ONT Ontario
7h 45m1 stop Dallas/Fort Worth
$359American Airlines
Tue, Sep 1 - Sat, Sep 5
Delta Logo
12:22 pm - 10:02 pmONT  Ontario-BTR Baton Rouge Ryan
7h 40m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 11:10 amBTR  Baton Rouge Ryan-ONT Ontario
7h 10m1 stop Atlanta Hartsfield-Jackson
$359Delta
Wed, Nov 11 - Sat, Nov 14
Delta Logo
12:17 pm - 8:49 pmONT  Ontario-BTR Baton Rouge Ryan
6h 32m1 stop Atlanta Hartsfield-Jackson
Delta Logo
1:32 pm - 6:41 pmBTR  Baton Rouge Ryan-ONT Ontario
7h 09m1 stop Atlanta Hartsfield-Jackson
$360Delta
Sat, Sep 19 - Sat, Sep 26
Delta Logo
7:00 am - 6:19 pmONT  Ontario-BTR Baton Rouge Ryan
9h 19m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 4:12 pmBTR  Baton Rouge Ryan-ONT Ontario
12h 12m2 stops Atlanta Hartsfield-Jackson Salt Lake City
$364Delta
Tue, Nov 17 - Wed, Jan 6
Delta Logo
11:15 pm - 9:34 amONT  Ontario-BTR Baton Rouge Ryan
8h 19m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 11:06 amBTR  Baton Rouge Ryan-ONT Ontario
7h 06m1 stop Atlanta Hartsfield-Jackson
$373Delta
Fri, Oct 23 - Wed, Oct 28
American Airlines Logo
7:05 am - 5:43 pmONT  Ontario-BTR Baton Rouge Ryan
8h 38m1 stop Dallas/Fort Worth
American Airlines Logo
8:08 am - 11:43 amBTR  Baton Rouge Ryan-ONT Ontario
5h 35m1 stop Dallas/Fort Worth
$394American Airlines
Tue, Sep 1 - Sat, Sep 5

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United Airlines flights from Ontario to Baton Rouge

Our best United Airlines deals on Ontario to Baton Rouge flight tickets
United Airlines
Aug 29
ONT8:00 amOntario
11h 28m
2 stops
BTR9:28 pmBaton Rouge Ryan
Sep 2
BTR9:35 amBaton Rouge Ryan
12h 26m
2 stops
ONT8:01 pmOntario
$439
United Airlines
Sep 22
ONT6:00 amOntario
7h 30m
1 stop
BTR3:30 pmBaton Rouge Ryan
Sep 26
BTR4:07 pmBaton Rouge Ryan
7h 52m
1 stop
ONT9:59 pmOntario
$459
United Airlines
Sep 22
ONT6:00 amOntario
7h 30m
1 stop
BTR3:30 pmBaton Rouge Ryan
Sep 26
BTR1:55 pmBaton Rouge Ryan
11h 04m
2 stops
ONT10:59 pmOntario
$464

American Airlines flights from Ontario to Baton Rouge

Our best American Airlines deals on Ontario to Baton Rouge flight tickets
American Airlines
Sep 1
ONT7:05 amOntario
8h 38m
1 stop
BTR5:43 pmBaton Rouge Ryan
Sep 5
BTR8:08 amBaton Rouge Ryan
5h 35m
1 stop
ONT11:43 amOntario
$394
American Airlines
Oct 22
ONT2:22 pmOntario
6h 34m
1 stop
BTR10:56 pmBaton Rouge Ryan
Oct 24
BTR5:50 amBaton Rouge Ryan
11h 26m
2 stops
ONT3:16 pmOntario
$397
American Airlines
Sep 1
ONT6:15 amOntario
11h 51m
2 stops
BTR8:06 pmBaton Rouge Ryan
Sep 5
BTR8:08 amBaton Rouge Ryan
7h 45m
1 stop
ONT1:53 pmOntario
$424

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Baton Rouge 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, momondo users made 832,500 searches. Data last updated August 15, 2026.
Use the filters below to find and compare flights from Ontario to Baton Rouge that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

OntarioBaton Rouge

ONT Ontario - BTR Baton Rouge Ryan

ONTBTR

Ontario

Thu 10/22

2:22 pm-10:56 pm

1 stop6h 34m

Baton Rouge Ryan

Sat 10/24

2:29 pm-6:44 pm

1 stop6h 15m

$359

OntarioBaton Rouge

ONT Ontario - BTR Baton Rouge Ryan

ONTBTR

Ontario

Tue 11/17

12:42 pm-9:48 pm

1 stop7h 06m

Baton Rouge Ryan

Wed 1/6

5:26 pm-10:45 pm

1 stop7h 19m

$359

OntarioBaton Rouge

ONT Ontario - BTR Baton Rouge Ryan

ONTBTR

Ontario

Sat 11/7

12:18 pm-8:53 pm

1 stop6h 35m

Baton Rouge Ryan

Wed 11/11

6:00 am-11:10 am

1 stop7h 10m

$359

OntarioBaton Rouge

ONT Ontario - BTR Baton Rouge Ryan

ONTBTR

Ontario

Wed 11/11

12:22 pm-10:02 pm

1 stop7h 40m

Baton Rouge Ryan

Sun 11/15

6:00 am-11:10 am

1 stop7h 10m

$359

OntarioBaton Rouge

ONT Ontario - BTR Baton Rouge Ryan

ONTBTR

Ontario

Tue 9/1

2:27 pm-10:55 pm

1 stop6h 28m

Baton Rouge Ryan

Sat 9/5

8:08 am-1:53 pm

1 stop7h 45m

$359

OntarioBaton Rouge

ONT Ontario - BTR Baton Rouge Ryan

ONTBTR

Ontario

Wed 11/11

12:22 pm-10:02 pm

1 stop7h 40m

Baton Rouge Ryan

Sat 11/14

6:00 am-11:10 am

1 stop7h 10m

$359

OntarioBaton Rouge

ONT Ontario - BTR Baton Rouge Ryan

ONTBTR

Ontario

Sat 9/19

12:17 pm-8:49 pm

1 stop6h 32m

Baton Rouge Ryan

Sat 9/26

1:32 pm-6:41 pm

1 stop7h 09m

$360

OntarioBaton Rouge

ONT Ontario - BTR Baton Rouge Ryan

ONTBTR

Ontario

Tue 11/17

7:00 am-6:19 pm

1 stop9h 19m

Baton Rouge Ryan

Wed 1/6

6:00 am-4:12 pm

2 stops12h 12m

$364

OntarioBaton Rouge

ONT Ontario - BTR Baton Rouge Ryan

ONTBTR

Ontario

Fri 10/23

11:15 pm-9:34 am

1 stop8h 19m

Baton Rouge Ryan

Wed 10/28

6:00 am-11:06 am

1 stop7h 06m

$373

OntarioBaton Rouge

ONT Ontario - BTR Baton Rouge Ryan

ONTBTR

Ontario

Tue 9/1

7:05 am-5:43 pm

1 stop8h 38m

Baton Rouge Ryan

Sat 9/5

8:08 am-11:43 am

1 stop5h 35m

$394

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Baton Rouge from

How to get the cheapest flight ticket from Ontario to Baton Rouge

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Baton Rouge?

In general, November is the cheapest month to fly from Ontario to Baton Rouge. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $364. If you’re not able to fly to Baton Rouge in November, then February is your next best option. Flight prices from Ontario to Baton Rouge during February average around $395.

Can stopping save me money on Ontario to Baton Rouge flights?

You could potentially save up to 30% on your flight if you consider stops on a Ontario to Baton Rouge flight.

When to book flights from Ontario to Baton Rouge

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Baton Rouge according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Baton Rouge (ONT to BTR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Baton Rouge

Fastest flight time

6h 32m

Direct flights

None
The fastest flight from Ontario to Baton Rouge takes 6h 32m
There are no direct flights from Ontario to Baton Rouge. There are no popular flight routes from Ontario to Baton Rouge.
Search flight deals

Frequently asked questions about flying from Ontario to Baton Rouge

  • How far is Ontario to Baton Rouge Ryan by plane?

    The distance between Ontario and Baton Rouge Ryan is about 1560.7 mi. By plane, this route typically takes 6h 32m.

  • When did momondo last update prices for flights from Ontario Airport to Baton Rouge Ryan Airport?

    Prices for flights from Ontario Airport to Baton Rouge Ryan Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Ontario Airport to Baton Rouge Ryan Airport?

  • How old do you have to be to fly from Ontario Airport to Baton Rouge Ryan Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Baton Rouge Ryan Airport.

  • What documentation or ID do you need to fly to Baton Rouge Ryan Airport?

    The required travel and health documents for your Baton Rouge Ryan Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Baton Rouge Ryan Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Ontario to Baton Rouge?

Best airlines flying from Ontario to Baton Rouge

Compare and see reviews for airlines that fly from Ontario to Baton Rouge with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $333Free CancellationRating
7.1
11,941 reviews
Search American Airlines flights

Traveling to a place near Baton Rouge?

Book flights to Baton Rouge if you plan to visit one of these locations
Denham Springs
Port Allen
McComb
Saint Francisville

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Baton Rouge?

It is quick and easy to find Ontario to Baton Rouge flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Baton Rouge that suits you.

Can I find flights from Ontario to Baton Rouge with flexible booking policies on momondo?

All flight searches from Ontario to Baton Rouge on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Baton Rouge?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Baton Rouge from Ontario.

I’m not ready to book a flight from Ontario to Baton Rouge right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Baton Rouge, momondo offers a useful price alert feature which will track prices for flights to Baton Rouge from Ontario and alert you when they change.

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