What is the cheapest airline that flies from Ontario to Louisiana?

Delta, United Airlines, and American Airlines are the most popular carriers operating from Ontario to Louisiana

What airlines fly to Louisiana?

Delta, Breeze Airways and American Airlines are the top three most popular airlines that fly to Louisiana from Ontario according to our data. Delta is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Louisiana. Keep in mind that there are 7 different airlines that fly to Louisiana on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ontario Airport to Louisiana?

Prices for flights from Ontario Airport to Louisiana were last updated today.

How many operators does momondo search for flights from Ontario Airport to Louisiana?

As of June 2026, there are 5 operators available to choose from for flights from Ontario Airport to Louisiana.

How old do you have to be to fly from Ontario Airport to Louisiana?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Louisiana.

What documentation or ID do you need to fly to Louisiana?

The travel and health documents required for your trip to Louisiana can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Louisiana. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$127 Cheap Flights from Ontario to Louisiana in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Louisiana

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:07 am - 5:08 pm

ONT

MSY

7h 01m

1 stop

3:35 pm - 11:55 pm

MSY

ONT

10h 20m

1 stop

$261Frontier

Sat, Sep 12 - Mon, Sep 14

10:49 am - 9:03 pm

ONT

MSY

8h 14m

1 stop

9:48 pm - 10:04 am

MSY

ONT

14h 16m

1 stop

$264Frontier

Thu, Aug 13 - Mon, Aug 17

2:58 pm - 5:10 am

ONT

MSY

12h 12m

1 stop

3:35 pm - 11:55 pm

MSY

ONT

10h 20m

1 stop

$280Multiple Airlines

Wed, Oct 21 - Sat, Oct 24

3:40 pm - 12:08 pm

ONT

SHV

18h 28m

1 stop

3:26 pm - 8:03 am

SHV

ONT

18h 37m

2 stops

$323Multiple Airlines

Thu, Jul 16 - Mon, Jul 20

5:00 am - 2:18 pm

ONT

SHV

7h 18m

1 stop

5:56 pm - 9:55 pm

SHV

ONT

5h 59m

1 stop

$329United Airlines

Thu, Jul 16 - Mon, Jul 20

11:59 pm - 10:22 am

ONT

LFT

8h 23m

1 stop

8:03 pm - 11:59 pm

LFT

ONT

5h 56m

1 stop

$349American Airlines

Thu, Jul 16 - Sun, Jul 19

10:59 pm - 9:41 am

ONT

BTR

8h 42m

1 stop

6:00 am - 11:27 am

BTR

ONT

7h 27m

1 stop

$349Delta

Wed, Dec 2 - Tue, Dec 8

12:33 pm - 8:06 pm

ONT

BTR

5h 33m

1 stop

6:00 am - 9:34 am

BTR

ONT

5h 34m

1 stop

$377American Airlines

Sat, Aug 8 - Sat, Aug 15

6:00 am - 3:28 pm

ONT

AEX

7h 28m

1 stop

4:06 pm - 9:50 pm

AEX

ONT

7h 44m

1 stop

$408United Airlines

Tue, Oct 27 - Sat, Oct 31

12:00 pm - 10:01 pm

ONT

BTR

8h 01m

1 stop

3:20 pm - 10:14 pm

BTR

ONT

8h 54m

1 stop

$414Delta

Thu, Dec 3 - Tue, Dec 8

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Frontier flights from Ontario to Louisiana

Our best Frontier deals on Ontario to Louisiana flight tickets

Frontier

Sep 12

ONT8:07 amOntario

7h 01m

1 stop

MSY5:08 pmNew Orleans Louis Armstrong

Sep 14

MSY3:35 pmNew Orleans Louis Armstrong

10h 20m

1 stop

ONT11:55 pmOntario

$261

Frontier

Aug 13

ONT10:49 amOntario

8h 14m

1 stop

MSY9:03 pmNew Orleans Louis Armstrong

Aug 17

MSY9:48 pmNew Orleans Louis Armstrong

14h 16m

1 stop

ONT10:04 amOntario

$264

Frontier

Aug 6

ONT10:49 amOntario

8h 14m

1 stop

MSY9:03 pmNew Orleans Louis Armstrong

Aug 9

MSY9:48 pmNew Orleans Louis Armstrong

14h 16m

1 stop

ONT10:04 amOntario

$273

Delta flights from Ontario to Louisiana

Our best Delta deals on Ontario to Louisiana flight tickets

Delta

Dec 2

ONT10:59 pmOntario

8h 42m

1 stop

BTR9:41 amBaton Rouge Ryan

Dec 8

BTR6:00 amBaton Rouge Ryan

7h 27m

1 stop

ONT11:27 amOntario

$349

Delta

Dec 3

ONT12:00 pmOntario

8h 01m

1 stop

BTR10:01 pmBaton Rouge Ryan

Dec 8

BTR3:20 pmBaton Rouge Ryan

8h 54m

1 stop

ONT10:14 pmOntario

$414

Delta

Jul 3

ONT6:00 amOntario

5h 49m

1 stop

MSY1:49 pmNew Orleans Louis Armstrong

Jul 4

MSY10:41 amNew Orleans Louis Armstrong

9h 49m

1 stop

ONT6:30 pmOntario

$415

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Sat 9/12

8:07 am-5:08 pm

1 stop7h 01m

New Orleans Louis Armstrong

Mon 9/14

3:35 pm-11:55 pm

1 stop10h 20m

$261

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Thu 8/13

10:49 am-9:03 pm

1 stop8h 14m

New Orleans Louis Armstrong

Mon 8/17

9:48 pm-10:04 am

1 stop14h 16m

$264

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Wed 10/21

2:58 pm-5:10 am

1 stop12h 12m

New Orleans Louis Armstrong

Sat 10/24

3:35 pm-11:55 pm

1 stop10h 20m

$280

OntarioShreveport

ONT - SHV

ONTSHV

Ontario

Thu 7/16

3:40 pm-12:08 pm

1 stop18h 28m

Shreveport

Mon 7/20

3:26 pm-8:03 am

2 stops18h 37m

$323

OntarioShreveport

ONT - SHV

ONTSHV

Ontario

Thu 7/16

5:00 am-2:18 pm

1 stop7h 18m

Shreveport

Mon 7/20

5:56 pm-9:55 pm

1 stop5h 59m

$329

OntarioLafayette

ONT - LFT

ONTLFT

Ontario

Thu 7/16

11:59 pm-10:22 am

1 stop8h 23m

Lafayette Regional

Sun 7/19

8:03 pm-11:59 pm

1 stop5h 56m

$349

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Wed 12/2

10:59 pm-9:41 am

1 stop8h 42m

Baton Rouge Ryan

Tue 12/8

6:00 am-11:27 am

1 stop7h 27m

$349

Quickest round-trip

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Sat 8/8

12:33 pm-8:06 pm

1 stop5h 33m

Baton Rouge Ryan

Sat 8/15

6:00 am-9:34 am

1 stop5h 34m

$377

OntarioAlexandria

ONT - AEX

ONTAEX

Ontario

Tue 10/27

6:00 am-3:28 pm

1 stop7h 28m

Alexandria

Sat 10/31

4:06 pm-9:50 pm

1 stop7h 44m

$408

OntarioBaton Rouge

ONT - BTR

ONTBTR

Ontario

Thu 12/3

12:00 pm-10:01 pm

1 stop8h 01m

Baton Rouge Ryan

Tue 12/8

3:20 pm-10:14 pm

1 stop8h 54m

$414

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Louisiana

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

Prices

Airlines

What is the cheapest month to fly to Louisiana?

In general, September is the cheapest month to fly from Ontario to Louisiana. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $54. The month of May is another great option to travel to Louisiana, with average flight prices from Ontario averaging around $85.

How far in advance should I book a flight from Ontario to Louisiana?

You are more likely to see cheaper flights to Louisiana from Ontario when booking weeks ahead of your departure date. In general, you can expect to find flights to Louisiana for around $430 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Louisiana from Ontario for as low as $317 on momondo.

Cheap Ontario to Louisiana flight deals and tips

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

Fastest flight time	5h 39m
Direct flights	None

The fastest flight from Ontario to Louisiana takes 5h 39m

There are no direct flights from Ontario to Louisiana. There are no popular flight routes from Ontario to Louisiana.

Search flight deals

Frequently asked questions about flying from Ontario to Louisiana

When did momondo last update prices for flights from Ontario Airport to Louisiana?
Prices for flights from Ontario Airport to Louisiana were last updated today.
How many operators does momondo search for flights from Ontario Airport to Louisiana?
As of June 2026, there are 5 operators available to choose from for flights from Ontario Airport to Louisiana.
How old do you have to be to fly from Ontario Airport to Louisiana?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Louisiana.
What documentation or ID do you need to fly to Louisiana?
The travel and health documents required for your trip to Louisiana can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Louisiana. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Ontario to Louisiana

Compare and see reviews for airlines that fly from Ontario to Louisiana with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $94	Free Cancellation	Rating 5.6 2,870 reviews	Search Frontier flights
Delta	PriceFrom $177	Free Cancellation	Rating 7.8 8,421 reviews	Search Delta flights
United Airlines	PriceFrom $248	Free Cancellation	Rating 7.4 9,875 reviews	Search United Airlines flights
American Airlines	PriceFrom $248	Free Cancellation	Rating 7.1 11,739 reviews	Search American Airlines flights
Southwest	PriceFrom $316	Free Cancellation	Rating 7.9 4,243 reviews	Search Southwest flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to Louisiana. Millions of users trust and use momondo every year so you are in good hands.

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

Flights from Ontario to Louisiana with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ontario to Louisiana?

Once all potential Ontario to Louisiana flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Ontario to Louisiana flights. All you need is a valid email address and we will do the rest; it is that quick and easy.