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Cheap flights from Ontario to Louisiana from $61

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 Louisiana departing on 1/23. 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
0 bags

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Find the cheapest flights from Ontario to Louisiana

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:00 am - 5:16 pmONT-MSY
9h 16m1 stop
Frontier Logo
5:55 pm - 11:56 pmMSY-ONT
8h 01m1 stop
$144Frontier
Find Deal
Thu, Jan 8 - Mon, Jan 12
Frontier Logo
6:00 am - 6:16 pmONT-MSY
34h 16m2 stops
Frontier Logo
5:55 pm - 11:56 pmMSY-ONT
8h 01m1 stop
$162Frontier
Find Deal
Fri, Jan 9 - Mon, Jan 12
Multiple Airlines Logo
6:00 am - 9:42 amONT-MSY
25h 42m2 stops
Multiple Airlines Logo
5:55 pm - 11:56 pmMSY-ONT
8h 01m1 stop
$165Multiple Airlines
Find Deal
Thu, Jan 8 - Mon, Jan 12
Multiple Airlines Logo
6:20 am - 6:53 pmONT-MSY
10h 33m1 stop
Multiple Airlines Logo
10:47 am - 12:20 amMSY-ONT
15h 33m2 stops
$173Multiple Airlines
Find Deal
Fri, Jan 30 - Mon, Feb 2
Delta Logo
12:41 pm - 10:19 pmONT-SHV
7h 38m1 stop
Delta Logo
6:00 am - 11:31 amSHV-ONT
7h 31m1 stop
$269Delta
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Wed, Jan 7 - Sat, Jan 10
Delta Logo
12:41 pm - 9:42 pmONT-AEX
7h 01m1 stop
Delta Logo
6:12 am - 11:31 amAEX-ONT
7h 19m1 stop
$278Delta
Find Deal
Wed, Jan 21 - Sat, Jan 24
American Airlines Logo
3:09 pm - 10:59 pmONT-AEX
5h 50m1 stop
American Airlines Logo
6:06 am - 4:05 pmAEX-ONT
11h 59m2 stops
$284American Airlines
Find Deal
Thu, Jan 29 - Sat, Jan 31
United Airlines Logo
8:00 am - 3:31 pmONT-SHV
5h 31m1 stop
United Airlines Logo
4:10 pm - 9:59 pmSHV-ONT
7h 49m1 stop
$349United Airlines
Find Deal
Wed, Feb 11 - Sun, Feb 15
American Airlines Logo
12:57 pm - 10:11 pmONT-SHV
7h 14m2 stops
American Airlines Logo
6:00 am - 10:08 amSHV-ONT
6h 08m1 stop
$354American Airlines
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Wed, Jan 7 - Sat, Jan 10
United Airlines Logo
6:00 am - 1:11 pmONT-LFT
5h 11m1 stop
United Airlines Logo
5:20 am - 12:32 pmLFT-ONT
9h 12m2 stops
$364United Airlines
Find Deal
Wed, Dec 10 - Sun, Dec 14

Frontier flights from Ontario to Louisiana

Our best Frontier deals on Ontario to Louisiana flight tickets
Frontier
Jan 8
ONT6:00 amOntario
9h 16m
1 stop
MSY5:16 pmNew Orleans Louis Armstrong
Jan 12
MSY5:55 pmNew Orleans Louis Armstrong
8h 01m
1 stop
ONT11:56 pmOntario
$144
Find similar
Frontier
Jan 9
ONT6:00 amOntario
34h 16m
2 stops
MSY6:16 pmNew Orleans Louis Armstrong
Jan 12
MSY5:55 pmNew Orleans Louis Armstrong
8h 01m
1 stop
ONT11:56 pmOntario
$162
Find similar
Frontier
Jan 7
ONT7:00 amOntario
31h 00m
2 stops
MSY4:00 pmNew Orleans Louis Armstrong
Jan 12
MSY5:55 pmNew Orleans Louis Armstrong
8h 01m
1 stop
ONT11:56 pmOntario
$171
Find similar

Alaska Airlines flights from Ontario to Louisiana

Our best Alaska Airlines deals on Ontario to Louisiana flight tickets
Alaska Airlines
Dec 10
ONT6:00 amOntario
9h 04m
1 stop
MSY5:04 pmNew Orleans Louis Armstrong
Dec 16
MSY7:00 amNew Orleans Louis Armstrong
15h 03m
2 stops
ONT8:03 pmOntario
$420
Find similar
Alaska Airlines
Dec 10
ONT6:00 amOntario
9h 04m
1 stop
MSY5:04 pmNew Orleans Louis Armstrong
Dec 16
MSY7:00 amNew Orleans Louis Armstrong
13h 33m
1 stop
ONT6:33 pmOntario
$434
Find similar
Alaska Airlines
Dec 10
ONT6:00 amOntario
9h 04m
1 stop
MSY5:04 pmNew Orleans Louis Armstrong
Dec 15
MSY7:00 amNew Orleans Louis Armstrong
30h 19m
1 stop
ONT11:19 amOntario
$471
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Louisiana 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 November 26, 2025.
Use the filters below to find and compare flights from Ontario to Louisiana that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Thu 1/8

6:00 am-5:16 pm

1 stop9h 16m

New Orleans Louis Armstrong

Mon 1/12

5:55 pm-11:56 pm

1 stop8h 01m

$144

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Fri 1/9

6:00 am-6:16 pm

2 stops34h 16m

New Orleans Louis Armstrong

Mon 1/12

5:55 pm-11:56 pm

1 stop8h 01m

$162

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Thu 1/8

6:00 am-9:42 am

2 stops25h 42m

New Orleans Louis Armstrong

Mon 1/12

5:55 pm-11:56 pm

1 stop8h 01m

$165

OntarioNew Orleans

ONT - MSY

ONTMSY

Ontario

Fri 1/30

6:20 am-6:53 pm

1 stop10h 33m

New Orleans Louis Armstrong

Mon 2/2

10:47 am-12:20 am

2 stops15h 33m

$173

OntarioShreveport

ONT - SHV

ONTSHV

Ontario

Wed 1/7

12:41 pm-10:19 pm

1 stop7h 38m

Shreveport

Sat 1/10

6:00 am-11:31 am

1 stop7h 31m

$269

OntarioAlexandria

ONT - AEX

ONTAEX

Ontario

Wed 1/21

12:41 pm-9:42 pm

1 stop7h 01m

Alexandria

Sat 1/24

6:12 am-11:31 am

1 stop7h 19m

$278

OntarioAlexandria

ONT - AEX

ONTAEX

Ontario

Thu 1/29

3:09 pm-10:59 pm

1 stop5h 50m

Alexandria

Sat 1/31

6:06 am-4:05 pm

2 stops11h 59m

$284

OntarioShreveport

ONT - SHV

ONTSHV

Ontario

Wed 2/11

8:00 am-3:31 pm

1 stop5h 31m

Shreveport

Sun 2/15

4:10 pm-9:59 pm

1 stop7h 49m

$349

OntarioShreveport

ONT - SHV

ONTSHV

Ontario

Wed 1/7

12:57 pm-10:11 pm

2 stops7h 14m

Shreveport

Sat 1/10

6:00 am-10:08 am

1 stop6h 08m

$354

OntarioLafayette

ONT - LFT

ONTLFT

Ontario

Wed 12/10

6:00 am-1:11 pm

1 stop5h 11m

Lafayette Regional

Sun 12/14

5:20 am-12:32 pm

2 stops9h 12m

$364

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 Louisiana from

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

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 $316. The month of August is another great option to travel to Louisiana, with average flight prices from Ontario averaging around $332.

What is the cheapest day to depart on your flight to Louisiana?

According to our data, Tuesday is the cheapest day to fly to Louisiana from Ontario. The lowest ticket price found for a Tuesday departure recently was $378. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Louisiana on Monday is $487.

What is the cheapest time of day to depart on your flight to Louisiana?

The cheapest time of day to fly to Louisiana is in the evening when flights can be purchased for as low as $382. In contrast, the most expensive time of day to depart to Louisiana is in the morning when prices are around $462.

How far in advance should I book a flight 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 $407 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 $330 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 31m

Direct flights

None
The fastest flight from Ontario to Louisiana takes 5h 31m
There are no direct flights from Ontario to Louisiana. There are no popular flight routes from Ontario to Louisiana.
Search flight deals

  • 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?

  • 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
Spirit AirlinesPriceFrom $100Free CancellationRating
6.3
8,158 reviews
Search Spirit Airlines flights
FrontierPriceFrom $140Free CancellationRating
5.8
3,099 reviews
Search Frontier flights
DeltaPriceFrom $177Free CancellationRating
7.9
7,998 reviews
Search Delta flights
United AirlinesPriceFrom $246Free CancellationRating
7.4
9,046 reviews
Search United Airlines flights
American AirlinesPriceFrom $248Free CancellationRating
7.2
11,038 reviews
Search American Airlines flights
SouthwestPriceFrom $302Free CancellationRating
8.0
4,254 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.

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