How long does it take to fly to Ontario?

Average flight duration from Costa Rica to Ontario depends on which airport you fly into and out of. Flying from Liberia to Los Angeles is 5h 51m on average, while flying from San José to Los Angeles is 6h 13m on average. Los Angeles is the most popular airport in Ontario.

What is the cheapest airline that flies from Costa Rica to Ontario?

United Airlines and Southwest are the most popular carriers operating from Costa Rica to Ontario

What airlines fly to Ontario?

Alaska Airlines, United Airlines and Avianca are the top three most popular airlines that fly to Ontario from Costa Rica according to our data. Alaska Airlines is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 7 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Costa Rica to Ontario Airport refresh daily.

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

There are 2 operators available for flights from Costa Rica to Ontario Airport as of June 2026.

How old do you have to be to fly from Costa Rica to Ontario 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 Costa Rica to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The travel and health documents required for your trip to Ontario Airport 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 Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$269 Cheap Flights from Costa Rica to Ontario in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Costa Rica to Los Angeles

Round-trip

One-way

Last minute

Recent round-trip flight deals from Costa Rica to Los Angeles

Enter your travel dates to find the best prices.

1:40 pm - 10:05 pm

SJO

ONT

9h 25m

1 stop

5:50 am - 6:00 pm

ONT

SJO

11h 10m

2 stops

$483Southwest

Tue, Sep 1 - Sat, Sep 12

1:40 pm - 10:05 pm

SJO

ONT

9h 25m

1 stop

5:50 am - 6:00 pm

ONT

SJO

11h 10m

2 stops

$531Southwest

Tue, Sep 1 - Sat, Sep 12

9:00 am - 10:05 pm

SJO

ONT

14h 05m

2 stops

6:00 am - 6:40 pm

ONT

SJO

11h 40m

2 stops

$556Southwest

Thu, Sep 24 - Mon, Sep 28

9:00 am - 8:40 pm

SJO

ONT

12h 40m

2 stops

7:00 am - 6:40 pm

ONT

SJO

10h 40m

2 stops

$576Southwest

Thu, Sep 24 - Tue, Sep 29

12:50 pm - 12:01 pm

LIR

ONT

25h 11m

2 stops

1:52 pm - 1:10 pm

ONT

LIR

21h 18m

2 stops

$589United Airlines

Thu, Nov 5 - Mon, Nov 9

9:00 am - 8:55 pm

SJO

ONT

12h 55m

2 stops

6:20 am - 6:40 pm

ONT

SJO

11h 20m

2 stops

$595Southwest

Wed, Sep 23 - Mon, Sep 28

1:20 pm - 9:59 pm

LIR

ONT

9h 39m

1 stop

9:01 am - 12:10 pm

ONT

LIR

26h 09m

2 stops

$597United Airlines

Sun, Sep 13 - Sun, Sep 20

7:00 am - 11:05 pm

SJO

ONT

17h 05m

2 stops

12:55 am - 9:56 pm

ONT

SJO

20h 01m

2 stops

$620Multiple Airlines

Thu, Aug 20 - Sun, Aug 23

2:20 pm - 9:50 pm

LIR

ONT

9h 30m

1 stop

5:00 am - 4:10 pm

ONT

LIR

9h 10m

1 stop

$653United Airlines

Thu, Nov 5 - Mon, Nov 9

1:20 pm - 12:47 pm

LIR

ONT

24h 27m

2 stops

5:00 am - 3:19 pm

ONT

LIR

9h 19m

1 stop

$674United Airlines

Tue, Jul 21 - Fri, Jul 31

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American Airlines flights from Costa Rica to Ontario

Our best American Airlines deals on Costa Rica to Ontario flight tickets

American Airlines

Sep 1

SJO7:00 amSan José Juan Santamaria Intl

27h 34m

2 stops

ONT9:34 amOntario

Sep 15

ONT2:22 pmOntario

21h 37m

2 stops

SJO12:59 pmSan José Juan Santamaria Intl

$675

American Airlines

Sep 1

SJO7:00 amSan José Juan Santamaria Intl

27h 34m

2 stops

ONT9:34 amOntario

Sep 15

ONT2:22 pmOntario

21h 37m

2 stops

SJO12:59 pmSan José Juan Santamaria Intl

$676

American Airlines

Dec 23

SJO12:34 amSan José Juan Santamaria Intl

17h 31m

2 stops

ONT4:05 pmOntario

Jan 8

ONT11:59 pmOntario

11h 55m

2 stops

SJO1:54 pmSan José Juan Santamaria Intl

$678

JetBlue flights from Costa Rica to Ontario

Our best JetBlue deals on Costa Rica to Ontario flight tickets

JetBlue

Jul 8

LIR2:00 pmLiberia

33h 44m

1 stop

ONT10:44 pmOntario

Jul 10

ONT11:51 pmOntario

12h 19m

1 stop

LIR1:10 pmLiberia

$916

JetBlue

Aug 11

LIR2:00 pmLiberia

33h 37m

1 stop

ONT10:37 pmOntario

Aug 19

ONT11:59 pmOntario

11h 41m

1 stop

LIR12:40 pmLiberia

$964

JetBlue

Aug 10

LIR2:00 pmLiberia

33h 37m

1 stop

ONT10:37 pmOntario

Aug 19

ONT11:59 pmOntario

11h 41m

1 stop

LIR12:40 pmLiberia

$990

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Tue 9/1

1:40 pm-10:05 pm

1 stop9h 25m

Ontario

Sat 9/12

5:50 am-6:00 pm

2 stops11h 10m

$483

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Tue 9/1

1:40 pm-10:05 pm

1 stop9h 25m

Ontario

Sat 9/12

5:50 am-6:00 pm

2 stops11h 10m

$531

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Thu 9/24

9:00 am-10:05 pm

2 stops14h 05m

Ontario

Mon 9/28

6:00 am-6:40 pm

2 stops11h 40m

$556

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Thu 9/24

9:00 am-8:40 pm

2 stops12h 40m

Ontario

Tue 9/29

7:00 am-6:40 pm

2 stops10h 40m

$576

LiberiaOntario

LIR - ONT

LIRONT

Liberia

Thu 11/5

12:50 pm-12:01 pm

2 stops25h 11m

Ontario

Mon 11/9

1:52 pm-1:10 pm

2 stops21h 18m

$589

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Wed 9/23

9:00 am-8:55 pm

2 stops12h 55m

Ontario

Mon 9/28

6:20 am-6:40 pm

2 stops11h 20m

$595

LiberiaOntario

LIR - ONT

LIRONT

Liberia

Sun 9/13

1:20 pm-9:59 pm

1 stop9h 39m

Ontario

Sun 9/20

9:01 am-12:10 pm

2 stops26h 09m

$597

San JoséOntario

SJO - ONT

SJOONT

San José Juan Santamaria Intl

Thu 8/20

7:00 am-11:05 pm

2 stops17h 05m

Ontario

Sun 8/23

12:55 am-9:56 pm

2 stops20h 01m

$620

Quickest round-trip

LiberiaOntario

LIR - ONT

LIRONT

Liberia

Thu 11/5

2:20 pm-9:50 pm

1 stop9h 30m

Ontario

Mon 11/9

5:00 am-4:10 pm

1 stop9h 10m

$653

LiberiaOntario

LIR - ONT

LIRONT

Liberia

Tue 7/21

1:20 pm-12:47 pm

2 stops24h 27m

Ontario

Fri 7/31

5:00 am-3:19 pm

1 stop9h 19m

$674

Flights are sorted by cheapest round-trip flights first.

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How to get the cheapest flight ticket from Costa Rica to Ontario

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

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Other information

What is the cheapest month to fly to Ontario?

In general, August is the cheapest month to fly from Costa Rica to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $264. If you aren’t able to travel during the month of August, then book flights to Ontario from Costa Rica during December instead. Flights to Ontario in December, while not as cheap as those in August, still average around $267.

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

You are more likely to see cheaper flights to Ontario from Costa Rica when booking weeks ahead of your departure date. In general, you can expect to find flights to Ontario for around $438 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ontario from Costa Rica for as low as $368 on momondo.

Can stopping save me money on Costa Rica to Ontario flights?

You could potentially save up to 48% on your flight if you consider stops on a Costa Rica to Ontario flight.

Cheap Costa Rica to Ontario flight deals and tips

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

Fastest flight time	9h 01m
Direct flights	None

The fastest flight from Costa Rica to Ontario takes 9h 01m

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

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Frequently asked questions about flying from Costa Rica to Ontario

When did momondo last update prices for flights from Costa Rica to Ontario Airport?
Prices for flights from Costa Rica to Ontario Airport refresh daily.
How many operators does momondo search for flights from Costa Rica to Ontario Airport?
There are 2 operators available for flights from Costa Rica to Ontario Airport as of June 2026.
How old do you have to be to fly from Costa Rica to Ontario 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 Costa Rica to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents required for your trip to Ontario Airport 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 Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Costa Rica to Ontario

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $267	Free Cancellation	Rating 7.4 9,898 reviews		Search United Airlines flights
Avianca	PriceFrom $361	Free Cancellation	Rating 6.5 2,536 reviews		Search Avianca flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Costa Rica.

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

Yes. momondo allows you to filter the results for Costa Rica to Ontario flights to just show those with flexible booking policies.

How can momondo help me find flights from Costa Rica to Ontario?

Once all potential Costa Rica to Ontario 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 Costa Rica to Ontario right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Costa Rica to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Cheap flights from Costa Rica to Los Angeles from $269

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Costa Rica to Los Angeles departing on 9/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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American Airlines flights from Costa Rica to Ontario

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How to get the cheapest flight ticket from Costa Rica to Ontario

What is the cheapest month to fly to Ontario?

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

Can stopping save me money on Costa Rica to Ontario flights?

What is the cheapest airline that flies from Costa Rica to Ontario?

What airlines fly to Ontario?

How long does it take to fly to Ontario?

Cheap Costa Rica to Ontario flight deals and tips

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

Fastest flight time

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Frequently asked questions about flying from Costa Rica to Ontario

Best airlines flying from Costa Rica to Ontario

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

Why use momondo?

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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List of cabin classes available on flights landing in Los Angeles. Availability may vary depending on flight origin and airline.

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