What airlines fly to Costa Rica?

Alaska Airlines, United Airlines and Volaris Costa Rica are the top three most popular airlines that fly to Costa Rica from Ontario according to our data. Alaska Airlines is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Costa Rica. Keep in mind that there are 11 different airlines that fly to Costa Rica on a routine basis, so you have a few additional options to choose from.

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

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

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

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

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

The number of operators available for flights from Ontario Airport to Costa Rica is 3 as of June 2026.

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

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 Costa Rica.

What documentation or ID do you need to fly to Costa Rica?

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

$212 Cheap Flights from Ontario to Costa Rica in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Costa Rica

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 6:40 pm

ONT

SJO

10h 40m

2 stops

1:40 pm - 10:05 pm

SJO

ONT

9h 25m

1 stop

$482Southwest

Tue, Aug 25 - Wed, Sep 2

6:00 am - 6:40 pm

ONT

SJO

11h 40m

2 stops

9:00 am - 10:50 pm

SJO

ONT

14h 50m

2 stops

$508Southwest

Mon, Sep 14 - Sun, Sep 20

10:30 pm - 11:25 am

ONT

SJO

10h 55m

1 stop

9:35 am - 8:55 pm

SJO

ONT

13h 20m

1 stop

$509Avianca

Tue, Nov 17 - Sat, Dec 12

11:35 pm - 8:45 am

ONT

SJO

8h 10m

1 stop

3:10 pm - 9:45 pm

SJO

ONT

7h 35m

1 stop

$524Avianca

Sat, Oct 3 - Sat, Oct 10

11:59 pm - 12:40 pm

ONT

LIR

11h 41m

1 stop

2:00 pm - 8:13 pm

LIR

ONT

31h 13m

1 stop

$592JetBlue

Tue, Sep 1 - Tue, Sep 8

2:22 pm - 1:18 pm

ONT

LIR

21h 56m

2 stops

2:18 pm - 6:17 pm

LIR

ONT

28h 59m

2 stops

$606American Airlines

Sat, Sep 12 - Sat, Sep 26

6:00 am - 1:47 pm

ONT

LIR

30h 47m

1 stop

2:18 pm - 10:37 pm

LIR

ONT

9h 19m

1 stop

$613American Airlines

Sat, Sep 12 - Sat, Sep 26

11:59 pm - 12:40 pm

ONT

LIR

11h 41m

1 stop

2:00 pm - 10:35 pm

LIR

ONT

33h 35m

1 stop

$627JetBlue

Tue, Sep 1 - Mon, Sep 7

1:52 pm - 12:10 pm

ONT

LIR

21h 18m

2 stops

1:20 pm - 12:18 pm

LIR

ONT

23h 58m

2 stops

$699United Airlines

Tue, Sep 29 - Wed, Oct 14

6:00 am - 12:10 pm

ONT

LIR

29h 10m

1 stop

1:20 pm - 9:59 pm

LIR

ONT

9h 39m

1 stop

$709United Airlines

Tue, Sep 29 - Wed, Oct 14

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American Airlines flights from Ontario to Costa Rica

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

American Airlines

Sep 28

ONT2:22 pmOntario

21h 37m

2 stops

SJO12:59 pmSan José Juan Santamaria Intl

Oct 19

SJO12:57 pmSan José Juan Santamaria Intl

11h 09m

1 stop

ONT11:06 pmOntario

$585

American Airlines

Sep 23

ONT8:25 amOntario

28h 32m

1 stop

SJO1:57 pmSan José Juan Santamaria Intl

Oct 17

SJO12:57 pmSan José Juan Santamaria Intl

9h 11m

1 stop

ONT9:08 pmOntario

$592

American Airlines

Sep 28

ONT2:22 pmOntario

21h 37m

2 stops

SJO12:59 pmSan José Juan Santamaria Intl

Oct 19

SJO1:05 pmSan José Juan Santamaria Intl

23h 43m

2 stops

ONT11:48 amOntario

$595

Avianca flights from Ontario to Costa Rica

Our best Avianca deals on Ontario to Costa Rica flight tickets

Avianca

Nov 17

ONT10:30 pmOntario

10h 55m

1 stop

SJO11:25 amSan José Juan Santamaria Intl

Dec 12

SJO9:35 amSan José Juan Santamaria Intl

13h 20m

1 stop

ONT8:55 pmOntario

$509

Avianca

Oct 3

ONT11:35 pmOntario

8h 10m

1 stop

SJO8:45 amSan José Juan Santamaria Intl

Oct 10

SJO3:10 pmSan José Juan Santamaria Intl

7h 35m

1 stop

ONT9:45 pmOntario

$524

Avianca

Aug 15

ONT11:35 pmOntario

10h 55m

1 stop

SJO11:30 amSan José Juan Santamaria Intl

Aug 18

SJO5:05 amSan José Juan Santamaria Intl

17h 40m

1 stop

ONT9:45 pmOntario

$529

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSan José

ONT - SJO

ONTSJO

Ontario

Tue 8/25

7:00 am-6:40 pm

2 stops10h 40m

San José Juan Santamaria Intl

Wed 9/2

1:40 pm-10:05 pm

1 stop9h 25m

$482

OntarioSan José

ONT - SJO

ONTSJO

Ontario

Mon 9/14

6:00 am-6:40 pm

2 stops11h 40m

San José Juan Santamaria Intl

Sun 9/20

9:00 am-10:50 pm

2 stops14h 50m

$508

OntarioSan José

ONT - SJO

ONTSJO

Ontario

Tue 11/17

10:30 pm-11:25 am

1 stop10h 55m

San José Juan Santamaria Intl

Sat 12/12

9:35 am-8:55 pm

1 stop13h 20m

$509

Quickest round-trip

OntarioSan José

ONT - SJO

ONTSJO

Ontario

Sat 10/3

11:35 pm-8:45 am

1 stop8h 10m

San José Juan Santamaria Intl

Sat 10/10

3:10 pm-9:45 pm

1 stop7h 35m

$524

OntarioLiberia

ONT - LIR

ONTLIR

Ontario

Tue 9/1

11:59 pm-12:40 pm

1 stop11h 41m

Liberia

Tue 9/8

2:00 pm-8:13 pm

1 stop31h 13m

$592

OntarioLiberia

ONT - LIR

ONTLIR

Ontario

Sat 9/12

2:22 pm-1:18 pm

2 stops21h 56m

Liberia

Sat 9/26

2:18 pm-6:17 pm

2 stops28h 59m

$606

OntarioLiberia

ONT - LIR

ONTLIR

Ontario

Sat 9/12

6:00 am-1:47 pm

1 stop30h 47m

Liberia

Sat 9/26

2:18 pm-10:37 pm

1 stop9h 19m

$613

OntarioLiberia

ONT - LIR

ONTLIR

Ontario

Tue 9/1

11:59 pm-12:40 pm

1 stop11h 41m

Liberia

Mon 9/7

2:00 pm-10:35 pm

1 stop33h 35m

$627

OntarioLiberia

ONT - LIR

ONTLIR

Ontario

Tue 9/29

1:52 pm-12:10 pm

2 stops21h 18m

Liberia

Wed 10/14

1:20 pm-12:18 pm

2 stops23h 58m

$699

OntarioLiberia

ONT - LIR

ONTLIR

Ontario

Tue 9/29

6:00 am-12:10 pm

1 stop29h 10m

Liberia

Wed 10/14

1:20 pm-9:59 pm

1 stop9h 39m

$709

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 Costa Rica

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 Costa Rica?

The cheapest month to fly to Costa Rica from Ontario is in February. Flight prices, which tend to average around $119, are often lower during this time because this is during the off-season. If you’re not able to fly to Costa Rica in February, then January is your next best option. Flight prices from Ontario to Costa Rica during January average around $173.

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

You could potentially save up to 41% on your flight if you consider stops on a Ontario to Costa Rica flight.

Cheap Ontario to Costa Rica flight deals and tips

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

Fastest flight time	7h 40m
Direct flights	None

The fastest flight from Ontario to Costa Rica takes 7h 40m

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

Search flight deals

Frequently asked questions about flying from Ontario to Costa Rica

When did momondo last update prices for flights from Ontario Airport to Costa Rica?
Prices for flights from Ontario Airport to Costa Rica were last updated today.
How many operators does momondo search for flights from Ontario Airport to Costa Rica?
The number of operators available for flights from Ontario Airport to Costa Rica is 3 as of June 2026.
How old do you have to be to fly from Ontario Airport to Costa Rica?
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 Costa Rica.
What documentation or ID do you need to fly to Costa Rica?
The travel and health documents required for your trip to Costa Rica 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 Costa Rica. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Ontario to Costa Rica

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

Airline	Rating	Free Cancellation	Price
Avianca	PriceFrom $215	Free Cancellation	Rating 6.5 2,537 reviews	Search Avianca flights
American Airlines	PriceFrom $356	Free Cancellation	Rating 7.1 11,779 reviews	Search American Airlines flights
United Airlines	PriceFrom $371	Free Cancellation	Rating 7.4 9,896 reviews	Search United Airlines flights

Why use momondo?

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

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

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

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

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

momondo provides multiple filters to help you find the best flight to Costa Rica from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

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

An easier way to manage your Costa Rica trip

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Popular cities in Costa Rica

Flights to San Joséfrom $219

Flights to Liberiafrom $292

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Cheap flights from Ontario to Costa Rica from $212

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 Costa Rica departing on 9/7. 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 Ontario to Costa Rica

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

What is the cheapest month to fly to Costa Rica?

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

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

What airlines fly to Costa Rica?

Cheap Ontario to Costa Rica flight deals and tips

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

Fastest flight time

Direct flights

Frequently asked questions about flying from Ontario to Costa Rica

Best airlines flying from Ontario to Costa Rica

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

Why use momondo?

An easier way to manage your Costa Rica 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.

Find better results for your trip to Costa Rica

Popular cities in Costa Rica

Popular flights according to clicks in the last 7 days on momondo

Ontario flight routes

According to popular flight searches on momondo this year

Costa Rica flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Costa Rica

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Costa Rica

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

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According to popular flight searches on momondo this year