Cheap flights from Ontario to Costa Rica from $168
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 2/24. 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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1 adult
Economy
0 bags
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Cheap round-trip flights
These are some of the best round-trip flight deals from Ontario to Costa Rica that have been recently found on momondo from popular airlines, departing in the coming months.
Cheap one-way flights
Flying one-way? These are some of the best deals recently discovered on momondo for flights from Ontario to Costa Rica.
Cheap last minute flights
Planning a quick getaway from Ontario to Costa Rica? These are the last-minute flight deals available now.
Cheap direct flights
If you prefer a non-stop journey, check out our latest direct flight deals to Costa Rica, so you can enjoy a seamless trip without layovers.
Cheap bus & train deals from Ontario to Costa Rica
Find recent round-trip train or bus tickets from Ontario to Costa Rica.
All round-trip flight deals from Ontario to Costa Rica
The cheapest plane tickets from Ontario to Costa Rica found on KAYAK recently.
Avianca flights from Ontario to Costa Rica
Our best Avianca deals on Ontario to Costa Rica flight tickets
Avianca![Avianca]()
Feb 15![Avianca]()
Feb 22
ONT10:30 pmOntario
10h 55m
1 stop
SJO11:25 amSan José Juan Santamaria Intl
SJO9:35 amSan José Juan Santamaria Intl
13h 25m
1 stop
ONT9:00 pmOntario
Avianca![Avianca]()
Feb 15![Avianca]()
Mar 4
ONT10:30 pmOntario
10h 55m
1 stop
SJO11:25 amSan José Juan Santamaria Intl
SJO9:35 amSan José Juan Santamaria Intl
13h 25m
1 stop
ONT9:00 pmOntario
United Airlines flights from Ontario to Costa Rica
Our best United Airlines deals on Ontario to Costa Rica flight tickets
United Airlines![United Airlines]()
Mar 1![United Airlines]()
Mar 4
ONT6:00 amOntario
9h 57m
1 stop
LIR5:57 pmLiberia
LIR8:50 amLiberia
15h 09m
1 stop
ONT9:59 pmOntario
United Airlines![United Airlines]()
Mar 5![United Airlines]()
Mar 12
ONT6:00 amOntario
12h 39m
1 stop
SJO8:39 pmSan José Juan Santamaria Intl
SJO7:45 amSan José Juan Santamaria Intl
15h 14m
1 stop
ONT9:59 pmOntario
See travel insights to Costa Rica from
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 May. Flight prices, which tend to average around $324, are often lower during this time because this is during the off-season. If you’re not able to fly to Costa Rica in May, then October is your next best option. Flight prices from Ontario to Costa Rica during October average around $423.
What is the cheapest day to depart on your flight to Costa Rica?
According to our data, Monday is the cheapest day to fly to Costa Rica from Ontario. The lowest ticket price found for a Monday departure recently was $462. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $653. These prices are subject to change though, so be sure to set up a Price Alert for flights to Costa Rica.
What is the cheapest time of day to depart on your flight to Costa Rica?
In the evening is the cheapest time of day to fly from Ontario to Costa Rica when you can find flight prices for as low as $473. Flying to Costa Rica in the evening is an ideal time because this is during off-peak travel hours. Flights to Costa Rica are more costly in the morning, with an average ticket price of $669. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.
How far in advance should I book a flight to Costa Rica?
You are more likely to see cheaper flights to Costa Rica from Ontario when booking 8 weeks ahead of your departure date. In general, you can expect to find flights to Costa Rica for around $523 when searching 8 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Costa Rica from Ontario for as low as $389 on momondo.
What is the cheapest airline that flies from Ontario to Costa Rica?
Avianca, American Airlines, and United Airlines are the most popular carriers operating from Ontario to Costa Rica
What airlines fly to Costa Rica?
Alaska Airlines, Avianca and United Airlines 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 46% of people opting to fly with this airline when traveling to Costa Rica. Keep in mind that there are 13 different airlines that fly to Costa Rica on a routine basis, so you have a few additional options to choose from.
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
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 January 2025.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $314 | Free Cancellation | Rating 6.9 2,579 reviews | |||
| PriceFrom $378 | Free Cancellation | Rating 7.4 8,984 reviews | |||
| PriceFrom $442 | Free Cancellation | Rating 7.2 10,000 reviews |
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.
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