Skyscanner

Cheap Flights from Ontario International to San Jose Juan Santamaria

Compare Ontario International to San Jose Juan Santamaria flight deals

Find the cheapest month or even day of the year to fly to San Jose Juan Santamaria

Book the best San Jose Juan Santamaria fare with no extra fees

Flight deals from Ontario International to San Jose Juan Santamaria

Looking for a cheap last-minute deal or the best return flight from Ontario International to San Jose Juan Santamaria? Find the lowest prices on one-way and return tickets right here.
San Jose.Rs44,213 per passenger.Departing Tue, 16 Sep.One-way flight with Avianca.Outbound indirect flight with Avianca, departs from Ontario International on Tue, 16 Sep, arriving in San Jose Juan Santamaria.Price includes taxes and charges.From Rs44,213, select.
San Jose.Rs44,342 per passenger.Departing Sat, 25 Oct.One-way flight with Avianca.Outbound indirect flight with Avianca, departs from Ontario International on Sat, 25 Oct, arriving in San Jose Juan Santamaria.Price includes taxes and charges.From Rs44,342, select.
San Jose.Rs60,798 per passenger.Departing Sat, 31 Jan.One-way flight with Avianca.Outbound indirect flight with Avianca, departs from Ontario International on Sat, 31 Jan, arriving in San Jose Juan Santamaria.Price includes taxes and charges.From Rs60,798, select.
San Jose.Rs60,821 per passenger.Departing Sun, 7 Dec.One-way flight with Avianca.Outbound indirect flight with Avianca, departs from Ontario International on Sun, 7 Dec, arriving in San Jose Juan Santamaria.Price includes taxes and charges.From Rs60,821, select.
San Jose.Rs61,909 per passenger.Departing Mon, 3 Nov.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Mon, 3 Nov, arriving in San Jose Juan Santamaria.Price includes taxes and charges.From Rs61,909, select.
San Jose.Rs61,909 per passenger.Departing Mon, 2 Feb.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Mon, 2 Feb, arriving in San Jose Juan Santamaria.Price includes taxes and charges.From Rs61,909, select.
San Jose.Rs69,180 per passenger.Departing Sat, 4 Apr.One-way flight with Avianca.Outbound indirect flight with Avianca, departs from Ontario International on Sat, 4 Apr, arriving in San Jose Juan Santamaria.Price includes taxes and charges.From Rs69,180, select.
San Jose.Rs72,944 per passenger.Departing Tue, 31 Mar.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Ontario International on Tue, 31 Mar, arriving in San Jose Juan Santamaria.Price includes taxes and charges.From Rs72,944, select.

Find the cheapest month to fly from Ontario International to San Jose Juan Santamaria

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ontario International to San Jose Juan Santamaria flights are currently cheapest in September.
Sep
from Rs44,266
Oct
from Rs44,395
Nov
from Rs61,984
Dec
from Rs60,895
Jan
from Rs60,872
Feb
from Rs61,984
Mar
from Rs73,033
Apr
from Rs69,264
May
from Rs77,586
Jun
from Rs141,790
Jul
from Rs251,253
Aug
Find prices

Ontario International to San Jose Juan Santamaria: Alternative routes

Compare routes from Ontario International to San Jose below. You may find an airport to fly into that's cheaper, faster, or easier than San Jose Juan Santamaria.

Ontario to San Jose: Flight information

The things to know before you go.
Cheapest flight foundRs44,266
Cheapest month to flySeptember

Finding cheap flights from Ontario International to San Jose Juan Santamaria: Frequently asked questions

The best price we found for a return flight from Ontario International to San Jose Juan Santamaria is Rs99,268. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Ontario International to San Jose Juan Santamaria. But we found flights with one or more stops from Rs99,268.
As of September 2025, there are no flights flying from Ontario International to San Jose Juan Santamaria.
The cheapest month to fly from Ontario International to San Jose Juan Santamaria is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ontario International Airport to San Jose Juan Santamaria Airport on Saturday, 20 September 2025.
No airlines currently offer direct flights between Ontario International Airport and San Jose Juan Santamaria Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Jose Juan Santamaria but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Jose is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Avianca offers the cheapest flight tickets to San Jose Juan Santamaria.

Travelling from Ontario International Airport (ONT) to Juan Santamaria International Airport (SJO): what you need to know

  • The timezone in San Jose is UTC-6, which is one hour ahead of Ontario.

  • Your ONT to SJO flight won't wait if you're late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • Be prepared for bigger queues during popular months such as August. Arriving up to four hours ahead of an international flight and two hours for a domestic departure is a good idea.

  • If you'd like to break up your flight, simply deselect 'Direct flights only' when searching for your ticket from Ontario International Airport to Juan Santamaria International Airport. These are the most popular stopovers between ONT and SJO:

    • El Salvador International Airport

    • Denver International Airport

    • Dallas/Fort Worth International Airport

How to find the cheapest flights from Ontario International Airport (ONT) to Juan Santamaria International Airport (SJO)

  • Rs44,266 is currently the lowest price for a one-way Ontario International Airport to Juan Santamaria International Airport flight. Return flights start at Rs99,268. These fares can change based on demand and availability.

  • Don't leave everything to the last minute. You're more likely to find cheap tickets from ONT to SJO if you book in advance. Airlines often have some excellent early bird deals.

  • If you're flexible with your trip dates, try using the 'Whole month' tool. It'll show you the cheapest price in every month when searching for your flight from Ontario International Airport to Juan Santamaria International Airport.

  • There's no need to check back in every day to see if fares have gone down when you create a Price Alert. We'll send you an update as soon as a special offer becomes available on cheap flights from ONT to SJO.

  • Select your preferred departure and arrival times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to find the best deals on flights from Ontario International Airport to Juan Santamaria International Airport.

Handy information about Ontario International Airport (ONT)

  • The address for ONT is 2900 E. Airport Drive.

  • Ontario International Airport earns top marks for on-time performance. 83.6% of flights that take off from ONT arrive at their destination as scheduled.

  • To get to Ontario International Airport from central Ontario, it takes around 10 minutes by car. This depends on traffic though. It's approximately 6 kilometres from the airport to the city centre.

  • Planning to catch public transport? Expect a trip time of around 1 hour 30 minutes.

  • Get your travels off to a leisurely start by staying near ONT. Whether you've booked an early flight from Ontario International Airport to Juan Santamaria International Airport or just don't want to be rushed, these stays are the answer:

Arriving at Juan Santamaria International Airport (SJO)

Getting from Juan Santamaria International Airport (SJO) to central San Jose

  • From Juan Santamaria International Airport, San Jose is approximately 18 kilometres away. It takes around 20 minutes to reach the centre driving.

  • It typically takes 2 hours 20 minutes if you're travelling on public transport.

When to fly to Juan Santamaria International Airport (SJO)

  • July is the busiest month for flights from Ontario International Airport to Juan Santamaria International Airport. To skip the crowds, head to San Jose in May.

  • The warmest month in San Jose is March, with the temperature ranging between 12ºC and 29ºC. Lock in your flights from Ontario International Airport to Juan Santamaria International Airport in this month if this is the type of weather you enjoy.

  • Look for cheap tickets from ONT to SJO in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between 12ºC and 26ºC on average.

Explore more of Costa Rica

  • Limon is just one of the many places in Costa Rica waiting to be discovered once you've taken in the sights of San Jose. Around 113 kilometres away to the east, well-known attractions include Veragua Rainforest Park, Playa Bonita and Cruise Pier Puerto Limon.

  • Alajuela is another sought-after destination in Costa Rica and is around 18 kilometres north-west of San Jose. No trip is complete without experiencing La Perla Park, Los Duendes Park and Finca El Soto.

Plan the rest of your trip from Ontario to San Jose

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.