$142 Find Cheap Flights from Central America to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ontario departing on 2/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$261
Overall average: $458
Avianca
Thu 2/19Sat 2/21
SJO - ONT • 1 stop
Cheapest non-stop
$364
Typical prices: $320-$520
Avianca
Sat 1/24Sat 2/7
SAL - ONT • Non-stop
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Flight Deals
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Flight Deals

Cheap Flights from Central America to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Central America to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Central America to Ontario

Thu, Feb 19 - Sat, Feb 21
Avianca Logo
9:35 am - 8:55 pm
SJO
-
ONT
13h 20m1 stop
Avianca Logo
10:30 pm - 1:40 pm
ONT
-
SJO
13h 10m1 stop
$261Avianca
Fri, Jan 23 - Sun, Feb 1
United Airlines Logo
8:45 am - 9:58 pm
SJO
-
ONT
15h 13m1 stop
United Airlines Logo
6:00 am - 8:32 am
ONT
-
SJO
24h 32m1 stop
$268United Airlines
Thu, Apr 23 - Sat, May 9
Avianca Logo
3:05 pm - 9:55 pm
SJO
-
ONT
7h 50m1 stop
Avianca Logo
11:25 pm - 11:15 am
ONT
-
SJO
10h 50m1 stop
$276Avianca
Fri, May 1 - Sat, May 9
United Airlines Logo
8:45 am - 10:52 pm
SJO
-
ONT
15h 07m1 stop
United Airlines Logo
11:05 am - 7:15 am
ONT
-
SJO
19h 10m1 stop
$279United Airlines
Sat, Apr 25 - Sat, May 9
Avianca Logo
5:05 am - 9:55 pm
SJO
-
ONT
17h 50m1 stop
Avianca Logo
11:25 pm - 1:30 pm
ONT
-
SJO
13h 05m1 stop
$286Avianca
Wed, Apr 22 - Tue, May 5
American Airlines Logo
2:25 pm - 9:27 am
SJO
-
ONT
20h 02m2 stops
American Airlines Logo
8:05 pm - 1:10 pm
ONT
-
SJO
16h 05m2 stops
$297American Airlines
Wed, Jan 21 - Thu, Jan 29
American Airlines Logo
2:13 pm - 12:03 pm
GUA
-
ONT
23h 50m2 stops
American Airlines Logo
11:59 pm - 11:29 pm
ONT
-
GUA
21h 30m1 stop
$372American Airlines
Thu, Jan 15 - Fri, Jan 16
Frontier Logo
10:56 am - 7:01 pm
SAL
-
ONT
10h 05m1 stop
Frontier Logo
10:18 pm - 9:36 am
ONT
-
SAL
33h 18m2 stops
$372Frontier
Tue, Feb 3 - Sat, Feb 28
Lufthansa Logo
6:45 am - 5:55 pm
MGA
-
ONT
13h 10m2 stops
Lufthansa Logo
1:53 pm - 1:18 pm
ONT
-
MGA
21h 25m2 stops
$732Lufthansa
Tue, Feb 3 - Sat, Feb 28
Lufthansa Logo
6:45 am - 5:55 pm
MGA
-
ONT
13h 10m2 stops
Lufthansa Logo
6:00 am - 1:18 pm
ONT
-
MGA
29h 18m1 stop
$736Lufthansa
Useful Info

Good to know

Low seasonFebruary
Cheapest flight$142
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly with an average 18% increase in price.
Flight from San José to Ontario

FAQs for booking flights from Central America to Ontario

  • How does KAYAK find such low prices on flights from Central America to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Central America to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Central America to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Central America is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Central America to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Central America with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Central America to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Central America up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Central America to Ontario

 
Need help choosing which airline to fly with from Central America to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9102 reviews
7.7Boarding
8.1Crew
7.3Comfort
7.1Entertainment
6.6Food
Airline reviews

Flight was late - I was downgraded from first class to coach

2.0 MediocreMukund, Dec 2025
DEN - SFO
Read more United Airlines reviews

Flight was late - I was downgraded from first class to coach

Movie selection is good. Crew did not understand mileage program and were no help. Sick later. Food?

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

The flight attendants were very rude, beyond comprehension. I took a business class from London to SFO for the first time on United. When I asked for a second piece of bread during dinner, the serving attendant threw a 3rd bread on my plate and said, “here. You can have this one too”! I couldn’t believe the rudeness of the attendant. Most all attendants were very rude, unhelpful, sing the food was absolutely disgusting. Never fly United internationally in business class. My flight back to SFO was a nightmare!!

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Flight from Rome to SFO was excellent compared To our flight to Europe from SFO. The food was much tastier. You can see how UNITED is skimping, though. Instead of getting something mid flight you had to ask for it. It was not automatically served. There was a cookie at the end of the arrival meal, for example that tasted like it just came out of a box. They used to serve a little container of nuts, now … a tiny container of nuts, mixed with pretzels. This was business class that you really have to pay for! But this is minor complaints compared to the overall. My major complaint is the position of the even numbered seats by the windows. You have to turn around to see your window & the positioning as some other controls are harder to get at. This is compared to the odd number seat that are perfectly aligned.

The food quality sucks. One must starve if they do not eat flesh Or wheat based products Some variety would be expected. The trivial amount of snacks and or food is inhumane

Flight was timely, relatively comfortable, with decent entertainment and food served. Only problem encountered was with the free messaging which I highly appreciate, but it did not work from iphone to non-iphones.

The internet service I paid for didn’t work at all and the flight crew was not very friendly.

We were told the flight was delayed 5 times, then it was moved to the next day.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

Loved the crew . Absolutely no complaints. Except for luggage lost

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

We are too tired and frustrated to comment politely at this point

The business class seats are dated and uncomfortable. The space is bare minimum and there is absolutely no privacy. For $4K, this is not what I expect.

The flight crew was rude. We were in first class and no one even offered water until an hour after we were in the air. Horrible experience

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

Did not get the seat I selected and paid for.

I handed in my suitcase in perfect condition at SAL Airport. And in MIA Airport I received it with one corner broken and the wheels bent.

I like the crew members they're very friendly. Clean plane. The flight was on time. I dont like the comfort my car seat its better that the plane seats. They charge for everything. This airline was very good. Now it's a low cost airline

I couldnt recline the seat. Other than that crew was very attentive and helpful. Thsnk you

6 hour flight and have to pay for everything 100 dollars to add a carry-on bag is insane

Luggage lost and nowhere to be found, no response from either airline regarding my bag

The usb plugs for charging your phone didn’t work, the seats were coarse and hard. Not very comfortable. No inflight WiFi

Very uncomfortable planes , poor service on the plane , take your own water so you don’t dehydrate , in a 6 hs flight they sold one time food and beverage . 1 plane was delayed 6 hs , I lost a connecting flight . Then in the way back they announce a delay of 2 hs so I had to take a different flight to arrive on time for my connecting flight . Avoid this airline .

The check in is the only positive thing in Avianca. The seat is the most uncomfortable I have traveled, the distance is minimal.

Not what it used to be. The sale of food makes them look greedy!

Avianca is not what it used to be. So disappointing

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario