Find Cheap Flights from Ontario to San Jose Juan Santamaria Intl (ONT - SJO)

Search hundreds of travel sites at once for deals on flights to San Jose Juan Santamaria Intl

Sun 12/10
Sun 12/17
Any month
Compare vs. KAYAK |

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $472 or less.

FAQs for Booking Ontario to San Jose Juan Santamaria Intl Flights

How long does a flight from Ontario to San Jose Juan Santamaria Intl take?
An average nonstop flight takes 11h 54m, covering a distance of 2687 miles.
Which airlines provide the cheapest flights from Ontario to San Jose Juan Santamaria Intl?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($591), United ($829) and American Airlines ($870).
Do I need a passport to fly between Ontario and San Jose Juan Santamaria Intl?
Yes.
What’s the cheapest day of the week to fly Ontario to San Jose Juan Santamaria Intl?
For Ontario to San Jose Juan Santamaria Intl, Friday is the cheapest day to fly on average and Thursday is the most expensive. Flying from San Jose Juan Santamaria Intl back to Ontario, the best deals are generally found on Thursday, with Sunday being the most expensive.

Book cheap flights from Ontario to San Jose Juan Santamaria Intl (round-trip)

Airports
Origin
Ontario
$591
only
$591
Destination
San Jose
$591
only
$591
Fri, Feb 9
ONT
SJO
16h 31m
Thu, Mar 8
SJO
ONT
14h 11m
Trip: 28 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Dec 12
ONT
SJO
30h 30m
Sun, Dec 17
SJO
ONT
15h 44m
Trip: 6 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52122 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAH
DCA
Good 7.0

Seats are not very comfortable. Food selection is not very good..

TUS
SFO
Good 7.6

Very nice flight attendant and the landing was very smooth.

I’m not a fan of the waffle cookies, wish they had a couple of choices of snacks.

SFO
PDX
Mediocre 3.6

I finally got to Portland.

The plane did not arrive at gate, they gave us poor/invalid excuses as to why there was no plane. We moved from gate 73A to gate 82, in another terminal back to gate 73A for no explainable reason. Finally we left after having to checked in now at gate 73.....what a mess and over 2hrs late!

IAH
JAX
Excellent 10.0

All was great!

ORD
CHA
Excellent 10.0

Fast & efficient

Not much

Thu, Dec 28
ONT
SJO
14h 16m
Sat, Jan 27
SJO
ONT
10h 21m
Trip: 31 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25860 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
DFW
FRA
Mediocre 2.0

The set I paid for I didn't get that and service was not good at all

PHL
FCO
Excellent 9.3

All the services

TV screen didn't work too well. Delayed starting

MCO
PHL
Excellent 8.0

new plane, on time

Somewhat bumpy landing if I'm being picky...

IND
CLT
Good 6.8

I did like that "new plane" smell. Good pretzels.

Plane was too new; computer system hadn't been set right. Left 45 minutes late, though made up some lost time in the air. Very rude passengers (obviously not the airline's fault, I know). Everyone thinks they should be the first to get off the plane!

CUZ
LIM
Excellent 8.0

Great!

No snack, and The airline used styrofoam cups which is not environmentally sustainable

Sun, Apr 29
ONT
SJO
28h 15m
Sun, May 6
SJO
ONT
30h 13m
$1060
Trip: 8 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 20153 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.9
Food
6.5
YVR
YYZ
Good 7.3

On-line check-in was available.

It was very confusing as to where to get bag tags after encountering issue with printing from the machines. No reps were kind enough to spend 3 mins to look at my situation/case and provide immediate guidance. As a result, I missed my flight and needed to pay extra to get on one.

YYZ
HND
Excellent 8.6

Friendly staff. The 777-300 ER has high ceilings. Individual outlets available for electronic devices. Clean washrooms.

Vegan menu needs improvement. No toothbrush or slippers issued. Movie collection was outdated and contained more Asian content.

TPE
YVR
Excellent 8.6

On-line check-in was available.The process in Taipei to board the flight was good.

SEA
YVR
Mediocre 2.0

Nothing

I was unable to board because I didn't have an ETA - I was unaware of this requirement until check in. I was only transiting thru Canada - the ground staff were horrible.

LGA
YYZ
Excellent 8.0

Quiet

Nothing

Sat, Jan 6
ONT
SJO
34h 56m
Fri, Jan 26
SJO
ONT
21h 35m
Trip: 21 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Jan 4
ONT
SJO
17h 40m
Mon, Jan 8
SJO
ONT
25h 01m
$1295
Trip: 5 days
8.4ExcellentShow reviews
Overall 8.4 Excellent
Based on 15660 reviews
Overall
8.6
Boarding
8.7
Comfort
8.4
Crew
8.9
Entertainment
7.8
Food
8.0
PDX
AUS
Good 7.6

On time and uneventful. That's all I really want or expected. Alaska came through in flying colors (pun intended).

On my return flight it seemed that the attendants were trying to stop anyone other than the 19 or 20 people in first class from using the forward bathroom. On my flight out, the cabin was asked to "wait at row 6" for the bathroom to be free. That seemed reasonable, even though I was in row 6, and fair to ask. However, on my return flight they seemed to expect the entire rest of the plane to use the rear bathroom. That doesn't seem right.

OGG
SAN
Excellent 8.0

Crew and boarding process

No international choice in entertainment and food

PDX
LAX
Excellent 10.0

Is wash very good

SEA
BNA
Good 7.0

I didn't eat or watch movies, so couldn't rate those. The crew we're pleasant and helpful, and the pilot got us there in one piece, which is the important thing. Then, I managed to leave my suitcase behind, after picking it up at baggage claim. I had just arrived at my destination and realized it was missing, and before panic set in I got a call from someone at Alaska Airlines, saying they had my bag. Excellent! I'd definitely fly Alaska again, and recommend it to others. Eileen

SJC
GDL
Good 6.0

Stolen items from luggage

Tue, Jun 26
ONT
SJO
24h 23m
Tue, Jul 3
SJO
ONT
35h 27m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Mar 31
ONT
SJO
11h 54m
Sun, Apr 8
SJO
ONT
13h 30m
Trip: 9 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 25860 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
LAX
MEX
Okay 4.6

Delay

PHL
FCO
Excellent 9.3

All the services

TV screen didn't work too well. Delayed starting

MLB
CLT
Okay 5.6

pleasant crew

CRJ900 is a small plane. no WiFi

BNA
DFW
Mediocre 3.3

Flight on time.

I miss friendly Southwest. Even the assigned seat is kit enough for me to use AA again. People smile at Southwest and seem to enjoy their job.

CLT
PWM
Okay 5.0

All the different prices for seats. I think it is a stupid system. Miss the good old days of air travel.

Wed, Jun 20
ONT
SJO
24h 25m
Wed, Jun 27
SJO
ONT
29h 25m
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52122 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
CHA
Excellent 10.0

Fast & efficient

Not much

IAH
JAX
Excellent 10.0

All was great!

SFO
PDX
Mediocre 3.6

I finally got to Portland.

The plane did not arrive at gate, they gave us poor/invalid excuses as to why there was no plane. We moved from gate 73A to gate 82, in another terminal back to gate 73A for no explainable reason. Finally we left after having to checked in now at gate 73.....what a mess and over 2hrs late!

AUS
SFO
Good 7.0

Nickle and diming....baggage fee, meal.

TUS
SFO
Good 7.6

Very nice flight attendant and the landing was very smooth.

I’m not a fan of the waffle cookies, wish they had a couple of choices of snacks.

Fri, Jun 15
ONT
SJO
22h 15m
Sat, Jun 23
SJO
ONT
12h 33m
$1075
Trip: 9 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52122 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
MCO
IAH
Good 6.6

There was plenty of room because I upgraded to 1st class. The crew was friendly.

My tv didn't work for the first 20 mins of the flight and had to be reset. They only had one of the drinks I wanted. I would have thought being that it was around lunchtime they would have served more than a bag of chips or banana. In coach, you get a bag of pretzels and/ or a cookie sometimes. American Airlines provides warm nuts and a fresh baked cookie and I had to pay more for the upgrade than I did on American for a longer flight.

EWR
BRU
Excellent 10.0

Amazing

Nothing

IAH
JAX
Excellent 10.0

All was great!

PHX
EWR
Excellent 10.0

Smooth flight

Nothing

HNL
SFO
Mediocre 2.0

It was operated by United Airlines. Absolutely no food oe entertainment, limited comfort.

*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

^
The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.