Find Cheap Flights from Ontario to San Antonio (ONT - SAT)

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Sat 12/16
Sat 12/23
Any month
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Good to Know

Low Season:
October
Best time to beat the crowds
2%
expected price decrease
High Season:
January
Most popular time to fly
15%
expected price increase
Average Price:
$358
(avg. price over the last 2 weeks)
Good Deal:
$264
or less (round trip)

When to Book Flights from Ontario to San Antonio

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $264 or less.
The cheapest flight from Ontario to San Antonio was found 13 days before departure, on average.
Book at least 1 week before departure in order to get a below-average price.
Morning departure is around 44% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Ontario to San Antonio Flights

How long does a flight from Ontario to San Antonio take?
An average nonstop flight takes 2h 46m, covering a distance of 1165 miles.
How many flights are there between Ontario and San Antonio?
There are 4 (nonstop) flights between Ontario and San Antonio per week, averaging 0 per day.
Which airlines provide the cheapest flights from Ontario to San Antonio?
In the past 3 days, the cheapest round-trip tickets were found on Frontier ($47), Multiple Airlines ($162) and American Airlines ($264).
Do I need a passport to fly between Ontario and San Antonio?
No.
Which airlines fly most frequently between Ontario and San Antonio?
Frontier (0 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Ontario to San Antonio?
For Ontario to San Antonio, Friday is the cheapest day to fly on average and Thursday is the most expensive. Flying from San Antonio back to Ontario, the best deals are generally found on Saturday, with Wednesday being the most expensive.

Book cheap flights from Ontario to San Antonio (round-trip)

Airports
Origin
Ontario
$47
only
$47
Destination
San Antonio
$47
only
$47
Fri, Jan 12
ONT
SAT
2h 48m
Sat, Jan 20
SAT
ONT
3h 18m
Trip: 9 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 1 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MSY
PVD
Excellent 8.0

The price!

LAS
IAD
Good 6.3

The staff on the flight was awesome, very helpful and kind to my friend who is terrified to fly. We were even ahead of schedule.

To pay for a carry on item is just crazy to me... not to mention you have to pay for beverages and snacks. All you are given is water.

TYS
MCO
Okay 5.0

Great people

The plane wasn’t very clean

PHL
MCO
Mediocre 2.3

Its a scam! They act like they are giving you a break by having you buy cheap flights but in reality it costs more than a bit more expensive flight. I had to pay $45.00 each bag no matter if it was checked or carry-on. In total round trip I paid $180.00 extra just for my husbands carry-on as well as mine. Must add that our flights together cost 286.00. We should of went with American Airlines. On top of that we couldn't select our own seat if so, we had to pay extra, so we had to sit separated from each other. It was ridiculous! Never Again with this company!!!!!

DEN
SFO
Mediocre 2.0

Website would not let me check in the day before or the morning or my flight. There was an error every time and I almost got to the end once. I could not change the time of my transportation and arrived 10 minutes past the check in deadline (an hour prior to the flight taking off). I was refused access to the flight and offered a flight 5 hours later. The staff was rude and not helpful. I had heard negative things about Frontier and now I know why.

Fri, Jan 12
ONT
SAT
2h 48m
Sat, Jan 20
SAT
ONT
3h 18m
Trip: 9 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 1 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
ATL
DEN
Mediocre 3.6

The price was good, and it was a non stop flight.

The crew was rude and the seats didn't recline.

MKE
TPA
Good 6.6

2nd row had plenty of leg room, nice new jet, Nice flight attendants, smooth flight, on time, made it to my destination safe. Successful flight! TSA Pre-chek was nice.

Idiot in front of me reclined his seat. Plane didn't get catered overnight. Water only.

MSY
MCO
Excellent 10.0

Great crew great flight

Nothing, everything was awesome. Crazy to believe this was a 19 dollar flight

SJU
ATL
Excellent 10.0

Fast luggage checking

No cash accepted for overweight baggage

TYS
MCO
Okay 5.0

Great people

The plane wasn’t very clean

Wed, Mar 7
ONT
SAT
2h 46m
Wed, Mar 14
SAT
ONT
3h 03m
Trip: 7 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 1 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
SJU
ATL
Excellent 10.0

Fast luggage checking

No cash accepted for overweight baggage

PHL
MCO
Mediocre 2.3

Its a scam! They act like they are giving you a break by having you buy cheap flights but in reality it costs more than a bit more expensive flight. I had to pay $45.00 each bag no matter if it was checked or carry-on. In total round trip I paid $180.00 extra just for my husbands carry-on as well as mine. Must add that our flights together cost 286.00. We should of went with American Airlines. On top of that we couldn't select our own seat if so, we had to pay extra, so we had to sit separated from each other. It was ridiculous! Never Again with this company!!!!!

LAS
IAD
Good 6.3

The staff on the flight was awesome, very helpful and kind to my friend who is terrified to fly. We were even ahead of schedule.

To pay for a carry on item is just crazy to me... not to mention you have to pay for beverages and snacks. All you are given is water.

AUS
LAS
Excellent 8.0

Efficient

N/a

ATL
DEN
Mediocre 3.6

The price was good, and it was a non stop flight.

The crew was rude and the seats didn't recline.

Mon, Feb 26
ONT
SAT
2h 48m
Wed, Mar 7
SAT
ONT
3h 03m
Trip: 10 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 1 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PHL
MCO
Mediocre 2.3

Its a scam! They act like they are giving you a break by having you buy cheap flights but in reality it costs more than a bit more expensive flight. I had to pay $45.00 each bag no matter if it was checked or carry-on. In total round trip I paid $180.00 extra just for my husbands carry-on as well as mine. Must add that our flights together cost 286.00. We should of went with American Airlines. On top of that we couldn't select our own seat if so, we had to pay extra, so we had to sit separated from each other. It was ridiculous! Never Again with this company!!!!!

AUS
LAS
Excellent 8.0

Efficient

N/a

SJU
ATL
Excellent 10.0

Fast luggage checking

No cash accepted for overweight baggage

DEN
MKE
Good 6.6

Direct flight from Denver to Milwaukee. Didn't have to wait on tarmac so that was a plus.

Have to pay for every little thring down to the peanuts

LAS
IAD
Good 6.3

The staff on the flight was awesome, very helpful and kind to my friend who is terrified to fly. We were even ahead of schedule.

To pay for a carry on item is just crazy to me... not to mention you have to pay for beverages and snacks. All you are given is water.

Fri, Dec 29
ONT
SAT
4h 36m
Mon, Jan 8
SAT
ONT
3h 18m
Trip: 11 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Jan 24
ONT
SAT
2h 48m
Mon, Jan 29
SAT
ONT
3h 18m
Trip: 6 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 1 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
ATL
DEN
Mediocre 3.6

The price was good, and it was a non stop flight.

The crew was rude and the seats didn't recline.

SJU
ATL
Excellent 10.0

Fast luggage checking

No cash accepted for overweight baggage

AUS
LAS
Excellent 8.0

Efficient

N/a

MSY
PVD
Excellent 8.0

The price!

DEN
MKE
Good 6.6

Direct flight from Denver to Milwaukee. Didn't have to wait on tarmac so that was a plus.

Have to pay for every little thring down to the peanuts

Wed, Feb 14
ONT
SAT
2h 48m
Sat, Feb 17
SAT
ONT
3h 18m
Trip: 4 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 1 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PHL
MCO
Mediocre 2.3

Its a scam! They act like they are giving you a break by having you buy cheap flights but in reality it costs more than a bit more expensive flight. I had to pay $45.00 each bag no matter if it was checked or carry-on. In total round trip I paid $180.00 extra just for my husbands carry-on as well as mine. Must add that our flights together cost 286.00. We should of went with American Airlines. On top of that we couldn't select our own seat if so, we had to pay extra, so we had to sit separated from each other. It was ridiculous! Never Again with this company!!!!!

SJU
ATL
Excellent 10.0

Fast luggage checking

No cash accepted for overweight baggage

DEN
SFO
Mediocre 2.0

Website would not let me check in the day before or the morning or my flight. There was an error every time and I almost got to the end once. I could not change the time of my transportation and arrived 10 minutes past the check in deadline (an hour prior to the flight taking off). I was refused access to the flight and offered a flight 5 hours later. The staff was rude and not helpful. I had heard negative things about Frontier and now I know why.

AUS
LAS
Excellent 8.0

Efficient

N/a

MSY
MCO
Excellent 10.0

Great crew great flight

Nothing, everything was awesome. Crazy to believe this was a 19 dollar flight

Tue, Apr 10
ONT
SAT
5h 06m
Sat, Apr 14
SAT
ONT
4h 45m
Trip: 5 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 26055 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
CLE
JFK
Mediocre 3.3

Plane was dirty and crew inattentive.

YUL
MIA
Excellent 10.0

First time flyer with American airlines and the service was impeccable

Nothing to dislike

LAX
LHR
Excellent 9.2

Easy and efficient boarding for a busy flight. Efficient, attentive and intuitive cabin crew. Good in-flight entertainment and facilities.

The aircraft was extremely cold throughout the duration of the flight. Of all of the long haul airlines I've flown with, I find that American Airlines offers the least leg room.

ATL
CLT
Excellent 9.6

The flight was late

JFK
MXP
Mediocre 2.6

Plane was old and dirty, seat pocket had junk in it. Seat was broken and couldn’t stay up. In flight movies were from few years back with a center tv and no head rest screen. Crew on overseas flights tend to be older in age and less tolerant..much better on continental on the same route.

Fri, Apr 20
ONT
SAT
2h 46m
Wed, Apr 25
SAT
ONT
3h 03m
Trip: 6 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 1 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
PHL
MCO
Mediocre 2.3

Its a scam! They act like they are giving you a break by having you buy cheap flights but in reality it costs more than a bit more expensive flight. I had to pay $45.00 each bag no matter if it was checked or carry-on. In total round trip I paid $180.00 extra just for my husbands carry-on as well as mine. Must add that our flights together cost 286.00. We should of went with American Airlines. On top of that we couldn't select our own seat if so, we had to pay extra, so we had to sit separated from each other. It was ridiculous! Never Again with this company!!!!!

DEN
SFO
Mediocre 2.0

Website would not let me check in the day before or the morning or my flight. There was an error every time and I almost got to the end once. I could not change the time of my transportation and arrived 10 minutes past the check in deadline (an hour prior to the flight taking off). I was refused access to the flight and offered a flight 5 hours later. The staff was rude and not helpful. I had heard negative things about Frontier and now I know why.

ATL
DEN
Mediocre 3.6

The price was good, and it was a non stop flight.

The crew was rude and the seats didn't recline.

SJU
ATL
Excellent 10.0

Fast luggage checking

No cash accepted for overweight baggage

MKE
TPA
Good 6.6

2nd row had plenty of leg room, nice new jet, Nice flight attendants, smooth flight, on time, made it to my destination safe. Successful flight! TSA Pre-chek was nice.

Idiot in front of me reclined his seat. Plane didn't get catered overnight. Water only.

Sun, Jun 3
ONT
SAT
2h 53m
Mon, Jun 11
SAT
ONT
3h 12m
Trip: 9 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 1 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
DEN
MKE
Good 6.6

Direct flight from Denver to Milwaukee. Didn't have to wait on tarmac so that was a plus.

Have to pay for every little thring down to the peanuts

PHL
MCO
Mediocre 2.3

Its a scam! They act like they are giving you a break by having you buy cheap flights but in reality it costs more than a bit more expensive flight. I had to pay $45.00 each bag no matter if it was checked or carry-on. In total round trip I paid $180.00 extra just for my husbands carry-on as well as mine. Must add that our flights together cost 286.00. We should of went with American Airlines. On top of that we couldn't select our own seat if so, we had to pay extra, so we had to sit separated from each other. It was ridiculous! Never Again with this company!!!!!

TYS
MCO
Okay 5.0

Great people

The plane wasn’t very clean

AUS
LAS
Excellent 8.0

Efficient

N/a

LAS
IAD
Good 6.3

The staff on the flight was awesome, very helpful and kind to my friend who is terrified to fly. We were even ahead of schedule.

To pay for a carry on item is just crazy to me... not to mention you have to pay for beverages and snacks. All you are given is water.

Thu, May 3
ONT
SAT
2h 53m
Sat, May 19
SAT
ONT
3h 12m
Trip: 17 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 1 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MSY
MCO
Excellent 10.0

Great crew great flight

Nothing, everything was awesome. Crazy to believe this was a 19 dollar flight

MSY
PVD
Excellent 8.0

The price!

DEN
SFO
Mediocre 2.0

Website would not let me check in the day before or the morning or my flight. There was an error every time and I almost got to the end once. I could not change the time of my transportation and arrived 10 minutes past the check in deadline (an hour prior to the flight taking off). I was refused access to the flight and offered a flight 5 hours later. The staff was rude and not helpful. I had heard negative things about Frontier and now I know why.

SJU
ATL
Excellent 10.0

Fast luggage checking

No cash accepted for overweight baggage

LAS
IAD
Good 6.3

The staff on the flight was awesome, very helpful and kind to my friend who is terrified to fly. We were even ahead of schedule.

To pay for a carry on item is just crazy to me... not to mention you have to pay for beverages and snacks. All you are given is water.

Sat, Dec 16
ONT
SAT
2h 48m
Mon, Dec 18
SAT
ONT
3h 18m
Trip: 3 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 1 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
AUS
LAS
Excellent 8.0

Efficient

N/a

SJU
ATL
Excellent 10.0

Fast luggage checking

No cash accepted for overweight baggage

ATL
DEN
Mediocre 3.6

The price was good, and it was a non stop flight.

The crew was rude and the seats didn't recline.

LAS
IAD
Good 6.3

The staff on the flight was awesome, very helpful and kind to my friend who is terrified to fly. We were even ahead of schedule.

To pay for a carry on item is just crazy to me... not to mention you have to pay for beverages and snacks. All you are given is water.

MSY
MCO
Excellent 10.0

Great crew great flight

Nothing, everything was awesome. Crazy to believe this was a 19 dollar flight

Thu, May 3
ONT
SAT
4h 40m
Sun, May 6
SAT
ONT
4h 45m
Trip: 4 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 26055 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
BNA
DFW
Good 7.3

Everything else

ATL
CLT
Excellent 9.6

The flight was late

DFW
SCL
Excellent 9.6

The food is very tasty, but AA has not changed the menu in at least one year.

CLT
SJU
Mediocre 3.3

Direct flight

Horrible customer service, excessive baggage fees, rude counter staff, no leg room, narrow seats

SFO
DFW
Excellent 10.0

On time. Comfortable seat. Courteous crew. Easy transfer.

Sat, Dec 30
ONT
SAT
2h 48m
Wed, Jan 3
SAT
ONT
3h 18m
Trip: 5 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 1 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
AUS
LAS
Excellent 8.0

Efficient

N/a

SJU
ATL
Excellent 10.0

Fast luggage checking

No cash accepted for overweight baggage

LAS
IAD
Good 6.3

The staff on the flight was awesome, very helpful and kind to my friend who is terrified to fly. We were even ahead of schedule.

To pay for a carry on item is just crazy to me... not to mention you have to pay for beverages and snacks. All you are given is water.

MSY
PVD
Excellent 8.0

The price!

MSY
MCO
Excellent 10.0

Great crew great flight

Nothing, everything was awesome. Crazy to believe this was a 19 dollar flight

Fri, Dec 22
ONT
SAT
2h 48m
Sun, Dec 24
SAT
ONT
7h 30m
Trip: 3 days
8.6ExcellentShow reviews
Overall 8.6 Excellent
Based on 1 reviews
Overall
5.9
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.5
Food
4.7
MKE
TPA
Good 6.6

2nd row had plenty of leg room, nice new jet, Nice flight attendants, smooth flight, on time, made it to my destination safe. Successful flight! TSA Pre-chek was nice.

Idiot in front of me reclined his seat. Plane didn't get catered overnight. Water only.

MSY
PVD
Excellent 8.0

The price!

LAS
IAD
Good 6.3

The staff on the flight was awesome, very helpful and kind to my friend who is terrified to fly. We were even ahead of schedule.

To pay for a carry on item is just crazy to me... not to mention you have to pay for beverages and snacks. All you are given is water.

SJU
ATL
Excellent 10.0

Fast luggage checking

No cash accepted for overweight baggage

ATL
DEN
Mediocre 3.6

The price was good, and it was a non stop flight.

The crew was rude and the seats didn't recline.

Show more results
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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.