What are the cheapest airlines flying from Ontario to San Antonio round-trip?

According to our current data, Frontier ($190), Southwest ($285), and Delta ($300) offers the cheapest pricing from Ontario to San Antonio. Frontier is 45% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from Ontario to San Antonio one-way?

The cheapest airlines for a one-way flight from Ontario to San Antonio are Frontier ($96), Delta ($143), and Hawaiian Airlines ($164).

What are the most popular airlines that fly from Ontario to San Antonio?

When booking a flight from Ontario to San Antonio, you may want to consider flying on American Airlines, Delta or Frontier as they are the most popular for this route.

What is the cheapest day to fly round-trip from Ontario to San Antonio?

Saturday flights are found to be more expensive to fly from Ontario to San Antonio. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to San Antonio.

How far in advance should I book a flight from Ontario to San Antonio?

Users have found that booking a flight from Ontario to San Antonio at least 35 days early can save you up to 103% on average compared to booking a flight this week. If booking 35 days before your flight isn’t an option for you, users have found flights from Ontario to San Antonio for as little as $192 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $397 for flights departing within the next 3 days.

What is the cheapest month to fly from Ontario to San Antonio?

Flights from Ontario to San Antonio lean towards being more expensive in December. Prices are generally better when you fly from Ontario to San Antonio in September, with the cheapest ticket starting at $68.

Most accurate provider : When it comes to deals on Ontario-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-San Antonio flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Ontario-San Antonio flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-San Antonio flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Ontario to San Antonio that include hotel bookings?

Yes. In addition to deals on Ontario to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Ontario to San Antonio?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to San Antonio.

Can I find deals for business class flights from Ontario to San Antonio?

Yes. Cheapflights offers flight deals from Ontario to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$96+ Flights from Ontario to San Antonio

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Ontario to San Antonio with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Ontario to San Antonio are usually found in August or January, booked 59 days in advance, depart on a Wednesday or Saturday and return on a Friday

Cheap flight deals from Ontario to San Antonio

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$190 (CheapOair)
One-way from	$96 (CheapOair)
Popular in	March
Cheapest in	August
Average price	$355

Provider with most accurate pricing for Ontario-San Antonio flight deals.

Search Deals

Provider most trusted by Cheapflights users for Ontario-San Antonio flights.

Search Deals

From Ontario to San Antonio

Search Deals

One-way flight from Ontario to San Antonio

Search Deals

Highest demand for flights based on searches. 6% potential increase in price ($24 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Find flight deals from Ontario to San Antonio

Cheapest flights from Ontario to San Antonio
Explore the most affordable flight options available from Ontario to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 11, 2025.

Fri 4/1112:49 amONT - SAT

1 stop10h 28mFrontier

Tue 4/152:44 pmSAT - ONT

1 stop11h 15mFrontier

Deal found 4/10

$178

Thu 5/812:59 amONT - SAT

1 stop11h 18mMultiple Airlines

Tue 5/136:35 amSAT - ONT

1 stop10h 57mMultiple Airlines

Deal found 4/10

$274

Wed 5/76:00 amONT - SAT

1 stop5h 45mDelta

Wed 5/147:45 amSAT - ONT

1 stop6h 30mDelta

Deal found 4/10

$285

Wed 5/75:05 amONT - SAT

2 stops10h 49mUnited Airlines

Mon 5/124:21 pmSAT - ONT

1 stop7h 39mUnited Airlines

Deal found 4/10

$307

Fri 5/92:55 pmONT - SAT

2 stops6h 30mSouthwest

Tue 5/133:25 pmSAT - ONT

1 stop6h 05mSouthwest

Deal found 4/10

$324

Sat 5/311:46 amONT - SAT

1 stop10h 13mAlaska Airlines

Tue 5/66:35 amSAT - ONT

1 stop10h 57mAlaska Airlines

Deal found 4/11

$328

Thu 5/221:14 pmONT - SAT

1 stop5h 20mAmerican Airlines

Sun 5/256:00 amSAT - ONT

1 stop7h 50mAmerican Airlines

Deal found 4/10

$342

Sat 5/311:46 amONT - SAT

1 stop10h 13mHawaiian Airlines

Wed 5/76:35 amSAT - ONT

1 stop10h 57mHawaiian Airlines

Deal found 4/10

$425

Best flights from Ontario to San Antonio
Discover carefully curated flight deals from Ontario to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 11, 2025.

Wed 4/2310:44 amONT - SAT

1 stop23h 53mFrontier

Sun 4/271:37 pmSAT - ONT

1 stop19h 43mFrontier

Deal found 4/9

$190

Tue 5/611:46 amONT - SAT

1 stop10h 13mMultiple Airlines

Sun 5/118:25 pmSAT - ONT

1 stop5h 34mMultiple Airlines

Deal found 4/8

$268

Wed 5/74:30 pmONT - SAT

1 stop4h 25mSouthwest

Wed 5/147:30 amSAT - ONT

1 stop5h 05mSouthwest

Deal found 4/8

$285

Wed 4/305:15 pmONT - SAT

1 stop5h 05mDelta

Fri 5/306:10 pmSAT - ONT

1 stop7h 32mDelta

Deal found 4/9

$300

Fri 5/911:59 pmONT - SAT

1 stop8h 04mAmerican Airlines

Sun 5/118:34 pmSAT - ONT

1 stop5h 09mAmerican Airlines

Deal found 4/10

$319

Tue 5/66:00 amONT - SAT

2 stops8h 59mUnited Airlines

Sun 5/115:30 amSAT - ONT

2 stops8h 54mUnited Airlines

Deal found 4/8

$343

Tue 5/611:46 amONT - SAT

1 stop10h 13mAlaska Airlines

Thu 5/86:35 amSAT - ONT

1 stop10h 57mAlaska Airlines

Deal found 4/9

$375

Sat 5/311:46 amONT - SAT

1 stop10h 13mHawaiian Airlines

Wed 5/76:35 amSAT - ONT

1 stop10h 57mHawaiian Airlines

Deal found 4/10

$425

Last-minute flights from Ontario to San Antonio
Discover last-minute flight deals from Ontario to San Antonio. Data last updated April 11, 2025 and is based on user searches.

Fri 4/1112:49 amONT - SAT

1 stop10h 28mFrontier

Tue 4/152:44 pmSAT - ONT

1 stop11h 15mFrontier

Deal found 4/9

$178

Wed 4/169:09 pmONT - SAT

1 stop16h 25mFrontier

Fri 4/186:47 pmSAT - ONT

1 stop22h 32mFrontier

Deal found 4/9

$210

Sat 4/196:10 amONT - SAT

1 stop5h 09mUnited Airlines

Wed 4/239:04 amSAT - ONT

1 stop13h 38mUnited Airlines

Deal found 4/10

$510

Sat 4/1910:18 amONT - SAT

2 stops17h 22mAlaska Airlines

Thu 4/246:35 amSAT - ONT

1 stop10h 57mAlaska Airlines

Deal found 4/9

$690

Sun 4/206:15 amONT - SAT

1 stop7h 35mSouthwest

Thu 4/245:40 amSAT - ONT

1 stop6h 25mSouthwest

Deal found 4/9

$396

Sun 4/204:35 pmONT - SAT

1 stop4h 36mAmerican Airlines

Thu 4/248:35 pmSAT - ONT

1 stop5h 15mAmerican Airlines

Deal found 4/9

$443

Wed 4/305:15 pmONT - SAT

1 stop5h 05mDelta

Fri 5/306:10 pmSAT - ONT

1 stop7h 32mDelta

Deal found 4/9

$300

Sat 5/311:46 amONT - SAT

1 stop10h 13mHawaiian Airlines

Wed 5/76:35 amSAT - ONT

1 stop10h 57mHawaiian Airlines

Deal found 4/10

$425

Tue 5/611:46 amONT - SAT

1 stop10h 13mMultiple Airlines

Sun 5/118:25 pmSAT - ONT

1 stop5h 34mMultiple Airlines

Deal found 4/8

$268

Tue 5/66:00 amONT - SAT

2 stops8h 59mUnited Airlines

Sun 5/115:30 amSAT - ONT

2 stops8h 54mUnited Airlines

Deal found 4/8

$343

Tue 5/611:46 amONT - SAT

1 stop10h 13mAlaska Airlines

Thu 5/86:35 amSAT - ONT

1 stop10h 57mAlaska Airlines

Deal found 4/9

$375

Wed 5/74:30 pmONT - SAT

1 stop4h 25mSouthwest

Wed 5/147:30 amSAT - ONT

1 stop5h 05mSouthwest

Deal found 4/8

$285

One-way flights from Ontario to San Antonio
Search for one-way flight options from Ontario to San Antonio. Find affordable one-way fares based on user searches. Data last updated April 11, 2025.

Wed 5/141:08 pmONT - SAT

1 stop21h 35mFrontier

Deal found 4/10

$96

Tue 6/1010:05 pmONT - SAT

1 stop9h 40mDelta

Deal found 4/10

$143

Tue 5/136:00 amONT - SAT

1 stop10h 37mHawaiian Airlines

Deal found 4/10

$164

Tue 7/11:34 pmONT - SAT

1 stop8h 25mUnited Airlines

Deal found 4/10

$183

Thu 5/812:00 pmONT - SAT

2 stops10h 05mSouthwest

Deal found 4/10

$187

Mon 5/126:24 pmONT - SAT

1 stop27h 35mAlaska Airlines

Deal found 4/10

$197

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

Wed 4/23

12:10 pm-4:52 pm

1 stop26h 42m

San Antonio

Sun 4/27

1:37 pm-1:14 pm

1 stop25h 37m

$190

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

Thu 5/8

12:59 am-2:17 pm

1 stop11h 18m

San Antonio

Tue 5/13

6:35 am-3:32 pm

1 stop10h 57m

$274

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

Wed 5/7

6:00 am-1:45 pm

1 stop5h 45m

San Antonio

Wed 5/14

7:45 am-12:15 pm

1 stop6h 30m

$285

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

Wed 5/7

5:05 am-5:54 pm

2 stops10h 49m

San Antonio

Mon 5/12

4:21 pm-10:00 pm

1 stop7h 39m

$307

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

Fri 5/9

2:55 pm-11:25 pm

2 stops6h 30m

San Antonio

Tue 5/13

3:25 pm-7:30 pm

1 stop6h 05m

$324

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

Sat 5/3

11:46 am-11:59 pm

1 stop10h 13m

San Antonio

Tue 5/6

6:35 am-3:32 pm

1 stop10h 57m

$328

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

Thu 5/22

1:14 pm-8:34 pm

1 stop5h 20m

San Antonio

Sun 5/25

6:00 am-11:50 am

1 stop7h 50m

$342

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

Sat 5/3

11:46 am-11:59 pm

1 stop10h 13m

San Antonio

Wed 5/7

6:35 am-3:32 pm

1 stop10h 57m

$425

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

Wed 5/14

1:08 pm-12:43 pm

1 stop21h 35m

$96

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

Tue 6/10

10:05 pm-9:45 am

1 stop9h 40m

$143

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/10

Showing 1-10 of 14 results

Compare providers for flights from Ontario to San Antonio

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to San Antonio in April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars
Flightnetwork	Price Accuracy-	Trust Score*3 stars
Cheapfaremart	Price Accuracy-	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Ontario-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-San Antonio flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Ontario-San Antonio flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-San Antonio flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Ontario with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to San Antonio

How far ahead should I book a flight from Ontario to San Antonio?

The best time to book flights from Ontario to San Antonio is 59 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Ontario to San Antonio?

Currently, August is the cheapest month in which you can book a flight from Ontario to San Antonio (average of $295). Flying from Ontario to San Antonio in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ONT to SAT?

It’s typically best to fly out from Ontario to San Antonio in the evening. Doing so could potentially save you 24% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Ontario to San Antonio?

Travelers seeking maximum savings on their Ontario to San Antonio flight should consider departing on Saturday afternoons when fares are most often at their lowest. Wednesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in San Antonio by month

In terms of precipitation, rainfall in San Antonio ranges from 1.6 - 3.7 inches per month. May is typically the wettest month, when rainfall can reach 3.7 in. December is typically the driest time to visit San Antonio when rainfall is around 1.6 in.

Temperature in San Antonio by month

If weather is an important factor for your trip to San Antonio, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Antonio

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Ontario to San Antonio to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines

8.0

Very good

9,851 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Southwest

8.0

Very good

4,279 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta

8.0

Very good

7,910 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Hawaiian Airlines

7.9

Good

2,366 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

United Airlines

7.4

Good

8,636 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

10.0

Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

What are the cheapest airlines flying from Ontario to San Antonio round-trip?
According to our current data, Frontier ($190), Southwest ($285), and Delta ($300) offers the cheapest pricing from Ontario to San Antonio. Frontier is 45% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Ontario to San Antonio one-way?
The cheapest airlines for a one-way flight from Ontario to San Antonio are Frontier ($96), Delta ($143), and Hawaiian Airlines ($164).
Can I find deals for flights from Ontario to San Antonio that include hotel bookings?
Yes. In addition to deals on Ontario to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to San Antonio?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to San Antonio.
Can I find deals for business class flights from Ontario to San Antonio?
Yes. Cheapflights offers flight deals from Ontario to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Ontario to San Antonio?
Currently, August is the cheapest month in which you can book a flight from Ontario to San Antonio (average of $295). Flying from Ontario to San Antonio in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

New Braunfels

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Ontario to San Antonio

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$75	Average$161	FlexibilityNo cancel fee	On-time65%
Frontier	Cheapest$114	Average$206	FlexibilityNo cancel fee	On-time62%
American Airlines	Cheapest$249	Average$380	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$275	Average$367	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$286	Average$405	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$308	Average$397	FlexibilityNo cancel fee	On-time63%

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$96+ Cheap flights from Ontario to San Antonio (ONT - SAT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to San Antonio with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Ontario to San Antonio are usually found in August or January, booked 59 days in advance, depart on a Wednesday or Saturday and return on a Friday

Cheap flight deals from Ontario to San Antonio

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ontario to San Antonio

Cheapest flights from Ontario to San AntonioExplore the most affordable flight options available from Ontario to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 11, 2025.

Explore the most affordable flight options available from Ontario to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to San Antonio that are best for you.

Compare providers for flights from Ontario to San Antonio

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to San Antonio in April.

Best time to book a flight from Ontario to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Ontario with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Ontario to San Antonio

How far ahead should I book a flight from Ontario to San Antonio?

Use this chart to determine the optimal time to book a round-trip flight from Ontario to San Antonio. Price data was last updated on April 4, 2025.

What is the cheapest month to book a flight from Ontario to San Antonio?

What is the cheapest time of day to fly from ONT to SAT?

Find hourly flight availability from Ontario to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 11, 2025.

What is the cheapest day to fly from Ontario to San Antonio?

Use this chart to determine the cheapest time to fly round-trip from Ontario to San Antonio. Price data was last updated on December 16, 2024.

Rainfall in San Antonio by month

Plan your trip to San Antonio by taking into account the average rainfall totals by month.

Temperature in San Antonio by month

Plan your trip to San Antonio by taking into account the average temperature totals by month.

Reviews of airlines servicing San Antonio

Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Ontario to San Antonio to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Ontario to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines flying from Ontario to San Antonio round-trip?

What are the cheapest airlines to fly from Ontario to San Antonio one-way?

Can I find deals for flights from Ontario to San Antonio that include hotel bookings?

How can I find direct flights from Ontario to San Antonio?

Can I find deals for business class flights from Ontario to San Antonio?

What is the cheapest month to book a flight from Ontario to San Antonio?

Traveling to a place near Ontario?

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Alternative routes for Ontario to San Antonio

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Top 6 airlines flying from Ontario to San Antonio

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Cheapest flights from Ontario to San Antonio
Explore the most affordable flight options available from Ontario to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 11, 2025.