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

According to our current data, Frontier ($136), offers the cheapest pricing from Ontario to San Antonio. Frontier is 61% 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 ($70), United Airlines ($176), and Delta ($193).

How recently were the Ontario to San Antonio flight deals updated?

The Ontario to San Antonio flight deals you see on this page were last updated on 6/2.

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

Currently, September is the cheapest month in which you can book a flight from Ontario to San Antonio (average of $291). 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 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.

Can I find flights from Ontario to San Antonio for under $200 on Cheapflights?

Yes, there are multiple flights from Ontario to San Antonio for under $200. The cheapest flight booked recently is on Frontier for just $136, but on average you can expect to pay $176.

Are there last-minute flights available from Ontario to San Antonio for under $200?

There are currently 20+ open flights from Ontario to San Antonio within the next 7 days for less than $200.

What does ONT to SAT mean?

This is defined as Ontario Airport (ONT) and San Antonio Airport (SAT). Codes like San Antonio Airport are often used to just call airports uniquely.

Can I find deals for flights from Ontario to San Antonio that include extra baggage allowance?

The amount of baggage you can bring on your Ontario to San Antonio flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

Can I find deals on flights from Ontario to San Antonio with specific airlines?

Yes, Cheapflights allows you to browse and filter Ontario to San Antonio flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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.

Can I find deals for flights from Ontario to San Antonio that allow pets onboard?

Many airlines flying from Ontario to San Antonio offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

Can I find deals on last-minute flights from Ontario to San Antonio?

Yes, you can often find last-minute deals on Ontario to San Antonio flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

Flights from Ontario, CA to San Antonio, TX from $70

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

The best prices from Ontario to San Antonio are usually found in January or February, booked 86 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap flight deals from Ontario to San Antonio

Popular in	April
Cheapest in	January
Round-trip from	$291
One-way from	$183

High demand for flights, 19% potential price rise

Search Deals

Best time to find cheap flights, 22% potential price drop

Search Deals

From Ontario to San Antonio

Search Deals

One-way flight from Ontario to San Antonio

Search Deals

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 22 days early can save you up to 48% on average compared to booking a flight this week. If booking 22 days before your flight isn’t an option for you, users have found flights from Ontario to San Antonio for as little as $195 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 $376 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 April. Prices are generally better when you fly from Ontario to San Antonio in October, with the cheapest ticket starting at $76.

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 at noon. Doing so could potentially save you 38% on the flight price compared to flying in the morning, which is usually more expensive.

Cheap Delta flights from Ontario to San Antonio

Check out some of the cheapest Delta flights we've come across from Ontario to San Antonio. Come back soon if you're not finding the exact deal you're looking for.

週三 11/206:00 amONT - SAT

1 stop5h 26mDelta

週三 11/276:05 pmSAT - ONT

1 stop7h 46mDelta

Deal found 6/1$342

週一 6/2410:00 pmONT - SAT

1 stop9h 33mDelta

週三 6/264:55 pmSAT - ONT

1 stop8h 05mDelta

Deal found 5/31$376

週一 7/15:35 amONT - SAT

1 stop5h 59mDelta

週一 7/86:19 pmSAT - ONT

1 stop7h 40mDelta

Deal found 6/1$386

週一 6/1010:00 pmONT - SAT

1 stop9h 33mDelta

週六 6/156:15 pmSAT - ONT

1 stop7h 27mDelta

Deal found 6/2$585

週日 9/155:00 pmONT - SAT

1 stop5h 46mDelta

週六 9/217:05 amSAT - ONT

1 stop7h 10mDelta

Deal found 6/1$876

Cheap Frontier flights from Ontario to San Antonio

Some of the lowest-priced Frontier flights we've found at this time heading from Ontario to San Antonio. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.

週四 8/221:10 pmONT - SAT

1 stop26h 34mFrontier

週六 8/319:19 amSAT - ONT

1 stop16h 25mFrontier

Deal found 6/1$136

週四 8/229:36 pmONT - SAT

1 stop18h 08mFrontier

週六 8/319:19 amSAT - ONT

1 stop16h 25mFrontier

Deal found 6/1$137

週三 8/288:35 pmONT - SAT

1 stop19h 09mFrontier

週三 9/46:40 pmSAT - ONT

1 stop16h 26mFrontier

Deal found 6/1$138

週二 9/1712:49 amONT - SAT

1 stop5h 30mFrontier

週六 9/216:40 pmSAT - ONT

1 stop14h 28mFrontier

Deal found 6/1$147

週日 6/912:59 amONT - SAT

1 stop5h 23mFrontier

週六 6/156:27 pmSAT - ONT

1 stop14h 36mFrontier

Deal found 6/2$150

週日 8/1112:59 amONT - SAT

1 stop19h 00mFrontier

週三 8/289:19 amSAT - ONT

1 stop16h 20mFrontier

Deal found 5/31$154

週五 8/238:35 pmONT - SAT

1 stop19h 09mFrontier

週一 8/266:40 pmSAT - ONT

1 stop20h 07mFrontier

Deal found 6/1$158

週二 8/2712:49 amONT - SAT

1 stop5h 30mFrontier

週三 9/49:19 amSAT - ONT

1 stop16h 20mFrontier

Deal found 6/1$166

週日 8/1112:59 amONT - SAT

1 stop19h 00mFrontier

週二 8/136:40 pmSAT - ONT

1 stop16h 26mFrontier

Deal found 6/1$168

Cheap Ontario to San Antonio flights in June & July 2024

The lowest fares we've come across on flights traveling from Ontario to San Antonio in June and July 2024. For more flight deals, be sure to check back very soon.

週日 6/912:59 amONT - SAT

1 stop5h 23mFrontier

週六 6/156:27 pmSAT - ONT

1 stop14h 36mFrontier

Deal found 6/2$150

週四 6/136:48 pmONT - SAT

1 stop18h 28mFrontier

週一 6/174:19 pmSAT - ONT

1 stop18h 40mFrontier

Deal found 5/31$171

週三 6/1212:49 amONT - SAT

1 stop16h 19mFrontier

週一 6/174:19 pmSAT - ONT

1 stop22h 35mFrontier

Deal found 6/1$173

週三 6/1212:49 amONT - SAT

1 stop16h 19mFrontier

週一 6/174:19 pmSAT - ONT

1 stop22h 35mFrontier

Deal found 6/1$180

週日 6/912:59 amONT - SAT

1 stop5h 23mFrontier

週六 6/156:27 pmSAT - ONT

2 stops14h 41mFrontier

Deal found 6/2$185

週五 6/712:48 amONT - SAT

1 stop6h 53mFrontier

週四 6/139:34 pmSAT - ONT

1 stop21h 54mFrontier

Deal found 6/2$191

週四 6/69:40 pmONT - SAT

1 stop15h 36mFrontier

週四 6/139:34 pmSAT - ONT

1 stop13h 30mFrontier

Deal found 6/2$198

週六 6/812:59 amONT - SAT

1 stop18h 58mFrontier

週一 6/174:19 pmSAT - ONT

1 stop24h 46mFrontier

Deal found 6/1$199

週四 6/2012:59 amONT - SAT

1 stop5h 23mFrontier

週日 6/2310:58 pmSAT - ONT

1 stop9h 25mFrontier

Deal found 6/1$200

Ontario to San Antonio 2024 flight deals

The lowest fares we've come across on flights traveling from Ontario to San Antonio in June and July 2024. For more flight deals, be sure to check back very soon.

週四 8/221:10 pmONT - SAT

1 stop26h 34mFrontier

週六 8/319:19 amSAT - ONT

1 stop16h 25mFrontier

Deal found 6/1$136

週四 8/229:36 pmONT - SAT

1 stop18h 08mFrontier

週六 8/319:19 amSAT - ONT

1 stop16h 25mFrontier

Deal found 6/1$137

週三 8/288:35 pmONT - SAT

1 stop19h 09mFrontier

週三 9/46:40 pmSAT - ONT

1 stop16h 26mFrontier

Deal found 6/1$138

週二 9/1712:49 amONT - SAT

1 stop5h 30mFrontier

週六 9/216:40 pmSAT - ONT

1 stop14h 28mFrontier

Deal found 6/1$147

週日 6/912:59 amONT - SAT

1 stop5h 23mFrontier

週六 6/156:27 pmSAT - ONT

1 stop14h 36mFrontier

Deal found 6/2$150

週日 8/1112:59 amONT - SAT

1 stop19h 00mFrontier

週三 8/289:19 amSAT - ONT

1 stop16h 20mFrontier

Deal found 5/31$154

週五 8/238:35 pmONT - SAT

1 stop19h 09mFrontier

週一 8/266:40 pmSAT - ONT

1 stop20h 07mFrontier

Deal found 6/1$158

週二 8/2712:49 amONT - SAT

1 stop5h 30mFrontier

週三 9/49:19 amSAT - ONT

1 stop16h 20mFrontier

Deal found 6/1$166

週日 8/1112:59 amONT - SAT

1 stop19h 00mFrontier

週二 8/136:40 pmSAT - ONT

1 stop16h 26mFrontier

Deal found 6/1$168

Ontario to San Antonio flights leaving soon

Have a look at some of the last-minute flights available departing from Ontario to San Antonio. To prevent any unwanted surprises, users should verify their flight info before booking.

週日 6/912:59 amONT - SAT

1 stop5h 23mFrontier

週六 6/156:27 pmSAT - ONT

1 stop14h 36mFrontier

Deal found 6/2$150

週三 6/1212:49 amONT - SAT

1 stop16h 19mFrontier

週一 6/174:19 pmSAT - ONT

1 stop22h 35mFrontier

Deal found 6/1$173

週三 6/1212:49 amONT - SAT

1 stop16h 19mFrontier

週一 6/174:19 pmSAT - ONT

1 stop22h 35mFrontier

Deal found 6/1$180

週日 6/912:59 amONT - SAT

1 stop5h 23mFrontier

週六 6/156:27 pmSAT - ONT

2 stops14h 41mFrontier

Deal found 6/2$185

週五 6/712:48 amONT - SAT

1 stop6h 53mFrontier

週四 6/139:34 pmSAT - ONT

1 stop21h 54mFrontier

Deal found 6/2$191

週六 6/812:59 amONT - SAT

1 stop18h 58mFrontier

週一 6/174:19 pmSAT - ONT

1 stop18h 40mFrontier

Deal found 6/1$198

週六 6/812:59 amONT - SAT

1 stop18h 58mFrontier

週一 6/174:19 pmSAT - ONT

1 stop24h 46mFrontier

Deal found 6/1$199

週五 6/710:23 pmONT - SAT

1 stop9h 18mFrontier

週三 6/1210:34 pmSAT - ONT

1 stop27h 25mFrontier

Deal found 6/2$202

週五 6/710:23 pmONT - SAT

1 stop13h 39mFrontier

週六 6/86:27 pmSAT - ONT

1 stop14h 36mFrontier

Deal found 6/1$205

One-way flights to San Antonio from Ontario

Take a look at some of the one-way flights we've detected from Ontario to San Antonio. Those needing a return flight from Ontario to San Antonio can use the search form above.

週五 9/2712:49 amONT - SAT

1 stop5h 30mFrontier

Deal found 6/1$70

週二 9/1012:49 amONT - SAT

1 stop5h 30mFrontier

Deal found 6/1$74

週三 9/115:30 pmONT - SAT

1 stop22h 14mFrontier

Deal found 6/1$80

週一 8/127:19 amONT - SAT

1 stop12h 40mFrontier

Deal found 6/1$97

週五 7/1212:39 amONT - SAT

1 stop5h 46mFrontier

Deal found 6/1$100

週五 6/2812:49 amONT - SAT

1 stop6h 52mFrontier

Deal found 5/31$104

週六 6/812:59 amONT - SAT

1 stop18h 58mFrontier

Deal found 6/1$109

週四 6/2011:59 amONT - SAT

1 stop18h 23mFrontier

Deal found 6/1$110

週六 7/1312:59 amONT - SAT

1 stop18h 58mFrontier

Deal found 6/1$111

Find flights from Ontario to San Antonio within your budget

Fly from

Fly to

Budget

$136 - $396

Route

Depart

Return

Price

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

週四 8/22

1 stop26h 34m

San Antonio

週六 8/31

1 stop16h 25m

$136

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

週四 8/22

1 stop18h 08m

San Antonio

週六 8/31

1 stop16h 25m

$137

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

週三 8/28

1 stop19h 09m

San Antonio

週三 9/4

1 stop16h 26m

$138

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

週二 9/17

1 stop5h 30m

San Antonio

週六 9/21

1 stop14h 28m

$147

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

週日 8/11

1 stop19h 00m

San Antonio

週三 8/28

1 stop16h 20m

$154

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

週四 8/29

1 stop5h 10m

San Antonio

週日 9/1

1 stop5h 54m

$309

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

週三 11/20

1 stop5h 26m

San Antonio

週三 11/27

1 stop7h 46m

$342

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

週二 9/17

1 stop5h 30m

San Antonio

週六 9/21

2 stops12h 33m

$371

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

週四 7/18

1 stop8h 29m

San Antonio

週二 7/23

1 stop5h 33m

$396

Flights are sorted by cheapest first

Deals found on 6/1

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 86 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.

Search Deals

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

Morning

Noon

Afternoon

Evening

All times are departure.

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

Search Deals

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

Temperature and rainfall in San Antonio by month

SAT Temperature	51.8 - 84.2 °F

SAT

Temperature

51.8 - 84.2 °F

Reviews of airlines servicing San Antonio

Peruse reviews from past customers who have flown with Delta, Frontier and American Airlines 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

8.1

Very good

9,198 reviews

Check prices

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Alaska Airlines

8.1

Very good

9,198 reviews

Alaska Airlines

8.1

Very good

9,198 reviews

Check prices

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Delta

8.0

Very good

10,410 reviews

Alaska Airlines

8.1

Very good

9,198 reviews

Check prices

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

United Airlines

7.4

Good

10,755 reviews

Alaska Airlines

8.1

Very good

9,198 reviews

Check prices

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

American Airlines

7.3

Good

14,260 reviews

Alaska Airlines

8.1

Very good

9,198 reviews

Check prices

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Volaris

6.6

Okay

1,468 reviews

Alaska Airlines

8.1

Very good

9,198 reviews

Check prices

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Related info for your journey

Can I find flights from Ontario to San Antonio for under $200 on Cheapflights?
Yes, there are multiple flights from Ontario to San Antonio for under $200. The cheapest flight booked recently is on Frontier for just $136, but on average you can expect to pay $176.
Are there last-minute flights available from Ontario to San Antonio for under $200?
There are currently 20+ open flights from Ontario to San Antonio within the next 7 days for less than $200.
What is the cheapest airline to fly from Ontario to San Antonio round-trip?
According to our current data, Frontier ($136), offers the cheapest pricing from Ontario to San Antonio. Frontier is 61% 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 ($70), United Airlines ($176), and Delta ($193).
What does ONT to SAT mean?
This is defined as Ontario Airport (ONT) and San Antonio Airport (SAT). Codes like San Antonio Airport are often used to just call airports uniquely.
Can I find deals for flights from Ontario to San Antonio that include extra baggage allowance?
The amount of baggage you can bring on your Ontario to San Antonio flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.
Can I find deals on flights from Ontario to San Antonio with specific airlines?
Yes, Cheapflights allows you to browse and filter Ontario to San Antonio flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.
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.
Can I find deals for flights from Ontario to San Antonio that allow pets onboard?
Many airlines flying from Ontario to San Antonio offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.
Can I find deals on last-minute flights from Ontario to San Antonio?
Yes, you can often find last-minute deals on Ontario to San Antonio flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.
How recently were the Ontario to San Antonio flight deals updated?
The Ontario to San Antonio flight deals you see on this page were last updated on 6/2.
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 month to book a flight from Ontario to San Antonio?
Currently, September is the cheapest month in which you can book a flight from Ontario to San Antonio (average of $291). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Ontario to San Antonio
See prices for flight routes from nearby airports that may be better suited for you.

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Other flights to San Antonio
Explore flights to San Antonio departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 6月 2, 2024.

Top 5 airlines flying from Ontario to San Antonio

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$94	Average$148	FlexibilityNo cancel fee	On-time65%	Search Spirit Airlines flights
Frontier	Cheapest$119	Average$194	FlexibilityNo cancel fee	On-time62%	Search Frontier flights
Delta	Cheapest$211	Average$382	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
American Airlines	Cheapest$255	Average$431	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
United Airlines	Cheapest$272	Average$461	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

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How does Cheapflights help users find flights from Ontario to San Antonio?

Cheapflights helps you search for flights from Ontario to San Antonio via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Ontario to San Antonio?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Antonio from Ontario.

Can Cheapflights find flights from Ontario to San Antonio with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Ontario to San Antonio flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Ontario to San Antonio become cheaper?

Not ready to book yet? You can track prices for flights from Ontario to San Antonio on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Ontario to San Antonio (ONT - SAT) from $70

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 9/27. 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.

The best prices from Ontario to San Antonio are usually found in January or February, booked 86 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap flight deals from Ontario to San Antonio

Popular in

Cheapest in

Round-trip from

One-way from

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

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

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

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

Cheap Delta flights from Ontario to San Antonio

Check out some of the cheapest Delta flights we've come across from Ontario to San Antonio. Come back soon if you're not finding the exact deal you're looking for.

Cheap Frontier flights from Ontario to San Antonio

Some of the lowest-priced Frontier flights we've found at this time heading from Ontario to San Antonio. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.

Cheap Ontario to San Antonio flights in June & July 2024

Find cheap flight options from Ontario to San Antonio specifically for the months of June and July 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,810,401 searches. Prices were last updated on 6月 2, 2024.

The lowest fares we've come across on flights traveling from Ontario to San Antonio in June and July 2024. For more flight deals, be sure to check back very soon.

Ontario to San Antonio 2024 flight deals

Discover exclusive flight deals for travel between Ontario and San Antonio in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,810,401 searches. Data last updated 6月 2, 2024.

The lowest fares we've come across on flights traveling from Ontario to San Antonio in June and July 2024. For more flight deals, be sure to check back very soon.

Ontario to San Antonio flights leaving soon

Have a look at some of the last-minute flights available departing from Ontario to San Antonio. To prevent any unwanted surprises, users should verify their flight info before booking.

One-way flights to San Antonio from Ontario

Take a look at some of the one-way flights we've detected from Ontario to San Antonio. Those needing a return flight from Ontario to San Antonio can use the search form above.

Find flights from Ontario to San Antonio within your budget

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 May 31, 2024.

The best time to book flights from Ontario to San Antonio is 86 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 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 May 26, 2024.

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.

Temperature and rainfall in San Antonio by month

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

Reviews of airlines servicing San Antonio

Peruse reviews from past customers who have flown with Delta, Frontier and American Airlines 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.

Can I find flights from Ontario to San Antonio for under $200 on Cheapflights?

Are there last-minute flights available from Ontario to San Antonio for under $200?

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

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

What does ONT to SAT mean?

Can I find deals for flights from Ontario to San Antonio that include extra baggage allowance?

Can I find deals on flights from Ontario to San Antonio with specific airlines?

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?

Can I find deals for flights from Ontario to San Antonio that allow pets onboard?

Can I find deals on last-minute flights from Ontario to San Antonio?

How recently were the Ontario to San Antonio flight deals updated?

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to San AntonioSee prices for flight routes from nearby airports that may be better suited for you.

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Ontario to San Antonio

Popular flight searches

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Search flights from Ontario to San Antonio by cabin class

Find flights from Ontario to San Antonio, based on your preferred cabin class, be it economy, premium economy, business, or first class.

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Alternative routes for Ontario to San Antonio
See prices for flight routes from nearby airports that may be better suited for you.