What’s the top layover airport for flights from San Antonio to Ontario?

Phoenix (PHX) – chosen by Cheapflights users on 50% of 1-stop itineraries from San Antonio to Ontario on Cheapflights.

Which airport typically offers the quickest layover for flights from San Antonio to Ontario?

Flights via Phoenix (PHX) offer the fastest connection on this route, with an average layover time of 1h 16m.

What’s the cheapest layover airport for flights from San Antonio to Ontario?

Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $191.

What’s the fastest layover option from San Antonio to Ontario?

Flights via Phoenix (PHX) have the shortest average one-way travel time for 1-stop routes: 5h 02m.

How long is the flight from San Antonio to Ontario?

Departing from San Antonio to Ontario will take you 6h 22m. San Antonio and Ontario are separated by a distance of 1163 mi.

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

Our cheapest airline available from San Antonio to Ontario is Spirit Airlines. Our recent data shows that you can find tickets from as low as $74 on this airline. Additional options worth looking into are Delta and Frontier, starting at $110 and $115 round-trip. Users have found that Spirit Airlines is 77% cheaper than the other options available to this destination.

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

$72 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from $92 and $118, respectively.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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

Before booking your flight from San Antonio to Ontario check out the most popular airlines for this route: Southwest, American Airlines or Frontier.

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

Most trusted provider : When it comes to deals on San Antonio-Ontario flights, Cheapflights users trust CheapOair the most. CheapOair 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 San Antonio-Ontario 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 San Antonio to Ontario that include hotel bookings?

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

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

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

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

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

$62+ Flights from San Antonio to Ontario

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Find cheap flights from San Antonio to Ontario 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

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Cheapflights Tip: The best prices from San Antonio to Ontario are usually found in February or November, booked 11 days in advance, depart on a Friday or Wednesday and return on a Wednesday

Cheap flight deals from San Antonio to Ontario

Cheapest flights from San Antonio to Ontario
Explore the most affordable flight options available from San Antonio to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 16, 2025.

mié. 12/242:09 pmSAT - ONT

1 stop11h 50mFrontier

mié. 12/316:45 amONT - SAT

1 stop15h 32mFrontier

Deal found 12/16

$173

mié. 12/242:09 pmSAT - ONT

1 stop11h 50mFrontier

jue. 1/810:18 pmONT - SAT

1 stop11h 31mFrontier

Deal found 12/15

$182

mié. 12/316:45 amSAT - ONT

1 stop19h 14mFrontier

sáb. 1/103:21 pmONT - SAT

1 stop18h 48mFrontier

Deal found 12/15

$183

jue. 12/252:09 pmSAT - ONT

1 stop11h 50mFrontier

sáb. 1/107:00 amONT - SAT

1 stop6h 00mFrontier

Deal found 12/15

$207

mié. 12/242:09 pmSAT - ONT

1 stop11h 50mFrontier

jue. 1/16:45 amONT - SAT

1 stop15h 32mFrontier

Deal found 12/16

$208

mié. 12/242:09 pmSAT - ONT

1 stop11h 50mFrontier

dom. 1/1110:18 pmONT - SAT

1 stop10h 42mFrontier

Deal found 12/15

$217

lun. 12/222:01 pmSAT - ONT

1 stop5h 14mFrontier

mié. 1/77:00 amONT - SAT

1 stop6h 00mFrontier

Deal found 12/15

$233

mié. 12/242:09 pmSAT - ONT

1 stop11h 50mFrontier

mar. 1/67:00 amONT - SAT

1 stop6h 00mFrontier

Deal found 12/15

$242

mar. 12/232:01 pmSAT - ONT

1 stop5h 21mFrontier

mié. 1/77:00 amONT - SAT

1 stop6h 00mFrontier

Deal found 12/15

$253

dom. 12/212:01 pmSAT - ONT

1 stop5h 41mFrontier

mié. 1/77:00 amONT - SAT

1 stop6h 00mFrontier

Deal found 12/15

$267

lun. 12/222:01 pmSAT - ONT

1 stop9h 16mFrontier

dom. 1/1110:18 pmONT - SAT

1 stop10h 42mFrontier

Deal found 12/15

$268

dom. 12/212:01 pmSAT - ONT

1 stop9h 26mFrontier

mié. 12/316:45 amONT - SAT

1 stop15h 32mFrontier

Deal found 12/15

$274

Best flights from San Antonio to Ontario
Discover carefully curated flight deals from San Antonio to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated diciembre 16, 2025.

mié. 3/45:12 pmSAT - ONT

1 stop6h 22mFrontier

lun. 3/96:15 amONT - SAT

1 stop16h 02mFrontier

Deal found 12/16

$165

sáb. 1/35:10 amSAT - ONT

1 stop20h 11mMultiple Airlines

mié. 1/710:45 amONT - SAT

1 stop22h 15mMultiple Airlines

Deal found 12/16

$209

mar. 1/131:40 pmSAT - ONT

1 stop9h 25mDelta

mar. 1/2012:41 pmONT - SAT

1 stop9h 57mDelta

Deal found 12/16

$307

mar. 1/132:15 pmSAT - ONT

2 stops10h 38mUnited Airlines

mar. 1/205:05 amONT - SAT

1 stop6h 04mUnited Airlines

Deal found 12/16

$312

mar. 1/66:35 amSAT - ONT

2 stops7h 40mSouthwest

sáb. 1/105:30 amONT - SAT

2 stops7h 00mSouthwest

Deal found 12/16

$345

sáb. 1/36:45 amSAT - ONT

2 stops18h 36mFrontier

mié. 1/710:45 amONT - SAT

1 stop22h 15mFrontier

Deal found 12/16

$211

jue. 1/154:06 pmSAT - ONT

1 stop9h 53mFrontier

dom. 1/256:20 amONT - SAT

1 stop11h 09mFrontier

Deal found 12/15

$217

dom. 1/183:57 pmSAT - ONT

1 stop10h 02mFrontier

vie. 1/2310:18 amONT - SAT

1 stop8h 46mFrontier

Deal found 12/15

$252

lun. 1/57:35 amSAT - ONT

1 stop6h 41mDelta

lun. 1/1210:30 pmONT - SAT

1 stop9h 43mDelta

Deal found 12/15

$319

vie. 1/92:06 pmSAT - ONT

2 stops10h 47mUnited Airlines

dom. 1/116:39 pmONT - SAT

2 stops12h 02mUnited Airlines

Deal found 12/15

$329

jue. 1/89:50 amSAT - ONT

2 stops9h 53mUnited Airlines

sáb. 1/106:00 amONT - SAT

2 stops8h 53mUnited Airlines

Deal found 12/15

$329

vie. 1/166:20 pmSAT - ONT

1 stop6h 18mDelta

mar. 1/276:00 amONT - SAT

1 stop5h 48mDelta

Deal found 12/15

$345

Last-minute flights from San Antonio to Ontario
Discover last-minute flight deals from San Antonio to Ontario. Data last updated diciembre 16, 2025 and is based on user searches.

mié. 12/242:09 pmSAT - ONT

1 stop11h 50mFrontier

mié. 12/316:45 amONT - SAT

1 stop15h 32mFrontier

Deal found 12/16

$173

mié. 12/242:09 pmSAT - ONT

1 stop11h 50mFrontier

jue. 1/810:18 pmONT - SAT

1 stop11h 31mFrontier

Deal found 12/15

$182

mié. 12/242:09 pmSAT - ONT

1 stop11h 50mFrontier

jue. 1/16:45 amONT - SAT

1 stop15h 32mFrontier

Deal found 12/16

$208

jue. 12/252:09 pmSAT - ONT

1 stop11h 50mFrontier

mié. 1/77:00 amONT - SAT

1 stop6h 00mFrontier

Deal found 12/15

$207

mié. 12/316:45 amSAT - ONT

1 stop19h 14mFrontier

sáb. 1/103:21 pmONT - SAT

1 stop18h 48mFrontier

Deal found 12/15

$183

sáb. 1/35:10 amSAT - ONT

1 stop20h 11mMultiple Airlines

mié. 1/710:45 amONT - SAT

1 stop22h 15mMultiple Airlines

Deal found 12/16

$209

sáb. 1/36:45 amSAT - ONT

2 stops18h 36mFrontier

mié. 1/710:45 amONT - SAT

1 stop22h 15mFrontier

Deal found 12/16

$211

mar. 1/63:55 pmSAT - ONT

1 stop8h 17mFrontier

sáb. 1/107:00 amONT - SAT

1 stop6h 00mFrontier

Deal found 12/16

$163

mié. 1/73:55 pmSAT - ONT

1 stop9h 19mFrontier

dom. 1/1110:18 pmONT - SAT

1 stop10h 42mFrontier

Deal found 12/16

$217

jue. 1/810:13 amSAT - ONT

2 stops23h 23mFrontier

sáb. 1/107:00 amONT - SAT

1 stop6h 00mFrontier

Deal found 12/15

$231

vie. 1/910:13 amSAT - ONT

1 stop15h 43mFrontier

mié. 1/147:15 amONT - SAT

1 stop24h 15mFrontier

Deal found 12/16

$218

One-way flights from San Antonio to Ontario
Search for one-way flight options from San Antonio to Ontario. Find affordable one-way fares based on user searches. Data last updated diciembre 16, 2025.

mié. 1/73:55 pmSAT - ONT

1 stop9h 19mFrontier

Deal found 12/15

$62

lun. 3/23:50 pmSAT - ONT

1 stop23h 21mFrontier

Deal found 12/15

$63

mar. 2/105:12 pmSAT - ONT

1 stop6h 22mFrontier

Deal found 12/16

$64

mié. 3/45:12 pmSAT - ONT

1 stop6h 22mFrontier

Deal found 12/16

$65

sáb. 2/217:56 pmSAT - ONT

1 stop14h 03mFrontier

Deal found 12/16

$71

jue. 1/811:55 amSAT - ONT

1 stop6h 25mFrontier

Deal found 12/14

$73

lun. 2/21:20 pmSAT - ONT

1 stop7h 50mFrontier

Deal found 12/15

$74

dom. 2/11:15 pmSAT - ONT

1 stop8h 17mFrontier

Deal found 12/15

$76

mar. 1/63:55 pmSAT - ONT

1 stop8h 17mFrontier

Deal found 12/15

$82

mié. 12/316:45 amSAT - ONT

1 stop19h 14mFrontier

Deal found 12/15

$88

jue. 1/298:24 pmSAT - ONT

1 stop5h 56mFrontier

Deal found 12/16

$91

Find flight deals from San Antonio to Ontario

Most accurate provider	CheapOair 3 stars
Most trusted provider	CheapOair 3 stars
Round-trip from	$165 (CheapOair)
One-way from	$62 (Trip.com)
Popular in	July
Cheapest in	February
Average price	$393

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

Search Deals

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

Search Deals

From San Antonio to Ontario

Search Deals

One-way flight from San Antonio to Ontario

Search Deals

Highest demand for flights based on searches. 10% potential increase in price ($40 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($10 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

San AntonioOntario

SAT - ONT

SATONT

San Antonio

mié. 3/4

5:12 pm-9:34 pm

1 stop6h 22m

Ontario

lun. 3/9

6:15 am-12:17 am

1 stop16h 02m

$165

San AntonioOntario

SAT - ONT

SATONT

San Antonio

sáb. 1/3

5:10 am-11:21 pm

1 stop20h 11m

Ontario

mié. 1/7

10:45 am-11:00 am

1 stop22h 15m

$209

San AntonioOntario

SAT - ONT

SATONT

San Antonio

sáb. 1/3

6:45 am-11:21 pm

2 stops18h 36m

Ontario

mié. 1/7

10:45 am-11:00 am

1 stop22h 15m

$211

San AntonioOntario

SAT - ONT

SATONT

San Antonio

jue. 1/15

4:06 pm-11:59 pm

1 stop9h 53m

Ontario

dom. 1/25

6:20 am-7:29 pm

1 stop11h 09m

$217

San AntonioOntario

SAT - ONT

SATONT

San Antonio

dom. 1/18

3:57 pm-11:59 pm

1 stop10h 02m

Ontario

vie. 1/23

10:18 am-9:04 pm

1 stop8h 46m

$252

San AntonioOntario

SAT - ONT

SATONT

San Antonio

mar. 1/13

1:40 pm-9:05 pm

1 stop9h 25m

Ontario

mar. 1/20

12:41 pm-12:38 am

1 stop9h 57m

$307

San AntonioOntario

SAT - ONT

SATONT

San Antonio

mar. 1/13

2:15 pm-10:53 pm

2 stops10h 38m

Ontario

mar. 1/20

5:05 am-1:09 pm

1 stop6h 04m

$312

San AntonioOntario

SAT - ONT

SATONT

San Antonio

lun. 1/5

7:35 am-12:16 pm

1 stop6h 41m

Ontario

lun. 1/12

10:30 pm-10:13 am

1 stop9h 43m

$319

San AntonioOntario

SAT - ONT

SATONT

San Antonio

vie. 1/9

2:06 pm-10:53 pm

2 stops10h 47m

Ontario

dom. 1/11

6:39 pm-8:41 am

2 stops12h 02m

$329

San AntonioOntario

SAT - ONT

SATONT

San Antonio

jue. 1/8

9:50 am-5:43 pm

2 stops9h 53m

Ontario

sáb. 1/10

6:00 am-4:53 pm

2 stops8h 53m

$329

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Showing 1-10 of 24 results

Compare providers for flights from San Antonio to Ontario

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

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars
CheapOair	Price Accuracy3 stars	Trust Score*3 stars
Cheapfaremart	Price Accuracy-	Trust Score*1 star
JustAirTicket	Price Accuracy-	Trust Score*1 star

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

Have a flexible travel schedule? Discover the best time to fly to Ontario from San Antonio 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 San Antonio to Ontario

Prices

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

Booking 11 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Antonio to Ontario. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, September is the cheapest month in which you can book a flight from San Antonio to Ontario (average of $60). Flying from San Antonio to Ontario in March is currently the most expensive (average of $105). 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 SAT to ONT?

One of the essential ways to save on airfare from San Antonio to Ontario is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 32% on airfare.

Reviews of airlines servicing Ontario

Read through reviews of airlines operating flights from San Antonio to Ontario, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Southwest

7.9

Good

4,250 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Delta

7.9

Good

8,008 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

United Airlines

7.4

Good

9,092 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

American Airlines

7.2

Good

11,049 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Frontier

5.8

Fair

3,082 reviews

Southwest

7.9

Good

4,250 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Related info for your journey

How long is the flight from San Antonio to Ontario?
Departing from San Antonio to Ontario will take you 6h 22m. San Antonio and Ontario are separated by a distance of 1163 mi.
What are the cheapest airlines flying from San Antonio to Ontario round-trip?
Our cheapest airline available from San Antonio to Ontario is Spirit Airlines. Our recent data shows that you can find tickets from as low as $74 on this airline. Additional options worth looking into are Delta and Frontier, starting at $110 and $115 round-trip. Users have found that Spirit Airlines is 77% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from San Antonio to Ontario one-way?
$72 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from $92 and $118, respectively.
Can I find deals for flights from San Antonio to Ontario that include hotel bookings?
Yes. In addition to deals on San Antonio to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Antonio to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Ontario.
Can I find deals for business class flights from San Antonio to Ontario?
Yes. Cheapflights offers flight deals from San Antonio to Ontario 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 San Antonio to Ontario?
Currently, September is the cheapest month in which you can book a flight from San Antonio to Ontario (average of $60). Flying from San Antonio to Ontario in March is currently the most expensive (average of $105). 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

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Other flights to Ontario

Top 6 airlines flying from San Antonio to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$111	Average$147	FlexibilityNo cancel fee	On-time65%
Frontier	Cheapest$115	Average$226	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$158	Average$256	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$236	Average$375	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$295	Average$388	FlexibilityNo cancel fee	On-time63%
United Airlines	Cheapest$301	Average$446	FlexibilityNo cancel fee	On-time69%

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$62+ Cheap flights from San Antonio to Ontario (SAT - ONT)

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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Antonio to Ontario 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 San Antonio to Ontario are usually found in February or November, booked 11 days in advance, depart on a Friday or Wednesday and return on a Wednesday

Cheap flight deals from San Antonio to Ontario

Cheapest flights from San Antonio to OntarioExplore the most affordable flight options available from San Antonio to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 16, 2025.

Explore the most affordable flight options available from San Antonio to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 16, 2025.

Find flight deals from San Antonio to Ontario

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

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

Compare providers for flights from San Antonio to Ontario

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 San Antonio to Ontario in December.

Best time to book a flight from San Antonio to Ontario

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

Cheapflights Insights

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

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

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

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What’s the cheapest layover airport for flights from San Antonio to Ontario?

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Reviews of airlines servicing Ontario

Read through reviews of airlines operating flights from San Antonio to Ontario, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

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

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Alternative routes for San Antonio to Ontario

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Top 6 airlines flying from San Antonio to Ontario

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Cheapest flights from San Antonio to Ontario
Explore the most affordable flight options available from San Antonio to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 16, 2025.