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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 6/14. 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.
ONT — SAT
Jun 12 — Jun 191
From?
To?
Wed 6/12
Wed 6/19
1 adult, Economy
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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 Friday

Cheap flight deals from Ontario to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to San Antonio (SAT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 7, 2024.

Popular in

April

Cheapest in

January

Round-trip from

$292

One-way from

$70
High demand for flights, 19% potential price rise
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Best time to find cheap flights, 22% potential price drop
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From Ontario to San Antonio
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One-way flight from Ontario to San Antonio
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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 $377 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 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 3,048,502 searches. Prices were last updated on June 7, 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.
Wed 7/3112:49 amONT - SAT
1 stop16h 15mFrontier
Mon 8/510:59 pmSAT - ONT
1 stop27h 00mFrontier
Deal found 6/5$157
Wed 7/178:17 amONT - SAT
1 stop10h 43mFrontier
Mon 7/2910:59 pmSAT - ONT
1 stop10h 28mFrontier
Deal found 6/6$158
Wed 7/1012:39 amONT - SAT
1 stop16h 25mFrontier
Mon 7/1510:59 pmSAT - ONT
1 stop10h 28mFrontier
Deal found 6/6$159
Tue 7/1612:59 amONT - SAT
1 stop18h 01mFrontier
Mon 7/2910:59 pmSAT - ONT
1 stop10h 28mFrontier
Deal found 6/6$166
Wed 6/128:03 amONT - SAT
1 stop11h 30mFrontier
Sat 6/153:02 pmSAT - ONT
1 stop10h 47mFrontier
Deal found 6/5$169
Wed 6/128:41 pmONT - SAT
1 stop22h 03mFrontier
Sun 6/1610:58 pmSAT - ONT
1 stop27h 01mFrontier
Deal found 6/4$172
Thu 6/131:03 pmONT - SAT
1 stop24h 13mFrontier
Sat 6/156:27 pmSAT - ONT
1 stop14h 36mFrontier
Deal found 6/5$175
Fri 6/2812:49 amONT - SAT
1 stop6h 52mFrontier
Sat 7/66:28 pmSAT - ONT
1 stop14h 35mFrontier
Deal found 6/5$176
Tue 6/255:26 pmONT - SAT
1 stop22h 44mFrontier
Mon 7/810:31 pmSAT - ONT
1 stop27h 28mFrontier
Deal found 6/6$177

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 3,048,502 searches. Data last updated June 7, 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.
Fri 8/1612:49 amONT - SAT
1 stop5h 30mFrontier
Tue 9/176:40 pmSAT - ONT
1 stop20h 42mFrontier
Deal found 6/5$136
Sun 8/181:10 pmONT - SAT
1 stop17h 09mFrontier
Sun 8/256:40 pmSAT - ONT
1 stop20h 21mFrontier
Deal found 6/4$137
Mon 8/1912:51 pmONT - SAT
1 stop26h 53mFrontier
Fri 8/236:40 pmSAT - ONT
1 stop25h 26mFrontier
Deal found 6/5$138
Tue 8/2012:49 amONT - SAT
1 stop5h 30mFrontier
Tue 8/276:40 pmSAT - ONT
1 stop25h 29mFrontier
Deal found 6/5$145
Fri 8/308:27 pmONT - SAT
1 stop9h 52mFrontier
Mon 9/26:40 pmSAT - ONT
1 stop25h 29mFrontier
Deal found 6/5$149
Thu 9/191:10 pmONT - SAT
1 stop26h 34mFrontier
Mon 9/236:40 pmSAT - ONT
1 stop16h 26mFrontier
Deal found 6/4$150
Thu 9/512:49 amONT - SAT
1 stop5h 30mFrontier
Mon 9/96:40 pmSAT - ONT
1 stop25h 29mFrontier
Deal found 6/4$152
Thu 8/112:59 amONT - SAT
1 stop5h 16mFrontier
Sat 8/1010:44 pmSAT - ONT
1 stop27h 15mFrontier
Deal found 6/6$154
Fri 8/24:12 pmONT - SAT
1 stop23h 17mFrontier
Sat 8/106:20 pmSAT - ONT
1 stop14h 43mFrontier
Deal found 6/6$155

Ontario to San Antonio flights leaving soon

Find last-minute flight options from Ontario to San Antonio for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,048,502 searches. Data last updated June 7, 2024.
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.
Wed 6/128:03 amONT - SAT
1 stop11h 30mFrontier
Sat 6/153:02 pmSAT - ONT
1 stop10h 47mFrontier
Deal found 6/5$169
Wed 6/128:41 pmONT - SAT
1 stop22h 03mFrontier
Sun 6/1610:58 pmSAT - ONT
1 stop27h 01mFrontier
Deal found 6/4$172
Thu 6/131:03 pmONT - SAT
1 stop24h 13mFrontier
Sat 6/156:27 pmSAT - ONT
1 stop14h 36mFrontier
Deal found 6/5$175
Wed 6/128:08 amONT - SAT
2 stops7h 59mFrontier
Sat 6/153:02 pmSAT - ONT
1 stop10h 47mFrontier
Deal found 6/5$194
Thu 6/139:40 pmONT - SAT
1 stop15h 36mFrontier
Sun 6/2310:58 pmSAT - ONT
1 stop26h 46mFrontier
Deal found 6/6$197
Thu 6/131:03 pmONT - SAT
1 stop24h 13mFrontier
Mon 6/174:19 pmSAT - ONT
1 stop22h 35mFrontier
Deal found 6/5$198
Thu 6/136:48 pmONT - SAT
1 stop18h 28mFrontier
Thu 6/209:34 pmSAT - ONT
1 stop21h 34mFrontier
Deal found 6/6$199
Thu 6/136:48 pmONT - SAT
1 stop18h 28mFrontier
Sun 6/1610:58 pmSAT - ONT
1 stop27h 01mFrontier
Deal found 6/6$201
Sun 6/1612:59 amONT - SAT
1 stop5h 23mFrontier
Thu 6/209:34 pmSAT - ONT
1 stop21h 34mFrontier
Deal found 6/5$202

One-way flights to San Antonio from Ontario

Search for one-way flight options from Ontario to San Antonio. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,048,502 searches. Data last updated June 7, 2024.
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.
Fri 6/1412:44 amONT - SAT
1 stop6h 57mFrontier
Deal found 6/6$70
Wed 8/285:30 pmONT - SAT
1 stop22h 14mFrontier
Deal found 6/6$81
Wed 7/108:17 amONT - SAT
1 stop10h 48mFrontier
Deal found 6/6$85
Sun 7/712:59 amONT - SAT
1 stop18h 32mFrontier
Deal found 6/6$89
Fri 6/2810:23 pmONT - SAT
1 stop9h 18mFrontier
Deal found 6/6$90
Thu 6/139:40 pmONT - SAT
1 stop15h 36mFrontier
Deal found 6/6$95
Sun 6/2312:59 amONT - SAT
1 stop5h 23mFrontier
Deal found 6/6$99
Fri 7/512:40 amONT - SAT
1 stop5h 45mFrontier
Deal found 6/6$100
Thu 6/2012:59 amONT - SAT
1 stop5h 23mFrontier
Deal found 6/6$104

Find flights from Ontario to San Antonio within your budget

Customize your flight search to find flights from Ontario to San Antonio that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 3,048,502 searches. Data last updated June 7, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$138 - $346

Route

Depart

Return

Price

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

Mon 9/2

1 stop26h 53m

San Antonio

Fri 9/6

1 stop25h 26m

$138

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

Thu 8/15

1 stop5h 30m

San Antonio

Tue 9/17

1 stop16h 26m

$148

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

Fri 8/30

1 stop9h 52m

San Antonio

Mon 9/2

1 stop25h 29m

$149

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

Fri 8/9

1 stop21h 41m

San Antonio

Mon 8/12

1 stop26h 40m

$150

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

Thu 8/1

1 stop5h 16m

San Antonio

Sat 8/10

1 stop27h 15m

$154

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

Sat 8/24

2 stops8h 13m

San Antonio

Sat 8/31

1 stop5h 00m

$291

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

Fri 8/16

1 stop9h 52m

San Antonio

Tue 9/17

2 stops16h 45m

$292

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

Fri 8/2

1 stop7h 23m

San Antonio

Sat 8/10

2 stops9h 48m

$311

OntarioSan Antonio

ONT - SAT

ONTSAT

Ontario

Fri 10/11

1 stop9h 46m

San Antonio

Mon 10/14

1 stop7h 46m

$346

Flights are sorted by cheapest first

Deals found on 6/6

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.
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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 June 2, 2024.
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
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.

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.

SAT

Temperature

51.8 - 84.2 °F

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

Get insights into the airlines that provide service to San Antonio. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Antonio. Reviews last updated June 7, 2024.
Peruse reviews from past customers who have flown with Frontier, United Airlines 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
9,231 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.6

Entertainment

7.3

Overall

8.1

Reviews

1 / 10

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

Alaska Airlines
8.1
Very good
9,231 reviews
Alaska Airlines
8.1
Very good
9,231 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.6

Entertainment

7.3

Overall

8.1

Reviews

1 / 10

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

Delta
8.0
Very good
10,363 reviews
Alaska Airlines
8.1
Very good
9,231 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.6

Entertainment

7.3

Overall

8.1

Reviews

1 / 10

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

United Airlines
7.4
Good
10,696 reviews
Alaska Airlines
8.1
Very good
9,231 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.6

Entertainment

7.3

Overall

8.1

Reviews

1 / 10

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

American Airlines
7.3
Good
14,226 reviews
Alaska Airlines
8.1
Very good
9,231 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.6

Entertainment

7.3

Overall

8.1

Reviews

1 / 10

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

Volaris
6.6
Okay
1,460 reviews
Alaska Airlines
8.1
Very good
9,231 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.6

Entertainment

7.3

Overall

8.1

Reviews

1 / 10

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

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?

    Yes, there are multiple flights from Ontario to San Antonio for under $200. The cheapest flight booked recently is on Frontier for just $138, but on average you can expect to pay $163.

  • 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 ($138), 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 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 6/6.

  • 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 $292). 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.

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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.

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Top 5 airlines flying from Ontario to San Antonio

Discover the top 5 airlines that operate flights from Ontario to San Antonio. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,048,502 searches. Data last updated June 7, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$94Average$142FlexibilityNo cancel feeOn-time65%
FrontierCheapest$120Average$194FlexibilityNo cancel feeOn-time62%
DeltaCheapest$209Average$378FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$250Average$431FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$272Average$461FlexibilityNo cancel feeOn-time69%
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Washington, D.C. to Boston flights
Kansas City to Orlando flights
Boston to Rome flights
Dallas to Toronto flights
Houston to Paris flights
Seattle to Chicago flights
Los Angeles to Chicago O'Hare Intl Airport flights
Ontario to Savannah flights

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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