$110+ 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 5/9. 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
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 San Antonio to Ontario are usually found in February or August, booked 52 days in advance, depart on a Friday or Wednesday and return on a Wednesday
Cheap flight deals from San Antonio to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Ontario (ONT). 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 March 25, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $258 (Frontier) |
One-way from | $110 (Trip.com) |
Popular in | October |
Cheapest in | February |
Average price | $370 |
Find 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 March 25, 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 March 25, 2025.
This Frontier deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This United Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Alaska Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Travelocity deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Hawaiian Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cheapflights Fare Finder
Customize your flight search to find flights from San Antonio to Ontario 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 2,558,603 searches. Data last updated March 25, 2025.
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
Sun 6/1
7:50 pm-11:50 pm
1 stop6h 00m
Ontario
Sat 6/7
6:00 am-3:01 pm
1 stop7h 01m
San AntonioOntario
SAT - ONT
SATONT
San Antonio
Wed 5/21
7:45 am-12:15 pm
1 stop6h 30m
Ontario
Sun 5/25
12:18 pm-12:21 am
1 stop10h 03m
San AntonioOntario
SAT - ONT
SATONT
San Antonio
Mon 4/21
7:45 pm-11:00 pm
1 stop5h 15m
Ontario
Mon 4/28
2:55 pm-12:05 am
2 stops7h 10m
San AntonioOntario
SAT - ONT
SATONT
San Antonio
Fri 5/30
5:59 pm-9:10 pm
1 stop5h 11m
Ontario
Thu 6/5
1:33 pm-9:04 pm
1 stop5h 31m
San AntonioOntario
SAT - ONT
SATONT
San Antonio
Thu 5/8
6:35 am-3:32 pm
1 stop10h 57m
Ontario
Tue 5/13
11:46 am-11:59 pm
1 stop10h 13m
San AntonioOntario
SAT - ONT
SATONT
San Antonio
Wed 4/23
6:35 am-3:32 pm
1 stop10h 57m
Ontario
Sat 5/3
11:46 am-11:59 pm
1 stop10h 13m
San AntonioOntario
SAT - ONT
SATONT
San Antonio
Wed 5/28
5:30 am-5:39 pm
3 stops14h 09m
Ontario
Wed 6/4
7:20 pm-5:10 am
1 stop7h 50m
San AntonioOntario
SAT - ONT
SATONT
San Antonio
Fri 5/9
10:51 pm-9:27 pm
1 stop24h 36m
San AntonioOntario
SAT - ONT
SATONT
San Antonio
Sun 5/4
8:25 pm-11:59 pm
1 stop5h 34m
San AntonioOntario
SAT - ONT
SATONT
San Antonio
Wed 5/7
8:53 am-11:50 am
1 stop4h 57m
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 March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on San Antonio-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-Ontario flight deals on Cheapflights vs. FlightHub >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 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 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.
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?
Use this chart to determine the optimal time to book a round-trip flight from San Antonio to Ontario. Price data was last updated on March 21, 2025.
Booking 52 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, August is the cheapest month in which you can book a flight from San Antonio to Ontario (average of $246). Flying from San Antonio to Ontario in March is currently the most expensive (average of $324). 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?
Find hourly flight availability from San Antonio to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 25, 2025.
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 33% on airfare.
Rainfall in Ontario by month
Plan your trip to Ontario by taking into account the average rainfall totals by month.
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.
Temperature in Ontario by month
Plan your trip to Ontario by taking into account the average temperature totals by month.
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).
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated March 25, 2025.
To help decide which airline to fly from San Antonio to Ontario, see what other customers have to say about Alaska Airlines, Southwest and Delta. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
Boarding
Comfort
Food
Entertainment
Overall
Reviews
Seleste,Dec 2024
FAT - SAN
Crew
Boarding
Comfort
Food
Entertainment
Overall
Reviews
Seleste,Dec 2024
FAT - SAN
Crew
Boarding
Comfort
Food
Entertainment
Overall
Reviews
Seleste,Dec 2024
FAT - SAN
Crew
Boarding
Comfort
Food
Entertainment
Overall
Reviews
Seleste,Dec 2024
FAT - SAN
Crew
Boarding
Comfort
Food
Entertainment
Overall
Reviews
Seleste,Dec 2024
FAT - SAN
Crew
Boarding
Comfort
Food
Entertainment
Overall
Reviews
Seleste,Dec 2024
FAT - SAN
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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Alternative routes for San Antonio to Ontario
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from San Antonio to Ontario
Discover the top 6 airlines that operate flights from San Antonio to Ontario. 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 2,558,603 searches. Data last updated March 25, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$43 | Average$164 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$118 | Average$204 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$173 | Average$409 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$256 | Average$374 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$308 | Average$394 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$326 | Average$436 | FlexibilityNo cancel fee | On-time69% |