Cheap flights from Ontario to San Antonio from £187
Trusted by millions
Kiwi.com Guarantee for stress-free travel
One search, all the best deals
Explore flight deals to San Antonio
Prices updated:
Not happy with the results? Try some of our useful filters
Search by stops
- Nonstop
- Up to 1 stop
- Up to 2 stops
Search by carrier
Search by price
Search by departure date
Prices updated:
Not happy with the results? Try some of our useful filters
Search by stops
- Nonstop
- Up to 1 stop
- Up to 2 stops
Search by carrier
Search by price
Search by departure date
How much do flights to San Antonio cost?
Cheapest one-way trip | £187 |
|---|---|
Cheapest round-trip | £345 |
Average round-trip | £403 |
Most popular airline | United Airlines |
Key info about flying to San Antonio
Check-in for a flight from Ontario to San Antonio
| Name | Carrier code | IATA Code | Passport needed during booking |
|---|---|---|---|
| United Airlines | UAL | UA | No |
| Alaska Airlines | ASA | AS | No |
| Hawaiian Airlines | HAL | HA | No |
Online check-in is not available for these airlines.
Weather in San Antonio
Average Weather
| Month | Average monthly max temperature | Average monthly min temperature |
| January | 17°C | 7°C |
| February | 19°C | 9°C |
| March | 23°C | 12°C |
| April | 27°C | 16°C |
| May | 30°C | 20°C |
| June | 34°C | 23°C |
| July | 35°C | 24°C |
| August | 36°C | 25°C |
| September | 32°C | 22°C |
| October | 28°C | 17°C |
| November | 21°C | 12°C |
| December | 18°C | 9°C |
14 day forecast
San Antonio travel tips
Tex-Mex is a fusion of traditional Texas American food and Mexican recipes. Be sure to stop by one of the local restaurants to enjoy this mix of cultures. For example, book a table at Mi Tierra.
Missions of San Jose, San Juan, Espada, and Concepcion are Spanish border missions that made up the colonial system from the 17th to the 19th century. These cultural objects are well preserved to this day and are part of the single San Antonio Missions National Historical Park, which occupies 330 hectares.
The San Antonio train station is the landmark of this city. Daniel J. Patterson designed the station. The construction of the station was completed in 1902. In 1975, the station was listed on the San Antonio Register of Historic Places. Now there is an entertainment complex. The station has two steam locomotives that previously belonged to the South Pacific Railway.
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any A and any B in the world by plane, train, and bus. Find the cheapest routes and best deals for you, as well as the best dates on which to travel.
Explore alternative trips
Flights from Ontario
Flights to San Antonio
Popular routes
Airports near Ontario
Airports near San Antonio
Download our app
Start your next adventure now. Download our app and explore cheap flights effortlessly!