Ontario to Austin (ONT–AUS) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
ONT–AUS is served by 2 airlines with nonstop service. Southwest Airlines and Delta Air Lines lead the route. The flight covers 1,195 miles in approximately 2h 50m. Beyond nonstop, 50 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| WN Southwest Airlines | 6 | 738 | 2h50 | – | – | |
| DL Delta Air Lines | 0 | – | – | SkyTeam | – |
Weekly Schedule Pattern
Connection Landscape
Other ways to reach Austin from Ontario
| Metric | ONT→AUS | SBD→AUS | SNA→AUS |
|---|---|---|---|
| Distance from ONT | – | 21 mi | 30 mi |
| Nonstop airlines | 2 | 2 | 4 |
| Weekly flights | 6 | 2 | 8 |
| Flight time | 2h 50m | 2h 30m | 2h 17m |
| Departure OTP | 80% | – | – |
Travel Essentials
ONT: PDT · AUS: CDT
When it's 6:00 PM in Ontario, it's 8:00 PM in Austin.
CapMetro Route 20 to downtown Congress Ave costs $1.25 and takes 30–35 minutes. Buses depart from outside the terminal on the lower level. Last bus around midnight; late arrivals need a ride-share.Uber and Lyft pickup is on the lower level (follow signs to TNCs). Fares run $20–30 to downtown, 15–20 minutes off-peak. Taxis at the curb: $30–40. Rental car desks are in the main terminal; the QTA (Quick Turnaround Area) is a short shuttle ride. Afternoon and evening arrivals may face longer drive times due to city congestion.
Humid subtropical climate with hot summers. July and August average 36–38°C with heat indices that can reach 43°C. Winter (December–February) is generally mild at 7–17°C. Austin is vulnerable to rare but severe ice storms. Winter Storm Uri (2021) is the benchmark for worst-case disruption, and they can paralyze the city and airport.
Severe thunderstorms peak April through May with hail and tornado risk. Spring storm systems can cause significant ground delays. October and November are the most reliably stable months.
ONT–AUS Quick Facts
Frequently Asked Questions
Flights from ONT to AUS
Ontario International Airport (ONT) and Austin Bergstrom International Airport (AUS) are connected by nonstop service from Delta Air Lines and Southwest Airlines. With 6 weekly departures, this is a regularly served route.
ONT to AUS Flight Duration and Schedule
Nonstop flight time from ONT to AUS ranges from 2 hours 50 minutes. The route covers a distance of 1,195 miles (1,923 km). There are approximately 6 weekly flights outbound and 6 return, totaling 12 flights per week in both directions.
Connecting Options and Alternatives
50 one-stop connections are available, with the fastest taking approximately 3 hours via SCF. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include San Bernardino (SBD), Santa Ana (SNA) and Long Beach (LGB).