Find cheap flight tickets from Ontario (ONT) to Austin (AUS). Cheapest fare starts from $387.
Ontario
ONT
→
Austin
AUS
10/19/2025 – 10/26/2025
Cheap flight deals from Ontario to Austin
Average price start from:
i
$169
Round-trip flights from Ontario to Austin starting at $169. Book now for the best deals!
One-way from:
i
$41
One-way flights from Ontario to Austin starting at $41. Great for flexible travel!
Cheapest day:
i
Wednesday
Wednesday is the cheapest day to fly from Ontario to Austin. Save more by booking on this day!
Cheapest In:
i
$67
Oct 2025
Oct 2025 is the cheapest month to fly from Ontario to Austin with prices starting at $67.
Find flight deals from Ontario to Austin
Cheapest flights from Ontario to Austin
ONEWAY FLIGHTS
LAST MINUTE
CHEAP FLIGHTS
BEST FLIGHTS
Explore the cheapest oneway flights from Ontario to Austin spotted daily.
ONT
Ontario
ONT - Ontario • 2025-10-19 • 09:00
Unknown
60 min
AUS
Unknown City
$41
Non-stop • 60 min
ONT
Ontario
ONT - Ontario • 2025-10-19 • 09:00
Unknown
60 min
AUS
Unknown City
$116
Non-stop • 60 min
ONT
Ontario
ONT - Ontario • 2025-10-19 • 09:00
Unknown
60 min
AUS
Unknown City
$126
Non-stop • 60 min
ONT
Ontario
ONT - Ontario • 2025-10-19 • 09:00
Unknown
60 min
AUS
Unknown City
$132
Non-stop • 60 min
ONT
Ontario
ONT - Ontario • 2025-10-19 • 09:00
Unknown
60 min
AUS
Unknown City
$135
Non-stop • 60 min
ONT
Ontario
ONT - Ontario • 2025-10-19 • 09:00
Unknown
60 min
AUS
Unknown City
$165
Non-stop • 60 min
ONT
Ontario
ONT - Ontario • 2025-10-19 • 09:00
Unknown
60 min
AUS
Unknown City
$197
Non-stop • 60 min
ONT
Ontario
ONT - Ontario • 2025-10-19 • 09:00
Unknown
60 min
AUS
Unknown City
$244
Non-stop • 60 min
Price Trends & Analysis
Weekly Price Trends
Optimal pricing available on Wednesday for flights to Austin.
Monthly Price Trends
Best time to book flights from Ontario to Austin is during August.
Weather & Climate Information
Temperature
Austin experiences a humid subtropical climate, with summer temperatures often exceeding 90°F (32°C) and mild winters averaging around 50°F (10°C). The best times for comfortable travel are in spring (March to May) and fall (September to November), when temperatures are more moderate, ranging from 60°F to 80°F (16°C to 27°C).
Rainfall
The best time to visit Austin is during the spring (March to May) when temperatures are mild and wildflowers bloom, creating beautiful scenery. Additionally, you can enjoy lively events like South by Southwest (SXSW) and Austin’s famous music festivals, enhancing your experience while avoiding the summer heat and tourist crowds.
Airlines at AUS
Book your journey from Ontario to Austin with leading airlines including Frontier Airlines, Southwest Airlines, Delta Air Lines, Alaska Airlines. These carriers provide excellent connectivity and multiple daily options for convenient travel.
The typical flight time is about 10-15 hours, with most flights featuring one stopover for better pricing and route optimization. When traveling from Ontario to Austin, these airlines ensure a smooth and comfortable experience with their modern fleet and professional service.
Places to Visit in Austin
Austin, the vibrant heart of Texas, pulses with an eclectic blend of live music, innovative cuisine, and a spirited arts scene that beckons travelers. Explore the historic Texas State Capitol, savor mouthwatering barbecue at local joints, and immerse yourself in the annual South by Southwest festival, where creativity knows no bounds. With its picturesque lakes, lush parks, and a welcoming atmosphere, Austin invites visitors to dance to its unique rhythm, making every moment an unforgettable adventure.
About Austin
Embark on an exciting adventure from Ontario to Austin and discover a world of possibilities. This dynamic city offers a perfect mix of traditional charm and contemporary attractions. Time your visit during off-peak periods for maximum savings and comfort.
Airlines Flying from Ontario to Austin
Book your journey from Ontario to Austin with leading airlines including Frontier Airlines, Southwest Airlines, Delta Air Lines, Alaska Airlines. These carriers provide excellent connectivity and multiple daily options for convenient travel.
The typical flight time is about 10-15 hours, with most flights featuring one stopover for better pricing and route optimization. When traveling from Ontario to Austin, these airlines ensure a smooth and comfortable experience with their modern fleet and professional service.
Hotels in Austin
When staying in Austin, look for hotels with easy access to AUS Airport. Most properties provide shuttle services for seamless airport transfers.
About Austin
Embark on an exciting adventure from Ontario to Austin and discover a world of possibilities. This dynamic city offers a perfect mix of traditional charm and contemporary attractions. Time your visit during off-peak periods for maximum savings and comfort.
Places to Visit in Austin
Austin, the vibrant heart of Texas, pulses with an eclectic blend of live music, innovative cuisine, and a spirited arts scene that beckons travelers. Explore the historic Texas State Capitol, savor mouthwatering barbecue at local joints, and immerse yourself in the annual South by Southwest festival, where creativity knows no bounds. With its picturesque lakes, lush parks, and a welcoming atmosphere, Austin invites visitors to dance to its unique rhythm, making every moment an unforgettable adventure.
Hotels in Austin
When staying in Austin, look for hotels with easy access to AUS Airport. Most properties provide shuttle services for seamless airport transfers.
Airlines Flying from Ontario to Austin
Book your journey from Ontario to Austin with leading airlines including Frontier Airlines, Southwest Airlines, Delta Air Lines, Alaska Airlines. These carriers provide excellent connectivity and multiple daily options for convenient travel.
The typical flight time is about 10-15 hours, with most flights featuring one stopover for better pricing and route optimization. When traveling from Ontario to Austin, these airlines ensure a smooth and comfortable experience with their modern fleet and professional service.
Frequently Asked Questions
What is the cheapest flight from Ontario to Austin?
The cheapest fare is $41. For the best deals, consider booking during August and flying on Wednesday.
How long is the flight from Ontario to Austin?
Average flight time is around 10-15 hours, depending on layovers and the chosen route. Most flights include one stopover for optimal pricing.
Which airlines fly from Ontario to Austin?
Multiple airlines operate this route including Frontier Airlines, Southwest Airlines, Delta Air Lines. Check current schedules and availability for the best options.
What is the best time to book flights?
Booking 2–3 months in advance usually gives the best prices. Consider flying during August for additional savings.
Are there hotels near AUS Airport?
Yes, several hotels are conveniently located near AUS Airport, including options with shuttle services for easy airport access.
What should I know about Austin?
Austin offers a perfect blend of culture, history, and modern attractions. The best time to visit is during pleasant weather months for optimal experiences.
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