Cheap flights from Austin, TX to Ontario, CA

Flights starting at $136. Choose between Frontier Airlines, United Airlines, or Alaska Airlines to find the best price.

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Tips to know when travelling to Ontario

The most popular airlines for this route are Frontier Airlines, United Airlines, and Alaska Airlines. Austin and Ontario have 40 direct flights per week.

Check-in for a flight from Austin to Ontario

NameCarrier codeIATA CodePassport needed during booking
Frontier AirlinesFFTF9No
United AirlinesUALUAYes
Alaska AirlinesASAASNo

Weather in Ontario

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January18°C7°C
February18°C7°C
March20°C8°C
April23°C10°C
May25°C12°C
June29°C16°C
July33°C19°C
August33°C20°C
September32°C18°C
October27°C15°C
November22°C10°C
December17°C7°C
Hottest Month
33°C
August
Coldest month
7°C
February
Sunny days
340
days per year

14 day forecast

Friday
1 Nov
22°C11°C
8 Nov
20°C10°C
Saturday
2 Nov
16°C11°C
9 Nov
20°C11°C
Sunday
3 Nov
21°C11°C
10 Nov
23°C12°C
Monday
4 Nov
23°C10°C
11 Nov
23°C13°C
Tuesday
5 Nov
22°C12°C
12 Nov
83%
12°C10°C
Wednesday
6 Nov
18°C12°C
13 Nov
65%
15°C10°C
Thursday
7 Nov
18°C10°C
14 Nov
19°C10°C

Frequently asked questions

What are the most popular routes to and from Austin?
What are the most popular routes to and from Ontario?
What airports are near Austin?
What airports are near Ontario?
Which airlines fly between Austin and Ontario?
When's the best time to travel between Austin and Ontario?
What flights operate between Austin and Ontario?
How many airports are there near Austin?
How many airports are there near Ontario?
What time do nonstop (direct) flights between Austin and Ontario depart?
What time do nonstop (direct) flights between Austin and Ontario arrive?
What time do flights between Austin and Ontario depart?
What time do flights between Austin and Ontario arrive?

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Flights from Austin

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Popular routes

The nearest countries with flights to Ontario

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Other destination countries from Austin

Here is a list of countries people are flying to
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