Ontario to Austin

ONTAUS

Fly from Ontario to Austin starting at USD 90 with Frontier Airlines.Best fare available on Nov 14, 2026.Limited seats. Better plans. Book before it's gone.

Ontario to Austin cheapest flights this week

13 Nov
Alaska Airlines
06:00ONT
16:32AUS
1 StopUSD 140VIEW DEAL
14 Nov
Alaska Airlines
06:00ONT
16:32AUS
1 StopUSD 140VIEW DEAL
14 Nov
Frontier Airlines
06:25ONT
17:26AUS
1 StopUSD 90VIEW DEAL
20 Nov
Frontier Airlines
14:01ONT
20:04AUS
1 StopUSD 147VIEW DEAL
4 Dec
Frontier Airlines
14:00ONT
18:07AUS
1 StopUSD 118VIEW DEAL
7 Dec
Frontier Airlines
06:00ONT
15:35AUS
1 StopUSD 127VIEW DEAL
27 Dec
Frontier Airlines
11:16ONT
16:49AUS
1 StopUSD 204VIEW DEAL
14 Jan
Frontier Airlines
12:39ONT
20:06AUS
1 StopUSD 112VIEW DEAL

Ontario to Austin monthly flight fare trend

Nov
from USD 90
Dec
from USD 118
Jan
from USD 112
Feb
No flights
Mar
No flights
Apr
No flights

Airport Details

Origin

Ontario

Ontario International Airport (ONT)

Ontario, ONT
Zone

Los Angeles

Elev

944 ft

Destination

Austin

Austin Bergstrom International Airport (AUS)

Austin, AUS
Zone

Chicago

Elev

542 ft