Chicago to Ontario

MDWONT

Fly from Chicago to Ontario starting at SAR 333 with Southwest Airlines.Best fare available on Sep 23, 2026.Limited seats. Better plans. Book before it's gone.

Chicago to Ontario cheapest flights this week

23 Sept
Southwest Airlines
17:25MDW
21:40ONT
DirectSAR 333VIEW DEAL
23 Sept
Southwest Airlines
06:40MDW
12:15ONT
1 StopSAR 548VIEW DEAL
24 Sept
Frontier Airlines
12:54MDW
20:39ONT
1 StopSAR 455VIEW DEAL
25 Sept
Southwest Airlines
18:15MDW
00:05ONT
1 StopSAR 551VIEW DEAL
26 Sept
Southwest Airlines
13:15MDW
20:25ONT
1 StopSAR 562VIEW DEAL
27 Sept
Southwest Airlines
05:40MDW
13:35ONT
1 StopSAR 551VIEW DEAL
27 Sept
Southwest Airlines
05:25MDW
11:30ONT
1 StopSAR 599VIEW DEAL
28 Sept
Frontier Airlines
12:54MDW
20:39ONT
1 StopSAR 507VIEW DEAL
29 Sept
Southwest Airlines
18:00MDW
00:05ONT
1 StopSAR 537VIEW DEAL
30 Sept
Southwest Airlines
18:00MDW
00:05ONT
1 StopSAR 570VIEW DEAL

Chicago to Ontario monthly flight fare trend

Sep
from SAR 333
Oct
from SAR 274
Nov
from SAR 455
Dec
from SAR 381
Jan
from SAR 455
Feb
from SAR 540

Airport Details

Origin

Chicago

Chicago Midway International Airport (MDW)

Chicago, MDW
Zone

Chicago

Elev

620 ft

Destination

Ontario

Ontario International Airport (ONT)

Ontario, ONT
Zone

Los Angeles

Elev

944 ft

Flights from Chicago

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