Airlines with flights from Ontario to Chicago

Southwest is the only airline with non-stop flights from Ontario International Airport to Midway International Airport and the flight time is 3 hours and 45 minutes.

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Schedules

Southwest Airlines

Non-stop with Southwest Airlines

  • Total flight time: 3 hours and 45 minutes
  • Low-cost airline
  • Chicago is a Southwest Airlines focus city (Operating base).
  • 7 flights per week
  • Boeing 737MAX 8 Passenger
ONT
Direct
MDW
 
Flight
Mon
Aug 3
Tue
Aug 4
Wed
Aug 5
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Aug 6
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Aug 7
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Aug 8
Sun
Aug 9
WN3082
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23:55
23:55
23:55
23:55
23:55
23:55
WN3153
23:55
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SHOW RETURN SCHEDULE
CHECK PRICES FOR ONT - MDW

The timetable & schedule information was updated at 2026-04-21

Southwest Airlines

Via Denver with Southwest Airlines

  • Total flight time: 5h 10m - 10h 15m.
  • Low-cost airline
  • Chicago is a Southwest Airlines focus city (Operating base).
  • 120 flights per week
  • Boeing 737MAX 8 Passenger
ONT
 
Via DEN
 
MDW
 
Flight
Mon
Aug 3
Tue
Aug 4
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Aug 5
Thu
Aug 6
Fri
Aug 7
Sat
Aug 8
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Aug 9
WN3144
WN755
05:50
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WN3042
WN1601
06:15
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WN319
WN523
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06:20
06:20
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WN3539
WN4021
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06:25
WN3074
WN450
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06:55
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WN3074
WN1428
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07:00
07:00
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WN3145
WN1601
08:00
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WN3075
WN1428
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08:10
08:10
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WN1440
WN1561
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09:20
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WN1428
WN1152
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10:40
WN1082
WN1110
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10:55
10:55
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WN3076
WN290
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12:25
12:25
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WN2158
WN1563
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12:35
12:35
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WN3146
WN1604
12:50
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WN3076
WN3439
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13:00
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WN196
WN1563
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13:50
13:50
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WN239
WN1563
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14:00
14:00
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WN3076
WN1563
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14:15
SHOW RETURN SCHEDULE
CHECK PRICES FOR ONT - MDW

The timetable & schedule information was updated at 2026-04-21

Southwest Airlines

Via Las Vegas with Southwest Airlines

  • Total flight time: 5h 15m - 10h 35m.
  • Low-cost airline
  • Chicago is a Southwest Airlines focus city (Operating base).
  • 126 flights per week
  • Boeing 737MAX 8 Passenger
ONT
 
Via LAS
 
MDW
 
Flight
Mon
Aug 3
Tue
Aug 4
Wed
Aug 5
Thu
Aug 6
Fri
Aug 7
Sat
Aug 8
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Aug 9
WN3150
WN2271
05:30
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WN3080
WN409
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05:40
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WN3080
WN1231
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05:40
05:40
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WN3080
WN3130
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05:45
05:45
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WN2495
WN3503
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06:40
WN2235
WN3982
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08:30
08:30
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WN2333
WN1276
08:35
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WN4314
WN670
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09:40
09:40
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WN454
WN1423
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11:00
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WN2158
WN2206
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12:35
12:35
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WN3151
WN2274
12:40
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WN1911
WN2766
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13:45
WN3081
WN202
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16:35
WN2213
WN3200
16:40
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WN372
WN2276
21:40
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SHOW RETURN SCHEDULE
CHECK PRICES FOR ONT - MDW

The timetable & schedule information was updated at 2026-04-21

Southwest Airlines

Via Phoenix with Southwest Airlines

  • Total flight time: 5h 15m - 10h 40m.
  • Low-cost airline
  • Chicago is a Southwest Airlines focus city (Operating base).
  • 121 flights per week
  • Boeing 737MAX 8 Passenger
ONT
 
Via PHX
 
MDW
 
Flight
Mon
Aug 3
Tue
Aug 4
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Aug 5
Thu
Aug 6
Fri
Aug 7
Sat
Aug 8
Sun
Aug 9
WN901
WN680
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05:15
05:15
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WN864
WN3296
05:15
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WN503
WN4413
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05:35
WN503
WN371
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05:50
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WN503
WN4663
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06:50
06:50
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WN1774
WN3221
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08:00
08:00
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WN4421
WN4066
08:00
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WN3087
WN3285
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08:35
08:35
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WN894
WN4663
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10:05
WN3087
WN4978
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10:15
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WN3062
WN4085
12:45
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WN3876
WN4978
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13:10
13:10
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WN3089
WN1129
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15:35
15:35
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WN3159
WN2521
17:15
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WN787
WN3224
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20:40
20:40
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20:35
WN3160
WN3298
20:45
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SHOW RETURN SCHEDULE
CHECK PRICES FOR ONT - MDW

The timetable & schedule information was updated at 2026-04-21

Southwest Airlines

Via Dallas with Southwest Airlines

  • Total flight time: 5h 45m - 9h 30m.
  • Low-cost airline
  • Chicago is a Southwest Airlines focus city (Operating base).
  • 45 flights per week
  • Boeing 737MAX 8 Passenger
ONT
 
Via DAL
 
MDW
 
Flight
Mon
Aug 3
Tue
Aug 4
Wed
Aug 5
Thu
Aug 6
Fri
Aug 7
Sat
Aug 8
Sun
Aug 9
WN3098
WN22
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07:00
07:00
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WN418
WN4201
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07:00
WN3247
WN1359
16:20
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SHOW RETURN SCHEDULE
CHECK PRICES FOR ONT - MDW

The timetable & schedule information was updated at 2026-04-21

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Flight data on this page was last updated on 2026-07-21
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