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
Jun 15
Tue
Jun 16
Wed
Jun 17
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Jun 18
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Jun 19
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Jun 20
Sun
Jun 21
WN3153
23:55
23:55
23:55
23:55
23:55
23:55
23:55
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
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
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Jun 21
WN3144
WN755
05:50
05:45
05:45
05:50
05:50
06:00
05:55
WN3042
WN1601
06:15
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06:15
06:15
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WN3145
WN1601
08:00
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08:00
08:00
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WN3145
WN1524
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08:05
08:50
WN3145
WN4262
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08:15
08:15
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WN3062
WN1604
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11:55
WN3146
WN1604
12:50
13:20
13:20
12:50
12:50
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WN3147
WN223
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14:20
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WN300
WN1615
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14:35
WN2687
WN1614
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14:50
14:50
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WN670
WN1614
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15:10
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
Jun 15
Tue
Jun 16
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Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
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Jun 21
WN3150
WN2271
05:30
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05:30
05:30
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05:30
WN3150
WN1535
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05:30
05:30
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WN3580
WN2273
----
08:30
08:30
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WN2333
WN1276
08:35
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08:35
08:35
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WN2333
WN4249
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09:45
WN2333
WN1782
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10:00
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WN3151
WN2274
12:40
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12:40
12:40
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WN300
WN2274
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14:35
WN2126
WN3200
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15:00
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WN873
WN3200
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15:40
15:40
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WN2213
WN3200
16:40
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16:40
16:40
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16:35
WN372
WN2276
21:40
20:25
20:25
21:40
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
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
Sun
Jun 21
WN864
WN3295
----
05:15
05:15
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WN864
WN3296
05:15
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05:15
05:15
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05:15
WN4460
WN1677
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05:30
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WN4421
WN4066
08:00
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08:00
08:00
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WN3805
WN4066
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10:10
10:10
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WN3585
WN770
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12:45
WN3062
WN4085
12:45
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12:45
12:45
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WN1450
WN3297
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13:30
13:30
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WN4538
WN2521
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16:35
16:35
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WN3159
WN2521
17:15
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17:15
17:15
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WN3160
WN3298
20:45
----
----
20:45
20:45
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20:40
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
Jun 15
Tue
Jun 16
Wed
Jun 17
Thu
Jun 18
Fri
Jun 19
Sat
Jun 20
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Jun 21
WN864
WN1358
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05:15
WN1310
WN2664
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07:10
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WN3035
WN41
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09:45
09:45
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WN2030
WN1359
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09:45
WN3247
WN1359
16:20
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16:20
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 2026-06-02
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