Airlines with flights from Baltimore to Ontario

There are five airlines with scheduled flights between BWI and ONT. Southwest is the only airline with non-stop flights from Baltimore Washington International to Ontario International Airport and the flight time is 5 hours and 15 minutes.

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Choose airline

Schedules

Southwest Airlines

Non-stop with Southwest Airlines

  • Total flight time: 5 hours and 15 minutes
  • Low-cost airline
  • Baltimore is a Southwest Airlines focus city (Operating base).
  • 9 flights per week
  • Boeing 737-800 (winglets) Passenger/BBJ2
    Boeing 737MAX 8 Passenger
BWI
Direct
ONT
 
Flight
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Jun 15
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Jun 16
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Jun 17
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Jun 18
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Jun 19
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Jun 20
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Jun 21
WN991
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09:50
09:50
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WN2165
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13:40
WN200
20:10
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20:10
20:10
17:00
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SHOW RETURN SCHEDULE
CHECK PRICES FOR BWI - ONT

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

Southwest Airlines

Via Phoenix with Southwest Airlines

  • Total flight time: 6h 35m - 12h 25m.
  • Low-cost airline
  • Baltimore is a Southwest Airlines focus city (Operating base).
  • 94 flights per week
  • Boeing 737-800 (winglets) Passenger/BBJ2
    Boeing 737MAX 8 Passenger
BWI
 
Via PHX
 
ONT
 
Flight
Mon
Jun 15
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Jun 16
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Jun 17
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Jun 18
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Jun 19
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Jun 20
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Jun 21
WN1049
WN1413
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07:00
WN1049
WN431
07:00
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07:00
07:00
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WN3190
WN3206
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10:35
10:35
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WN193
WN2862
13:50
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13:50
13:50
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WN1048
WN2862
13:50
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13:50
13:50
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WN1050
WN3206
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15:05
15:05
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WN3647
WN1750
15:45
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15:45
15:45
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WN1050
WN2862
16:25
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16:25
16:25
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WN1051
WN3313
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18:55
18:55
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SHOW RETURN SCHEDULE
CHECK PRICES FOR BWI - ONT

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

Southwest Airlines

Via Denver with Southwest Airlines

  • Total flight time: 6h 45m - 11h 30m.
  • Low-cost airline
  • Baltimore is a Southwest Airlines focus city (Operating base).
  • 170 flights per week
  • Boeing 737-800 (winglets) Passenger/BBJ2
    Boeing 737MAX 8 Passenger
BWI
 
Via DEN
 
ONT
 
Flight
Mon
Jun 15
Tue
Jun 16
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Jun 17
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Jun 18
Fri
Jun 19
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Jun 20
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Jun 21
WN4436
WN431
06:05
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06:05
06:05
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WN4436
WN1450
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06:50
06:50
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WN935
WN4080
07:25
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07:25
07:25
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07:20
WN1080
WN3627
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08:20
08:20
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WN887
WN189
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10:40
10:40
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WN760
WN189
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11:45
11:45
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WN899
WN2949
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----
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11:45
WN937
WN1564
12:50
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12:50
12:50
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WN924
WN189
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13:10
13:10
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WN1250
WN2949
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13:50
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WN1037
WN2949
14:05
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14:05
14:05
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WN4159
WN1663
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15:00
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WN938
WN189
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15:00
15:00
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WN938
WN2949
15:10
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15:10
15:10
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WN4024
WN1663
15:15
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15:15
15:15
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WN939
WN1663
16:40
16:55
16:55
16:40
16:40
17:40
17:05
WN921
WN1663
17:00
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17:00
17:00
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SHOW RETURN SCHEDULE
CHECK PRICES FOR BWI - ONT

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

Southwest Airlines

Via Nashville with Southwest Airlines

  • Total flight time: 6h 45m - 10h 40m.
  • Low-cost airline
  • Baltimore is a Southwest Airlines focus city (Operating base).
  • 78 flights per week
  • Boeing 737-800 (winglets) Passenger/BBJ2
    Boeing 737MAX 8 Passenger
BWI
 
Via BNA
 
ONT
 
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
WN2997
WN855
08:20
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08:20
08:20
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08:20
WN1093
WN855
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08:25
WN1110
WN855
09:35
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09:35
09:35
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WN705
WN855
10:00
10:45
10:45
10:00
10:00
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WN893
WN855
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10:25
WN155
WN855
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10:55
10:55
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WN899
WN855
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11:50
11:50
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----
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WN1059
WN855
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13:05
13:05
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----
----
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SHOW RETURN SCHEDULE
CHECK PRICES FOR BWI - ONT

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

Southwest Airlines

Via Las Vegas with Southwest Airlines

  • Total flight time: 6h 50m - 11h 05m.
  • Low-cost airline
  • Baltimore is a Southwest Airlines focus city (Operating base).
  • 116 flights per week
  • Boeing 737-800 (winglets) Passenger/BBJ2
    Boeing 737MAX 8 Passenger
BWI
 
Via LAS
 
ONT
 
Flight
Mon
Jun 15
Tue
Jun 16
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Jun 17
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Jun 18
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Jun 19
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Jun 20
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Jun 21
WN2367
WN2298
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06:10
06:10
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WN4554
WN2298
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06:15
WN974
WN2298
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07:40
WN974
WN3845
09:35
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09:35
09:35
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WN2794
WN3845
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09:40
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WN1063
WN3845
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10:40
WN975
WN2015
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15:40
15:40
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WN975
WN1564
15:45
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15:45
15:45
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WN975
WN1565
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16:10
WN976
WN1777
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17:05
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WN188
WN1777
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17:30
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WN976
WN1565
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17:35
WN921
WN977
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17:40
WN976
WN2301
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18:40
18:40
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WN976
WN2135
19:30
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19:30
19:30
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SHOW RETURN SCHEDULE
CHECK PRICES FOR BWI - ONT

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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