Airlines with flights from Ontario to Baltimore

There are five airlines with scheduled flights between ONT and BWI. Southwest is the only airline with non-stop flights from Ontario International Airport to Baltimore Washington International and the flight time is 4 hours and 50 minutes.

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Schedules

Southwest Airlines

Non-stop with Southwest Airlines

  • Total flight time: 4 hours and 50 minutes
  • Low-cost airline
  • Baltimore is a Southwest Airlines focus city (Operating base).
  • 7 flights per week
  • Boeing 737-700 Passenger (Scimitar Winglets)
ONT
Direct
BWI
 
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
WN3143
21:40
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SHOW RETURN SCHEDULE
CHECK PRICES FOR ONT - BWI

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

Southwest Airlines

Via Denver with Southwest Airlines

  • Total flight time: 6h 05m - 11h 45m.
  • Low-cost airline
  • Baltimore is a Southwest Airlines focus city (Operating base).
  • 95 flights per week
  • Boeing 737-700 Passenger (Scimitar Winglets)
ONT
 
Via DEN
 
BWI
 
Flight
Mon
Aug 3
Tue
Aug 4
Wed
Aug 5
Thu
Aug 6
Fri
Aug 7
Sat
Aug 8
Sun
Aug 9
WN3144
WN4698
05:50
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WN3042
WN1045
06:15
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WN319
WN1470
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06:20
06:20
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WN3539
WN103
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06:25
WN3074
WN1470
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06:55
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WN3074
WN1125
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07:00
07:00
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WN3145
WN1665
08:00
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WN3075
WN3072
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08:10
08:10
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WN1440
WN4065
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09:20
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WN1428
WN636
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10:40
WN1082
WN1469
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10:55
10:55
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WN3076
WN4269
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12:25
12:25
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WN3146
WN1499
12:50
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WN3076
WN1470
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14:15
WN3147
WN1500
14:30
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WN670
WN1501
15:40
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SHOW RETURN SCHEDULE
CHECK PRICES FOR ONT - BWI

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

Southwest Airlines

Via Phoenix with Southwest Airlines

  • Total flight time: 6h 10m - 9h 40m.
  • Low-cost airline
  • Baltimore is a Southwest Airlines focus city (Operating base).
  • 56 flights per week
  • Boeing 737-700 Passenger (Scimitar Winglets)
ONT
 
Via PHX
 
BWI
 
Flight
Mon
Aug 3
Tue
Aug 4
Wed
Aug 5
Thu
Aug 6
Fri
Aug 7
Sat
Aug 8
Sun
Aug 9
WN864
WN1039
05:15
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WN503
WN366
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05:35
WN503
WN275
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05:50
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WN503
WN2900
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06:50
06:50
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WN3087
WN2900
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08:35
08:35
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WN3062
WN4347
12:45
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WN2638
WN393
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14:30
WN787
WN3179
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20:40
20:40
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20:35
SHOW RETURN SCHEDULE
CHECK PRICES FOR ONT - BWI

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

Southwest Airlines

Via Las Vegas with Southwest Airlines

  • Total flight time: 6h 20m - 8h 55m.
  • Low-cost airline
  • Baltimore is a Southwest Airlines focus city (Operating base).
  • 72 flights per week
  • Boeing 737-700 Passenger (Scimitar Winglets)
ONT
 
Via LAS
 
BWI
 
Flight
Mon
Aug 3
Tue
Aug 4
Wed
Aug 5
Thu
Aug 6
Fri
Aug 7
Sat
Aug 8
Sun
Aug 9
WN3080
WN159
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05:40
05:40
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WN3080
WN758
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05:40
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WN3080
WN1928
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05:45
05:45
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WN2235
WN1770
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08:30
08:30
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WN2333
WN235
08:35
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WN2200
WN1172
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09:10
WN2158
WN2142
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12:35
12:35
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WN3151
WN2205
12:40
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WN1911
WN2142
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13:45
WN3775
WN3725
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20:10
SHOW RETURN SCHEDULE
CHECK PRICES FOR ONT - BWI

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

Southwest Airlines

Via Nashville with Southwest Airlines

  • Total flight time: 6h 20m - 10h 30m.
  • Low-cost airline
  • Baltimore is a Southwest Airlines focus city (Operating base).
  • 31 flights per week
  • Boeing 737-700 Passenger (Scimitar Winglets)
ONT
 
Via BNA
 
BWI
 
Flight
Mon
Aug 3
Tue
Aug 4
Wed
Aug 5
Thu
Aug 6
Fri
Aug 7
Sat
Aug 8
Sun
Aug 9
WN503
WN367
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05:35
WN1369
WN462
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07:40
07:40
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WN3073
WN1839
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08:30
WN3073
WN430
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08:45
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WN3142
WN478
09:45
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SHOW RETURN SCHEDULE
CHECK PRICES FOR ONT - BWI

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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