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 48 minutes.

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Schedules

Southwest Airlines

Non-stop with Southwest Airlines

  • Total flight time: 4 hours and 48 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
Jun 8
Tue
Jun 9
Wed
Jun 10
Thu
Jun 11
Fri
Jun 12
Sat
Jun 13
Sun
Jun 14
WN3143
21:40
21:40
21:40
21:40
21:40
21:40
21:40
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
Jun 8
Tue
Jun 9
Wed
Jun 10
Thu
Jun 11
Fri
Jun 12
Sat
Jun 13
Sun
Jun 14
WN3144
WN1898
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05:45
05:45
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----
----
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WN3144
WN4698
05:50
----
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05:50
05:50
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WN3144
WN1539
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----
----
----
----
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05:55
WN3144
WN1506
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----
----
----
----
06:00
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WN3042
WN1045
06:15
----
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06:15
06:15
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WN3145
WN1665
08:00
----
----
08:00
08:00
----
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WN3145
WN1045
----
----
----
----
----
----
08:50
WN3146
WN1499
12:50
13:20
13:20
12:50
12:50
----
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WN3147
WN1499
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----
----
----
----
14:20
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WN3147
WN1500
14:30
----
----
14:30
14:30
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WN2687
WN1500
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14:50
14:50
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----
----
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WN670
WN1500
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----
----
----
----
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15:10
WN670
WN1501
15:40
----
----
15:40
15:40
----
----
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
Jun 8
Tue
Jun 9
Wed
Jun 10
Thu
Jun 11
Fri
Jun 12
Sat
Jun 13
Sun
Jun 14
WN864
WN3329
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05:15
05:15
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----
----
----
WN864
WN1039
05:15
----
----
05:15
05:15
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WN2789
WN4347
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----
----
----
----
09:50
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WN3062
WN4347
12:45
----
----
12:45
12:45
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WN3585
WN2206
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----
----
----
----
----
12:45
WN3159
WN3250
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----
----
----
----
18:30
----
WN3160
WN3250
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19:20
19:20
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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 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
Jun 8
Tue
Jun 9
Wed
Jun 10
Thu
Jun 11
Fri
Jun 12
Sat
Jun 13
Sun
Jun 14
WN3150
WN235
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----
----
----
----
----
05:30
WN3580
WN1982
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08:30
08:30
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----
----
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WN2333
WN235
08:35
----
----
08:35
08:35
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WN2333
WN2205
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----
----
----
----
----
09:45
WN3151
WN2205
12:40
----
----
12:40
12:40
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WN300
WN2206
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----
----
----
----
----
14:35
WN2213
WN113
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18:35
18:35
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----
----
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WN5082
WN2208
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----
----
----
----
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19:00
WN372
WN113
----
20:25
20:25
----
----
----
----
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
Jun 8
Tue
Jun 9
Wed
Jun 10
Thu
Jun 11
Fri
Jun 12
Sat
Jun 13
Sun
Jun 14
WN3488
WN2214
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----
----
----
----
05:00
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WN3142
WN478
09:45
----
----
09:45
09:45
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WN3142
WN468
----
11:30
11:30
----
----
----
----
WN3142
WN467
----
----
----
----
----
----
11:55
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 2026-05-25
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