All airlines flying from Ontario, Los Angeles (ONT) to Baltimore (BWI).

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sat 09:50 Ontario, Los Angeles (ONT) 4 17:35 Baltimore (BWI)
Southwest Airlines WN 1015 Non-stop Boeing 737 MAX 8 (7M8) 4:45 Valid until 2026-01-03
Mon,Tue,Fri,Sun 09:30 Ontario, Los Angeles (ONT) 4 17:15 Baltimore (BWI)
Southwest Airlines WN 1708 Non-stop Boeing 737 MAX 8 (7M8) 4:45 Valid until 2026-01-04
Mon 10:50 Ontario, Los Angeles (ONT) 4 18:35 Baltimore (BWI)
Southwest Airlines WN 1945 Non-stop Boeing 737-800 (73H) 4:45 Operates only on 2026-01-05
Sat 21:25 Ontario, Los Angeles (ONT) 4 06:05 Baltimore (BWI)
Southwest Airlines WN 2294 Non-stop Boeing 737-800 (73H) 4:40 Operates only on 2026-03-07
The flight arrives 1 day after departure.
Daily 21:40 Ontario, Los Angeles (ONT) 4 05:30 Baltimore (BWI)
Southwest Airlines WN 3143 Non-stop Boeing 737-700 (Scimitar Winglets) 4:50 Effective 2026-06-04 through 2026-08-03
The flight arrives 1 day after departure.
Daily 21:55 Ontario, Los Angeles (ONT) 4 05:40 Baltimore (BWI)
Southwest Airlines WN 3648 Non-stop Boeing 737 MAX 8 (7M8) 4:45 Effective 2026-04-07 through 2026-06-03
The flight arrives 1 day after departure.
Thu,Fri 21:55 Ontario, Los Angeles (ONT) 4 05:35 Baltimore (BWI)
Southwest Airlines WN 4128 Non-stop Boeing 737-800 (73H) 4:40 Effective 2026-03-05 through 2026-03-06
The flight arrives 1 day after departure.
Daily 21:55 Ontario, Los Angeles (ONT) 4 05:35 Baltimore (BWI)
Southwest Airlines WN 4128 Non-stop Boeing 737-800 (73H) 4:40 Effective 2026-03-08 through 2026-04-06
The flight arrives 1 day after departure.
Non-Direct Flights:
Sat 07:05 Ontario, Los Angeles (ONT) 4 17:50 Baltimore (BWI)
Southwest Airlines WN 1869 2-stop Boeing 737-700 (Scimitar Winglets) 7:45 Effective 2026-02-14 through 2026-02-28




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All airlines flying from Ontario, Los Angeles (ONT) to Baltimore (BWI).
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN1015
09:50
Ontario, Los Angeles (ONT) 4

17:35
Baltimore (BWI)
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:45, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN1708
09:30
Ontario, Los Angeles (ONT) 4

17:15
Baltimore (BWI)
Valid until 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 4:45, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN1945
10:50
Ontario, Los Angeles (ONT) 4

18:35
Baltimore (BWI)
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:45, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN2294
21:25
Ontario, Los Angeles (ONT) 4

06:05(+1)
Baltimore (BWI)
Operates only on 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:40, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.
Direct Flights:
Southwest Airlines WN3143
21:40
Ontario, Los Angeles (ONT) 4

05:30(+1)
Baltimore (BWI)
Effective 2026-06-04 through 2026-08-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:50, non-stop
Boeing 737-700 (Scimitar Winglets)
The flight arrives 1 day after departure.
Direct Flights:
Southwest Airlines WN3648
21:55
Ontario, Los Angeles (ONT) 4

05:40(+1)
Baltimore (BWI)
Effective 2026-04-07 through 2026-06-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:45, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Flights:
Southwest Airlines WN4128
21:55
Ontario, Los Angeles (ONT) 4

05:35(+1)
Baltimore (BWI)
Effective 2026-03-05 through 2026-03-06
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 4:40, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.
Direct Flights:
Southwest Airlines WN4128
21:55
Ontario, Los Angeles (ONT) 4

05:35(+1)
Baltimore (BWI)
Effective 2026-03-08 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:40, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.
Non-Direct Flights:
Southwest Airlines WN1869
07:05
Ontario, Los Angeles (ONT) 4

17:50
Baltimore (BWI)
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 7:45, 2-stop
Boeing 737-700 (Scimitar Winglets)
  • A domestic route departing from the Ontario, Los Angeles airport (ONT) and arriving at Baltimore airport (BWI).
  • The flight distance is 2277 miles, or 3664 km.
  • The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC-5 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
  • For direct flights, the flight time varies between 4:40 and 4:50.
Return (BWI-ONT) flights
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