Flights from Baltimore to Ontario with Frontier Airlines

Our cheapest offers for flights from Baltimore to Ontario

Here you can compare cheap flights from Baltimore (BWI) to Ontario (ONT) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Ontario. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Baltimore
Ontario
Outbound
09/25/25
1 Stopover (DFW)
F91475, F92923
19h 40min
Return
10/05/25
1 Stopover (DFW)
F94690, F91476
19h 50min
Frontier Airlines
$256
Baltimore
Ontario
Outbound
09/25/25
2 Stopovers (ATL, SFO)
F92633, F91949, F92678
20h 16min
Return
10/05/25
2 Stopovers (IAH, DEN)
F93132, F93227, F92706
26h 14min
Frontier Airlines ?
$379
Prices based on recent searches, subject to last-minute changes
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Important flight information

Flight information: Baltimore - Ontario

Roundtrip from 255,87 $
Flight duration min. 07:45
Return flight duration min. 05:35
Distance 3670 km
Flights per week 6
Departure airport Airport Baltimore-Washington International-Thurgood Marshall Airport, MD (BWI)
Arrival airport Airport Ontario-CA (ONT)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to Ontario
Flight destinations with a similar price
Flight destinations with a similar price