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	Baggage	Price
Best option Baltimore Ontario	Outbound 05/16/26 1 Stopover (DFW) F91475, F94689 08h 37min	Return 05/29/26 1 Stopover (SEA) AS0625, AS0344 11h 25min	Frontier Airlines	?	$384
Baltimore Ontario	Outbound 05/16/26 1 Stopover (PDX) AS0557, AS0097 09h 26min	Return 05/29/26 1 Stopover (SEA) AS0625, AS0344 11h 25min	Alaska Airlines	?	$476
Baltimore Ontario	Outbound 05/16/26 1 Stopover (DFW) AA1403, AA2462 09h 18min	Return 05/29/26 1 Stopover (SEA) AS0625, AS0344 11h 25min	American Airlines	?	$532
Baltimore Ontario	Outbound 03/28/26 2 Stopovers (ATL, SFO) F92509, F91949, F92678 43h 37min	Return 04/25/26 2 Stopovers (DEN, ATL) F91500, F93600, F94712 20h 50min	Frontier Airlines	?	$539
Baltimore Ontario	Outbound 05/16/26 2 Stopovers (ATL, LAS) F92633, F93923, F91283 28h 59min	Return 05/29/26 3 Stopovers (IAH, SAL, IAH) UA1936, UA1461, UA2203, UA0604 26h 49min	Frontier Airlines	?	$565
Baltimore Ontario	Outbound 05/16/26 1 Stopover (DFW) AA1403, AA2462 09h 18min	Return 05/29/26 2 Stopovers (PHX, CLT) AA2898, AA0588, AA1318 11h 45min	American Airlines	?	$598
Baltimore Ontario	Outbound 07/26/26 1 Stopover (PDX) AS1369, AS1571 19h 36min	Return 08/05/26 1 Stopover (SEA) AS0575, AS0781 09h 52min	Alaska Airlines	?	$600 found yesterday
Baltimore Ontario	Outbound 03/28/26 1 Stopover (DFW) AA1213, AA2512 07h 56min	Return 04/25/26 1 Stopover (DFW) AA3136, AA1927 07h 55min	American Airlines	?	$607
Baltimore Ontario	Outbound 07/26/26 2 Stopovers (ATL, IAH) F91079, F91403, F93131 41h 09min	Return 08/05/26 2 Stopovers (DEN, MSP) F92908, SY0658, SY0193 19h 26min	Frontier Airlines	?	$614 found yesterday
Baltimore Ontario	Outbound 07/26/26 1 Stopover (DFW) AA1626, AA1534 07h 46min	Return 08/05/26 1 Stopover (SEA) AS0575, AS0781 09h 52min	American Airlines	?	$622 found yesterday

Tips and tricks to help you find cheap flights from Baltimore to Ontario

Important flight information

Flight information: Baltimore - Ontario

Roundtrip from	383,19 $
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

Flight Baltimore - Atlanta from 184 $
Flight Baltimore - Miami from 125 $
Flight Baltimore - Las Vegas from 271 $
Flight Baltimore - Orlando from 95 $
Flight Baltimore - Fort Lauderdale from 103 $
Flight Baltimore - San Francisco from 139 $
Flight Baltimore - Fort Myers from 248 $
Flight Baltimore - Tampa from 255 $
Flight Baltimore - Boston from 143 $
Flight Baltimore - Chicago O'Hare from 131 $

Alternative flights to Ontario

Flight San Francisco - Ontario from 73 $
Flight Seattle-Tacoma - Ontario from 318 $
Flight Dallas - Ontario from 119 $
Flight Sacramento - Ontario from 364 $

Flights from Baltimore to Ontario

Our cheapest offers for flights from Baltimore to Ontario

Baltimore-Washington International-Thurgood Marshall Airport, MD

Ontario-CA

Tips and tricks to help you find cheap flights from Baltimore to Ontario

Important flight information

Flight information: Baltimore - Ontario

Alternative routes to United States

Alternative flights to Ontario

Flight destinations with a similar price