Flights from Baltimore to Ontario

3 deals on this route

Ontario California aerial with San Gabriel Mountains
Save 36%
$171
$266
Baltimore Inner Harbor at night
BWIONT
Baltimore to Ontario
Frontier Airlines
Nonstop·round trip
May 5 – May 8
Ontario California aerial with San Gabriel Mountains
Save 30%
$186
$266
Baltimore Inner Harbor at night
BWIONT
Baltimore to Ontario
Frontier Airlines
Nonstop·round trip
Apr 21 – Apr 22
Ontario California aerial with San Gabriel Mountains
$380
Baltimore Inner Harbor at night
BWIONT
Baltimore to Ontario
Southwest Airlines
Nonstop·round trip
May 5 – May 8