Photo by Ontario Convention & Visitors Bureau / Jon Edwards.

Cheap Frontier Airlines flights Baltimore (BWI) to Ontario (ONT)
Prices were available within the past 7 days and start at for one-way flights and $302 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Jan 3 - Fri, Jan 16
BWI
Baltimore
ONT
Ontario
$302 Roundtrip, found 5 days ago
$302
Roundtrip
found 5 days ago

Sun, Jan 18 - Mon, Jan 19
BWI
Baltimore
ONT
Ontario
$310 Roundtrip, found 1 day ago
$310
Roundtrip
found 1 day ago

Sun, Jan 4 - Fri, Jan 16
BWI
Baltimore
ONT
Ontario
$327 Roundtrip, found 5 days ago
$327
Roundtrip
found 5 days ago

Sat, Jan 3 - Mon, Jan 19
BWI
Baltimore
ONT
Ontario
$337 Roundtrip, found 5 days ago
$337
Roundtrip
found 5 days ago

Sun, Jan 4 - Mon, Jan 19
BWI
Baltimore
ONT
Ontario
$362 Roundtrip, found 5 days ago
$362
Roundtrip
found 5 days ago

Thu, Jan 15 - Sun, Jan 18
BWI
Baltimore
ONT
Ontario
$380 Roundtrip, found 1 day ago
$380
Roundtrip
found 1 day ago
Find the cheapest month to fly from Baltimore (BWI) to Ontario (ONT)
April is typically the cheapest month to fly
From $160 - $648 per traveler.
Origin airport | Baltimore Washington Intl. Thurgood Marshall |
|---|---|
Destination airport | Los Angeles - Ontario Intl. |
Airlines serving | American Airlines, Delta, Frontier Airlines, United |
Popular airline | Delta |
Distance | 3643 km |
Average flight time | 3 hours 13 mins |
Most Popular Frontier Airlines Routes from Baltimore
Most Popular Frontier Airlines Routes from Ontario
- Washington to Las Vegas (DCA - LAS)
- Atlanta to San Juan (ATL - SJU)
- Philadelphia to Las Vegas (PHL - LAS)
- Seattle to Phoenix (SEA - PHX)
- Tampa to Las Vegas (TPA - LAS)
- Trenton to Orlando (TTN - MCO)
- Atlanta to Columbus (ATL - CMH)
- Buffalo to San Juan (BUF - SJU)
- Buffalo to San Juan (BUF - SJU)
- Indianapolis to Miami (IND - MIA)
Popular Domestic Routes in Los Angeles - Ontario Intl.
- Seattle to Los Angeles (SEA - LAX)
- Chicago to Tampa (ORD - TPA)
- Newark Liberty Intl. Airport to Atlanta (EWR - ATL)
- New York to Miami (LGA - MIA)
- Seattle to Phoenix (SEA - PHX)
- Philadelphia to Las Vegas (PHL - LAS)
- Washington to Las Vegas (DCA - LAS)
- Newark Liberty Intl. Airport to Atlanta (EWR - ATL)
- Denver to Orlando (DEN - MCO)
- Buffalo to San Juan (BUF - SJU)