Photo by Ontario Convention & Visitors Bureau / Jon Edwards.

Cheap United flights Baltimore (BWI) to Ontario (ONT)
Prices were available within the past 7 days and start at for one-way flights and $447 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jan 15 - Mon, Jan 26
BWI
Baltimore
ONT
Ontario
$447 Roundtrip, found 1 day ago
$447
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 United Routes from Baltimore
Most Popular United Routes from Ontario
- Indianapolis to Tampa (IND - TPA)
- Tampa to Las Vegas (TPA - LAS)
- Newark Liberty Intl. Airport to Denver (EWR - DEN)
- Lincoln to San Jose (LNK - SJC)
- Washington to Bangkok (IAD - BKK)
- Portland to Washington (PWM - IAD)
- Grand Rapids to Houston (GRR - IAH)
- Seattle to Los Angeles (SEA - LAX)
- Washington to Bangkok (IAD - BKK)
- Wilkes-Barre to Knoxville (AVP - TYS)
Popular Domestic Routes in Los Angeles - Ontario Intl.
- Baton Rouge to Baltimore (BTR - BWI)
- Tampa to Las Vegas (TPA - LAS)
- Albany to Houston (ALB - IAH)
- Portland to Washington (PWM - IAD)
- Columbus to Orlando (CMH - MCO)
- Portland to Washington (PWM - IAD)
- Seattle to Los Angeles (SEA - LAX)
- Austin to El Paso (AUS - ELP)
- Indianapolis to Tampa (IND - TPA)
- Peoria to State College (PIA - SCE)