San Bernardino Mountains

$219 Cheap American Airlines flights Baltimore (BWI) to Ontario Intl. Airport (ONT)

View $219 flight on Thu, Oct 22, 2026Opens in a new window

$219 Cheap American Airlines flights Baltimore (BWI) to Ontario Intl. Airport (ONT)

Prices were available within the past 7 days and start at $219 for one-way flights and $476 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, Jul 25 - Sat, Aug 1
BWI
Baltimore
ONT
Ontario
$476 Roundtrip, found 1 day ago
$476
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, Jul 25 from Baltimore to Ontario, returning Sat, Aug 1, priced at $476 found 1 day ago

Alternative airports near Ontario

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Los Angeles - Ontario Intl. ONT. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $413
ONT
Los Angeles - Ontario Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $413

Travel information

Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Ontario Intl. Airport
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, United
Popular airline
Frontier Airlines
Distance
3643 km
Average flight time
2 hours 40 mins

Explore a world of travel with Expedia