San Bernardino Mountains

$292 Cheap United flights Baltimore (BWI) to Ontario Intl. Airport (ONT)

View $292 flight on Sat, Jul 25, 2026Opens in a new window

$292 Cheap United flights Baltimore (BWI) to Ontario Intl. Airport (ONT)

Prices were available within the past 7 days and start at $292 for one-way flights and $651 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Jul 25 - Sat, Aug 1
BWI
Baltimore
ONT
Ontario
$651 Roundtrip, found 1 day ago
$651
Roundtrip
found 1 day ago
Select United flight, departing Sat, Jul 25 from Baltimore to Ontario, returning Sat, Aug 1, priced at $651 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

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