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

View $219 flight on Thu, Sep 24, 2026Opens in a new window

$219 Cheap Delta 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 $405 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Jul 25 - Sat, Aug 1
BWI
Baltimore
ONT
Ontario
$405 Roundtrip, found 1 day ago
$405
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Jul 25 from Baltimore to Ontario, returning Sat, Aug 1, priced at $405 found 1 day ago
Delta
Tue, Dec 1 - Fri, Dec 11
BWI
Baltimore
ONT
Ontario
$550 Roundtrip, found 3 hours ago
$550
Roundtrip
found 3 hours ago
Select Delta flight, departing Tue, Dec 1 from Baltimore to Ontario, returning Fri, Dec 11, priced at $550 found 3 hours 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 $437
ONT
Los Angeles - Ontario Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $437

Travel information

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

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