$139 Cheap Delta flights Detroit (DTW) to Ontario (ONT)

View $139 flight on Tue, Apr 7, 2026Opens in a new window

$139 Cheap Delta flights Detroit (DTW) to Ontario (ONT)

Prices were available within the past 7 days and start at $139 for one-way flights and $267 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Apr 7 - Tue, Apr 14
DTW
Detroit
ONT
Ontario
$267 Roundtrip, found 21 hours ago
$267
Roundtrip
found 21 hours ago
Select Delta flight, departing Tue, Apr 7 from Detroit to Ontario, returning Tue, Apr 14, priced at $267 found 21 hours ago
Delta
Tue, Apr 7 - Tue, Apr 14
DTW
Detroit
ONT
Ontario
$277 Roundtrip, found 21 hours ago
$277
Roundtrip
found 21 hours ago
Select Delta flight, departing Tue, Apr 7 from Detroit to Ontario, returning Tue, Apr 14, priced at $277 found 21 hours ago

Alternative airports near Ontario

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

Select flight to John Wayne SNA. Cheapest option available. Average driving time to city center is 42 minutes. Flights from $374
SNA
John Wayne
Cheapest
Average driving time to city center42 min
Flights from $374

Find the cheapest month to fly from Detroit (DTW) to Ontario (ONT)

February is typically the cheapest month to fly

From $140 - $515 per traveler.

Travel information

Origin airport
Detroit Metropolitan Wayne County
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, United
Popular airline
United
Distance
3087 km

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