Detroit (DTW) → Ontario (ONT)

Detroit (DTW) to Ontario (ONT) in September 2027

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CheapestLowHigherTypical $615

September 2027from $575 · 30 trips

Detroit (DTW) to Ontario (ONT): what SlickTrip has seen

Cheapest economy round trip (7 nights) in September 2027: $575 leaving Wed, Sep 1, for 1 traveler.

Find the best deals on economy class flights. Compare prices for direct flights, one-stop, and multi-stop options.

Cheapest round trip of 5, 7, 10 nights fare in September 2027: $575 on 2027-09-01, for 1 traveler.

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