Cheap flights from Ontario to Portland
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The area of the present day Portland was inhabited before the discovery of America by a Native American tribe named Abenaki. The Abenaki people used to call the peninsula Machigonne (‘great neck’). The first European to settle around Casco Bay was Christopher Levett, in 1623. Unfortunately, Levett died during his trip back to England and didn’t succeed in attracting other settlers. Ten years later, George Cleeve and Richard Tucker established a fishing and trading village on... (read more in our Portland History)
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Check our newest flight offers to Portland:
- $548
Frontier Airlines
cheapoair.com check priceFrom To Departure Time Ontario, CA (ONT) Portland, OR (PDX) 04/22/2025 01:19 pm Portland, OR (PDX) Ontario, CA (ONT) 04/29/2025 06:20 am
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