Find cheap flights from Hamilton to Portland from $143

In the last 3 days, the lowest price for a flight from Hamilton, Ontario to Portland was $143 for a one-way ticket and $357 for a round-trip.

Yes, you'll most likely have to show a valid passport before boarding the plane in Hamilton and on arrival in Portland.

On your way to Portland, you’ll fly out from Hamilton. You’ll be landing at Portland.

We unfortunately don’t have that data for this specific route.

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Hamilton to Portland.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portland from Hamilton is likely to change within 7 days, so travelers know whether to wait or book now.

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Portland with an airline and back to Hamilton with another airline. Booking your flights between Hamilton and PDX can sometimes prove cheaper using this method.

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Portland from Hamilton up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.