Find cheap flights from Sioux Falls to Portland from $239

In the last 3 days, the lowest price for a flight from Sioux Falls to Portland, Maine was $239 for a one-way ticket and $443 for a round-trip.

No, a passport isn't needed to fly from Sioux Falls to Portland. However, local authorities might ask for an official ID.

On your way to Portland, you’ll fly out from Sioux Falls Joe Foss Field. You’ll be landing at Portland.

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

oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Sioux Falls and Portland, with SkyTeam being the most commonly used for this 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 Sioux Falls to Portland.

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portland from Sioux Falls 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 Sioux Falls with another airline. Booking your flights between Sioux Falls and PWM 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 Sioux Falls up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.