Cheap flights from Portland to Cincinnati from $113

The month of October is, on average, the cheapest month to fly to Cincinnati from Portland, with most prices found around $306. If you aren’t able to travel to Cincinnati during the month of October, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $346.

According to our data, Tuesday is the cheapest day to fly to Cincinnati from Portland. The lowest ticket price found for a Tuesday departure recently was $134. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Wednesday is the most expensive day to depart from Portland because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $320.

Our most recent data shows that the best time of day to fly to Cincinnati is in the morning. Flights from Portland to Cincinnati during this time can be as low as $118. At noon is when there is more demand to fly to Cincinnati, so prices are often more expensive at around $260 per ticket.

Fly from Portland to Cincinnati Cinci./N. Kentucky for the best Portland - Cincinnati Cinci./N. Kentucky flight prices

You are more likely to see cheaper flights to Cincinnati from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Cincinnati for around $426 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Cincinnati from Portland for as low as $262 on momondo.

There is only 1 cabin class available to choose from on Portland to Cincinnati flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 42% on your flight if you consider stops on a Portland to Cincinnati flight.

As of August 2026, prices for Portland to Cincinnati flights are approximately 47% more expensive when compared to flights at the same time last year.

United Airlines, Southwest, and Frontier are the most popular carriers operating from Portland to Cincinnati Cinci./N. Kentucky

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Cincinnati from Portland according to our data. United Airlines is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Cincinnati. Keep in mind that there are 7 different airlines that fly to Cincinnati on a routine basis, so you have a few additional options to choose from.

Chicago (ORD) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via Chicago (ORD) offer the lowest average round-trip price of $328.

Flights connecting via Chicago (ORD) have the shortest average one-way travel time: 6h 58m.

Chicago (ORD) has the shortest average layover time for this route: 0h 57m.