Cheap flights from Cincinnati to Portland from $65

The cheapest month to fly to Portland from Cincinnati is in September. Flight prices, which tend to average around $169, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in September, then you should wait until August to fly from Cincinnati, when ticket prices are also cheap, with an average price of $223.

The cheapest day to depart on your flight to Portland is on a Wednesday when prices can be found for as low as $140. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Portland is Thursday, with ticket prices averaging around $255.

The cheapest time of day to fly to Portland is at noon when flights can be purchased for as low as $156. In the morning is when there is more demand to fly to Portland, so prices are often more expensive at around $171 per ticket.

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

You are more likely to see cheaper flights to Portland from Cincinnati when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland for around $327 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from Cincinnati for as low as $211 on momondo.

You could potentially save up to 18% on your flight if you consider stops on a Cincinnati to Portland flight.

As of May 2026, prices for Cincinnati to Portland flights are approximately 71% more expensive when compared to flights at the same time last year.

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

Delta, Allegiant Air and American Airlines are the top three most popular airlines that fly to Portland from Cincinnati according to our data. Delta is the first choice among our users, with 26% of people opting to fly with this airline when traveling to Portland. Keep in mind that there are 7 different airlines that fly to Portland on a routine basis, so you have a few additional options to choose from.

Seattle (SEA) was the most common stop: 43% of momondo users choosing 1-stop flights on this route connected there.

Flights via Denver (DEN) offer the lowest average round-trip price of $262.

Flights connecting via Salt Lake City (SLC) have the shortest average one-way travel time: 6h 03m.

Chicago (MDW) has the shortest average layover time for this route: 0h 55m.