Cheap flights from Portland to Athens from $311

The cheapest month to fly to Athens from Portland is in February. Flight prices, which tend to average around $525, are often lower during this time because this is during the off-season. If you are unable to visit Athens during the month of February, then departing from Portland during the month November is also very affordable. Most momondo users find prices during this month for around $644.

You are more likely to see cheaper flights to Athens from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Athens for around $947 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Athens from Portland for as low as $727 on momondo.

You could potentially save up to 49% on your flight if you consider stops on a Portland to Athens flight.

As of May 2026, prices for Portland to Athens flights are approximately 5% more expensive when compared to flights at the same time last year.

United Airlines and KLM are the most popular carriers operating from Portland to Athens Eleftherios V.

Delta, KLM and United Airlines are the top three most popular airlines that fly to Athens from Portland according to our data. Delta is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Athens. Keep in mind that there are 10 different airlines that fly to Athens on a routine basis, so you have a few additional options to choose from.

Amsterdam (AMS) was the most common stop: 65% of momondo users choosing 1-stop flights on this route connected there.

Flights via London (LHR) offer the lowest average round-trip price of $753.

Flights connecting via Chicago (ORD) have the shortest average one-way travel time: 16h 05m.

Amsterdam (AMS) has the shortest average layover time for this route: 2h 40m.