Cheap flights from Portland to Tokyo from $387

The cheapest month to fly to Tokyo from Portland is in January. Flight prices, which tend to average around $741, are often lower during this time because this is during the off-season. If you’re not able to fly to Tokyo in January, then February is your next best option. Flight prices from Portland to Tokyo during February average around $768.

You are more likely to see cheaper flights to Tokyo from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Tokyo for around $1,099 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Tokyo from Portland for as low as $851 on momondo.

You could potentially save up to 5% on your flight if you consider stops on a Portland to Tokyo flight.

As of October 2026, prices for Portland to Tokyo flights are approximately 25% cheaper when compared to flights at the same time last year.

Alaska Airlines, Delta, and United Airlines are the most popular carriers operating from Portland to Tokyo

Delta, ANA and Air Canada are the top three most popular airlines that fly to Tokyo from Portland according to our data. Delta is the first choice among our users, with 31% of people opting to fly with this airline when traveling to Tokyo. Keep in mind that there are 8 different airlines that fly to Tokyo 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 Honolulu (HNL) offer the lowest average round-trip price of $593.

Flights connecting via Vancouver (YVR) have the shortest average one-way travel time: 12h 45m.

Seattle (SEA) has the shortest average layover time for this route: 2h 05m.