Cheap flights from Portland to Kahului from $128

The cheapest month to fly to Kahului from Portland is in January. Flight prices, which tend to average around $434, are often lower during this time because this is during the off-season. If you aren’t able to travel to Kahului during the month of January, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $437.

Our data shows that Monday is the least expensive day to fly to Kahului. Tickets to fly out on this day can be as low as $513. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Portland to Kahului for around $650.

Our data shows that the cheapest Portland to Kahului flights are usually those with departure times in the afternoon. Our users have found flights to Kahului in the afternoon for as low as $459. Flights in the morning are often more expensive with an average ticket price of $620.

Fly from Portland to Kahului for the best Portland - Kahului flight prices

You are more likely to see cheaper flights to Kahului from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Kahului for around $538 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kahului from Portland for as low as $434 on momondo.

There are 4 cabin classes available to choose from on Portland to Kahului flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between Portland to Kahului.

As of February 2026, prices for Portland to Kahului flights are approximately 26% more expensive when compared to flights at the same time last year.

American Airlines, Alaska Airlines, and Southwest are the most popular carriers operating from Portland to Kahului

Hawaiian Airlines, Southwest and United Airlines are the top three most popular airlines that fly to Kahului from Portland according to our data. Hawaiian Airlines is the first choice among our users, with 73% of people opting to fly with this airline when traveling to Kahului. Keep in mind that there are 6 different airlines that fly to Kahului on a routine basis, so you have a few additional options to choose from.

Seattle (SEA) was the most common stop: 44% of momondo users choosing 1-stop flights on this route connected there.

Flights via Oakland (OAK) offer the lowest average round-trip price of $426.

Flights connecting via Honolulu (HNL) have the shortest average one-way travel time: 8h 14m.

Oakland (OAK) has the shortest average layover time for this route: 1h 03m.

As of February 2026, 1 flights take off from Portland and land in Kahului each day. The most common flight departure time for this route is 7:00AM, with 50% of daily flights taking off at noon.

As of February 2026, there are 8 flights per week flying from Portland to Kahului. The most common day of the week flights depart is Tue, with 50% of flights taking off on this day.