Cheap flights from Portland to Iceland from $338

The cheapest month to fly to Iceland from Portland is in October. Flight prices, which tend to average around $464, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, then book flights to Iceland from Portland during December instead. Flights to Iceland in December, while not as cheap as those in October, still average around $573.

The cheapest day to depart from Portland to Iceland is on a Monday when prices can be found for as low as $612. Flights from Portland to Iceland on a Friday will generally be more expensive and average around $827. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

According to our data, the cheapest time of day to fly to Iceland is at noon. momondo users have found flights departing from Portland to Iceland at noon for as low as $588. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Try not to purchase tickets in the evening because they tend to be around $822. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Portland to Reykjavik Keflavik Intl for the best Portland - Iceland flight prices

You are more likely to see cheaper flights to Iceland from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Iceland for around $750 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Iceland from Portland for as low as $465 on momondo.

There are 3 cabin classes available to choose from on Portland to Iceland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

WestJet and United Airlines are the most popular carriers operating from Portland to Iceland

Icelandair, Alaska Airlines and United Airlines are the top three most popular airlines that fly to Iceland from Portland according to our data. Icelandair is the first choice among our users, with 88% of people opting to fly with this airline when traveling to Iceland. Keep in mind that there are 3 different airlines that fly to Iceland on a routine basis, so you have a few additional options to choose from.

As of August 2026, there are 1 flights per day flying from Portland to Iceland. The most common time of day flights depart is 3:00PM, with 66% of flights taking off in the afternoon.

9 flights are operational weekly from Portland to Iceland as of August 2026. The most popular departure day for this route is Tue, with 22% of flights per week taking off on this day.