Cheap flights from Washington, D.C. Dulles Intl Airport to Iceland from $378

The cheapest month to fly to Iceland from Washington, D.C. Dulles Intl Airport is in October. Flight prices, which tend to average around $361, 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 Washington, D.C. Dulles Intl Airport during September instead. Flights to Iceland in September, while not as cheap as those in October, still average around $379.

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to Iceland is on a Sunday when prices can be found for as low as $550. Flights from Washington, D.C. Dulles Intl Airport to Iceland on a Thursday will generally be more expensive and average around $586. 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 in the afternoon. momondo users have found flights departing from Washington, D.C. Dulles Intl Airport to Iceland in the afternoon for as low as $489. 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 $565. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Washington, D.C. Dulles Intl to Reykjavik Keflavik Intl for the best Washington, D.C. Dulles Intl - Iceland flight prices

You are more likely to see cheaper flights to Iceland from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Iceland for around $524 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Iceland from Washington, D.C. Dulles Intl Airport for as low as $473 on momondo.

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

Historically, on average around 10% of flights between Washington, D.C. and Iceland have experienced a delay on any given week. The average delay length over the past 12 months has been 157 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Wednesday has historically seen more delays on average compared to the rest of the week.

According to our data, Icelandair have had the least number of delays on this route over the last 12 months; with about 10% of their flights experiencing any sort of delay.

The number of flights available between Washington, D.C. Dulles Intl Airport and Iceland is 1 per day as of April 2026. The most frequent departure time is 8:00PM, with 100% of daily flights leaving in the evening.

As of April 2026, 7 flights take off from Washington, D.C. Dulles Intl Airport and land in Iceland each week. The most common flight departure day for this route is Fri, with 29% of weekly flights taking off on this day.