Cheap flights from Washington, D.C. Dulles Intl Airport to Reykjavik from $343

The month of October is, on average, the cheapest month to fly to Reykjavik Keflavik Intl Airport from Washington, D.C. Dulles Intl Airport, with most prices found around $378. If you’re not able to fly to Reykjavik Keflavik Intl Airport in October, then September is your next best option. Flight prices from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport during September average around $399.

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport is on a Sunday when prices can be found for as low as $550. The most expensive day to fly to Reykjavik Keflavik Intl Airport is Thursday, with ticket prices averaging around $586.

The cheapest time of day to fly to Reykjavik Keflavik Intl Airport is in the afternoon when flights can be purchased for as low as $489. Flights in the evening are often more expensive with an average ticket price of $568.

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

You are more likely to see cheaper flights to Reykjavik Keflavik Intl Airport from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Reykjavik Keflavik Intl Airport for around $525 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Reykjavik Keflavik Intl Airport from Washington, D.C. Dulles Intl Airport for as low as $473 on momondo.

You could potentially save up to 30% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport flight.

As of May 2026, prices for Washington, D.C. Dulles Intl Airport to Reykjavik Keflavik Intl Airport flights are approximately 176% more expensive when compared to flights at the same time last year.

Historically, on average around 10% of flights between Washington, D.C. and Reykjavik 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.