Cheap Flights from Reykjavik (KEF) to Washington (IAD)

Flights from Reykjavik (KEF) to Washington (IAD)
Origin airport
Keflavik Intl.
Destination airport
Washington Dulles Intl.
Distance
2791 mi

Reykjavik to Washington Flights

The cheapest times to fly from Reykjavik to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Reykjavik to Washington are during the month of . You can find some of the cheapest flights from Reykjavik to Washington with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Reykjavik to Washington

Sunday is one of the best days to book for cheap flights from Reykjavik to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Reykjavik to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Reykjavik to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Reykjavik to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Reykjavik to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How long does it take to fly from KEF to IAD?
A direct flight with Icelandair takes around 6 hours and 25 minutes. Take the 4:50PM flight from KEF and arrive at Dulles Intl. Airport at 7:15PM. Grab a fabulous deal on this and many other routes when you purchase your ticket with Expedia.
Is it cheaper to buy a plane ticket from KEF to Washington Dulles Intl. Airport (IAD) last minute?
When it comes to booking your flights, being prepared pays off. While it’s possible to pick up a deal on a KEF to Dulles Intl. Airport flight at the last minute, prices usually don’t get cheaper as the date of departure nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to lock in a domestic flight is between 28 – 35 days ahead. For international journeys it’s between three and four months.
What airline has the least delays from Reykjavík--Keflavík Airport to Washington Dulles Intl. Airport (IAD)?
If you’d rather not be stuck at the departure gate for hours — or worse, have your vacation upended due to a flight delay — fly with Icelandair. Around 55% of its KEF to Washington Dulles Intl. Airport (IAD) services are on time. You can check your flight status before you even get to the airport through the free Expedia App. It’ll also provide you with real-time alerts about other key info, such as gate changes, luggage carousel numbers and how to reach your hotel. Think of it as a travel companion that fits in your pocket!
What airports do you fly into for Washington from Reykjavik?
From Reykjavik, you can get to Washington via Washington Dulles Intl. Airport (IAD), Ronald Reagan Washington National Airport (DCA) and Baltimore Washington Intl. Thurgood Marshall Airport (BWI). Do some research into which hub is best for you before making your decision. If you pick Washington Dulles Intl. Airport (IAD), it’s around 25 mi west of the center of the city. Use the money you save when booking your seat with Expedia to enjoy the city’s top attractions, such as White House and United States Capitol.
What are the most popular departure times for flights from Reykjavík--Keflavík Airport to IAD?
The most popular departure times for flights from KEF to Dulles Intl. Airport are between 3:00 PM - 4:00 PM on Fly Play. Our tip is to take off in the morning. The earlier you take off, the better your odds of a delay-free flight with less air traffic around.
Can I change the date of my flight from KEF to IAD?
Quickly and easily make changes to your Keflavik Intl. Airport (KEF) to Washington Dulles Intl. Airport (IAD) flight through the Expedia Trips portal. Before you amend times or dates, browse the fare rules in your itinerary to see what you can do and if any charges apply. Some airlines charge a change fee per person, on top of any difference in prices. But if you booked in the last 24 hours, you may be able to cancel for free and arrange new flights. You can also take a look at our Customer Service portal for more advice and to connect with our Virtual Agent.

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*Available to One Key members.