$616 Cheap Flights from Washington (IAD) to Kirkwall (KOI)

View $616 flight on Tue, Dec 9, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Kirkwall (KOI)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Washington to Kirkwall (IAD-KOI)

Prices were available within the past 7 days and start at $616 for one-way flights and $908 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Turkish Airlines
Tue, Dec 9 - Tue, Dec 16
IAD
Washington
KOI
Kirkwall
$908 Roundtrip, found 6 days ago
$908
Roundtrip
found 6 days ago
Select Turkish Airlines flight, departing Tue, Dec 9 from Washington to Kirkwall, returning Tue, Dec 16, priced at $908 found 6 days ago
Turkish Airlines
Thu, Jan 15 - Mon, Jan 19
IAD
Washington
KOI
Kirkwall
$949 Roundtrip, found 8 hours ago
$949
Roundtrip
found 8 hours ago
Select Turkish Airlines flight, departing Thu, Jan 15 from Washington to Kirkwall, returning Mon, Jan 19, priced at $949 found 8 hours ago
British Airways
Thu, Jan 15 - Mon, Jan 19
IAD
Washington
KOI
Kirkwall
$958 Roundtrip, found 8 hours ago
$958
Roundtrip
found 8 hours ago
Select British Airways flight, departing Thu, Jan 15 from Washington to Kirkwall, returning Mon, Jan 19, priced at $958 found 8 hours ago
British Airways
Tue, Dec 9 - Tue, Dec 16
IAD
Washington
KOI
Kirkwall
$978 Roundtrip, found 6 days ago
$978
Roundtrip
found 6 days ago
Select British Airways flight, departing Tue, Dec 9 from Washington to Kirkwall, returning Tue, Dec 16, priced at $978 found 6 days ago
British Airways
Tue, Dec 9 - Tue, Dec 16
IAD
Washington
KOI
Kirkwall
$982 Roundtrip, found 6 days ago
$982
Roundtrip
found 6 days ago
Select British Airways flight, departing Tue, Dec 9 from Washington to Kirkwall, returning Tue, Dec 16, priced at $982 found 6 days ago
British Airways
Tue, Dec 9 - Tue, Dec 16
IAD
Washington
KOI
Kirkwall
$985 Roundtrip, found 6 days ago
$985
Roundtrip
found 6 days ago
Select British Airways flight, departing Tue, Dec 9 from Washington to Kirkwall, returning Tue, Dec 16, priced at $985 found 6 days ago
British Airways
Tue, Dec 9 - Tue, Dec 16
IAD
Washington
KOI
Kirkwall
$990 Roundtrip, found 6 days ago
$990
Roundtrip
found 6 days ago
Select British Airways flight, departing Tue, Dec 9 from Washington to Kirkwall, returning Tue, Dec 16, priced at $990 found 6 days ago
British Airways
Tue, Dec 9 - Tue, Dec 16
IAD
Washington
KOI
Kirkwall
$994 Roundtrip, found 6 days ago
$994
Roundtrip
found 6 days ago
Select British Airways flight, departing Tue, Dec 9 from Washington to Kirkwall, returning Tue, Dec 16, priced at $994 found 6 days ago
British Airways
Tue, Dec 9 - Tue, Dec 16
IAD
Washington
KOI
Kirkwall
$997 Roundtrip, found 6 days ago
$997
Roundtrip
found 6 days ago
Select British Airways flight, departing Tue, Dec 9 from Washington to Kirkwall, returning Tue, Dec 16, priced at $997 found 6 days ago
United
Sat, Nov 15 - Tue, Nov 25
IAD
Washington
KOI
Kirkwall
$1,090 Roundtrip, found 6 days ago
$1,090
Roundtrip
found 6 days ago
Select United flight, departing Sat, Nov 15 from Washington to Kirkwall, returning Tue, Nov 25, priced at $1,090 found 6 days ago

Alternative airports near Kirkwall

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Kirkwall KOI. Cheapest and Closest option available. Average driving time to city center is 5 minutes. Flights from $1,095
KOI
Kirkwall
CheapestClosest
Average driving time to city center5 min
Flights from $1,095

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Kirkwall Airport (KOI) cost?
Grab a cheap one-way flight from $616 or cheap return flight from $908 from Washington Dulles Intl. Airport (IAD) to Kirkwall Airport (KOI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Kirkwall Airport (KOI)?
December is the cheapest month to fly from IAD to KOI. Timing your trip outside of the busy season is often the key to scoring lower fares.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Kirkwall Airport (KOI)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll take you from IAD to KOI. Then, sort your results by "Price (lowest to highest)" to pick up the best deal available.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Kirkwall Airport (KOI)?
You'll need to catch a flight with a layover if you're traveling from Washington Dulles Intl. Airport (IAD) to Kirkwall Airport (KOI). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from IAD to KOI?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can vary based on various factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Kirkwall Airport (KOI)?
To touch down at Kirkwall Airport (KOI) on time, select a flight that leaves Washington Dulles Intl. Airport (IAD) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Kirkwall Airport (KOI) last-minute?
Last-minute bookings from IAD to KOI are typically more expensive. To lock in the lowest rates, start looking for flights as soon as possible. That said, if your travel plans are flexible, it's possible to land a cheap ticket right before you leave.
Is it cheaper to book an IAD to KOI flight and hotel package?
You'll typically save money by securing an IAD to KOI flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. After choosing your preferred flights and accommodations, consider other add-ons like activities, car rentals and tours.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Kirkwall Airport (KOI)?
You can usually reschedule or cancel your IAD to KOI flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Kirkwall
Airlines serving
British Airways
Roundtrip price
$908
Distance
3440 mi

Book with confidence

Washington to Kirkwall Flights

The cheapest times to fly from Washington to Kirkwall

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 Washington to Kirkwall are during the month of December. You can find some of the cheapest flights from Washington to Kirkwall with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Kirkwall

Sunday is one of the best days to book for cheap flights from Washington to Kirkwall: 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 Washington to Kirkwall

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 Washington to Kirkwall in 2025. You can also book with separate airlines for your outbound and return journeys, from $616 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 Washington to Kirkwall 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 Washington to Kirkwall 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.

 

Washington to Kirkwall Flights

Explore a world of travel with Expedia

*Available to One Key members.