$725 Cheap Flights from Houston (IAH) to Kirkwall (KOI)

View $725 flight on Mon, Nov 3, 2025Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Kirkwall (KOI)

Cheap Flights from Houston to Kirkwall (IAH-KOI)

Prices were available within the past 7 days and start at $725 for one-way flights and $1,336 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Turkish Airlines
Mon, Nov 3 - Mon, Nov 10
IAH
Houston
KOI
Kirkwall
$1,336 Roundtrip, found 2 days ago
$1,336
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Mon, Nov 3 from Houston to Kirkwall, returning Mon, Nov 10, priced at $1,336 found 2 days ago
Turkish Airlines
Mon, Nov 3 - Mon, Nov 10
IAH
Houston
KOI
Kirkwall
$1,431 Roundtrip, found 2 days ago
$1,431
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Mon, Nov 3 from Houston to Kirkwall, returning Mon, Nov 10, priced at $1,431 found 2 days ago
Turkish Airlines
Sat, Dec 13 - Sat, Dec 20
IAH
Houston
KOI
Kirkwall
$1,536 Roundtrip, found 2 days ago
$1,536
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Sat, Dec 13 from Houston to Kirkwall, returning Sat, Dec 20, priced at $1,536 found 2 days ago
Turkish Airlines
Sat, Dec 13 - Sat, Dec 20
IAH
Houston
KOI
Kirkwall
$1,566 Roundtrip, found 2 days ago
$1,566
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Sat, Dec 13 from Houston to Kirkwall, returning Sat, Dec 20, priced at $1,566 found 2 days ago
Turkish Airlines
Sat, Dec 13 - Sat, Dec 20
IAH
Houston
KOI
Kirkwall
$1,632 Roundtrip, found 2 days ago
$1,632
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Sat, Dec 13 from Houston to Kirkwall, returning Sat, Dec 20, priced at $1,632 found 2 days ago
Turkish Airlines
Sat, Dec 13 - Sat, Dec 20
IAH
Houston
KOI
Kirkwall
$1,641 Roundtrip, found 2 days ago
$1,641
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Sat, Dec 13 from Houston to Kirkwall, returning Sat, Dec 20, priced at $1,641 found 2 days ago
Turkish Airlines
Mon, Nov 3 - Mon, Nov 10
IAH
Houston
KOI
Kirkwall
$1,886 Roundtrip, found 2 days ago
$1,886
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Mon, Nov 3 from Houston to Kirkwall, returning Mon, Nov 10, priced at $1,886 found 2 days ago
Turkish Airlines
Mon, Nov 3 - Mon, Nov 10
IAH
Houston
KOI
Kirkwall
$1,937 Roundtrip, found 2 days ago
$1,937
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Mon, Nov 3 from Houston to Kirkwall, returning Mon, Nov 10, priced at $1,937 found 2 days ago
Turkish Airlines
Sat, Dec 13 - Sat, Dec 20
IAH
Houston
KOI
Kirkwall
$1,946 Roundtrip, found 2 days ago
$1,946
Roundtrip
found 2 days ago
Select Turkish Airlines flight, departing Sat, Dec 13 from Houston to Kirkwall, returning Sat, Dec 20, priced at $1,946 found 2 days ago
British Airways
Thu, Nov 13 - Mon, Nov 17
IAH
Houston
KOI
Kirkwall
$2,468 Roundtrip, found 4 days ago
$2,468
Roundtrip
found 4 days ago
Select British Airways flight, departing Thu, Nov 13 from Houston to Kirkwall, returning Mon, Nov 17, priced at $2,468 found 4 days ago

Frequently asked questions

How much does a flight from George Bush Intercontinental Airport (IAH) to Kirkwall Airport (KOI) cost?
Secure a cheap one-way flight from $725 or cheap return flight from $1,336 from George Bush Intercontinental Airport (IAH) to Kirkwall Airport (KOI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from George Bush Intercontinental Airport (IAH) to Kirkwall Airport (KOI)?
The cheapest month to fly from IAH to KOI is November, when demand is low. Off-peak months are typically when airlines offer lower prices between these airports.
What is the cheapest airline that flies from George Bush Intercontinental Airport (IAH) to Kirkwall Airport (KOI)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest IAH to KOI flight.
How many flights per day from George Bush Intercontinental Airport (IAH) to Kirkwall Airport (KOI)?
Direct flights from George Bush Intercontinental Airport (IAH) to Kirkwall Airport (KOI) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from IAH to KOI?
Typically you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can change depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from George Bush Intercontinental Airport (IAH) to Kirkwall Airport (KOI)?
To reach Kirkwall Airport (KOI) on schedule, pick a flight that leaves from George Bush Intercontinental Airport (IAH) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 George Bush Intercontinental Airport (IAH) to Kirkwall Airport (KOI) last-minute?
Booking your flight from IAH to KOI just before your journey is generally more expensive. However, if you're flexible with your itinerary, you could bag a cheap last-minute fare.
Is it cheaper to book an IAH to KOI flight and hotel package?
Booking an IAH to KOI flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of hotels and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from George Bush Intercontinental Airport (IAH) to Kirkwall Airport (KOI)?
Typically, you can cancel or modify your IAH to KOI flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you'd like further details, head to our Customer Service portal.

Travel information

Origin airport
George Bush Intercontinental
Destination airport
Kirkwall
Roundtrip price
$1,336
Distance
4549 mi

Book with confidence

Houston to Kirkwall Flights

The cheapest times to fly from Houston 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 Houston to Kirkwall are during the month of November. You can find some of the cheapest flights from Houston to Kirkwall with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Houston to Kirkwall

Sunday is one of the best days to book for cheap flights from Houston 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 Houston 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 Houston to Kirkwall in 2025. You can also book with separate airlines for your outbound and return journeys, from $725 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 Houston 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 Houston 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.

 

Houston to Kirkwall Flights

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*Available to One Key members.