Cheap Flights from Guam (GUM) to Kos (KGS)

Popular airlines from Barrigada - A.B. Won Pat International Airport (GUM) to Kos (KGS-Kos Island Intl.)

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Frequently asked questions

How much does a flight from A.B. Won Pat Intl. Airport (GUM) to Kos Island Intl. Airport (KGS) cost?
Lock in a cheap one-way flight or cheap return flight from A.B. Won Pat Intl. Airport (GUM) to Kos Island Intl. Airport (KGS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from A.B. Won Pat Intl. Airport (GUM) to Kos Island Intl. Airport (KGS)?
The cheapest month to fly from GUM to KGS is , when there's less demand. Off-peak season is often when you'll find lower airfares between these airports.
What is the cheapest airline that flies from A.B. Won Pat Intl. Airport (GUM) to Kos Island Intl. Airport (KGS)?
To find the cheapest airline that'll fly you from GUM to KGS, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from A.B. Won Pat Intl. Airport (GUM) to Kos Island Intl. Airport (KGS)?
You'll need to take a flight with a layover if you're traveling from A.B. Won Pat Intl. Airport (GUM) to Kos Island Intl. Airport (KGS). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to discover an option that works for you.
What day of the week has the most flights from GUM to KGS?
Generally 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 airline, time of year 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 A.B. Won Pat Intl. Airport (GUM) to Kos Island Intl. Airport (KGS)?
To avoid possible delays on the A.B. Won Pat Intl. Airport (GUM) to Kos Island Intl. Airport (KGS) route, aim to fly before 3 PM. Departures after this hour have a 22% higher chance of being canceled.**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 A.B. Won Pat Intl. Airport (GUM) to Kos Island Intl. Airport (KGS) last-minute?
Booking your plane ticket from GUM to KGS right before your getaway is typically more expensive. However, if you're flexible with your departure times and dates, you could score a cheap last-minute fare.
Is it cheaper to book a GUM to KGS flight and hotel package?
Compared with arranging flights and hotels separately, booking a GUM to KGS flight and hotel package with Expedia could result in significant savings. Better still, having everything in one place takes the hassle out of planning your trip. Just pick your flights and select from our extensive range of hotels, then personalize your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from A.B. Won Pat Intl. Airport (GUM) to Kos Island Intl. Airport (KGS)?
Typically, it's possible to cancel or reschedule your GUM to KGS flight. However, for bookings 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 more information on our Customer Service portal.

Travel information

Origin airport
A.B. Won Pat Intl.
Destination airport
Kos Island Intl.
Distance
7105 mi

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Guam to Kos Flights

The cheapest times to fly from Guam to Kos

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

 

The best time to book a flight from Guam to Kos

Sunday is one of the best days to book for cheap flights from Guam to Kos: 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 Guam to Kos

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 Guam to Kos in 2026. 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 Guam to Kos 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 Guam to Kos 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.

 

Guam to Kos Flights

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*Available to One Key members.