$1,098 Cheap Flights from Kos (KGS) to Buffalo (BUF)
Popular airlines from Kos (KGS-Kos Island Intl.) to Buffalo Niagara Intl. Airport (BUF)
American AirlinesAmerican Airlines
UnitedUnited
Southwest AirlinesSouthwest Airlines
DeltaDelta
Frontier AirlinesFrontier Airlines
JetBlue AirwaysJetBlue Airways
Alaska AirlinesAlaska Airlines
Be in the knowGet alerts if flight prices drop or rise*
Book smarterSave up to 30% on select hotels after you book a flight*
Cheap Flights from Kos to Buffalo (KGS-BUF)
Book with confidence
Kos to Buffalo Flights
The cheapest times to fly from Kos to Buffalo
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 Kos to Buffalo are during the month of . You can find some of the cheapest flights from Kos to Buffalo with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Kos to Buffalo
Sunday is one of the best days to book for cheap flights from Kos to Buffalo: 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 Kos to Buffalo
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 Kos to Buffalo in 2026. You can also book with separate airlines for your outbound and return journeys, from $1,098 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 Kos to Buffalo 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 Kos to Buffalo 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 much does a flight from Kos Island Intl. Airport (KGS) to Buffalo Niagara Intl. Airport (BUF) cost?
Lock in a cheap one-way flight from $1,098 or cheap return flight from Kos Island Intl. Airport (KGS) to Buffalo Niagara Intl. Airport (BUF) 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 Kos Island Intl. Airport (KGS) to Buffalo Niagara Intl. Airport (BUF)?
is the least expensive month to fly from KGS to BUF. Timing your trip outside of the busy season is often the key to finding a great deal.
What is the cheapest airline that flies from Kos Island Intl. Airport (KGS) to Buffalo Niagara Intl. Airport (BUF)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest KGS to BUF flight.
How many flights per day from Kos Island Intl. Airport (KGS) to Buffalo Niagara Intl. Airport (BUF)?
There aren't any daily nonstop flights from Kos Island Intl. Airport (KGS) to Buffalo Niagara Intl. Airport (BUF). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from KGS to BUF?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.
*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Kos Island Intl. Airport (KGS) to Buffalo Niagara Intl. Airport (BUF)?
To avoid potential delays on the Kos Island Intl. Airport (KGS) to Buffalo Niagara Intl. Airport (BUF) route, aim to travel before 3 PM. Departures after this time have a 22% higher chance of cancellation.*
*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 Kos Island Intl. Airport (KGS) to Buffalo Niagara Intl. Airport (BUF) last-minute?
Booking your flight from KGS to BUF right before your trip is typically more expensive. However, if you're flexible with your travel dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book a KGS to BUF flight and hotel package?
Compared with arranging hotels and flights separately, booking a KGS to BUF flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one convenient place takes the hassle out of planning your trip. Simply secure your flights and select from our extensive range of stays, then tailor your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Kos Island Intl. Airport (KGS) to Buffalo Niagara Intl. Airport (BUF)?
If you booked your KGS to BUF flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.
Travel information
Origin airport | Kos |
|---|---|
Destination airport | Buffalo Niagara Intl. Airport |
Distance | 5,225 miles away |
Roundtrip price | $1,098 |