$518 Cheap Swiss International Air Lines flights New York (JFK) to Kos (KGS)

Finding cheap one-way SWISS flights from JFK to KGS from $518 on Expedia is a cinch — just filter by “Price (lowest to highest).” Or check out our budget-friendly round-trip fares from $640 for your next exciting vacation.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

December is one of the least expensive months to jet off to Kos with SWISS. You could also find great prices on return and one-way fares in February.

Landing the best SWISS deals from JFK to KGS is typically all about timing. You can save 17% on international flights when you book 18 to 29 days before takeoff instead of four to five months ahead. As an added bonus, you can pocket 17% on average by buying your fare on a Sunday compared to a Friday, which is often the most expensive day to book.* It’s a good idea to start checking out flights about one month before your travel dates.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Simply enter your dates, press search and check the “Nonstop” filter on Expedia to find any direct flights from JFK to KGS with SWISS or another carrier.

Find SWISS’s earliest flights from JFK to KGS by using the “Early Morning” and “Morning” filters. Not only will you arrive at your destination sooner, early departures are also 20% less likely to be canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Board a SWISS flight from John F. Kennedy Intl. Airport (JFK) to Kos, and you’ll most likely touch down at Kos Island Intl. Airport (KGS). This is the airline’s primary hub in this city.

On a standard economy flight with SWISS from JFK to KGS, you can bring 1 checked-in bag up to 50 lb with dimensions no larger than 62 inches in total. For hand luggage, you’re permitted 1 cabin bag weighing up to 17 lb and measuring less than 22 inches x 21 inches x 5 inches. Weight and size limits may differ depending on your airfare type and cabin class. To make sure you’re not hit with extra charges at the terminal, double-check your SWISS booking or go to the airline’s website before you start packing.

Traveling from JFK to KGS with SWISS comes with a variety of perks, such as a rewarding loyalty program and a 4-star airline rating. Plus, when you book through Expedia, One Key™ members can collect OneKeyCash™* to spend on select future travel purchases. That’s in addition to the Swiss Miles & More points you can earn with SWISS.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are often free within 24 hours of booking, but your airline may charge you after that time. For further information about altering your reservation, go to your “Trips,” select your flight and click on “Manage Booking.” If you’d like the flexibility to update your itinerary without additional charges, check the “Changes included” and “No cancel fee” filters when planning your trip.