$710 Cheap Lufthansa flights Boston (BOS) to Kos (KGS)

Use the “Price (lowest to highest)” filter on Expedia to search for cheap Lufthansa return flights from $839 from BOS to KGS. Affordable one-way tickets from $710 are available too.**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 most affordable months to jet off to Kos with Lufthansa. You could also find great prices on return and one-way tickets in February.

Check for Lufthansa flights from BOS to KGS about one month before you want to leave. The cheapest time to book an international flight is generally 18 to 29 days ahead of your travel date when you can save 17% versus booking four to five months in advance. No matter your itinerary and fare class, the best day to book international airfare is usually Sunday. Friday can be the most expensive. Passengers who book on a Sunday can save an average of 17% compared to those who book on a Friday.**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.

To figure out if there’s a direct trip from BOS to KGS with Lufthansa or any other airlines, use our “Nonstop” filter when browsing for tickets.

Search Lufthansa’s earliest flights from BOS to KGS by using the “Early Morning” and “Morning” filters. Not only will you arrive at your destination sooner, early departures also have a 20% less chance of being 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.

Lufthansa flights from Logan Intl. Airport (BOS) to Kos come in to Kos Island Intl. Airport (KGS). This is the main entry point here.

For checked luggage, you can take 1 checked-in bag weighing up to 50 lb with dimensions not exceeding 62 inches. You can also travel with 2 cabin bags on board when flying standard economy from BOS to KGS with Lufthansa. This carry-on must weigh less than 17 lb and be no bigger than 21 inches x 15 inches x 9 inches. Going over these limits can mean additional charges, so check Lufthansa’s baggage allowance policies before you begin packing.

Traveling from BOS to KGS with Lufthansa comes with a host of benefits, including top-tier customer service and a rewarding loyalty program. Plus, when booking through Expedia, One Key™ members can collect OneKeyCash™* to spend on select future travel purchases. That’s in addition to the Lufthansa Miles and More points you can earn with Lufthansa.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

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