Cheap Flights
to Kos from the USA
Compare Kos airline tickets, find cheap KGS airfare, and book your next trip to the Dodecanese gem — Hippocrates’ birthplace, Venetian castles, thermal springs, and some of the Aegean’s finest beaches.
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or request an offerCheap Kos Flights from the US
Top routes with lowest fares found in the last 48 hours. Prices shown are round-trip per person including taxes.
* Price Disclaimer: Fares shown are the lowest round-trip economy class prices found in the last 48 hours, per person, and include all taxes and carrier-imposed fees. Prices are subject to availability and may change without notice. Seats at advertised fares are limited. Additional baggage fees, seat selection charges, and other optional extras are not included. Fares are valid for the specific dates and routes shown. Prices displayed in USD. Final fare is confirmed at time of booking.
Airlines with Flights to Kos (KGS)
Compare carriers and hub connections available for flights from the US to Kos.
| Airline | Hub / Connection | Key US Routes | Approx. Travel Time | Code |
|---|---|---|---|---|
| Aegean Airlines | Athens (ATH) | ATH connections from all US gateways | 55 min from ATH | A3 |
| Delta Air Lines | Atlanta (ATL) / JFK | ATL, JFK (via ATH nonstop then KOS) | 13–16 hrs | DL |
| Lufthansa | Frankfurt (FRA) / Munich (MUC) | JFK, LAX, ORD, ATL (via FRA) | 13–17 hrs | LH |
| British Airways | London (LHR) | JFK, LAX, ORD, BOS, MIA (via LHR) | 13–17 hrs | BA |
| easyJet | Kos (KGS) | LGW, CDG, AMS (European connections) | 3–4h from Europe | U2 |
| Ryanair | Kos (KGS) | STN, DUB, BCN (European budget) | 3–4h from Europe | FR |
Why Fly to Kos, Greece?
Kos Airport (KGS) is well-served by European charter and budget carriers, with most US travelers connecting via Athens (ATH) or a Western European hub. From Kos you can take day trips to Rhodes (30 min by air), the Turkish coast at Bodrum (30 min by ferry), and neighbouring islands including Nisyros (volcanic crater) and Kalymnos (world sponge-diving capital).
Kos Airport (KGS) — Quick Facts
IATA Code
KGS
ICAO Code
LGKO
~26 km southwest of Kos Town
~35 min (KTEL Bus)
~25 min (€20–30)
Euro (EUR)
EET/EEST (UTC+2/+3)
How to Find the Cheapest Kos Airfare
Practical strategies to reduce the cost of your Kos airline tickets from the USA.
Book 6–8 Weeks Ahead
Kos airfare from the US tends to be lowest when booked 6–8 weeks before departure. Last-minute prices spike significantly.
Fly Mid-Week (Tue–Wed)
Tuesday and Wednesday departures to Kos are consistently 10–20% cheaper than Friday or Sunday flights. Use flexible date search to compare a full week.
Fly via Athens (ATH) — 55-Minute Connection
The standard US–Kos routing is via Athens — Delta flies nonstop from JFK and Atlanta to Athens, where Aegean Airlines connects to KGS in 55 minutes. This is the most direct and often most competitive Kos airfare routing from the USA. Book the full itinerary as one ticket for best connections.
May, June & September for Best Kos Value
Kos in July–August is at peak capacity — beaches are crowded, KGS airfare from the US is highest, and accommodation scarce. May, June, and September offer near-identical sea temperatures (26–28°C), far fewer crowds, and noticeably lower Kos airline ticket prices. October is ideal for those wanting the island almost to themselves.
Use Miles & Points
Frequent flyer miles can significantly cut Kos airline ticket costs. Check partner award availability to KGS — often better value than cash fares on long-haul routes.
Set Fare Alerts
Kos airfare fluctuates daily. Set a price alert on AirlineTickets.services to be notified when fares to KGS drop from your US departure city.
Flights to Kos from US — Top Questions
To find cheap flights to Kos from the US, use AirlineTickets.services to compare 500+ airlines with flexible date search. Book 6–8 weeks ahead, fly mid-week, and compare all hub routing options for the lowest Kos airfare.
Kos is served by Kos Airport (IATA: KGS, ICAO: LGKO), located ~26 km southwest of Kos Town. Rhodes RHO (~30 min by air / 2h by ferry), Athens ATH (~55 min by air) is the nearest alternative hub with additional connections.
Top airlines for US to Kos (KGS) flights include Aegean Airlines, Delta Air Lines, Lufthansa. Check for nonstop and one-stop options from your US departure city.
Shoulder seasons offer the best Kos airfare from the US. Avoid peak tourist periods and major local events. Mid-week departures (Tuesday–Wednesday) typically cost 10–20% less than weekend flights.
Total travel time from the US to Kos depends on routing. Nonstop flights (where available) range from 10–15 hours from the East Coast; connecting itineraries add 2–4 hours including layover time.
Kos Airport (KGS) is located ~26 km southwest of Kos Town. Bus takes approximately ~35 min (KTEL Bus), while a taxi takes around ~25 min (€20–30).
Flights to Kos from the US — Your Complete Guide
Economy round-trip fares to Kos (KGS) from major US cities typically range $699–$1,300 round-trip. Use our search tool above to compare all airlines for your exact dates and lock in the best available Kos airfare. No booking fees — ever.
Everything to Know About Cheap Flights to Kos
Flights to Kos from USA: What to Expect
Kos is one of the Dodecanese islands of the southeastern Aegean — the birthplace of Hippocrates (father of medicine), a sun-drenched island of ancient ruins, a charming harbour town with a Crusader castle, thermal spa beaches, and a remarkably laid-back atmosphere. Close to the Turkish coast (just 4 km from Bodrum), Kos offers a unique blend of Greek and Aegean cultures. Use AirlineTickets.services to compare all available routings and find the lowest cheap flights to Kos from your nearest US departure city.
Kos Airfare: Budget Tips for US Travelers
Kos airfare from the USA typically ranges $699–$1,300 round-trip in economy class. Use flexible date search, compare all hub connection options, and set fare alerts for your preferred travel window to secure the best deal on Kos airline tickets.
Kos Airline Tickets: Booking Advice
When comparing Kos airline tickets, always verify whether your itinerary is a through-ticket or two separate bookings. Through-tickets with a single airline or alliance offer better rebooking rights if a connection is missed. Book at least 6 weeks in advance for best fares.
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