Flights Köln (Cologne) → Kos Island
As of November 2026, economy flights from Köln (Cologne) to Kos Island have a typical range EUR 477–2212, median EUR 607. Full range across all 201 offers: EUR 389–5677. We analyzed 201 offers from 6 airlines in a single price check.
Preview snapshot — prices change. Search for live results.
Data collected by LetsFG's multi-source price checks — every airline and the major booking sites checked for this route. How we collect data →
Best offers by airline: Köln (Cologne) → Kos Island
Based on 201 offers · November 2026. Prices and availability change — run a live search to confirm.
Bag & seat fees: Köln (Cologne) → Kos Island
Add-on pricing from the cheapest available offer per airline · November 2026 · EUR
| Airline | Carry-on | Checked bag | Seat selection |
|---|---|---|---|
| Eurowings | — | — | — |
| SWISS | — | — | — |
| Aegean Airlines | — | — | — |
| Austrian Airlines | — | — | — |
| Lufthansa | — | — | — |
Fees are estimates from the prices we checked and may not reflect your specific itinerary, booking class, or payment method. Run a live search for exact pricing.
How much do flights from Köln (Cologne) to Kos Island cost?
Based on 201 offers · November 2026
Köln (Cologne) to Kos Island flights ranged from EUR 389 to EUR 5677 across 201 offers analyzed in November 2026. The chart below shows how prices distributed across all 201 offers.
These 201 offers (November 2026) span multiple departure dates and booking windows — your travel dates may fall anywhere in this distribution. Only a live search shows where your specific trip lands.
50% of offers priced between EUR 517 and EUR 1475
What hidden fees do Köln (Cologne) to Kos Island flights charge?
Ancillary fees — bags, seat selection, and payment surcharges — can add 10–25% to the base fare on Köln (Cologne) to Kos Island routes. The breakdown below is based on 201 offers analyzed in November 2026.
| Carrier | Avg fee (EUR) | % of base fare |
|---|---|---|
| EW | 5 | 0% |
| LX | 12 | 1% |
| A3 | 7 | 1% |
| OS | 10 | 1% |
| LH | 10 | 1% |
Swiss: base ~EUR 529 + fees EUR 12 = ~EUR 541 total. Eurowings: base ~EUR 960 + fees EUR 5 = ~EUR 965 total.
Swiss's EUR 12 ancillary fees narrow the gap with Eurowings's lower-fee model — the EUR 431 base difference shrinks to EUR 424 after fees. Always compare total cost, not just the advertised base fare.
Estimates based on median total minus average ancillary fee. Actual base fares vary by itinerary.LX charges 2.4x more in ancillary fees than EW on this route. Compare total-cost options when booking.
Run your search to see itemized fees for your itineraryWhich airline is cheapest from Köln (Cologne) to Kos Island?
6 airlines flew Köln (Cologne) to Kos Island in this dataset. Knowing the airline isn't enough — the typical fare range below shows how far prices swing on each one. Median and range include all fees we recorded.
Even on the cheapest airline (Eurowings), fares ranged EUR 389–623 in this snapshot. Your exact price depends on your dates and how far ahead you book — run a live search to see your number →
| Airline | Offers | Typical range (EUR) | Median (EUR) | Fees (EUR) |
|---|---|---|---|---|
 Eurowings | 20 | 389–623 | 484 | n/a |
 Swiss | 57 | 459–2248 | 541 | 12 (2%) |
 Austrian | 48 | 508–1685 | 588 | 10 (2%) |
 Aegean Airlines | 12 | 534–1053 | 740 | 7 (1%) |
 Eurowings | 21 | 544–2167 | 965 | 5 (1%) |
 Lufthansa | 43 | 524–2345 | 1455 | 10 (1%) |
Where do the best Köln (Cologne) → Kos Island prices come from?
We checked direct airlines, travel agencies, and meta-search for this route. On this route the lowest median came from travel agency sources, but the cheapest channel shifts by route and date — which is exactly why a live search across all of them wins.
We compare every airline and the major booking sites but never disclose which — that's our edge. Prices are the ones we observed and aren't official data from any platform. Run a live search and we bring you the cheapest, wherever it is.
Key facts: Köln (Cologne) to Kos Island flights
- Köln (Cologne)–Kos Island had 201 offers analyzed. Median price: EUR 607.
- LX charges 2.4x more in ancillary fees than EW — EUR 12 vs EUR 5 avg per booking.
- The same route priced EUR 194 apart depending on where it was booked — the lowest median was EUR 484. We search every airline and the major booking sites at once so you always see that lowest price.
Frequently asked questions
- How much does a flight from Köln (Cologne) to Kos Island cost?
- Based on 201 offers analyzed, Köln (Cologne) to Kos Island flights range from EUR 389 to EUR 5677, with a median price of EUR 607. Search for your specific dates →
- What hidden fees should I expect on Köln (Cologne) to Kos Island flights?
- On average, ancillary fees (bags, seat selection) add EUR 10 to the base fare on Köln (Cologne) to Kos Island flights. See itemized fees for your itinerary →
- Which airline is cheapest on Köln (Cologne) to Kos Island including all fees?
- Eurowings has the lowest median fare on Köln (Cologne) to Kos Island at EUR 484 (median across 20 offers in our snapshot). Check which airline wins on your dates →
- Which booking site has the cheapest Köln (Cologne)–Kos Island flights?
- It depends on your dates — no single site is always cheapest. We search every airline and the major booking sites at once (travel agencies and meta-search included) and surface whichever is lowest; the best median in this snapshot was EUR 484. Run a live search and we'll find the cheapest for you →
- Why do prices vary so much on Köln (Cologne) to Kos Island routes?
- Köln (Cologne) to Kos Island has 6 airlines competing, creating a price range from EUR 389 to EUR 5677 across 201 offers. Prices on this route change with booking timing, advance purchase, and ancillary add-ons. Find where your trip lands in the distribution →
6 airlines compete on this route — we check every one
Find flights for my datesNew route — be among the first to track this itinerary
Building with flight data? Power your app or agent with LetsFG
The same multi-source search behind this page — every airline and the major booking sites, deduplicated and ranked — is available to your app or AI agent. Natural-language or structured queries, live prices, zero price bias.
Try the free sandbox — no card →Free sandbox, instant fake results · email for a key · Bearer-token auth · MCP, Python & JS SDKs · letsfg.co/developers