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Flights from Santorini to Kos

Cheap flight deals from Santorini to Kos

Find flight deals from Santorini to Kos for the next 3 months. Book one way flights from €57 or round trip flights from €126.

Deals on upcoming round-trip flights from Santorini to Kos

Deals on upcoming one-way flights from Santorini to Kos

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Flight Info | Santorini to Kos

The distance between Santorini and Kos is about 150.45 km. The most popular month to Kos is April. The off-season for travel is May.

Cheapest one-way flight price€57
Cheapest return ticket price€126
Off-season for travelMay
Peak season for travelApril
Flight distance150.45 km

When is the cheapest time to fly from Santorini to Kos?

The cheapest time for Santorini to Kos flights: Oct 19 to Oct 26 — one way flight prices from €57.

Cheapest flights
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  • Oct

    285
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  • Nov

    262
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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Frequently Asked Questions

  • What are the cheapest flights from Santorini to Kos (JTR-KGS)?

    Based on Trip.com data, SKY express offers one-way fares as low as €57 on Cheapest nonstop routes (e.g. JTR to KGS on Fri, Oct 24), while SKY express offers Cheapest nonstop round-trips from €126 departing on Fri, Oct 17 and returning on Fri, Oct 17.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Santorini to Kos is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Santorini to Kos, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Fri, Oct 24, with one-way flights priced at just €57.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is SKY express.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Kos travel is around April.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Santorini to Kos is May, when demand for travel is lower.
  • After crunching the numbers on our September flight calendar, it's currently cheapest to fly from Santorini to Kos on September 30, 2025 with SKY express, with prices starting at €162.
  • The time difference between Kos and Santorini is 0h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

How to find a cheap flight from Santorini to Kos

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Santorini to Kos. Book your flights at the right time and save more.
1
Being flexible with your dates to get the cheapest Santorini to Kos ticket.
Tap "Date" on flight search bar to scan through the calender for Santorini to Kos airfare over next 6 months in 2025. If you would like to fly in next 3 months, it seems the cheapest date is on Fri, Oct 24 at €57 for one-way flights.
2
Compare cheap Santorini to Kos flight deals from over hundreds of airlines.
Our extensive search allows you to compare prices from over 500 airlines to choose the cheapest flight tickets from Santorini to Kos. The cheapest airline operating is SKY express.
3
Set up a Price Alert
By setting up a Price Alert for your Santorini to Kos route, you can easily track the price of your airline tickets from without manually checking every day.
4
Don't miss cheap Santorini to Kos flight deals and promo codes.
You can always get the latest deals through Trip.com Deals and Promo Codes for cheap flights. If registering a free membership, you can receive more deals for your flights.
5
Book early or wait unitl the last minute.
It's always better to book early. Flight tickets tend to be the cheapest when they are first released, normally about a year before the departure date. So, check online as soon as the flights you want become available. If you miss the cheapest time, you can still find lower-priced tickets as the flight date approaches.
6
Search for flights on the go.
To get the best flight booking experience on the go, download Trip.com and search for cheap flight tickets from Santorini to Kos to get exclusive deals for you.

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