Title:  Cheap Flights from Altenrhein (ACH) to Kos (KGS) - Expedia.ca

  

![Kos featuring a castle and a coastal town](https://images.trvl-media.com/place/1804/71d210e5-8360-4faf-8e0e-489f0841a4ac.jpg?impolicy=fcrop&w=1200&h=500&q=medium)

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# Cheap Flights from Altenrhein (ACH) to Kos (KGS)

-   [Roundtrip](?flightType=roundtrip)
-   [One-way](?flightType=oneway)
-   [Multi-city](?flightType=multicity)

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## Popular airlines from Altenrhein (ACH-St. Gallen - Altenrhein) to Kos (KGS-Kos Island Intl.)

-   ![Air Canada](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg)
    
    Air Canada
    
    [](https://www.expedia.ca/Flights-Search?leg1=from:ach,to:kgs,departure:19/10/2025TANYT&leg2=from:kgs,to:ach,departure:26/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}])
-   ![WestJet](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WS.svg)
    
    WestJet
    
    [](https://www.expedia.ca/Flights-Search?leg1=from:ach,to:kgs,departure:19/10/2025TANYT&leg2=from:kgs,to:ach,departure:26/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WS"}}])
-   ![Flair Airlines](https://a.travel-assets.com/air/airlines/f8_sq.svg)
    
    Flair Airlines
    
    [](https://www.expedia.ca/Flights-Search?leg1=from:ach,to:kgs,departure:19/10/2025TANYT&leg2=from:kgs,to:ach,departure:26/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F8"}}])
-   ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg)
    
    American Airlines
    
    [](https://www.expedia.ca/Flights-Search?leg1=from:ach,to:kgs,departure:19/10/2025TANYT&leg2=from:kgs,to:ach,departure:26/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}])
-   ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg)
    
    United
    
    [](https://www.expedia.ca/Flights-Search?leg1=from:ach,to:kgs,departure:19/10/2025TANYT&leg2=from:kgs,to:ach,departure:26/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}])
-   ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg)
    
    Delta
    
    [](https://www.expedia.ca/Flights-Search?leg1=from:ach,to:kgs,departure:19/10/2025TANYT&leg2=from:kgs,to:ach,departure:26/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}])
-   ![Porter Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_PD.svg)
    
    Porter Airlines
    
    [](https://www.expedia.ca/Flights-Search?leg1=from:ach,to:kgs,departure:19/10/2025TANYT&leg2=from:kgs,to:ach,departure:26/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"PD"}}])

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Flight from Altenrhein to Kos (ACH - KGS) route information

| Origin airport | St. Gallen - Altenrhein |
| --- | --- |
| Destination airport | Kos Island Intl. |
| Distance | 1853 km |

## Thal to Kos Flights

**The easy way to book your flights from Altenrhein to Kos** 

With Expedia, it’s simple to find and book flights to Kos from Altenrhein whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from airlines that cover this route. There are nonstop flights to Kos Island Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Altenrhein to Kos today, tomorrow, or this week.  

**Save dollars with cheap flights from St. Gallen - Altenrhein, ACH to Kos Island Intl., KGS** 

Sort your search results by price to find great deals on your flight from Altenrhein to Kos—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Kos from Altenrhein currently is just rising to .  

Here are more money-saving tips: 

-   Fly in when flight prices are normally at their lowest 
-   Book about a month to 6 weeks before you travel for the best prices to Kos  
-   Avoid peak season and weekends when flights can cost more
-   Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
-   One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

**Reasons to choose Expedia for your flight to Kos from Altenrhein** 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Kos with Expedia today.

## Frequently asked questions

### How much is a flight from ACH to KGS?

> Round-trip tickets from ACH to Kos Airport start from . This price is based on fares listed within the last 7 days on Expedia for flights departing within the next year — book today to avoid missing out. Prices and availability are subject to change. Additional terms apply.

### Do I need to pay a cancellation fee if I cancel my flight from ACH to Kos Airport?

> Each air carrier has its own set of terms and conditions. If you do decide to cancel, follow the easy instructions on our [Customer Service Portal](https://www.expedia.ca/helpcenter).

### How do I find cheap flights from ACH to Kos Island Intl. Airport (KGS) that have flexible change policies?

> Many airlines will allow you to reschedule your flight without charging a fee. All you pay is the cost difference between the two flights. When looking for ACH to Kos Island Intl. Airport (KGS) flights, you'll find a "No change fees" filter for you to tick.

### How far is the flight from ACH to KGS?

> The flight distance between ACH and Kos Airport is 1,850 kilometres. Bring a snack, a drink and a laptop filled with movies. Keep yourself entertained and the hours will zip by.

### Which airlines fly direct from ACH to Kos Island Intl. Airport (KGS)?

> Flying directly between ACH and Kos Airport isn't possible at the moment. However, you'll still be able to find a flight to Kos with at least one stop.

### Are ACH to KGS flight tickets cheaper when they're purchased at the last minute?

> Booking your trip from ACH to Kos Island Intl. Airport (KGS) at the last minute could save you some cash. However, you might miss out on a flight altogether! If you'd rather not take any chances, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to a year in advance. If your preferred carrier hasn't released tickets yet, check back frequently as deals are updated all the time on Expedia.

## Explore a world of travel with Expedia

-   Flights

### Flights

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\*Available to Expedia members.