Title: $259 Cheap Flights to Sydkoster - Expedia.com ![Panoramic view of the harbor, burgundy wooden houses, the landscapes and the coastline of the Koster,Sydkoster and Nordkoster islands. Kosterhavets National Park archipelago. Stromstad Bohuslan Sweden](https://images.trvl-media.com/place/6271810/3a073871-1783-473b-853f-9df4cd3ec96a.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/6271810/3a073871-1783-473b-853f-9df4cd3ec96a.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # $259 Cheap Flights to Sydkoster [View $259 flight on Thu, Mar 5, 2026](https://expedia.com/Flights-Search?trip=oneway&leg1=from:BMA,to:THN,departure:3/5/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:258.20&airProductToken=AQopCicI12QSAzU0MxiBAyDzaSiI6IYDMMTohgM4VEAAWAFyB1RWTElHSFQSCggBEAEYASoCVzIYASIECAEQASgCKAMoBDAB) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travelers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only [Sydkoster Travel Guide](https://expedia.com/Sydkoster.dx6271810)[Hotels in Sydkoster](https://expedia.com/Sydkoster-Hotels.d6271810.Travel-Guide-Hotels)[Car Rentals in Sydkoster](https://expedia.com/Car-Rentals-In-Sydkoster.d6271810.Car-Rental-Guide)[Sydkoster Vacation Packages](https://expedia.com/Sydkoster.d6271810.Destination-Travel-Guides) ## Popular airlines to Sydkoster - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_SK.svg) SAS [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Sydkoster, Västra Götaland County, Sweden,departure:2/19/2026TANYT&leg2=from:Sydkoster, Västra Götaland County, Sweden,to:CMH,departure:2/26/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"SK"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_KL.svg) KLM [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Sydkoster, Västra Götaland County, Sweden,departure:2/19/2026TANYT&leg2=from:Sydkoster, Västra Götaland County, Sweden,to:CMH,departure:2/26/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"KL"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LH.svg) Lufthansa [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Sydkoster, Västra Götaland County, Sweden,departure:2/19/2026TANYT&leg2=from:Sydkoster, Västra Götaland County, Sweden,to:CMH,departure:2/26/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LH"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_BA.svg) British Airways [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Sydkoster, Västra Götaland County, Sweden,departure:2/19/2026TANYT&leg2=from:Sydkoster, Västra Götaland County, Sweden,to:CMH,departure:2/26/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AF.svg) Air France [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Sydkoster, Västra Götaland County, Sweden,departure:2/19/2026TANYT&leg2=from:Sydkoster, Västra Götaland County, Sweden,to:CMH,departure:2/26/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AF"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AY.svg) Finnair [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Sydkoster, Västra Götaland County, Sweden,departure:2/19/2026TANYT&leg2=from:Sydkoster, Västra Götaland County, Sweden,to:CMH,departure:2/26/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AY"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LX.svg) Swiss International Air Lines [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Sydkoster, Västra Götaland County, Sweden,departure:2/19/2026TANYT&leg2=from:Sydkoster, Västra Götaland County, Sweden,to:CMH,departure:2/26/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LX"}}]) - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our OneKeyCash [Learn about One Key](https://www.expedia.com/welcome-one-key) ## How much is the cheapest flight to Sydkoster? Prices were available within the past 7 days and start at $259 for one-way flights and $339 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![FlexFlight](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/w2.gif) Thu, Mar 19 - Thu, Mar 26 BMA Stockholm THN Trollhattan $339 Roundtrip found 18 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BMA,to:THN,departure:3/19/2026TANYT&leg2=from:THN,to:BMA,departure:3/26/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:338.60&airProductToken=AQopCicI12QSAzU0MxiBAyDzaSjIhYgDMISGiAM4V0AAWAFyB1dWTElHSFQKKQonCNdkEgM1NTYY82kggQMo-NSIAzC01YgDOFdAAFgBcgdXVkxJR0hUEgoIARABGAEqAlcyGAEiBAgBEAEoAigDKAQwAQ) ![FlexFlight](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/w2.gif) Thu, Mar 12 - Thu, Mar 19 BMA Stockholm THN Trollhattan $458 Roundtrip found 11 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BMA,to:THN,departure:3/12/2026TANYT&leg2=from:THN,to:BMA,departure:3/19/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:457.30&airProductToken=AQopCicI12QSAzU0MxiBAyDzaSjotocDMKS3hwM4SEAAWAFyB0hWTElHSFQKKQonCNdkEgM1NTYY82kggQMomIaIAzDUhogDOFdAAFgBcgdXVkxJR0hUEgoIARABGAEqAlcyGAEiBAgBEAEoAigDKAQwAQ) ![FlexFlight](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/w2.gif) Mon, Mar 16 - Mon, Mar 23 BMA Stockholm THN Trollhattan $506 Roundtrip found 3 days ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BMA,to:THN,departure:3/16/2026TANYT&leg2=from:THN,to:BMA,departure:3/23/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:505.50&airProductToken=AQopCicI12QSAzU1MRiBAyDzaSjn4IcDMKPhhwM4V0AAWAFyB1dWTElHSFQKKAomCNdkEgM1NTAY82kggQMo966IAzCzr4gDOFNAAFgBcgZTVkZMRVgSCggBEAEYASoCVzIYASIECAEQASgCKAMoBDAB) ![FlexFlight](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/w2.gif) Thu, Mar 19 - Thu, Mar 26 BMA Stockholm THN Trollhattan $567 Roundtrip found 18 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BMA,to:THN,departure:3/19/2026TANYT&leg2=from:THN,to:BMA,departure:3/26/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:566.50&airProductToken=AQooCiYI12QSAzU1NxiBAyDzaSjohogDMKSHiAM4WUAAWAFyBllWRkxFWAopCicI12QSAzU1MBjzaSCBAyjm0IgDMKLRiAM4V0AAWAFyB1dWTElHSFQSCggBEAEYASoCVzIYASIECAEQASgCKAMoBDAB) ![FlexFlight](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/w2.gif) Thu, Mar 12 - Thu, Mar 19 BMA Stockholm THN Trollhattan $568 Roundtrip found 11 hours ago [](https://expedia.com/Flights-Search?trip=roundtrip&leg1=from:BMA,to:THN,departure:3/12/2026TANYT&leg2=from:THN,to:BMA,departure:3/19/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:567.50&airProductToken=AQooCiYI12QSAzU1NxiBAyDzaSiIuIcDMMS4hwM4WUAAWAFyBllWRkxFWAopCicI12QSAzU1NhjzaSCBAyiYhogDMNSGiAM4V0AAWAFyB1dWTElHSFQSCggBEAEYASoCVzIYASIECAEQASgCKAMoBDAB) ## Tips to find the cheapest flights to Sydkoster **The cheapest day to fly** Get started finding a cheap flight to Sydkoster on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you. **The cheapest month to fly** March is the cheapest month to fly to Sydkoster. This coincides with the low season when fewer people travel. Whichever month you travel in, though, be sure to book at least a month in advance if you want to score cheap tickets to Sydkoster. ARC's data shows that domestic flights booked 28 days or more before departure are typically 24% cheaper than those booked last minute. **The most affordable time to book a flight** Typically, a Sunday can be the cheapest time to book a flight to Sydkoster, according to ARC’s data. On average, you could save between 6% and 13% by booking on a Sunday instead of a Friday, which is the most expensive day to make a reservation. **The cheapest round-trip tickets to Sydkoster** The lowest price for round-trip flights to Sydkoster in 2026 starts from from $339, while one-way tickets start from from $259\. Expedia's effective search tool is one of the best ways to find a budget airfare. Simply enter your dates, and within seconds, it'll show you a vast selection of the cheapest flights to Sydkoster. If you have a preferred departure time or airline, you can use the handy filters to customize your search. **The cheapest airlines flying to Sydkoster** FlexFlight are just some of the airlines that can typically offer cheap tickets to Sydkoster. You can find their most affordable flights by using the “airline” search filter and then sorting prices from low to high. As a trusted partner of the world's leading airlines, Expedia offers you some of the best airfare deals to Sydkoster and countless more destinations worldwide. **The most affordable airports to fly into** To view the cheapest airports to fly into for Sydkoster, simply order your search results from lowest to highest price. Expedia's search tool compares flight prices for all airports close to your destination, so you don't have to manually search them one by one to find the cheapest flight to Sydkoster. If you have a preferred place to fly into, take advantage of the “arrival airport” filter to narrow down your search on Expedia. **Save with a package** With Expedia's amazing [package deals](https://www.expedia.com/package-deals), you could save hundreds of dollars by booking your Sydkoster plane tickets together with your accommodations, car rental, or activities. Just select the search wizard's “package” option to view some of the cheapest deals. Look out for the green savings label to see how much you're saving. **Date flexibility for the cheapest flights to Sydkoster** If you can be flexible with your travel dates, it's a good idea to broaden your search by comparing prices on different days. This will open up more options, meaning you could uncover a less expensive flight to Sydkoster. **Stopover savings** The cheapest tickets to Sydkoster are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to Sydkoster. While the overall travel time might be longer than a non-stop flight, you may decide it's worth it for the money saved. **Get Expedia's Price Drop Protection** Price Drop Protection means that if your flight gets cheaper after booking, you'll be credited the difference\*. This gives you peace of mind that you're getting one of the cheapest flights to Sydkoster for your chosen departure. Expedia's Price Drop Protection is available for a small fee but is free to One Key Gold and Platinum tier members. \*Terms apply. **Use our Price Tracking feature** Expedia's Price Tracking feature is another great tool that removes the guesswork from finding cheap flights to Sydkoster. Simply download the free Expedia app to your smart device and activate Sydkoster flight price alerts for your travel dates. There's even a price predictor tool that uses historical data to indicate the best time to book, giving you peace of mind that you'll nab the lowest prices. **Book with Expedia** As well as Price Drop Protection and Price Tracking, Expedia's close partnership with a vast selection of the world's leading airlines means you're sure to find cheap flights to Sydkoster. Plus, the One Key rewards program lets you earn real cash rewards on most bookings that you can use to save money on future trips. Best of all, it's free to join, and members often unlock exclusive discounts, too. Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023\. The percentages you see are averages. ## Frequently asked questions ### Where can I learn more about changing or canceling my flight to Sydkoster? ### How do I find cheap flights to Sydkoster that have flexible change policies? ### What is the name of Sydkoster's airport? ### How many airlines fly to Sydkoster? ### How many nonstop flights are there to Sydkoster? ### Where are the most popular flights to Sydkoster departing from? ### How long is the flight to Sydkoster Airport? ### How to book the cheapest flight to Sydkoster? ### How to survive the flight to Sydkoster? > - First and foremost, pack in your passport, travel documents, wallet and medications. Next, you'll want some entertainment to while away the time. A thrilling novel and a tablet filled with your favorite shows are some terrific options. If you hope to catch more than just forty winks, a quality neck pillow and a pair of noise-canceling headphones will also come in handy. Finally, make room for a toothbrush and some cleansing wipes to ensure you arrive feeling fresh as a daisy. > > > Do not pack the following items in your hand luggage: > > > - Pack all your full-sized bottles of shampoo and hairspray in your checked luggage. Any liquids or gels in your carry-on suitcase larger than 3.4 ounces (100 milliliters) will be confiscated by security. Sharp or pointed objects, like your beloved Swiss Army knife, and dangerous goods which are flammable or explosive, such as flares, chemicals agents and fireworks, are also not allowed. > > > What to wear on a flight: > > > - Comfort should be your main priority when deciding what to wear during your flight. Consider your choice of footwear with care too, as swollen feet and ankles are quite common. Slightly roomy, flat shoes are always a sensible way to go. > - It's likely you've heard about DVT (deep vein thrombosis), a blood clot condition caused by long periods of inactivity. There are many ways to reduce your risk. Wear a good-quality pair of compression tights or socks, drink plenty of water and remember to keep your legs and feet moving. Do a lap or two of the cabin or try out some simple stretches in your seat. ### How to get through airport security fast when flying to Sydkoster? > - Security personnel first need to check that you have a valid ID and travel documents before anything else. Have them ready for inspection. > - The X-ray machine comes next. Remove anything on you that is likely to set off the scanner's alarm. This includes items like headphones or earphones, as well as heavy jackets or coats. They'll need to be placed on the conveyor belt for screening. > - Your electronic gadgets like laptops and phones will also need to go on a tray for inspection. Don't worry, you'll be back online soon enough. > - Any liquids or gels, such as perfume or hairspray, that you want to take on board must be no larger than 3.4 ounces (100 milliliters). They must also all fit inside a quart-size (one liter), zip-lock bag. > - There's a possibility that you'll need to remove your shoes for scanning, so wearing lightweight sneakers is always a clever idea. > - Sharp or pointed items are prohibited in the cabin. They'll be seized at security, so pack them safely away in your checked luggage. \*Flight schedules are subject to change. __Flights to Sydkoster information__ | Destination airport | Vanersborg | | ----------------------------- | ----------- | | Destination airport IATA code | THN | | Destination city name | Trollhattan | | Roundtrip price | $339 | \*Available to One Key members.