Title: Cheap Flights to Koso-ri - Expedia.com ![Default HTG hotel image](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights to Koso-ri - [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 [Koso-ri Travel Guide](https://expedia.com/Koso-Ri.dx3000733820)[Hotels in Koso-ri](https://expedia.com/Koso-Ri-Hotels.d3000733820.Travel-Guide-Hotels)[Car Rentals in Koso-ri](https://expedia.com/Car-Rentals-In-Koso-Ri.d3000733820.Car-Rental-Guide)[Koso-ri Vacation Packages](https://expedia.com/Koso-Ri.d3000733820.Destination-Travel-Guides) ## Popular airlines - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Koso-ri, Sinan, South Jeolla, South Korea,departure:2/26/2026TANYT&leg2=from:Koso-ri, Sinan, South Jeolla, South Korea,to:CMH,departure:3/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Koso-ri, Sinan, South Jeolla, South Korea,departure:2/26/2026TANYT&leg2=from:Koso-ri, Sinan, South Jeolla, South Korea,to:CMH,departure:3/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Koso-ri, Sinan, South Jeolla, South Korea,departure:2/26/2026TANYT&leg2=from:Koso-ri, Sinan, South Jeolla, South Korea,to:CMH,departure:3/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Koso-ri, Sinan, South Jeolla, South Korea,departure:2/26/2026TANYT&leg2=from:Koso-ri, Sinan, South Jeolla, South Korea,to:CMH,departure:3/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Koso-ri, Sinan, South Jeolla, South Korea,departure:2/26/2026TANYT&leg2=from:Koso-ri, Sinan, South Jeolla, South Korea,to:CMH,departure:3/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_B6.svg) JetBlue Airways [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Koso-ri, Sinan, South Jeolla, South Korea,departure:2/26/2026TANYT&leg2=from:Koso-ri, Sinan, South Jeolla, South Korea,to:CMH,departure:3/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.com/Flights-Search?leg1=from:CMH,to:Koso-ri, Sinan, South Jeolla, South Korea,departure:2/26/2026TANYT&leg2=from:Koso-ri, Sinan, South Jeolla, South Korea,to:CMH,departure:3/5/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![](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) ![](https://forever.travel-assets.com/flex/flexmanager/images/2026/02/06/expedia-sale-2026-desktop-us-ca.jpg?impolicy=fcrop&w=1400&h=600&q=mediumHigh) ## The Annual Vacation Sale Members save up to 40% on hotels and homes. Plan this year’s big trip and save. [Book now](https://expedia.com/deals?rfrr=FTG_SPRING_PROMO_) ## Tips to find the cheapest flights to Koso-ri **The cheapest day to fly** Get started finding a cheap flight to Koso-ri 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** is the cheapest month to fly to Koso-ri. 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 Koso-ri. 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 Koso-ri, 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 Koso-ri** The lowest price for round-trip flights to Koso-ri in 2026 starts from , while one-way tickets start from . 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 Koso-ri. If you have a preferred departure time or airline, you can use the handy filters to customize your search. **The cheapest airlines flying to Koso-ri** are just some of the airlines that can typically offer cheap tickets to Koso-ri. 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 Koso-ri and countless more destinations worldwide. **The most affordable airports to fly into** To view the cheapest airports to fly into for Koso-ri, 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 Koso-ri. 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 Koso-ri 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 Koso-ri** 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 Koso-ri. **Stopover savings** The cheapest tickets to Koso-ri are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to Koso-ri. 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 Koso-ri 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 Koso-ri. Simply download the free Expedia app to your smart device and activate Koso-ri 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 Koso-ri. 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 ### What month is the cheapest to fly to Sinan? ### Which US cities have the cheapest flights to Sinan? > - San Francisco (SFO) > - Los Angeles (LAX) > - Miami (MIA) > > > with fares often starting from $549. ### How to find a cheap flight to Sinan? ### Which airlines fly to Sinan? > - Asiana Airlines > - Jeju Air > - Jeju Air with Bag > - Korean Air > - T'way Air > - T'way Air with baggage ### Where do you fly into Sinan? > - The closest major airport is Jeju (CJU-Jeju Intl.), about 96 miles from the city center, which is a hub for Korean Air, Asiana Airlines, and Jeju Air, with other airlines like T'way Air with baggage, Jeju Air with Bag also operating here. > - Gwangju (KWJ-Gwangju Intl.) is another option, about 67 miles away, serving as a hub for Asiana Airlines, Korean Air, and T'way Air with baggage, with Jeju Air, Jeju Air with Bag also operating here. > - Gunsan (KUV), about 93 miles away, serving as a hub for JIN AIR. ### What is the cheapest airport to fly to in Sinan? ### Which budget airlines fly to Sinan? > - T'way Air with baggage: serves Gwangju (KWJ), Jeju (CJU) > - Jeju Air with Bag: serves Gwangju (KWJ), Jeju (CJU) > - HK Express: flies to Jeju (CJU) > - Jeju Air: flies to Jeju (CJU) > - T'Way Air: flies to Jeju (CJU) > - Scoot: flies to Jeju (CJU) > - Spring Airlines: flies to Jeju (CJU) > - Kingfisher Airlines: flies to Jeju (CJU) > - Tigerair Taiwan: flies to Jeju (CJU) ### What is the best month to visit Sinan? ### How far in advance should I book a flight to Sinan? ### What day of the week is cheapest day to buy a plane ticket to Sinan? ### What is the most expensive month to fly to Sinan? ### How can I track flight prices to Sinan? ### How to get a cheap last-minute flight to Sinan? ### Can I earn miles booking a flight to Sinan with Expedia? ### Can I save money by booking a Sinan trip package? ### Can I change or cancel my flight to Sinan? \*Flight schedules are subject to change. __Flights to Koso-ri information__ | Destination airport | Koso-ri | | ----------------------------- | ------- | | Destination airport IATA code | MPK | ## Explore a world of travel with Expedia - 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