Jeju to Seoul Gimpo Becomes 2025’s Busiest Route — Korean Air & Asiana Take Over, Boosting Tourism and Hotel Demand in Seoul and Jeju!

Published on December 22, 2025

Jeju to Seoul Gimpo becomes 2025’s busiest route — Korean Air & Asiana take over, boosting tourism and hotel demand in Seoul and Jeju! In an exciting development for South Korea’s travel landscape, the Jeju (CJU) to Seoul Gimpo (GMP) flight corridor has emerged as the world’s busiest route in 2025, with a staggering 14.4 million seats scheduled for the year. This monumental feat underscores the growing importance of domestic air travel in the Asia-Pacific region. Korean Air and Asiana Airlines, two of South Korea’s most influential carriers, have been pivotal in driving this surge, offering frequent flights and high-quality services that have made this route an essential link between the capital city of Seoul and the beautiful island of Jeju. This significant uptick in air traffic is not just reshaping the aviation sector but is also catalyzing a major boom in South Korea’s tourism and hospitality industries, with hotels in both Seoul and Jeju seeing a marked increase in bookings. The easy accessibility between these two key destinations is opening up a world of possibilities for travelers looking to experience the unique cultural, historical, and natural wonders that South Korea has to offer.

Jeju to Seoul Gimpo Becomes 2025’s Busiest Route — Korean Air & Asiana Take Over, Boosting Tourism and Hotel Demand in Seoul and Jeju!

In 2025, the Jeju (CJU) to Seoul Gimpo (GMP) route has firmly claimed the title of the world’s busiest flight route, a monumental achievement that underscores the robust growth of domestic air travel in South Korea. With approximately 14.4 million seats scheduled throughout the year, this highly competitive and essential corridor is not only a triumph for South Korea’s aviation industry but also a game-changer for the country’s tourism and hospitality sectors. Airlines like Korean Air and Asiana, two of the leading carriers in the region, have dominated this route, which has become a critical artery connecting South Korea’s capital with its renowned island destination, Jeju.

As the route continues to see unprecedented passenger demand, the ripple effects extend far beyond the skies. Seoul and Jeju, both major tourism hubs, are experiencing a surge in hotel bookings, as travelers flock to explore the cultural, natural, and modern attractions of both destinations. For tourists planning to visit South Korea in 2025, understanding the dynamics of this route and how it affects air travel, accommodation, and tourism will be crucial for making the most of their trip.

Korean Air and Asiana: Soaring to New Heights in 2025

Korean Air and Asiana, both flagship carriers in South Korea, are leading the charge on the Jeju–Seoul Gimpo route, providing travelers with reliable, efficient, and frequent services. As two of the largest carriers in Asia, these airlines have adapted to the ever-increasing demand by offering more flights and larger aircraft. Their role in the region’s air travel landscape is crucial, as both airlines contribute significantly to the robust capacity on this route.

Korean Air, with its extensive fleet and premium services, has become synonymous with high-quality air travel between Jeju and Seoul. Asiana, which merged with Korean Air in late 2024, brings additional capacity and benefits to the route, enhancing overall service levels and operational efficiency. Both carriers offer multiple daily flights, giving travelers a variety of options, whether for business or leisure. The increased flight frequency on this route ensures that visitors can travel between Seoul and Jeju with ease, making the islands more accessible than ever before.

For tourists, flying with Korean Air or Asiana offers more than just a way to get from point A to point B. With excellent in-flight service, comfortable seating options, and competitive pricing, these airlines make the journey enjoyable and stress-free. Travelers can book direct flights from Seoul to Jeju, with flight durations typically around one hour. These quick and frequent services make Jeju an attractive destination for short trips, whether for a weekend getaway or a longer stay.

Boosting Tourism and Hotel Demand in Seoul and Jeju

The surge in airline traffic between Jeju and Seoul is having a profound impact on both destinations’ hospitality industries. As the busiest flight route in the world in 2025, it has dramatically increased the flow of tourists to these two regions. With millions of seats filled, the local economies in both Jeju and Seoul are seeing substantial benefits. This increase in tourism demand is filling hotel rooms, boosting local businesses, and driving the growth of the hospitality sector.

Seoul, the dynamic capital of South Korea, has always been a popular destination for travelers due to its mix of modern culture and ancient history. From the breathtaking Gyeongbokgung Palace to the bustling shopping streets of Myeongdong and Gangnam, there’s something for everyone in this vibrant metropolis. The increased flight availability from Jeju to Seoul is making it easier for tourists to explore these attractions and enjoy the cosmopolitan offerings of the city.

For those planning to visit Jeju, the island is renowned for its natural beauty, including stunning beaches, volcanic craters, and scenic hiking trails. Jeju’s popularity as a tourist destination has been on the rise, thanks in part to the increased accessibility provided by the Jeju–Seoul Gimpo route. Travelers can now easily hop on a flight and explore the island’s picturesque landscapes, including the famous Hallasan Mountain and the UNESCO World Heritage-listed Jeju Volcanic Island and Lava Tubes.

With the growing number of tourists flying between these two destinations, hotels are in high demand. Seoul’s luxurious hotels, such as the Four Seasons Hotel Seoul, the Grand Hyatt Seoul, and the Park Hyatt Seoul, are experiencing a boom in bookings. These establishments cater to international tourists looking for top-tier accommodations and a full range of amenities. The city’s vibrant hotel scene also includes a range of mid-tier and budget options, ensuring there’s something for every type of traveler.

In Jeju, the hospitality industry is also reaping the rewards of increased travel. Hotels, resorts, and guesthouses are reporting higher occupancy rates, especially in popular tourist areas like Jeju City and Seogwipo. Luxury resorts such as the Jeju Shinhwa World Resort and the Lotte Hotel Jeju offer world-class amenities, while more affordable accommodations are available for those looking for a simpler stay.

Flight Details for Travelers: What You Need to Know

For tourists planning to visit South Korea, understanding the flight details of the Jeju–Seoul Gimpo route is essential. Flights on this route are frequent and operated by a number of airlines, with Korean Air and Asiana leading the pack. Other carriers such as Jeju Air and T’way Air also offer competitive services, providing travelers with a variety of choices in terms of schedules and pricing.

Flights typically operate throughout the day, with the first flights departing early in the morning and the last flights in the late evening. This flexibility allows visitors to maximize their time in either Seoul or Jeju. The flight duration between the two cities is approximately one hour, making it a quick and convenient option for travelers.

For those booking flights between Seoul and Jeju, it’s important to note that flight prices can fluctuate depending on the season. Peak tourist seasons, such as the summer months and the Korean holiday periods, tend to see higher prices and greater demand. To secure the best deals, travelers are advised to book flights in advance, especially during the peak seasons. Additionally, many airlines offer special promotions and discounts for early bookings, which can make travel more affordable.

Travel Tips for Tourists Visiting Seoul and Jeju

1. Book Flights Early: With the Jeju–Seoul Gimpo route being the busiest in 2025, it’s crucial to book your flights in advance. This ensures you get the best pricing and preferred travel times, especially during peak tourist seasons.
2. Consider Connecting Flights: If you’re traveling from international destinations to Seoul, look for connecting flights that can easily take you from Incheon International Airport (ICN) to Gimpo Airport (GMP) for your flight to Jeju. The transit time between the two airports is short, making connections smooth and hassle-free.
3. Explore Both Cities: Seoul offers a rich mix of modern attractions and traditional experiences, while Jeju provides stunning natural scenery and outdoor adventures. Take the time to explore both cities for a complete South Korean experience.
4. Stay in Central Locations: When staying in Seoul, opt for hotels in central areas like Gangnam, Myeongdong, or Insadong. These locations offer easy access to shopping, dining, and cultural experiences. In Jeju, stay near popular attractions such as Seogwipo or Jeju City to make the most of your trip.
5. Pack for the Weather: South Korea’s weather can vary greatly depending on the season. In summer, temperatures can soar, so be sure to pack light, breathable clothing. In winter, temperatures can drop significantly, so bring layers and warm clothing.
6. Use Public Transportation: South Korea’s public transportation system is highly efficient, especially in Seoul. The subway and buses are affordable and easy to navigate, making them a convenient way to get around the city. In Jeju, consider renting a car if you plan to explore the island’s natural attractions.
7. Cultural Etiquette: South Korea has a rich cultural heritage, and understanding basic etiquette can enhance your travel experience. Be respectful in temples and other cultural sites, and remember that bowing is a common form of greeting.

Looking Ahead: The Future of South Korea’s Aviation and Hospitality Sectors

As the Jeju to Seoul Gimpo route continues to lead the way in 2025, South Korea’s aviation industry is expected to see even more growth in the years ahead. With increasing competition among carriers, travelers will benefit from more choices, better services, and greater affordability. Meanwhile, the tourism boom generated by this route will continue to fuel growth in the hospitality sector, benefiting hotels and other tourism-related businesses in both Seoul and Jeju.

For those looking to experience the best of South Korea, 2025 promises to be a year of seamless travel, luxurious accommodations, and unforgettable experiences. Whether you’re exploring the vibrant streets of Seoul or hiking the scenic trails of Jeju, the ease of travel between these two destinations will make it easier than ever to experience the best that South Korea has to offer.

Jeju to Seoul Gimpo becomes 2025’s busiest route — Korean Air & Asiana dominate, fueling a massive tourism boom! Discover how this record-breaking route is driving hotel demand and transforming South Korea’s travel scene like never before!

Wrapping Up

The Jeju to Seoul Gimpo route’s dominance in 2025 is not just a victory for airlines like Korean Air and Asiana but also a testament to the resilience and growth of South Korea’s tourism and hospitality sectors. With the increasing number of tourists flocking to these destinations, both Seoul and Jeju are gearing up for an exciting year of travel, exploration, and unforgettable experiences. Whether you’re a first-time visitor or a seasoned traveler, the ease of access between these two iconic locations makes South Korea an unmissable destination in 2025.