Many people who travel to Korea have visited Hongik Univ., and you have likely seen those huge, eye-catching LED advertising screens when transferring to the Airport Railroad.
At first glance, many people assume that placing ads on this kind of large-format media must be very expensive, and only major brands can afford it.
But in fact, Airport Railroad Digital Signage (Airport Railroad DS) not only delivers extremely high exposure, but also offers highly flexible placement options—making it one of the most popular media for Korean brand promotions, support ads, and event publicity.
Today, let’s take a closer look at this highly popular advertising media in Korea.
What is Airport Railroad Digital Signage (DS)?
Airport Railroad DS is a large LED digital advertising media installed inside major stations on Korea’s Airport Railroad (AREX).
Key media features include:
- Large, high-resolution LED displays
- Installed along the main transfer routes at interchange stations
- Located in areas with high dwell time and heavy passenger traffic
- Ideal for brand promotion, short-term campaigns, and birthday support ads
As it is installed in key Airport Railroad transfer areas, it can reach a diverse audience including local commuters, students, and overseas travelers.
Basic media information
Coverage| Installed across 7 major Airport Railroad (AREX) stations:
- Seoul Station
- Gongdeok Station
- Hongik Univ. Station
- Digital Media City Station (DMC)
- Gimpo Airport Station
- Gyeyang Station
- Incheon International Airport Terminal 1 Station
Operating hours| Daily 05:00 – 01:00 the next day (up to 20 hours of extended exposure)
Frequency & length| Each ad 20 seconds / approx. 100+ plays per day (you may choose approx. 50 plays per day to reduce budget)
Display format| Played on large LED digital screens (no audio output supported; Hongdae Station No. 5 & 6 media supports audio output)
TOP 2 Most Popular Airport Railroad DS Media
TOP 1｜Hongik Univ. Airport Railroad Digital Signage
Hongik Univ. Airport Railroad DS is currently one of the most inquired-about and popular media options.
The media is located inside the Airport Railroad transfer passage at Hongik Univ. Station, connecting:
- Subway Line 2
- Airport Railroad (AREX)
- Gyeongui–Jungang Line
Large numbers of commuters, students, young audiences, and overseas travelers pass through every day.
There are a total of 6 ad placements across the Hongdae DS area.
Placements No. 1–4 can be purchased individually, while No. 5 and No. 6 must be purchased together.
Screen size is also one of its biggest highlights.
The maximum media length reaches 24 meters. Made up of multiple large LED displays, it effectively boosts visual impact and brand recall.
Whether for support ads or brand/event exposure, it delivers a highly impressive display effect.
TOP 2｜Incheon International Airport Airport Railroad Digital Signage
Incheon International Airport is Korea’s most important international aviation hub, handling the vast majority of the country’s international passenger traffic.
As inbound and outbound travel continues to increase, Airport Railroad ridership has also grown steadily.
This media is installed around key escalators and main traffic routes, making it easy for travelers to notice ad content while moving—ideal for:
- International brand exposure
- Tourism promotion
- Event publicity
- Global fan support campaigns
Why is Airport Railroad DS so popular?
- Placement available from as short as 7 days
Compared with many out-of-home media that require long-term bookings, Airport Railroad DS can be placed for as little as 7 days.
This makes it especially suitable for short-term promotion needs such as birthday support ads, pop-up events, and new product launches.
- Large LEDs enhance ad presence
Large screens effectively increase visual impact.
Even in high-traffic environments, they still capture the attention of passing travelers and commuters.
- Supports split-screen creative
Some media supports split-screen playback.
In addition to standard full-screen display, you can also present different content via split layouts, increasing creative flexibility and attention-grabbing impact.
- Located along Seoul’s core high-traffic routes
Whether it’s Hongik Univ., Seoul Station, or Incheon Airport, all are key transportation hubs in Korea.
Ads can reach different audiences such as local residents, commuters, university students, and overseas travelers, delivering stable and continuous exposure.
How can you place a Korea Ad campaign from overseas?
If you want your idol or brand to shine on the streets of Seoul, you do not need to worry about language barriers, not having a Korean bank account, or complicated approval procedures.
The Yonniverse team provides a one-stop agency service:
- Recommend the most suitable stations based on your budget and needs
- Provide end-to-end support for creative approval and schedule coordination with Korean media owners
- Provide on-site photo updates after the ad goes live
