Seoul to Ulsan (GMP–USN) — Airlines, Schedules & Connections

GMP Airport Page →
197 mi airlines charter/private 35/wk
On-time Some delays Frequent delays
Flight Schedule 10 flights Verified 1m ago
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop
✓
→
KL4246cs
KL KLM
223
7:20 AM
KST TD
8:20 AM
KST
1h
—
M T W T F S S
Prices
✓
→
KE1843+1
KE Korean
223
7:20 AM
KST TD
8:20 AM
KST
1h
49%
M T W T F S S
Prices
✓
→
LJ655+1
LJ Jin
738
1:25 PM
KST TD
2:25 PM
KST
1h
50%
M T W T F S S
Prices
✓
→
KE5149cs
KE Korean
738
1:25 PM
KST TD
2:25 PM
KST
1h
49%
M T W T F S S
Prices
✓
→
KE1847+1
KE Korean
223
6:55 PM
KST TD
7:55 PM
KST
1h
49%
M T W T F S S
Prices
✓
←
KL4248cs
KL KLM
223
9:00 AM
KST
10:00 AM
KST
1h
—
M T W T F S S
Prices
✓
←
KE1844+1
KE Korean
223
9:00 AM
KST
10:00 AM
KST
1h
—
M T W T F S S
Prices
✓
←
KE5150cs
KE Korean
738
3:05 PM
KST TD
4:05 PM
KST
1h
—
M T W T F S S
Prices
✓
←
LJ656+1
LJ Jin
738
3:05 PM
KST
4:05 PM
KST
1h
—
M T W T F S S
Prices
✓
←
KE1848+1
KE Korean
223
8:35 PM
KST
9:35 PM
KST
1h
—
M T W T F S S
Prices

No flights match your filters.

No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.

✦ 1-Stop connections via 1 hub
CJU Jeju City 3h 5m 7CBXKE → BXKELJ Jeju City (CJU) to Ulsan flights
✦ 1-STOP More options, longer trips
✧ 2-STOP Loading... Reach the hardest destinations
Seoul to Ulsan
2 carriers, 35 flights/week nonstop.
2 Airlines 197 mi 1h nonstop

GMP–USN is served by 2 airlines with nonstop service. Korean Air and Jin Air lead the route. The flight covers 197 miles in approximately 1h. Beyond nonstop, 1-stop connecting options are also available.

Also explore GMP Routes USN Routes GMP Live Flights USN Live Flights
All flights from Ulsan (USN) Ulsan to Seoul flights
Carriers on this route

Airline Landscape

All carriers operating nonstop GMP–USN service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
KE Korean Air Also: KL 21 223, 738 1h – SkyTeam KL
LJ Jin Air 7 738 1h – – –
Aircraft on this route
223 Airbus A220-300 – KE, KL
738 Boeing 737-800 – KE, LJ
Alliance coverage
SkyTeam: KE (21 flights/wk, 75%)
Unaffiliated: LJ (7 flights/wk, 25%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.
Schedule

Weekly Schedule Pattern

Nonstop flight frequency by day of week, GMP to USN direction.
Mon
5
flights
Tue
5
flights
Wed
5
flights
Thu
5
flights
Fri
5
flights
Sat
5
flights
Sun
5
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
5
Nonstop flights
35
Outbound / wk
35
Return / wk
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for GMP to USN.
1-STOP
One-Stop Connections
1
Hubs
~3h
Fastest
~3h
Longest
CJU ~3h 5m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
9
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
0h
Ulsan is 0 hours the same as Seoul.
GMP: KST · USN: KST

When it's 6:00 PM in Seoul, it's 6:00 PM in Ulsan.
Distance & Flight Time
197 mi / 316 km
Nonstop flight time is approximately 1h 0m gate to gate.
Facts

GMP–USN Quick Facts

Key statistics for the Seoul to Ulsan route.
Route details
Distance197 mi / 316 km
Flight time1h
Time difference0 hours
Airlines (nonstop)2
Weekly flights35 out / 35 return
1-stop connectionsAvailable
Origin: GMP
Full nameGimpo International Airport
IATA / ICAOGMP / RKSS
TimezoneAsia/Seoul
Passengers/yr25.0M
Elevation59 ft / 18 m
Destination: USN
Full nameUlsan Airport
IATA / ICAOUSN / RKPU
TimezoneAsia/Seoul
Elevation45 ft / 14 m
FAQ

Frequently Asked Questions

Common questions about GMP to USN flights.
Nonstop flights from Gimpo International Airport to Ulsan Airport take about 1h gate to gate. The route covers 197 miles.
2 airlines operate flights from GMP to USN: Korean Air and Jin Air.
This route has frequent daily service. Check the schedule above for departure days and times in each direction.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Jeju.
Yes, return flights from USN to GMP are available. Use the direction toggle at the top to view the return schedule.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.
Flight time is about 55 minutes to 1 hour on the 340 km sector. The route flies southeast from Seoul across the Korean peninsula to the southeast coast. It is one of South Korea's core domestic trunk routes.
Korean Air operates this route. Frequency is typically 3 to 5 daily departures. Equipment is usually 737 or A220 aircraft. Gimpo handles most of Seoul's domestic flights, keeping this service separate from Incheon's international focus.
The KTX high-speed train runs from Seoul Station to Ulsan (Tongdosa) station in about 2 hours 10 minutes. KTX Ulsan station is 20 km west of the city centre, so add 30 minutes for the bus or taxi into town. Door-to-door, the train and flight are comparable at about 2.5 to 3 hours total. The train runs more frequently and has no security screening overhead.
Ulsan Airport (USN) is a small single-runway domestic airport. The terminal is compact with limited food options. It sits about 10 km south of the city centre. Taxis and airport buses connect to downtown Ulsan and the industrial district. Parking is free and readily available.
Ulsan is South Korea's industrial powerhouse. Hyundai Motor, Hyundai Heavy Industries, and SK Energy all have their main production facilities here. It is one of the highest per-capita income cities in the country. Business travel dominates the GMP-USN route, with weekday frequencies reflecting the corporate commuter market.

Seoul Gimpo to Ulsan: Capital to Industrial Hub

Seoul Gimpo to Ulsan covers 340 km in about 55 minutes. Korean Air operates 3 to 5 daily flights on the route using narrowbody jets. Gimpo Airport handles Seoul's domestic network and sits closer to the city centre than Incheon, making it the preferred departure point for domestic business travellers.

Ulsan is South Korea's manufacturing capital, home to Hyundai Motor's main assembly plants, Hyundai Heavy Industries' shipyard, and major petrochemical facilities. This makes GMP-USN a corporate commuter route with heaviest loads on Monday mornings and Friday evenings. The KTX high-speed train offers a competitive alternative at 2 hours 10 minutes, but the KTX station sits 20 km outside Ulsan proper. Ulsan Airport is a compact domestic facility with quick turnaround times and taxi access to the city and industrial zones.