Saga to Seoul (HSG–ICN) — Airlines, Schedules & Connections

HSG Airport Page →
369 mi airlines 4/wk
On-time Some delays Frequent delays
Flight Schedule 2 flights Verified 5h ago
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  Flight Airline AC Dep Arr Dur OTP Sched  
TW286
TW T'way
738
10:50 AM
JST TMAIN
12:20 PM
KST
1h 30m
M T W T F S S
Prices
TW285
TW T'way
738
8:25 AM
KST T1
9:50 AM
JST
1h 25m
M T W T F S S
Prices

No flights match your filters.

No nonstop flights on this route. connecting options below.

1-STOP
2-STOP Loading...
Saga to Seoul
1 carrier, 4 flights/week nonstop.
1 Airlines 4 Flights/wk 369 mi 1h 30m nonstop 2 1-stop hubs

HSG–ICN is served by 1 airline with nonstop service. T'way Air leads the route. The flight covers 369 miles in approximately 1h 30m. Beyond nonstop, 2 hubs offer 1-stop connections.

Airline Landscape

All carriers operating nonstop HSG–ICN service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
TW T'way Air 4 738 1h30
Aircraft on this route
738 Boeing 737-800 – TW
Alliance coverage
Unaffiliated: TW (4 flights/wk, 100%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.

Weekly Schedule Pattern

Nonstop flight frequency by day of week, HSG to ICN direction.
Mon
1
flight
Tue
0
flights
Wed
1
flight
Thu
0
flights
Fri
1
flight
Sat
0
flights
Sun
1
flight
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
1
Nonstop flights
4
Outbound / wk
4
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for HSG to ICN.
1-STOP
One-Stop Connections
2
Hubs
~10h
Fastest
~22h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
149
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.

Other ways to reach Seoul from Saga

Nearby airports with service to Incheon International Airport.
Metric HSG→ICN NGS→ICN FUK→ICN
Distance from HSG 28 mi 31 mi
Nonstop airlines 1 1 8
Weekly flights 4 4 164
Flight time 1h 30m 1h 40m 1h 10m
Airports within 200 miles of HSG with service to Incheon International Airport.

Travel Essentials

Practical planning for this route.
Time Difference
0h
Seoul is 0 hours the same as Saga.
HSG: JST · ICN: KST

When it's 6:00 PM in Saga, it's 6:00 PM in Seoul.
Distance & Flight Time
369 mi / 594 km
Nonstop flight time is approximately 1h 30m.
Visa & Entry

Japanese passport holders enter South Korea visa-free for up to 90 days. No fee, no advance registration. Passport must be valid for the duration of stay. K-ETA (Korea Electronic Travel Authorization) was required from 2021 to 2023 but has been suspended for Japanese nationals through the end of 2025. If K-ETA resumes, it costs KRW 10,000 (about JPY 1,100) and takes 24 to 72 hours to process at k-eta.go.kr.

Entry is fast. Immigration at Incheon (ICN) typically takes 15 to 30 minutes with automated gates available for repeat visitors who register biometrics. You need a return or onward ticket and may be asked about accommodation. No proof of funds is routinely requested for Japanese passport holders. The 90-day stay cannot be extended for tourism purposes.

Direct flights from Tokyo Narita and Haneda to Seoul Incheon run about 2 hours 30 minutes, with dozens of daily frequencies on ANA, JAL, Korean Air, Asiana, Peach, T'way, Jin Air, and Jeju Air. Osaka Kansai, Nagoya Centrair, and Fukuoka also have heavy direct service. South Korea uses the Korean won (KRW), trading at roughly 9.5 KRW per JPY. T-money transit cards cost KRW 4,000 at any convenience store and work on all Seoul buses, subway, and taxis. No vaccination requirements.

Getting from ICN

AREX Direct Train to Seoul Station (43 min, ₩11,000) is a reserved-seat express. The All-Stop train serves Hongik University, City Hall, and other inner-city stations (66 min, ₩4,550). T2 passengers board at a dedicated T2 stop before T1; don't exit early. City Check-in at Seoul Station allows bag drop and boarding pass printing before the train for select airlines.Limousine buses serve major hotel zones and neighborhoods (₩16,000–18,000). Taxis from ICN to central Seoul cost ₩65,000–90,000; use only official orange (general) or black (deluxe) cabs from the designated stands. KakaoTaxi (ride-hail) operates from the airport.

Seoul Climate

Humid continental climate. Winters are cold and dry (−8 to 2°C, December–February) with occasional snow and wind chill. ICN handles snow well, though heavy falls delay operations. Summer monsoon (Changma) runs late June through July with heavy continuous rain. Typhoons can affect operations August–September with short notice.

Spring brings Yellow Dust (hwangsa) from China. Fine particulate storms reduce visibility and occasionally disrupt flights in March–April. Autumn (October–November) is the best flying season: clear skies, low humidity, 8–18°C. Pack layers for spring and fall. Summer is hot and humid (25–32°C).

HSG–ICN Quick Facts

Key statistics for the Saga to Seoul route.
Route details
Distance369 mi / 594 km
Flight time1h 30m
Time difference0 hours
Airlines (nonstop)1
Weekly flights4 out / 4 return
1-stop connections2 hubs
Origin: HSG
IATA / ICAOHSG / RJFS
TimezoneAsia/Tokyo
Elevation6 ft / 2 m
Destination: ICN
IATA / ICAOICN / RKSI
TimezoneAsia/Seoul
Passengers/yr71.2M
Elevation23 ft / 7 m

Frequently Asked Questions

Common questions about HSG to ICN flights.
Nonstop flights from Kyushu Saga International Airport to Incheon International Airport take approximately 1h 30m. The route covers 369 miles.
1 airline operates nonstop service: T'way Air.
There are approximately 4 nonstop flights per week from HSG to ICN. The return direction has about 4 weekly flights.
Yes, 1-stop connections are available through HND and TPE. These options provide additional schedule flexibility.
Yes, return flights from ICN to HSG are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include NGS, FUK and KMJ. See the Alternatives section for a full comparison.
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.

Flights from HSG to ICN

Kyushu Saga International Airport (HSG) and Incheon International Airport (ICN) are connected by nonstop service from T'way Air. With 4 weekly departures, this is a regularly served route.

HSG to ICN Flight Duration and Schedule

Nonstop flight time from HSG to ICN ranges from 1 hours 30 minutes. The route covers a distance of 369 miles (594 km). There are approximately 4 weekly flights outbound and 4 return, totaling 8 flights per week in both directions.

Connecting Options and Alternatives

2 one-stop connections are available, with the fastest taking approximately 10 hours via HND. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Nagasaki (NGS), Fukuoka (FUK) and Kumamoto (KMJ).