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Route

Seoul → Haiphong

ICNSeoulIncheon International Airport
HPHHaiphongCat Bi International Airport
SaturdayFriday
Distance
1,648 mi
Estimated flight time
~3h 50m

Haiphong is currently 2 hours behind Seoul.

Observed nonstop

View the reverse route

How often does this route fly?

Frequency

Daily at most

On average around 1 flights a day, observed from October 2025 to September 2026.

1
flights per day
1
busiest month · Oct
4 hr 11 min
measured flight time
6 / 12
months seen

Through the year

Per day, month by month

  1. 1Jan2026
  2. –Feb
  3. –Mar
  4. –Apr
  5. –May
  6. –Jun
  7. –Jul
  8. 1Aug
  9. 1Sep
  10. 1Oct2025
  11. 1Nov
  12. 1Dec

In October 2025 we saw less traffic at Seoul in general than usual; compare that month with care.

Airlines

Who flies it

Vietjetautumn

Through the day

Departure times

Local time in Seoul. Most departures between 07:00 and 10:00.

  1. 00:00
  2. 01:00
  3. 02:00
  4. 03:00
  5. 04:00
  6. 05:00
  7. 06:00
  8. 07:00
  9. 08:00
  10. 09:00
  11. 10:00
  12. 11:00
  13. 12:00
  14. 13:00
  15. 14:00
  16. 15:00
  17. 16:00
  18. 17:00
  19. 18:00
  20. 19:00
  21. 20:00
  22. 21:00
  23. 22:00
  24. 23:00

Through the week

By weekday

  1. 0.3Mon
  2. 0.2Tue
  3. 0.2Wed
  4. 0.2Thu
  5. 0.2Fri
  6. 0.2Sat
  7. 0.2Sun

Fleet

Aircraft observed

  1. Airbus A321A32178%
  2. Airbus A321neoA21N19%
All the numbers in a table
MonthPer daySeenAirlines
January 202613
  • Vietjet3×
February 2026Not seen in this month.
March 2026Not seen in this month.
April 2026Not seen in this month.
May 2026Not seen in this month.
June 2026Not seen in this month.
July 2026Not seen in this month.
August 2026118
  • Vietjet18×
September 2026122
  • Vietjet22×
October 2025115
  • Vietjet15×
November 202518
  • Vietjet8×
December 202512
  • Vietjet2×

Airlines observed on this route

From observed callsign routes on ICN-HPH - not a booking guarantee.

Vietjet

VJ · VJC

Hub: HAN Hanoi

22 departure airportsView airline →

About this route

  • International route: Seoul and Haiphong are in different countries.
  • The opposite direction has also been observed as a direct connection.
  • Direct destinations observed from Seoul: 99.
  • Direct destinations observed from Haiphong: 4.

The airports on this route

Incheon International Airport

Seoul, South KoreaICN / RKSI

International hub · 99 direct destinations · 4 runways · longest runway 13,123 ft

63 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center

Airport pageAll direct destinations

Cat Bi International Airport

Haiphong, VietnamHPH / VVCI

Major airport · 4 direct destinations · 1 runway · longest runway 10,007 ft

82 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center

Airport pageAll direct destinations

Alternative airports for this journey

Same journey, a different airport nearby - with an observed direct connection.

ICN HANNoi Bai International AirportHanoi is about 65 mi from Haiphong.View route →

About the route from Seoul to Haiphong

The observed direct connection between Incheon International Airport (ICN) and Cat Bi International Airport (HPH) covers approximately 1,648 mi. The estimated flight time is around 3h 50m. Vietjet has been observed on this connection in the available route data.

Frequently asked questions about this route

How far is Seoul from Haiphong by air?
The great-circle distance between Incheon International Airport and Cat Bi International Airport is approximately 1,648 mi.
How long is the flight from Seoul to Haiphong?
Based on the distance, the estimated flight time is about 3h 50m. This is an estimate, not a schedule.
Is there a direct connection from Seoul to Haiphong?
Yes, a direct connection between ICN and HPH has been observed in our route data.
Which airlines have been observed on this route?
In the available route data: Vietjet.
How often is there a flight from Seoul to Haiphong?
On average around 1 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 68 observed flights. Mainly Vietjet. That is an observation, not a timetable.
What is the current time difference between Seoul and Haiphong?
Haiphong is currently 2 hours behind Seoul.

Where this data comes from

The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.

The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.

Route data updated on October 11, 2026.