← FlightMVP

Flights between Hanoi (Soc Son) (HAN) and Seoul (ICN)

Noi Bai International Airport, Vietnam ↔ Incheon International Airport, South Korea

A direct route between Hanoi (Soc Son) and Seoul appears in the OpenFlights route network.

Airlines currently operating this route:

Observed from recent schedules · as of 26 Jul 2026 — sampled, not a live timetable; confirm with the airline.

Air Incheon (KJ)Asiana Airlines (OZ)Jeju Air (7C)Korean Air (KE)Parata Air (WE)VietJetAir (VJ)Vietnam Airlines (VN)
Distance
2,684 km
1,668 miles
Est. flight time
3h 51m
great-circle estimate
Time difference
~2h
varies with DST
View this route on the live map →Search fares on Skyscanner ↗

Climate

Typical monthly temperatures in Vietnam

Jan
25°
30/20
15mm
Feb
26°
31/21
20mm
Mar
28°
33/23
30mm
Apr
30°
35/25
50mm
May
33°
38/28
130mm
Jun
33°
38/28
180mm
Jul
33°
38/28
200mm
Aug
32°
37/27
250mm
Sep
31°
36/26
290mm
Oct
29°
34/24
290mm
Nov
27°
32/22
80mm
Dec
25°
30/20
25mm

Mean °C (high/low below), avg. rainfall mm · country-level monthly normals, not airport-specific.

Typical monthly temperatures in South Korea

Jan
3°
8/-2
20mm
Feb
6°
11/1
25mm
Mar
11°
16/6
50mm
Apr
18°
23/13
70mm
May
23°
28/18
100mm
Jun
27°
32/22
130mm
Jul
29°
34/24
350mm
Aug
30°
35/25
290mm
Sep
26°
31/21
170mm
Oct
20°
25/15
50mm
Nov
12°
17/7
50mm
Dec
5°
10/0
25mm

Mean °C (high/low below), avg. rainfall mm · country-level monthly normals, not airport-specific.

Travel advisories

South Korea: Normal precautions (UK FCDO) ↗

Common questions

How far is Hanoi (Soc Son) from Seoul?

Hanoi (Soc Son) (HAN) and Seoul (ICN) are around 2,684 km (1,668 miles) apart — an estimated 3h 51m by air. Distances and flight times are great-circle estimates.

Which airlines have operated the HAN–ICN route?

Airlines recorded operating this route in the OpenFlights network include Air Incheon, Asiana Airlines, Jeju Air, Korean Air, Parata Air, VietJetAir, Vietnam Airlines. This reflects historical scheduled service and may be out of date.

What is the time difference between Hanoi (Soc Son) and Seoul?

Time difference ~ 2 hours (varies with daylight-saving).

When is it warmest in South Korea?

Across South Korea, the warmest month on average is August, with mean temperatures around 30°C. These are country-level monthly climate normals, not airport-specific.

Is there a travel advisory for South Korea?

The UK FCDO currently rates South Korea as Normal precautions. Check the official source before you travel.

Distances and flight times are great-circle estimates, not booked block times.