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Flights between Chongju (CJJ) and Cheju (CJU)

Cheongju International Airport/Cheongju Air Base (K-59/G-513), South KoreaJeju International Airport, South Korea

A direct route between Chongju and Cheju appears in the OpenFlights route network.

This reflects historical scheduled service and may be out of date — it is not a live timetable.

Airlines that have operated this route include:

7CKorean Air (KE)Asiana Airlines (OZ)ZE
Distance
368 km
229 miles
Est. flight time
58m
great-circle estimate
Time difference
None
varies with DST
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Climate

Typical monthly temperatures in South Korea

Jan
8/-2
20mm
Feb
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
10/0
25mm

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

Typical monthly temperatures in South Korea

Jan
8/-2
20mm
Feb
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
10/0
25mm

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

Common questions

How far is Chongju from Cheju?

Chongju (CJJ) and Cheju (CJU) are around 368 km (229 miles) apart — an estimated 58m by air. Distances and flight times are great-circle estimates.

Which airlines have operated the CJJ–CJU route?

Airlines recorded operating this route in the OpenFlights network include 7C, Korean Air, Asiana Airlines, ZE. This reflects historical scheduled service and may be out of date.

What is the time difference between Chongju and Cheju?

Both airports keep the same time — no time difference.

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.

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