Which is the busiest airline route in the world? Seoul to Jeju in South Korea

Airfare from Seoul to Jeju

On the busiest airline route, from Jeju to Seoul, flights starts at 25$US one way, with many companies competing to transfer some of the 37000 average daily passengers on one of the 180 flights a day, both ways.

The cheapest airline is Easterjet starting at 25$, and the most convenient one is Asiania airlines, starting at 29$.

The flight time is only 1h10min, which is an average domestic flight, but this one from  Seoul to Jeju   is the most competitive one in the world!

What is Jeju

Jeju island in South Korea is nicknamed the Hawaii of Korea, it is a leisure island, with many resorts, beaches, volcanoes, and beautiful waterfalls.

Eastarjet Seoul to Jeju

Starting at US$25 one way direct flight, with cabin  luggage   and checked  baggage   included, the Eastarjet flights on the busiest airline route in the world are some of the cheapest on that route.

The best rates at US$25 are in the evening, and the morning flights can be more expensive.

With 12 connections a day, leaving Seoul at following times, their offer is very complete for single trip from Seoul to Jeju:

• Leaving Seoul GMP Gimpo International airport at 0740, landing in CJU Jeju airport at 0850,
• Leaving Seoul GMP Gimpo International airport at 0950, landing in CJU Jeju airport at 1100,
• Leaving Seoul GMP Gimpo International airport at 1115, landing in CJU Jeju airport at 1225,
• Leaving Seoul GMP Gimpo International airport at 1140, landing in CJU Jeju airport at 1250,
• Leaving Seoul GMP Gimpo International airport at 1255, landing in CJU Jeju airport at 1405,
• Leaving Seoul GMP Gimpo International airport at 1550, landing in CJU Jeju airport at 1700,
• Leaving Seoul GMP Gimpo International airport at 1655, landing in CJU Jeju airport at 1805,
• Leaving Seoul GMP Gimpo International airport at 1820, landing in CJU Jeju airport at 1930,
• Leaving Seoul GMP Gimpo International airport at 1925, landing in CJU Jeju airport at 2035,
• Leaving Seoul GMP Gimpo International airport at 1945, landing in CJU Jeju airport at 2050,
• Leaving Seoul GMP Gimpo International airport at 2000, landing in CJU Jeju airport at 2110,
• Leaving Seoul GMP Gimpo International airport at 2020, landing in CJU Jeju airport at 2130.

Asiana Airlines flights Seoul to Jeju

The Star Alliance partner Asiana airlines offers flights starting at US$29, making it the best choice on this route, mainly because it is part of a recognized alliance, and therefore the flights can be included in a longer route, and offer more benefits to frequent travelers.

The cabin  baggage   and checked  baggage   also are included in the price, and with as many as 26 connections per day, a very large choice of schedules are offered to accommodate all needs.

The most expensive connections are in the first half of the day, while the cheaper ones are in the end of the afternoon.

The following connections are available with Asiana Airlines on the  Seoul to Jeju   route:

• departure from Seoul at 0610, landing in Jeju at 0720,
• departure from Seoul at 0620, landing in Jeju at 0730,
• departure from Seoul at 0650, landing in Jeju at 0800,
• departure from Seoul at 0655, landing in Jeju at 0805,
• departure from Seoul at 0710, landing in Jeju at 0820,
• departure from Seoul at 0735, landing in Jeju at 0845,
• departure from Seoul at 0845, landing in Jeju at 0955,
• departure from Seoul at 0950, landing in Jeju at 1055,
• departure from Seoul at 1055, landing in Jeju at 1205,
• departure from Seoul at 1100, landing in Jeju at 1210,
• departure from Seoul at 1135, landing in Jeju at 1245,
• departure from Seoul at 1220, landing in Jeju at 1330,
• departure from Seoul at 1320, landing in Jeju at 1425,
• departure from Seoul at 1325, landing in Jeju at 1430,
• departure from Seoul at 1350, landing in Jeju at 1500,
• departure from Seoul at 1445, landing in Jeju at 1555,
• departure from Seoul at 1450, landing in Jeju at 1600,
• departure from Seoul at 1500, landing in Jeju at 1610,
• departure from Seoul at 1525, landing in Jeju at 1630,
• departure from Seoul at 1530, landing in Jeju at 1640,
• departure from Seoul at 1605, landing in Jeju at 0710,
• departure from Seoul at 1725, landing in Jeju at 1835,
• departure from Seoul at 1810, landing in Jeju at 1920,
• departure from Seoul at 1835, landing in Jeju at 1945,
• departure from Seoul at 1845, landing in Jeju at 1955,
• departure from Seoul at 1915, landing in Jeju at 2025,
• departure from Seoul at 2010, landing in Jeju at 2120.

T'way airlines flights from Seoul to Jeju

Also starting at US$29, the 15 daily connections from  Seoul to Jeju   of T'way airlines spread the whole day, from 7am departure from Seoul for the earlier one, until 1905 departure with arrival at 2015 for the later one.

Just like the other airlines, the cheapest flights are in the evening, and flying during the day is more expensive, connections going up to 63$ for flights landing right before lunch time.

The check  baggage   and cabin  baggage   are included in the price, like the competition.

T'way flights and airfare from Seoul to Jeju:

• departure Seoul 1905, landing Jeju 2015,
• departure Seoul 1845, landing Jeju 1955,
• departure Seoul 1805, landing Jeju 1915,
• departure Seoul 1725, landing Jeju 1835,
• departure Seoul 1515, landing Jeju 1625,
• departure Seoul 0700, landing Jeju 0810,
• departure Seoul 1420, landing Jeju 1530,
• departure Seoul 1405, landing Jeju 1515,
• departure Seoul 0640, landing Jeju 0750,
• departure Seoul 1255, landing Jeju 1405,
• departure Seoul 1320, landing Jeju 1430,
• departure Seoul 0815, landing Jeju 0925,
• departure Seoul 1145, landing Jeju 1255,
• departure Seoul 1030, landing Jeju 1140,
• departure Seoul 0935, landing Jeju 1045.

Korean Air flights from Seoul to Jeju

With 21 daily connections, starting at US$37, the Korean air flights from  Seoul to Jeju   also cover many possibilities for the travelers.

Another advantage from Korean Air, is to be part of SkyTeam airlines alliance network, permitting all network airlines to offer code share flights to Jeju with Korean Airlines.

The difference with other airlines is their cheapest flight, leaving early in the morning, and some of their most expensive ones are in the evening, which is the inverse of what other airlines are offering on this route.

The cabin and checked  baggage   are included in the price.

Korean Air flight schedule from Seoul to Jeju:

• departure Seoul 0645, landing Jeju 0755,
• departure Seoul 0800, landing Jeju 0910,
• departure Seoul 0855, landing Jeju 1005,
• departure Seoul 0900, landing Jeju 1010,
• departure Seoul 0955, landing Jeju 1105,
• departure Seoul 1105, landing Jeju 1215,
• departure Seoul 1130, landing Jeju 1240,
• departure Seoul 1200, landing Jeju 1310,
• departure Seoul 1230, landing Jeju 1340,
• departure Seoul 1325, landing Jeju 1435,
• departure Seoul 1335, landing Jeju 1445,
• departure Seoul 1545, landing Jeju 1655,
• departure Seoul 1605, landing Jeju 1715,
• departure Seoul 1635, landing Jeju 1745,
• departure Seoul 1735, landing Jeju 1845,
• departure Seoul 1750, landing Jeju 1900,
• departure Seoul 1840, landing Jeju 1950,
• departure Seoul 1900, landing Jeju 2010,
• departure Seoul 2025, landing Jeju 2135,
• departure Seoul 2050, landing Jeju 2200,
• departure Seoul 2100, landing Jeju 2210.

Frequently Asked Questions

What factors contribute to the Seoul to Jeju route being the busiest in the world, and how does this high traffic impact travelers?

Factors include high demand for domestic travel, Jeju's popularity as a tourist destination, and frequent business trips. High traffic results in frequent flights but may also lead to congestion and potential delays.