$225 Flights from Incheon International (ICN) to Cheongju (CJJ)

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Find the cheapest month to fly from Incheon International to Cheongju

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Incheon International to Cheongju flights are currently cheapest in January.

Incheon International to Cheongju: Alternative routes

Compare routes from Incheon International to Cheongju below. You may find an airport to fly into that's cheaper, faster, or easier than Cheongju.

Seoul to Cheongju: Flight information

The things to know before you go.
Cheapest flight found$225
Cheapest month to flyJanuary

Finding cheap flights from Incheon International to Cheongju: Frequently asked questions

The best price we found for a round-trip flight from Incheon International to Cheongju is $366. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Incheon International to Cheongju. But we found flights with one or more stops from $367.
There are no flights flying from Incheon International to Cheongju, as of December 2025.
The cheapest month to fly from Incheon International to Cheongju is usually March.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Incheon International Airport to Cheongju Airport on Sunday, March 29, 2026.
No airlines currently offer direct flights between Incheon International Airport and Cheongju Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Cheongju but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Cheongju is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Korean Air offers the cheapest flight tickets to Cheongju.

Flying from Incheon International Airport (ICN) to Cheongju Airport (CJJ): what you need to know

  • Seoul and Cheongju are in the UTC+9 timezone. This means you won't have to change your watch on arrival.

  • Your ICN to CJJ flight won't wait if you're late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're traveling internationally.

  • You can expect bigger queues during popular months such as July. Arriving up to four hours ahead of an international flight and two hours for a domestic departure is a wise move.

  • If you'd like to break up your flight, just uncheck 'Direct flights only' when searching for your ticket from Incheon International Airport to Cheongju Airport. Here are the most popular stopovers between ICN and CJJ:

    • Kansai International Airport

    • Fukuoka Airport

    • Yanji Chaoyangchuan Airport

How to find the cheapest flights from Incheon International Airport (ICN) to Cheongju Airport (CJJ)

  • $225 is currently the lowest price for a one-way Incheon International Airport to Cheongju Airport flight. Return flights start at $367. These fares may change based on availability and demand.

  • It's often best to book as early as possible if you're looking for cheap tickets from ICN to CJJ. That's because flight prices are based on demand, which tends to increase closer to the date of departure.

  • If you're flexible with your travel plans, use the 'Whole month' tool. It'll find the lowest price across the month when searching for your flight from Incheon International Airport to Cheongju Airport.

  • Finding cheap flights from ICN to CJJ is a breeze with Price Alerts. Simply create one of these automatic alerts and we'll get in touch as soon as a lower fare pops up.

  • Select your preferred departure and arrival times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to get the best deals on flights from Incheon International Airport to Cheongju Airport.

Handy information about Incheon International Airport (ICN)

  • 54.5% of flights taking off from Incheon International Airport arrive at their destination on time.

  • The journey from central Seoul to Incheon International Airport is about 30 miles. Look up Google Maps for the quickest route, whether you're driving or taking public transport.

  • The trip on public transport typically takes 1 hour 45 minutes.

  • Get your trip off to a stress-free start by staying near ICN. Whether you have an early flight from Incheon International Airport to Cheongju Airport or want to avoid feeling rushed, these hotels have you covered:

Arriving at Cheongju Airport (CJJ)

Getting from Cheongju Airport (CJJ) to central Cheongju

  • The center of Cheongju is about 7 miles from Cheongju Airport. How long it takes to get there by car will vary depending on time of day and traffic conditions, so do some research before your trip.

  • Getting to the center on public transport typically takes 1 hour 20 minutes.

When to fly to Cheongju Airport (CJJ)

  • The quietest month for a flight from Incheon International Airport to Cheongju Airport is April, while July is the most popular. Choose the ideal time to go to Cheongju based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • The warmest month in Cheongju is August, with temperatures ranging between 66ºF and 90ºF. Book your flights from Incheon International Airport to Cheongju Airport in this month if this is the kind of weather you like.

  • Search for cheap tickets from ICN to CJJ in January if you like cooler conditions. Temperatures are at their lowest then, ranging between 14ºF and 41ºF on average.

Explore more of South Korea

  • Cheongju has loads to offer, but there are so many other corners of South Korea waiting to be discovered. About 70 miles north-west of Cheongju, a visit to Seoul will keep your itinerary busy. Don't miss top attractions like Gyeongbokgung Palace, Bukchon Hanok Village and N Seoul Tower.

  • Around 130 miles south-east of Cheongju, Busan is another favorite stop in South Korea. No visit is complete without checking out Haeundae Beach, Gamcheon Culture Village and Beomeosa Temple.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.