$20 Cheap Flights from Jeju (CJU) to Cheongju (CJJ)

View $20 flight on Tue, Sep 2, 2025Opens in a new window

Popular airlines from Jeju Intl. Airport (CJU) to Cheongju (CJJ-Cheongju Intl.)

Cheap Flights from Jeju to Cheongju (CJU-CJJ)

Prices were available within the past 7 days and start at $20 for one-way flights and $51 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aero K Airlines
Wed, Sep 17 - Wed, Sep 24
CJU
Jeju City
CJJ
Cheongju
$51 Roundtrip, found 2 days ago
$51
Roundtrip
found 2 days ago
Select Aero K Airlines flight, departing Wed, Sep 17 from Jeju City to Cheongju, returning Wed, Sep 24, priced at $51 found 2 days ago
Aero K Airlines
Mon, Sep 1 - Thu, Sep 4
CJU
Jeju City
CJJ
Cheongju
$55 Roundtrip, found 2 days ago
$55
Roundtrip
found 2 days ago
Select Aero K Airlines flight, departing Mon, Sep 1 from Jeju City to Cheongju, returning Thu, Sep 4, priced at $55 found 2 days ago
Aero K Airlines
Wed, Sep 17 - Wed, Sep 24
CJU
Jeju City
CJJ
Cheongju
$58 Roundtrip, found 2 days ago
$58
Roundtrip
found 2 days ago
Select Aero K Airlines flight, departing Wed, Sep 17 from Jeju City to Cheongju, returning Wed, Sep 24, priced at $58 found 2 days ago
Aero K Airlines
Fri, Aug 29 - Tue, Sep 2
CJU
Jeju City
CJJ
Cheongju
$62 Roundtrip, found 5 days ago
$62
Roundtrip
found 5 days ago
Select Aero K Airlines flight, departing Fri, Aug 29 from Jeju City to Cheongju, returning Tue, Sep 2, priced at $62 found 5 days ago
Aero K Airlines
Fri, Sep 5 - Tue, Sep 9
CJU
Jeju City
CJJ
Cheongju
$62 Roundtrip, found 1 day ago
$62
Roundtrip
found 1 day ago
Select Aero K Airlines flight, departing Fri, Sep 5 from Jeju City to Cheongju, returning Tue, Sep 9, priced at $62 found 1 day ago
Aero K Airlines
Thu, Sep 18 - Sun, Sep 21
CJU
Jeju City
CJJ
Cheongju
$65 Roundtrip, found 3 days ago
$65
Roundtrip
found 3 days ago
Select Aero K Airlines flight, departing Thu, Sep 18 from Jeju City to Cheongju, returning Sun, Sep 21, priced at $65 found 3 days ago
Aero K Airlines
Mon, Sep 1 - Fri, Sep 5
CJU
Jeju City
CJJ
Cheongju
$77 Roundtrip, found 2 days ago
$77
Roundtrip
found 2 days ago
Select Aero K Airlines flight, departing Mon, Sep 1 from Jeju City to Cheongju, returning Fri, Sep 5, priced at $77 found 2 days ago
Aero K Airlines
Sun, Sep 21 - Sun, Sep 28
CJU
Jeju City
CJJ
Cheongju
$116 Roundtrip, found 3 days ago
$116
Roundtrip
found 3 days ago
Select Aero K Airlines flight, departing Sun, Sep 21 from Jeju City to Cheongju, returning Sun, Sep 28, priced at $116 found 3 days ago
Aero K Airlines
Sun, Sep 21 - Sun, Sep 28
CJU
Jeju City
CJJ
Cheongju
$120 Roundtrip, found 3 days ago
$120
Roundtrip
found 3 days ago
Select Aero K Airlines flight, departing Sun, Sep 21 from Jeju City to Cheongju, returning Sun, Sep 28, priced at $120 found 3 days ago
Korean Air
Sun, Oct 5 - Thu, Oct 9
CJU
Jeju City
CJJ
Cheongju
$211 Roundtrip, found 14 hours ago
$211
Roundtrip
found 14 hours ago
Select Korean Air flight, departing Sun, Oct 5 from Jeju City to Cheongju, returning Thu, Oct 9, priced at $211 found 14 hours ago
Flights from Jeju (CJU) to Cheongju (CJJ)
Origin airport
Jeju Intl.
Destination airport
Cheongju Intl.
Airlines serving
Aero K Airlines, Asiana Airlines, Korean Air
Roundtrip price
$50
Distance
228 mi
Average flight time
1 hour 8 mins

Jeju to Cheongju Flights

The cheapest times to fly from Jeju to Cheongju

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Jeju to Cheongju are during the month of September. You can find some of the cheapest flights from Jeju to Cheongju with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Jeju to Cheongju

Sunday is one of the best days to book for cheap flights from Jeju to Cheongju: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Jeju to Cheongju

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Jeju to Cheongju in 2025. You can also book with separate airlines for your outbound and return journeys, from $20 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Jeju to Cheongju flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Jeju to Cheongju airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Jeju Intl. Airport (CJU) to Cheongju Intl. Airport (CJJ) cost?
Grab a cheap one-way flight from $20 or cheap return flight from $51 from Jeju Intl. Airport (CJU) to Cheongju Intl. Airport (CJJ) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Jeju Intl. Airport (CJU) to Cheongju Intl. Airport (CJJ)?
September is the least expensive month to fly from CJU to CJJ. Traveling outside of peak seasons is often the key to finding better fares.
Which airlines fly direct from Jeju Intl. Airport (CJU) to Cheongju Intl. Airport (CJJ)?
When flying out of Jeju Intl. Airport (CJU), 7 carriers can take you directly to Cheongju Intl. Airport (CJJ) without a layover, including:

  • Korean Air
  • Jeju Air
  • TWay Air
  • EASTAR JET
  • Aero K Airlines

What is the cheapest airline that flies from Jeju Intl. Airport (CJU) to Cheongju Intl. Airport (CJJ)?
While prices can change depending on when you travel, low-cost airlines like EASTAR JET and T'Way Air are often the cheapest options for flights between Jeju Intl. Airport (CJU) and Cheongju Intl. Airport (CJJ). Use Expedia's search tool to compare carriers and find the one that offers the best deal for your CJU to CJJ flight.
How many flights per day from Jeju Intl. Airport (CJU) to Cheongju Intl. Airport (CJJ)?
Every day, an average of 22 nonstop flights operate from Jeju Intl. Airport (CJU) to Cheongju Intl. Airport (CJJ). Choose the departure time that works for you.
What are the most popular departure times for flights from Jeju Intl. Airport (CJU) to Cheongju Intl. Airport (CJJ)?
Flights between CJU and CJJ tend to be busiest at 9 AM. If you're after a more relaxed atmosphere and potentially cheaper tickets, choose a departure that's outside typical rush times.
What day of the week has the most flights from CJU to CJJ?
Fly on a Sunday if you're looking for the best selection of flights from Jeju Intl. Airport (CJU) to Cheongju Intl. Airport (CJJ).
What is the earliest flight from Jeju Intl. Airport (CJU) to Cheongju Intl. Airport (CJJ)?
Catch the earliest flight at around 7:30AM UTC+9, departing from Jeju Intl. Airport (CJU). You'll be in the air for around 1h 10m, touching down at Cheongju Intl. Airport (CJJ) at approximately 8:40AM UTC+9.
How long does it take to fly from Jeju Intl. Airport (CJU) to Cheongju Intl. Airport (CJJ)?
It usually takes 1 hour and 7 minutes to fly the 230 mi from CJU to CJJ.
What airline has the least delays from CJU to CJJ?
With 81% of journeys typically arriving as scheduled, Korean Air has the best on-time performance for nonstop flights from Jeju Intl. Airport (CJU) to Cheongju Intl. Airport (CJJ). To monitor your flight status and get notified if anything changes, use the Expedia App.
What is the best time to fly from Jeju Intl. Airport (CJU) to Cheongju Intl. Airport (CJJ)?
Select a flight from Jeju Intl. Airport (CJU) to Cheongju Intl. Airport (CJJ) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Cheongju from Jeju Intl. Airport (CJU)?
Hop on a direct flight from Jeju Intl. Airport (CJU) to Cheongju and touch down at Cheongju Intl. Airport (CJJ). Another gateway to this destination is Wonju Airport (WJU).
Is it cheaper to buy a plane ticket from Jeju Intl. Airport (CJU) to Cheongju Intl. Airport (CJJ) last-minute?
Last-minute bookings from CJU to CJJ are typically more expensive. To lock in the best rates, start searching for flights ahead of time. That said, if you can play around with your travel dates, you may land a cheap ticket right before you leave.
Is it cheaper to book a CJU to CJJ flight and hotel package?
Securing a CJU to CJJ flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Select from our impressive range of stays and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Jeju Intl. Airport (CJU) to Cheongju Intl. Airport (CJJ)?
It's usually possible to reschedule or cancel your CJU to CJJ flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.