£42 Cheap Flights from Ulsan (USN) to Jeju (CJU)

Q: How much are return flights from Ulsan to Jeju?

The best price we found for a return flight from Ulsan to Jeju is £42. 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.

Q: How long does it take to fly from Ulsan to Jeju?

1 hour and 7 minutes is the average flight time from Ulsan to Jeju.

Q: Which airlines fly direct from Ulsan to Jeju?

Korean Air and Jin Air fly direct from Ulsan to Jeju.

Q: How many flights are there a week from Ulsan to Jeju?

As of May 2025, there are 15 flights per week flying from Ulsan to Jeju.

Q: When is the cheapest time to fly from Ulsan to Jeju?

The cheapest month to fly from Ulsan to Jeju is usually May 2025.

Q: Which upcoming date is cheapest to fly from Ulsan Airport to Jeju Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ulsan Airport to Jeju Airport on Tuesday, 15 July 2025 .

Q: Can I get a direct flight from Ulsan Airport to Jeju Airport?

Yes – the average flight time is 1 hour and 7 minutes.

Q: How can I find the best flight deal to Jeju?

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 Jeju 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.

Q: When is the best time to book flights to Jeju?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Jeju is around 40 days in advance, so don’t leave your flight to the last minute.

Q: Which is the cheapest airline to fly from Ulsan Airport to Jeju with?

Currently, Korean Air offers the cheapest flight tickets to Jeju.

Compare Ulsan to Jeju flight deals

Find the cheapest month or even day of the year to fly to Jeju

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Flight deals Cheapest month Find the best route Route info FAQs Tips and advice

Flight deals from Ulsan to Jeju

Looking for a cheap last-minute deal or the best return flight from Ulsan to Jeju? Find the lowest prices on one-way and return tickets right here.

Jeju.£42 per passenger.Departing Tue, 10 Jun, returning Tue, 24 Jun.Return flight with Korean Air.Outbound direct flight with Korean Air departs from Ulsan on Tue, 10 Jun, arriving in Jeju.Inbound direct flight with Korean Air departs from Jeju on Tue, 24 Jun, arriving in Ulsan.Price includes taxes and charges.From £42, select.

Jeju.£42 per passenger.Departing Wed, 25 Jun, returning Wed, 2 Jul.Return flight with Korean Air.Outbound direct flight with Korean Air departs from Ulsan on Wed, 25 Jun, arriving in Jeju.Inbound direct flight with Korean Air departs from Jeju on Wed, 2 Jul, arriving in Ulsan.Price includes taxes and charges.From £42, select.

Jeju.£42 per passenger.Departing Tue, 15 Jul, returning Tue, 22 Jul.Return flight with Korean Air.Outbound direct flight with Korean Air departs from Ulsan on Tue, 15 Jul, arriving in Jeju.Inbound direct flight with Korean Air departs from Jeju on Tue, 22 Jul, arriving in Ulsan.Price includes taxes and charges.From £42, select.

Jeju.£42 per passenger.Departing Wed, 28 May, returning Wed, 11 Jun.Return flight with Korean Air.Outbound direct flight with Korean Air departs from Ulsan on Wed, 28 May, arriving in Jeju.Inbound direct flight with Korean Air departs from Jeju on Wed, 11 Jun, arriving in Ulsan.Price includes taxes and charges.From £42, select.

Jeju.£44 per passenger.Departing Tue, 13 May, returning Wed, 28 May.Return flight with Korean Air.Outbound direct flight with Korean Air departs from Ulsan on Tue, 13 May, arriving in Jeju.Inbound direct flight with Korean Air departs from Jeju on Wed, 28 May, arriving in Ulsan.Price includes taxes and charges.From £44, select.

Jeju.£60 per passenger.Departing Tue, 6 Jan, returning Thu, 8 Jan.Return flight with Korean Air.Outbound direct flight with Korean Air departs from Ulsan on Tue, 6 Jan, arriving in Jeju.Inbound direct flight with Korean Air departs from Jeju on Thu, 8 Jan, arriving in Ulsan.Price includes taxes and charges.From £60, select.

Jeju.£62 per passenger.Departing Thu, 11 Dec, returning Wed, 17 Dec.Return flight with Korean Air.Outbound direct flight with Korean Air departs from Ulsan on Thu, 11 Dec, arriving in Jeju.Inbound direct flight with Korean Air departs from Jeju on Wed, 17 Dec, arriving in Ulsan.Price includes taxes and charges.From £62, select.

Jeju.£65 per passenger.Departing Sat, 10 May, returning Tue, 1 Jul.Return flight with Korean Air.Outbound direct flight with Korean Air departs from Ulsan on Sat, 10 May, arriving in Jeju.Inbound direct flight with Korean Air departs from Jeju on Tue, 1 Jul, arriving in Ulsan.Price includes taxes and charges.From £65, select.

Find the cheapest month to fly from Ulsan to Jeju

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

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Direct flights from Ulsan to Jeju

Ulsan to Jeju: Alternative routes

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

Ulsan to Jeju: Flight information

The things to know before you go.

Cheapest flight found	£42
Cheapest month to fly	July
Average flight time	1 hr, 7 mins
Most popular airline	Korean Air
Average flights per week	15

Finding cheap flights from Ulsan to Jeju: Frequently asked questions

How much are return flights from Ulsan to Jeju?

How long does it take to fly from Ulsan to Jeju?

Which airlines fly direct from Ulsan to Jeju?

How many flights are there a week from Ulsan to Jeju?

When is the cheapest time to fly from Ulsan to Jeju?

Which upcoming date is cheapest to fly from Ulsan Airport to Jeju Airport on?

Can I get a direct flight from Ulsan Airport to Jeju Airport?

How can I find the best flight deal to Jeju?

When is the best time to book flights to Jeju?

Which is the cheapest airline to fly from Ulsan Airport to Jeju with?

Travelling from Ulsan Airport (USN) to Jeju International Airport (CJU): what you need to know

Take a direct flight from Ulsan Airport to Jeju International Airport and you'll be in the air for an average of 1 hour 5 minutes.
Ulsan and Jeju share the same timezone, UTC+9.
Choose from 80 weekly Ulsan Airport to Jeju International Airport flights. The 12:35 departure with Jin Air is the earliest available. Korean Air operates the latest service of the day at 16:05.
For a stress-free journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This way, you can comfortably catch your USN to CJU flight.
Travelling during a peak time like April? School holidays and other popular seasons can result in longer queues at airport checkpoints. Play things extra safe and get there up to four hours ahead of international flights and two hours before domestic departures.
Korean Air has direct flights from Ulsan Airport to Jeju International Airport. Book with this popular airline, then get ready to check out the sights in Jeju — and maybe even more of South Korea if you have time.
The airline that passengers book most often on this route is Korean Air.
With a reliable 95.8% of services arriving as planned, Korean Air is the most punctual carrier operating USN to CJU flights.

How to find the cheapest flights from Ulsan Airport (USN) to Jeju International Airport (CJU)

Right now, £16 is the lowest price we've seen for a one-way Ulsan Airport to Jeju International Airport flight. The best price for a return plane ticket is £42. Remember that fares could change due to availability when booking.
Score cheap tickets from USN to CJU by booking at least five months ahead. Based on our research, that's the sweet spot for finding a bargain.
April is the cheapest month for flights from Ulsan Airport to Jeju International Airport. If you need to fly at a different time of year, the 'Whole month' tool will give you the lowest airfares across every month.
Save time searching for cheap flights from USN to CJU by setting up a Price Alert. You'll receive an email or notification on the app when a new low fare is offered.
Tailor your trip with filters. Choose your preferred arrival and departure times, airlines and total journey duration. You can also sort your results by 'Best,' 'Fastest' or 'Cheapest' flights from Ulsan Airport to Jeju International Airport.

Handy information about Ulsan Airport (USN)

78.76% of flights that leave from Ulsan Airport arrive at their destination on schedule.
To discover the best way to get from central Ulsan to Ulsan Airport, use navigation tools like Google Maps. The airport is around 7 miles from the city centre.
Planning to take public transport? You can expect a journey time of around 1 hour 35 minutes.
Searching for a convenient hotel near USN? If you've booked an early flight from Ulsan Airport to Jeju International Airport, these stays will have you moments from your check-in counter:

Arriving at Jeju International Airport (CJU)

Book a hotel close to CJU if you're on a late Ulsan Airport to Jeju International Airport flight. Settle into one of these options and skip the long transfer:
Follow your own route with a Jeju International Airport rental car. Pick up a set of wheels from Rainbow rental, TamRa or 패밀리렌트카 and venture far and wide through Jeju and beyond.
Booking your vehicle from Jeju International Airport around three weeks in advance can help you secure the lowest rate.

Getting from Jeju International Airport (CJU) to central Jeju

The centre of Jeju is about 2 miles from Jeju International Airport. The drive time will vary depending on traffic conditions, so do a little research before your trip.
It takes roughly 30 minutes to get there by public transport.

When to fly to Jeju International Airport (CJU)

It's time to pick your trip dates for your flight from Ulsan Airport to Jeju International Airport. July is the busiest month to visit Jeju. If you want a quieter vibe, go in April.
Book your flight from Ulsan Airport to Jeju International Airport for August if you'd like to go to Jeju during its warmest month. Expect temperatures of between 22ºC (72ºF) and 30ºC (86ºF).
Look for cheap tickets from USN to CJU in January if you want to travel in cooler conditions. Temperatures are at their lowest around then, ranging between 0ºC (32ºF) and 9ºC (48ºF) on average.

Explore more of South Korea

Jeju is easy to fall in love with, but there are so many other parts of South Korea just waiting to be explored. Around 280 miles north of Jeju, a visit to Seoul will keep your itinerary busy. Start with popular sights like Gyeongbokgung Palace, Bukchon Hanok Village and N Seoul Tower.
If there's time to check out another major destination in South Korea, head for Busan, roughly 190 miles north-east of Jeju. Haeundae Beach, Gamcheon Culture Village and Beomeosa Temple are among its highlights.