Roundtrip
🇰🇷Jeju City
South Korea
Hiking Beach Island
Sep 30WedOct 7Wed
7 nights24°
Roundtrip fare
฿10,078
Steal
฿16,628-39%฿6,550 below avg
Jin AirCheapest Time to Fly to Jeju City
Compare the cheapest months to fly from Bangkok to Jeju City in THB. See separate one-way and roundtrip fare ranges, sample sizes and current deals.
One way from ฿4,832
Roundtrip from ฿10,078
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Current deals to Jeju City · Roundtrip
Outbound and return flights together in one total fare · Available fares behind the monthly comparison
Jin AirRoundtrip
Last Minute
🇰🇷Jeju City
South Korea
Hiking Beach Island
Sep 20SunSep 30Wed
9 nights24°
Roundtrip fare
฿10,082
Steal
฿16,628-39%฿6,546 below avg
Jeju AirRoundtrip
Last Minute
🇰🇷Jeju City
South Korea
Hiking Beach Island
Sep 10ThuSep 16Wed
6 nights24°
Roundtrip fare
฿10,087
Steal
฿16,628-39%฿6,541 below avg
OUT
Thai Lion Air
1 stopThai Lion AirRETAir Busan
1 stopAir BusanRoundtrip
Last Minute
🇰🇷Jeju City
South Korea
Hiking Beach Island
Sep 19SatSep 30Wed
10 nights24°
Roundtrip fare
฿10,187
Steal
฿16,628-39%฿6,441 below avg
Jeju AirRoundtrip
Last Minute
🇰🇷Jeju City
South Korea
Hiking Beach Island
Sep 10ThuSep 17Thu
7 nights24°
Roundtrip fare
฿10,250
Steal
฿16,628-38%฿6,378 below avg
OUTThai Lion Air
1 stopThai Lion AirRETAir Busan
1 stopAir BusanRoundtrip
🇰🇷Jeju City
South Korea
Hiking Beach Island
Sep 29TueOct 7Wed
8 nights24°
Roundtrip fare
฿10,285
Steal
฿16,628-38%฿6,343 below avg
Jin AirCurrent deals to Jeju City · One way
Outbound-only fares for flexible and open-ended plans · Available fares behind the monthly comparison
One way
Jeju City
South Korea
Beach Hiking Island
Sep 30Wed
One-way fare
฿4,832
Steal
฿8,122-41%฿3,290 below avg
Jin AirOne way
Jeju City
South Korea
Beach Hiking Island
Oct 19Mon
One-way fare
฿4,915
Steal
฿8,122-39%฿3,207 below avg
T'way AirMonthly fare comparison
Lowest and average fares with sample sizes.
Monthly fare comparison
Lowest and average fares with sample sizes.
January 2027
651 fares
One way31
- Min
- ฿7,270
- Avg
- ฿8,328
Roundtrip620
- Min
- ฿13,068
- Avg
- ฿17,026
February 2027
579 fares
One way26
- Min
- ฿8,114
- Avg
- ฿10,027
Roundtrip553
- Min
- ฿14,424
- Avg
- ฿18,012
March 2027
567 fares
One way27
- Min
- ฿8,313
- Avg
- ฿8,944
Roundtrip540
- Min
- ฿15,033
- Avg
- ฿18,412
September 2026
415 fares
One way21
- Min
- ฿4,832
- Avg
- ฿6,419
Roundtrip394
- Min
- ฿10,078
- Avg
- ฿14,095
October 2026
608 fares
One way31
- Min
- ฿4,915
- Avg
- ฿7,186
Roundtrip577
- Min
- ฿10,397
- Avg
- ฿15,633
November 2026
508 fares
One way30
- Min
- ฿5,598
- Avg
- ฿7,531
Roundtrip478
- Min
- ฿11,457
- Avg
- ฿14,968
December 2026
462 fares
One way31
- Min
- ฿7,026
- Avg
- ฿8,264
Roundtrip431
- Min
- ฿12,386
- Avg
- ฿17,533
How to read the monthly fare data
- Compare one-way prices only with the one-way series and roundtrip prices only with the roundtrip series.
- Use the fare count to judge how much current evidence sits behind a monthly average.
- Treat the lowest fare as an observed option, not a guaranteed future price.
- Open a month to compare exact departure dates, airlines, stops and travel time.
FAQ: Cheapest Time to Fly to Jeju City
Which month has the cheapest one-way flights from Bangkok to Jeju City?
September currently has the lowest observed one-way fare, from ฿4,832. This compares one-way fares only.
Which month has the cheapest roundtrip flights from Bangkok to Jeju City?
September currently has the lowest observed roundtrip fare, from ฿10,078. This compares complete roundtrips only.
How are the cheapest months for Jeju City calculated?
We compare current observed fares from Bangkok by departure month. One-way and roundtrip prices stay in separate series, and each monthly table shows its available fare count.
Does the cheapest month guarantee the same price later?
No. It identifies the lowest fare in the current dataset, not a future price guarantee. Confirm the final itinerary total, airports, baggage and availability before booking.
Quick Answers
Which month is cheapest one way?
September currently starts at ฿4,832, the lowest observed one-way fare among the available months.
Which month is cheapest roundtrip?
September currently starts at ฿10,078, the lowest observed complete-roundtrip fare.
What does this comparison include?
Each month shows the lowest and average observed itinerary total plus the number of available fares in that series.
Can one-way and roundtrip prices be compared?
No. They represent different products, so this page keeps their prices, averages and sample sizes separate.