Seoul to Bangkok in December 2026
Round trips departing in December · Economy · Prices per person in USD
Prices updated
Buy now or wait? We're still learning this route. We have 1 day of prices so far and need about a week to say whether to book or wait.
Not ready to book? Get an email when December fares drop below your price.December 2026 by departure day
Cheapest round trip leaving that day| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| 1 $278 | 2 $247 | 3 $262 | 4 $269 | 5 $261 | 6 | |
| 7 | 8 | 9 | 10 $337 | 11 | 12 $341 | 13 |
| 14 | 15 $318 | 16 | 17 | 18 | 19 | 20 |
| 21 | 22 $369 | 23 | 24 $398 | 25 $378 | 26 | 27 $395 |
| 28 $344 | 29 $378 | 30 $401 | 31 |
Empty days: no round trip found for that departure date yet. Green = cheapest third of the month.
Cheapest dates in December 2026
Round trip, per person-
Dec 2 – 9 7 nights · leave Wed$247Vietnam Airlines 1 stop · 7h 00mBook
-
Dec 5 – 8 3 nights · leave Sat$261Vietnam Airlines 1 stop · 6h 55mBook
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Dec 3 – 9 6 nights · leave Thu$262Vietnam Airlines 1 stop · 6h 55mBook
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Dec 2 – 7 5 nights · leave Wed$263Vietnam Airlines 1 stop · 7h 00mBook
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Dec 3 – 7 4 nights · leave Thu$264Vietnam Airlines 1 stop · 6h 55mBook
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Dec 4 – 7 3 nights · leave Fri$269Vietnam Airlines 1 stop · 6h 55mBook
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Dec 2 – 6 4 nights · leave Wed$271Vietnam Airlines 1 stop · 6h 55mBook
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Dec 3 – 6 3 nights · leave Thu$271Vietnam Airlines 1 stop · 6h 55mBook
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Dec 2 – 4 2 nights · leave Wed$272Vietnam Airlines 1 stop · 7h 00mBook
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Dec 4 – 6 2 nights · leave Fri$272Vietnam Airlines 1 stop · 7h 00mBook
Prices change often. The booking site shows the final price before you pay.
Cheapest by trip length
Good to know for December
December vs other months
Cheapest round trip per departure month| Month | Cheapest round trip |
|---|---|
| September 2026 | $282 |
| October 2026 | $228 (cheapest month) |
| November 2026 | $252 |
| December 2026 | $247 |
| January 2027 | $310 |
| February 2027 | $329 |
| March 2027 | $311 |
| April 2027 | $274 |
| May 2027 | No fares found yet |
| June 2027 | $247 |
Seoul to Bangkok in December: questions
What's the cheapest date to fly from Seoul to Bangkok in December 2026?
Leaving Wednesday, December 2 and returning Wednesday, December 9 (7 nights) for $247 round trip on Vietnam Airlines, the cheapest of the 22 date combinations we track that month.
How much is a round trip from Seoul to Bangkok in December 2026?
From $247. Half of the 22 date combinations we track are under $284. Prices are per person in USD and change often.
Is December a cheap month to fly from Seoul to Bangkok?
It ranks 2 of 9 months we have prices for. The cheapest month is October 2026, from $228.