Seoul to Osaka in December 2026
SEL to OSA · 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 | 2 $165 | 3 $174 | 4 | 5 $170 | 6 | |
| 7 | 8 $150 | 9 | 10 | 11 $199 | 12 | 13 |
| 14 | 15 | 16 | 17 | 18 | 19 $184 | 20 |
| 21 $203 | 22 | 23 $146 | 24 $380 | 25 | 26 | 27 |
| 28 | 29 | 30 | 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 23 – Jan 10, 2027 18 nights · leave Wed$146T'way Air Nonstop · 1h 55mBook
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Dec 8 – 15 7 nights · leave Tue$150Peach Nonstop · 1h 45mBook
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Dec 2 – 9 7 nights · leave Wed$165Peach Nonstop · 1h 45mBook
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Dec 5 – 16 11 nights · leave Sat$170Air Seoul Nonstop · 1h 40mBook
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Dec 5 – 9 4 nights · leave Sat$173Air Seoul Nonstop · 1h 40mBook
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Dec 3 – 8 5 nights · leave Thu$174Jin Air Nonstop · 1h 45mBook
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Dec 3 – 10 7 nights · leave Thu$178Air Seoul Nonstop · 1h 40mBook
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Dec 3 – 7 4 nights · leave Thu$182Jin Air Nonstop · 1h 45mBook
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Dec 19 – 22 3 nights · leave Sat$184Air Seoul Nonstop · 1h 40mBook
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Dec 11 – 15 4 nights · leave Fri$199Jeju Air Nonstop · 1h 50mBook
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 |
|---|---|
| October 2026 | $135 (cheapest month) |
| November 2026 | $152 |
| December 2026 | $146 |
| January 2027 | $181 |
| February 2027 | $174 |
| March 2027 | $167 |
| April 2027 | $320 |
| May 2027 | $281 |
| June 2027 | No fares found yet |
| July 2027 | $337 |
| August 2027 | $275 |
| September 2027 | $305 |
Seoul to Osaka in December: questions
What's the cheapest date to fly from Seoul to Osaka in December 2026?
Leaving Wednesday, December 23 and returning Sunday, January 10 (18 nights) for $146 round trip on T'way Air, the cheapest of the 13 date combinations we track that month.
How much is a round trip from Seoul to Osaka in December 2026?
From $146. Half of the 13 date combinations we track are under $178. Prices are per person in USD and change often.
Is December a cheap month to fly from Seoul to Osaka?
It ranks 2 of 11 months we have prices for. The cheapest month is October 2026, from $135.