London 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 $499 | 2 $517 | 3 | 4 $543 | 5 $556 | 6 $545 | |
| 7 $542 | 8 | 9 $711 | 10 $771 | 11 $694 | 12 | 13 $775 |
| 14 $819 | 15 | 16 | 17 $871 | 18 $1,062 | 19 $1,227 | 20 |
| 21 | 22 | 23 | 24 $1,073 | 25 $1,189 | 26 $940 | 27 $954 |
| 28 | 29 | 30 $906 | 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 1 – 12 11 nights · leave Tue$499Air China 1 stop · 15h 55mBook
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Dec 2 – 16 14 nights · leave Wed$517China Southern Airlines 1 stop · 14h 55mBook
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Dec 1 – 6 5 nights · leave Tue$528Air China 1 stop · 15h 55mBook
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Dec 7 – 21 14 nights · leave Mon$542Air China 1 stop · 15h 05mBook
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Dec 4 – 18 14 nights · leave Fri$543Air China 1 stop · 14h 20mBook
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Dec 6 – 20 14 nights · leave Sun$545Air China 1 stop · 15h 10mBook
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Dec 4 – 16 12 nights · leave Fri$548Air China 1 stop · 14h 20mBook
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Dec 1 – 15 14 nights · leave Tue$556Air China 1 stop · 15h 10mBook
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Dec 5 – 19 14 nights · leave Sat$556Air China 1 stop · 15h 10mBook
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Dec 4 – 6 2 nights · leave Fri$684Air China 1 stop · 14h 20mBook
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 | No fares found yet |
| October 2026 | $574 |
| November 2026 | $466 (cheapest month) |
| December 2026 | $499 |
| January 2027 | No fares found yet |
| February 2027 | No fares found yet |
| March 2027 | $471 |
| April 2027 | No fares found yet |
| May 2027 | $558 |
| June 2027 | $608 |
| July 2027 | $1,014 |
London to Bangkok in December: questions
What's the cheapest date to fly from London to Bangkok in December 2026?
Leaving Tuesday, December 1 and returning Saturday, December 12 (11 nights) for $499 round trip on Air China, the cheapest of the 32 date combinations we track that month.
How much is a round trip from London to Bangkok in December 2026?
From $499. Half of the 32 date combinations we track are under $845. Prices are per person in USD and change often.
Is December a cheap month to fly from London to Bangkok?
It ranks 3 of 7 months we have prices for. The cheapest month is November 2026, from $466.