Cheapest return flights from Houston to Singapore in December from $1103

AirHint found the following cheapest return flights from Houston (IAH) to Singapore (SIN) in December 2025 (see full year).

Return flights

07 Dec - 14 Dec Turkish Airlines
07 Dec - 10 Jan Spirit Airlines
07 Dec - 28 Dec Turkish Airlines
11 Dec - 26 Dec Zipair
11 Dec - 28 Dec Zipair
11 Dec - 29 Dec United
12 Dec - 19 Dec Spirit Airlines
15 Dec - 07 Jan Spirit Airlines
13 Dec - 28 Dec Spirit Airlines
07 Dec - 09 Jan Turkish Airlines
03 Dec - 10 Jan Air Canada
20 Dec - 04 Jan Frontier Airlines
20 Dec - 31 Dec IndiGo
21 Dec - 03 Jan Spirit Airlines
19 Dec - 04 Jan Spirit Airlines
19 Dec - 03 Jan Spirit Airlines
20 Dec - 01 Jan Qatar Airways
21 Dec - 04 Jan EVA Air

Also check the deals for one-way flights from Houston to Singapore in December.

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