AirHint found the following cheapest return flights from Chiang Rai (CEI) to Singapore (SIN) in July 2025 (see full year).

Return flights

24 Jul - 05 Aug	Thai AirAsia
27 Jul - 17 Aug	Thai AirAsia
27 Jul - 05 Aug	Thai AirAsia
22 Jul - 05 Aug	Thai AirAsia
24 Jul - 02 Aug	Thai AirAsia
23 Jul - 05 Aug	Thai AirAsia
27 Jul - 02 Aug	Thai AirAsia
22 Jul - 02 Aug	Thai AirAsia
23 Jul - 02 Aug	Thai AirAsia
25 Jul - 05 Aug	Thai AirAsia
24 Jul - 31 Jul	Thai AirAsia
27 Jul - 31 Jul	Thai AirAsia
22 Jul - 31 Jul	Thai AirAsia
23 Jul - 31 Jul	Thai AirAsia
25 Jul - 31 Jul	Thai AirAsia
28 Jul - 31 Jul	Thai AirAsia
24 Jul - 25 Jul	Thai AirAsia
22 Jul - 24 Jul	Thai AirAsia
23 Jul - 24 Jul	Thai AirAsia
22 Jul - 25 Jul	Thai AirAsia

Also check the deals for one-way flights from Chiang Rai to Singapore in July.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Chiang Rai to Singapore in July from 277€

Return flights