AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Singapore (SIN) in September 2025 (see full year).
Return flights
| 09 Sep - 16 Sep | Frontier Airlines | ||
| 01 Sep - 10 Sep | Frontier Airlines |
Also check the deals for one-way flights from Raleigh-durham to Singapore in September.
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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