August is the cheapest month to fly this route, with average fares around $133 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $187 | $165 | Peak | |
| June 2026 | $183 | $161 | ||
| July 2026 | $144 | $128 | ||
| August 2026 | $133 | $128 | Best |
Departing on Wednesday offers the lowest average fares at $158. Friday departures are the most expensive at $170, a difference of $12.
The best time to fly is August. Set up an alert and we'll notify you when prices drop.
Get Started Free →The cheapest month to fly from Singapore to Jakarta is August, with average round-trip fares around $133. The lowest fare found in August is $128.
Wednesday departures are the cheapest, averaging $158 round trip. The most expensive day is Friday at $170.
Based on current pricing trends, booking for August travel offers the best value. Avoid May if possible, as fares average $187 compared to $133 in the cheapest month. June is a solid middle-ground option at $183.
Flying in August instead of May can save you approximately $54 per round trip. The cheapest month averages $133 while the most expensive averages $187.
Airlines, flight times, price calendar, and more for Singapore to Jakarta
View SIN → CGK Details