#cheap flights singapore september 2026

Trip.com Singapore's 9.9 Mega Sale runs from 9 to 12 September 2026, and its own terms page (promotion ID SG-47083) fixes the window at Singapore time, both dates inclusive. The number in the page title, S$199 off, is real but it is not a general coupon: Trip.com's own 9.9 cheat sheet puts it on Business and First Class flights only, and gives the same S$199 as a daily voucher to DBS and POSB cardholders. The flight coupon an economy booker can actually use is S$69 off a minimum spend of S$700, which is 9.9% on the smallest qualifying booking, or a 9% code capped at S$30. Almost every headline number on this page also drops at a clock time rather than a date: the S$69 and S$109 coupons release at 12AM, the S$399 nett Singapore to Beijing flash fare at 9AM, the S$199 nett Singapore to Manila fare at 1PM, and JB hotels from S$39 a night at 3PM. All of the flash sales are app-only by Trip.com's own terms, so a desktop browser cannot reach them at all, and the overseas hotel flash price is capped at a two-night stay. Only 9 September carries the full coupon stack. From 10 to 12 September what is left is the daily run of 4PM attractions, 5PM China tours and a 7PM new-user hotel voucher, plus the DBS and POSB vouchers at midnight.

Cathay Pacific turned 80 on 1 September and put its whole Singapore route map on sale for the month: round-trip all-in economy fares from S$354 to Hong Kong, S$424 to Beijing, S$727 to Tokyo, S$1,209 to Los Angeles, San Francisco or Seattle, and S$1,221 to ten European cities including Paris and Rome. Taxes and surcharges are already inside those numbers. The part almost every repost blurs is that there are two different deadlines. The fares themselves sell from 1 to 30 September for travel all the way to 31 August 2027. The two member promo codes that make them genuinely cheap, CX80SG for S$80 off and CX80SGLH for S$138 off, only sell from 1 to 15 September, only cover travel between 15 September and 10 December 2026, and are capped by transaction count: 500 for the short-haul code and just 50 for the long-haul one. The counter-intuitive bit is that the smaller code is the better deal. S$80 off a S$354 Hong Kong return is 23 percent off; S$138 off a S$1,209 US west coast return is 11 percent.