S$727 Cheap Flights from Porto to Singapore

Based on fares listed within the last 7 days on Expedia for flights departing within the next year, round-trip flights from Porto Airport to Changi Airport start from S$1,294. Make your booking ASAP to get the best price for your big adventure. Prices and availability are subject to change. Additional terms apply.

Each air carrier has its own terms and conditions. If you do decide to cancel, follow the easy instructions on our Customer Service Portal.

Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for OPO to SIN flights, you'll see a "no change fees" filter for you to select.

With around 11,800 kilometres separating Maia and Singapore, your flight will be a long one. Pack wisely to make your journey comfortable. Simple things like an extra pair of socks and a good travel pillow should be in your hand luggage.

If you want to travel straight from Dr. Francisco de Sa Carneiro Airport (OPO) to Changi Airport, you'll have to book a flight with one or more stops. Unfortunately, there aren't any airlines that fly directly on this route.

Flight prices fluctuate, so it's no sure thing. While last-minute deals between OPO and Changi Airport (SIN) are possible, it also makes sense to keep track of prices well before you fly. In fact, some air carriers release their prices up to 12 months ahead of the departure date. Expedia is constantly updating the best bargains around, so check back often and be ready to grab your seat when fare prices drop.