S$609 Cheap Flights from Porto to Singapore

View S$609 flight on Tue, 21 Apr, 2026Opens in a new window

Popular airlines from Porto Airport (OPO) to Singapore Changi Airport (SIN)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 40% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Porto to Singapore (OPO-SIN)

Prices were available within the past 7 days and start at S$609 for one-way flights and S$1,093 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Swiss International Air Lines
Tue, 1 Sept - Wed, 30 Sept
OPO
Porto
SIN
Singapore
S$1,093 Return, found 5 days ago
S$1,093
Return
found 5 days ago
Select Swiss International Air Lines flight, departing Tue, 1 Sept from Porto to Singapore, returning Wed, 30 Sept, priced at S$1,093 found 5 days ago
Swiss International Air Lines
Tue, 1 Sept - Wed, 30 Sept
OPO
Porto
SIN
Singapore
S$1,146 Return, found 5 days ago
S$1,146
Return
found 5 days ago
Select Swiss International Air Lines flight, departing Tue, 1 Sept from Porto to Singapore, returning Wed, 30 Sept, priced at S$1,146 found 5 days ago
Etihad Airways
Mon, 18 May - Tue, 30 Jun
OPO
Porto
SIN
Singapore
S$1,183 Return, found 6 days ago
S$1,183
Return
found 6 days ago
Select Etihad Airways flight, departing Mon, 18 May from Porto to Singapore, returning Tue, 30 Jun, priced at S$1,183 found 6 days ago
Etihad Airways
Tue, 1 Sept - Wed, 30 Sept
OPO
Porto
SIN
Singapore
S$1,190 Return, found 5 days ago
S$1,190
Return
found 5 days ago
Select Etihad Airways flight, departing Tue, 1 Sept from Porto to Singapore, returning Wed, 30 Sept, priced at S$1,190 found 5 days ago
Lufthansa
Sat, 21 Nov - Mon, 11 Jan
OPO
Porto
SIN
Singapore
S$1,190 Return, found 2 days ago
S$1,190
Return
found 2 days ago
Select Lufthansa flight, departing Sat, 21 Nov from Porto to Singapore, returning Mon, 11 Jan, priced at S$1,190 found 2 days ago
Etihad Airways
Mon, 18 May - Tue, 30 Jun
OPO
Porto
SIN
Singapore
S$1,200 Return, found 6 days ago
S$1,200
Return
found 6 days ago
Select Etihad Airways flight, departing Mon, 18 May from Porto to Singapore, returning Tue, 30 Jun, priced at S$1,200 found 6 days ago
Lufthansa
Sat, 21 Nov - Mon, 11 Jan
OPO
Porto
SIN
Singapore
S$1,220 Return, found 2 days ago
S$1,220
Return
found 2 days ago
Select Lufthansa flight, departing Sat, 21 Nov from Porto to Singapore, returning Mon, 11 Jan, priced at S$1,220 found 2 days ago
Air Europa
Thu, 14 May - Wed, 20 May
OPO
Porto
SIN
Singapore
S$1,226 Return, found 4 days ago
S$1,226
Return
found 4 days ago
Select Air Europa flight, departing Thu, 14 May from Porto to Singapore, returning Wed, 20 May, priced at S$1,226 found 4 days ago
Swiss International Air Lines
Sat, 21 Nov - Mon, 11 Jan
OPO
Porto
SIN
Singapore
S$1,227 Return, found 2 days ago
S$1,227
Return
found 2 days ago
Select Swiss International Air Lines flight, departing Sat, 21 Nov from Porto to Singapore, returning Mon, 11 Jan, priced at S$1,227 found 2 days ago
Qatar Airways
Thu, 8 Oct - Wed, 14 Oct
OPO
Porto
SIN
Singapore
S$1,314 Return, found 7 hours ago
S$1,314
Return
found 7 hours ago
Select Qatar Airways flight, departing Thu, 8 Oct from Porto to Singapore, returning Wed, 14 Oct, priced at S$1,314 found 7 hours ago

Frequently asked questions

How much is a flight from Porto Airport to Singapore Airport?
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$1,093. Make your booking ASAP to get the best price for your big adventure. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Dr. Francisco de Sa Carneiro Airport (OPO) to Changi Airport (SIN)?
Each air carrier has its own terms and conditions. If you do decide to cancel, follow the easy instructions on our Customer Service Portal.
How do I find cheap flights from Porto Airport to Singapore Airport that have flexible change policies?
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.
How far is the flight from OPO to Changi Airport (SIN)?
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.
Which airlines fly direct from Dr. Francisco de Sa Carneiro Airport (OPO) to Changi Airport (SIN)?
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.
Are Porto Airport to Changi Airport flight tickets cheaper when they're purchased at the last minute?
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.

Travel information

Origin airport
Dr. Francisco de Sa Carneiro
Destination airport
Changi
Airlines serving
Air France, Austrian Airlines, British Airways, Ethiopian Airlines, Etihad Airways, Finnair, KLM, Lufthansa, Qatar Airways, Swiss International Air Lines, Turkish Airlines
Return price
S$1,092
Distance
11707 km

Explore a world of travel with Expedia

*Available to Expedia members.