S$48 Cheap Flights to Casco

View S$48 flight on Mon, 26 Jan, 2026Opens in a new window

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Cheap round-trip flights to Casco

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Vueling Airlines
Sun, 8 Feb - Wed, 18 Feb
BCN
Barcelona
OPO
Porto
S$86 Return, found 15 hours ago
S$86
Return
found 15 hours ago
Select Vueling Airlines flight, departing Sun, 8 Feb from Barcelona to Porto, returning Wed, 18 Feb, priced at S$86 found 15 hours ago
easyJet
Mon, 16 Mar - Thu, 19 Mar
LTN
London
OPO
Porto
S$121 Return, found 6 days ago
S$121
Return
found 6 days ago
Select easyJet flight, departing Mon, 16 Mar from London to Porto, returning Thu, 19 Mar, priced at S$121 found 6 days ago
Transavia
Sat, 24 Jan - Sun, 1 Feb
AMS
Amsterdam
OPO
Porto
S$209 Return, found 5 days ago
S$209
Return
found 5 days ago
Select Transavia flight, departing Sat, 24 Jan from Amsterdam to Porto, returning Sun, 1 Feb, priced at S$209 found 5 days ago
Iberia
Fri, 9 Jan - Thu, 15 Jan
BCN
Barcelona
OPO
Porto
S$265 Return, found 5 days ago
S$265
Return
found 5 days ago
Select Iberia flight, departing Fri, 9 Jan from Barcelona to Porto, returning Thu, 15 Jan, priced at S$265 found 5 days ago
KLM
Fri, 9 Jan - Thu, 15 Jan
BCN
Barcelona
OPO
Porto
S$304 Return, found 5 days ago
S$304
Return
found 5 days ago
Select KLM flight, departing Fri, 9 Jan from Barcelona to Porto, returning Thu, 15 Jan, priced at S$304 found 5 days ago

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Find Your Flights to Casco OPO

Cheap flights to Casco (OPO)

Get started finding a cheap flight to Casco on Expedia by either choosing a deal on this page or using the search bar to enter your travel dates, origin airport and whether you want a return or one-way airfare. You can filter for flexibility, number of stops, airline and departure/arrival times to find the best flight for you.

We recommend using the ‘Flexible Dates’ calendar at the top of the page to see the price of plane tickets on the surrounding dates. This allows you to pick the cheapest days to fly if your trip allows flexibility and score cheap flight deals to Casco.

Return prices range from S$86 - S$874 and one-ways Casco start as low as S$48.

Be aware that choosing a non-stop flight can sometimes be more expensive while saving you time. And routes with connections may be available at a cheaper rate.

 

Airlines that fly to Casco (OPO)

You have several options for which airline you choose to travel with to Casco. There are 10 airlines flying into OPO: easyJet, Vueling Airlines, Air Europa, TAP Portugal, Iberia, Transavia, KLM. 

Cheap plane tickets may be available from different airlines at different times and with unique terms. It’s best to understand the details of each airline’s offer before judging its value.

For example, if you plan to check in a bag or bring hand baggage, it's worth checking whether the cheap airfare deal includes a baggage allowance. If not, verify whether the baggage fee is higher than the difference of other airline plane ticket deals offering free checked in/hand baggage in exchange for a slightly higher airfare. 

Additionally, your preferred frequent flyer membership programmes may influence your choice of cheap airline. Expedia allows you to enter your membership numbers during checkout to earn points from your airline and Expedia Rewards—all while getting a great deal and planning all your travel on one online platform.

 

Find the best deals

At Expedia, we source many flight deals from multiple providers, so you can easily find the best deals that are right for you. A great strategy for getting the best deals can be to make sure you book and travel at optimal times. Airfare to Casco (OPO) varies throughout the year based on seasonal demand. You’ll see the lowest rates for return trips to OPO in February and in January for one-ways.

 

Cancellation & flexibility

To change or cancel eligible flights, go to ‘My Trips’ and navigate to your itinerary. If you booked within the last 24 hours, you might be able to cancel your flight for free. Learn more about flight changes or cancellations from our customer service portal. Some plane tickets are available with no change fees, which you can filter for during your search.

Frequently asked questions

What is the name of Casco's airport?
Organise a flight to Casco with Expedia and you'll be stepping off the plane at Dr. Francisco de Sa Carneiro Airport (OPO).
What airport is best to fly into Casco?
With one main airport in Casco, it won't take you too long to discover the best flight. You'll be taking off to Porto Airport, which is located around 72 kilometres from the downtown area.
How many airlines fly to Casco?
There are 32 air carriers that fly to Casco from 82 airports across the globe.
Which airlines fly to Casco?
Air Europa and Iberia operate the most flights to Casco. One of the most common ways to travel there is on an Air Europa flight leaving from Madrid.
How many nonstop flights are there to Casco?
With around 757 direct flights operating every week, you'll be hitting the runway in Casco before you have time to say, "Are we there yet?"
Where are the most popular flights to Casco departing from?
Flights to Casco from Madrid, Paris and Lisbon District airports are the most sought after.
How long is the flight to Casco Airport?
If you're heading to Casco from Madrid, you're looking at a flight time of 1 hour and 17 minutes. Those departing from Paris can expect to be on the plane for 2 hours and 15 minutes. From Lisbon District it's around 59 minutes away.
How to book the cheapest flight to Casco?
If you'd like to have some extra spending money on your Casco holiday, listen up! As any experienced traveller knows, avoid booking at the last minute. Airfares are usually highest close to the departure date. Also, do some online research and compare your options. If your destination has multiple airports, you may be able to nab a fantastic price by flying into a smaller terminal. And finally, remember that the early bird catches the worm. Know what a typical airfare costs and be ready to secure your seat as soon as you see a great bargain. The sweetest deals never last long.
Do you have any tips for my flight to Casco?
Wherever you're jetting in from, flying can be an enjoyable experience if you've prepared well. We've put together a list of handy tips that will help get your Casco holiday started on the right foot. What to pack in your hand luggage:

  • The trick to having a hassle-free flight experience is to pack ahead. First up, the essentials: passport, travel documents, credit cards and vital medications. Next, bring on board items that'll help keep you occupied, like your laptop or a few magazines. It's also wise to pack your chargers, a quality neck pillow and a pair of headphones. Last but not least, be sure to pop in toiletries like a toothbrush, lip balm and a fresh change of clothes.

Do not pack the following items in your hand luggage:

  • While the list of restricted items can differ between airlines, the general rule to follow is avoid carrying anything sharp, flammable or explosive. This includes box cutters, razor blades, fireworks and fuel. Sporting equipment like bows and arrows, and items that could harm passengers, such as swords and batons, can't come on board with you either.

What to wear on a flight:

  • The aisles of an aircraft aren't the place for a fashion parade. Wear layers and opt for shoes that are closed-toe, flat and easy to take on and off.
  • Deep vein thrombosis (DVT) is a risk on long-haul flights. It's the result of blood clotting due to poor circulation, so do some gentle leg and foot exercises in your seat and consider wearing compression tights or socks.

How to get through airport security fast when flying to Casco?
The trick is to be well prepared before you arrive at airport security. That way, you'll be hopping onto that plane to Casco before you know it. Follow these helpful tips and get your holiday off to a spectacular start:

  • Security personnel first need to establish that you have a valid passport and matching boarding pass before anything else. Have them within easy reach, ready for inspection.
  • The X-ray machine comes next. Empty your pockets and remove anything that is likely to beep. This includes things like headphones or earphones, as well as heavy coats or jackets. They'll all need to go on the X-ray conveyor belt.
  • All your electronic gadgets, including your laptop and phone, must also be scanned separately.
  • Travelling with a new perfume? As long as the volume is no greater than 3.4 ounces (100 millilitres) and it's stored in a zip-lock bag, you can bring it with you in your carry-on.
  • There's a chance you'll be asked to take your shoes off for scanning, so wearing lightweight sneakers is always a smart idea.
  • Take all prohibited items out of your carry-on bag. If you have any sharp objects like a pocket knife or tools, pack them in your checked baggage. They won't be allowed on board.

Flights to Casco information
Destination airport
Dr. Francisco de Sa Carneiro
Destination airport IATA code
OPO
Destination city name
Porto
Return price
S$85

Trending flights to Casco

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Etihad Airways
Wed, 11 Feb - Wed, 25 Feb
SIN
Singapore
OPO
Porto
S$874 Return, found 1 day ago
S$874
Return
found 1 day ago
Select Etihad Airways flight, departing Wed, 11 Feb from Singapore to Porto, returning Wed, 25 Feb, priced at S$874 found 1 day ago
*Available to Expedia members.