Cheap Flights from Porto (OPO) to Liege (LGG)

Popular airlines from Porto Airport (OPO) to Liege (LGG)

Frequently asked questions

How much does a flight from Dr. Francisco de Sa Carneiro Airport (OPO) to Liege Airport (LGG) cost?
Secure a cheap one-way flight or cheap return flight from Dr. Francisco de Sa Carneiro Airport (OPO) to Liege Airport (LGG) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Dr. Francisco de Sa Carneiro Airport (OPO) to Liege Airport (LGG)?
Traveling in can help you save, as it's the cheapest month for flights between OPO and LGG. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from Dr. Francisco de Sa Carneiro Airport (OPO) to Liege Airport (LGG)?
To find the cheapest airline flying from OPO to LGG, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Dr. Francisco de Sa Carneiro Airport (OPO) to Liege Airport (LGG)?
There are no daily direct flights from Dr. Francisco de Sa Carneiro Airport (OPO) to Liege Airport (LGG). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from OPO to LGG?
Typically you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* But this can vary based on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Dr. Francisco de Sa Carneiro Airport (OPO) to Liege Airport (LGG)?
To avoid possible delays on the Dr. Francisco de Sa Carneiro Airport (OPO) to Liege Airport (LGG) route, aim to fly before 3 PM. Later departures have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Dr. Francisco de Sa Carneiro Airport (OPO) to Liege Airport (LGG) last-minute?
Last-minute bookings from OPO to LGG are generally more expensive. For the lowest prices, start looking for flights as soon as possible. That said, if you're flexible with your travel plans, it's possible to score a cheap fare right before your trip.
Is it cheaper to book an OPO to LGG flight and hotel package?
Compared with arranging flights and hotels separately, booking an OPO to LGG flight and hotel package with Expedia could lead to significant savings. Better still, managing everything in one place takes the hassle out of travel planning. Simply secure your flights and select from our extensive range of hotels, then customize your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Dr. Francisco de Sa Carneiro Airport (OPO) to Liege Airport (LGG)?
If you booked your OPO to LGG flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you want more information.

Travel information

Origin airport
Dr. Francisco de Sa Carneiro
Destination airport
Liege
Distance
936 mi

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Porto to Liege Flights

The cheapest times to fly from Porto to Liege

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Porto to Liege are during the month of . You can find some of the cheapest flights from Porto to Liege with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Porto to Liege

Sunday is one of the best days to book for cheap flights from Porto to Liege: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Porto to Liege

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Porto to Liege in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Porto to Liege flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Porto to Liege airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Porto to Liege Flights

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*Available to One Key members.