$40 Find Cheap Flights from Portugal to Belgium - Compare and Save

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KAYAK's insights & trends for flights to Belgium

Get data-powered insights and trends for flights to Belgium to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Belgium?

The cheapest ticket to Belgium from Portugal found in the last 5 days was to Brussels Bruxelles-National Airport, at $110 round-trip. The most popular route is Faro (FAO) to Brussels Bruxelles-National Airport (BRU) and the cheapest round-trip airline ticket found on this route in the last 5 days was $110.

How much is a flight to Belgium?

A flight to Belgium costs $214 on average. The cheapest price found on KAYAK in the last 2 weeks was $35 for the route Porto (OPO) to Brussels Bruxelles-National Airport (BRU). The most popular routes on KAYAK are Porto to Brussels which costs $231 on average, and Lisbon to Brussels, which costs $202 on average.

See prices from:

What is the cheapest month to fly from Portugal to Belgium?

The cheapest month for flights from Portugal to Belgium is December, when tickets cost $101 (return) on average. On the other hand, the most expensive months are August and September, when the average cost of round-trip tickets is $212 and $182 respectively.

What is the cheapest time of day to fly to Belgium?

The cheapest time of day to fly to Belgium is generally in the evening, when round-trip flights cost $178 on average. Morning departures are around 54% more expensive than evening flights, on average. The most expensive time of day to fly to Belgium is generally at night, which is peak travel time and where the average cost of a ticket is $301.

How far in advance should I book a flight from Portugal to Belgium?

To get a below average price on the flight from Portugal to Belgium, you should book around 5 weeks before departure, which saves you about 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Which is the cheapest airport to fly into in Belgium?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Belgium is Charleroi Brussels Airport (CRL), with an average flight price of $121.

Good to know

Low season

August
Best time to beat the crowds but there is an average 27% increase in price.
Most popular time to fly and prices are also 4% lower on average.

FAQs for booking flights from Portugal to Belgium

  • How does KAYAK find such low prices on flights from Portugal to Belgium?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portugal to Belgium.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portugal to Belgium?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portugal to Belgium is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portugal to Belgium?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Portugal to Belgium with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portugal to Belgium?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Portugal to Belgium up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Belgium?

    Based on KAYAK data, the cheapest day to fly to Belgium is Wednesday where round-trip tickets can be as cheap as $219. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $607 on average.

Reviews of the top 3 airlines serving from Portugal to Belgium

 
Need help choosing which airline to fly with from Portugal to Belgium? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
Brussels AirlinesOverall score based on 438 reviews
7.4Boarding
6.4Food
7.9Crew
6.2Entertainment
7.1Comfort
Airline reviews

Luggage delayed and delivers 24 hours later … broken. No resolution… no response. We don’t have a suitcase for the rest of our 2 week trip

2.0 MediocreAnonymous, Sep 2026
Read more Brussels Airlines reviews

Luggage delayed and delivers 24 hours later … broken. No resolution… no response. We don’t have a suitcase for the rest of our 2 week trip

It was great like always had all my 3 luggage and I got to my destination safely

Everything was better but france airlines more better than them

Good leg room for people of all sizes. Pleasent crew.

WE didint profit of food , but for the other think all was good

Spacious and clean aircraft. Good food. Economy will always be squeezed but thankfully I had an aisle seat for stretching exercises. Good selection of movies, particularly Spike Lee joint.

Unfriendly, 8 hours delayed, no lounge access even flying business. Don’t fly Brussels

Flight from London was delayed so missed the connecting flight. Taking 2 days to get to destination which should have only taken a few hours.

Suitcase didn’t arrive to Stockholm. Chairs y comfy and not even water is offered

Boarding time was a bit slow causing the flight to not leave right at 5 pm,but other than that it was fine.

food was terrible on the plane, bring your own food, its not worth eating.

I feel like the boarding process could be a little better. But the staff and everyone does a really great job.

Flight was good. Would be great if we had free WiFi

Flight was late, and not sure why. The business class lounge in Porto is not proprietary to TAP, and is really substandard, almost as bad as "The Lounge" in Boston. It was a D, which is better than the F experience in Bostonm where we left "The Lounge" for a better experience in the terminal. It had better food (an extremely low bar), ok beverages, and wasn't as crowded as the Boston one, but no restrooms. To use one, you had to leave and go downstairs. There's no down escalator, and the elevator might be able to crowd 4 people. Otherwise, you're carying your bags down the stairs. I hope the Lisbon club is better, but for TAP to provide this in the 2nd largest city in the home country is disappointing. They put out an announcement to proceed immediately to the gate, but there was no plane and few seats. from the lounge, 8 people with bags waited in line for the single tiny elevator. After almost an hour of standing, we finally boarded. TAP, at least on this plane, doesn't offer a welcome drink to business class passengers. Having said that, the crew was very friendly and accomodating. We landed about an hour late and then were told we were going to be on the runway for at least a half hour because no gate was available. So, bottom line, D- for pre boarding, A for flight attendents, B + for business class food, and Incomplete for post landing.

Special meal AVML was terrible Move selections were mediocre No Wi-Fi offered

On time. Good meal. Overhead cabin lights inop in entire cabin. Seat recliner did not work.

Excellence’s Class booked and we had to wait 15 Hours when we could downgrade to an earlier flight. The logic makes No sense?

Flight was ready to depart on time. We had a 20-minute ATC hold. We still landed on time. The landing seemed fast and rough.

The cabin crew was very courteous, professional, and courteous. Great service!

Didn't get to go because connection flight was cancelled

All went smoothly. Got assisted travel which was easily arranged and delivered.

The airline gets you from one place to another in a reasonable time. Not much more you can expect.

Easy short trip from Faro to Cardiff. Exceptional staff. Early landing and straight through airport in 15 minutes from touch down.

Guide passenger if fhey board from front or back door cause it was a total mess

Nothing unexpected considering it is a Ryanair flight. It does the job. Nothing above, at all.

I didn't know that all connecting flights require online check-in two hours in advance, so I was fined 55 euros. This is a lesson learned.

There isn’t any entertainment. The food and drink was available for a price. I didn’t buy any.

Flight was over an hour late. Boarding was really messy with long queues at the plane.

Their customer service needs an overhaul. I wish we could access them and the could be more helpful. Also, the website has been crashing and I had numerous technical errors. My flight was cancelled and we spent so much time trying to get help because the tech was failing.

It is what you pay for. Always delayed. Very small planes. Hard to fly with kids.

More options for your flight to Belgium

Complete your trip to Belgium with a hotel stay or car rental