Cheap Flights from Glasgow Intl to Porto

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Compare Glasgow Intl to Porto flight deals

Find the cheapest month or even day of the year to fly to Porto

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Flight deals from Glasgow Intl to Porto

Looking for a cheap last-minute deal or the best return flight from Glasgow Intl to Porto? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Glasgow Intl to Porto

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Glasgow Intl to Porto flights are currently cheapest in October.

Direct flights from Glasgow Intl to Porto

Glasgow Intl to Porto: Alternative routes

Compare routes from Glasgow Intl to Porto below. You may find an airport to fly into that's cheaper, faster, or easier than Porto.

Glasgow to Porto: Flight information

The things to know before you go.
Cheapest flight foundR 653
Cheapest month to flyOctober
Average flight time2 hrs, 45 mins
Most popular airlineeasyJet
Average flights per week2

Finding cheap flights from Glasgow Intl to Porto: Frequently asked questions

The best price we found for a return flight from Glasgow Intl to Porto is R 2,098. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 45 minutes is the average flight time from Glasgow Intl to Porto.
easyJet flies direct from Glasgow Intl to Porto.
As of June 2025, there are 2 flights per week flying from Glasgow Intl to Porto.
The cheapest month to fly from Glasgow Intl to Porto is usually June 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Glasgow Intl Airport to Porto Airport on Friday, 15 May 2026.
Yes – the average flight time is 2 hours and 45 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Porto but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Porto is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, easyJet offers the cheapest flight tickets to Porto.

Flying from Glasgow International Airport (GLA) to Porto Airport (OPO): what you need to know

  • Hop on a direct flight from Glasgow International Airport to Porto Airport and you'll be in the air for an average of 2 hours 45 minutes.

  • Glasgow and Porto are both in the UTC+0 timezone. This means you won't have to change your watch when you arrive.

  • Give yourself plenty of time to catch your GLA to OPO flight. As a general rule, turn up two hours before international departures and an hour ahead for domestic flights.

  • Travelling during a peak time like June? School holidays and other high seasons can mean longer lines and delays at security. Be extra cautious and arrive up to four hours ahead of international flights and two hours before a domestic departure.

  • EasyJet has direct flights from Glasgow International Airport to Porto Airport. Book with this popular airline, then get ready to discover the sights in Porto — and maybe even more of Portugal if time allows.

  • The airline most travellers prefer to fly with on this route is easyJet.

  • We make it a breeze to book a flight with a stopover. To see all your options for tickets from Glasgow International Airport to Porto Airport, deselect 'Direct flights only.' Then, pick a flight offering a stop long enough to visit your chosen city. Some great stopovers between GLA and OPO include:

    • Bordeaux Airport

    • London Gatwick Airport

    • Amsterdam Airport Schiphol

How to find the cheapest flights from Glasgow International Airport (GLA) to Porto Airport (OPO)

  • Right now, R 653 is the cheapest price we've found for a one-way Glasgow International Airport to Porto Airport flight. The best price for a return ticket is R 2,098. Remember that fares can change due to availability when booking.

  • Book 11 months before flying. After crunching the numbers on our calendar, this is how far you should book ahead to find cheap tickets from GLA to OPO.

  • Schedule your trip for October. That's the cheapest month for flights from Glasgow International Airport to Porto Airport. If your travel dates are flexible, use the 'Whole month' tool to find the lowest price across each month.

  • Spend less time searching for cheap flights from GLA to OPO by creating a Price Alert. You'll get an email or notification on the app when a lower fare pops up.

  • Select your preferred departure and arrival times, number of stops and airlines with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from Glasgow International Airport to Porto Airport.

Handy information about Glasgow International Airport (GLA)

  • When it comes to Glasgow International Airport's on-time performance, data shows 70.07% of flights arrive within the expected timeframe.

  • Central Glasgow to Glasgow International Airport is around 14 kilometres. Depending on traffic, it'll take you about 15 minutes to get there if you're ride-sharing, catching a cab or driving.

  • You can expect a journey time of roughly 35 minutes when using public transport.

  • Looking for a convenient hotel close to GLA? If you're catching an early flight from Glasgow International Airport to Porto Airport, these stays will put you moments from check-in:

Arriving at Porto Airport (OPO)

Getting from Porto Airport (OPO) to central Porto

  • Porto Airport to the centre of Porto has a drive time of around 20 minutes. It's approximately 16 kilometres away.

  • It typically takes 50 minutes if you're travelling on public transport.

When to fly to Porto Airport (OPO)

  • August is the most popular month for flights from Glasgow International Airport to Porto Airport. To steer clear of the crowds, travel to Porto in January.

  • The warmest month in Porto is August, with the temperature ranging between 14ºC (57ºF) and 32ºC (90ºF). Book your flights from Glasgow International Airport to Porto Airport in this month if this is the type of weather you enjoy.

  • If you'd rather travel in cooler conditions, search for a cheap ticket from GLA to OPO in January. Temperatures average between 3ºC (37ºF) and 14ºC (57ºF) then.

Explore more of Portugal

  • You've seen Porto, now it's time to explore other parts of Portugal. Travel about 274 kilometres south to Lisbon to check off its must-visit sights. From Torre de Belem Garden to Estrela At Lisbon - Tram 28 and Archaeological museum of Sao Jorge Castle, you'll have a full itinerary ahead.

  • Amadora is another sought-after destination in Portugal and is around 274 kilometres south of Porto. No journey is complete without dropping by Jardim Porta do Viveiro Alfragide, Jardim Caracol do Victor Alfragide and Jardim e estatua Eduardo Jorge.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.