Cheap flights from Klagenfurt to Porto

Start with the weeks on either side of April, then take April itself if the dates suit you, since that is the cheapest month shown for this route. School holiday weeks, Christmas travel, and the destination's summer peak are the classic high-demand periods, so move your dates by a few days if you can. If your trip falls in November, December, May, August, September or October, compare the calendar day by day, because the better value can sit a week apart. Booking early once your dates are fixed usually leaves you the widest choice of nonstop and connecting options. If a public holiday lands in your chosen week, treat it as a peak and keep changes flexible.

Connections on this route add a stop, a second security or check-in step, and a longer total time, so weigh that against any lower fare. Ryanair, Austrian and Eurowings are the airlines named for this route, with both nonstop and connecting options depending on the day. Their ticket rules are not the same: compare baggage, seat selection, boarding priority and change fees like for like before you pay. If two carriers are involved on one journey, check whether it is one ticket or two, because that changes who is responsible if a flight is delayed.

Arriving late changes the first evening in Porto: the centre is reachable on public transport while services run, but miss the last departure and you are paying for a taxi or staying near the airport. Porto's airport sits outside the historic centre and is usually reached by metro, bus or taxi, with the metro the simplest option for most central neighbourhoods. Check which terminal you land at, allow time for baggage reclaim, and confirm transport is running before you commit to a very late arrival. If you are travelling onward elsewhere in Portugal the same night, leave extra transfer time rather than assuming a quick connection.

Currency

EUR (€)

Power sockets

Type C, F · 230 V

Language

Portuguese

Emergency number

112

Driving side

right

Calling code

+351

Internet domain

.pt

EU / Schengen

EU member, Schengen area

Population of Porto

232 k (2021)

Time zone

UTC+00 (Europe/Lisbon)

Country facts: Wikidata

• Check that your passport or national ID card is valid for Portugal and for your whole stay.
• Make sure the departure airport is Klagenfurt Airport, not another Austrian airport, before you pay.
• Compare baggage rules and seat fees against the base fare, especially on low-cost tickets.
• If you mix two airlines on separate tickets, leave enough time to collect bags and check in again.
• Look at dates around April, and avoid peak weeks if your plans are flexible.
• Check that your arrival time still works for transport into Porto before you confirm a late flight.