Short answer: FlixBus is expanding its cross-border Portugal–Spain network for summer 2026 with three new coach corridors. A new Madrid–Braga service via Porto runs from €14.99 with two daily departures, a new Lisbon–Badajoz line via Setúbal, Évora and Elvas starts from €8.49, and the domestic Porto/Viseu–Covilhã route through Guarda opens the Serra da Estrela mountains with one-way fares from €4.99. The lines were announced in June 2026 and ride through summer 2026.
If you are planning a cheap summer between Lisbon, Porto and Spain, the network is suddenly much richer — and the cheapest fares are well below the price of a budget flight once airport transfers are added. Here is what FlixBus is adding this summer, what it costs, and how to get the lowest seats.
What FlixBus is launching in Portugal and Spain
The German long-distance coach operator, which is the dominant intercity bus brand in continental Europe, is making its biggest Iberian push of the year with three lines that all opened in June 2026:
- Madrid ⇄ Braga via Madrid–Barajas Airport, Zamora, Bragança, Vila Real and Porto. Two daily departures, fares from €14.99.
- Lisbon ⇄ Badajoz via Setúbal, Montemor-o-Novo, Évora, Estremoz, Borba and Elvas. Two daily departures, fares from €8.49. The line opens the Alto Alentejo region, which had no scheduled long-distance coach service before.
- Porto / Viseu ⇄ Covilhã via Albergaria-a-Velha and Guarda. Four daily departures, fares from €4.99, designed to serve the University of Beira Interior in Covilhã and tourists heading to the Serra da Estrela mountains.
The Madrid–Barajas Airport stop is the most eye-catching: it turns a coach ride into a usable first or last leg for a flight connection, which is exactly the kind of multimodal trip a Gopaxo comparison is built for.
Why the new Portugal–Spain FlixBus routes matter
The Iberian coach market has long lagged behind France, Germany and Italy, where FlixBus already runs dense networks. Three things make this batch of routes significant:
- They open a region. The Lisbon–Badajoz corridor is the first scheduled long-distance service through the Alto Alentejo. Travellers heading from Portugal to Extremadura no longer have to backtrack via Lisbon or Madrid.
- They tie airports to coach networks. A direct ride from Porto to Madrid–Barajas Airport is genuinely useful for travellers combining a low-cost flight with a long-distance bus — a pattern that is increasingly common as low-cost airlines shrink their short-haul point-to-point networks.
- They set a new Iberian price floor. At €4.99 for Porto–Covilhã, FlixBus is matching what a regional train used to cost, and undercutting almost every other intercity option on the route.
How to book FlixBus Portugal–Spain at the lowest price
The cheapest seats are capped per departure, so a few habits save real money:
- Book a few weeks ahead. The €4.99, €8.49 and €14.99 fares are the launch price; they fill up fast on the Madrid–Braga leg because the Barajas Airport stop is unique.
- Travel off-peak. Mid-week and early-morning departures keep the widest choice of low-fare seats, especially for the Lisbon–Badajoz line where the twice-daily schedule is tight.
- Compare across modes. The Porto–Madrid corridor is also served by flights. A search on Gopaxo lines up FlixBus, regional trains, carpool and flights on the same dates, so you can see which one is really cheapest that day.
- Use the carrier page for luggage and stop details. The full stop list, timetable and luggage policy for FlixBus are documented on the FlixBus carrier page.
- Watch for student and summer discounts. For broader context on low-cost European travel deals this summer, our guide to the Ouigo low-cost trains summer 2026 sale is a good companion read — the cheapest French and Spanish rail seats can be stacked with a FlixBus leg on a long Iberian route.
In short
- Three new FlixBus lines for summer 2026: Madrid–Braga, Lisbon–Badajoz and Porto/Viseu–Covilhã, all announced in June 2026.
- Fares start at €14.99 on Madrid–Braga, €8.49 on Lisbon–Badajoz and €4.99 on Porto/Viseu–Covilhã.
- The Lisbon–Badajoz line is the first scheduled long-distance service through the Alto Alentejo region.
- The Madrid–Braga coach stops at Madrid–Barajas Airport, enabling mixed bus + flight trips.
- The cheapest seats are limited per departure — book early and travel mid-week.
- Always compare FlixBus with trains, carpool and flights before committing.
Frequently asked questions
How much do the new FlixBus Portugal–Spain routes cost?
The new summer 2026 fares start at €14.99 one-way on Madrid–Braga, €8.49 on Lisbon–Badajoz, and €4.99 on Porto/Viseu–Covilhã. Prices rise as the cheapest seats sell out, so earlier booking gets the lower fare.
Where does the new Madrid–Braga FlixBus stop?
The Madrid ⇄ Braga service stops at Madrid–Barajas Airport, Zamora, Bragança, Vila Real and Porto, with two daily departures in each direction.
When did the new FlixBus Portugal routes start?
All three new lines were announced in June 2026 and run through the summer 2026 timetable, with the Lisbon–Badajoz service marking FlixBus's entry into the Alto Alentejo region.
Is FlixBus cheaper than the train in Portugal?
On the new Porto/Viseu–Covilhã line, FlixBus from €4.99 is the cheapest scheduled option for that corridor. On the cross-border Lisbon–Badajoz and Madrid–Braga lines, the comparison depends on the day — that is exactly why comparing across modes on Gopaxo before booking is worth the extra click.
A new wave of cheap Iberian coaches means summer 2026 is one of the easiest years yet to travel between Portugal and Spain without a car. Lock in the launch fares early, then compare the rest of the corridor on Gopaxo before you commit.
