Are there nonstop flights from Rheinmünster (FKB) to Porto (OPO)?

Yes. Ryanair fly this route. Flight time is about 2h 20m.

What is the fastest connection from Rheinmünster (FKB) to Porto (OPO)?

via Valencia ≈ 3h 18m, via London ≈ 3h 22m, via Palma de Mallorca ≈ 3h 28m (estimated flying time, excluding layovers).

Karlsruhe Baden-Baden Airport (FKB) to Francisco de Sá Carneiro Airport (OPO)・1,556 km

Nonstop flights available (1 airline). Flight time about 2h 20m. Nonstop return flights also operate.

15 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.