Start with the 12:45 Pegasus Airlines flight from Istanbul to Amsterdam, about 3h 40m. Transfer in Amsterdam, then take the 19:09 NS train on to Maastricht (2h 29m). Transfer in Maastricht, then take the 22:24 DB Regio AG NRW train on to Aachen (3 min). You arrive in Aachen around 22:27. In total it's roughly EUR 123 over 9h 42m, 2 transfers.
Pegasus AirlinesKiwi opens sorted by price, cheapest first. Final fare is confirmed at checkout.
NS + metroNSOpens Omio — enter your date to compare trains and buses for this route; the price is finalised at checkout.
DB Regio AG NRWOpens Omio — enter your date to compare trains and buses for this route; the price is finalised at checkout.
Fly into Amsterdam, then continue to Aachen by train (2h 29m) — routing via Amsterdam keeps the trip simple. Flight (PC, 3h 40min) + Train (NS, 2h 29min) via Amsterdam + Train (DB Regio AG NRW, 3min) via Maastricht.