Are there nonstop flights from Castellón de la Plana (CDT) to Luton (LTN)?

No. The fastest connection is via Bilbao, about 2h 39m of total flying time.

What is the fastest connection from Castellón de la Plana (CDT) to Luton (LTN)?

via Bilbao ≈ 2h 39m, via Madrid ≈ 2h 53m, via Palma de Mallorca ≈ 2h 55m (estimated flying time, excluding layovers).

Castellón-Costa Azahar Airport (CDT) to London Luton Airport (LTN)・1,297 km

No nonstop flights. The fastest connection is via Bilbao (BIO), about 2h 39m of flying time (layover not included).

None.

8 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.