Budapest Ferihegy international airport
The Budapest Ferihegy international airport is located to the southeast of Budapest. It may be possible to hitchhike from near the airport without first going to the city centre.
From the airport take bus 200E to Határ út (the last stop), then from there take bus 89E or 84E to Kéreg utca (3 stops). You are already on the highway. From there you can walk back a little bit, there is a petrol station. You can ask there, but its better to stay in the bus stop next to it. You may hold a sign for Szeged or simply hitch without a sign.