After getting off at Keleti, you will have to get on the metro, and take the red line towards Déli. Make sure you buy a single ticket, it will be enough for the entire journey. Get off of the Metro at Deák tér. Get on the Blue Metro and go to Arany János utca. When exiting the metro station start walking up Andrássy utca towards the Basilica. Andrássy utca will cross Bajcsy-Zsilinszky utca, and you will just have to walk a few minutes to get to the Adagio hostel under Bajcsy-Zsilinszky way 17!
When exiting Nyugati, go towards the 4 and 6 tram stop, but go beyond it, to Váci street. Walk down Váci street until it meets Bajcsy-Zsilinszky way. In a few minutes, you will find number 17!
Take the red line metro (M2) toward Örs Vezér square and travel to Deák Ferenc square (4th stop). Get off and walk up Bajcsy-Zsilinszky way until you find the number 17!Don't forget to buy a ticket!
Get on the metro towards Újpest Városközpont, and get off at Deák square. Walk up Bajcsy-Zsilinszky way until xyou reach number 17! Don't forget to buy a ticket for the metro ride!
When exiting Liszt Ferenc airport, egt on the 200E bus. Take it to Kőbánya-Kispest metro terminal. Get on the blue metro, and go all the way to Deák square. Get off and find Bajcsy-Zsilinszky way. Walk until you find Bajcsy-Zsilinszky way 17! Remember, you will have to buy 2 tickets to make this journey (on for the bus, and one for the metro!).