Railways of Slovak Republic (ZSSK) operates a train from Bratislava to Hegyeshalom hourly. Tickets cost $3 - $5 and the journey takes 32 min. Hungarian Railways (MÁV) also services this route every 2 hours. Alternatively, RegioJet operates a bus from Bratislava to Hegyeshalom every 30 minutes. Tickets cost $2 - $4 and the journey takes 45 min. 2 other operators also service this route.
From Bratislava Nové budova SND train to Rajka then train to Hegyeshalom. 1 h 45 min 4€. From Bratislava, Most SNP bus to Vienna Airport then bus to Hegyeshalom. 2 h 25 min 20€. From Bratislava drive to Hegyeshalom. 27 min 4€.