Visa

Entry visas for short-term stays in Hungary are not required for visitors from European Union member countries and from the countries listed at https://konzinfo.mfa.gov.hu/en/short-term-stay. For further information about visas and other requirements, please contact the Hungarian embassy or consulate in your country.

In case of any other visa questions, please contact the web site of the Ministry of Foreign Affairs at https://konzinfo.mfa.gov.hu/en/short-term-stay

Official invitation letters can be requested by email after the registration and accommodation booking have been completed and paid.

Arriving in Budapest

Beside the well-known airlines, several low-cost airlines fly between Budapest and major European cities (for example Wizzair, Ryanair, EasyJet, Eurowings).

From Liszt Ferenc Airport, you can travel with the airport’s official taxi partner, Főtaxi. Taxi reservations can be made at the official Főtaxi stands located at the exits of Terminals 2A and 2B. Taxis are continuously available at the designated taxi points after the reservation is registered at the stand.

You may also use the Airport Minibus Service, which offers door-to-door transportation. The fixed price is approximately 27 EUR one way and 48 EUR for a return ticket, which will take you to your destination in Budapest and also pick you up at your hotel for your return trip to the airport.

Public transportation between the airport and the hotels/conference venue is less expensive (around 7 Euro in total for one-way). Tickets can be purchased at the BKK customer service centers located in Terminals 2A and 2B, as well as from BKK ticket vending machines near the terminal entrances. Tickets are also available via the BudapestGO app that you can download for iOS and Android as well. To reach Novotel Budapest Danube, take bus 100E to Astoria then change to metro line M2 to Batthyány tér. The hotel is within a 5-minute walk from there.

Other Practical Information

Language: The official language of the Conference is English.

Participation is subject to prior registration. Only participants who have paid the registration fee before arrival are entitled to attend the event. On-site payment is not available. Registration and accommodation booking will be available through an online registration system.

Certification of Attendance: Certificate of Attendance can be requested by e-mail from the conference secretariat at icdd2026@altagra.hu.

Currency & Payment: Hungary’s official currency is the Hungarian Forint (HUF). Currency exchange services are widely available in the city, however, most places accept credit cards.

Insurance

The organisers do not accept any responsibility for injuries/damages or losses sustained by individuals or their personal belongings during the conference. Participants are strongly advised to carry appropriate travel and health insurance.

Registration fees and accommodation price

REGISTRATION FEES

Early bird registration fee	Registration fee valid in case of registration and payment made by 16 February 2026.	571,50 EUR
Regular registration fee	Registration fee valid in case of registration and payment made between 17 February and 30 March 2026.	698,50 EUR
Late registration fee	Registration fee valid in case of registration and payment made from 31 March 2026.	762,00 EUR

 

The registration fees includes:
– participation in the 5th International Congress on Deuterium Depletion
– 2 lunches
– 1 dinner
– coffee and refreshments during the breaks
– 21.26% VAT

ACCOMMODATION

Participants have the opportunity to book a room at the conference venue.
Novotel Budapest Danube **** on our online registration system.
H-1027 Budapest, Hungary, Bem rakpart 33-34.
Superior room single occupancy EUR 136,-/room/night
Superior room double occupancy EUR 151,-/room/night
Supplement for Superior room with view to the Margaret Bridge EUR 20,-/room/night
Supplement for an Executive room with view to the Parliament  EUR 50,-/room/night
Room rates includes:
- Accommodation
-Buffet breakfast
- 4,76% VAT
- Tourist tax
-Internet usage / WIFI
-Fitness and sauna usage

Cancellation policy

Cancellation Policy for Accommodations:

Cancellation is accepted in writing only. If cancellation is received by 15 February 2026, the accommodation fee already paid will be refunded. For cancellations received between 15 February and 1 April, a 50% technical fee will be charged. For cancellations received after 1 April, we are unable to provide a refund; however, we will accept the transfer of the accommodation booking to another person.

Cancellation Policy for Registration:

Cancellation is accepted in writing only. If cancellation is received by 15 February 2026, the accommodation fee already paid will be refunded. For cancellations received between 15 February and 1 April, a 50% technical fee will be charged. For cancellations received after 1 April, we are unable to provide a refund; however, we will accept the transfer of the accommodation booking to another person.