Authors early bird registration deadline 09.05.2021
Authors late registration deadline 16.05.2021


1EURO 2021 General Information

Q: When does EURO 2021 occur?
A: We have the great pleasure of inviting you to attend the 31st EURO Conference to be held in Athens, Greece on 11-14 July 2021.

Q: Where will EURO 2021 take place?
A: The conference will take place in Athens, the capital of Greece. Specifically, the 31st European Conference on Operational Research will be held on the Campus 2 of the University of West Attica.

Q: Which is the official Conference language?
A: The conference official language will be English.

Q: What if, according to circumstances, the Congress is converted into a hybrid or a virtual event?
A: After a year of lockdowns and limited travel, we are optimistic that the EURO 2021 Conference will again provide an excellent opportunity for the OR community to meet in person in a city that in a unique way stands for the identity of Europe. Euro 2021 acknowledges that virtual conferences can’t entirely replicate the conference experience, which normally involves face to face meetings and networking opportunities. However, Euro 2021 is fully prepared to adjust its strategy in case of any similar situation and to convert the physical congress to a hybrid or virtual one, with main objective that the new format will continue to meet the needs of the Euro 2021 community and to ensure a viable future for the association’s activities in scientific education and professional support. Registered participants will still be eligible to participate, authors whose abstracts were accepted will be published in the digital abstract book, with e-posters available for virtual consultation and industry to have a wide selection of sponsorship opportunities.

2Abstract & Publication

Q: How many abstracts can I submit?
A: Answers vary depending on your role in the abstract submission process. If you will be:
• the presenter (All presenting authors should register to the conference. The registration fees entitle an author to submit and present one abstract.)
• one of the co-authors (nor the presenter or the first author, both cases covered above), you are entitled to be part of as many abstracts as you want.

Q: Is there a specific template I have to use to submit my abstract?
A: No specific template is required to submit your abstract. Please visit the relevant section of the website and follow instructions provided to submit your abstract.

Q: What will the EURO 2021 publish in the conference proceedings?
A: The electronic version of the proceedings contains all the abstracts accepted for the conference that correspond to registered authors.

Q: Will the full papers of the abstracts be published?
A: No. EURO 2021 does not publish full papers. There are, however, a number of Special Issues on prestigious international journals planned. Therefore, please feel free to submit a full paper of your abstract there. You may find all the relevant information, here.

3Hotels & Travel

Q: How can I reach the city center from the airport?
A: Upon your arrival, you have the three available options to get the city center:

  • Bus (X95 : Syntagma – Airport)

EXPRESS Bus routes connect directly the Athens International Airport (AIA) “Eleftherios Venizelos” with the Athens city center. Service is provided on a non-stop basis seven days a week including holidays (24/7 operation).

All buses depart from the Arrivals Level (outbound trips from airport). BUS tickets are sold at the info/ticket-kiosk (located outside the Arrivals between Exits 4 and 5), or onboard (ask operator) at no extra cost.

NOTE: Estimates are given for reference only. Journey time depends always on prevailing traffic conditions. Passengers are advised to allow sufficient time for their transfer from/to the airport. Find all the ticket info here.

  • Metro Line 3 (Blue Line)

If you select this option you may take Metro Line 3 (Aghia Marina – Douk. Plakentias - Athens International Airport), which connects the Athens airport with the city center. Trains run every 30 minutes, 7 days a week from 6:30 a.m. to 11:30 p.m. The trip from the Airport to Syntagma station (Athens center) lasts 40 minutes. Find all Metro timetable details for this route, here. For tickets and cards please check here.

  • Taxi

Taxis are available at the designated Taxi waiting area located at Exit 3 of Arrivals Level. A taxi from the airport to the city center (inner ring) costs a flat rate of €35* from 5:00 a.m. to midnight, and €50* from midnight to 5:00 a.m.

Note: The charge is determined by the time of arrival at the destination and includes all applicable surcharges and extras.

*ALL applicable surcharges included. So, toll cost, luggage fee, VAT, airport charge, meter start are ALL included.

Q: How do I get an international visa invitation letter?
A: If you require an invitation letter to enter Greece, you’ll have the option to request one while you are registering for the event. Kindly be notified that invitation letters are provided within a week of the application, only to fully registered participants (registration submitted and paid). For further information about the travel documents click here.

Q: Should I wait to book hotel and airline reservations in case prices come down?
A: We recommend that you attend to your bookings (hotel and flights) early, as July is a high seasonality month and you might not be able to find any availability according to your standards if you do not book in advance. We highly recommend that you book your services using our official travel partner, CONVIN S.A. as they are familiar with our event and they are able to ensure a seamless, guaranteed experience.


Q: How do I register?
A: To register, you may visit the online registration form and select one of the different registration categories that applies to you, please visit the registration page here.

Q: Which registration category do I select?
A: If you are currently enrolled as a student in any institution doing an undergraduate, Master or Ph.D. degree, you qualify as a student. However, you will have to upload in the registration form an official status proof. Retired attendees also have to upload a documental proof. If any of the previously mentioned categories do not apply to you, you are a regular attendant. Note that the organization is subject to strict auditing and hence the need for official documents.

Q: What does my registration fee include?
A: For details on the entitlements of each registration category and type of participation please visit the relevant section of the conference registration page.

Q: How can I pay the registration fees?
A: You can pay by credit card or bank transfer until June 20th, 2020.

Q: Will I receive a confirmation letter after I have finished registering?
A: Yes. A detailed confirmation letter and receipt – if the payment is complete- will be sent to you via email upon submission of your on line services booking form.

Q: Can I receive an invoice under my sponsoring Company/ Institution’s name?
A: It is possible, as long as you select the option “I will need an invoice” upon completion of your online services booking form. At this point, you will also need to fill in the relevant billing details of the company/institution.

Q: Can I cancel my registration for the conference?
A: According to the conference policy, only written cancellation requests will be accepted. Any cancellation or alteration of your registration must be notified in writing by e-mail to [email protected] and will be subject to the following conditions:

  • Until May 1st, 2021: full refund will be given less €150 administrative fee
  • From May 2nd, 2021wards: No refund granted.
Alterations / Name changes
  • Until June 19th, 2021: name changes will be charged €80 administrative fee.
  • From June 20th, 2021 onwards: no name changes will be accepted.

Q: When will the detailed programme be available?
A: After the abstract submission deadline and the notification of the authors, we will provide the final programme for the EURO 2021 Conference. According to the current planning the programme is likely to be ready by the end of May 2021. However, you are able to visit the programme at a glance, here and have a first taste of the conference programme.

Q: Can you schedule my talk on day X? (and other constraints)
A: You are welcome to submit requests that affect your availability for your presentation to [email protected] However, kindly note that it might not be able to implement your request due to organizing variables and constraints.


Q: When will all notifications regarding the abstract submissions be announced?
A: Our scientific committee will contact you to advise whether your abstract has been accepted or not, no later than March 28th, 2021.

Q: As a speaker, do I have to register?
A: Registration is required for all participants and exhibitors. Each registered participant can present a maximum of one contribution to the conference programme. Registered participants and exhibitors will receive a badge giving them access to the conference venue. Participants and exhibitors are requested to wear their badges at all times. To register, you may select one of the different registration categories that applies to you, please visit the registration page here.

Q: Are there any special issues planned?
A: Several journals have prepared special issues related to the EURO 2021 Conference. See the Special Issues page for more details.

Q: Who can I contact if my question is not included in the above?
A: You can contact the Professional Congress Organizer via email [email protected]