Conseils pour réserver un vol

Réserver un vol en quelques clics sur Internet : c’est possible ! Mais une erreur dans la saisie de votre nom, des frais supplémentaires pour l’enregistrement d’un bagage ou une assurance pré-cochée peuvent coûter cher ! Suivez nos conseils pour éviter les mauvaises surprises lors d’une réservation d’un vol auprès d’une compagnie aérienne, d'une agence ou d’une plateforme en ligne de réservation.

Questions- réponses

Roaming offers you the continuity of your mobile phone services in the European Union (EU) depending on the availability of the network in your country of destination. When you call, text or surf the internet abroad, your phone is connected to the network of a third-party operator partnering with your service provider. Roaming charges were therefore the fees charged by your operator for calls, SMS/MMS and mobile internet use via the network in another EU country. Since 15 June 2017, these extra charges have been abolished in Europe for all those consumers who occasionally use their phone outside their residence country.

When you use your mobile phone on a travel to another EU country, you will be “Roaming like at home” which means that when you make a phone call, send an SMS, or use data these will be charged or deducted from the volumes of your national tariff plan exactly as if you were using your phone in France (or any other EU country where you live, work or study).

Since 15 June 2017, when you use your mobile phone while travelling in the EU, i.e. while roaming, you do not, in principle, pay any extra charges.

Roaming services are now included in the offers, and are no longer subject to surcharges, within the limits of reasonable usage.

The services covered when travelling are

  • calls made to any country in the EEA,
  • calls received from any EEA country,
  • sending SMS to any EEA country;
  • connection to the mobile internet (data services).

To receive or send calls, SMS/MMS from abroad, set up your phone before you leave.

  1. activate the "international" option,
  2. OR ask your operator to activate this option,
  3. OR configure the "automatic" network in your phone's settings (instead of the usual operator).

You are only roaming when you use your french mobile phone package outside France.

Calling a foreign number from France is therefore overcharged according to the prices charged by your operator. Since 15 May 2019, the European Union has decided to cap the price of these calls at 19 cents/minute (+VAT) and 6 cents (+VAT) for SMS. When agreeing to the new roaming regulation, the European Parliament has asked the Commission to see if these caps can be lowered.

No, whether you are on holiday in the EU and receive a text message or call from France, or vice versa, you will not be charged.

Only the sender of the call or message will have to pay. Just beware of MMS and other messages containing downloadable media, which will cause you to consume mobile data.

All 27 EU countries are covered by the Roam like at home regime. It also covers Iceland, Liechtenstein and Norway.

The UK is no longer a member of the EU, so charges for using your mobile phone from there may apply. Check with your operator. More information on the consequences of Brexit for consumers.

Regarding Switzerland, there are no plans to adapt roaming to this country. If you are a Swiss cross-border commuter, check your subscription and ask your operator if there are any changes concerning Switzerland.

More information on the European commission website: "Roaming: Questions & Answers"

If your operator finds that you use your french package more abroad than in France over a period of at least 4 consecutive months, you may be charged for mobile communications and data while roaming within the limit of wholesale prices.

If you continue to spend more time abroad than you do at home and your roaming consumption continues to exceed your domestic usage your operator may start charging you extra for your roaming use. The surcharges (excluding VAT) are capped at:

  • 0,022 €/call minute (0,019 € from 1 January 2025)
  • 0.004 €/ SMS (0,003 € from 1 January 2025)
  • 2 € / GB since 1 July 2022;  1.80 €/Gb on 1 January 2023 ; 1.55 €/GB on 1 January 2024 ; 1.30 €/Gb on 1 January 2025 ; 1.1 €/GB on 1 January 2026 ; 1 €/GB on or before 1 January 2027.

The aim of this measure is to promote reasonable use of roaming in the interests of competition, by preventing people from taking out a cheaper package in another country to use it in their home country.

Good to know: If your French operator informs you that over the last 4 consecutive months, you have spent more days roaming than in France, you must, within 15 days of this warning, use your package more in France than roaming to avoid being overcharged. A single connection in France during a day is enough to consider that it is a day spent in France.

More information: "Roaming: what you pay to use your smartphone in another EU country - Your Europe ("

No. By demonstrating to your operator that you have "stable links" with this other EU country because of your residence, work or studies, you can continue to communicate with your French SIM card abroad without additional cost. You can also buy a SIM card in that country and use it without extra cost in France. Please note that it is not always easy to take out a subscription in another EU country, particularly because of the increased identity checks carried out by telephone operators.

Regarding cross-border workers, if you work in one EU country and live in another, you will be using your phone in both. Here also the fair use policy applies : as long as you connect at least once a day to your domestic operator’s network, it will count as a day of presence in the country where you have your contract. It doesn’t matter if you go abroad on the same day.

If you have an unlimited communication plan, you can use it anywhere in the EU at no extra cost. However, there is no cap on voice calls and SMS.

However, under EU rules, your operator may apply a safeguard (fair use) limit on mobile data use while roaming.

The operator must inform you of this limit in advance and alert you if you reach it.

This limit is normally high enough to cover most, if not all, of your roaming needs. If you exceed it, you can continue to use mobile data while roaming, but your operator may charge you for the usage above the cap up to the wholesale prices set by operators at European level (prices excluding VAT): 2 €/GB from 1 July 2022 ;  1.80 €/Go on 1 January 2023 ; 1.55 €/Go on 1 January 2024 ; 1.30 €/Go on 1 January 2025 ; 1.1 €/Go on 1 January 2026 ; 1.00/GB on or before 1 January 2027.



To calculate the amount of mobile data in GB that you can use in the EU without having to pay extra, simply divide the price of your package excluding VAT by the current wholesale price per GB and multiply by 2 (no multiplication for prepaid cards).

As the wholesale price per GB is €2 between 1 July and 31 December 2022, the price of your communication plan excluding VAT for this period corresponds to the volume of mobile data in GB that can be consumed while roaming without any additional cost.

In 2023, you will have to divide the price of the communication plan excluding VAT by 1.80 and multiply it by 2.

Example: for a monthly package costing €25 excluding VAT, you can use mobile data while roaming at no extra cost up to a maximum of 25 GB/month until 31 December 2022 (12.5 GB/month for a prepaid card). Beyond that, you will have to pay €2/GB (excluding VAT).

In 2023, the limit in question will be 27.77 GB/month (13.88 GB/month for a prepaid card). Beyond that, you will have to pay €1.80/GB (excl. VAT) in 2023.

If you have a limited communication plan, your operator may charge you for usage above the cap set by your communication plan within the limit of the wholesale prices set by operators at European level (prices excluding VAT):

  • 0,022 €/call minute (0,019 € from 1 January 2025)
  • 0.004 €/ SMS (0,003 € from 1 January 2025)
  • 2 € / GB since 1 July 2022;  1.80 €/Gb on 1 January 2023 ; 1.55 €/GB on 1 January 2024 ; 1.30 €/Gb on 1 January 2025 ; 1.1 €/GB on 1 January 2026 ; 1 €/GB on or before 1 January 2027.

As with an unlimited package, the operator can limit mobile data use while roaming without additional costs.

To find out this limit, divide the price of your communication plan excluding VAT by the current wholesale price per GB and multiply it by 2.

Since the wholesale price per GB is €2 between 1 July and 31 December 2022, the price of your package excluding VAT is the amount of mobile data in GB that you can use without addditional costs in the EU during this period. In 2023, you will have to divide this price before tax by 1.80 and multiply it by 2.

Then compare the result of the calculation with the amount of GB in the package.

The smaller of the two amounts should be taken as the amount of GB that you can use while roaming without additional costs. This volume is then deducted from the total volume of mobile data included in your communication plan.

Example: For a €15 monthly package with 100 GB, the maximum amount of mobile data you can roam without incurring extra charges is 15 GB/month in 2022. If you use it up, you will have 85 GB/month left to use in France. If you exceed this cap in the EU, you will have to pay €2/GB (excl. VAT) in 2022.

However, many operators offer lower caps, for example a €15 package with a limit of 100GB of mobile data, of which 25GB (or more) can be used in the EU.

Special surcharged numbers exist in France, for customer services, local authorities etc. If you call them from abroad, additional costs may apply. Indeed as they have a specific regime domestically, and may entail a surcharge when called from abroad. The roaming regulation obliges operators to better inform consumers of the extra costs they incur by calling, for example, from abroad the customer service of their bank, insurance company or even the airline that has just cancelled their flight. 

Good to know: The telephone number provided by a trader for receiving a call from a consumer with a view to ensuring the proper performance of a contract or the handling of a complaint may not be overcharged. This number shall be indicated in the contract and correspondence.


Yes, your operator must inform you that you are roaming as soon as you cross the border. Usually you receive the famous "welcome SMS". The operator must also inform you of the applicable reasonable usage policy. Finally, you should receive a notification when you have reached 80% of your mobile data roaming allowance (either in agreed volume or financial limit).


Tip: To limit your mobile data usage while roaming, use Wi-Fi and free local hotspots when travelling. However, make sure that the network is secure and avoid, for example, banking operations (online purchases, checking your bank accounts, etc.) in public places. Also think about applications or services (film streaming, digital books, online mapping, etc.) that allow you to download content and then view it offline. More information on travelling with your subscription and the portability of digital content.

More information on the European commission website: "Roaming: Questions & Answers"


If you travel by boat in an EU maritime area, whether on a cruise or as a means of transport, you can roam at national rates as long as you are connected to a land-based mobile network within the EU.

But once you are out at sea, far from the coast, you may not be covered by national operators. It is then the ships themselves, with their own GSM coverage, that can allow you to make and receive calls and SMS using satellite relay antennas. This can also happen when travelling by plane.

However, as long as your mobile services are provided via satellites, they are associated with international roaming. You may be charged unregulated roaming fees (without price caps). Before you leave, check with your phone provider to see what rates you will be charged.

Good to know: Since 1 July 2022, your operator must warn you via SMS if your phone connects to a non-terrestrial network. “Operators should also offer tools for the customers to avoid additional costs such as opting out from connections to non-terrestrial networks.”  Unless you tell them otherwise, they must automatically cut off mobile services if the amount charged for using this type of network reaches €50 or another predefined limit. Check this limit with your operator before travelling by boat or plane. Some operators may offer other services, such as the possibility of not using roaming on a plane or boat.

Conseils pour votre réservation de vol

Avant de confirmer votre réservation, vérifiez bien vos choix car vous ne bénéficiez pas d’un droit de rétractation de 14 jours pour annuler votre vol réservé sur Internet.

  • Comparez les offres (repas offert ou non, frais d’enregistrement en ligne ou à l’aéroport, supplément bagages, réservation de sièges …) entre les différentes compagnies aériennes et entre la compagnie choisie et une plateforme de réservation.
  • Ne vous laissez pas impressionner par les offres à prix réduit ou les mentions sur le nombre de personnes consultant le même vol et de places encore disponibles.
  • Vérifiez la date du vol réservée.
  • Vos  prénom, nom de famille et date de naissance ont-ils été saisis correctement ? Toute modification ultérieure de votre réservation  est généralement payante.
  • L’enregistrement de votre bagage est-il compris dans le prix du billet ? Au nom du principe de liberté des prix, les compagnies aériennes peuvent proposer l’enregistrement des bagages en option.
  • Si vous réservez plusieurs vols séparément, laissez-vous assez de temps pour changer de vol.
  • Informez-vous sur vos droits ! En cas d’annulation, de retard ou de refus d’embarquementinjustifié par la compagnie aérienne, vous avez souvent droit à une indemnisation.

Attention aux frais cachés sur les billets d’avion

En principe, les compagnies aériennes, tout comme les agences de voyage et les intermédiaires de voyage qui vendent des vols au départ de l’Union européenne, doivent préciser dès le début du processus de réservation le prix définitif  (toutes taxes comprises) qui sera à payer.  Mais dans la pratique, plusieurs frais cachés peuvent faire augmenter le prix d’un billet d’avion : assurance annulation, supplément bagages, enregistrement à l’aéroport, choix du numéro de siège...

Assurance annulation voyage

Vérifiez toujours si elle n’est pas pré-cochée dans votre réservation.  Si vous ne la décochez pas, elle vous sera facturée en général une quinzaine d’euros et il sera ensuite difficile d’en obtenir le remboursement. Vérifiez aussi si vous ne disposez pas d’une assurance annulation via votre carte bancaire par exemple.

Supplément bagages

Chaque compagnie a ses propres règles de transport des bagages.

Concernant le bagage en cabine, il est gratuit pour la plupart des compagnies mais est devenu payant pour d'autres, il doit respecter un certain poids et une certaine taille...Vérifiez donc directement sur le site de la compagnie aérienne la taille et le poids autorisé en cabine et ainsi éviter que votre bagage finisse en soute lors de l’embarquement, contre un supplément.

Concernant les bagages en soute, les compagnies les facturent de plus en plus souvent. Renseignez-vous ! Vérifiez également le poids autorisé.

Interdiction des frais sur les moyens de paiement

Les frais supplémentaires pour paiement par carte bancaire, virement ou prélèvement en euros sont interdits dans toute l’Union européenne (directive sur les services de paiement 2). Ils étaient déjà interdits en France avant la directive.

Impression de la carte d'embarquement

Beaucoup de compagnies proposent un enregistrement en ligne. Vous devez alors imprimer vous-même votre carte d’embarquement ou l’enregistrer dans votre smartphone. A défaut, la compagnie aérienne pourrait vous facturer l’impression de votre carte d’embarquement à l’aéroport (environ 40€ par billet).

Le choix du numéro de siège

Le placement dans l’avion est devenu payant auprès de nombreuses compagnies aériennes. Si vous partez à plusieurs et que vous souhaitez être assis les uns à côté des autres, vous devrez certainement payer un supplément pour pouvoir avoir un numéro de siège côte à côte.

Quelles sont les taxes sur un billet d’avion ?

Au prix du vol s’ajoutent plusieurs taxes aériennes qui varient entre autres selon les pays ou selon l’aéroport :

  • taxe d’aéroport : seule cette taxe est remboursable en cas d’annulation de vol par la compagnie ou vous-même.

Bon à savoir : si vous avez réservé votre billet via un intermédiaire français ou un intermédiaire européen qui s'adresse aux Français (site en français, en .fr, proposant des moyens de paiement français...) et que vous lui demandez en ligne le remboursement de la taxe d'aéroport car vous n'avez pas pris l'avion, le remboursement doit être intégral et effectué sous 30 jours. Si la demande est effectuée par un autre moyen, l’intermédiaire ou la compagnie peut prélever jusqu’à 20% de la somme à titre de frais. Si ces dispositions ne sont pas respectées par la compagnie ou l’intermédiaire de vente, elle peut être condamnée à une amende administrative ( article L224-66 du Code de la consommation).

  • taxe d’aviation civile
  • taxe sûreté sécurité environnement
  • taxe de solidarité
  • surcharge carburant et sûreté
  • taxe de sortie du territoire à payer en Allemagne et Autriche ("Luftverkehrabgabe").