What is the best mobile plan for Swiss cross-border commuters? It depends on how you use it

Why there is no single answer

What a cross-border mobile plan includes on the other side of the border varies from one offer to another, and that is where everything is decided.

Three criteria set the offers apart. The table below puts them side by side: mobile data meant for Switzerland, the calls you make from Switzerland, and the ones you make from France to a Swiss number.

Which plan in this comparison is the cheapest for a Swiss cross-border commuter?

In the table on this page, checked on 23 October 2026, 18 October 2026 or 14 October 2026, the cheapest plan with Switzerland included is the Flytel Essentiel plan, at €14.99 a month, with no commitment, 20 GB of mobile data in Switzerland and calls in both directions. Among other operators, the cheapest offer with mobile data in Switzerland costs €15.99 a month, at B&YOU (special series for a new subscription taken out on the website, with no end date shown), RED by SFR and Sosh (any new subscription, except a plan change by an existing Orange or Sosh customer); with calls made from Switzerland as well, €17.99 a month, at SFR (new customers); with calls in both directions, €24.99 a month, at SFR (new customers).

This ranking covers only the offers in the table, each price checked with its condition. In the full survey, further down, 5 of the 33 plans or groups of plans from other operators include calls in both directions: all of them are in the table, with their price.

What the other offers include

Every cell comes from the operator’s terms of sale, contract summaries or price guide, read on its own website on the date written under each price. These documents are in French. Before comparing, see what “Switzerland included” means from one operator to another (in French) and calls in both directions, offer by offer.

Information checked between 14 and 23 October 2026. Next check before 14 November 2026. This table keeps one offer per operator, plus every plan that includes calls in both directions, each checked at its source. It does not cover the whole market: other plans from these operators include more of Switzerland on a single point. We detail them plan by plan, in French, for Free, SFR, RED by SFR, Bouygues Telecom, Orange and Sosh.

Which plan should you choose for your cross-border use?

Start from what you do on the other side of the border. For each use, here are the offers that fit it, Flytel or not.

How many plans include calls from Switzerland?

Of 33 plans or groups of plans from Free, SFR, RED by SFR, Bouygues Telecom, Orange, Sosh, Syma and La Poste Mobile checked between 18 and 23 October 2026, 17 include calls made from Switzerland, 6 calls from France to a Swiss mobile, and 5 both. Both are included in: SFR Forfait 500 Go 5G+; SFR Offre Spéciale Illimitée 5G+; Bouygues Telecom Mega BiG 250 Go; Bouygues Telecom Intégral 250 Go; Orange Forfait 300 Go 5G+. Mobile data usable in Switzerland is included in 24 of them.

The survey covers the plans of these eight operators, read in their contract documents. It does not cover the whole market. Flytel publishes this page: its plans are not counted in the survey, they appear separately, below the other offers in the table above. Every plan in the survey can be downloaded in a file, in French, with the operator’s document and the date it was checked: the survey as CSV or as JSON. The edition of 11 September 2026 remains downloadable as it was published: the survey of 11 September 2026 as JSON. The edition of 6 October 2026 remains downloadable as it was published: the survey of 6 October 2026 as JSON.

The survey is published under the Creative Commons Attribution 4.0 International (CC BY 4.0) licence: you may reuse, adapt and republish it, including for commercial use, provided you credit the source and the licence. To reuse these figures, write “Source: Flytel survey, flytel.fr, dated 18 to 23 October 2026”.

What you often read, and what the contracts say

Operator by operator: calls in Switzerland

For each operator in the survey: the answer first, then the date and the documents read, in French. The address of each document is in the downloadable survey, column “adresse_source”.

Six points to check in your contract

Calls made from Switzerland. In four of the 12 other offers in the table, a call you make from your office in Geneva is charged extra, by the minute: at B&YOU, RED by SFR, Free and Sosh.

Calls from France to a Swiss number. In the evening, from home, you call a colleague in Switzerland back. SFR Forfait 500 Go 5G+, Bouygues Telecom Mega BiG 250 Go, Bouygues Telecom Forfait Intégral 250 Go, SFR Offre Spéciale Illimitée 5G+ and Orange Forfait 300 Go 5G+ include them.

Mobile data meant for Switzerland. In the table, in Switzerland: B&YOU, 40 GB, taken from the France allowance; RED by SFR, 35 GB, shared with more than a hundred other destinations; SFR, 80 GB, the same amount on both sides; Free, 35 GB, shared with more than a hundred other destinations; Sosh, 40 GB, shared with Europe and the French overseas departments; Orange, 50 GB, separate from the France allowance; Bouygues Telecom, 130 GB, the same allowance as in France; SFR, 100 GB, separate from the 500 GB for France; Bouygues Telecom, 250 GB, the same allowance as in France; Bouygues Telecom, 250 GB, the same allowance as in France; SFR, 100 GB, separate from the unlimited France data; Orange, 150 GB, separate from the 300 GB for France. A cross-border commuter is not on holiday: they are at the office every day. Data meant for holidays is not made for that. Also check whether it is taken from your France allowance: at Flytel, it is counted separately from your France allowance, and what you use in Switzerland does not touch your France allowance.

Calls received in Switzerland. When your phone is in Switzerland, receiving a call can be charged: the minute received has its own entry in the price list for calls from abroad. With Flytel, calls received in Switzerland are included.

The length of a call. A phone meeting sometimes lasts more than an hour. In the table, for example, calls made from Switzerland are limited to two hours on SFR Forfait 500 Go 5G+ and SFR Offre Spéciale Illimitée 5G+, according to their contract. With Flytel, there is no limit per call: 50 hours of calls a month in total.

Everyday use in Switzerland. Every French plan sets limits on use outside France: read what the clause says if you spend your days in Switzerland. At Flytel, the plan is for people who live in France, and the clause covers usage outside France that regularly exceeds usage in France: what the clause measures, and what happens otherwise (in French).

What this comparison does not compare

• The whole market. The table keeps one offer per operator, plus every plan that includes calls in both directions. The survey counts 33 plans or groups of plans, from eight operators. Other operators and other offers exist.
• Network quality. Neither coverage, nor speed, nor customer service: Flytel publishes no measurement of this kind. The network written in the table is the one each operator states.
• One-off fees. The price in the table is the monthly price shown on the day it was checked, with its condition. The SIM card and activation are not included in it.
• The price of charged calls. The page says whether a call is included or not, not what an out-of-plan minute costs. That rate is in each operator’s price guide.
• Paid add-ons. The survey only counts what the plan includes. Add-ons that add Switzerland are described on each operator’s page, in French.
• The rule on use outside France. A French plan assumes use mainly in France, at Flytel too. It is compared in the guide to extended use in Switzerland (in French).

How this page is made

Flytel only cites an operator after reading its terms of sale and its price guide, on its own website. Without that reading, it does not go into the table. Never a comparison site, never a press article. The rules we follow are written in our checking method (in French).

The criteria. The monthly price and its condition, mobile data in France and in Switzerland, calls made from Switzerland, calls from France to a Swiss number, texts and the network. Who checks. Flytel, publisher of this page, in each operator’s documents. The sources of the table:

• B&YOU Série spéciale 200 Go Voyage 5G: Récapitulatif contractuel B&YOU du 27 juillet 2026 et guide des tarifs Bouygues Telecom du 3 août 2026. Checked on 23 October 2026.
• RED by SFR Forfait 250 Go 5G Voyage: Fiche d’information standardisée RED applicable à partir du 21 octobre 2026 et brochure tarifaire du 6 octobre 2026. Checked on 23 October 2026.
• SFR Forfait 80 Go 5G: Fiche d’information standardisée SFR du 6 octobre 2026 et brochure tarifaire du 6 octobre 2026, page de vente sfr.fr lue le 23 octobre 2026. Checked on 23 October 2026.
• Free Forfait Free 5G+: Récapitulatif contractuel et brochure tarifaire Free du 21 juillet 2026, mobile.free.fr. Checked on 23 October 2026.
• Sosh Forfait Voyage 200 Go 5G: Mentions de la page shop.sosh.fr/mobile/forfaits-mobiles et récapitulatif contractuel du 20 août 2026. Checked on 23 October 2026.
• Orange Série Spéciale 130 Go 5G+: Page de vente boutique.orange.fr, récapitulatif contractuel du 8 octobre 2026 et brochure tarifaire Orange en vigueur du 8 octobre au 18 novembre 2026 (pages 9, 22, 23, 49, 52 et 53). Checked on 23 October 2026.
• Bouygues Telecom Forfait Confort 130 Go: Page de vente bouyguestelecom.fr lue le 18 octobre 2026 et récapitulatif contractuel du Forfait Confort 130 Go du 27 avril 2026. Checked on 18 October 2026.
• SFR Forfait 500 Go 5G+: Fiche d’information standardisée SFR 500 Go 5G+ du 6 octobre 2026 et brochure tarifaire du 6 octobre 2026, page de vente sfr.fr lue le 14 octobre 2026. Checked on 14 October 2026.
• Bouygues Telecom Mega BiG 250 Go: Récapitulatif contractuel des forfaits Bouygues Telecom du 22 juin 2026, pages 1 et 3, et page bouyguestelecom.fr lue le 14 octobre 2026. Checked on 14 October 2026.
• Bouygues Telecom Forfait Intégral 250 Go: Récapitulatif contractuel des forfaits Bouygues Telecom du 22 juin 2026, pages 1 et 3, et page bouyguestelecom.fr lue le 14 octobre 2026. Checked on 14 October 2026.
• SFR Offre Spéciale Illimitée 5G+: Fiche d’information standardisée SFR Offre Spéciale Illimitée 5G+ du 6 octobre 2026 et brochure tarifaire du 6 octobre 2026, page de vente sfr.fr lue le 14 octobre 2026. Checked on 14 October 2026.
• Orange Forfait 300 Go 5G+: Récapitulatif contractuel du Forfait 300 Go 5G+ du 9 avril 2026 et brochure tarifaire Orange en vigueur du 8 octobre au 18 novembre 2026 (pages 9, 30, 31, 51 et 53), page de vente boutique.orange.fr lue le 23 octobre 2026. Checked on 23 October 2026.
• Flytel Confort: Terms and conditions, article 6, and the plans’ information sheets (in French), current price list.

This table gives contract clauses, with the date on which we read them. We reread them at least once a month, and update the page when they change.

Are you a tradesperson, self-employed or a company director? For a plan in your business’s name, with an invoice and VAT: Comontel (in French), the mobile operator for professionals on the border.

Frequently asked questions about the best cross-border plan