The best eSIMs of summer 2025
Discount codes to save with Airalo, Saily, Jetpac and many other eSIMs

It is possible to determine the best eSIMs of summer 2025? With the market flooded with new offerings everyone could claim that their eSIM is the best of all.
In this article:
The good bum has long been faithful to his Airalo while I do very well with Saily. These are not the only alternatives on the market, so I decided to compare different operators. In addition to the aforementioned Airalo, Offering the exclusive discount of 15% with code TFC15 and Saily, which proposes a 15% discount for The Flight Club, I also chose to analyze the offerings of three other operators: Jetpac which also offers other advantages ETravelSim as an alternative operator and Ubigi who also offers exclusively for The Flight Club a 10% discount by using code TFC10.
Here are some numbers to compare.
Global eSIMs: the best of summer 2025
In order to make a homogeneous comparison, I started from the global eSim. Many companies offer coverage beyond a single country or a limited geographic area. Today, a global eSim is a companion for adventures For those who travel a lot for business or pleasure and does not feel like constantly activating a new plan. All four companies in this comparison offer comprehensive plans. I have chosen for all of them, and for convenience, a 10 GB package which, depending on the offer may have different durations. However, in this case the parameter that makes the real difference is the Number of nations in which eSim is able to operate. Bearing in mind that there are 195 nations (those officially recognized) in the world, here are, the best eSims of summer 2025 starting with those with greater coverage.
In this case, Airalo is the eSim that provides the largest number of countries covered. Ben 138 countries with the 10-gigabyte package associated with 180 days of validity. In this case, the price of the eSim is 59 USD to which the TFC reader discount to arrive at a total of 47.20.
Similar price but with coverage on 113 nations of the world, Saily's eSim, which instead offers the 10 GB at $48 with discount 15% for TFC readers already included.
With 95 nations Jetpac blankets offers the 10 GB at a cost of US$41.65 with the TFC15 discount applied. It should be noted that Jetpac also offers the same 10 GB with the same coverage but only for 30 days at a very cheap and discounted price of US$23.80. In addition, Jetpac offers. Lounge access and fast track service at the airport under certain conditions included in the subscription with eSim, benefits to be taken into account in this choice.
Instead, I am "only" 60 nations in which ETravelSim is valid but the 10 GB can be used for one year. All at a fairly low cost of only US$29.99. This eSim is to be evaluated where trips were more deferred over the year in which it is activated.
Slightly different discourse for Ubigi, which offers eSims with worldwide coverage but does not provide a 10 GB package. However, the coverage turns out to be really good, at the level of Airalo's but the price is not very affordable. The package that comes closest to those mentioned for other companies is 3 GB offered at 43 USD from which the TFC discount of 10% is subtracted. On the other hand, if you decide to subscribe to a Ubigi's global eSim For a full year you get 5 Gb per month at cost, discounted with code TFC10, by $21 per month.
The best regional eSIMs 2025
Here the comparison becomes decidedly more varied and the following comes into play the coverage area of each eSim as a determining factor. Traveling to a region of the world and then being in one of the nations not covered by the package is really troublesome. Priority in choice should therefore be given to Who offers the most countries covered even at a less economical price than other companies.
In Asia Ubigi offers the most coverage which offers its eSims that can be used in 26 countries and the package from 10 GB with 30 days validity costs 39.60 USD discounted exclusively with the code TFC10. Also from the same company we have to report that by choosing the Best Asia package the coverage drops to 16 countries and the price remains the same but as much as 25 GB are provided. A good compromise for Asia is offered by Saily With 19 countries covered and the 10 GB (30-day validity) makes us spend only $30.59 With the exclusive discounted price for The Flight Club. It should be noted, however. Airalo's offering with 18 Asian countries included turns out to be a little less expensivea for the 10 GB as they are priced at just under $30 using our discount coupon. Instead, they cost less than half Jetpac's eSim and ETravelSim for Asia but they cover only 6 and 11 nations in the Asian region, respectively, making them of little use to those seeking greater coverage.
If the goal is to travel in Europe, the difference between the coverages of these 4 companies under consideration is smaller. In fact, we go from Airalo with 42 nations from the old continent up to 36 from Ubigi, 35 from Saily and ETravelSim and 30 for Jetpac. Consider that very small countries such as Vatican City, Andorra or San Marino are often included. For each company the major European nations are all covered effectively making the competition only economic. Jetpac wins the challenge here. Which offers the 10 GB for only $11 thanks to the TFC15 discount coupon. Just a thread more expensive ETravelSim at 13.99 USD along with. Ubigi at $14.40 with code TFC10. more than double for Saily and Airalo.
Another interesting comparison to be made is that on the North America. Here the countries to be covered are essentially two, the U.S. and Canada, but for example Airalo includes Mexico in it while ETravelSim does not offer any of these countries together. The cheapest solution is again Jetpac Which provides 10 GB for 30 days At a cost of $20 thanks to coupon TFC15. Saily and Airalo are definitely more expensive with 37.39 and 36.80 while Ubigi includes the U.S. and Canada in the "Americas" plan but available only for 1GB, in the latter case better to opt for the plans on individual countries.
The packages for a single nation
Wanting to activate a individual country the war between eSim providers becomes even more interesting. Some are cheaper on certain countries and vice versa. We can say that there is no absolute winner. Wanting to activate an eSim for a single country, it is worth checking the proposals of each company from time to time. Or decide to rely on the operator with whom you are already familiar and have tested reliability on other trips.
The eSim market is in full swing, and potentially any operator could self-proclaim itself as the best ever. The important thing is to have a reliable service, fast data exchange, and ease of use and activation.
Conclusions and final recommendations
The summer of 2025 represents the ideal time to Definitely embrace eSIM technology, with a mature market offering solutions for every type of traveler.

Whichever you choose, the summer of 2025 will definitely mark the end of the era of expensive roaming fees and physical SIM cards to be replaced at every border. The eSIM revolution is finally complete, making global connectivity accessible, convenient and seamlessly integrated with the needs of the modern traveler.

