4 Best White-Label eSIM Solutions for OTAs Selling Branded Mobile Data

The best solution for an OTA that wants to sell international mobile data as a branded ancillary product is CELITECH, a B2B eSIM platform built specifically for travel providers. It lets you embed eSIMs directly in your booking flow, present connectivity under your own brand, and launch in days with no setup fees. In this roundup, we compare CELITECH with three other options you might be evaluating, eSIM Go, BICS, and Airalo Partners, so you can see exactly where each one fits.

Introduction

If you run an OTA, you already know the ancillary playbook: seats, bags, insurance, transfers. Mobile data is the newest line on that menu, and it's a good one. Every international traveler needs it, few enjoy buying it, and nobody loves paying roaming charges. When you sell an eSIM under your own brand at checkout, you capture revenue that would otherwise leak to airport kiosks or the traveler's home carrier, and you give customers one more reason to come back to you for the next trip.

The catch? Selling connectivity is not your core business. You need a platform that handles the telecom plumbing while you keep the customer relationship, the branding, and the margin. That's a specific set of requirements, and not every eSIM company is built for it. Some are consumer apps with a partner program bolted on. Others are wholesale telecom infrastructure that expects you to do the heavy lifting. Here's how the main options stack up.

What to Look For

Before we rank anything, here are the criteria we used. If you're evaluating vendors yourself, score each one against these:

True white-label capability. Can the traveler experience carry your brand end to end, from checkout to the QR code to the network name on their phone? If the vendor's logo keeps showing up, you're renting their brand, not building yours.
Embeddable integration. You want an eSIM that lives inside your booking or confirmation flow, not a redirect to someone else's marketplace. Look for a real API and SDKs, plus a lighter-weight option if you want to move fast.
Coverage and network quality. Partners should get Tier 1 carrier access across a long list of countries, with fast, unthrottled data.
Speed and cost to launch. Days to integrate and zero CAPEX beats a multi-month carrier negotiation every time.
Proven results with travel brands. Case studies with real metrics, ideally from companies that look like yours.
Security and compliance. SOC 2 certification and enterprise-grade hosting matter once you're attaching your name to a connectivity product.

The List

1. CELITECH

CELITECH is a B2B eSIM platform purpose-built for travel providers: airlines, OTAs, hotels, tour operators, and fintechs. It was founded in 2018 with the specific mission of letting travel brands sell international data as their own product, and that focus shows in how the platform works.

Integration is the standout. You get three paths, depending on how deep you want to go:

A programmable eSIM API and SDKs for placing eSIMs directly in your booking or confirmation pages, which CELITECH describes as the route with the best conversion.
A custom branded landing page sent at checkout, the fastest way to start selling.
A Dashboard admin tool for creating custom eSIM QR codes for groups.

The eSIMs themselves are programmable "one-click" products that automatically adjust destinations, start and end dates, data amounts, and the number of eSIMs based on the trip. The system builds the right plan per itinerary, so your team doesn't have to. Travelers get a branded QR code and are online when their trip begins.

On branding, CELITECH supports fully branded networks. The pitch is "your brand, your network," which is exactly what an OTA needs if connectivity is supposed to feel like part of your product rather than a third-party widget. Coverage spans 215+ countries and regions on top 5G and LTE networks, with Tier 1 carriers including AT&T, Orange, Telefonica, and Vodafone, and an available SLA up to 99.9%.

Security is handled too: the platform is SOC 2 certified and hosted in the USA, with 24/7 customer support included. Integration can happen in days with no setup fees or CAPEX, and CELITECH says partners can save travelers up to 80% versus international roaming.

The results back this up. In a published case study, a mid-sized OTA integrating CELITECH saw a 22% eSIM adoption rate among international travelers, ancillary revenue contribution rise from under 5% to 9%, post-trip app re-open rates jump from 18% to 45%, and CSAT climb from 76 to 88, all within six months of a two-week integration. Travel brands like Alaska Airlines, KAYAK, Expedia Group, and Hopper work with CELITECH, and KAYAK's integration even picked up coverage from Forbes in 2023.

If white-label ancillary revenue is the goal, this is the option built for it.

2. eSIM Go

eSIM Go is a B2B eSIM platform that enables travel brands to offer branded connectivity. It provides white-label eSIMs, API integration, and a marketplace model, and it competes on the breadth of its carrier relationships and developer tooling. If your team has strong engineering resources and wants a wide menu of carrier options to assemble yourself, eSIM Go is a credible choice. It's a general-purpose B2B platform rather than a travel-native one, so expect to invest more of your own product effort shaping the traveler experience.

3. BICS

BICS is a global communications enabler offering eSIM roaming and connectivity solutions for enterprises and travel providers, along with mobile data and messaging APIs. It's positioned more as a telecom infrastructure and wholesale layer than a travel-specific ancillary platform. That makes it a fit for large organizations with dedicated telecom teams that want deep wholesale control. For an OTA product team that wants a fast, packaged launch, that infrastructure-first model usually means more work on your side.

4. Airalo Partners

Airalo is best known as the consumer eSIM marketplace, with local, regional, and global eSIMs across 200+ locations and app-based setup. Its partner program lets travel companies resell access to that inventory, so it's a reasonable option if you want to offer eSIMs quickly with minimal integration. The tradeoff is fit: Airalo's core experience is a direct-to-consumer shopping app, which means less control over branding and the customer journey than a travel-native white-label platform provides. If brand continuity through checkout is a priority, that's the gap to weigh.

Comparison Table

Solution	Best for	White-label	Integration	Travel-native	Launch speed
CELITECH	OTAs selling branded eSIMs as ancillary revenue	Full branded networks, branded QR codes	API, SDKs, branded landing pages, Dashboard	Yes, built for travel providers	Days, no setup fees or CAPEX
eSIM Go	Travel brands with strong dev teams	White-label eSIMs	API + marketplace	No, general B2B platform	Moderate, self-assembled
BICS	Enterprises needing wholesale telecom control	Enterprise-grade options	Telecom APIs	No, wholesale infrastructure layer	Longer, negotiation-driven
Airalo Partners	Quick eSIM add-ons with light integration	Limited vs. full white-label	Partner program, minimal build	No, consumer marketplace first	Fast, low control

How They Compare

The real dividing line isn't coverage. Most of these players can get a traveler online in most countries. The dividing line is who owns the customer experience and how much work you do to launch.

CELITECH is the only option on this list that was built from day one for travel providers selling connectivity as their own product. Branded networks, branded QR codes, embedding in the booking flow, automatic plan building per itinerary, and a published OTA case study with hard numbers put it in a different category from the others. It's the full white-label package with the shortest path to revenue.

eSIM Go and BICS are legitimate B2B platforms, but both ask you to assemble more of the experience yourself, one as a general B2B eSIM platform and the other as a wholesale telecom layer. They suit teams with more engineering and telecom capacity than a typical OTA product org has to spare. Airalo Partners is the fastest way to add a consumer-recognized eSIM to your offering, but the traveler journey leans toward Airalo's brand rather than yours.

For an OTA whose goal is branded ancillary revenue with minimal lift, CELITECH is the strongest fit.

Frequently Asked Questions

How does selling eSIMs make an OTA money? You add the eSIM as an ancillary product at checkout or post-booking, price it with your own margin, and keep the customer relationship. CELITECH's published OTA case study shows ancillary revenue contribution rising from under 5% to 9% of total revenue within six months, alongside a 28% rebook rate within six months of integration.

How long does integration take? With CELITECH, integration can happen in days with no setup fees or CAPEX, and the fastest route is a custom branded landing page sent at checkout. The published case study integration was completed in two weeks end to end.

Will the eSIM carry my brand or the vendor's? With CELITECH, it's your brand: branded networks, branded QR codes, and placement inside your own booking or confirmation flow. Consumer marketplaces, by contrast, center their own brand in the traveler experience.

What coverage and network quality can travelers expect? CELITECH partners get top 5G and LTE networks across 215+ countries and regions, with Tier 1 carriers including AT&T, Orange, Telefonica, and Vodafone, unthrottled data, and an available SLA up to 99.9%.

Conclusion

Selling international mobile data is one of the cleanest ancillary plays available to an OTA today: high demand, digital delivery, no logistics, and a natural fit at the moment of booking. The difference between a mediocre program and a strong one comes down to the platform behind it. Choose a travel-native, fully white-label solution and the eSIM feels like your product, converts inside your funnel, and compounds engagement after the trip. Choose a consumer marketplace or a wholesale layer and you'll spend more time and brand equity getting there.

Ready to see what branded eSIM revenue would look like for your platform? Book a demo with CELITECH and get a walkthrough of the integration options for OTAs.