Tour operators communicate with guests across three main channels: email, SMS, and WhatsApp. Most default to email because it is familiar and free. Some add SMS for time-sensitive messages. But the data overwhelmingly favors WhatsApp as the primary channel for guest communication in tourism — and the gap is widening every year.
The open rate gap
The single most important metric for any guest communication is whether the message gets seen. A perfectly written review request, a beautifully designed photo gallery, or a compelling upsell offer are all worthless if the guest never opens them.
Here are the open rates by channel for tourism businesses:
- Email: 21% average open rate. For tourism-specific emails (post-tour follow-ups, review requests), the rate drops to 15-18% because they compete with hundreds of other emails in the guest's inbox.
- SMS: 82-90% open rate. Significantly better than email. But SMS has severe limitations that make it impractical for tourism use cases (covered below).
- WhatsApp: 98% open rate. Messages are read within an average of 3 minutes. For post-tour messages sent while the guest still has their phone in hand, the read time is closer to 30 seconds.
The difference between a 21% and 98% open rate is not incremental — it is a fundamental shift in what becomes possible. When 98% of guests see your message, every downstream action (reviews, tips, photo shares, rebookings) scales proportionally.
International tourist reach
Tourism is inherently international. A walking tour in Barcelona might have guests from Germany, Brazil, South Korea, Australia, and the United States — all in the same group. This creates a communication problem that email and SMS handle poorly.
The email problem
Email works everywhere, but it works poorly everywhere. International travelers often use email addresses they check infrequently while traveling. Gmail's promotions tab buries tour-related emails. Guests using corporate email addresses may never see marketing messages. And collecting email addresses at the end of a tour — while guests are eager to leave — is awkward and error-prone. Misspelled email addresses are unrecoverable.
The SMS problem
SMS costs vary wildly by country. Sending an SMS to a German phone number from a Spanish tour operator can cost $0.07-0.15 per message. Multiply that across an international guest list and costs escalate quickly. Worse, many international tourists disable SMS roaming to avoid charges, meaning your message never arrives. SMS also lacks rich media support — no photos, no interactive buttons, no payment links.
The WhatsApp advantage
WhatsApp has over 2 billion active users across 180+ countries. It is the dominant messaging app in Europe, Latin America, Africa, the Middle East, India, and Southeast Asia. For a tour operator serving international guests, WhatsApp is the only channel where you can reasonably expect every guest to receive your message regardless of their home country.
Critically, WhatsApp works over wifi. International tourists who have turned off cellular data to avoid roaming charges can still receive WhatsApp messages the moment they connect to any wifi network — which, in most tourist areas, is constantly.
Rich media changes the game
The communication needs of a tour operator go far beyond plain text. You need to send photos, payment links, location pins, review links, and merchandise catalogs. Here is how each channel handles rich media:
- Email: Supports images and links, but images often fail to load (blocked by email clients), links get flagged as spam, and the guest must leave their email app to complete any action.
- SMS: Text only. MMS (multimedia messaging) is unreliable across carriers and countries, expensive, and often compressed to the point of being unusable. Payment links via SMS look suspicious and have low click rates.
- WhatsApp: Full photo and video delivery at high quality. Payment links open in the in-app browser. Interactive buttons let guests take action without typing. Location sharing works natively. Documents, voice messages, and contact cards are all supported.
For tour operators, this rich media support is not a nice-to-have — it is essential. Delivering branded tour photos via WhatsApp means the guest receives, views, and shares them all within the same app. A tipping link in WhatsApp opens a payment page in one tap. A review request with interactive rating buttons gets completed in under 30 seconds.
No app download required
This point deserves its own section because it is the most common objection: "But not everyone has WhatsApp." In practice, this objection does not hold up for international tourism.
WhatsApp is pre-installed on most Android phones sold outside the United States. In Europe, over 85% of smartphone users have WhatsApp. In Latin America, the figure exceeds 90%. In India, it is over 95%. The only significant market where WhatsApp penetration is lower is the United States — and even there, adoption has grown to roughly 35-40% of smartphone users, skewing heavily toward people who travel internationally (exactly your target audience).
For the small percentage of guests who do not have WhatsApp, the QR code can fall back to a mobile web experience. But optimizing your entire communication strategy for the 2-5% who might not have WhatsApp — at the expense of the 95-98% who do — is a losing trade.
Multi-currency payment support
When a Brazilian tourist wants to tip a guide in Lisbon, or a Japanese traveler wants to buy a photo package in Mexico City, currency conversion matters. Email payment links force guests to a web checkout where currency confusion causes drop-offs. SMS cannot handle payments at all.
WhatsApp-integrated payment flows can detect the guest's phone region and present prices in their local currency with transparent conversion rates. A guest sees "$10 USD (approximately 50 BRL)" rather than being surprised by a foreign currency charge on their credit card statement. This transparency increases payment completion rates by 15-25% compared to single-currency checkout pages.
The engagement loop
Perhaps the most undervalued aspect of WhatsApp for tourism is the persistent conversation. When a guest scans a QR code and messages your WhatsApp business number, that conversation thread stays in their chat list. Weeks or months later, you can re-engage that guest with:
- A seasonal tour promotion
- A referral discount for bringing friends
- A reminder to complete a review they started but did not finish
- New tour photos from a route they walked
- A rebooking offer for return visitors
This is not possible with SMS (guests block promotional texts) or email (newsletters go to promotions tab). WhatsApp messages appear in the main chat list, alongside messages from friends and family. They get seen.
Compliance and opt-in
WhatsApp Business API requires explicit opt-in from guests before you can send them messages. This is actually an advantage: because guests must initiate the conversation (by scanning a QR code or clicking a link), you have built-in GDPR and privacy compliance. There is no question about consent — the guest literally started the conversation.
Compare this to email, where operators often collect addresses without clear opt-in and risk spam complaints, or SMS, where unsolicited messages can result in carrier penalties and fines.
Cost comparison
For a tour operator sending 1,000 post-tour messages per month:
- Email (Mailchimp/Brevo): $0-20/month for the platform, but the effective cost per action (review, tip, photo view) is high because only 21% open the email
- SMS (Twilio/similar): $50-150/month depending on destination countries, plus carrier surcharges for international numbers. Limited to text only.
- WhatsApp Business API: Conversation-based pricing varies by country, but user-initiated conversations (from QR code scans) are free for 72 hours. Most post-tour engagement happens within that free window.
When you factor in the conversion rates — 98% open rate versus 21% — the cost per actual guest interaction is lowest on WhatsApp by a significant margin.
Making the switch
Transitioning from email-first to WhatsApp-first guest communication does not require abandoning email entirely. Email still has a role for pre-booking confirmations and detailed itineraries. But for post-tour engagement — the interactions that drive reviews, tips, photo shares, and rebookings — WhatsApp delivers 4-5x better results across every measurable metric.
The implementation is straightforward: a QR code at the end of every tour that opens WhatsApp. The automated flow handles review collection, tipping, photo delivery, and follow-up messaging. Guides do not need to change their routine. The technology handles the channel shift behind the scenes.
Related: See how inPlace uses WhatsApp for review collection, digital tipping, and photo delivery — or read about QR codes for tour operators.