How to Sync Airbnb, Vrbo and Booking.com Calendars

The short answer: every listing on Airbnb, Vrbo and Booking.com has an iCal export link and an import field. To sync Airbnb and Vrbo, paste each platform's export link into the other's import field. Each then blocks the dates booked on the other. It's free and needs no channel manager. Two limits: iCal carries booked dates only (no prices or guest details), and each platform re-checks imported calendars on its own schedule, from about 30 minutes to a few hours.

Two platforms need two links. Three need six. This guide shows where each platform keeps its links, how often each one checks them, and how to get down to one link per channel.

Where each platform keeps its iCal links

Check intervals are the median gap between fetches of feeds these platforms import from iCal Merge, measured in October 2026 across 3 to 8 listings per platform. They are typical, not guaranteed. Airbnb also has a Refresh button on each imported calendar.

Links are per listing (per room type on Booking.com), so two properties means two sets. If a link starts with webcal://, change it to https:// before pasting it into a booking platform. New to these links? The iCal feed explainer covers what they are.

Three ways to sync, compared

A channel manager (Hostaway, Guesty, Smoobu and others) uses each platform's API instead of iCal. It syncs in seconds and handles prices and messages too. Past a handful of listings it pays for itself. For one to a few properties, iCal is enough.

Option 1: link the platforms to each other

To sync an Airbnb calendar with Vrbo, copy the Airbnb export link into Vrbo's import field, then the Vrbo export link into Airbnb's. Do both. Import only one way and bookings on the other platform block nothing. Add Booking.com and each platform imports the other two: six links. Every new channel means updating every existing one.

Option 2: one merged feed, one link per channel

Create a calendar in iCal Merge and add each platform's export link as a source. Every reservation lands in one calendar, labelled with the platform it came from. One listing on three platforms fits the free plan.

Then, on the calendar's page, click Create channel feeds. Each platform gets one link with every other platform's bookings but not its own. Paste the Airbnb one into Airbnb's Availability → Connect calendars → Import calendar, the Booking.com one into Rates & Availability → Sync calendars, and the Vrbo one into Calendar → Import/Export. A fourth platform later means one more source and one more import. Channel feeds are part of Pro.

Don't import the combined link into a channel

This is the most common mistake with any merge tool. The combined link has every platform's bookings, including the importing platform's own. Airbnb gets its own reservations back as outside blocks, and a cancelled night can stay blocked. Keep the combined link for your own calendar app and give each channel its channel feed. If a channel already imports the combined link, iCal Merge flags it on your calendar page and emails you the fix.

See every booking in Google or Apple Calendar

Subscribe to the combined link from Google Calendar (Other calendars → + → From URL), Apple Calendar (File → New Calendar Subscription) or Outlook, and every reservation sits next to the rest of your week. Subscribe, don't import. An import is a one-time copy; a subscription keeps fetching. Google re-checks about every 6 hours and Apple far more often, so check the platform itself for same-day changes.

Catch the double-bookings that slip through

Platforms check imports on a delay, so two guests can still book the same night inside that window. With every channel in one calendar, iCal Merge watches for it. Double-booking alerts (Pro) email you when a reservation on one platform overlaps a booking or block on another. A turnover buffer blocks the days after each checkout. More on this: how to stop double-booking across calendars.

Several properties

Give each property its own merged calendar with that unit's channels, so each gets its own channel feeds. For planning, subscribe to every unit's combined link in one calendar app. Past a few units, most hosts move to a channel manager. Until then, this is the setup with the fewest links to maintain.