Listing your holiday home on multiple platforms is smart — but only if your calendars stay in sync. This complete guide explains exactly how to do it right.
The moment you list your holiday home on a second platform, you face a problem that has ended countless hosts' enthusiasm for multi-channel listing: how do you keep all your calendars in sync?
A booking on Airbnb should immediately block the same dates on Booking.com, Vrbo, your direct booking website, and anywhere else you are listed. If it does not, you risk accepting two bookings for the same dates — which means cancelling one guest, damaging your reputation, and potentially paying a penalty to the OTA.
This guide explains how calendar sync works at a technical level, how to set it up correctly, and how to avoid the common mistakes that cause double bookings even on hosts who think they have sync set up properly.
Most OTA platforms — Airbnb, Booking.com, Vrbo, and dozens of others — use a universal format called iCal (or iCalendar) to share availability data. An iCal feed is a URL that, when fetched, returns a list of blocked dates for a property.
Here is the process:
This is called a two-way sync, and when set up correctly between all your platforms, it ensures that a booking on any channel blocks the corresponding dates on all others.
Here is the thing that catches many hosts out. iCal sync is not real-time. Each platform decides how often to fetch the URLs it has imported. This interval varies:
This means that after a booking is confirmed on Airbnb, it can take up to six hours for Vrbo to reflect that the dates are blocked. During that window, a second booking on Vrbo for the same dates is possible.
For most hosts with moderate booking volumes, this lag is an acceptable risk. For hosts in popular areas during peak season — who may receive multiple enquiries per day for the same dates — it is a genuine problem.
Some property management platforms have direct API connections with Airbnb, Booking.com, and Vrbo. Rather than relying on iCal polling, these API connections send and receive booking data in real time.
When a booking arrives via Airbnb's API, the management platform immediately updates the calendar and pushes a block to all other connected channels. This effectively eliminates the sync delay that iCal creates.
If you are serious about multi-channel listing, a management platform with direct API connections is worth the investment. The cost of one cancelled booking due to a double booking almost always exceeds months of software subscription fees.
If you are using iCal sync (the most common setup for independent hosts), here is how to do it correctly.
Airbnb: Go to your listing > Availability > Sync Calendars > Export Calendar. Copy the URL.
Booking.com: Go to your property > Calendar > iCal export. Copy the URL.
Vrbo: Go to your listing > Calendars > Import/Export > Export your calendar. Copy the URL.
For each pair of platforms, import the export URL from one into the other. For three platforms (A, B, C), you will do six imports in total:
This ensures that a booking on any platform blocks the dates on all others.
Do not assume it is working — test it. Block a date manually on Platform A and wait 2–3 hours. Then check that the same date is blocked on Platforms B and C. If it is not, check that you imported the correct URL and that the import is still active.
Some management platforms and OTAs allow you to set a preparation or buffer period between bookings. Even a 24-hour buffer on each side of a booking gives the sync time to propagate before a new booking can be accepted — dramatically reducing double booking risk.
Managing iCal exports and imports across multiple OTAs by hand is workable for one or two properties. For anything more, a central management platform is far more efficient.
With a platform like LetPilot, you connect each OTA once. The platform maintains all the sync relationships on your behalf, monitors for conflicts, and gives you a single master calendar that reflects availability across all channels. When you block a date in your management platform, it updates all connected channels. When a booking arrives on any channel, it blocks the date everywhere else.
This centralised approach also gives you:
Even hosts who have "set up" calendar sync often make these errors:
Importing Airbnb into Booking.com but not Booking.com into Airbnb. This means Booking.com will respect Airbnb bookings but Airbnb will not respect Booking.com bookings. Always set up the sync in both directions.
OTAs occasionally regenerate iCal URLs — for example, if you change your listing significantly. If Platform B is still importing the old URL from Platform A, the sync silently stops working. Check your iCal connections periodically and after any major listing changes.
Hosts who add a direct booking website sometimes forget to sync its calendar with their OTA listings. A booking made directly is not automatically reflected on Airbnb or Booking.com unless you export the direct booking calendar and import it into each OTA.
If you manually block dates in one platform (for personal use, for example) without also blocking them elsewhere, those manual blocks do not propagate via iCal sync — the iCal feed only exports confirmed bookings, not manual holds, depending on the platform. Always check how your platform handles manual blocks in the exported feed.
Some hosts think that by forwarding booking confirmation emails to themselves, they can manually block dates in time to prevent double bookings. This approach is slow and error-prone. It takes only one overlooked email during a busy weekend to create a disaster.
Once your sync is working correctly, you can use calendar rules to manage your availability more strategically:
LetPilot handles calendar sync across all major OTAs automatically — import your iCal feeds once and LetPilot keeps everything in lockstep, with conflict detection and a single master calendar view. Try LetPilot free at letpilot.co — no credit card required.