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MLOS: Minimum Length of Stay Explained

By OnlineHotelier Team 5 min read

What is MLOS?

MLOS = Minimum Length of Stay

A restriction that requires guests to stay a minimum number of nights when booking certain dates. Example: "2-night minimum on weekends."

Why Use MLOS?

MLOS is a revenue management tool to maximize occupancy and revenue during high-demand periods.

Example: Long Weekend Problem

Scenario: Independence Day falls on Thursday (15 Aug). You expect high demand Thu-Fri-Sat.

Without MLOS: Guests book only Friday (peak night). Thursday and Saturday stay empty.

With MLOS (2 nights): Guests must book Thu+Fri or Fri+Sat. You fill more nights!

When to Use MLOS

Situation Recommended MLOS
Long weekends (Fri-Sat-Sun) 2-night minimum
Major festivals (Diwali, New Year) 2-3 night minimum
Special events in city Based on event duration
Peak season at resorts 2-3 night minimum
Wedding season Consider based on demand
Normal weekdays No restriction (1 night OK)

Types of Stay Restrictions

Restriction Full Form What It Means
MLOS Minimum Length of Stay Must stay at least X nights
MaxLOS Maximum Length of Stay Cannot stay more than X nights
CTA Closed to Arrival Cannot check in on this date
CTD Closed to Departure Cannot check out on this date
MLOS Through Stay Through Must stay through specific date

MLOS Example Scenarios

Scenario 1: Beach Resort - Goa

Dates: Christmas Week (Dec 22-28)

Strategy: 3-night MLOS starting Dec 22, 23, 24

Result: Guests book longer stays instead of just Christmas Eve

Scenario 2: Business Hotel - Mumbai

Dates: Trade fair week

Strategy: 2-night MLOS during fair dates

Result: Exhibitors book multiple nights, higher total revenue

How to Set MLOS

  1. In your PMS: Set MLOS for specific dates in rate/restriction settings
  2. On OTAs: Each extranet has restriction settings - apply MLOS there
  3. Via Channel Manager: Push MLOS to all channels from one place

Step two is where most properties lose the plot. Every OTA keeps its own restriction settings, so a two-night minimum has to be set separately in each extranet you sell through. If your rooms are not yet live across the major platforms, a hotel OTA listing gets each channel set up correctly from the start, restrictions included, rather than leaving you to retrofit them later.

MLOS Best Practices

  • Apply early: Set MLOS weeks/months before peak dates
  • Monitor pickup: If bookings are slow, consider removing MLOS
  • Combine with pricing: Use MLOS + rate increase together
  • Be consistent: Apply same MLOS across all channels (rate parity)
  • Communicate clearly: Guests should see "2-night minimum" when searching

MLOS is one lever for protecting peak-date revenue. For the full set, including pricing, channel mix and ancillary spend, see how to increase hotel revenue.

MLOS only works if the restriction actually reaches every channel. A restriction set in your PMS but missing from one OTA extranet keeps selling single nights on that channel and quietly undoes the whole strategy. A free OTA listing audit checks that your restrictions and rates are applying consistently everywhere you sell.

Pro Tip: Create a "2-night package" with slight discount instead of strict MLOS. Same effect, better guest perception!

MLOS Risks

  • Lost bookings: Guests who can only stay 1 night will book elsewhere
  • Complex to manage: Must update restrictions regularly
  • OTA penalties: Some OTAs discourage heavy restrictions
  • Last-minute gaps: If MLOS is too strict, you may have unsold nights
Rule of Thumb: Use MLOS when you're confident demand exceeds supply. If uncertain, keep it flexible and rely on dynamic pricing instead.

Related Tools & Guides

Demand Calendar

Spot high and low demand dates so you price ahead of the market

Revenue Management Tool

Track occupancy, ADR and RevPAR in one place

Lead Time Guide

Use booking window data to price ahead of demand

Overbooking Guide

How to overbook safely without walking guests

Frequently Asked Questions

What is MLOS in hotel revenue management?
MLOS stands for Minimum Length of Stay. It is a restriction that requires guests to book for a minimum number of nights to get a particular rate. For example, setting MLOS of 2 means guests must book at least 2 nights. Hotels use MLOS to protect high-demand nights (like weekends or festivals) from single-night bookings that displace multi-night stays.
When should a hotel use MLOS?
Hotels should apply MLOS around high-demand periods: long weekends, local festivals, weddings, or major events nearby. For example, if Diwali falls on a Thursday, setting MLOS of 3 nights prevents guests from booking just the peak Thursday night, forcing them to also take Wednesday and Friday, maximising total revenue across the period.
What is the difference between MLOS and CTA?
MLOS (Minimum Length of Stay) requires guests to stay a minimum number of nights. CTA (Closed to Arrival) blocks any new bookings from checking in on a specific date entirely. Both are revenue management restrictions, but CTA is more aggressive. It prevents any arrival on that date, while MLOS allows arrivals as long as they stay long enough.
Do OTAs support MLOS restrictions?
Yes, major OTAs like Booking.com, Expedia, and MakeMyTrip support MLOS restrictions. You can set MLOS directly in the OTA extranet or through your Channel Manager, which syncs the restriction across all platforms simultaneously. Without a Channel Manager, you would need to manually update each OTA, which is time-consuming and error-prone.