If you came here because a reminder fired fifteen minutes before a meeting that needed forty minutes of driving, this page is about why that happens and what to do instead.
What Outlook actually offers
Two things, and it is worth being precise about the difference.
A fixed reminder. You can be notified a set number of minutes before an event — 15, 30, 60. That number does not change. It is the same on a clear Tuesday and during a closure on your route.
A manual travel-time block. You can create a separate calendar entry before the meeting to reserve the drive. This is genuinely useful for protecting the time in your schedule, and it is what most "add travel time in Outlook" guides describe. But the length is whatever you typed when you made it.
Neither is traffic-aware. Both are decided in advance, by you, and then frozen.
The iOS setting people remember
On Microsoft's own Q&A forum in May 2024, a user reported that the time-to-leave options in Outlook for iOS were missing: "There are a bunch of posts and previous advice on how to turn the feature on, however these options are now missing." They asked whether the feature was returning.
The Microsoft representative who replied pointed to general calendar notification settings — default reminder values — rather than the location-based alert the user was asking about. The thread contains no official statement about whether the feature was removed, when, or whether it is coming back.
So if you have been hunting through Outlook's settings for a toggle you are sure used to exist, that is the honest state of it: other people report the same thing, and Microsoft has not addressed it publicly.
Why calendars are structurally bad at this
This is worth understanding, because it explains why the problem is not a settings issue you can fix.
A calendar event is created in advance. Whatever travel time you attach to it — a reminder offset, a blocked entry — is a decision made at creation time. The traffic that matters happens later, usually on the morning of the meeting, and often in the thirty minutes before you planned to leave.
A calendar would have to do three things to solve this properly: know where you are starting from, check live conditions on that specific route, and then move the alert. That is a traffic product, not a scheduling product. Calendars that bolt on travel time are approximating it with a static number, which works until the one day it matters.
What actually works
Block the travel time generously. If you are keeping it manual, pad it for the worst version of that drive rather than the average. This costs you calendar space and solves the problem most of the time.
Set the reminder off the departure, not the meeting. If the drive is usually 40 minutes, a 45-minute reminder is more useful than a 15-minute one. Crude, but it fails in the right direction.
Use something that watches the route. A leave-time app checks live conditions on your actual route and tells you when to go — which is the thing the calendar cannot do. BoardSpy does this: it checks your saved route before you leave, recommends a departure time, and sends alerts for traffic and weather on that route. For meetings specifically, its calendar alarms set a leave-by alert for a place, and a meeting alarm for calls that need no travel at all.
See also BoardSpy vs Google Calendar time to leave for the same comparison on the Google side.
If you are on Google or Apple instead
The problem is not unique to Outlook, and the details differ by platform:
- Google Calendar time to leave not working
- Apple Calendar time to leave not working
- How to add travel time to Google Calendar
Frequently asked questions
Does Outlook have a time to leave notification?
Not a traffic-aware one. Outlook can remind you a fixed number of minutes before an event, and you can block travel time as a separate calendar entry, but neither adjusts for conditions on the day. Users on Outlook for iOS have reported that a time-to-leave setting they previously used is no longer present, and Microsoft has not published an explanation.
Why did time to leave disappear from Outlook on iPhone?
Microsoft has not said. A May 2024 thread on Microsoft's Q&A forum records a user reporting the options were missing and asking whether the feature was returning; the reply addressed default notification timings rather than the location-based alert, and no official statement about removal or return appears in the thread.
How do I add travel time to an Outlook calendar event?
Create a separate calendar entry immediately before the meeting covering the drive. That reserves the time in your schedule and stops other meetings landing on it. The duration is whatever you set, so it does not change with traffic — pad it for the bad version of the trip rather than the typical one.
Can Outlook calculate my travel time from traffic?
No. Doing that requires knowing your starting location, checking live conditions on your specific route, and then moving the alert accordingly. That is what a traffic or departure-timing app does. A calendar stores what you entered.
What is the difference between a reminder and a leave-time alert?
A reminder fires a fixed interval before an event, decided when you created it. A leave-time alert is calculated from current conditions on your route and fires when you actually need to go — which may be earlier or later than any fixed offset.
What should I use to get a real departure warning for meetings?
A leave-time app that reads your route rather than only your calendar. BoardSpy recommends when to leave for a saved route, sends pre-departure traffic and weather alerts, and offers calendar alarms that set a leave-by alert for events with a location. Download it here.