Best time to cross · Michigan
Best time to cross the Ambassador Bridge border
The lowest-wait and busiest windows at Ambassador Bridge, by weekday and hour, from ten years of CBSA readings (pre-2020).
Pre-2020 pattern. Based on the CBSA’s 2010–2020 hourly readings for Canada-bound passenger vehicles at Ambassador Bridge. Use it to compare days and hours, not to expect a specific wait today. Check the live wait before you leave.
Lowest-wait windows
Ranked by the 90th percentile (one reading in ten was this long or longer), then the median. Hours are local time at the crossing.
- Tuesday 15:00: median 0 min, 90th percentile 0 min (575 readings)
- Wednesday 07:00: median 0 min, 90th percentile 0 min (572 readings)
- Wednesday 21:00: median 0 min, 90th percentile 0 min (572 readings)
- Monday 21:00: median 0 min, 90th percentile 0 min (568 readings)
- Tuesday 07:00: median 0 min, 90th percentile 0 min (568 readings)
Busiest windows
- Friday 18:00: median 10 min, 90th percentile 30 min (552 readings)
- Friday 17:00: median 10 min, 90th percentile 30 min (554 readings)
- Friday 19:00: median 0 min, 90th percentile 30 min (514 readings)
- Sunday 18:00: median 0 min, 90th percentile 30 min (524 readings)
- Sunday 19:00: median 0 min, 90th percentile 30 min (530 readings)
Over April 2010 to March 2020, Sunday 00:00 had the lowest median passenger-vehicle wait (0 min, 518 readings); Friday 17:00 the highest (10 min, 554 readings).
Weekday by hour
| Day | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sun | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 10 | 20 | 25 | 25 | 20 | 30 | 30 | 30 | 30 | 20 | 15 | 0 | 0 |
| Mon | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 10 | 20 | 20 | 10 | 0 | 0 | 0 | 0 |
| Tue | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 10 | 0 | 0 | 0 | 0 | 0 |
| Wed | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 15 | 15 | 10 | 0 | 0 | 0 | 0 |
| Thu | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 10 | 20 | 25 | 15 | 5 | 0 | 0 | 0 |
| Fri | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 10 | 10 | 10 | 15 | 20 | 30 | 30 | 30 | 20 | 15 | 10 | 5 |
| Sat | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 10 | 15 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 10 | 10 | 0 |
| Day | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sun | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Mon | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Tue | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Wed | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Thu | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Fri | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 10 | 0 | 0 | 0 | 0 | 0 |
| Sat | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Darker cells are longer waits; a dot means too few readings. See the history page for the weekday summary and the period covered.
Holidays and events
This series is not broken out by holiday, so we do not state holiday waits. Long weekends and summer Fridays are the periods when the busiest windows above typically last longer; compare against the live figure on the day.