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Sonora Arizona

Best Time to Cross San Luis 1

BEST DAY TO CROSS
Tuesday ~5m
Typical wait in the early morning (12–6 AM). During the day, around 7 PM it's ~21m.
Live times Hourly chart
Avoid: Sunday in the early morning — up to ~1h 14m
Every day BEST TO WORST
  1. Tuesday The best
    ~5m The calmest. Barely any line before dawn.
  2. Wednesday #2
    ~6m Good before dawn; midday climbs only a little.
  3. Thursday #3
    ~6m Good before dawn; midday climbs only a little.
  4. Friday #4
    ~6m Good before dawn; midday climbs only a little.
  5. Saturday #5
    ~6m Good before dawn; midday climbs only a little.
  6. Sunday #6
    ~13m Good before dawn; midday climbs only a little.
  7. Monday The worst
    ~14m The worst of the week. Avoid 10 AM–2 PM.

Historical reference · CBP

Week of Labor Day 2025

General lane · Aug 29–Sep 4

  1. 3 days before
    Average
    16m
    Range
    5m–1h

    24/24 h

  2. 2 days before
    Average
    29m
    Range
    5m–1h

    24/24 h

  3. 1 day before
    Average
    49m
    Range
    5m–1h 40m

    24/24 h

  4. Holiday
    Average
    1h 29m
    Range
    5m–3h

    23/24 h

  5. 1 day after
    Average
    1h 6m
    Range
    10m–2h 30m

    23/24 h

  6. 2 days after
    Average
    44m
    Range
    5m–1h 30m

    24/24 h

  7. 3 days after
    Average
    28m
    Range
    5m–1h 10m

    24/24 h

Source: CBP · Labor Day 2025 · General lane.

A single week for reference; this is not a forecast.

General lane · CBP's official hourly statistics (last 15 days). Closed hours don't count.

Frequently asked questions

What is the best time to cross San Luis 1?
Typically Tuesday at 1:00 AM, with an average wait of ≈5m in the general lane. The number comes from CBP's official hourly statistics and refreshes daily.
What is the worst time to cross San Luis 1?
The heaviest point of the week is usually Sunday at 12:00 AM, with a typical wait of ≈1h 14m. Check the live wait times before you leave — any given day can behave differently from the typical pattern.
Where does this data come from and how reliable is it?
From CBP's official hourly statistics for San Luis 1: we take the most recent typical pattern for each weekday (the averages are CBP's), so it reflects the usual behavior, not a forecast. Any given day can vary with weather, holidays or operations — so check the live wait times before you leave.
Is the best time the same for every lane?
This page summarizes the General lane, the line most people use. Trusted lanes (SENTRI or NEXUS, and Ready Lane where available) usually move at their own pace; compare them live on the San Luis 1 page.