Los Algodones border crossing guide 2026: data, docs, and the 10 PM trap

Los Algodones, in Baja California, is the closest dental and pharmacy hub on the Mexican side for travelers in the southwestern U.S. The town has roughly 300 dental clinics in a four-block radius and an equally dense pharmacy and eyewear district. Most visitors are U.S. and Canadian snowbirds wintering in Yuma, Quartzsite, or the Imperial Valley.

You cross via the Andrade port of entry, on the California side of the Colorado River, just east of Yuma. Andrade is small, mostly pedestrian, and runs short waits on a typical day, but it has one trap that catches first-timers every season: it closes at 10 PM Pacific. Everything in this guide is built around that constraint.

This post is independent. We have no relationship with any clinic, optical center, or pharmacy in Los Algodones, and nothing here is medical advice. The point is to handle the logistics so you can spend your day on the actual reason you went.

Why Algodones (the short version)

• Roughly 300 dental clinics, ~900 dentists in the same neighborhood. Cost for routine work (cleaning, fillings, crowns) typically runs 50-75% less than equivalent U.S. private-pay rates.
• Pharmacy district for over-the-counter and some prescription fills. The rules on what you can bring back are CBP's, not the pharmacy's. We cover them below.
• Optical for prescription glasses and contacts at a fraction of U.S. retail.
• Season: November through April is peak. Snowbirds drive the volume.

Andrade port of entry: hours and the 10 PM trap

Andrade is open 6 AM to 10 PM Pacific, every day. The closing time is hard. If you are still on the Mexican side at 10:01 PM, your options are:

• Wait until 6 AM at Andrade.
• Drive ~3 hours to San Luis Río Colorado and cross at San Luis (Arizona side, closes midnight Pacific).
• Drive ~5 hours to Tijuana and use Otay Mesa or San Ysidro (24/7).

Plan to be physically back through the U.S. inspection booth no later than 9:30 PM. Earlier in winter, when sunset is well before 6 PM, plan for daylight returns.

The official hours are posted on the CBP port page. They can change on U.S. federal holidays, so verify on the morning of your trip.

Live wait times and the best time to cross back

Andrade is one of the quietest ports in the system. Over the last 30 days, the overall median northbound wait is 15 minutes, and the lightest single hour is 5 AM at 5 minutes. The chart below is the full hour-by-hour pattern.

A few patterns worth flagging for medical tourists:

1. Mid-day Wednesday and Thursday are the cleanest crossing windows of the week for routine appointments. Wednesday at 6 AM and 6 AM Thursday hold a 0-minute median.
2. The early Monday morning slot (3 AM) shows occasional spikes to 90+ minutes, but is mostly an artifact of weekend traffic returning. Not a real pattern for medical tourists.
3. Friday and Saturday from late afternoon through closing are the heaviest hours overall. If you have a Saturday afternoon appointment, plan for a slower northbound crossing.
4. Sunday is light all day because most medical traffic is weekday-based.

The Andrade live page shows today's current wait alongside the 30-day pattern.

Documents you actually need

Crossing into Mexico at Algodones for the day:

• A valid passport book or U.S. passport card.
• For stays of 7 days or less in the immediate border zone (which Algodones is), Mexico does not require an FMM tourist permit. For longer stays or to travel beyond the border zone, the INM FMM is required.
• Mexican auto insurance if you drive across with a vehicle. Not required for pedestrians.

Crossing back into the U.S. at Andrade:

• Same passport book or card. Ready Lane (faster pedestrian lane) accepts the U.S. passport card and certain RFID-enabled documents. Verify your document on the CBP Ready Lane page.
• Be prepared to declare any goods, prescriptions, food, or currency over $10,000.

CBP publishes the official duty-free exemption rules. The current personal exemption for U.S. residents returning from Mexico is up to $800 in goods, including limits on alcohol (1 liter), cigarettes (200), and cigars (100). Anything over the exemption requires declaration and may be subject to duty.

Source: U.S. Customs and Border Protection

Bringing prescriptions and over-the-counter medication back

The rules on prescription medication are CBP's, not the pharmacy's. The pharmacy will sell you what is legal in Mexico; CBP enforces what is legal to bring back into the U.S.

The general rule: a personal-use supply (typically up to a 90-day supply per medication) of an FDA-approved prescription drug, with a valid prescription, may be brought back. Controlled substances (most opioids, ADHD stimulants, benzodiazepines, certain sleep aids) carry stricter rules and DEA scheduling considerations.

Always verify the current rules before you go.

CBP's official guidance on prohibited and restricted items, including prescription and over-the-counter medications. The page covers what FDA approval means for re-entry, controlled-substance restrictions, and the circumstances under which a CBP officer has discretion to seize. Read it before any pharmacy visit.

Source: U.S. Customs and Border Protection

If you are unsure about a specific medication, the safer move is to ask your physician to write a U.S. prescription and fill it at home.

Currency and large purchases

If you carry more than $10,000 in monetary instruments (cash, traveler's checks, money orders) into or out of the U.S., you must file a FinCEN 105 form. This is a declaration requirement, not a tax. Failure to declare can result in seizure.

CBP's page on monetary instrument reporting. The $10,000 threshold applies to combined currency carried by all members of a family or group traveling together. The form (FinCEN 105) can be filed at the port.

Source: U.S. Customs and Border Protection

For dental work paid in cash, keep your receipt. The dental work itself is a service performed in Mexico and not goods being imported, but a clear receipt makes the conversation with CBP simpler if asked.

Pets and the 2024 CDC dog rule

The CDC changed the rules for bringing dogs into the U.S. in August 2024. The new rules apply to all dogs entering the U.S., including those returning from a day trip to Mexico.

CDC's official page on dog importation rules. The 2024 update added requirements for proof of microchip, age verification (six months minimum), a CDC Dog Import Form, and additional vaccination documentation. Requirements are stricter for dogs that have been in countries with high dog rabies risk, but apply to all returning dogs.

Source: U.S. Centers for Disease Control and Prevention

If you are bringing your dog, read the CDC page before you go and bring printed copies of the relevant documentation.

Parking and walking the bridge

Most medical tourists park on the U.S. side and walk across. The standard parking is at the Quechan Casino & Resort lot on Quechan tribal land, immediately adjacent to the port of entry. The fee is typically $5-10 USD per day, paid on entry. Confirm current pricing at the lot.

From the parking lot, the walk to the U.S./Mexico inspection booth is roughly 5 minutes. The walk through Algodones from the Mexican-side booth to the dental district is another 3-5 minutes.

Holiday and seasonal patterns

• November through April (snowbird season) drives the bulk of medical traffic. Plan ahead and book appointments in advance.
• Holy Week (Semana Santa) brings significant southbound traffic from Yuma and Imperial Valley families heading to Mexico. Northbound waits at Algodones can also climb on the Saturday and Sunday of Holy Week.
• Thanksgiving and Christmas weeks are slower for dental traffic (clinics often close around Mexican holidays), but border traffic is heavy. If you have an appointment in either week, confirm it directly with the clinic.
• The DOS travel advisory for Mexico is at the state level. Baja California carries its own advisory which has been at "exercise increased caution" or "reconsider travel" depending on the period. Algodones itself is a small, calm border town, but read the current advisory.

The State Department publishes a travel advisory for Mexico with state-level guidance. Read the current Baja California section before any first trip and check for active U.S. embassy security alerts.

Source: U.S. Department of State

How we computed the wait time numbers

The hour-by-hour pattern above is the median northbound wait for Andrade per (day of week, hour of day) cell across the last 30 days, built from 285 individual CBP samples. Median is more honest than average for sparse-sample data because a single 240-minute outlier can drag a true 15-minute typical hour up to 50.

The raw data and methodology live in our public repo. Snapshots come from CBP's public BWT feed, which is the canonical source.

What to do with this

The Algodones day trip is mostly logistics. Pick a weekday morning appointment, park at Quechan, walk over, finish before 4 PM, walk back, declare what you bought, drive home. The wait is rarely the bottleneck. The bottleneck is forgetting that the port closes at 10 PM, or that Mexican-side construction can change parking access, or that a controlled substance you assumed was fine is actually scheduled.

If you treat the trip the way you would a U.S. medical appointment two hours from home — confirm the appointment, plan the parking, leave time for traffic — Algodones is one of the lowest-friction medical destinations on the border.