New Los Cabos Overpass Crosses 50% Completion & Promises Faster Trips Between Airport And Resorts

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If you’ve inched your way through the infamous Fonatur roundabout on the way to or from the airport, this one’s for you.

We at The Cabo Sun have been following this project since the first cone went down, and there’s finally a big milestone to celebrate: the new overpass has pushed past the halfway mark and is officially ahead of schedule.

What Exactly Is Being Built At The Fonatur Roundabout?

Right now, Highway 1 traffic, local cars, buses, and airport shuttles all squeeze through the same circle in San José del Cabo. Authorities estimate more than 60,000 vehicles move through this zone every day, which is why it feels like a bottleneck even on “quiet” days.

The fix is a below-grade overpass (think: an underpass) that will send four lanes of through-traffic underneath the existing traffic circle over a stretch of about 1.5 kilometers. On top, the roundabout will still exist for local movements, but travelers heading between Los Cabos International Airport (SJD) and the resort corridor will no longer have to weave through the circle at all.

Officials have also tied in extra goodies: upgraded sidewalks, safer pedestrian crossings, bike lanes, and modernized signals as part of a broader makeover of this key junction.

How Far Along Is The Project Now?

According to Los Cabos’ urban development department, the project is sitting at roughly 53.95% completion and is about 15 percentage points ahead of the original work schedule. A recent session of the municipality’s Mobility Board also cited a similar figure (just over 50.7%) and highlighted that the build is progressing faster than planned.

That doesn’t mean the dig is wrapping up tomorrow. Current planning still points to a mid-2026 delivery for the full underpass, based on earlier federal and local briefings on the 14-month construction calendar. But the halfway mark is important—most of the heavy structural work on the bridges and the sunken roadway is now underway, including the four bridge structures that will handle both the roundabout and the return lanes.

What This Means For Your Airport Transfer Right Now

Here’s the part every traveler wants to know: is this still messing with my airport run?

So far, the answer has been “less than you’d think.” Airport director Francisco Villaseñor has previously confirmed that on-time performance at SJD remains normal, with no recorded missed flights tied to the roadwork. In our own recent drives for stories like Is Los Cabos Airport Traffic Improving Yet? we left about 3.5 hours before departure and the construction only added around 10 minutes to the ride.

Behind the scenes, officials and shuttle companies are using a whole toolbox of detours—gravel bypasses near Costa Azul, a newly paved “behind-Chedraui” shortcut, and of course the toll-road libramiento that skips the roundabout entirely.

For visitors, that translates into:

• Airport transfers are still running normally.
• The overpass work can slow you down at peak times, but it’s rarely trip-ruining.

How Much Faster Will It Be Once It’s Done?

Here’s the exciting part. Once the underpass is fully open, local engineers expect through-traffic times between SJD and the main hotel zones to drop by as much as 30%, especially in high season when the roundabout currently jams up.

We already broke down typical transfer times by zone in our dedicated Cabo airport travel-time guide, and even there we noted that construction could add 20–30% during peaks. When you combine the new overpass with the future inland “Interurban Axis” connector between Cabo San Lucas and San José del Cabo, plus the airport’s upcoming single-terminal conversion, you’re looking at a much smoother arrival experience overall.

Practical Tips While Construction Continues

Until the ribbon is cut, a few smart moves will keep your trip stress-free:

• Pad your airport run. Add 30 minutes to whatever our airport-time tool recommends for your zone while the overpass is still under construction.
• Aim for friendlier hours. Mid-day arrivals (roughly 11 a.m.–2 p.m.) and late-night departures tend to see the smoothest traffic near the roundabout.
• Ask for the toll road. Many shared shuttles already use it, but if you’re in a taxi or private car, tell your driver you’d like to “usar el libramiento” to bypass the worst congestion for a small fee.
• Watch for last-minute lane changes. Crews are constantly tweaking closures, signage, and temporary crossings to keep things moving and protect pedestrians—so follow workers’ instructions and posted signs.
• Stay informed. We at The Cabo Sun are updating readers regularly through pieces like our deep dive on major airport roadwork, our explainer on current traffic headaches, and our ongoing airport-traffic check-ins.

The Bottom Line For Travelers

The halfway mark at the Fonatur overpass is more than a construction statistic—it’s a real sign that your future airport rides are about to get faster and less stressful. In the short term, you may see machinery, cones, and shifting lane patterns on the drive in from SJD, but flights are operating normally, and transfers are still getting tourists to their resorts on time.

Keep giving yourself a little buffer, lean on the toll road and detours when you can, and know that every time you pass that construction zone, Cabo is one step closer to a smoother, quicker trip between the airport and the beach. We’ll keep driving it, timing it, and reporting back—because that’s what we do here at The Cabo Sun.