Expat

Travellers navigating San Jose airport delays in July 2026 faced a familiar mix of seasonal weather and surging visitor numbers, not a collapse of the country’s judicial or immigration computer platforms.

Costa Rica’s SJO Airport Delays Tied to Weather, Not IT Crash (Photo internet reproduction)

Weather and Peak Congestion Drive Delays

Heavy fog, persistent rain, and low cloud across Costa Rica’s Central Valley caused rolling flight disruptions at Juan Santamaría International Airport (SJO) throughout the month. When several delayed flights eventually landed close together, passengers encountered long immigration queues and total arrival times stretching to two or three hours.

Travel guidance for the July–early August peak season had already warned that SJO immigration could become a “patience-testing marathon.” The weather simply compressed the usual high-season pressure into more intense, concentrated bottlenecks.

No Judiciary or Immigration IT Failure in July 2026

Despite online speculation, available reporting and official sources contain no evidence of a July 2026 crash affecting judicial IT platforms or the immigration authority’s (DGME) digital systems at Costa Rican airports. Instead, the immigration technology was in the middle of a planned upgrade cycle.

A new international arrivals area had opened on 21 May 2026 and was fully in service by early July. Airport operator Aeris also confirmed that biometric eGates would be switched on by the end of July 2026, starting with Costa Rican citizens holding biometric passports, with foreign visitors to follow in later phases.

A History of Real System Outages

Costa Rica has experienced genuine technology failures that severely disrupted SJO and Liberia (LIR) airports in earlier years. On 23–24 September 2025, an electrical short-circuit disabled the national radar system, forcing authorities to close the country’s airspace for roughly five to seven hours and affecting at least 44 flights.

A separate incident, documented by the DGME before 2026, involved a new digital immigration platform that went down, forcing officers to switch to manual processing and generating very long queues at both international airports and several land border posts. A global CrowdStrike software defect on 19 July 2024 also caused significant flight delays at SJO and LIR, though that was not specific to Costa Rican government systems.

What Passengers Should Expect Now

Airport operators and civil aviation authorities consistently advise travellers to check flight status directly with their airline before heading to SJO, especially during the rainy season. When disruptions occur, normalisation is typically gradual, and passengers should prepare for slower manual processes if any system backup is activated.

From 1 July 2026, Aeris also introduced a paid SJO Fast Track service for priority access through arrivals and departures, offering one option for those wanting to reduce waiting time during peak periods. Sources include FlightStats, The Tico Times, TicosLand, the U.S. TravelGov advisory feed, Q Costa Rica, and The Traveler.

Frequently Asked Questions

Were San Jose airport delays in July 2026 caused by a computer system crash?

No. The delays were primarily driven by adverse weather conditions, including heavy fog and rain, combined with peak-season passenger volumes. There is no verified report of a judiciary or immigration IT platform failure at SJO during that period.

Has Costa Rica’s immigration computer system failed in the past?

Yes. Before 2026, the migration authority’s new digital immigration platform experienced an outage that forced officers to process travellers manually, creating long lines at SJO, LIR, and several land border posts. That incident was separate from the weather-related congestion seen in July 2026.

What improvements are being made to speed up immigration at SJO?

A new international arrivals hall opened in May 2026 and was operational by early July. Biometric eGates were scheduled to launch by the end of July 2026, initially for Costa Rican citizens, with a later phased rollout for foreign visitors.