Central Asian Corridor (Congestion)

● Watching Crowded Route

Last updated: March 27, 2026

The Central Asian corridor (primarily Kazakh, Uzbek, and Tajik airspace) now handles traffic volumes far above its pre-2022 design capacity. Periodic flow restrictions cause delays and occasional rerouting.

This narrow corridor — roughly 300–500km wide between closed Russian airspace to the north and Iranian advisory airspace to the south — is the sole viable path for most Europe-to-Asia flights that cannot use Gulf routing. Eurocontrol issues ATFM flow restrictions on this corridor multiple times per week during peak periods. Airlines have reported average delays of 30–60 minutes per disruption event. The corridor is functioning but operating at structural stress.

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Routes that use this area

Berlin → Singapore

Via Hong Kong

Flowing

Istanbul → Singapore

Via Hong Kong

Flowing

London → Shanghai

British Airways / Air China Direct

Flowing

Amsterdam → Shanghai