LHR → SIN (FLIGHT PLAN MONITOR)
Direct Great Circle
Active Flight Route
Restricted FIR
T+ 00:00 (DEP)
Route Distance
6,350 nm
+420 nm (+7.1%)
En-Route Time
13h 14m
+52 min detour
Added Fuel Burn
6.41 t
+$5,640 fuel cost
War Risk Premium
$18,250
Corridor Cleared
⚠
Airspace Conflict Avoidance Active

Direct great circle intercepts Tehran FIR (OIIX) currently under level 3 closure. Automatic reroute diverted traffic through the southern Saudi/Arabian Gulf corridor, adding 420 nm and 52 minutes of en-route flight time.

Active Waypoint & FIR Transition Audit 8 Fixes Evaluated

Fix Identifier Coordinates Airspace / FIR FIR Status Cumulative Dist Safety Clearance
About Geopolitical Airspace Modeling, FIR Closures & War Risk Surcharges

Civil aviation relies on Flight Information Regions (FIRs) managed by national civil aviation authorities. When geopolitical escalation or military strikes occur—such as military moves and bans over Iranian, Iraqi, or Black Sea airspaces—airlines receive Notices to Airmen (NOTAMs) and advisory circulars prohibiting overflights below specified flight levels or closing entire airspace sectors.

Airspace Corridor Risk and Detour Simulation

Read the explanation

International flights between Europe and Asia typically rely on great-circle routes across the Middle East. When regional Flight Information Regions close under active NOTAM restrictions, aircraft must divert. Selecting the Southern Bypass corridor dynamically routes the flight around closed sectors through Cairo, Riyadh, and Muscat, avoiding the prohibited airspace entirely. The detour appends 675 nautical miles and 84 minutes of flight time. For a Boeing 777-300ER, this incurs an added burn of over 10 metric tonnes of Jet A-1 fuel.

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