Passes near restricted airspace — not directly through it
Watchful 64

LHR → NRT

Clear of advisory zones — fewer backup paths than top alternatives
Watchful 64

Via Seoul

London → Tokyo

Route last assessed 2d ago

Airspace

Near zone

Alt routes

Weak

Via

ICN

~13h 10m

Best for

Strong alternative to Via Istanbul. ICN hub scores 0/3 (world-class) and the ICN→NRT second leg is only 2.5 hours over clean Pacific airspace — much shorter than IST→NRT. First leg uses the Central Asian corridor.

Weakness

Limited alternative paths if the main corridor is disrupted

Watch

LHR→ICN uses the Central Asian corridor — check Eurocontrol ATFM status before departure. ICN→NRT transits Korean and Japanese airspace: clean, uncongested, no active advisories.

Evaluated using advisory airspace exposure, corridor sensitivity, detour impact, and hub routing logic — based on EASA and national authority advisories.

Advisory data only · Verify with your airline and government before booking.

Methodology →