Via Hong Kong

Watchful 69 /100

London → Tokyo

Near a warning area, but does not cross it

Getting old 8 to 30 days old. May still be right — double-check before you book.

Near a warning area · Moderate reroute options · via Hong Kong · ~15h 40m

Route assessed 12d ago

Why book

Best structural option for LHR→NRT. Cathay routes LHR–HKG via South Asia, bypassing the Central Asian corridor entirely. HKG–NRT is a clean northeast Asian segment.

The catch

This route is significantly longer than a more direct path

Worth knowing

The HKG–NRT segment transits Chinese airspace. Monitor any PRC airspace developments. Note: Cathay Pacific is a Hong Kong carrier — any PRC policy changes to HKG operations would affect this option.

Watchful 69

London → Tokyo

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Getting old

8 to 30 days old. May still be right — double-check before you book.

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Route strength 66

Other paths · Stop quality

Problems now 71

Closed areas · Flight options

Ranks above Istanbul because corridor dependency is 1 vs 2 — Cathay's south Asian routing for LHR–HKG has genuine alternatives to the Central Asian bottleneck. The backtrack complexity (HKG is south of NRT) is the trade-off.

Cathay Pacific routes LHR–HKG via South Asia (southern corridor over India and South Asia), not through the Central Asian bottleneck — this is the key structural advantage over the Istanbul option.
Corridor dependency rated 1/3: multiple routing options exist for LHR–HKG, versus the Istanbul option's sole dependency on Central Asian airspace.
HKG hub is world-class in resilience. NRT is a stable destination. The HKG–NRT segment over the Pacific approaches is uncongested.
Trade-off: HKG sits south-southwest of NRT, meaning this routing approaches Tokyo from below rather than the northwest. Total distance is ~700km longer than Istanbul option.
Cathay Pacific's 2 daily LHR–HKG departures give adequate but not high-frequency rebooking options if disruption occurs.

Other options for this trip

Scores are based on official airspace warnings, added flight time, and how many reroute options exist. This is not a safety rating. Always check with your airline before you book.

For reference only · Verify before booking.

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