Via Seoul

Flowing 81 /100

Singapore → Tokyo

No warning areas on this flight path

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

Clear of warning areas · Moderate reroute options · via Seoul · ~7h 50m

Route assessed 12d ago

Why book

Second one-stop option via Seoul. Clean airspace on both segments. Korean Air and Asiana both serve this connection.

Worth knowing

ICN hub is operationally strong. The SIN–ICN leg is clean. Korean Air and Asiana provide two different carriers at the same hub, which is useful for rescheduling.

Flowing 81

Singapore → 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 61

Other paths · Stop quality

Problems now 100

Closed areas · Flight options

Same clean airspace as the HKG option, but ICN is a slightly lower-resilience hub for South Asian connections than HKG. Ranks below HKG on hub quality.

SIN→ICN routes north through South China Sea and Philippine Sea — no active advisory exposure.
ICN→NRT is a very short hop (~2 hours). Schedule reliability on this leg is high.
Two carriers (KE, OZ) at ICN provide carrier flexibility when rebooking if disruption occurs.
Incheon (ICN) is a large, efficient hub with good connectivity across Northeast Asia.
Total journey is approximately 7.5–8 hours, slightly longer than the HKG option due to Seoul's more northerly position.

Other options for this trip

Direct 90

Via Hong Kong 87

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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