5 routes compared
Via Seoul is the best route right now.
Based on official airspace warnings · checked 3h ago · How this works
Full breakdown →Best-rated option for FRA→NRT. Avoids Gulf entirely; ICN is a world-class hub with excellent onward frequency to Tokyo. The ICN→NRT second leg is only 2 hours — dramatically shorter than IST→NRT.
Very few backup paths if this route is disrupted
Route assessed 21h ago
Full breakdown →Better structural resilience than the direct flight — the hub break at Istanbul creates a decision point. IST–NRT still uses the Central Asian corridor but you're not committed to it on a single ticket.
Very few backup paths if this route is disrupted
Route assessed 21h ago
Full breakdown →Air China's China-side option for FRA→NRT. PEK→NRT is a short, clean segment (~3 hours) over Yellow Sea airspace with no active advisories. The FRA→PEK first leg uses the Central Asian corridor — same structural dependency as Via Istanbul and Via Seoul.
Very few backup paths if this route is disrupted
Route assessed 21h ago
Full breakdown →We score each route based on whether it flies near or through warning areas, how much longer it is, and how many reroute options exist — based on official flight warnings.
Some routes aren't covered yet — if yours is missing, that's a gap, not an assessment.
Scores compare route options; they are not safety ratings. Always check with your airline before booking.
Full explanation →For reference only · Check with your airline before booking