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to connect (with a different flight, train, etc.); to make a connection; to change (planes, trains, etc.)
羽田でソウル便に乗り継いだ。
I connected to the Seoul flight at Haneda.
大阪から乗り継いでいる途中で遅延が出た。
A delay occurred while making a connection from Osaka.
海外旅行では複数の空港で乗り継ぐのが普通だ。
It is common to make connections at multiple airports on international trips.