Islip to Niigata Flights

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Details:
Fly out on a Thursday, return on a Thursday, save up to $3087.

The best day to depart a roundtrip ticket from Islip to Niigata is Thursday, saving $1450. The best day to return is Thursday, saving up to $1637.

From:
Islip (ISP)
    
To:
Niigata (KIJ)    
    
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