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Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Maine to Hanoi as you normally would.
Related info for your journey
Useful info, stats and facts about Maine to Hanoi flights.
Most people fly into Hanoi Noibai (HAN) if they book a flight to Hanoi from Maine. Noibai is conveniently located just 14.2 mi from Hanoi’s city center.
Portland Airport is PWM and Hanoi Noibai Airport is HAN. These codes are created by the International Air Transport Association (IATA) and airlines use them to identify the departing and arrival airports in the flight routes they service. Bangor Airport (BGR), Augusta Airport (AUG), Bar Harbor Airport (BHB), Rockland Knox County Regional Airport (RKD), Presque Isle Airport (PQI) are some additional IATA codes for airports related to your trip.