AirHint found the following cheapest return flights from Washington (DCA) to Hanoi (HAN) in June 2026 (see full year).

Return flights

03 Jun - 24 Jun	Korean Air
03 Jun - 09 Jun	Korean Air
07 Jun - 16 Jun	Korean Air
02 Jun - 23 Jun	Korean Air
02 Jun - 14 Jun	Korean Air
09 Jun - 01 Jul	Korean Air
10 Jun - 04 Jul	Korean Air
02 Jun - 10 Jun	Alaska Airlines
03 Jun - 11 Jun	Alaska Airlines
03 Jun - 16 Jun	Alaska Airlines
05 Jun - 29 Jun	Alaska Airlines
09 Jun - 12 Jun	Alaska Airlines
09 Jun - 02 Jul	Alaska Airlines
09 Jun - 07 Jul	Alaska Airlines
10 Jun - 08 Jul	Cathay Pacific
09 Jun - 05 Jul	Cathay Pacific
16 Jun - 04 Jul	Cathay Pacific

Also check the deals for one-way flights from Washington to Hanoi in June.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Washington to Hanoi in June from $1175

Return flights