AirHint found the following cheapest return flights from Mumbai (BOM) to Hanoi (HAN) in September 2025 (see full year).

Return flights

21 Sep - 25 Sep	Vietnam Airlines	direct
01 Sep - 06 Sep	Air India
02 Sep - 06 Sep	IndiGo
14 Sep - 20 Sep	Air India
14 Sep - 21 Sep	Air India
16 Sep - 30 Sep	Air India
15 Sep - 18 Sep	Air India
23 Sep - 01 Oct	VietJet Air
20 Sep - 01 Oct	Akasa Air
16 Sep - 19 Sep	Air India
03 Sep - 04 Sep	IndiGo
23 Sep - 02 Oct	VietJet Air
01 Sep - 04 Sep	IndiGo
28 Sep - 15 Oct	IndiGo
21 Sep - 01 Oct	IndiGo
27 Sep - 01 Oct	Akasa Air
18 Sep - 02 Oct	IndiGo
23 Sep - 05 Oct	Air India
22 Sep - 01 Oct	Akasa Air
27 Sep - 02 Oct	Akasa Air

Also check the deals for one-way flights from Mumbai to Hanoi in September.

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 Mumbai to Hanoi in September from $248

Return flights