Chennai to Hanoi at a glance
The lowest fare our scanner has seen from Chennai to Hanoi in the last two weeks is ₹15,418 (one-way) for Wed 11 Nov, about the usual price.
Of the months we have prices for, November is the cheapest and December the dearest.
The cheapest fares we see stop on the way, usually in Kuala Lumpur, Bangkok and Kolkata, and take from 7h 40m.
Hanoi has its best weather from March to April and October to November.
Common stops: Kuala Lumpur, Bangkok, KolkataCheapest airlines lately: AirAsia, Thai AirAsia, IndiGo, THAI
Month by month: fares, weather and what's on
The cheapest fare our scanner has seen in each month over the last two weeks (one-way), with Hanoi's weather and the dates that move prices. The live calendar at the top prices any month and trip length on demand.
| Month | Cheapest fare seen | Weather | Season | What's on |
|---|---|---|---|---|
| October 2026Best weather | Check live above | 28° / 22°wet, 198 mm | Peak | Dussehra |
| November 2026Best weather | ₹15,418 one-way · Wed 11 Nov | 26° / 19°some rain, 57 mm | Peak | Diwali |
| December 2026 | ₹18,702 one-way · Thu 3 Dec | 22° / 15°mostly dry, 35 mm | Shoulder | Christmas and New Year |
| January 2027 | Check live above | 21° / 14°some rain, 68 mm | Shoulder | Christmas and New YearRepublic Day weekend |
| February 2027 | Check live above | 22° / 15°some rain, 55 mm | Shoulder | Tet |
| March 2027Best weather | Check live above | 26° / 19°some rain, 73 mm | Peak | HoliGood Friday weekend |
| April 2027Best weather | Check live above | 29° / 22°rainy spells, 101 mm | Peak | Indian summer holidays |
| May 2027 | Check live above | 31° / 24°wet, 238 mm | Shoulder | Indian summer holidays |
| June 2027 | Check live above | 33° / 26°very wet, 301 mm | Off-season | Indian summer holidays |
| July 2027 | Check live above | 33° / 26°very wet, 339 mm | Off-season | Hot, humid rainy season with heavy downpours; June and July often top 35°C. |
| August 2027 | Check live above | 32° / 26°very wet, 447 mm | Off-season | Hot, humid rainy season with heavy downpours; June and July often top 35°C. |
| September 2027 | Check live above | 31° / 25°very wet, 350 mm | Shoulder | Hot, humid rainy season with heavy downpours; June and July often top 35°C. |
Dates to plan around
Festivals and holidays in Hanoi, and the rushes that push up fares out of Chennai.
- 20 OctDussehraDussehra falls on Tuesday 20 Oct: many take the Monday off for a four-day weekend, so short trips abroad cost more that week.
- 6–10 NovDiwaliDiwali (Lakshmi Puja on Sunday 8 Nov): the busiest travel week of the autumn. Fares out of India rise, and short trips to Dubai, Bangkok and Singapore book up.
- 19 Dec – 3 JanChristmas and New YearThe priciest fortnight of the year to fly out of India: school holidays, Christmas and New Year all at once. Book early or go just before or after.
- 23–26 JanRepublic Day weekendRepublic Day falls on Tuesday 26 Jan: take the Monday off and it's a four-day weekend, so short trips abroad book up.
- 4–10 Feb · expectedTetVietnam's Lunar New Year (day one is 6 Feb; the break is proposed for 4-10 Feb): the biggest holiday of the year. Many shops and restaurants close for up to a week and transport sells out.
- 22–23 MarHoliHoli (22-23 Mar) and Good Friday (26 Mar) fall in the same week, a favourite week for short trips abroad, so fares rise.
- 26–28 MarGood Friday weekendGood Friday (26 Mar) makes a long weekend in India, just after Holi.
- 15 Apr – 15 Jun · expectedIndian summer holidaysSchool holidays (roughly mid-April to mid-June, varying by state): outbound family travel peaks and fares climb, especially to the Gulf, Southeast Asia and Europe.
- 27–31 OctDiwaliDiwali (Lakshmi Puja on Friday 29 Oct): the busiest travel week of the autumn. Fares out of India rise, and short trips abroad book up.
Good to know
What is the cheapest month to fly from Chennai to Hanoi?
Of the months our scanner has priced, November 2026 is the cheapest: ₹15,418 (one-way) for Wed 11 Nov. Fares change daily; the live calendar at the top of this page prices every month on demand.
How long is the flight from Chennai to Hanoi?
Among the cheapest fares we see, the quickest takes about 7h 40m with a stop.
Which airlines fly from Chennai to Hanoi?
Recently the cheapest fares were on AirAsia, Thai AirAsia, IndiGo, THAI and SriLankan.
When is the best time to visit Hanoi?
The best weather in Hanoi is from March to April and October to November. Spring: warm and pleasant, with light drizzle in March. Peak season, with the most visitors and the highest hotel prices, is March to April and October to November. The quietest months are June to August.
How far ahead should I book Chennai to Hanoi flights?
At least five weeks ahead. Recently, on Southeast Asia routes, fares under 2 weeks before departure ran 9% above what the same flights cost five to seventeen weeks out.
When do fares out of Chennai go up?
Dussehra (20 Oct): Dussehra falls on Tuesday 20 Oct: many take the Monday off for a four-day weekend, so short trips abroad cost more that week. Diwali (6–10 Nov): Diwali (Lakshmi Puja on Sunday 8 Nov): the busiest travel week of the autumn. Fares out of India rise, and short trips to Dubai, Bangkok and Singapore book up. Christmas and New Year (19 Dec – 3 Jan): The priciest fortnight of the year to fly out of India: school holidays, Christmas and New Year all at once. Book early or go just before or after.