Flights by month
Seoul to Hanoi flights, month by month (2026)
A typical return fare from Seoul to Hanoi for each of 7 months, from departures we researched across a year. September is the cheapest, at around Rp3.670.670. Researched figures, not quotes: the partner shows what it costs today.
Typical return fare by month
Cheapest in Sep 2026, about Rp3.670.670
Feb 2027 costs about Rp2.592.165 more.
Researched fares: Rp3.240.333 to Rp10.854.900 per person over 87 checks, last on 2026-09-07. · Cheapest direct researched: VietJet Air at Rp3.240.333.
From our own live checks: for each departure we sampled in the month, the cheapest return fare per person the newest check found, averaged. The same figures as the fare index, last checked 2026-09-06. Not a quote. What you pay depends on when you book. Departures from Sep 2026 to Mar 2027. How we work this out
Flying to Hanoi
- Fastest journey
- 4h 30m · Non-stop · VietJet Air
- Cheapest itinerary
- 12h 20m · 1 stop · HK Express
- Usually flown by
- VietJet Air, China Eastern, HK Express
- Carbon, one way
- 230 kg CO₂
From the 21 fares we researched for a 2027-08-28 departure, checked 2026-09-07. Outbound journey times. Not a quote. How we work this out
Common questions
When is the cheapest month to fly from Seoul to Hanoi?
From what we captured across a year of departures, September is the cheapest month to fly Seoul to Hanoi, at around Rp3.670.670 return. That is a researched figure from a dated snapshot, not a live quote, so check the price with a partner before you book.
When is the most expensive month to fly from Seoul to Hanoi?
February is the dearest month we captured for Seoul to Hanoi, at around Rp6.262.835 return, about Rp2.592.165 more than the cheapest month.
How long is the flight from Seoul to Hanoi?
About 4h 30m non-stop, from the itineraries we captured for Seoul to Hanoi.
Which airlines fly from Seoul to Hanoi?
The fares we captured for Seoul to Hanoi were on Vietjet, Asiana Airlines, Vietnam Airlines, Shandong, among others.