Cheap flights from Seoul to Hanoi from $98 GMP, ICN → HAN

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $170 to $260.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other 7-night return fares leaving within 3 days of 26 Dec to compare.

Every date we hold

147 fares on 11 departure dates

Which month looks cheapest?

December 2026 is the cheapest month — from $215.

Found recently, and the cheapest we hold

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $73 to $96.

At $98, the cheapest one-way found recently is above that range.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other one-way fares leaving within 3 days of 8 May 2027 to compare.

Every date we hold

5 fares on 4 departure dates

Which month looks cheapest?

October 2027 is the cheapest month — from $93.

Return

The cheapest fares were 180 or more days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

One-way

The cheapest fares were 14 to 29 days before departure.

From the cheapest one-way each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

How much is a return flight from Seoul to Hanoi?

The cheapest return found recently is $259 with Jeju Air, 26 Dec to 2 Jan 2027, found 2 days ago. The cheapest return we hold, of any age, is $215 with Jeju Air, 16 Dec to 21 Dec, found 3 days ago. The cheapest return fare on each of 11 departure dates is usually $257 to $295.

How much is a one-way flight from Seoul to Hanoi?

The cheapest one-way found recently is $98 with Vietjet, 8 May 2027, found 2 days ago. The cheapest one-way we hold, of any age, is $93 with Vietjet, 19 Oct 2027, found 3 days ago. The cheapest one-way fare on each of 4 departure dates is usually $96 to $99.

What is the cheapest month to fly from Seoul to Hanoi?

December 2026 is the cheapest month for a return, from $215, 16 Dec to 21 Dec, found 3 days ago. October 2027 is the cheapest month for a one-way, from $93, 19 Oct 2027, found 3 days ago.

How far ahead should I book a flight from Seoul to Hanoi?

In 49 days of prices between 24 Sept and 11 Nov, return fares were cheapest 180 or more days before departure. One-way fares were cheapest 14 to 29 days before departure.

Is there a direct flight from Seoul to Hanoi?

Yes, the cheapest nonstop return found recently is $259 with Jeju Air, 26 Dec to 2 Jan 2027, found 2 days ago. The cheapest nonstop one-way found recently is $98 with Vietjet, 8 May 2027, found 2 days ago.

Every nonstop date from Seoul to Hanoi

How long is the flight from Seoul to Hanoi?

The cheapest nonstop one-way found recently, with Vietjet on 8 May 2027, takes 4 h 30 min from Incheon International Airport (ICN) to Noi Bai International Airport (HAN).

Which airlines have the cheapest flights from Seoul to Hanoi?

Between 29 Nov and 1 Apr 2027, Jeju Air has the cheapest return on 5 of the 11 departure dates we hold, Vietjet on 3 and China Eastern on 2. Between 21 Feb 2027 and 19 Oct 2027, Vietjet has the cheapest one-way on all 4 departure dates we hold.