Cheap flights from Heihe to Seoul from $226 HEK → GMP, ICN

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 $215 to $288.

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 23 Nov to compare.

Every date we hold

57 fares on 7 departure dates

Which month looks cheapest?

November 2026 is the cheapest month — from $250.

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 $127 to $222.

At $226, 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 1 Mar 2027 to compare.

Every date we hold

11 fares on 4 departure dates

Which month looks cheapest?

November 2026 is the cheapest month — from $173.

Return

Fares 30 to 59 days before departure were typically 19% lower than 0 to 6 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

Fares 30 to 59 days before departure were typically 24% lower than 0 to 6 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 Heihe to Seoul?

The cheapest return found recently is $252 with China Southern Airlines, 23 Nov to 30 Nov, found 2 days ago. The cheapest return we hold, of any age, is $250 with China Southern Airlines, 16 Nov to 23 Nov, found 3 days ago. The cheapest return fare on each of 7 departure dates is usually $257 to $481.

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

The cheapest one-way found recently is $226 with China Southern Airlines, 1 Mar 2027, found 2 days ago. The cheapest one-way we hold, of any age, is $173 with China Southern Airlines, 14 Nov, found 4 days ago. The cheapest one-way fare on each of 4 departure dates is usually $212 to $226.

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

November 2026 is the cheapest month for a return, from $250, 16 Nov to 23 Nov, found 3 days ago. It is the cheapest month for a one-way too, from $173, 14 Nov, found 4 days ago.

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

In 49 days of prices between 24 Sept and 11 Nov, return fares 30 to 59 days before departure were typically 19% lower than 0 to 6 days before departure. One-way fares 30 to 59 days before departure were typically 24% lower than 0 to 6 days before departure.

How long is the flight from Heihe to Seoul?

The cheapest one-way found recently, with China Southern Airlines on 1 Mar 2027, takes 23 h 20 min with 1 stop, including a 20 h connection.

Which airlines have the cheapest flights from Heihe to Seoul?

Between 16 Nov and 1 May 2027, China Southern Airlines has the cheapest return on all 7 departure dates we hold. Between 14 Nov and 1 Mar 2027, China Southern Airlines has the cheapest one-way on all 4 departure dates we hold.