Heihe to Seoul HEK → GMP, ICN
Heihe Airport (HEK) → Gimpo International Airport (GMP), Incheon International Airport (ICN)
The cheapest return found recently is $227 with China Southern Airlines, 27 Nov – 7 Dec, found yesterday. The cheapest one-way found recently is $130 with China Southern Airlines, 7 Dec, found yesterday.
Return
The cheapest return fare on each of 6 departure dates is usually $230 to $471.
Cheapest return found recently
$227
27 Nov – 7 Dec · China Southern Airlines
Heihe Airport (HEK) → Incheon International Airport (ICN)
Leaves 12:20 p.m. · Return leaves 8:45 p.m. · 22 h of travel, both ways together
out 1 stop, back 1 stop · via Harbin Taiping International Airport (HRB) · overnight connection · 12 h connection
found yesterday
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$227 27 Nov – 7 Decfound yesterdaySee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $215 to $232.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 6 departure dates from 25 Oct to 8 Feb 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 10-night return fares leaving within 3 days of 27 Nov to compare.
Every date we hold
58 fares on 6 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 25 Oct – 6 Nov | $238 | China Southern Airlines | Heihe Airport (HEK) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 1 Nov – 14 Nov | $238 | China Southern Airlines | Heihe Airport (HEK) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 26 Nov – 7 Dec | $227 | China Southern Airlines | Heihe Airport (HEK) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 27 Nov – 7 Dec | $227 | China Southern Airlines | Heihe Airport (HEK) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 7 Feb 2027 – 11 Feb 2027 | $548 | China Southern Airlines | Heihe Airport (HEK) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 8 Feb 2027 – 11 Feb 2027 | $582 | China Southern Airlines | Heihe Airport (HEK) → Incheon International Airport (ICN) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $227.
Airlines on the cheapest dates: China Southern Airlines.
One-way
The cheapest one-way fare on each of 10 departure dates is usually $131 to $276.
Cheapest one-way found recently
$130
7 Dec · China Southern Airlines
Heihe Airport (HEK) → Incheon International Airport (ICN)
Leaves 12:20 p.m. · 6 h 10 min trip
1 stop · via Harbin Taiping International Airport (HRB)
found yesterday
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$130 7 Decfound yesterdayOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $127 to $182.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 10 departure dates from 22 Oct to 20 Feb 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
No. We hold one-way fares on 1 other departure date within 3 days of 7 Dec, and it is not cheaper.
Every date we hold
45 fares on 10 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 22 Oct | $185 | Chengdu Airlines | Heihe Airport (HEK) → Incheon International Airport (ICN) | 2 stops | found 4 days ago | Open this trip |
| 14 Nov | $132 | China Southern Airlines | Heihe Airport (HEK) → Incheon International Airport (ICN) | 1 stop | found 6 days ago | Open this trip |
| 15 Nov | $131 | China Southern Airlines | Heihe Airport (HEK) → Incheon International Airport (ICN) | 1 stop | found yesterday | Open this trip |
| 27 Nov | $130 | China Southern Airlines | Heihe Airport (HEK) → Incheon International Airport (ICN) | 1 stop | found yesterday | Open this trip |
| 7 Dec | $130 | China Southern Airlines | Heihe Airport (HEK) → Incheon International Airport (ICN) | 1 stop | found yesterday | Open this trip |
| 10 Dec | $175 | Chengdu Airlines | Heihe Airport (HEK) → Incheon International Airport (ICN) | 1 stop | found 5 days ago | Open this trip |
| 15 Dec | $182 | China Southern Airlines | Heihe Airport (HEK) → Incheon International Airport (ICN) | 1 stop | found 5 days ago | Open this trip |
| 7 Feb 2027 | $306 | China Southern Airlines | Heihe Airport (HEK) → Incheon International Airport (ICN) | 1 stop | found 2 days ago | Open this trip |
| 9 Feb 2027 | $499 | China Eastern | Heihe Airport (HEK) → Incheon International Airport (ICN) | 1 stop | found 2 days ago | Open this trip |
| 20 Feb 2027 | $330 | China Eastern | Heihe Airport (HEK) → Incheon International Airport (ICN) | 1 stop | found 2 days ago | Open this trip |
Which month looks cheapest?
December 2026 is the cheapest month — from $130.
Airlines on the cheapest dates: China Southern Airlines, Chengdu Airlines, China Eastern.
Premium cabin fares from Heihe to Seoul
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 27 Nov – 7 Dec in another cabin: Premium economy · Business · First
Today's prices for 7 Dec in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Heihe to Seoul?
Return
Fares 14 to 29 days before departure were typically 38% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 18 Oct (25 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.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $361 | $281 | +62% | 15 |
| 7–13 days | $302 | $221 | +35% | 15 |
| 14–29 days | $223 | $221 | Cheapest seen | 24 |
| 30–59 days | $225 | $215 | +1% | 25 |
| 60–89 days | $433 | $298 | +94% | 21 |
| 90–179 days | $391 | $349 | +75% | 25 |
| 180+ days | $350 | $350 | +57% | 12 |
One-way
The cheapest fares were 14 to 29 days before departure.
From the cheapest one-way each day between 24 Sept and 18 Oct (25 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.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 14–29 days | $129 | $127 | Cheapest seen | 16 |
| 30–59 days | $130 | $128 | +1% | 24 |
| 60–89 days | $130 | $129 | +1% | 20 |
| 90–179 days | $281 | $281 | +118% | 9 |
| 180+ days | $210 | $210 | +63% | 18 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Blagoveschensk → Seoul
3 km from Heihe
$587
$360 more than flying from Heihe
1 Dec – 21 Dec · BQS → ICN · out 2 stops, back 2 stops
found yesterday
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 27 Nov – 7 Dec. A live search on this page shows what those dates cost now, for one adult in economy.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work