Cheap flights from Ulsan to Seoul from $75 USN → GMP
Ulsan Airport (USN) → Gimpo International Airport (GMP)
The cheapest one-way found recently is $75 with Jin Air, 28 Dec, found 3 days ago.
- Cheapest one-way found recently
- $75, Jin Air, found 3 days ago
- Cheapest month to fly
- November 2026, one-way fares from $37 found in the last 7 days
- Airlines with nonstop flights
- Jin Air, Korean Air
- Shortest nonstop flight found
- 1 h
One-way
The cheapest one-way fare on each of 7 departure dates is usually $47 to $84.
Cheapest one-way found recently
$75
28 Dec · Jin Air
Ulsan Airport (USN) → Gimpo International Airport (GMP)
Leaves 2:35 p.m. · 1 h trip
nonstop
found 3 days ago
Cheapest nonstop one-way
$75
28 Dec · Jin Air
Ulsan Airport (USN) → Gimpo International Airport (GMP)
Leaves 2:35 p.m. · 1 h trip
nonstop
found 3 days ago
Found recently, and the cheapest we hold
$75 28 Decfound 3 days agoOpen this trip
$37 17 Novfound 6 days agoOpen this trip
What have prices looked like?
Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $31 to $77.
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 7 departure dates from 14 Nov to 1 Jan 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 2 other departure dates within 3 days of 28 Dec, and none is cheaper.
Every date we hold
8 fares on 7 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 14 Nov | $52 | Korean Air | Ulsan Airport (USN) → Gimpo International Airport (GMP) | nonstop | found 7 days ago | Open this trip |
| 17 Nov | $37 | Korean Air | Ulsan Airport (USN) → Gimpo International Airport (GMP) | nonstop | found 6 days ago | Open this trip |
| 18 Nov | $42 | Jin Air | Ulsan Airport (USN) → Gimpo International Airport (GMP) | nonstop | found 5 days ago | Open this trip |
| 26 Dec | $79 | Jin Air | Ulsan Airport (USN) → Gimpo International Airport (GMP) | nonstop | found 4 days ago | Open this trip |
| 27 Dec | $89 | Jin Air | Ulsan Airport (USN) → Gimpo International Airport (GMP) | nonstop | found 5 days ago | Open this trip |
| 28 Dec | $75 | Jin Air | Ulsan Airport (USN) → Gimpo International Airport (GMP) | nonstop | found 3 days ago | Open this trip |
| 1 Jan 2027 | $91 | Jin Air | Ulsan Airport (USN) → Gimpo International Airport (GMP) | nonstop | found 6 days ago | Open this trip |
Which month looks cheapest?
November 2026 is the cheapest month — from $37.
Airlines on the cheapest dates: Jin Air, Korean Air.
Premium cabin fares from Ulsan 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 28 Dec in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Ulsan to Seoul?
One-way
The cheapest fares were 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.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $41 | $31 | Cheapest seen | 42 |
| 7–13 days | $46 | $37 | +12% | 41 |
| 14–29 days | $46 | $44 | +12% | 26 |
| 30–59 days | $75 | $46 | +83% | 25 |
| 60–89 days | $66 | $48 | +61% | 32 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Busan → Seoul
45 km from Ulsan
$58
15 Nov – 16 Nov · PUS → GMP · out nonstop, back nonstop
found 2 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Busan → Seoul
45 km from Ulsan
$23
$52 less than flying from Ulsan
1 Dec · PUS → GMP · nonstop
found 2 days ago
Jinju → Seoul
116 km from Ulsan
$58
$17 less than flying from Ulsan
21 Nov · HIN → GMP · nonstop
found 2 days ago
Daegu → Seoul
74 km from Ulsan
$133
$58 more than flying from Ulsan
21 Nov · TAE → GMP · 1 stop
found 2 days ago
Pohang → Seoul
54 km from Ulsan
$141
$66 more than flying from Ulsan
21 Nov · KPO → GMP · 1 stop
found 2 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest one-way found recently is for 28 Dec. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a one-way flight from Ulsan to Seoul?
The cheapest one-way found recently is $75 with Jin Air, 28 Dec, found 3 days ago. The cheapest one-way we hold, of any age, is $37 with Korean Air, 17 Nov, found 6 days ago. The cheapest one-way fare on each of 7 departure dates is usually $47 to $84.
What is the cheapest month to fly from Ulsan to Seoul?
November 2026 is the cheapest month for a one-way, from $37, 17 Nov, found 6 days ago.
How far ahead should I book a flight from Ulsan to Seoul?
In 49 days of prices between 24 Sept and 11 Nov, one-way fares were cheapest 0 to 6 days before departure.
Is there a direct flight from Ulsan to Seoul?
Yes, the cheapest nonstop one-way found recently is $75 with Jin Air, 28 Dec, found 3 days ago.
How long is the flight from Ulsan to Seoul?
The cheapest nonstop one-way found recently, with Jin Air on 28 Dec, takes 1 h from Ulsan Airport (USN) to Gimpo International Airport (GMP).
Which airlines have the cheapest flights from Ulsan to Seoul?
Between 14 Nov and 1 Jan 2027, Jin Air has the cheapest one-way on 5 of the 7 departure dates we hold, and Korean Air on 2.
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