Route guide

Busan to Seoul (PUS-ICN): Nonstop Upgrade & Award Space

Korean Air and Delta Air Lines fly nonstop between Busan (PUS) and Seoul (ICN), roughly 39 times a week. Because so many carriers compete on this route, premium seats turn over daily, and upgrade or award space can open and close within hours. 2LNR tracks confirmed availability on every PUS to ICN departure, so you know which flights have space before you book.

Data current as of July 21, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

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39
Nonstop flights a week
210 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every PUS to ICN departure

2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Open the calendar for Busan to Seoul to see which departures have real space, or watch the route and get alerted when space opens.

See real availability

Confirmed upgrade and award seats on each PUS to ICN departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See PUS to ICN on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Busan to Seoul nonstop

Carriers operating PUS to ICN nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

  • Korean Air
  • Delta Air Lines
See PUS to ICN on the interactive map →

Frequently asked questions about PUS to ICN

How far is Seoul from Busan?
PUS to ICN covers about 210 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from PUS to ICN?
Korean Air and Delta Air Lines fly the route nonstop. 2LNR tracks confirmed upgrade and award space on both of them.
How many flights a week are there from PUS to ICN?
About 39 nonstop flights a week run between Busan and Seoul in the current schedule, operated by Korean Air and Delta Air Lines. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on PUS to ICN?
Open the PUS to ICN calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Busan to Seoul route, and 2LNR will notify you when space opens. It's free to start.

Never miss PUS to ICN upgrade or award space

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