Route guide

Nagasaki to Busan (NGS-TSJ): Nonstop Upgrade & Award Space

OC flies nonstop between Nagasaki (NGS) and Busan (TSJ), roughly 21 times a week. With OC operating this route so often, premium seats still turn over daily, and upgrade or award space can open and close within hours. 2LNR tracks confirmed availability on every NGS to TSJ 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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21
Nonstop flights a week
100 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every NGS to TSJ 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 Nagasaki to Busan 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 NGS to TSJ 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 NGS to TSJ on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Nagasaki to Busan nonstop

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

  • OC
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Frequently asked questions about NGS to TSJ

How far is Busan from Nagasaki?
NGS to TSJ covers about 100 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from NGS to TSJ?
OC is currently the only airline flying NGS to TSJ nonstop. 2LNR tracks confirmed upgrade and award space on every OC departure.
How many flights a week are there from NGS to TSJ?
About 21 nonstop flights a week run between Nagasaki and Busan in the current schedule, operated by OC. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on NGS to TSJ?
Open the NGS to TSJ calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Nagasaki to Busan route, and 2LNR will notify you when space opens. It's free to start.

Never miss NGS to TSJ upgrade or award space

Track confirmed availability, set alerts, and book with confidence. Free to start, no credit card required.

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