Route guide

Nagasaki to Karatsu (NGS-IKI): Nonstop Upgrade & Award Space

OC flies nonstop between Nagasaki (NGS) and Karatsu (IKI), roughly 14 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 IKI 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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14
Nonstop flights a week
58 mi
Nonstop distance
Free
To get started

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

Airlines flying Nagasaki to Karatsu nonstop

Carriers operating NGS to IKI 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 IKI

How far is Karatsu from Nagasaki?
NGS to IKI covers about 58 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 IKI?
OC is currently the only airline flying NGS to IKI nonstop. 2LNR tracks confirmed upgrade and award space on every OC departure.
How many flights a week are there from NGS to IKI?
About 14 nonstop flights a week run between Nagasaki and Karatsu 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 IKI?
Open the NGS to IKI calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Nagasaki to Karatsu route, and 2LNR will notify you when space opens. It's free to start.

Never miss NGS to IKI upgrade or award space

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

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