Airport route guide

Upgrade & Award Space from Karatsu (IKI)

Iki Airport (IKI) is a small station in Karatsu, JP with nonstop service to 1 destination, served by OC. Because the schedule is limited, an upgrade or award opening on a Nagasaki flight rarely lasts. 2LNR checks every IKI nonstop for confirmed availability, so a rare opening doesn't go unnoticed.

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

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1
Nonstop destinations
30+
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Confirmed upgrade & award space on every IKI route

2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Pick any Karatsu destination below to open a calendar of departures with real availability, or watch a route and get alerted when space opens.

See real availability

Confirmed upgrade and award seats on each IKI route, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch a Karatsu route and 2LNR notifies you when space appears.

Plan on the map

Explore every IKI nonstop on the interactive route map, with connections and route statistics.

All nonstop destinations from Karatsu (IKI)

1 nonstop destinations with active service from Iki Airport. Each route links to its confirmed upgrade and award availability.

Explore IKI routes on the interactive map →

Frequently asked questions about Karatsu (IKI)

How many nonstop destinations does Iki Airport (IKI) serve?
Iki Airport has active nonstop service to 1 destination. The busiest markets from IKI are Nagasaki. The full list, with live upgrade and award availability for each route, is on this page.
Which airlines fly upgrade-trackable routes from IKI?
OC operate the most tracked routes from Karatsu. 2LNR covers upgrade and award space on more than 30 airlines, so other carriers serving IKI appear on their routes as well.
How do I check upgrade or award availability from IKI?
Pick any destination on this page, such as Nagasaki, to open a calendar of IKI departures with confirmed upgrade and award space, date by date. You can also set an alert so 2LNR notifies you when space opens on a route you care about.
Does 2LNR track flights from IKI?
Yes. Every active nonstop route from Iki Airport is tracked, 1 destination in total, and what's shown is confirmed availability rather than a forecast. It's free to start.

Never miss IKI upgrade or award space

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