Route guide

Iwanuma to Sapporo (SDJ-CTS): Nonstop Upgrade & Award Space

Japan Airlines, AIRDO, Ibex Airlines, All Nippon Airways, and EuroAtlantic Airways fly nonstop between Iwanuma (SDJ) and Sapporo (CTS), roughly 105 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 SDJ to CTS 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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105
Nonstop flights a week
324 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every SDJ to CTS 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 Iwanuma to Sapporo 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 SDJ to CTS 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 SDJ to CTS on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Iwanuma to Sapporo nonstop

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

  • Japan Airlines
  • AIRDO
  • Ibex Airlines
  • All Nippon Airways
  • EuroAtlantic Airways
See SDJ to CTS on the interactive map →

Frequently asked questions about SDJ to CTS

How far is Sapporo from Iwanuma?
SDJ to CTS covers about 324 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from SDJ to CTS?
Japan Airlines, AIRDO, Ibex Airlines, All Nippon Airways, and EuroAtlantic Airways fly the route nonstop. 2LNR tracks confirmed upgrade and award space on all five of them.
How many flights a week are there from SDJ to CTS?
About 105 nonstop flights a week run between Iwanuma and Sapporo in the current schedule, operated by Japan Airlines, AIRDO, Ibex Airlines, All Nippon Airways, and EuroAtlantic Airways. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on SDJ to CTS?
Open the SDJ to CTS calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Iwanuma to Sapporo route, and 2LNR will notify you when space opens. It's free to start.

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