3rd Update as of 2205GMT 07JAN25 with airline comment.
Published at 0600GMT 07JAN25 

Icelandair in Northern winter 2025/26 season intends to expand Airbus A321neo LR operations, as schedule listing in the OAG has been extended to early-February 2026, as of 05JAN25.

On North America routes, planned A321neo LR service addition in North America includes the following.

Reykjavik Keflavik – Miami eff 06JAN26 3 weekly*
Reykjavik Keflavik – Newark eff 06JAN26 1 daily
Reykjavik Keflavik – New York JFK eff 05JAN26 1 daily
Reykjavik Keflavik – Orlando 19DEC25, 03JAN26
Reykjavik Keflavik – Portland OR 26OCT25 – 04JAN25 4 weekly

The A321neo is scheduled to serve following North American routes during summer 2025 season:
Reykjavik Keflavik – Seattle First flight 30APR25, instead of 07MAY25
Reykjavik Keflavik – Toronto Service revised to 14SEP25 – 24OCT25, instead of 01MAY25

* Miami will be the airline’s new destination in the US, with overall 3 weekly flights with following schedule.
FI691 KEF1715 – 2055MIA 32Q 246
FI690 MIA1715 – 0555+1KEF 32Q 357

Updated info at 2205GMT with airline statement:
Icelandair has advised the airline has not decided or announced flights to Miami, despite an erroneous schedule filing to OAG. The erroneous schedule filing for Miami from 2026 has been removed.