Historical clue formulations

• Carrier to Sweden — 2025-08-05
• One of the founding airlines of Star Alliance — 2025-01-09
• Airline to Oslo — 2024-02-11
• Carrier to Oslo — 2018-10-17
• European carrier — 2018-06-01
• Carrier to Stockholm — 2018-05-30
• Carrier in the Star Alliance — 2017-08-18
• Nordic airline — 2016-06-21
• Carrier with a Copenhagen hub — 2016-04-27
• Airline to Stockholm — 2016-04-12
• Carrier to Sweden — 2015-10-20
• Parent of Air Greenland — 2015-06-13
• Carrier with the EuroBonus frequent flier program — 2015-03-26
• Copenhagen carrier — 2014-12-03
• KLM competitor — 2014-07-24
• Multinational carrier — 2014-07-17
• Carrier in the Star Alliance — 2014-05-27
• Finnair rival — 2014-04-24
• Stockholm-bound carrier — 2014-04-20
• Carrier to Oslo — 2013-11-12
• Carrier to Oslo — 2013-07-30
• Finnair alternative — 2013-07-06
• Flier to Bergen — 2013-06-09
• Nordic flier — 2013-04-06
• KLM competitor — 2012-02-28
• An original member of the Star Alliance — 2011-11-23
• Carrier to Oslo — 2011-08-08
• KLM alternative — 2011-08-04
• Carrier to Copenhagen — 2011-05-03
• Carrier to Oslo — 2011-01-31
• Carrier to Copenhagen — 2011-01-10
• Carrier with a frequent flier program called EuroBonus — 2010-11-21
• Carrier with a hub in Copenhagen — 2010-09-22
• Carrier that had a pioneering transpolar route — 2010-07-29
• Carrier in the Star Alliance — 2010-07-04
• Airline in the Star Alliance — 2010-02-24
• Carrier to Copenhagen — 2009-12-23
• Flier to Stockholm — 2009-12-16
• Eur. carrier — 2009-11-05
• Airline to Stockholm — 2009-07-05
• An original Star Alliance airline — 2009-05-24
• World's first carrier with a transpolar route — 2009-05-22
• Lander at Arlanda — 2009-05-08
• Carrier to Copenhagen — 2009-04-20
• Carrier to Oslo — 2009-01-13
• Eur. carrier — 2008-07-06
• Nordic flier — 2008-06-25
• Carrier to Bergen — 2008-05-27
• Stockholm-bound carrier — 2008-03-16
• Airline to Oslo — 2007-11-14