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In November 1993, Southwest Airlines launched the Next-Generation program with an order for 63 737-700s and took delivery of the first one in December 1997. It replaced the 737-300, typically seating 126 passengers in two classes to 149 in all-economy configuration, similar to the Airbus A319.

In long-range cruise, it burns 4,440 lb (2,010 kg) per hour at Mach 0.785 (450 kn; 834 km/h) and FL410, increasing to 4,620–4,752 lb (2,096–2,155 kg) at Mach 0.80 – Mach 0.82 (459–470 kn; 850–871 km/h). As of July 2018, all -700 series on order, 1,128 -700, 120 -700 BBJ, 20 -700C, and 14 -700W aircraft, have been delivered. By June 2018, around one thousand were in service: half of them with Southwest Airlines, followed by Westjet with 56 and United Airlines with 39. The value of a new -700 stayed around $35 million from 2008 to 2018. A 2003 aircraft was valued for $15.5 million in 2016 and $12 million in 2018 and will be scrapped for $6 million by 2023.

Scandinavian Airlines

Scandinavian Airlines, more commonly known and styled as SAS, is the flag carrier of Denmark, Norway, and Sweden. SAS is an abbreviation of the company's full name, Scandinavian Airlines System or legally Scandinavian Airlines System Denmark-Norway-Sweden. Part of the SAS Group and headquartered at the SAS Frösundavik Office Building in Solna, Sweden, the airline operates 180 aircraft to 90 destinations (as of December 2019). The airline's main hub is at Copenhagen-Kastrup Airport, with connections to 109 destinations around the world. Stockholm Arlanda Airport (with 106 destinations) is the second largest hub, with Oslo Airport, Gardermoen being the third major hub of SAS. Minor hubs also exist at Bergen Airport, Flesland, Göteborg Landvetter Airport, Stavanger Airport, Sola, and Trondheim Airport, Værnes. SAS Cargo is an independent, wholly owned subsidiary of Scandinavian Airlines and its main office is at Copenhagen Airport.

In 2017, SAS carried 28.6 million passengers, achieving revenues of 40 billion Swedish kronor. This makes it the eighth-largest airline in Europe and the largest in Denmark and Sweden. The SAS fleet is composed of 180 aircraft consisting of Airbus A319, Airbus A320, Airbus A320neo, Airbus A321, Airbus A330, Airbus A350, and Boeing 737 Next Generation aircraft. SAS also wet leases Airbus A320neo, ATR 72, and Bombardier CRJ900 aircraft.

The airline was founded in 1946 as a consortium to pool the transatlantic operations of Swedish airline Svensk Interkontinental Lufttrafik, Norway's Det Norske Luftfartselskap and Det Danske Luftfartselskab of Denmark. The consortium was extended to cover European and domestic cooperation two years later. In 1951, all the airlines were merged to create SAS. SAS has been described as "an icon of Norwegian–Swedish–Danish cooperation". On 27 June 2018, the Norwegian government announced that it had sold all its shares in SAS.

In 1997, SAS was a founding member of one of the major airline alliances, Star Alliance.

Photo of real plane