Build story · United States · 1967–2019
Southwest Airlines: one plane type and ten-minute turns
Southwest flew only Boeing 737s, point to point, with fast turnarounds and a fun culture — and made a profit for 47 years in a row.
By Shivam Bhandari · Reviewed 31 October 2026 · How we write
by the numbers
- First flight
- 1971
- Turnaround time in the early years
- about 10 minutes
- Aircraft type
- Boeing 737 only
- Consecutive profitable years
- 47 (1973–2019)
What happened
Herb Kelleher and Rollin King founded Southwest in 1967 with a plan, famously sketched on a napkin, to fly between Dallas, Houston, and San Antonio. Legal battles with rival airlines delayed the first flight until 1971.
In 1972 Southwest had to sell one of its four planes but kept its schedule by turning planes around at the gate in about ten minutes. Fast turns became the core of its model: more flights per plane per day. It flew one aircraft type (the 737) to simplify training and maintenance, used secondary airports, flew point to point rather than through hubs, and skipped assigned seats and meals. Kelleher built a playful, employee-first culture.
Southwest was profitable every year from 1973 to 2019 — 47 consecutive years — an extraordinary record in a volatile industry. Its model was copied worldwide.
Timeline
- 1967
Southwest founded.
- 1971
First flights in Texas.
- 1972
Ten-minute turn becomes core practice.
- 2019
47th straight profitable year.
what made it work
- Every choice served one goal: low cost through high aircraft use.
- Single fleet type simplified operations.
- Culture that made employees care about speed and service.
the lesson
A business model where every decision reinforces the same advantage is extremely hard for rivals to copy.
Apply it to your business
- 1Pick your core advantage and align every decision to it.
- 2Simplify operations to cut costs.
- 3Culture can be a cost advantage.
Laws at work in this story
Figures are rounded and drawn from public reports, company filings and widely cited coverage at the time. Check the company's latest filings before relying on any number.