SOUTHWEST AIRLINES revenue for the last year amounted to 24.96 B CHF, the most of which — 22.69 B CHF — came from its highest performing source at the moment, Passenger, the year earlier bringing 19.90 B CHF. The greatest contribution to the revenue figure was made by United States — last year it brought SOUTHWEST AIRLINES 24.25 B CHF, and the year before that — 21.05 B CHF.