3. Southwest Airlines
9/11When it comes to trust, low-cost carrier Southwest Airlines fares the best among the Big Four U.S. airlines. Southwest, which is celebrating its 50th anniversary this summer, navigated the pandemic as well as could be expected, even limiting capacity on every flight to allow for middle seats to remain open for several months in 2020. Southwest is the only airline in the top 10, with competitors Delta Air Lines (14th), American Airlines (18th) and United Airlines (20th) having a long way to go to overcome its dominance.