Songquan Deng // Shutterstock

- Passengers: 4,806 (0.8% of all passengers)
- Top carriers:
--- #1. Southwest Airlines: 4,806

#8. Orlando International (Orlando, FL)

Orhan Cam // Shutterstock

- Passengers: 16,713 (2.7% of all passengers)
- Top carriers:
--- #1. PSA Airlines: 16,497
--- #2. Southwest Airlines: 216

#7. Ronald Reagan Washington National (Washington, DC)

f11photo // Shutterstock

- Passengers: 28,531 (4.6% of all passengers)
- Top carriers:
--- #1. Southwest Airlines: 28,530

#6. Baltimore/Washington International Thurgood Marshall (Baltimore, MD)

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- Passengers: 51,087 (8.2% of all passengers)
- Top carriers:
--- #1. CommuteAir LLC dba CommuteAir: 50,095
--- #2. SkyWest Airlines: 775
--- #3. American Airlines: 131

#5. George Bush Intercontinental/Houston (Houston, TX)

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- Passengers: 64,834 (10.4% of all passengers)
- Top carriers:
--- #1. PSA Airlines: 46,621
--- #2. Piedmont Airlines: 18,165

#4. Charlotte Douglas International (Charlotte, NC)

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- Passengers: 79,937 (12.8% of all passengers)
- Top carriers:
--- #1. Southwest Airlines: 79,937

#3. William P Hobby (Houston, TX)

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- Passengers: 108,900 (17.4% of all passengers)
- Top carriers:
--- #1. Envoy Air: 64,890
--- #2. SkyWest Airlines: 17,032
--- #3. Mesa Airlines: 15,609

#2. Dallas/Fort Worth International (Dallas/Fort Worth, TX)

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- Passengers: 260,919 (41.7% of all passengers)
- Top carriers:
--- #1. Delta Air Lines: 192,714
--- #2. Southwest Airlines: 62,832
--- #3. Endeavor Air: 5,373

This story features data reporting by Rob Powell, writing by Jaimie Etkin, and is part of a series utilizing data automation across 199 metros.

#1. Hartsfield-Jackson Atlanta International (Atlanta, GA)