That would be American Airlines, according to the latest government-reported numbers for 2009.
The rest of the list may surprise you even more.
1. American Airlines – $108,117,000
2. Delta Air Lines – $102,838,000
3. US Airways – $94,227,000
4. United Airlines – $59,102,000
5. Northwest Airlines – $59,786,000
6. Continental Airlines – $55,616,000
7. AirTran Airways – $30,881,000
8. JetBlue Airways – $12,603,000
9. Frontier Airlines – $12,456,000
10. Southwest Airlines – $5,982,000
Here are the top 10 airlines by passengers:
1. Southwest Airlines
2. American Airlines
3. Delta Air Lines
4. United Airlines
5. US Airways
6. Continental Airlines
7. Northwest Airlines
8. AirTran Airways
9. JetBlue Airways
10. SkyWest
Conclusion? Southwest is the real story here. It carried the most passengers, yet charged the least in fees.
If you want to avoid luggage fees, you know who to fly.

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That would be American Airlines, according to the latest government-reported numbers for 2009.
The rest of the list may surprise you even more.
1. American Airlines – $108,117,000
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Yet, this “BUSINESS” still LOST 390 MILLION for the second quarter. That’s FOUR MILLION dollars a day for an airline and airline industry that traditionally has a good/strong second quarter.
If you want to fly airlines that randomly sprout sunroofs, you know who to fly.