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Design 5  ·  Brutalist Swiss
Bureau of Transportation Statistics — T-100 Segment Data
US AIR
TRAVEL
DATA

32 carriers. 1.4 million route-month records. Five years of domestic and international passenger movement — January 2021 through December 2025. Every seat. Every flight. Every number real.

All-Time Passengers
4.45B
↑
Route-Month Records
1.41M
■
US Carriers Tracked
32
★
Date Range
2021—2025
60 Months
■ BTS Insights | ↑ 32 Carriers | ★ 2,342 Airports | ● 5.57B Seats Offered | ▲ T-100 Segment Dataset | → Jan 2021 – Dec 2025
Section 01
CARRIER
LEADER
BOARD
▲
Top Carrier
Southwest
812,872,123 PAX
2021–2025
Code
Airline
Passengers
Load Fct.
Routes
Airports
Section 02 — Hub Leaderboard
Top Hub
HUB
LEADER
BOARD
●
ATL
232 M Passengers
57 Carriers · 427 Destinations
Section 03
TOP
ROUTES
14 City-Pair Routes
All-Carrier Passengers
2021 – 2025
# Route Passengers Load Factor Carriers Top Carrier Share
Section 04
MONTHLY
SEAT
TREND
→
Period
Jan 2023
→ Dec 2025
36 Months
All-Carrier Monthly Seats Offered + Load Factor — 2023–2025
Seats Offered
Load Factor %
Section 05 — Signature Viz
MARKET
SHARE
BY PAX

Four legacy carriers — Southwest, American, Delta, United — together carried 66.2% of all passengers from 2021–2025. The remaining 28 carriers split the rest. Concentration is real; competition still exists.

Total passengers (all 32 carriers)
4,449,934,605
Passenger Market Share — Top 12 Carriers (2021–2025)