Southwest Airlines 737-700
WNNarrow-body jet
Fleet as reported in the 2025 annual filing · Registry & ages refreshed Nov 1, 2026
- Passengers flown a year
- 59.8M
- 1st-largest Southwest Airlines sub-fleet
- Airframes in the filing
- 303
- Airports served
- 113
- Countries
- 11
- Departures a day
- 1,540
- Average age
- 18.3 yr
How Southwest Airlines flies its 737-700
Filed traffic dataThe count above is the 737-700 airframes Southwest Airlines owns (US DOT Form 41). This is how it actually flew them to 113 airports across 11 countries — the capacity and busiest routes filed with US DOT T-100 over the trailing 12 months.
Departures flown
562,011
July 2026
Seats flown
78,560,019
Passengers
59.8M
Load factor
78.3%
RPM ÷ ASM
Block hours
1,033,269
Southwest Airlines's busiest 737-700 routes
Its busiest 737-700 routes over the trailing 12 months, by departures.
6,317 departures · 597,208 passengers · 223 mi
67.7%
Load
5,413 departures · 534,239 passengers · 325 mi
70.6%
Load
Burbank – Sacramento (BUR–SMF)
5,116 departures · 429,393 passengers · 358 mi
60.0%
Load
San Jose – Santa Ana (SJC–SNA)
4,533 departures · 396,899 passengers · 342 mi
62.8%
Load
4,411 departures · 431,276 passengers · 239 mi
70.0%
Load
4,307 departures · 434,038 passengers · 369 mi
72.2%
Load
4,264 departures · 369,479 passengers · 296 mi
61.9%
Load
Las Vegas – Santa Ana (LAS–SNA)
4,254 departures · 474,312 passengers · 226 mi
79.9%
Load
San Diego – Sacramento (SAN–SMF)
4,174 departures · 482,643 passengers · 480 mi
82.7%
Load
San Diego – San Jose (SAN–SJC)
4,082 departures · 445,372 passengers · 417 mi
77.9%
Load
Sacramento – Santa Ana (SMF–SNA)
3,955 departures · 377,093 passengers · 404 mi
68.3%
Load
3,924 departures · 440,161 passengers · 338 mi
80.3%
Load
3,912 departures · 394,707 passengers · 371 mi
72.3%
Load
3,469 departures · 371,209 passengers · 345 mi
76.6%
Load
Las Vegas – San Diego (LAS–SAN)
3,440 departures · 382,604 passengers · 258 mi
79.5%
Load
The longest and shortest Southwest Airlines 737-700 flights
The two ends of the type's working envelope, from the routes it actually flew — not what the airframe is certified to do.
Longest route flown
2,329 mi
Baltimore – Los Angeles (BWI–LAX)
5h 14m block · 216 departures · 91% load
Flown by Southwest Airlines. A long leg for a narrow-body twin — far enough from a diversion airport that the type carries an ETOPS rating.
Shortest route flown
73 mi
Colorado Springs – Denver (COS–DEN)
43m block · 1,348 departures · 78% load
Flown by Southwest Airlines. About 43m of block time, most of it connecting traffic feeding the hub.
Source: US DOT Bureau of Transportation Statistics, T-100 Segment. Data through July 2026.
Where Southwest Airlines flies the 737-700 from
Southwest Airlines flies its 737-700 from 113 US airports in 11 countries. The busiest, by departures:
- LAS
31,274 departures · 61 routes
5.6%
Share
- BWI
27,307 departures · 60 routes
4.9%
Share
- DEN
27,174 departures · 78 routes
4.9%
Share
- DAL
26,275 departures · 61 routes
4.7%
Share
- PHX
24,616 departures · 53 routes
4.4%
Share
- BNA
23,156 departures · 70 routes
4.2%
Share
- MDW
22,475 departures · 72 routes
4.1%
Share
- HOU
21,499 departures · 61 routes
3.9%
Share
- MCO
17,296 departures · 57 routes
3.1%
Share
- BUR
17,189 departures · 18 routes
3.1%
Share
Where the 737-700 sits in Southwest Airlines's fleet
The 737-700 is 40.9% of Southwest Airlines's 858 tracked mainline aircraft.
Share of Southwest Airlines's mainline fleet · each type a slice
Other Southwest Airlines types
How old is the Southwest Airlines 737-700 fleet?
Age is measured from each airframe's delivery date — the FAA airworthiness date where available, otherwise the manufacturer's. Bars share a fixed scale across every fleet page, so two carriers can be compared directly.
See all 303 737-700 tail numbers in Southwest Airlines's fleet →
Monthly Southwest Airlines 737-700 capacity
Frequently asked
How many 737-700 does Southwest Airlines have?
Southwest Airlines operates about 303 737-700 aircraft — 303 in service and 0 stored in its latest US DOT fleet filing.
Where does Southwest Airlines fly the 737-700?
Southwest Airlines flies its 737-700 to about 113 US airports across 11 countries, its busiest route being BUR–LAS.
How old are Southwest Airlines's 737-700?
Southwest Airlines's 737-700 fleet averages about 18.3 yr, ranging from 7.9 yr to 24.6 yr.
What is the longest 737-700 route Southwest Airlines flies?
The longest 737-700 route Southwest Airlines flew over the trailing 12 months is BWI–LAX, about 2,329 miles.