Spirit Airlines A321
NKNarrow-body jet
Fleet as reported in the 2025 annual filing · Registry & ages refreshed Sep 1, 2026
Spirit Airlines ceased operations May 2, 2026. The figures below are the fleet as last reported, not aircraft in service today. The filing is annual, and continues to report a carrier's fleet after it stops flying.
- Passengers flown a year
- 4.9M
- 4th-largest Spirit Airlines sub-fleet
- Airframes in the filing
- 29
- Airports served
- 41
- Countries
- 11
- Departures a day
- 79
- Average age
- 9.6 yr
How Spirit Airlines flies its A321
Filed traffic dataThe count above is the A321 airframes Spirit Airlines owns (US DOT Form 41). This is how it actually flew them to 41 airports across 11 countries — the capacity and busiest routes filed with US DOT T-100 over the trailing 12 months.
Departures flown
28,779
May 2026
Seats flown
6,389,562
Passengers
4.9M
Load factor
77.7%
RPM ÷ ASM
Block hours
75,246
Spirit Airlines's busiest A321 routes
Its busiest A321 routes over the trailing 12 months, by departures.
Atlanta – Fort Lauderdale (ATL–FLL)
956 departures · 176,327 passengers · 581 mi
83.1%
Load
Detroit – Fort Lauderdale (DTW–FLL)
714 departures · 115,714 passengers · 1,127 mi
73.0%
Load
Newark – Fort Lauderdale (EWR–FLL)
693 departures · 131,201 passengers · 1,065 mi
85.3%
Load
Boston – Fort Lauderdale (BOS–FLL)
579 departures · 106,982 passengers · 1,237 mi
83.2%
Load
570 departures · 97,939 passengers · 1,749 mi
77.4%
Load
570 departures · 109,073 passengers · 1,005 mi
86.2%
Load
559 departures · 101,637 passengers · 594 mi
81.9%
Load
Fort Lauderdale – Chicago (FLL–ORD)
557 departures · 105,817 passengers · 1,182 mi
85.6%
Load
Fort Lauderdale – Houston (FLL–IAH)
524 departures · 88,217 passengers · 966 mi
75.8%
Load
510 departures · 81,882 passengers · 502 mi
72.3%
Load
Fort Lauderdale – New York (FLL–LGA)
495 departures · 94,727 passengers · 1,076 mi
86.2%
Load
Orlando – San Juan (MCO–SJU)
480 departures · 98,666 passengers · 1,189 mi
92.6%
Load
440 departures · 82,605 passengers · 1,197 mi
84.6%
Load
Dallas-Fort Worth – Fort Lauderdale (DFW–FLL)
392 departures · 69,380 passengers · 1,119 mi
79.7%
Load
Fort Lauderdale – Philadelphia (FLL–PHL)
355 departures · 65,888 passengers · 993 mi
83.6%
Load
The longest and shortest Spirit Airlines A321 flights
The two ends of the type's working envelope, from the routes it actually flew — not what the airframe is certified to do.
Shortest route flown
177 mi
Fort Lauderdale – Orlando (FLL–MCO)
1h 2m block · 262 departures · 61% load
Flown by Spirit Airlines.
Source: US DOT Bureau of Transportation Statistics, T-100 Segment. Data through May 2026.
Where Spirit Airlines flies the A321 from
Spirit Airlines flies its A321 from 41 US airports in 11 countries. The busiest, by departures:
- FLL
5,447 departures · 34 routes
23.9%
Share
- MCO
2,115 departures · 16 routes
9.3%
Share
- DTW
1,803 departures · 10 routes
7.9%
Share
- ATL
1,264 departures · 8 routes
5.5%
Share
- ORD
1,242 departures · 8 routes
5.4%
Share
- EWR
1,120 departures · 8 routes
4.9%
Share
- IAH
1,097 departures · 10 routes
4.8%
Share
- MIA
987 departures · 9 routes
4.3%
Share
- DFW
839 departures · 8 routes
3.7%
Share
- LGA
809 departures · 5 routes
3.5%
Share
Where the A321 sits in Spirit Airlines's fleet
The A321 is 13.4% of Spirit Airlines's 217 tracked mainline aircraft.
Share of Spirit Airlines's mainline fleet · each type a slice
Other Spirit Airlines types
How old is the Spirit Airlines A321 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.
Monthly Spirit Airlines A321 capacity
Frequently asked
How many A321 does Spirit Airlines have?
Spirit Airlines operates about 29 A321 aircraft — 29 in service and 0 stored in its latest US DOT fleet filing.
Where does Spirit Airlines fly the A321?
Spirit Airlines flies its A321 to about 41 US airports across 11 countries, its busiest route being ATL–FLL.
How old are Spirit Airlines's A321?
Spirit Airlines's A321 fleet averages about 9.6 yr, ranging from 8.4 yr to 11.1 yr.
What is the longest A321 route Spirit Airlines flies?
The longest A321 route Spirit Airlines flew over the trailing 12 months is DTW–LAS, about 1,749 miles.