Delta Air Lines A321
DLNarrow-body jet
Fleet as reported in the 2025 annual filing · Registry & ages refreshed Nov 1, 2026
- Passengers flown a year
- 28.8M
- 2nd-largest Delta Air Lines sub-fleet
- Airframes in the filing
- 127
- Airports served
- 71
- Countries
- 10
- Departures a day
- 493
- Average age
- 4.5 yr
How Delta Air Lines flies its A321
Filed traffic dataThe count above is the A321 airframes Delta Air Lines owns (US DOT Form 41). This is how it actually flew them to 71 airports across 10 countries — the capacity and busiest routes filed with US DOT T-100 over the trailing 12 months.
Departures flown
180,120
July 2026
Seats flown
34,132,035
Passengers
28.8M
Load factor
84.8%
RPM ÷ ASM
Block hours
468,477
Delta Air Lines's busiest A321 routes
Its busiest A321 routes over the trailing 12 months, by departures.
9,222 departures · 1,442,336 passengers · 762 mi
82.7%
Load
Atlanta – West Palm Beach (ATL–PBI)
7,238 departures · 1,134,592 passengers · 545 mi
82.6%
Load
Atlanta – Fort Lauderdale (ATL–FLL)
5,432 departures · 905,001 passengers · 581 mi
87.8%
Load
5,302 departures · 901,294 passengers · 946 mi
89.8%
Load
5,267 departures · 824,521 passengers · 813 mi
82.5%
Load
Atlanta – Philadelphia (ATL–PHL)
5,153 departures · 795,847 passengers · 666 mi
81.5%
Load
4,803 departures · 773,624 passengers · 1,199 mi
85.1%
Load
Atlanta – Dallas-Fort Worth (ATL–DFW)
4,022 departures · 613,036 passengers · 731 mi
80.3%
Load
3,937 departures · 671,546 passengers · 950 mi
90.0%
Load
3,527 departures · 550,953 passengers · 689 mi
82.4%
Load
3,280 departures · 543,735 passengers · 746 mi
87.4%
Load
Atlanta – Minneapolis (ATL–MSP)
3,073 departures · 501,396 passengers · 907 mi
86.2%
Load
Fort Lauderdale – New York (FLL–LGA)
3,003 departures · 498,865 passengers · 1,076 mi
87.5%
Load
Atlanta – San Antonio (ATL–SAT)
2,917 departures · 447,858 passengers · 874 mi
81.0%
Load
Atlanta – Jacksonville (ATL–JAX)
2,882 departures · 471,685 passengers · 269 mi
86.2%
Load
The longest and shortest Delta Air Lines 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.
Longest route flown
1,979 mi
Detroit – Los Angeles (DTW–LAX)
4h 35m block · 843 departures · 84% load
Flown by Delta Air Lines.
Source: US DOT Bureau of Transportation Statistics, T-100 Segment. Data through July 2026.
Where Delta Air Lines flies the A321 from
Delta Air Lines flies its A321 from 71 US airports in 10 countries. The busiest, by departures:
- ATL
56,276 departures · 62 routes
31.8%
Share
- MSP
13,362 departures · 31 routes
7.6%
Share
- LGA
12,553 departures · 8 routes
7.1%
Share
- DTW
11,713 departures · 23 routes
6.6%
Share
- BOS
6,270 departures · 7 routes
3.5%
Share
- FLL
6,169 departures · 6 routes
3.5%
Share
- MCO
6,119 departures · 7 routes
3.5%
Share
- PBI
4,473 departures · 3 routes
2.5%
Share
- DEN
4,253 departures · 4 routes
2.4%
Share
- SLC
4,088 departures · 15 routes
2.3%
Share
Where the A321 sits in Delta Air Lines's fleet
The A321 is 12.4% of Delta Air Lines's 1,025 tracked mainline aircraft.
Share of Delta Air Lines's mainline fleet · each type a slice
Other Delta Air Lines types
How old is the Delta Air Lines 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 Delta Air Lines A321 capacity
Frequently asked
How many A321 does Delta Air Lines have?
Delta Air Lines operates about 127 A321 aircraft — 127 in service and 0 stored in its latest US DOT fleet filing.
Where does Delta Air Lines fly the A321?
Delta Air Lines flies its A321 to about 71 US airports across 10 countries, its busiest route being ATL–LGA.
How old are Delta Air Lines's A321?
Delta Air Lines's A321 fleet averages about 4.5 yr, ranging from 0.7 yr to 10.0 yr.
What is the longest A321 route Delta Air Lines flies?
The longest A321 route Delta Air Lines flew over the trailing 12 months is DTW–LAX, about 1,979 miles.