Delta Air Lines 737-900ER
DLNarrow-body jet
Fleet as reported in the 2025 annual filing · Registry & ages refreshed Nov 1, 2026
- Passengers flown a year
- 33.1M
- 1st-largest Delta Air Lines sub-fleet
- Airframes in the filing
- 163
- Airports served
- 100
- Countries
- 17
- Departures a day
- 613
- Average age
- 10.3 yr
How Delta Air Lines flies its 737-900ER
Filed traffic dataThe count above is the 737-900ER airframes Delta Air Lines owns (US DOT Form 41). This is how it actually flew them to 100 airports across 17 countries — the capacity and busiest routes filed with US DOT T-100 over the trailing 12 months.
Departures flown
223,912
July 2026
Seats flown
40,040,329
Passengers
33.1M
Load factor
83.7%
RPM ÷ ASM
Block hours
563,009
Delta Air Lines's busiest 737-900ER routes
Its busiest 737-900ER routes over the trailing 12 months, by departures.
Atlanta – Raleigh/Durham (ATL–RDU)
6,007 departures · 903,343 passengers · 356 mi
85.8%
Load
Atlanta – Kansas City (ATL–MCI)
4,908 departures · 716,573 passengers · 692 mi
82.6%
Load
Atlanta – Charleston (ATL–CHS)
4,802 departures · 707,526 passengers · 259 mi
83.5%
Load
Atlanta – Indianapolis (ATL–IND)
4,236 departures · 604,278 passengers · 432 mi
80.7%
Load
3,785 departures · 539,242 passengers · 215 mi
80.6%
Load
Atlanta – New Orleans (ATL–MSY)
3,511 departures · 527,276 passengers · 425 mi
84.8%
Load
3,461 departures · 514,889 passengers · 272 mi
84.1%
Load
3,424 departures · 494,172 passengers · 214 mi
82.5%
Load
Atlanta – Pittsburgh (ATL–PIT)
3,267 departures · 460,664 passengers · 526 mi
80.2%
Load
3,262 departures · 500,370 passengers · 516 mi
86.2%
Load
Atlanta – Cincinnati / Covington (ATL–CVG)
3,146 departures · 479,078 passengers · 373 mi
85.5%
Load
2,983 departures · 421,392 passengers · 554 mi
79.7%
Load
2,911 departures · 411,125 passengers · 447 mi
79.4%
Load
2,827 departures · 385,133 passengers · 332 mi
77.7%
Load
2,709 departures · 380,226 passengers · 484 mi
79.0%
Load
The longest and shortest Delta Air Lines 737-900ER 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
2,466 mi
Fairbanks – Minneapolis (FAI–MSP)
5h 19m block · 185 departures · 89% load
Flown by Delta Air Lines. A long leg for a narrow-body twin — far enough from a diversion airport that the type carries an ETOPS rating.
Shortest route flown
134 mi
Atlanta – Birmingham (ATL–BHM)
54m block · 2,613 departures · 77% load
Flown by Delta Air Lines. About 54m 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 Delta Air Lines flies the 737-900ER from
Delta Air Lines flies its 737-900ER from 100 US airports in 17 countries. The busiest, by departures:
- ATL
61,923 departures · 81 routes
28.3%
Share
- MSP
16,486 departures · 43 routes
7.5%
Share
- DTW
10,387 departures · 28 routes
4.8%
Share
- SLC
10,109 departures · 28 routes
4.6%
Share
- LAX
6,800 departures · 15 routes
3.1%
Share
- SEA
5,772 departures · 13 routes
2.6%
Share
- JFK
5,467 departures · 12 routes
2.5%
Share
- RDU
4,458 departures · 7 routes
2.0%
Share
- LAS
4,324 departures · 7 routes
2.0%
Share
- SFO
4,260 departures · 6 routes
1.9%
Share
Where the 737-900ER sits in Delta Air Lines's fleet
The 737-900ER is 15.9% 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 737-900ER 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 163 737-900ER tail numbers in Delta Air Lines's fleet →
Monthly Delta Air Lines 737-900ER capacity
Frequently asked
How many 737-900ER does Delta Air Lines have?
Delta Air Lines operates about 163 737-900ER aircraft — 163 in service and 0 stored in its latest US DOT fleet filing.
Where does Delta Air Lines fly the 737-900ER?
Delta Air Lines flies its 737-900ER to about 100 US airports across 17 countries, its busiest route being ATL–RDU.
How old are Delta Air Lines's 737-900ER?
Delta Air Lines's 737-900ER fleet averages about 10.3 yr, ranging from 3.2 yr to 13.1 yr.
What is the longest 737-900ER route Delta Air Lines flies?
The longest 737-900ER route Delta Air Lines flew over the trailing 12 months is FAI–MSP, about 2,466 miles.