Delta Air Lines 737-800
DLNarrow-body jet
Fleet as reported in the 2025 annual filing · Registry & ages refreshed Nov 1, 2026
- Passengers flown a year
- 13.1M
- 6th-largest Delta Air Lines sub-fleet
- Airframes in the filing
- 77
- Airports served
- 100
- Countries
- 19
- Departures a day
- 277
- Average age
- 24.9 yr
How Delta Air Lines flies its 737-800
Filed traffic dataThe count above is the 737-800 airframes Delta Air Lines owns (US DOT Form 41). This is how it actually flew them to 100 airports across 19 countries — the capacity and busiest routes filed with US DOT T-100 over the trailing 12 months.
Departures flown
100,956
July 2026
Seats flown
16,149,590
Passengers
13.1M
Load factor
81.2%
RPM ÷ ASM
Block hours
268,292
Delta Air Lines's busiest 737-800 routes
Its busiest 737-800 routes over the trailing 12 months, by departures.
Los Angeles – San Francisco (LAX–SFO)
3,168 departures · 433,432 passengers · 337 mi
85.5%
Load
Los Angeles – Seattle (LAX–SEA)
2,587 departures · 326,533 passengers · 954 mi
78.9%
Load
Atlanta – Mexico City (ATL–MEX)
2,411 departures · 329,931 passengers · 1,330 mi
85.5%
Load
2,169 departures · 280,886 passengers · 1,107 mi
81.0%
Load
1,967 departures · 243,979 passengers · 1,050 mi
77.5%
Load
1,962 departures · 257,362 passengers · 867 mi
82.0%
Load
Atlanta – Cincinnati / Covington (ATL–CVG)
1,928 departures · 264,193 passengers · 373 mi
85.7%
Load
Seattle – Salt Lake City (SEA–SLC)
1,765 departures · 241,363 passengers · 689 mi
85.5%
Load
Los Angeles – New Orleans (LAX–MSY)
1,579 departures · 191,738 passengers · 1,671 mi
75.9%
Load
1,572 departures · 219,631 passengers · 1,185 mi
87.4%
Load
Atlanta – Toronto (ATL–YYZ)
1,560 departures · 204,786 passengers · 739 mi
82.0%
Load
1,514 departures · 197,812 passengers · 447 mi
81.7%
Load
1,337 departures · 184,002 passengers · 606 mi
86.0%
Load
Reno – Salt Lake City (RNO–SLC)
1,337 departures · 169,063 passengers · 422 mi
79.0%
Load
1,271 departures · 171,402 passengers · 1,620 mi
84.3%
Load
The longest and shortest Delta Air Lines 737-800 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
2,520 mi
5h 47m block · 157 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
129 mi
58m block · 201 departures · 52% load
Flown by Delta Air Lines. About 58m 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 737-800 from
Delta Air Lines flies its 737-800 from 100 US airports in 19 countries. The busiest, by departures:
- ATL
16,740 departures · 64 routes
17.5%
Share
- SEA
8,217 departures · 20 routes
8.6%
Share
- SLC
7,880 departures · 29 routes
8.2%
Share
- LAX
6,024 departures · 14 routes
6.3%
Share
- LGA
3,591 departures · 10 routes
3.8%
Share
- BOS
3,521 departures · 12 routes
3.7%
Share
- CVG
3,051 departures · 7 routes
3.2%
Share
- ORD
2,512 departures · 6 routes
2.6%
Share
- TPA
2,021 departures · 5 routes
2.1%
Share
- JFK
1,970 departures · 8 routes
2.1%
Share
Where the 737-800 sits in Delta Air Lines's fleet
The 737-800 is 7.5% of Delta Air Lines's 1,025 tracked mainline aircraft.
Share of Delta Air Lines's mainline fleet · each type a slice · the 737-800 is the ringed slice at 7.5%
Other Delta Air Lines types
How old is the Delta Air Lines 737-800 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 77 737-800 tail numbers in Delta Air Lines's fleet →
Monthly Delta Air Lines 737-800 capacity
Frequently asked
How many 737-800 does Delta Air Lines have?
Delta Air Lines operates about 77 737-800 aircraft — 77 in service and 0 stored in its latest US DOT fleet filing.
Where does Delta Air Lines fly the 737-800?
Delta Air Lines flies its 737-800 to about 100 US airports across 19 countries, its busiest route being LAX–SFO.
How old are Delta Air Lines's 737-800?
Delta Air Lines's 737-800 fleet averages about 24.9 yr, ranging from 9.4 yr to 28.0 yr.
What is the longest 737-800 route Delta Air Lines flies?
The longest 737-800 route Delta Air Lines flew over the trailing 12 months is SEA–TPA, about 2,520 miles.