Delta Air Lines 737-800
DLNarrow-body jet
Fleet as reported in the 2025 annual filing · Registry & ages refreshed Sep 1, 2026
- Passengers flown a year
- 13.1M
- 6th-largest Delta Air Lines sub-fleet
- Airframes in the filing
- 77
- Airports served
- 99
- Countries
- 19
- Departures a day
- 277
- Average age
- 24.8 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 99 airports across 19 countries — the capacity and busiest routes filed with US DOT T-100 over the trailing 12 months.
Departures flown
100,987
May 2026
Seats flown
16,154,484
Passengers
13.1M
Load factor
80.9%
RPM ÷ ASM
Block hours
266,961
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)
3,289 departures · 446,651 passengers · 337 mi
84.9%
Load
Los Angeles – Seattle (LAX–SEA)
2,559 departures · 322,342 passengers · 954 mi
78.7%
Load
Atlanta – Mexico City (ATL–MEX)
2,521 departures · 344,709 passengers · 1,330 mi
85.5%
Load
2,387 departures · 304,168 passengers · 1,107 mi
79.7%
Load
1,989 departures · 243,470 passengers · 1,050 mi
76.5%
Load
1,951 departures · 255,547 passengers · 867 mi
81.9%
Load
Atlanta – Cincinnati / Covington (ATL–CVG)
1,878 departures · 257,821 passengers · 373 mi
85.8%
Load
1,681 departures · 235,095 passengers · 1,185 mi
87.4%
Load
Los Angeles – New Orleans (LAX–MSY)
1,582 departures · 191,687 passengers · 1,671 mi
75.8%
Load
Seattle – Salt Lake City (SEA–SLC)
1,572 departures · 213,917 passengers · 689 mi
85.1%
Load
Atlanta – Toronto (ATL–YYZ)
1,562 departures · 205,038 passengers · 739 mi
82.0%
Load
1,423 departures · 174,103 passengers · 1,448 mi
76.5%
Load
1,361 departures · 176,130 passengers · 447 mi
80.9%
Load
Reno – Salt Lake City (RNO–SLC)
1,329 departures · 167,510 passengers · 422 mi
78.8%
Load
1,277 departures · 185,980 passengers · 1,010 mi
91.0%
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 · 214 departures · 53% 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 May 2026.
Where Delta Air Lines flies the 737-800 from
Delta Air Lines flies its 737-800 from 99 US airports in 19 countries. The busiest, by departures:
- ATL
17,416 departures · 64 routes
18.2%
Share
- SEA
8,541 departures · 20 routes
8.9%
Share
- SLC
7,348 departures · 28 routes
7.7%
Share
- LAX
5,703 departures · 12 routes
5.9%
Share
- LGA
3,487 departures · 9 routes
3.6%
Share
- BOS
3,386 departures · 9 routes
3.5%
Share
- CVG
3,015 departures · 7 routes
3.1%
Share
- TPA
2,126 departures · 5 routes
2.2%
Share
- ORD
2,097 departures · 5 routes
2.2%
Share
- SFO
2,064 departures · 3 routes
2.2%
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 99 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 24.8 yr, ranging from 9.2 yr to 27.9 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.