Boeing 737-300
Narrow-body jet
- Passengers flown a year
- 47.8K
- 55th-most common US type
- Airframes in US fleets
- 12
- US operators
- 4
- Airports served
- 3
- Load factor
- 37.7%
Where the Boeing 737-300 flies
Filed traffic dataThe operators table below counts the registered Boeing 737-300 airframes each airline owns (US DOT Form 41). These figures are how much the type actually flew — departures, seats, and passengers filed with US DOT T-100 over the trailing 12 months, not fleet size.
Departures flown
1,474
July 2026
Seats flown
139,374
Passengers
47,817
Load factor
37.7%
RPM ÷ ASM
Block hours
2,719
Busiest Boeing 737-300 routes
The Boeing 737-300's busiest US routes over the trailing 12 months, by departures.
Alexandria – Harlingen (AEX–HRL)
140 departures · 8,987 passengers · 468 mi
44.6%
Load
106 departures · 4,118 passengers · 652 mi
27.0%
Load
Alexandria – El Paso (AEX–ELP)
101 departures · 4,577 passengers · 816 mi
31.5%
Load
Cincinnati / Covington – Rochester (CVG–ROC)
84 departures · 0 passengers · 461 mi
—
Load
Havana – Miami (HAV–MIA)
76 departures · 172 passengers · 235 mi
19.9%
Load
Cincinnati / Covington – Memphis (CVG–MEM)
58 departures · 0 passengers · 403 mi
—
Load
Alexandria – Fort Cavazos (AEX–GRK)
48 departures · 528 passengers · 313 mi
7.6%
Load
Cincinnati / Covington – New Orleans (CVG–MSY)
42 departures · 0 passengers · 701 mi
—
Load
Nashville – Cincinnati / Covington (BNA–CVG)
39 departures · 0 passengers · 230 mi
—
Load
Nashville – New Orleans (BNA–MSY)
38 departures · 0 passengers · 471 mi
—
Load
Camaguey – Miami (CMW–MIA)
38 departures · 107 passengers · 339 mi
37.1%
Load
Cincinnati / Covington – Minneapolis (CVG–MSP)
34 departures · 0 passengers · 596 mi
—
Load
Alexandria – Jacksonville (AEX–JAX)
33 departures · 1,060 passengers · 646 mi
22.3%
Load
27 departures · 1,070 passengers · 1,125 mi
27.5%
Load
Willemstad – Miami (CUR–MIA)
26 departures · 2,284 passengers · 1,192 mi
59.0%
Load
The longest and shortest Boeing 737-300 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
816 mi
Alexandria – El Paso (AEX–ELP)
2h 10m block · 101 departures · 31% load
Flown by Eastern Air Express.
Shortest route flown
468 mi
Alexandria – Harlingen (AEX–HRL)
1h 39m block · 140 departures · 45% load
Flown by Eastern Air Express. Also one of the type's busiest routes anywhere in the US — a short hop worked like a bus line.
Source: US DOT Bureau of Transportation Statistics, T-100 Segment. Data through July 2026.
Airports the Boeing 737-300 serves
The Boeing 737-300 serves 3 US airports. The busiest, by departures:
- AEX
147 departures · 2 routes · 1 operator
42.4%
Share
- HRL
117 departures · 2 routes · 1 operator
33.7%
Share
- ELP
83 departures · 2 routes · 1 operator
23.9%
Share
Who flies the Boeing 737-300
Two questions in one table. Airframes is what each carrier reported owning in its US DOT fleet filing; seats flown is how much of the type it actually operated. They can rank differently, and the gap is the interesting part.
| Operator | ||||
|---|---|---|---|---|
| Eastern Air Express37Q | 5 | 131.6K | 94.4% | 26.7 yr |
| Kalitta Charters IIKLQ | 3 | 0 | 0.0% | 5.4 yr |
| Aloha Air CargoKH | 3 | — | — | 9.8 yr |
| Northern Air CargoNC | 1 | — | — | 10.9 yr |
Airframes are the latest Form 41 filing; seats flown and share are US DOT T-100 for the type's most-flown operators — a dash means a carrier isn't among them (a freighter operator, or one that flies fewer).
How old is the US Boeing 737-300 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 Boeing 737-300 capacity
How common is the Boeing 737-300?
The Boeing 737-300 makes up 0.1% of all tracked US airline aircraft — the 55th-most common type in service.
Share of all tracked US airline aircraft · top 12 types shown · 118 others hold the remaining 37.5% · Boeing 737-300 is the ringed slice at 0.1%
- 1
872 aircraft
10.0%
Share
- 2
708 aircraft
8.1%
Share
- 3
526 aircraft
6.1%
Share
- 4
481 aircraft
5.5%
Share
- 5
470 aircraft
5.4%
Share
- +49 more types
- 55
Boeing 737-300#55 · this type
12 aircraft
0.1%
Share
Frequently asked
How many Boeing 737-300 are in US airline fleets?
US carriers operate about 12 Boeing 737-300 aircraft across 4 airlines, 10 of them in service.
Which airline operates the most Boeing 737-300?
Eastern Air Express operates the largest US Boeing 737-300 fleet, with about 5 aircraft.
What is the busiest Boeing 737-300 route?
The busiest US route flown by the Boeing 737-300 is AEX–HRL, with about 140 departures over the trailing 12 months.
Which airline flies the Boeing 737-300 the most?
Eastern Air Express flies the most Boeing 737-300 capacity in US service, with about 131.6K seats flown over the trailing 12 months.
How many passengers does the Boeing 737-300 carry?
The Boeing 737-300 carried about 47.8K passengers on US routes over the trailing 12 months.
What is the longest Boeing 737-300 flight?
The longest US route flown by the Boeing 737-300 is AEX–ELP, about 816 miles, flown by Eastern Air Express.
How many airports does the Boeing 737-300 serve?
The Boeing 737-300 serves about 3 US airports, led by Alexandria (AEX).
How old is the average Boeing 737-300?
The US Boeing 737-300 fleet averages about 15.8 yr.
How common is the Boeing 737-300 in US fleets?
The Boeing 737-300 is the 55th-most common aircraft type in tracked US airline fleets, by number of aircraft.