737 tracker: every Boeing 737 flying right now
The Boeing 737 has been in production since 1967 and was the most-delivered jetliner in history until the Airbus A320 family passed it in October 2025. This page counts every 737 broadcasting right now, splits them by version and ranks the airlines with the most in the air.
| Flight | Registration | Operator | Type | Altitude | Speed |
|---|---|---|---|---|---|
| Loading… | |||||
Boeing 737 at a glance
- First flight
- April 9, 1967 (737-100)
- Entered service
- February 1968, with Lufthansa
- Generations
- Original (-100, -200), Classic (-300 to -500), Next Generation (-600 to -900), MAX (7 to 10)
- Best-selling version
- 737-800
- Not counted here
- The P-8 Poseidon and E-7 Wedgetail, which broadcast their own type codes
One airplane, four generations
Boeing designed the 737 as a short, stubby jet for routes too small for its 727, with the engines tucked under the wing and the cabin low enough that passengers could board by stairs and bags could be loaded by hand at small airports. Every generation since has kept that fuselage cross-section and low stance.
The Classic of 1984 switched to quieter CFM56 engines, flattened at the bottom to clear the ground. The Next Generation of the late 1990s added a new wing and a glass cockpit and became the best seller. The MAX moved to even larger LEAP-1B engines mounted farther forward, the change that led to MCAS and the 2019 grounding. The 737 MAX tracker tells that story and shows only the MAX.
Who flies the most 737s
Southwest Airlines flies nothing but 737s and has the largest 737 fleet of any airline. Ryanair, United, American, Delta, Alaska and the big Chinese airlines each fly hundreds more, so the busiest part of the map follows daylight around the world. The airline list above ranks who has the most in the air right now, and it looks very different while the US is asleep.
A few older 737-200s still work in remote regions, where their sturdy landing gear suits gravel runways, so the version list occasionally shows a jet from the 1970s or 1980s.
737 or A320?
The Airbus A320 family is the 737's direct rival and now outnumbers it in total deliveries. The A320's cabin is slightly wider and it sits higher off the ground. You can watch them side by side on the A320 tracker, or compare the specifications in A320neo vs 737-800.
Questions
What is the difference between the 737-800 and the 737 MAX 8?
They are about the same size, but the MAX 8 has larger LEAP-1B engines, split-tip winglets and updated systems, and Boeing says it burns about 14 percent less fuel than the most efficient 737-800s. From the ground, look for the sawtooth edges at the back of the MAX's engines and its two-pronged winglets.
What does B738 mean?
B738 is the ICAO code for the 737-800, the code flight-tracking apps show for the aircraft type. The 737-700 is B737, the MAX 8 is B38M and the MAX 9 is B39M. The aircraft codes list explains the rest.
Why isn't an aircraft I know is flying on the map?
Positions come from volunteer ADS-B receivers, which only hear aircraft within roughly 200 nautical miles. Over oceans, deserts and parts of Africa and Asia there are few receivers, so an aircraft can vanish mid-flight and reappear near land. Military and some government aircraft also switch their transponders' public data off.
More live trackers
Positions from the adsb.lol volunteer ADS-B network (ODbL). Aircraft are shown only while a receiver can hear them.