Boeing 737-300 seat maps: which airlines fly it

Two airlines have a Boeing 737-300 page here, built from 2LNR's schedule data. Jet2.com schedules it on 61 nonstop routes and Canadian North on 31.

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Airlines listed
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How the live map reads

Airlines flying the Boeing 737-300

Each airline below has its own Boeing 737-300 page, listing the nonstop routes it flies the aircraft on in 2LNR's schedule data. The counts here are that page's own.

An airline needs at least 25 nonstop routes on the Boeing 737-300, on its own metal, and at least 3 aircraft types that clear the same bar to be listed, so a smaller Boeing 737-300 operation can be missing.

Frequently asked questions about the Boeing 737-300

Which airline flies the Boeing 737-300 on the most routes?
Of the airlines with a Boeing 737-300 page here, Jet2.com schedules it on the most nonstop routes in 2LNR's schedule data: 61, reaching 34 airports. Canadian North is next with 31. Schedules move with the seasons, so the order can change.
Does the Boeing 737-300 have the same cabins on every airline?
No. Each airline fits its own cabins and seats, so the Boeing 737-300 on Jet2.com and the Boeing 737-300 on Canadian North can be quite different inside, and one airline can fly more than one layout.
Can I see the Boeing 737-300 seat map for my flight?
Yes, on Pro, for the specific flight and date you're on. 2LNR reads that flight's Boeing 737-300 seat map when you ask, scores the open seats inside your cabin and marks paid seats as paid.

No cabin diagram here

2LNR doesn't publish stored seat diagrams for the Boeing 737-300 or any other aircraft. On Pro it reads the live seat map for a specific flight and date, which is the version that survives an aircraft swap. For a drawing of a cabin you haven't booked, a maintained library such as AeroLOPA is the right tool.

See the seats on your Boeing 737-300 flight

Free to start. Pro adds the live per-flight seat map and seat monitoring.