Special livery
Illinois One state flag livery
A Southwest aircraft painted with the Illinois state flag.
Confirmed Sep 28, 2026
Airframe story
N8619F is a Southwest Airlines Boeing 737-8H4, serial 33939, registered to Southwest Airlines Co since December 19, 2013. A forum post dates a special Illinois One livery to this aircraft in September 2022, and Southwest has separately confirmed that the Illinois One livery, after being removed from its previous carrier, would return to the fleet on a different aircraft. Community tracking logs show the jet, which does not normally serve El Salvador commercially, among the Southwest 737s that get ferried there for heavy maintenance, a practice the airline shares with other US carriers that send aircraft to Central America for overhauls. In its most recent observed year the airframe logged 1,661 flights and 3,110.9 flight hours, a tempo similar to several 737-8H4 sister ships in the Southwest fleet that flew in the range of roughly 1,600 to 1,800 flights over the same period. Recent chapters show short stays at Houston Hobby and Las Vegas, consistent with a jet cycling through Southwest's domestic network.
Livery guess: Illinois One special livery (Southwest Airlines). A forum post ties N8619F to the Illinois One livery as of September 2022, though Southwest separately confirmed this livery would return to the fleet on a different aircraft, making current livery status uncertain.
- SWA / B738 - Southwest Airlines (Illinois One livery) - Livery Suggestions - Flyboys.Games forum
- Southwest Airlines: Tennessee One and Illinois One liveries will return
- Boeing 737-8H4(W), Southwest Airlines, N, N8619F (MSN 33939/4670)
- Why US Airlines Send Their Aircraft To Central America For Maintenance & Retrofits
Sister ships
- N8687A · Southwest Airlines1738 flights since at least Oct 2025, last seen Oct 10
- N8692F · Southwest Airlines1766 flights since at least Oct 2025, last seen Oct 10
- N8695D · Southwest Airlines1802 flights since at least Oct 2025, last seen Oct 10
- N8644C · Southwest Airlines1623 flights since at least Oct 2025, last seen Oct 10
- N8677A · Southwest Airlines1764 flights since at least Oct 2025, last seen Oct 10
- N8682B · Southwest Airlines1702 flights since at least Oct 2025, last seen Oct 10
127 Boeing 737-8H4 are in the FAA records; 112 still registered; 121 flew in the last year. Most sit with Southwest Airlines Co (74) and Umb Bank Na Trustee (32).
From the FAA registry and observed flights. Inferences are labeled; outside facts are cited.