Any best flight is totally overshadowed by the worst.
Worst one goes back a while. I was flying out of Miami to Paramaribo. It was Terminal C IIRC. Sitting in the waiting room, I saw a technician standing on a step ladder with his head and shoulders in the wing. Then the guy came out, reached down and pulled a length of baling wire off a spool and went back into the wing. After two more trips to the bailing wire he went for a roll of duct tape. I was so-oo happy when they canceled the flight and put us up in a hotel.
Next day we had to take a detour, we went to Mexico City to pick up spectators the World Cup '86. We landed, took on passengers and then had to disembark. We stayed three days in Mexico City before the plane was finally cleared to take off. The ride to Paramaribo was a nail biter, lots of turbulence and anxiety about the whatever the repairs were. I was so happy to get home, even 4 days late.
According to friends on the crew, the guy who sat on the clearance after the repairs told the Suriname Airways guy "the yellow form and the blue form are all here, but where is the green form?" Gotta love third world bureaucrats.