It was a scorpion, and it apparently had crawled on board during a stop in Austin, Texas. But it waited until the next leg of the flight to sting passenger Jeff Ellis.
As Ellis monitored himself for signs of an allergic reaction, a doctor on board said he'd be fine -- probably.
Emergency responders in Anchorage were told to get ready to treat him when he arrived. But Ellis says they had a problem: Scorpions aren't common in Alaska, so the EMTs didn't know what to do.
He says, "They had to Google it."
It turned out the doctor was right -- he was fine, and all that's left of the incident is a mark on his arm.
Alaska Airlines, meanwhile, has offered him two round-trip tickets.