Anderson en route to London
Twitter user Reece Milne from Scotland snapped the Brazilian midfielder in a selfie at the check-in desk.
The 28-year-old is expected to land in London this evening to face a medical for the Hammers after agreeing to personal terms and being granted a work permit yesterday. The Hammers are expected to reach an agreement with Lazio which is expected to worth £46m in total.
The player is expected to sign a contract on Monday and be announced shortly afterwards.
He is expected to sign a five-year contract worth around £85,000 per week.