The minimum wage for more than 4,000 workers who require a security badge to do their jobs would go up to $11.22 an hour in January 2015 and $13 an hour in January 2017.
The workers who do jobs ranging from passenger check-in to baggage handling and aircraft cleaning would be affected by the new policies. The proposal also calls for paid time off, health insurance and training for airport workers.
Residents of SeaTac, the city that surrounds the airport, voted in November to raise its minimum wage to $15 an hour. The Washington Supreme Court will hear arguments Thursday on a lawsuit on whether that wage should apply to airport workers.