What is the city code for Seattle, Washington?

The city code for Seattle, Washington is SEA. This code is derived from the Seattle-Tacoma International Airport, which is commonly referred to as Sea-Tac. The three-letter IATA airport code is needed for ticketing, baggage handling, and other airline operations, making it essential for efficient travel logistics. SEA is universally recognized, ensuring travelers can easily navigate their itineraries when flying to and from Seattle.

In contrast, the other options provided do not correspond to Seattle. Instead, they're either not assigned to any major airport or are likely associated with different locations altogether. Understanding these codes is critical for anyone looking to familiarize themselves with air travel and airport identifiers.