The next two days are expected to be the busiest at Sea-Tac Airport as thousands of people pass through for Memorial Day weekend.
More than 300,000 people are expected to go through the airport Thursday and Friday alone. Between Wednesday and Sunday, the airport could see upward of 700,000 travelers.
An estimated 161,000 people will travel through the airport Thursday. An estimated 163,000 travelers will pass through Friday.
The least busy days will be Saturday and Sunday, when fewer than 130,000 people are expected to go through the airport each day.
Sea-Tac averages 136,000 travelers per day throughout the year.