Southwest Washington Regional Airport
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Complete wait time breakdown for KLS - security, immigration & more
- Very light flight schedule
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Southwest Washington Regional Airport
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Total Queue Time Estimate
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Wait Time History — Southwest Washington Regional Airport
HistoricalSecurity wait times at KLS over time, based on live sensor and API data.
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Tips for Southwest Washington Regional Airport
- Arrive at least 90 minutes early for domestic and 150 minutes for international flights.
- Security is typically busiest 6-9 AM and 4-7 PM. Midday flights (11 AM-2 PM) usually have the shortest queues.
- Check in online and use mobile boarding passes to skip the check-in counter and head straight to security.
- Tuesdays and Wednesdays typically have the lightest passenger traffic. Friday afternoons and Sunday evenings are usually the busiest.
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KLS Airport FAQs
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Peak Hours
Quick Tips
- Arrive 2-3 hours early for international flights
- Check-in online to save time
When to Arrive
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Southwest Washington Regional Airport (KLS) provides real-time security, check-in, and immigration wait time data. TSA PreCheck and CLEAR availability information included. Sign up for detailed wait time estimates.
Last updated: June 10, 2026
About Southwest Washington Regional Airport
Southwest Washington Regional Airport (KLS) serves Kelso in United States. Travelers flying through KLS should plan for variable security wait times depending on time of day and season.
Standard TSA screening is in effect at KLS. Check the security wait times page for current checkpoint conditions.
The busiest travel periods at KLS are Jul, Aug, Dec. During these months, wait times can be 30-50% longer than average. Arriving early is always recommended during busy periods.