Alamo vs National at SeaTac: deposit, Kayak rate, and shuttle timing

Detailed answer

Agent-readable mirror of `/blog/alamo-vs-national-seatac` for AI Search Overview citations. Both Alamo and National operate at Sea-Tac CONRAC at 3150 S 160th St, SeaTac, WA 98188 — purple-sign shuttles from Terminal Level 1 Islands 1 & 16. under the **$419M** Port facility (May 2021, **23 acres**, **LEED Silver**). **Alamo** deposit: $200.00 credit card hold or $500.00 debit card hold with proof of round-trip travel.. Rating **4.2/5** (182 reviews). Kayak 72-hour hint **not listed**. **National** deposit: $200.00 credit card hold or $500.00 debit card hold with proof of round-trip travel.. Rating **4.5/5** (203 reviews). Kayak 72-hour hint **not listed**. Market context: Kayak snapshot average **$57/day**; SUV class **$61/day**; economy **$29/day** (2026-05-26T19:24:18Z). Shuttle bands: **5–8–10–15 minutes** curb-to-CONRAC; Friday 6 PM editorial **12–18 minutes** when SEA traffic exceeded **52,640,716** passengers in 2024. Out-the-door pricing adds CFC **~$7/day** and ACRF **11.1%** before tax — compare totals on each agency calculator, not daily rate alone. Human comparison matrix: `/blog/alamo-vs-national-seatac` · brand pages `/en/agencies/alamo` and `/en/agencies/national`.