National vs Sixt at SeaTac Airport (2026 Comparison)
National
Sixt
Compare National and Sixt at SeaTac CONRAC: cost tiers, reviews, skip-counter programs, and which brand fits your trip.
Kayak listing snapshots
Kayak SEA snapshot
~$85/day est. (3-day total ÷ 3)
Kayak SEA snapshot
~$26/day (Kayak 72h snapshot)
3-day sedan cost
3-day sedan total ($)
Google Maps rating
Google rating (out of 5)
Side-by-side comparison matrix
Same CONRAC address · free 24/7 shuttle · verified 2026-05-26
| Factor | National | Sixt |
|---|---|---|
| Base rate tier | Premium | Mediumedge |
| 3-day sedan estimate (2 travelers) | $255 | $205edge |
| Kayak daily hint (72h search) | ~$85/day est. (3-day total ÷ 3) | ~$26/day (Kayak 72h snapshot) |
| Google rating | 4.5/5 (203 reviews)edge | 4.4/5 (134 reviews) |
| Security deposit | $200 | $200 |
| Skip-the-counter | Emerald Aisle pick-any-car | Express counter |
| Loyalty program | National Emerald Club | Sixt Express |
| Shuttle wait (typical) | 5–8 minutes peak · 24/7 shared CONRAC shuttle | 5–8 minutes peak · 24/7 shared CONRAC shuttle |
| Family of 4 · SUV · 3 days | $418 | $336edge |
| EV models at CONRAC | Tesla Model 3, Toyota RAV4 Hybrid, Ford Mustang Mach-E | Toyota Prius, Hyundai Kona Electric |
| Unlimited mileage | Yes | Yes |
Estimated pricing — verify at counter. Green “edge” highlights lower cost or higher rating where data allows.
Cost at SeaTac CONRAC
Both National and Sixt operate from the consolidated rental car facility at 3150 S 160th St — identical shuttle service, airport facility charge (~$7/day), and concession recovery fees. The meaningful difference is base rate tier (Premium vs Medium) and how each brand prices SUVs, add-ons, and deposit holds.
For a typical 3-day sedan rental (2 travelers), National estimates $255 all-in vs $205 for Sixt. Family SUV trips widen the gap: National $418 vs Sixt $336 (4 passengers, 3 days).
Reviews & traveler sentiment
National scores 4.5/5 from 203 Google Maps reviews; Sixt holds 4.4/5 (134 reviews). At CONRAC, queue length and vehicle cleanliness dominate feedback — not shuttle logistics, which are shared across all brands.
National — pros
- Fast service
- Clean vehicles
Watch for
- High deposit
- Long queues during peak hours
Sixt — pros
- Clean cars
Watch for
- Can have long queues
Convenience & loyalty bypass
Skip-the-counter programs save 15+ minutes at peak arrival windows. National offers Emerald Aisle pick-any-car (National Emerald Club). Sixt offers Express counter (Sixt Express).
Shuttle wait is identical — 5–8 minutes peak · 24/7 shared CONRAC shuttle — because all agencies share the CONRAC bus loop from baggage claim Islands 1 and 16.
Brand positioning at SeaTac
National Car Rental operates at the Sea-Tac International Airport Consolidated Rental Car Facility located at 3150 S 160th Street, SeaTac, WA 98188. The National counter is situated on the 2nd floor of the four-story RCF, directly adjacent to sister brand Alamo. Travelers arriving at Sea-Tac should follow signs to Ground Transportation on the baggage claim level, then board the free dedicated rental car shuttle bus (…
Sixt at SeaTac Airport offers a premium fleet specializing in luxury and specialty vehicles, including BMW, Mercedes-Benz, Audi, and Jeep models, alongside standard sedans, SUVs, and convertibles. Their counter is located on the 1st floor of the Consolidated Rental Car Facility (RCF). The counter operates 24 hours a day, 7 days a week. After collecting your baggage, board the free rental car shuttle bus outside Bagga…
SeaTac verdict
Choose National if you prioritize Emerald Aisle pick-any-car and Premium-tier fleet choice. Choose Sixt if Express counter fits your loyalty status. Either way, compare deposit holds before you land — debit travelers especially should read each brand's hold policy on the agency cost guides linked above.
Estimated pricing — verify at counter. Last verified 2026-05-26. Kayak card images sourced from Kayak provider logos (r9cdn) per Truth Protocol HTTP validation.
Ready to Rent?
All 12 authorized agencies operate from the same consolidated facility — connected by a free 24/7 shuttle.
