SeaTac Airport Overnight Parking Rates: Full 2026 Guide

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SeaTac airport overnight parking is any stay at Seattle-Tacoma International Airport's garage or an off-site lot that spans two calendar days — typically a drop-off the evening before a flight and a pick-up the following morning. For 2026, on-airport General Parking costs $5/hour up to a $32/day cap, so a 10-hour overnight stay (9 PM to 7 AM) hits the daily maximum and costs the same as a full 24-hour day. Off-site lots run $12.95–$18.95/day, offering savings of up to 60% versus Reserved Parking at $39/day.

• General Parking daily cap: $32/day — a 10-hour overnight triggers the cap, so you pay the same as a full day.
• Reserved Parking (Floor 4): $39/day — closest to the terminal but the priciest on-airport option.
• Cheapest off-site overnight rate: Jiffy Airport Parking and ShuttlePark2 at $12.95/day — both include free 24/7 shuttles.
• All major off-site lots operate 24/7, making them viable for red-eye departures and early-morning returns.
• EV charging is free for garage parkers — 48 stations available overnight in the on-airport structure.
• 2026 construction note: The SEA Gateway roadway project may cause temporary detours near the terminal frontage. The parking garage stays fully operational.

Compare SEA overnight parking rates from $12.95/day on Triply — book now and lock in your spot before your flight.

How Much Does Overnight Parking at SeaTac Airport Cost?

Overnight parking at SEA costs $32/day for General Parking and $39/day for Reserved Parking in the on-airport garage, per the Port of Seattle's official parking rates (verified April 2026). Off-site lots start at $12.95/day.

The key thing to understand about on-airport billing: General Parking charges $5 per hour with a daily cap of $32. That means any stay longer than about 6.5 hours triggers the cap. A typical overnight stay — say, parking at 9 PM and leaving at 7 AM — is 10 hours. You'll pay the full $32 cap, not 10 × $5.

Reserved Parking on Floor 4 works the same way. It bills at a higher hourly rate and caps at $39/day. If you're only staying one night, the extra $7 over General Parking buys you a guaranteed spot on the floor closest to the skybridge. For most travelers, General Parking is the better overnight value.

Off-site lots charge a flat daily rate — no hourly accumulation. Drop off at 9 PM, pick up at 7 AM the next morning, and you're billed one day at whatever rate the lot charges. That's a meaningful savings versus the on-airport cap.

On-Airport vs. Off-Airport Overnight Parking: Which Is Cheaper?

Off-airport lots are consistently cheaper for overnight stays at SEA. The table below shows the total cost of a single overnight stay (one calendar day billed) across all verified lots and on-airport options (verified April 2026).

Parking at Jiffy Airport Parking overnight saves you $19.05 versus on-airport General Parking — nearly 60% less. Even the priciest off-site covered option, WallyPark Premier Garage at $18.95, costs $20 less than SEA Reserved Parking. The trade-off is a short shuttle ride instead of walking directly to the terminal. For most overnight parkers, that's an easy trade.

For more detail on how General and Reserved Parking differ inside the garage, see our guide to Seattle Airport Parking Garage rates and tips for 2026.

What Are the Best Overnight Parking Lots Near SeaTac Airport?

The best overnight off-site lots at SEA combine low rates, 24/7 shuttle service, and strong security. Here's how the top options break down for overnight travelers specifically.

Best for Price: Jiffy Airport Parking and ShuttlePark2

Jiffy Airport Parking charges $12.95/day and sits about 6 minutes from the terminal. Attendants pick you up directly at your car — you don't have to walk to a shuttle stop in the dark or rain. That's a meaningful perk for late-night drop-offs. ShuttlePark2 matches the $12.95 rate and operates 365 days a year. Their shuttle picks up at your stall and drops off on the 3rd floor of the airport parking structure.

Best for Proximity: Doug Fox Airport Parking

Doug Fox is the closest off-site lot to SEA — about 3 minutes by shuttle. It's been operating longer than any other off-site lot at the airport. The shuttle runs 24/7 on demand. At $14.95/day, it costs $2 more than the cheapest options but the speed to the terminal is hard to beat for early-morning flights.

Best for Covered Overnight Parking: MasterPark Garage

Seattle gets rain. If you'd rather not find a wet car after an overnight stay, MasterPark Garage offers covered parking at $17.99/day. It also has EV charging via Juicer and a rewards program for frequent parkers. WallyPark Premier Garage is the other covered option at $18.95/day — it adds free WiFi and complimentary coffee and water.

If you're focused on off-site lots more broadly, our Seattle Airport off-site parking guide compares all major lots in depth.

How Does SeaTac Overnight Parking Billing Work (Hourly vs. Daily Cap)?

On-airport billing uses an hourly rate with a daily cap. You're charged $5/hour for General Parking until you hit the $32 daily maximum. After that, no additional charges accumulate for that calendar day.

Here's a practical breakdown for common overnight scenarios at SEA General Parking:

• Park 10 PM, leave 5 AM (7 hours): 7 × $5 = $35 — but capped at $32. You pay $32.
• Park 9 PM, leave 7 AM (10 hours): Exceeds cap. You pay $32.
• Park 11 PM, leave 2 AM (3 hours): 3 × $5 = $15. Under the cap — you pay $15.
• Park 9 PM, leave 9 PM next day (24 hours): Two billing days possible — check the Port of Seattle's exact midnight reset policy.

The daily cap resets based on a calendar day (midnight-to-midnight) cycle at the on-airport garage, per standard Port of Seattle billing practice. If your overnight stay crosses midnight, you may be billed for two partial days depending on the total duration. For stays under about 6.5 hours that don't cross midnight, hourly billing applies and you may pay less than $32.

Off-site lots charge a flat daily rate per calendar day. One overnight = one day billed. No hourly accumulation, no surprises at the exit.

Which SeaTac Parking Lots Are Open 24/7 for Late-Night and Early-Morning Flights?

All major off-site lots at SEA operate 24 hours a day, 7 days a week — and all include free shuttle service that runs through the night. This matters for red-eye departures and pre-dawn returns.

• Jiffy Airport Parking: 24/7 shuttle, attendants on site overnight.
• ShuttlePark2: Open 365 days a year, 24/7 shuttle service.
• Ajax Parking R Us: 24/7 shuttle to and from SEA terminal.
• MasterPark Lot A: 24/7 on-demand shuttle with bright yellow eco-friendly buses.
• Doug Fox Airport Parking: 24/7 on-demand shuttle — fastest at ~3 minutes.
• WallyPark Outdoor Self Park: Shuttle every 15–20 minutes around the clock.
• MasterPark Garage: 24/7 on-demand shuttle service.
• WallyPark Premier Garage: Shuttle every 15–20 minutes; text 'shuttle' to (425) 336-2193 for return pickup.

The on-airport garage is also accessible 24/7. You walk or take the skybridge — no shuttle wait. That convenience is part of what you're paying the premium for.

For a full breakdown of shuttle pickup intervals, routes, and drop-off locations, see our dedicated SeaTac airport parking shuttle guide.

Overnight Parking Safety and Security at SEA

Security matters more when your car sits overnight. Here's what each option offers:

• On-airport garage: Covered, fully lit, ~13,000-space structure with 24/7 operation. Most secure option overall.
• Jiffy Airport Parking: Fenced lot, surveillance cameras, well-lit, 24/7 security.
• ShuttlePark2: Self-park and lock, 24/7 security staff, well-lit.
• Ajax Parking R Us: Gated lot, well-lit, 24/7 security.
• MasterPark Lot A and Garage: Surveillance cameras, 24/7 security, eco-shuttle fleet means staff are on site through the night.
• Doug Fox Airport Parking: Fenced and gated, surveillance cameras, 24/7 security.
• WallyPark (both locations): Surveillance cameras, 24/7 security staff.

Weather Tip: Covered vs. Uncovered for Overnight Stays

Seattle averages significant rainfall, especially in winter. If you're parking overnight, a covered lot means a dry car on return. MasterPark Garage ($17.99/day) and WallyPark Premier Garage ($18.95/day) both offer covered overnight parking off-site. On-site, the SEA parking garage is fully covered — but at $32–$39/day.

How Do You Reserve SeaTac Overnight Parking in Advance?

Booking ahead locks in today's rate and guarantees your spot — especially useful around holidays and the 2026 FIFA World Cup matches in Seattle. Here's how to do it:

1. Visit Triply's SEA parking search and enter your drop-off and pick-up dates.
2. Compare all available lots by price, distance, and amenities.
3. Select your lot and pay online — most lots offer free cancellation.
4. Receive a confirmation with your lot address and shuttle instructions.
5. On the night of your trip, drive to the lot and follow check-in instructions. The shuttle takes you to the terminal.

Booking 7–14 days in advance typically unlocks the lowest prepay rates. All eight verified off-site lots listed in this article offer free cancellation, so there's no risk to locking in early. For on-airport Reserved Parking, you can book through the Port of Seattle's parking page to guarantee a Floor 4 spot.

For context on how short-term and overnight rates relate to longer trips, our Seattle Airport parking rates guide covers the full 2026 cost breakdown across all stay lengths.

What Fees and Taxes Are Added to SeaTac Overnight Parking Rates?

On-airport parking fees at SEA may include applicable Washington state and city taxes on top of the base rate. The Port of Seattle does not itemize these publicly in the same way some private operators do, so the $32/day General Parking and $39/day Reserved Parking rates are the figures you'll see at the garage exit. Budget a small buffer for any applicable surcharges if paying at the gate.

Off-site lots booked through third-party platforms like Triply typically display the all-in rate at checkout — what you see is what you pay. If you book directly through a lot's own website, confirm whether the displayed rate includes taxes before completing your reservation.

A few additional tips for overnight parkers:

• Holiday surcharges: Rates at off-site lots can increase during peak travel periods like Thanksgiving, Christmas, and summer. Book early to lock in standard rates.
• Long-stay discounts: If your trip extends beyond one night, weekly rates offer significant savings. SEA General Parking caps at $149/week versus $32/day — that's a break-even at about 4.7 days.
• EV charging: The on-airport garage offers free EV charging at 48 stations for parkers — a genuine perk for overnight EV users that off-site lots only partially match. MasterPark (both locations) and WallyPark Premier Garage offer EV charging as well.
• 2026 construction: The SEA Gateway roadway project targets completion in 2026. Some entrance routes may have temporary detours. The parking garage itself remains fully operational, per the Port of Seattle's UpgradeSEA project page.

Ready to Book Your SEA Overnight Parking?

You now have the full picture on SeaTac airport overnight parking rates for 2026. Off-site lots like Jiffy Airport Parking and ShuttlePark2 at $12.95/day offer the best value — saving you up to $26 per night versus on-airport Reserved Parking. Every major lot runs 24/7 shuttles, so red-eye flights and early-morning departures are fully covered. If you want covered parking and don't mind paying a bit more, MasterPark Garage at $17.99/day is the sweet spot.

Find and reserve your SEA overnight parking spot — compare rates from $12.95/day on Triply and save up to 60% versus the on-airport garage.