Cheapest 5x10 storage in Seatac, WA
$39.00$51.55
$12.55 Below average unit priceSecureSpace Self Storage SeaTac
Cheapest 10x10 storage in Seatac, WA
$67.00$86.89
$19.89 Below average unit priceSecureSpace Self Storage SeaTac
Cheapest 10x20 storage in Seatac, WA
$137.00$137
$0.00 Below average unit priceSecureSpace Self Storage SeaTac

Average prices last updated on 01-01-2026.

Average Price by Storage Unit Size in Seatac, WA

Find online move-in rates and specials like first month half off and first month FREE at select Seatac, Washington storage facilities. Below are the average monthly storage unit prices in Seatac, Washington for the most common storage unit sizes.

Unit Size	Average Price	Lowest Price
5' x 5'	$29.17	$24.00
5' x 10'	$51.55	$39.00
10' x 10'	$86.89	$67.00
10' x 15'	Not Available	Not Available
10' x 20'	$137.00	$137.00

The overall average price of a self-storage unit booked in Seatac, Washington over the past 180 days is $61.50.

Data for the cheapest self-storage unit is updated every 15 minutes.

SpareFoot customer reviews

SpareFoot has a 4.3 out of 5 star rating from over 41,000 customer reviews on Trustpilot. See what some of our over one million customers say about us.

Had to redo my reservation due to…

Had to redo my reservation due to problems with online person, associate at the actual office was much more helpful and got me what I needed.

TB by TIMOTHY BUTRUM

Great

Great great great great great

MM by Mark McGuigan

It was all good!😊

TM by Tony Maltbia

Helpful Resources

How Does Self-Storage Work?

First time renting self-storage? Read how it works here.

Storage Unit Size Guide

Find out what size storage unit you need.

Storage Unit Amenities

From climate control to 24-hour access, decide which features you need.

Storage Unit Safety & Security

Learn how storage facilities keep your belongings safe.

Frequently asked questions about storage in Seatac, Washington

What size storage units are available in SeaTac, WA?

You can find various sized storage units at storage facilities in SeaTac, WA, including 5x5 and 5x10 for smaller items, 10x10 and 10x15 for medium-sized items, and 10x20 and 10x30 for larger items.

Do I need climate controlled storage in SeaTac, WA?

If you're planning to store items in SeaTac that are sensitive to extreme heat, cold or humidity then it might be a good idea to rent climate controlled storage. These items include photos, paper documents, electronics, wood furniture and collectibles.

How much is a 10x10 storage unit in SeaTac, WA?

A 10x10 storage unit in SeaTac, WA costs $86.89 per month. Some unit amenities, like 24 hour access, may increase the monthly price..

How much is a storage unit per month in SeaTac?

On average, storage units in SeaTac, WA cost $61.50 per month. Prices vary depending on the unit size you rent and the amenities you choose, like climate control.

What size storage unit do I need for a one bedroom apartment or home in SeaTac?

For a one bedroom apartment or home, a smaller storage unit between 50 to 100 square feet should be enough storage space. This is between a 5x10 and 10x10 storage unit.

Can't decide? Let SpareFoot help you choose.

Storage in Seatac, WA

241 - 267 of 267 Storage Facilities in SeaTac, WA

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Storage prices in Seatac, WA

Average Monthly Price by Storage Unit Size in Seatac, WA

Cheapest Storage in Seatac, WA

Cheapest 5x10 storage in Seatac, WA

Cheapest 10x10 storage in Seatac, WA

Cheapest 10x20 storage in Seatac, WA

Average Price by Storage Unit Size in Seatac, WA

SpareFoot customer reviews

Helpful Resources

Frequently asked questions about storage in Seatac, Washington

What size storage units are available in SeaTac, WA?

Do I need climate controlled storage in SeaTac, WA?

How much is a 10x10 storage unit in SeaTac, WA?

How much is a storage unit per month in SeaTac?

What size storage unit do I need for a one bedroom apartment or home in SeaTac?

Browse Seatac Storage by Amenity

Browse Seatac Storage by Type

Browse Seatac Storage by Unit Size

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