As any Lego collector knows, the bricks aren’t cheap, and with new sets constantly pushing into the $400s, $500s, $600s, and beyond, it takes a certain Prime Day to remind us that you can pick up kits for pretty cheap too. To reinforce the point, I’ve found 30 sets that now cost under $30, all of which have been reduced for Prime Day (until, at least for many of them, the end of today).
I’ve got Star Wars, Harry Potter, Minecraft, Friends, Speed Champions, Botanicals, Creator 3 in 1 — a lot of Creator 3 in 1 actually — and more. They’re all listed in price order, by reduced price, starting from the most affordable Lego sets and running up to that $30 barrier. And naturally I’ve omitted deals which weren’t very good, whether it’s because we’ve seen it go for much cheaper, or because the set is always discounted.
Under $10
Creator 3 in 1 Turtle with a Water Lily Flower: was $9.99 now $7.99
You get three cute builds for the price of one with this low-cost set: a turtle and water lily, a frog, and a chameleon, with the same bricks making all three. At just $8, this is one of the cheapest Lego sets worth buying in the sales.View Deal
Creator 3 in 1 Space Shuttle: was $9.99 now $7.99
Not a fan of cute animals? This space-themed 3-in-1 set is a great alternative, letting you build a space shuttle, astronaut or spaceship with the same bricks. It has gone cheaper before, by $1.60, but $8 is still a great price.View Deal
The decorative Lego Botanicals Daisies set has never gone cheaper than this before; it’s part of the brand’s popular decorative range, and at under $10, it’s a nice affordable buy.View Deal
$10-$20
Harry Potter Hogwarts Castle: Charms Class: was $19.99 now $11.99
Not to be confused with the retired Hogwarts Moments: Charms Class set, this build has just been dropped to its lowest price. That’s great news for anyone who’s embarked upon the mission of collecting all the Hogwarts kits.View Deal
Minecraft The Baby Pig House: was $19.99 now $11.99
Now down to its lowest price is this Minecraft pig set, featuring… lots of pigs. This big discount doesn’t mean the rest of the series are getting significant price cuts, though… it’s a porcine of that!View Deal
Technically, this reduction on a Lego City burger truck began just ahead of Prime Day. However this is still the cheapest we’ve seen on this set, which is a little different from the standard Lego City fare.View Deal
Creator 3 in 1 Fierce Dinosaur: was $19.99 now $15.95
This Creator 3 in 1 set has a more succinct theme than many, and if you know a dino fan, it’s a great option. It’s down to its lowest-ever price and, unlike some other Creator sets, seems to be making its foray into that price point.View Deal
Speed Champions Ferrari SF-24: was $26.99 now $15.39
Plenty of Lego’s Speed Champions F1 sets are on offer, but this discount is the best, bringing the Ferrari SF-24 vehicle down to its lowest-ever price for the first time.View Deal
Creator 3 in 1 Exotic Parrot: was $19.99 now $15.98
Another Lego Creator 3 in 1 deal here — they do seem to be stalwarts of Prime Day — on this colorful parrot, frog and fish build. It’s only $0.03 off its lowest-ever price, though it’s no stranger to discounts.View Deal
City Off-Road 4×4 Mountain Truck: was $19.99 now $15.99
Another vehicle build for the same price, this Lego City 4×4 build briefly dipped cheaper by $3 earlier in the year, but otherwise this is the cheapest price we’ve seen it sell for.View Deal
Minecraft Chicken Farm: was $19.99 now $15.99
If you chickened out of the previous Lego Minecraft deal, this Chicken Farm set will offer you a greater variety of animals (though, of course, there are also chickens, and a chicken jockey). It’s never sold for less than this, but this isn’t actually a new discount for Prime Day.View Deal
City Interstellar Spaceship: was $19.99 now $15.99
Calling this a Lego City set may be curious, but calling it a good deal isn’t: the set’s discount means it’s almost at its lowest-ever price (it was $0.04 less last year).View Deal
One Piece Windmill Village Hut: was $29.99 now $16.79
One of the biggest percentage reductions on any Lego set of this list comes from this older One Piece set, which is quite a bit cheaper than its previous lowest price. I imagine stock will be limited on this one.View Deal
Star Wars Death Trooper & Night Trooper Battle Pack.: was $22.99 now $18.39
The first of our two Lego Star Wars discounts hails from Ahsoka, with this Death Trooper & Night Trooper pack. It’s down to within $0.04 of its lowest-ever price, from Black Friday last year.View Deal
Botanics Happy Plants: was $22.99 now $18.39
Another discounted Botanicals set, and one that’s only $0.04 off its lowest-ever price, is this duo of happy-looking plants. View Deal
Wednesday Black Dahlia Flower: was $27.99 now $18.99
This Lego Wednesday-inspired set, which uses Minidolls instead of Minifigures, is now just over $3 cheaper than we’ve ever seen it go before. View Deal
Marvel Epic Battle: Spider-Man vs. Sandman: was $24.99 now $19.99
A rare Spider-Man 3 set here, which depicts one of the movie’s many superhero showdowns. The set is currently available at its lowest price, though it’s sold at this cost before.View Deal
$20-$30
Star Wars Clone Trooper & Battle Droid Battle Pack: was $29.99 now $20.99
Franchise Lego sets rarely go for cheap, and a 30% discount like this one is pretty rare in the Lego world. Technically we’ve seen it for $1 cheaper, but it’s still a great buy at this price, filling up your clone trooper or droid ranks.View Deal
Friends Tree House: was $29.99 now $20.99
I feel like I don’t often see Lego Friends sets discounted during Prime Days, making this a worthy deal at the best of times. However it’s also $3 cheaper than its lowest previous price.View Deal
Classic Medium Creative Brick Box: was $34.99 now $21.42
If you want value for your bricks (and freedom to build what you want), the Lego Classic sets are where to look, and now the Medium box is below $30. This isn’t the cheapest we’ve seen the set go for, but it’s the only option for people who don’t want a specific build.View Deal
Speed Champions Time Machine from Back to the Future: was $27.99 now $22.42
Yes, that’s the real title for this Back to the Future DeLorean set. We’ve seen it go $0.20 cheaper in past sales, but that’s basically just a rounding error.View Deal
Technic Bush Plane: was $27.99 now $22.49
For the Technic-inclined, this 333-piece bush plane set is only a few cents off its past lowest price. Given how Technic is quite a different premise to standard Lego, it’s a great option for people who like a more involved build.View Deal
Botanicals Chrysanthemum: was $29.99 now $23.96
If you don’t want the happy-go-lucky plants shown in discounts below, perhaps this refined chrysanthemum is the one for you. It’s down to the lowest price point we’ve seen it at.View Deal
LEGO Creator 3 in 1 Wild Animals: Colorful Hummingbird: was $29.99 now $23.96
One of the more complex Lego Creator 3 in 1 sets to fall under the $30 price threshold is this wild animals set, which transforms between a hummingbird, butterfly or fish. It’s certainly a colorful set, hence the name, and it’s also at the cheapest we’ve ever seen it.View Deal
Disney Moana 2 Heihei: was $39.99 now $25
Like some of the best discounts on my list, this Moana 2-themed build on the Heihei companion is now at its lowest-ever price thanks to Prime Day.View Deal
Speed Champions Mercedes-AMG G 63 & SL 63: was $44.99 now $26.99
If you like Lego vehicles, you’re getting two for your money here with this Mercedes-AMG box. It went $2 cheaper on Black Friday last year, but otherwise, this is the lowest cost we’ve seen it for.View Deal
Horizon Adventures Aloy & Varl vs. Shell-Walker & Sawtooth: was $44.99 now $26.99
A new discount brings this Horizon: Zero Dawn set (well, technically a Lego Horizon Adventures set) down to its lowest-ever price. A substantial 40% discount brings this under the border for our $30 cut-off.View Deal
Disney Piglet’s Birthday Fun: was $39.99 now $27.99
This Lego Winnie The Pooh set has returned to its lowest-ever price, with a 30% discount. Is it worth it for the cute Piglet minifigure alone? Possibly not, but it’s still an adorable part of the build, and thankfully there are other parts.View Deal
Ninjago Zane’s Ice Dragon Battle: was $39.99 now $27.99
And now for a Ninjago set, but a relatively new one. Not only is this 30% reduction the best price we’ve seen on the set, but as far as I can tell, it’s the only discount it’s seen so far.View Deal
Super Mario: Mario Kart: was $54.99 now $29.39
Squeaking under the border, we have this Lego Super Mario Kart build. Technically it’s part of the Mario Kart interactive race series, but it functions just as well as a buildable toy with some extras. This is a new low price on a set which hasn’t seen huge discounts before.View Deal
You’ll also want to read through our list of the best 2026 Lego sets, and look through our overall round-up of the top Prime Day Lego deals.