Best Online Slots Bonuses for 2019

Bonuses for online slots are great for real-money players looking to earn something extra.

Online slots bonuses can come in various forms, but they all require playing top slots and hitting the big combos. If you're looking to play online slots that offer the best payout rates and massive jackpots, then be sure to join the number one ranked casino on this page, Slots.LV Casino, featuring the very best, multi-payline video slots as well as renowned, three-reel slot machines. Of course, you'll get to keep your slots winnings when you trigger a bonus. The hardest choice you'll have to make is what to do with all that lovely cash.

At OnlineSlots.com we find the best online slots bonuses for you. All of our recommended sites carry regular promotions and attractive welcome bonuses to get you playing and winning right away.

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Check out our recommended casinos

The Best Casinos for Bonuses

  • Our top rated casino
    • Payout %
    • Compatibility
    • Deposit Methods
    • # of Slot Games
    • Game Types
  • #1
    $1000
    Welcome Bonus
    4.75 out of 5 stars
    T&Cs apply
    • Payout %
      97.55%
    • # of Slots Games
      520 +
    • Progressive, Traditional, 3-Reel, 5-Reel, 7-Reel
  • #2
    $1000
    Welcome Bonus
    4.2 out of 5 stars
    T&Cs apply
    • Payout %
      96.32%
    • # of Slots Games
      380 +
    • Progressive, Traditional, 3-Reel, 5-Reel, 7-Reel
  • #3
    $4000
    Welcome Bonus
    4.35 out of 5 stars
    T&Cs apply
    • Payout %
      97.25%
    • # of Slots Games
      400+
    • Progressive, Traditional, 3-Reel, 5-Reel, 7-Reel