Best IL Sportsbook Promos for October: Claim $5,000+ in IL Sports Betting Promos

Today's best Illinois sportsbook promos are valued at over $5,000 for new users. Check out our complete list of IL sports betting promos for October!

Best Illinois Sports Betting Promos

If you're outside of Illinois, this list of sports betting promos is available in most other states as well. 

Last Updated: October 3, 2025

New bettors have access to thousands of dollars in welcome offers from each of all sports betting apps. Just read on below on how to claim each of these IL sports betting promos. 

Best IL Sportsbook Promos Ranked

Caesars Sportsbook: Bet $1, Double Your Winnings Your Next 20 Bets

It's rare that a $1 bet earns much, but that's not the case with the Caesars Sportsbook promo code ROTO20X. New players who sign up and win their first $1 wager will receive 20 100% profit boosts. That gives you the chance to double your dough at no additional cost to you, just in time for the NFL Season.

bet365: Bet $5, Get $200 in Bonus Bets Win or Lose

Bettors interested in betting on the NFL will want to check out the bet365 bonus code ROTOWIRE. Doing so means that any $5 first wager unlocks a guarantee of $200 in bonus bets. It's obviously a great deal whether you're playing casually or a high roller during this week's NFL game.

Fanatics Sportsbook: Bet $10, Get $50 in FanCash For 5 Days

Fans of sports memorabilia can bet their way toward a new Bears jersey with the Fanatics Sportsbook promo. New bettors can get up to $250 in FanCash over their first 5 days of betting with this Illinois sportsbook promo just by placing a $10+ first bet each day. 

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BetMGM: $1,500 Paid Back in Bonus Bets if You Don't Win

There's a great deal for bettors who use the BetMGM bonus code ROTOSPORTS. Doing so will allow new bettors to place a first bet up to $1,500, and if that bet loses, BetMGM will reimburse that stake in the same amount of bonus bets. 

DraftKings: Bet $5, Get $200 in Bonus Bets Instantly

Guarantees are always great whenever you can find them, and that's what's at stake for players with the DraftKings promo code offer. Signing up and placing any $5 wager unlocks $200 in bonus bets, delivered as eight separate $25 bonus bets. You can also earn cash profit if your qualifying wager is successful, but the bonus bets are yours regardless to use on the odds of your choice.

FanDuel: Bet $5, Get $300 in Bonus Bets if Your Bet Wins

Just one win will help you earn big with the FanDuel promo code offer. New players who sign up and win their first $5 wager will receive $300 in bonus bets. What's great about this deal is that the bonus bets can be divided up to your liking, adding some great versatility to this offer from the sports betting industry leader.

How to Claim IL Sportsbook Promos

If you are a new customer who is at least 21 years old, you can sign up to claim any of these IL Sportsbook promos.

1. ✅ Choose an Illinois sports betting promo code.
2. ✅ Sign up for a new account.
3. ✅ Enter your personal details and verify your account.
4. ✅ Enter our IL sportsbook promo code, if necessary.
5. ✅ Make a deposit. You will be able to deposit using payment methods like PayPal and credit cards.
6. ✅ Make a first qualifying bet.