Best NFL Betting Promos: Top Sign-Up Offers & Welcome Bonuses for NFL Week 18

NFL Week 18 is packed with must-watch action, including playoff-deciding games and thrilling divisional matchups. With the postseason just around the corner, this is the perfect time to take advantage of the best NFL betting promos. Whether you’re betting on Bears vs. Packers or Dolphins vs Jets, these promos offer up to $5,500 in bonus funds to maximize your wagers.

Here’s a breakdown of the top sportsbooks and the best NFL betting promos for NFL Week 18:

Each sportsbook provides a unique bonus structure tailored to different betting strategies, whether you prefer first bet insurance, deposit match offers, or guaranteed bonus bets. Below is a closer look at how these promotions work and how to use them for maximum returns during Week 18.

Best NFL Betting Promos for Week 18

1. bet365 Sportsbook

• bet365 Bonus Code: TOPACTION
  • $1,000 First Bet Safety Net
  • Bet $5, Get $150 in Bonus Bets
  • Exclusive PA Offer: Bet $5, Get $150 in Bonus Bets + 50 Casino Spins
• bet365 Sportsbook States Available: AZ, CO, IA, IN, KY, LA, NC, NJ, OH, PA, VA

The bet365 bonus code TOPACTION provides two outstanding NFL betting promos, perfect for Week 18 matchups. Choose between the $1,000 First Bet Safety Net or a guaranteed $150 in bonus bets with a $5 first bet.

This $1,000 First Bet Safety Net is tailored for bettors who want to place a sizable wager without worrying about losing their stake. If your first bet doesn’t hit, bet365 Sportsbook refunds your stake in bonus bets, up to $1,000.

Let’s say you place a $1,000 first bet on Packers -10 (-110) vs. Bears.

• If Packers cover: Collect $1,909 ($909 profit + $1,000 stake).
• If Packers fail to cover: Receive $1,000 in bonus bets to use on other NFL games, such as Chiefs vs. Broncos or 49ers vs. Cardinals.

For those looking for a smaller start, bet365 Sportsbook has an additional offer where you can get $150 in bonus bets guaranteed. Simply place a $5 first bet, and regardless of the outcome, you’ll unlock $150 in bonus bets.

For bettors in Pennsylvania, the promo gets even better. Use the bet365 bonus code TOPACTION to claim the Bet $5, Get $150 offer and receive an additional 50 spins for bet365 Casino.

Bonus bets must be used within seven days, so plan your wagers accordingly.

2. Fanatics Sportsbook

• Fanatics Sportsbook Promo: Claim Here
  • Bet and Get Up to $1,000 in No Sweat Bets
  • Exclusive New York Offer: Bet $5, Get $50 in Bonus Bets
• Fanatics Sportsbook States Available: AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, NC, NJ, NY, OH, PA, TN, VA, VT, WV, WY

Fanatics Sportsbook offers one of the best NFL betting promos: up to $1,000 in No Sweat Bets over your first 10 days. Whether you’re betting on divisional rivalries or playoff-deciding games, the Fanatics Sportsbook promo promo ensures a low-risk, high-reward approach to wagering.

The Fanatics Sportsbook promo provides up to $1,000 in bonus bets spread over your first 10 days, giving you a second chance to win if your initial wagers fall short. Here’s how it works:

1. Opt-In Daily: Log in each day and activate the No Sweat Bet offer.
2. Place a No Sweat Bet: Wager up to $100 on any eligible market with odds of -500 or longer.
3. Refund on Losses: If your bet loses, Fanatics Sportsbook refunds your stake in bonus bets, up to $100 per day.

For a game as significant as Panthers vs.Falcons, a No Sweat Bet is a perfect tool for confident yet risk-aware wagering.

Say you place a $100 No Sweat Bet on Adam Thielen Anytime Touchdown (+170).

• If Thielen scores: Collect $270 total ($170 profit + $100 stake).
• If Thielen doesn’t score: Receive $100 in bonus bets, which you can use on other Week 18 games.

If you are in New York, the Fanatics Sportsbook promo grants you $50 in bonus bets. All you have to do is place a $5 first bet on an NFL game or any other matchup to net guaranteed bonus bets.

3. BetMGM Sportsbook

• BetMGM Bonus Code TOPTAN1500: 20% Deposit Match, Up to $1,500
• BetMGM Bonus Code TOPACTION: $1,500 First Bet Offer
• BetMGM Available States: AZ, CO, DC, IL, IN, IA, KS, KY, LA, MA, MD, MI, NJ, NC, OH, PA, TN, VA, WV, WY

As the NFL regular season concludes with Week 18, every game offers high-stakes drama, making it the perfect time to take advantage of two of the largest NFL betting promos by utilizing a BetMGM bonus code.

20% Deposit Match, Up to $1,500

Eligible States: AZ, CO, DC, IN, IA, KS, KY, MA, MD, MI, NJ, NC, PA, TN, WV, WY.

The BetMGM bonus code TOPTAN1500 gives you a 20% deposit match on your first deposit, up to $1,500. Here's how the deposit match works:

• Deposit at least $10 to qualify.
• To maximize the bonus, deposit $7,500 or more and receive the full $1,500 match.
• Bonus funds come with a 10x rollover requirement before you can withdraw any winnings.

If you deposit $2,500, you will then receive bonus funds, which can be used like the example below:

• Deposit $2,500 to receive $500 in bonus funds.
• Use these funds to make strategic bets on Week 18 games, like Sterling Shepard Anytime Touchdown (+275).

This promo is perfect for bettors who enjoy spreading their wagers across multiple markets, such as props, spreads, and totals.

$1,500 First Bet Offer

Eligible States: AZ, CO, DC, IN, IA, IL, KS, KY, LA, MA, MD, MI, NJ, NC, OH, PA, TN, VA, WV, WY.

The BetMGM bonus code TOPACTION grants a first bet offer up to $1,500. If your initial wager loses, BetMGM Sportsbook refunds your stake in bonus bets, providing a second chance to win big. Here's how the offer will play out for NFL Week 18:

• Place your first wager on any NFL Week 18 game.
• If your bet wins: Keep your cash winnings.
• If your bet loses: Receive your stake back in five equal bonus bet credits, totaling up to $1,500.

Best first bet for Dolphins vs. Jets :

• Bet: $1,000 on Jets moneyline (-110).
• If the Jets win: Collect $1,909 ($909 profit + $1,000 stake).
• If the Jets lose: Receive five $200 bonus bets to use on future games, with each expiring in seven days.

This offer is ideal for high-stakes bettors looking for added security on their first wager.

4. Caesars Sportsbook

• Caesars Sportsbook Promo Code ACTION41000: $1,000 First Bet Offer
• Caesars Sportsbook Promo Code ACTION4DYW: 10 100% Profit Boost Tokens
• Caesars Sportsbook States Available: AZ, CO, DC, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, NC, NJ, NY, OH, PA, TN, VA, WV, WY

Caesars Sportsbook offers two standout NFL betting promos to maximize your wagers after signing up with a Caesars Sportsbook promo code.

1,000 First Bet Insurance

Caesars Sportsbook Promo Code:ACTION41000
Eligible States: AZ, CO, DC, KY, MD, ME, NY, OH, TN, VA, WY

With Caesars Sportsbook’s $1,000 First Bet Insurance, your initial wager is covered. If your first bet loses, you receive a bonus bet equal to your stake, up to $1,000. This promo gives you the confidence to place a substantial first bet without the fear of losing your bankroll.

How First Bet Insurance Works for NFL Week 18:

• Place Your First Wager: Bet on any eligible NFL Week 18 market, such as spreads, totals, or player props.
• If Your Bet Wins: Collect your cash winnings.
• If Your Bet Loses: Receive your stake back as a bonus bet (up to $1,000).

A first bet for Chargers vs. Raiders:

• Wager: $1,000 on Raiders +4.5 (-110).
• If the Raiders cover: Collect $1,909 total ($909 profit + $1,000 stake).
• If the Raiders fail to cover: Receive a $1,000 bonus bet that must be used within 14 days.

10 Profit Boost Tokens

Caesars Sportsbook Promo Code:ACTION4DYW
Eligible States: AZ, CO, DC, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, NC, NJ, NY, OH, PA, TN, VA, WV, WY

The second promo provides 10 Profit Boost Tokens, each offering a 100% payout boost on winning bets. These tokens allow you to double your profits on wagers, with a maximum bet of $25 per token.

How to Claim and Use Profit Boost Tokens:

1. Sign Up with Caesars Sportsbook Promo Code ACTION4DYW: Register and deposit at least $10.
2. Place a $1+ Wager: Unlock your 10 Profit Boost Tokens.
3. Use Tokens on Any Market: Bet on spreads, moneylines, or props in Week 18 games.

Here's how you can use a Profit Boost Token on Chargers vs. Raiders:

• Wager $25 on Jakobi Myers Anytime Touchdown (+210) with a profit boost token.
• If Jones scores: Earn $105 profit instead of $52.50, thanks to the 100% profit boost.

Alternate NFL Week 18 Betting Promos

If traditional NFL betting promos aren’t available in your state, you still have unique opportunities to get in on this week's NFL slate.

1. Underdog Fantasy (DFS)

• Underdog Fantasy Promo Code:TOPACTION
• Underdog Fantasy Welcome Offer: 50% Deposit Match, Up to $1,000 in Bonus Funds
• Underdog Fantasy States Available: AK, AL, AR, CA, DC, GA, IL, IN, KS, ME, MN, MS, NC, ND, NE, NM, NY, OK, OR, RI, SC, SD, TX, UT, VA, VT, WI, WY

Underdog Fantasy provides a unique twist to NFL Week 18 with Daily Fantasy Sports (DFS) contests. Use the Underdog Fantasy promo code TOPACTION to claim a 50% deposit match on your first deposit, up to $1,000 in bonus funds.

How the Underdog Fantasy Welcome offer works for Week 18:

• Deposit: Add any amount between $10 and $2,000 to your account.
• Bonus Funds: Receive a 50% match on your deposit (e.g., deposit $200 and get $100 in bonus funds).
• Create Lineups: Use your funds to draft DFS lineups featuring top players from Week 18 matchups, like Aaron Rodgers or Justin Jefferson.

2. Fliff Social Sportsbook

• Fliff Promo Code:ACTION
• Fliff Sign-Up Bonus: Spend $50, Get $100 in Fliff Coins
• Fliff States Available: AK, AZ, AR, CA, CO, CT, DC, DE, FL, IL, IN, IA, KS, KY, ME, MD, MA, MI, MO, MT, NE, NH, NJ, NM, NY, NC, ND, OH, OK, OR, PA, RI, SD, TX, UT, VT, VA, WV, WI

Fliff is a social sportsbook that uses Fliff Coins instead of cash, offering a more relaxed approach. Use the Fliff promo codeACTION to claim $100 in Fliff Coins when you spend $50.

How to Use Fliff Coins on NFL Week 18:

• Sign Up: Register with the Fliff promo codeACTION and use your bonus coins to wager on Week 18 games.
• Make Picks: Choose from spreads, moneylines, or player props.
• Redeem Winnings: Fliff Coins can be used for future picks or, depending on state regulations, redeemed for prizes.