FanDuel Promo Code: Get $300 Betting Bonus for NFL Dolphins-Bills Today (Sept. 18)

By Adam Martin Sep 18th, 2025 8:17 AM EDT

Tap for Promo Visit site

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

Used 41 Times Today

Must be 21+ to participate. Gambling Problem? Call 1-800-GAMBLER or visit FanDuel.com/RG (CO, IA, KY, MI, NJ, OH, PA, IL, TN, VA, VT), 1-800-NEXT-STEP or text NEXTSTEP to 53342 (AZ), 1-888-789-7777 or visit ccpg.org/chat (CT), 1-800-9-WITH-IT (IN), 1-800-522-4700 or visit ksgamblinghelp.com (KS), 1-877-770-STOP (LA), visit www.mdgamblinghelp.org (MD), 1-800-522-4700 (WY), or visit www.1800gambler.net (WV). GamblingHelpLineMA.org or call (800) 327-5050 for 24/7 support (MA). Call 1-877-8HOPE-NY or text HOPENY (467369) (NY).

New users at FanDuel Sportsbook can access the "Bet $5 Get $300 in bonus bets" welcome offer. That's right, all you have to do is deposit $10 or more, bet $5 or more on any sport, and you will get $300 in bonus bets if your bet wins.

You can lock in this sports betting promo on any of your favorite games this week, including all MLB games, NFL Week 3 matchups, College Football, and more!

Miami Dolphins at Buffalo Bills: Time, Odds and Best Bets

• Time: 8:15 p.m. EST
• Venue: Highmark Stadium in Orchard Park, NY
• Spread: Bills -12.5
• Total: 49.5
• Moneyline: Dolphins +575/Bills -835
• Pick: Bills -12.5

This is an incredible welcome bonus, and we highly encourage you to claim this offer today. It's a great opportunity for you to earn $300 in bonus bets if your bet wins. 

FanDuel Promo Code Key Details for September 18, 2025:

Tap for Promo Visit site

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

Used 41 Times Today

Must be 21+ to participate. Gambling Problem? Call 1-800-GAMBLER or visit FanDuel.com/RG (CO, IA, KY, MI, NJ, OH, PA, IL, TN, VA, VT), 1-800-NEXT-STEP or text NEXTSTEP to 53342 (AZ), 1-888-789-7777 or visit ccpg.org/chat (CT), 1-800-9-WITH-IT (IN), 1-800-522-4700 or visit ksgamblinghelp.com (KS), 1-877-770-STOP (LA), visit www.mdgamblinghelp.org (MD), 1-800-522-4700 (WY), or visit www.1800gambler.net (WV). GamblingHelpLineMA.org or call (800) 327-5050 for 24/7 support (MA). Call 1-877-8HOPE-NY or text HOPENY (467369) (NY).

How to Claim the FanDuel Promo Code Today, September 18

FanDuel Sportsbook provides a $300 bonus by just signing up for a new account, depositing at least $10, and then betting $5 or more on any sport. You will get $300 in bonus bets if your bet wins. This sports betting promo is now positioned as one of the best sports betting promos and bonuses available for the MLB, NFL, and College Football.

Here's how you can use the FanDuel Promo Code to score $300 betting bonuses:

1. Click the "Visit Site" button located in this FanDuel Sportsbook promo code
2. No actual promo code is needed -- just sign up for a new account and fill out your registration via the FanDuel Sportsbook app
3. Make your first deposit of at least $10
4. Bet $5 or more
5. Get $300 in bonus bets if your bet wins
6. You get up to seven days to use your bonus bets at FanDuel Sportsbook

You can then use your bonus bets to make any subsequent wagers that you would like. The best part about the bonus bets at FanDuel Sportsbook is that you can use them in any smaller denomination you want. All of this combined makes the FanDuel Sportsbook promo code an amazing sign-up bonus to claim.

Tap for Promo Visit site

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

Used 41 Times Today

Must be 21+ to participate. Gambling Problem? Call 1-800-GAMBLER or visit FanDuel.com/RG (CO, IA, KY, MI, NJ, OH, PA, IL, TN, VA, VT), 1-800-NEXT-STEP or text NEXTSTEP to 53342 (AZ), 1-888-789-7777 or visit ccpg.org/chat (CT), 1-800-9-WITH-IT (IN), 1-800-522-4700 or visit ksgamblinghelp.com (KS), 1-877-770-STOP (LA), visit www.mdgamblinghelp.org (MD), 1-800-522-4700 (WY), or visit www.1800gambler.net (WV). GamblingHelpLineMA.org or call (800) 327-5050 for 24/7 support (MA). Call 1-877-8HOPE-NY or text HOPENY (467369) (NY).

Use FanDuel Promo Code to Bet on Thursday Night Football

The NFL Week 3 TNF game features the Buffalo Bills hosting the Miami Dolphins in a battle of AFC East rivals. A perceived mismatch, the Bills are massive -12.5 point favorites to win.

The Bills have played well to start the season, going 2-0 with a thrilling 41-40 win over the Baltimore Ravens in Week 1, followed by a 30-10 drubbing over the New York Jets in Week 2. The Bills look like one of the best teams in the league and a bona fide Super Bowl contender.

The Dolphins, on the other hand, have been terrible so far, losing 33-8 to the Indianapolis Colts in Week 1 and then losing to the New England Patriots 33-27 in Week 2. Head coach Mike McDaniel’s job is on the hot seat, and he may be fired if the Dolphins get blown out by Buffalo.

I fully expect the Bills to win this game, and likely by double digits as well, given how poorly Miami has played throughout the first two weeks of the season. Look for the Bills to beat the Dolphins in every facet of this game and cover this gigantic -12.5 point spread in a big win.

Bills vs. Dolphins Same Game Parlay

• Leg 1: Bills ML -835
• Leg 2: James Cook anytime TD scorer -165
• Leg 3: James Cook over 65.5 yards rushing -135
• Odds: +213

For our same game parlay, we will take the Bills ML at -835 and parlay it with RB James Cook to score an anytime TD at -165 and rush over 65.5 yards at -135. The total odds for our three-leg same-game parlay are +213. We expect the Bills to win and lean heavily on Cook in this game.

Tap for Promo Visit site

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

Used 28 Times Today

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Popular in Ohio

Must be 21+ to participate. Gambling Problem? Call 1-800-GAMBLER or visit FanDuel.com/RG (CO, IA, KY, MI, NJ, OH, PA, IL, TN, VA, VT), 1-800-NEXT-STEP or text NEXTSTEP to 53342 (AZ), 1-888-789-7777 or visit ccpg.org/chat (CT), 1-800-9-WITH-IT (IN), 1-800-522-4700 or visit ksgamblinghelp.com (KS), 1-877-770-STOP (LA), visit www.mdgamblinghelp.org (MD), 1-800-522-4700 (WY), or visit www.1800gambler.net (WV). GamblingHelpLineMA.org or call (800) 327-5050 for 24/7 support (MA). Call 1-877-8HOPE-NY or text HOPENY (467369) (NY).

About the Author

Adam Martin

More About Adam

A writer based out of Toronto, Adam Martin has covered professional sports, with an emphasis on sports gambling, for more than a decade, writing for such outlets as The Toronto Star and Sportsnet. He is an expert in UFC, while also covering NHL betting and the Stanley Cup.

You can then use your bonus bets to make any subsequent wagers that you would like. The best part about the bonus bets at FanDuel Sportsbook is that you can use them in any smaller denomination you want. All of this combined makes the FanDuel Sportsbook promo code an amazing sign-up bonus to claim.

Sign up for the FanDuel Sportsbook promo code today and take advantage of this great offer from one of the nation's top sportsbooks. This is the perfect time to sign up for FanDuel Sportsbook, so claim this offer right now.

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