Underdog Fantasy promo code 'COVERS': Play $5, Get $50 on Dolphins vs. Bills Tonight

Use the Underdog Fantasy promo code 'COVERS' for Dolphins vs. Bills tonight and gain a $50 bonus. With a huge Week 3 slate for the NFL beginning with Thursday Night Football, Underdog Fantasy is one of the best platforms for fantasy and betting.

Luc LeBlanc - Betting Editor at Covers.com
Luc LeBlanc • Content Editor
Sep 18, 2025 • 17:21 ET • 3 min read
Underdog Fantasy promo code for Dolphins vs Bills
Photo By - Use Underdog Fantasy promo code "COVERS" to play $5, Get $50. - IMAGN IMAGES

This Underdog Fantasy promo code "COVERS" allows you to claim $50 in bonus cash by simply placing an initial $5 entry in the Underdog Fantasy app. With the Thursday Night Football matchup between the Miami Dolphins and Buffalo Bills tonight, this offer is perfect for the avid NFL bettor. It's among the best sportsbook promos so be sure to check out all of the offers to maximize value.

With Week 3 of NFL football kicking off tonight with the Dolphins vs. Bills, this is a perfect opportunity to boost your bankroll and take advantage of some intriguing matchups. This offer is not available in MD, MI, PA, and OH.

How the 'Play $5, Get $50' Underdog promo works for Dolphins vs. Bills

Using the Underdog promo code COVERS will allow you to qualify for the 'Play $5, Get $50' offer. This welcome promo is available for all new users. First, register an account at Underdog Fantasy and verify your identity. You must make an initial deposit of at least $5, then place the minimum $5 entry on the Underdog Fantasy app. Upon completing these steps, you will receive your $50 bonus in your account within 72 hours. You must use your bonus within 60 days of issuance, or it will expire.

You can place your initial entry on any available market, including the Dolphins vs. Bills game. For example, you could play $5 on Tyreek Hill to score a touchdown, or on Tua Tagovailoa to throw an interception. Applicable markets for the Dolphins vs. Bills game include player props, moneyline, and spreads.

This Underdog promo, using the code 'COVERS', is subject to a one-time wager requirement which must be fulfilled within 14 days of receiving your $50 bonus. Bonuses are not eligible to be paid out but can be used on new plays. For example, placing a $50 play using your bonus on Josh Allen to score a touchdown at +200 odds would pay out a profit of $100, as the initial $50 play is not included in the payout.


Use the correct Underdog promo code for your state

⏩Underdog Fantasy Promo Code 🌎Eligible States
 "COVERS" AK, AL, AR, AZ, CA, CO, FL, GA, IL, IN, KS, KY, MA, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WI, WV, WY
Claim our Underdog Fantasy promo code today!
Use Underdog promo code "COVERS" to claim $50 with your first $5 play!

How to claim your Underdog bonus for the Dolphins vs. Bills game

Unlocking your bonus with Underdog for the Dolphins vs. Bills game is straightforward. You must follow each simple step to claim your $50 bonus:

  1. 📱 Download the app: Download the Underdog Fantasy sports betting app
  2. 📝 Register: Create your Underdog account, providing required personal info and verifying your identity (use code 'COVERS' to qualify)
  3. 💵 Deposit funds: Make a minimum deposit of $5
  4. 🏈 Make a play: Place your first $5 play on any Dolphins vs. Bills market such as a moneyline, spread, or player prop
  5. 🎉 Receive bonus: You will receive your $50 bonus and must meet the one-time playthrough requirement prior to withdrawing any winnings (within 14 days of receiving bonus). You have 60 days to use your bonus.

Sportsbook promos comparison

Choosing the right sportsbook promos for you is easy with Covers. We compare all the best offers for legal sports betting sites in your area.

bet365 DraftKings FanDuel BetMGM
Current Bonus Bet $5, Get $200, Win or Lose Bet $5, Get $200 Bonus Bets
+ $200 off NFL Sunday Ticket
Bet $5, Get $300, If Your Bet Wins $1,500 Bonus Bets Back
Promo Code COVERS None Required None Required CVRBONUS1500
Bonus Type Bet & Get Bet & Get Bet & Get Second Chance Bet
Bonus Amount $300 Bonus Bets $200 Bonus Bets $300 Bonus Bets One (< $50) or five (> $50) bonus bets
Wagering Period Seven Days Seven Days Fourteen Days Seven Days
Min. Deposit $10 $5 $5 $10

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Luc LeBlanc
Content Editor

Luc has been keeping up with various realms of the sports world since a young age, playing an abundance of competitive sports as a child, and is still going strong as a hockey player to this day. Having been involved with sports media and the sports betting world for two years and graduating from university in 2025, he ultimately chose to pursue a career in sports media.Luc has over five years of experience in sports betting across a wide range of professional sports and has been providing valuable insights since debuting in the field as a sports betting expert with various publications in 2023. He has a wide base of sports knowledge, though his favorites are undoubtedly hockey and tennis – always staying up to date with the NHL and following the ATP and WTA tours.When betting, Luc always does his due diligence, analyzing trends and finding value by recognizing and linking valuable props to other probable outcomes.

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