Get the Best Sportsbook Bonuses and Legal Betting Offers in the USA

FlashscoreUSA, powered by the global leader in live sports scores, helps fans stay ahead of every play — and every betting opportunity. Trusted by millions of sports fans worldwide, Flashscore is now your source for the best sportsbook promotions, exclusive welcome bonuses, and updates from legal U.S. sports betting sites.

All sportsbook partners listed below are licensed and regulated in the United States, offering safe, secure, and verified betting platforms for U.S. players.

Compare the Best Legal Sportsbook Offers (Updated 2026)

Looking for the top sportsbook bonuses in the USA? We’ve reviewed and verified the best new-user offers from America’s most trusted brands - including bet365, FanDuel, BetMGM, and more. These sportsbooks are available in multiple legal states and deliver excellent odds, live betting features, and competitive welcome bonuses.

 

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Bet $10 Get $200 Win or Lose! In IL Bet $5 Get $150 Win or Lose!

98%
Live Streaming

21+ Gambling Problem? CALL 1-800-GAMBLER. Deposit required. Paid in Bonus Bets. Bonus Bets wager excluded from returns. New customers only. T&Cs, time limits and exclusions apply. Available in: AZ, CO, IA, IL, IN, KS, KY, LA, MD, MO, NC, NJ, OH, PA, TN, and VA

New Users – Bet $5 Get $250 If Your Bet Wins!

98%
Live Streaming

21+ Gambling Problem? CALL 1-800-GAMBLER. New Users Only. T&Cs apply. Available in: AR, AZ, CO, CT, DC, IL, IN, IA, KS, KY, LA, MA, MD, MI, NC, NJ, NY, OH, PA, TN, VA, VT, WV, WY

Get up to $1,500 Paid Back in Bonus Bet If You Don’t Win Your First Bet

99%
Live Streaming

21+ Gambling Problem? CALL 1-800-GAMBLER or 1-800-MY-RESET. New Users Only. VISIT BETMGM.COM FOR T&Cs. Available in: AZ, CO, DC, IN, IA, KS, KY, MA, MD, MI, NJ, NC, PA, TN, WV, WY

Get up to $1,000 Matched in FanCash

98%
Live Streaming

21+ Gambling Problem? CALL 1-800-GAMBLER. New customers only. T&Cs Apply. Offer excludes NY. Available in AZ, CO, DC, IL, IN, IA, KY, LA, MI, MO, NY, OH, PA, VT, WY

Bet $1, Double Your Wins on Your Next 20 Wagers!

98%
Live Streaming

21+ Gambling Problem? CALL 1-800-GAMBLER. New customers only. Register using eligible promo code. Min. bet $1. Max. $25 per token. T&Cs apply. Available in: AZ, CO, DC, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, NC, NJ, NY, OH, ON, PA, TN, VA, WV, WY

Bet $5+ Get $300 in Bonus Bets If Your Bet Wins

99%
Live Streaming

21+ GAMBLING PROBLEM? CALL 1-800-GAMBLER or 1-800-MY-RESET, (800) 327-5050 or visit gamblinghelplinema.org (MA). Call 877-8-HOPENY/text HOPENY (467369) (NY). Available in: AR, AZ, CO, CT, DC, IA, IL, IN, KS, KY, LA, MA, MD, MI, MO, NC, NJ, NY, OH, PA, TN, VA, VT, WY and WV.