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.

Related Betting Pages:

Social Casino Bonuses

Bet $10 Get $365 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 – Get $300 Back in Bonus Bets Every Day For 10 Days!

98%

Live Streaming

21+ Gambling Problem? CALL 1-800-GAMBLER. New Users Only. T&Cs apply. Available in: 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

Why Bet with a Licensed U.S. Sportsbook

Choosing a legal sportsbook ensures safety, transparency, and fair play. All sportsbooks featured on FlashscoreUSA are regulated by state gaming commissions and offer:

Verified payout systems and data protection.
Responsible gaming tools and deposit limits.
Transparent bonus terms and clear wagering requirements.
24/7 customer support and trusted U.S. operations.

When you bet with a licensed sportsbook, your funds and personal information stay protected — every game, every bet.

FlashscoreUSA: Where Live Sports and Legal Betting Connect

With FlashscoreUSA, sports fans gain access to live scores, expert stats, and verified sportsbook offers — all in one place. Use our real-time odds updates and comparison tools to find the best promotions every week.

Whether you’re betting on the NFL, NBA, or college football, we help you bet smarter, safer, and legally.

Start now - compare bonuses, pick your sportsbook, and get in the game with FlashscoreUSA.