Best DFS apps, bonuses, Week 15 NFL promo codes, prop picks for Underdog, Betr, Sleeper, more

New users can take advantage of the top NFL DFS promotions and odds boosts from sites like Underdog Fantasy, Sleeper, Betr, Pick6, Boom, ParlayPlay, Dabble and Playsqor for the 2025 NFL Week 15 schedule on Sunday. There are 14 games on the Sunday schedule, highlighted by Chiefs vs. Chargers, Patriots vs. Bills, Packers vs. Broncos and Cowboys vs. Vikings. Here's a look at some of the top NFL promo codes for parlay sites like Underdog Fantasy, Sleeper and ParlayPlay on Sunday.

Promos for Underdog Fantasy, Betr, Boom, ParlayPlay, Sleeper, Pick6, Dabble, Playsqor

Here's a look at the promo codes being offered by best DFS apps like Underdog Fantasy, Sleeper and ParlayPlay.

Top NFL prop picks for Week 15

One of the top NFL props on Betr Fantasy is Denver receiver Courtland Sutton going lower than 4.5 receptions. The Packers own the No. 5 total defense and the No. 7 pass defense as they'll visit Denver on Sunday. Sutton is averaging 4.3 receptions per game, as the Pack have kept the likes of Justin Jefferson, Amon-Ra St. Brown and DeVonta Smith under 4.5 receptions this season.

On Underdog, one of the model's top picks is Patriots quarterback Drake Maye going lower than 1.5 touchdown passes. Maye has cooled off of late, having thrown one or fewer touchdown passes in two of his last three games. In the first meeting with Buffalo, he did not throw for a touchdown. The SportsLine model projects 1.4 touchdowns, giving this a 3.5 out of 5 rating.

Betr: Get $10 in Betr Bucks upon registration and 50% up to $200 deposit match 

Click here and use the promo code CBSSPORTS to get $10 in Betr Bucks upon registration and 50% up to $200 deposit match with the latest Betr Picks promo code.

Boom Fantasy: $100 First entry refund

New users can click here and get a risk-free entry up to $100 in Boom Fantasy bonus funds if your wager loses with the latest Boom Fantasy promo code.

DraftKings Pick6: Play $5 on First Paid Entry, Get $50 in Pick6 Credits

New users can click here and make an initial wager of $5 or more at DraftKings and then get $50 credit in Pick6 credits with the latest DraftKings Pick6 promo code:

ParlayPlay: 100% deposit match up to $100 + a $5 entry ticket

Get started by clicking here, and get a first deposit match of up to $100 and a free $5 contest entry with the latest ParlayPlay promo code:

Sleeper: 100% deposit match up to $100

Click here and use the Sleeper bonus code CBSSPORTS to receive this bonus from Sleeper, which is offered in the form of site credits. 

Underdog Fantasy: Play $5, get $75 in bonus entries

Click here to get started using the Underdog Fantasy bonus code CBSSPORTS2, which offers new users $75 in bonus entries when they enter a $5 (or higher) contest. 

Dabble Fantasy: New users get $25 sign-up bonus

New users can click here and use the Dabble promo code CBSDAB to get a $25 bonus, which comes in the form of site credits.

Playsqor: 100% deposit match up to $100

Click here to use the Playsqor promo code CBSSPORTS, which gives new users a 100% deposit match up to $100.

Responsible gaming

Responsible gambling is taken very seriously across all contest sites. All provide the necessary resources and contact information if you or someone you know may have a gambling problem. The minimum age is 18 for these sites in most states, but it is 19 or older in Alabama and Nebraska and 21 or older in Massachusetts. 

Responsible gambling resources include the National Council for Problem Gambling (NCPG) and Gamblers Anonymous.

Be smart. Bet smart. Wager responsibly. Those in need of help can also call or text 1-800-GAMBLER (1-800-426-2537). Help is available 24 hours per day and seven days per week.