Updated specific locations to be searchable, take a look at Las Vegas as an example.
r/AirBnBCodes
2,564 subscribers
If you are new to AirBnb, you can use any of the links from the posts to get a referral code. This will get you a discount on your first booking! If you are a seasoned AirBnB user, you can use this subreddit to post promotion codes.

*This subreddit in no way associated with the real Airbnb this is merely a subreddit to share your referral codes*
Notice: This subreddit is not actively monitored, so the posts here are only a small subset of what exists on reddit.
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to r/AirBnBCodes by rockered
9 months ago
AirBnB free $40 for future hosts
to r/AirBnBCodes by hellomonikaaa
1 year ago
Does anyone have any active codes for Spring Break?
to r/AirBnBCodes by Uhfolks
6 months ago
Links just re-directing to main site with no option to claim a credit? What am I doing wrong?
to r/AirBnBCodes by ManipulusNZ
2 months ago
$44 OFF YOUR AIRBNB TRIP
to r/AirBnBCodes by Aboot_Tree_Fiddy
2 months ago
$40 USD or $45 CAD off booking. Just booked my first Airbnb! Thanks for the discount.