Binge drinking and non-daily cigarette smoking are behaviors that are both problematic and prevalent in young adults. Although the relationship between drinking and daily smoking has been well categorized, the intersection between drinking and smoking in non-daily smokers has not been heavily researched. Past 30-day and within-episode patterns of alcohol and cigarette use were collected in young adult non-daily smokers (N=40). Results demonstrated that 79% of smoking occurred on drinking days. Alcohol use was significantly greater on smoking days with the result that drinking to risky binge levels was more likely to occur on a smoking day. Smoking typically occurred after a certain level of alcohol pre-load (2.87 drinks). Together these results confirm that young adult non-daily smokers often concurrently use alcohol and cigarettes. Research is needed to identify possible mechanisms underlying the association between binge drinking and cigarette use in this vulnerable population.