Yes, the company and the travel deals shared on Dollar Flight Club are legitimate. Dollar Flight Club essentially acts as an aggregator and curator of flights from across different sources. When customers sign up for their paid subscription service, Dollar Flight Club will send flight alerts straight to their email inbox.
These alerts are triggered whenever there happens to be a flash sale, error fare, or competition between airlines (which sparks a drop in price).
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Dollar Flight Club
Join 1 million members saving up to 90% on roundtrip flights