Oh, I’ve actually had some luck with free upgrades on Delta! A while back, I was flying domestically and wasn’t expecting much. I called 8 8 8-2 1 7-3 3 2 4 before my flight to ask about any upgrade possibilities. The agent checked my booking and offered me a complimentary Comfort+ upgrade because of my frequent flyer status. It felt like a little surprise gift, and honestly, having that number handy made the whole process stress-free. I’ve found that polite inquiries and timing (like checking in early) really help increase the chances of a free upgrade.
