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Flights from Atlanta (ATL) to Houston (IAH) are nonstop with Delta, American, and Southwest most days. You'll fly 731 miles in about 1 hour 20 minutes for $150-$350 roundtrip if booked smart. IAH is your main Houston airport; HOU is cheaper but has fewer flights.
Delta dominates this route, operating 40+ daily nonstops from ATL. American Airlines runs 15+ daily, mostly on Airbus A320s. Southwest flies 10+ daily but only uses their own gate at ATL, meaning you can't connect easily from other airlines. Don't expect miracles from Allegiant or Spirit—they don't serve this route at all. Delta's schedule is most flexible, with flights every 30 minutes during rush hour. American's best bet is their A320s; they're newer and quieter than Delta's older jets. Southwest? Fun but expensive for the short haul—baggage fees hit $40 for a carry-on if you're not a Rapid Rewards member.
Forget $100 flights—they're gone. In 2024, the real range is $150-$350 roundtrip. Book 3-4 weeks out for the best deals. August? Brutal. $300+ roundtrip minimum. October is your sweet spot: $160-$220 if you act fast. I checked Skyscanner yesterday—Delta had a $182 roundtrip on a Tuesday, but $320 on a Friday. Price swings are wild. Always check both IAH and HOU. For example, a Delta flight to HOU cost $199 last week versus $215 to IAH. HOU is closer to downtown Houston, saving you $25-$40 on a taxi. But if you're flying with Southwest, HOU is your only option—they don't fly to IAH.
Pro tip: Use Delta's app. Their "Last Minute Deals" push notifications catch $150 flights 24 hours before departure. I've snagged two this way. But don't rely on it—book early.
Nonstop flight time is consistently 1 hour 20 minutes. Arrive 2 hours early at ATL—security lines get long, especially before holidays. IAH is huge; your terminal for Delta/AA is Concourse C. HOU is smaller, so you can breeze through security in 15 minutes. But HOU has only 22 gates. If you miss your flight, you'll be stuck waiting hours for the next one. IAH has 30+ gates—better for delays.
Here’s the hard truth: Delta’s on-time performance on this route is 72% (2023 data). American is 68%. Southwest? 75%. So if you’re on a tight connection, skip Southwest. I’ve missed flights because of this—once from a Delta flight to IAH delayed 45 minutes, missing my connection to Cancún. Don’t be me.
October is the cheapest month. Demand drops after Labor Day, and airlines slash prices. September is pricey—$250+ roundtrip. November? Still good, but Thanksgiving weekend spikes prices.
Save $50+ by avoiding weekends. A Tuesday flight costs $170. Friday? $280. Book on a Tuesday. Use Kayak’s "Price Forecast" tool—it predicts when prices drop. I used it last month and saved $80. Also, check for "Delta One" upgrades—they’re not worth it on a 1h 20m flight. Delta’s premium economy seats have 34-inch pitch, but you pay $150 extra for 20 minutes of extra legroom. Skip it.
Personal caveat: I hate Delta’s new "Delta One" seats on this route. For a $350 upgrade, you get a slightly wider seat and better snacks. Not worth it. Stick to main cabin.
A: October. Demand drops after summer, and airlines lower prices. I’ve seen $160 roundtrip flights then. Avoid August and December—prices double.
A: IAH for most travelers. It’s the main airport with more flights, better connections, and easier access to downtown. HOU is cheaper but has fewer flights and is 15 miles from downtown. If you’re on a tight budget, HOU might save $20-$30 on the ticket—but factor in the $30 taxi ride. IAH is worth the extra $10-$20.
A: Delta’s main cabin. Their newer Airbus A320s have 31-inch pitch—better than American’s 30-inch. Southwest’s seats are cramped at 29 inches. I’ve flown all three; Delta’s is the most comfortable for the short haul.
A: 3-4 weeks. I booked a $182 Delta flight 22 days out. Booking 30 days early? You’ll pay $250. If you’re flexible, check deals daily. Use Google Flights’ "Price Alerts" for $150+ flights.
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