Here's one that sounds counterintuitive until you do the math. Sometimes, the cheapest way to fly internationally is to buy two separate tickets: a cheap domestic flight to a major hub, then an international fare that originates there. Call it positioning. You're not starting your trip at your home airport. You're starting it somewhere else, on purpose, because the fares are better. The numbers make the case. A direct flight from a mid-size city like Cincinnati or Charlotte to Rome might run $1,100. But a budget carrier can get you to New York for $89 each way. Add a transatlantic fare originating at JFK, which has far more competition and capacity than smaller markets, and you might land the same Rome trip for $750 total. That's $350 saved by spending an extra three hours in a terminal. It works because major international hubs like New York, Chicago, Miami, and Los Angeles attract far more airline competition than smaller markets. More airlines fighting for the same passengers means fares don't stay high for long. Meanwhile, your home airport might have one or two carriers on a given route, no pressure to compete, and prices to match.
Where it works best
Routes from underserved regional airports to popular European, Latin American, or Asian destinations. If you live in a city where one airline dominates the international market, check fares from the nearest hub before assuming that's the floor.
What to watch
When booking two separate tickets you're entering two separate risk pools. If your positioning flight is delayed and you miss your international departure, the second airline doesn't care. They'll charge you to rebook. Build in a generous layover, arrive the night before if the stakes are high, and take travel insurance more seriously than you otherwise might.
One more thing
When possible, avoid positioning through the same airport as your international departure. If a delay cascades into a missed connection, different terminals won't save you but different airports might. Flying into EWR to catch a JFK departure adds a real buffer. Same city, different risk.
