Cheap Flights from Houston (IAH) to Hanoi (HAN) from HK$4,480~

Start packing your suitcase, because round-trip flights from Houston Airport to HAN start from HK$9,925. That's based on fares advertised within the last 7 days on Expedia for flights departing within the next year. Prices can change quickly, so book now to get the best deal. Prices and availability are subject to change. Additional terms apply.

We understand that things crop up unexpectedly, so we've made it as simple as possible for you to cancel your flight online. Just head to the Customer Service Portal and follow the instructions.

Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Houston Airport to HAN flights, you'll see a "no change fees" filter for you to select.

You'll have 13,900 kilometers to cover on the long-haul Houston to Hanoi route. Wear layers of comfortable clothes and consider taking a pair of noise-canceling headphones.

Unfortunately, there aren't any airlines that directly fly between George Bush Intercontinental Airport (IAH) and HAN. You'll have to book a flight with at least one stop.

Last-minute planners can sometimes score a bargain, with some of the cheapest fares from IAH to HAN cropping up a few weeks prior to the departure date. If you'd rather plan ahead, Expedia compares and updates the best flight deals continuously — as early as a year in advance in some cases. It does depend on the carrier though, as not all airlines publish prices so far in advance.