$642 Cheap flights from Tan Son Nhat Intl. to George Bush Intercontinental (SGN to IAH)

Make a note of your connecting gate, because there are no direct flights between Ho Chi Minh Saigon Airport and Houston Airport. EVA Air, Qatar Airways and Turkish Airlines are among the airlines that will fly you to Houston with just one stopover.

It takes an average of 21 hours and 21 minutes to fly from Tan Son Nhat Intl. Airport (SGN) to IAH. For this long-haul flight, you’ll want to be as best prepared as possible. Think about bringing a travel pillow for improved sleep, packing some healthy snacks and wearing comfortable clothes.

Your plane will have covered 9,300 mi by the time you’ve left the runway at SGN and touched down smoothly at George Bush Intercontinental Airport (IAH). We recommend you bring plenty of things to occupy yourself — it’ll be a long one.

Unfortunately, you won’t find any airlines that fly straight from Ho Chi Minh Saigon Airport to Houston Airport. But don’t let that small detail stop you. Use any layover as an opportunity to check out the local food and drink, have a shop and potentially find the next city to add to your bucket list.

This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.