Cheap Flights from Houston (IAH) to Singapore (SIN) from HK$3,155~

Within the past 7 days on Expedia, for flights departing within the next year, the lowest price available for a round-trip flight between IAH and Changi Airport (SIN) was . Fares this good don't last long, so book yours today. Prices and availability are subject to change. Additional terms apply.

Most flights can be conveniently canceled online, but whether you are charged a fee differs between airlines. If you do have to cancel your vacation, follow the instructions in the Customer Service Portal.

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 Changi Airport (SIN) flights, you'll see a "no change fees" filter for you to select.

The distance is around 16,000 kilometers, so fill your carry-on luggage with all you need to make the long journey comfortable. Wondering what to take on board your Houston to Singapore flight? A neck pillow, earplugs and a sleep mask are a few essentials.

Unfortunately, there are no airlines that fly directly between IAH and SIN. You'll have to book a flight with one or more stops.

It is possible to pick up an amazing last-minute deal from George Bush Intercontinental Airport (IAH) to Singapore Airport, but it's also possible to miss out altogether! As many airlines release prices up to a year in advance, it's worthwhile keeping an eye on fares early and being ready to book when you spot a good bargain. Expedia compares carrier prices and updates flight deals all the time, so you can rest easy knowing you're always getting the latest offers.