£354 Cheap Flights from Houston (IAH) to Singapore (SIN)

View £354 flight on Wed, 16 Sept 2026Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Changi Airport (SIN)

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Cheap Flights from Houston (IAH) to Singapore (SIN)

Prices were available within the past 7 days and start at £354 for one-way flights and £906 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Qatar Airways
Wed, 21 Oct - Thu, 29 Oct
IAH
Houston
SIN
Singapore
£906 Return, found 4 days ago
£906
Return
found 4 days ago
Select Qatar Airways flight, departing Wed, 21 Oct from Houston to Singapore, returning Thu, 29 Oct, priced at £906 found 4 days ago
Turkish Airlines
Wed, 21 Oct - Thu, 29 Oct
IAH
Houston
SIN
Singapore
£1,074 Return, found 4 days ago
£1,074
Return
found 4 days ago
Select Turkish Airlines flight, departing Wed, 21 Oct from Houston to Singapore, returning Thu, 29 Oct, priced at £1,074 found 4 days ago
EVA Airways
Wed, 21 Oct - Thu, 29 Oct
IAH
Houston
SIN
Singapore
£1,080 Return, found 4 days ago
£1,080
Return
found 4 days ago
Select EVA Airways flight, departing Wed, 21 Oct from Houston to Singapore, returning Thu, 29 Oct, priced at £1,080 found 4 days ago
Lufthansa
Wed, 21 Oct - Thu, 29 Oct
IAH
Houston
SIN
Singapore
£1,148 Return, found 4 days ago
£1,148
Return
found 4 days ago
Select Lufthansa flight, departing Wed, 21 Oct from Houston to Singapore, returning Thu, 29 Oct, priced at £1,148 found 4 days ago
Finnair
Wed, 21 Oct - Thu, 29 Oct
IAH
Houston
SIN
Singapore
£1,153 Return, found 4 days ago
£1,153
Return
found 4 days ago
Select Finnair flight, departing Wed, 21 Oct from Houston to Singapore, returning Thu, 29 Oct, priced at £1,153 found 4 days ago
Emirates
Wed, 21 Oct - Thu, 29 Oct
IAH
Houston
SIN
Singapore
£1,153 Return, found 4 days ago
£1,153
Return
found 4 days ago
Select Emirates flight, departing Wed, 21 Oct from Houston to Singapore, returning Thu, 29 Oct, priced at £1,153 found 4 days ago
Cathay Pacific
Wed, 21 Oct - Thu, 29 Oct
IAH
Houston
SIN
Singapore
£1,156 Return, found 4 days ago
£1,156
Return
found 4 days ago
Select Cathay Pacific flight, departing Wed, 21 Oct from Houston to Singapore, returning Thu, 29 Oct, priced at £1,156 found 4 days ago
Malaysia Airlines
Wed, 21 Oct - Thu, 29 Oct
IAH
Houston
SIN
Singapore
£1,325 Return, found 4 days ago
£1,325
Return
found 4 days ago
Select Malaysia Airlines flight, departing Wed, 21 Oct from Houston to Singapore, returning Thu, 29 Oct, priced at £1,325 found 4 days ago
Air Canada
Sat, 13 Jun - Tue, 30 Jun
IAH
Houston
SIN
Singapore
£1,349 Return, found 8 hours ago
£1,349
Return
found 8 hours ago
Select Air Canada flight, departing Sat, 13 Jun from Houston to Singapore, returning Tue, 30 Jun, priced at £1,349 found 8 hours ago
American Airlines
Sat, 13 Jun - Tue, 30 Jun
IAH
Houston
SIN
Singapore
£1,354 Return, found 8 hours ago
£1,354
Return
found 8 hours ago
Select American Airlines flight, departing Sat, 13 Jun from Houston to Singapore, returning Tue, 30 Jun, priced at £1,354 found 8 hours ago

Find the cheapest month to fly from Houston (IAH) to Singapore (SIN)

November is typically the cheapest month to fly

From £560 - £941 per traveller.

Frequently asked questions

How do I find cheap flights from Houston, TX (IAH-George Bush Intercontinental) to Singapore (SIN-Changi)?
To find a cheap flight from Houston, TX (IAH-George Bush Intercontinental) to Singapore (SIN-Changi), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Houston, TX (IAH-George Bush Intercontinental) to Singapore (SIN-Changi)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Houston, TX (IAH-George Bush Intercontinental) to Singapore (SIN-Changi)?
There are approximately 100 connecting flights per day from Houston, TX (IAH-George Bush Intercontinental) to Singapore (SIN-Changi). Some common connection points include Los Angeles Intl. (LAX), Dallas-Fort Worth Intl. (DFW), and Pearson Intl. (YYZ).
What is the earliest flight from Houston, TX (IAH-George Bush Intercontinental) to Singapore (SIN-Changi)?
The earliest flight from Houston, TX (IAH-George Bush Intercontinental) to Singapore (SIN-Changi) typically departs at approximately 12:40 AM local time, operated by BR. This is a seasonal service active in March and October. An early departure like this can help maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Houston, TX (IAH-George Bush Intercontinental) to Singapore (SIN-Changi)?
You'll typically find the most flights from George Bush Intercontinental (IAH) to Changi (SIN) on a Thursday, with around 76 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United Airlines, American Airlines, and Delta Air Lines. Thursday sees notably more flight options compared to other days of the week.
What are the most popular departure times for flights from Houston, TX (IAH-George Bush Intercontinental) to Singapore (SIN-Changi)?
The most popular departure times for flights from Houston, TX (IAH-George Bush Intercontinental) to Singapore (SIN-Changi) are in the afternoon, from 3pm to 6pm. About 32% of passengers prefer this time. Many major carriers, including Air Canada, Lufthansa and Qatar Airways, offer flights during this window. This timing works well because it allows you to have a productive morning before heading to the airport, and you'll arrive in Singapore ready to start your day.
How long does it take to fly from Houston, TX (IAH-George Bush Intercontinental) to Singapore (SIN-Changi)?
Flying from IAH to SIN with a connection usually takes about 23 hours 20 minutes, traveling roughly 9,925 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Houston, TX (IAH-George Bush Intercontinental) to Singapore (SIN-Changi)?
Select the "Business class" and "First class" filters when looking for IAH to SIN flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Houston, TX (IAH-George Bush Intercontinental) to Singapore (SIN-Changi) flight with Expedia?
It's easy to earn miles on a Houston, TX (IAH-George Bush Intercontinental) to Singapore (SIN-Changi) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Singapore from George Bush Intercontinental (IAH)?
From George Bush Intercontinental (IAH), you can fly directly into Changi (SIN) to reach Singapore. Some flights may connect through major hubs like Dallas-Fort Worth Intl. (DFW), Los Angeles Intl. (LAX), O'Hare Intl. (ORD) before reaching Singapore. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Houston, TX (IAH-George Bush Intercontinental) to Singapore (SIN-Changi) at the last minute?
Typically, booking a last minute flight from Houston, TX (IAH-George Bush Intercontinental) to Singapore (SIN-Changi) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Houston, TX (IAH-George Bush Intercontinental) to Singapore (SIN-Changi) flight and hotel package?
Securing a Houston, TX (IAH-George Bush Intercontinental) to Singapore (SIN-Changi) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Houston, TX (IAH-George Bush Intercontinental) to Singapore (SIN-Changi)?
If you booked your Houston, TX (IAH-George Bush Intercontinental) to Singapore (SIN-Changi) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
George Bush Intercontinental
Destination airport
Changi
Airlines serving
Air Canada, Air France, All Nippon Airways, American Airlines, British Airways, Delta, EVA Airways, Emirates, KLM, Lufthansa, Qatar Airways, Singapore Airlines, Turkish Airlines, United
Return price
£905
Distance
15878 km

Book with confidence

Compare flights from Houston to Singapore easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Houston to Singapore. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Changi in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from George Bush Intercontinental to Changi.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from George Bush Intercontinental (IAH) to Changi (SIN)

The easiest way to view the best deals on flights from Houston to Singapore today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from George Bush Intercontinental to Changi start at just £906 and range up to £1,354.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Houston and Singapore
  • booking your flight during October, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Houston to Singapore flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from George Bush Intercontinental to Changi for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Houston to Singapore easily and book with confidence

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*Available to Expedia members.