£515 Cheap Flights from Singapore (SIN) to Houston (IAH)

View £515 flight on Fri, 25 Dec 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at £515 for one-way flights and £958 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Japan Airlines
Wed, 10 Feb - Wed, 24 Feb
SIN
Singapore
IAH
Houston
£958 Return, found 5 days ago
£958
Return
found 5 days ago
Select Japan Airlines flight, departing Wed, 10 Feb from Singapore to Houston, returning Wed, 24 Feb, priced at £958 found 5 days ago
United
Wed, 10 Feb - Wed, 24 Feb
SIN
Singapore
IAH
Houston
£964 Return, found 5 days ago
£964
Return
found 5 days ago
Select United flight, departing Wed, 10 Feb from Singapore to Houston, returning Wed, 24 Feb, priced at £964 found 5 days ago
All Nippon Airways
Wed, 10 Feb - Wed, 24 Feb
SIN
Singapore
IAH
Houston
£1,012 Return, found 5 days ago
£1,012
Return
found 5 days ago
Select All Nippon Airways flight, departing Wed, 10 Feb from Singapore to Houston, returning Wed, 24 Feb, priced at £1,012 found 5 days ago
EVA Airways
Thu, 24 Dec - Sat, 2 Jan
SIN
Singapore
IAH
Houston
£1,018 Return, found 19 hours ago
£1,018
Return
found 19 hours ago
Select EVA Airways flight, departing Thu, 24 Dec from Singapore to Houston, returning Sat, 2 Jan, priced at £1,018 found 19 hours ago
American Airlines
Wed, 10 Feb - Wed, 24 Feb
SIN
Singapore
IAH
Houston
£1,018 Return, found 5 days ago
£1,018
Return
found 5 days ago
Select American Airlines flight, departing Wed, 10 Feb from Singapore to Houston, returning Wed, 24 Feb, priced at £1,018 found 5 days ago
Emirates
Wed, 10 Feb - Wed, 24 Feb
SIN
Singapore
IAH
Houston
£1,069 Return, found 5 days ago
£1,069
Return
found 5 days ago
Select Emirates flight, departing Wed, 10 Feb from Singapore to Houston, returning Wed, 24 Feb, priced at £1,069 found 5 days ago
Qatar Airways
Wed, 10 Feb - Wed, 24 Feb
SIN
Singapore
IAH
Houston
£1,117 Return, found 5 days ago
£1,117
Return
found 5 days ago
Select Qatar Airways flight, departing Wed, 10 Feb from Singapore to Houston, returning Wed, 24 Feb, priced at £1,117 found 5 days ago
Finnair
Wed, 10 Feb - Wed, 24 Feb
SIN
Singapore
IAH
Houston
£1,234 Return, found 5 days ago
£1,234
Return
found 5 days ago
Select Finnair flight, departing Wed, 10 Feb from Singapore to Houston, returning Wed, 24 Feb, priced at £1,234 found 5 days ago
Air Canada
Wed, 10 Feb - Wed, 24 Feb
SIN
Singapore
IAH
Houston
£1,245 Return, found 5 days ago
£1,245
Return
found 5 days ago
Select Air Canada flight, departing Wed, 10 Feb from Singapore to Houston, returning Wed, 24 Feb, priced at £1,245 found 5 days ago
Delta
Fri, 24 Jul - Sun, 2 Aug
SIN
Singapore
IAH
Houston
£1,275 Return, found 2 days ago
£1,275
Return
found 2 days ago
Select Delta flight, departing Fri, 24 Jul from Singapore to Houston, returning Sun, 2 Aug, priced at £1,275 found 2 days ago

Frequently asked questions

How much is a flight from SIN to IAH?
If you're travelling from Changi Airport (SIN) to IAH, round-trip flights start from £958. This figure is based on fares available within the last 7 days on Expedia for flights departing within the next year, so don't wait around. Book today and save yourself both money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Singapore Airport to Houston Airport?
This varies between airlines, as each has its own terms and conditions. Visit the Customer Service Portal, where there are easy instructions on how to cancel online.
How do I find cheap flights from Changi Airport (SIN) to George Bush Intercontinental Airport (IAH) that have flexible change policies?
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 Singapore Airport to Houston Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Changi Airport (SIN) to George Bush Intercontinental Airport (IAH)?
With around 16,000 kilometres separating Changi Airport and George Bush Intercontinental Airport (IAH), your flight will be a long one. Pack wisely and make your trip comfortable. Simple things like warm clothes and a cosy travel pillow can make a big difference.
Which airlines fly direct from SIN to Houston Airport?
Unfortunately, there aren't any airlines that directly fly between Changi Airport (SIN) and Houston Airport. You'll have to book a flight with at least one stop.
Are Singapore Airport to George Bush Intercontinental Airport (IAH) flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Changi Airport to George Bush Intercontinental Airport (IAH) last minute could be your ticket to a great deal. However, it could end up costing a great deal more! If you'd rather err on the side of caution, book well ahead of your departure date. In fact, Expedia has some of the best bargains as far ahead as 12 months in advance. If your preferred air carrier hasn't released tickets yet, check back often as deals are updated on Expedia all the time.

Frequently asked questions

How do I find cheap flights from Singapore (SIN-Changi) to Houston, TX (IAH-George Bush Intercontinental)?
To find a cheap flight from Singapore (SIN-Changi) to Houston, TX (IAH-George Bush Intercontinental), 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 Singapore (SIN-Changi) to Houston, TX (IAH-George Bush Intercontinental)?
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 Singapore (SIN-Changi) to Houston, TX (IAH-George Bush Intercontinental)?
There are approximately 71 connecting flights per day from Singapore (SIN-Changi) (SIN) to Houston, TX (IAH-George Bush Intercontinental) (IAH). Some common connection points include Incheon Intl. (ICN), Hong Kong Intl. (HKG), and Haneda (HND).
What is the earliest flight from Singapore (SIN-Changi) to Houston, TX (IAH-George Bush Intercontinental)?
The earliest flight from Singapore Changi (SIN) to Houston George Bush Intercontinental (IAH) typically departs at approximately 12:05 AM local time. This service is operated by multiple airlines, including SWISS, Air Leisure, and United Airlines. This is a seasonal service active only in January. 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 Singapore (SIN-Changi) to Houston, TX (IAH-George Bush Intercontinental)?
You'll typically find the most flights from Singapore (SIN-Changi) (SIN) to Houston, TX (IAH-George Bush Intercontinental) (IAH) on a Friday, with around 49 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include JAL, Emirates, and Cathay Pacific.
What are the most popular departure times for flights from Singapore (SIN-Changi) to Houston, TX (IAH-George Bush Intercontinental)?
The most popular departure times for flights from Singapore (SIN-Changi) to Houston, TX (IAH-George Bush Intercontinental) are in the late evening, from 9pm to midnight. About 32% of passengers prefer this time. Many major carriers, including United Airlines, British Airways and American Airlines, offer flights during this window. This timing works well because you can maximise your time in Singapore before your evening flight, and you'll arrive in Houston ready to start your day.
How long does it take to fly from Singapore (SIN-Changi) to Houston, TX (IAH-George Bush Intercontinental)?
A flight from SIN to IAH with a layover takes around 21 hours 30 minutes, with the route covering approximately 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 Singapore (SIN-Changi) to Houston, TX (IAH-George Bush Intercontinental)?
Select the "Business class" and "First class" filters when looking for SIN to IAH 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 Singapore (SIN-Changi) to Houston, TX (IAH-George Bush Intercontinental) flight with Expedia?
It's easy to earn miles on a Singapore (SIN-Changi) to Houston, TX (IAH-George Bush Intercontinental) 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 Houston from Changi (SIN)?
When traveling from Changi (SIN) to Houston, you can fly into William P. Hobby (HOU) and George Bush Intercontinental (IAH). Some flights may connect through major hubs like Narita Intl. (NRT), Haneda (HND), Incheon Intl. (ICN) before reaching Houston. 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 Singapore (SIN-Changi) to Houston, TX (IAH-George Bush Intercontinental) at the last minute?
Typically, booking a last minute flight from Singapore (SIN-Changi) to Houston, TX (IAH-George Bush Intercontinental) 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 Singapore (SIN-Changi) to Houston, TX (IAH-George Bush Intercontinental) flight and hotel package?
Securing a Singapore (SIN-Changi) to Houston, TX (IAH-George Bush Intercontinental) 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 Singapore (SIN-Changi) to Houston, TX (IAH-George Bush Intercontinental)?
If you booked your Singapore (SIN-Changi) to Houston, TX (IAH-George Bush Intercontinental) 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
Changi
Destination airport
George Bush Intercontinental
Airlines serving
Air Canada, Air France, All Nippon Airways, British Airways, Cathay Pacific, EVA Airways, Emirates, Finnair, Japan Airlines, KLM, Korean Air, Lufthansa, Qatar Airways, Singapore Airlines, Swiss International Air Lines, Turkish Airlines
Return price
£957
Distance
15878 km

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