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IAH SIN · 9,923 mi · 18h 15m

Houston (Bush) to Singapore Flights

Everything you need to know about the IAH → SIN international route — flight time, airlines, fares, and booking tips. Track your flight in real time with TripTrack.

$890-$3910 round trip · 1-2 daily flights · Updated March 2026


✈️ Route Overview

Key facts for the Houston (Bush) to Singapore route

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Distance
9,923 miles (15,970 km)
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Avg Flight Time
18h 15m
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Timezone Change
+13 hours
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Daily Flights
1-2
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Typical Fare
$890-$3910 round trip
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Red-Eye Available
Yes — overnight flights available

🛫 Airlines on This Route

Carriers operating IAH → SIN flights

Airline Notes
Singapore Airlines Primary carrier on this route
AirAsia Operates this route
Garuda Indonesia Operates this route
Philippine Airlines Operates this route
Vietnam Airlines Operates this route
Bangkok Airways Operates this route

💡 Booking Tips

How to get the best deal on Houston (Bush) to Singapore flights

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Best Days to Fly

Midweek departures (Tuesday–Thursday) are generally least expensive

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Fare Range

$890-$3910 round trip. Book 3–6 weeks in advance for domestic routes, 2–3 months for international.

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Red-Eye Flights

✓ Available

Overnight flights on this route can save on hotel costs and maximize your time at the destination.

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Track Your Flight

Once booked, TripTrack automatically imports your flight from your confirmation email. Real-time gate changes and delay alerts — no manual entry needed.


🧳 Travel Tips for This Route

Practical advice from frequent travelers on the IAH → SIN route

  • 1 Visa requirements vary widely across Southeast Asia; check before booking.
  • 2 AirAsia offers budget fares across Southeast Asia.
  • 3 This ultra-long-haul route (9,923 miles) benefits greatly from lie-flat business class seating.


📱 Real-Time Flight Tracking

Track Your IAH → SIN Flight — Automatically

TripTrack monitors your flight in real time — gate changes, delays, and departure updates sent to your phone the moment they happen. Connect your Gmail once and your trips appear automatically. No manual entry.


Frequently Asked Questions — Houston (Bush) to Singapore Flights

How long is the flight from Houston (Bush) to Singapore?

The average flight time from Houston (Bush) (IAH) to Singapore (SIN) is 18h 15m. This is an estimate including taxi, climb, and descent time — actual flight time may vary based on winds and routing.

Which airlines fly from Houston (Bush) to Singapore?

Airlines operating the IAH to SIN route include Singapore Airlines, AirAsia, Garuda Indonesia and 3 more. Check each airline's website for current schedules and availability.

How far is Houston (Bush) from Singapore?

The great-circle distance from Houston (Bush) to Singapore is 9,923 miles (15,970 km). This is the straight-line distance — actual flight paths may be slightly longer.

What are the cheapest days to fly from Houston (Bush) to Singapore?

Midweek departures (Tuesday–Thursday) are generally least expensive. Fares on this route typically range $890-$3910 round trip.

Is there a time zone change flying from Houston (Bush) to Singapore?

Yes — there is a +13 hours when flying from Houston (Bush) to Singapore. TripTrack automatically shows local times for both your departure and arrival airports.

Are there red-eye flights from Houston (Bush) to Singapore?

Yes, overnight (red-eye) flights are available on the IAH to SIN route. These can be a great way to save on hotel costs and maximize time at your destination.

How can I track my Houston (Bush) to Singapore flight in real time?

TripTrack automatically tracks your IAH to SIN flight — showing real-time gate changes, delays, and departure updates. Connect your Gmail once and your booking confirmation is imported automatically. Available free on iOS and Android.