International route
Cheap flights from Houston to Singapore
George Bush Intercontinental Airport (IAH) to Singapore Changi Airport (SIN). 9,924 miles, connecting flights only.
IAH to SIN at a glance
Computed from airline schedules and the fares we track for this route. Refreshed several times a day.
- Distance
- 9,924 milesgreat-circle
- Typical flight time
- 20hif flown nonstop
- Nonstop airlines
- None (connecting only)
- Nonstop flights per day
- 0connections available
- Cheapest month
- January 2027over the next six months
- Best day to fly
- Tuesday17% less than Sunday
- Time difference
- 13h aheadSingapore vs Houston
Houston to Singapore
Round trips from $578
Per traveler, taxes and fees included. Lowest fare we found departs Tue, Jan 19.
Cheapest month: January 2027
See fares on these datesLock any fare free — pay only when you accept your last-minute deal
Or ask an agent on WhatsAppHouston to Singapore fares by month
Lowest round-trip economy fare per traveler in each of the next six months, taxes and fees included. Select a month to search that date.
Airlines flying Houston to Singapore
No nonstop service: 20 airlines offer one-stop itineraries.
- ACAir CanadaStar AllianceConnecting via YVR, YYC · first checked bag from $35
- AIAir IndiaStar AllianceConnecting via DEL, BOM · first checked bag included
- ASAlaska AirlinesoneworldConnecting via SEA, ANC · first checked bag from $35
- NHANA All Nippon AirwaysStar AllianceConnecting via HND, NRT · first checked bag included
- OZAsiana AirlinesStar AllianceConnecting via ICN · first checked bag included
- CIChina AirlinesSkyTeamConnecting via TPE · first checked bag included
- BREVA AirStar AllianceConnecting via TPE · first checked bag included
- FIIcelandairConnecting via KEF · first checked bag from $70
- JLJapan AirlinesoneworldConnecting via HND, NRT, KIX · first checked bag included
- KLKLM Royal Dutch AirlinesSkyTeamConnecting via AMS · first checked bag from $75
- LHLufthansaStar AllianceConnecting via MUC · first checked bag from $75
- NONorse Atlantic AirwaysLow-costConnecting via LGW, OSL · first checked bag from $80
- PRPhilippine AirlinesConnecting via MNL · first checked bag included
- QFQantasoneworldConnecting via SYD · first checked bag included
- SKSAS Scandinavian AirlinesSkyTeamConnecting via CPH, ARN · first checked bag from $70
- LXSWISSStar AllianceConnecting via ZRH · first checked bag from $75
- TPTAP Air PortugalStar AllianceConnecting via OPO · first checked bag from $70
- TKTurkish AirlinesStar AllianceConnecting via IST · first checked bag from $70
- VSVirgin AtlanticSkyTeamConnecting via MAN · first checked bag from $75
- Y4VolarisLow-costConnecting via TIJ · first checked bag from $45
Connecting options
Hubs where one airline can carry you on both legs, most choices first.
- Tokyo (HND)JLNH2 airlines
- Tokyo (NRT)JLNH2 airlines
- Taipei (TPE)BRCI2 airlines
- Seattle (SEA)AS1 airline
- Anchorage (ANC)AS1 airline
Which airport should I use?
Houston has 2 airports. Fares can differ by $50 to $150 round trip between them, so check the alternatives before you book.
Other departure airports near Houston
Tips for this route
- There is no scheduled nonstop between IAH and SIN. Every itinerary connects, most often through HND, NRT or TPE, so sort results by total travel time rather than price alone.
- January 2027 is the cheapest month to fly over the next six months, with round trips from $578; September 2026 is the most expensive at $773 and up, a difference of $195 per traveler.
- Departing on a Tuesday averages 17% less than a Sunday on this route. If your dates are flexible, shift the outbound by a day or two and check the calendar view before you book.
- Book 2 to 5 months ahead for the best fares; long-haul seats sell out earliest for summer and holiday travel.
- Singapore is 13 hours ahead of Houston. Expect to lose 13 hours on the clock heading east, so an overnight or late-afternoon departure tends to arrive at a more usable hour.
Ready to compare live fares?
See every airline on IAH–SIN side by side with bags and seat rules spelled out.
Search Houston to SingaporeHouston to Singapore: common questions
How long is the flight from Houston to Singapore?
There are no nonstop flights, so the trip from Houston (IAH) to Singapore (SIN) takes 20h of flying plus a layover, usually 23h or more door to door across 9,924 miles.
Which airlines fly nonstop from IAH to SIN?
No airline currently flies nonstop between Houston (IAH) and Singapore (SIN). The most common connections are through HND, NRT and TPE.
What is the cheapest month to fly from Houston to Singapore?
Over the next six months, January 2027 has the lowest round-trip fares from Houston (IAH) to Singapore (SIN), starting at $578 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.
How far in advance should I book Houston to Singapore flights?
Book 2 to 5 months ahead for the best fares; long-haul seats sell out earliest for summer and holiday travel. Air1 Tickets includes free cancellation within 24 hours of booking on every fare, so you can lock in a good price and keep looking.
What is the time difference between Houston and Singapore?
Singapore is 13 hours ahead of Houston. IAH is on America/Chicago time and SIN on Asia/Singapore time. Departure and arrival times in search results are always shown in local time at each airport.
Related routes
Other popular city pairs from the same departure city and to the same destination, with the lowest round-trip fares we found.