Domestic route
Cheap flights from San Francisco to Houston
San Francisco International Airport (SFO) to George Bush Intercontinental Airport (IAH). 1,633 miles, 3h 35m nonstop.
SFO to IAH at a glance
Computed from airline schedules and the fares we track for this route. Refreshed several times a day.
- Distance
- 1,633 milesgreat-circle
- Typical flight time
- 3h 35mnonstop, gate to gate
- Nonstop airlines
- DLUAWNAS5 airlinesDelta, United, Southwest
- Nonstop flights per day
- 25all airlines combined
- Cheapest month
- January 2027over the next six months
- Best day to fly
- Tuesday18% less than Friday
- Time difference
- 2h aheadHouston vs San Francisco
San Francisco to Houston
Round trips from $112
Per traveler, taxes and fees included. Lowest fare we found departs Wed, Jan 6.
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 WhatsAppSan Francisco to Houston 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 San Francisco to Houston
5 airlines fly nonstop with 25 departures a day combined, plus 3 more with one stop.
- UAUnited AirlinesStar AllianceNonstop · 11 flights a day · first checked bag from $40
- ASAlaska AirlinesoneworldNonstop · 7 flights a day · first checked bag from $35
- NKSpirit AirlinesLow-costNonstop · 3 flights a day · first checked bag from $55
- DLDelta Air LinesSkyTeamNonstop · 2 flights a day · first checked bag from $35
- WNSouthwest AirlinesLow-costNonstop · 2 flights a day · first checked bag from $35
- AAAmerican AirlinesoneworldConnecting via DFW, PHX, LAX · first checked bag from $40
- F9Frontier AirlinesLow-costConnecting via DEN, LAS, PHX · first checked bag from $55
- B6JetBlueConnecting via LAX · first checked bag from $40
Connecting options
Hubs where one airline can carry you on both legs, most choices first.
- Phoenix (PHX)AAF92 airlines
- Los Angeles (LAX)AAB62 airlines
- Dallas (DFW)AA1 airline
- Denver (DEN)F91 airline
- Las Vegas (LAS)F91 airline
Which airport should I use?
San Francisco has 3 airports and 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 San Francisco
Other arrival airports near Houston
Tips for this route
- Delta, United, Southwest and Alaska all fly SFO to IAH nonstop, so compare the total with bags before picking the lowest base fare: the difference between a basic and a standard economy ticket is often less than one checked bag each way.
- January 2027 is the cheapest month to fly over the next six months, with round trips from $112; September 2026 is the most expensive at $146 and up, a difference of $34 per traveler.
- Departing on a Tuesday averages 18% less than a Friday on this route. If your dates are flexible, shift the outbound by a day or two and check the calendar view before you book.
- Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks.
- Houston is 2 hours ahead of San Francisco. Expect to lose 2 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 SFO–IAH side by side with bags and seat rules spelled out.
Search San Francisco to HoustonSan Francisco to Houston: common questions
How long is the flight from San Francisco to Houston?
A nonstop flight from San Francisco (SFO) to Houston (IAH) takes about 3h 35m gate to gate, covering 1,633 miles. Connecting itineraries add the layover, typically 1 to 3 hours more in total.
Which airlines fly nonstop from SFO to IAH?
Delta Air Lines, United Airlines, Southwest Airlines, Alaska Airlines and Spirit Airlines operate nonstop flights from San Francisco (SFO) to Houston (IAH), with 25 nonstop departures a day between them. One-stop options connect through PHX, LAX and DFW.
What is the cheapest month to fly from San Francisco to Houston?
Over the next six months, January 2027 has the lowest round-trip fares from San Francisco (SFO) to Houston (IAH), starting at $112 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.
How far in advance should I book San Francisco to Houston flights?
Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks. 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 San Francisco and Houston?
Houston is 2 hours ahead of San Francisco. SFO is on America/Los Angeles time and IAH on America/Chicago 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.
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