Cheap flights from Houston to San Francisco
Cheapest current fares: $113 in June 2026, 2,629 km direct flight in ~3h 6m.
Cheapest month-by-month fares
Lowest available fare per calendar month from Houston (IAH) to San Francisco (SFO). Refreshed daily.
Houston (IAH) → San Francisco (SFO)
- June 2026 $113
- July 2026 $115
Frequently asked questions
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What is the cheapest month to fly from Houston to San Francisco?
Based on current 6-month forward fare data, June 2026 is the cheapest month to fly from Houston (IAH) to San Francisco (SFO), with fares starting from $113.
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What is the lowest current fare from IAH to SFO?
The lowest currently-listed fare from Houston (IAH) to San Francisco (SFO) is $113 on 2026-06-12.
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How long is the flight from Houston to San Francisco?
Direct flights from IAH to SFO cover approximately 2,629 km (1,634 miles), with an estimated flight time of 3h 6m. Operating airlines: UA.
Related guides for this route
Sibling pages — full route detail, airport overviews, visa context, per-airline routes.