Cheap flights from San Diego to Houston
Cheapest current fares: $113 in July 2026, 2,094 km direct flight in ~2h 28m.
Cheapest month-by-month fares
Lowest available fare per calendar month from San Diego (SAN) to Houston (IAH). Refreshed daily.
San Diego (SAN) → Houston (IAH)
- July 2026 $113
- June 2026 $204
- May 2026 $208
Frequently asked questions
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What is the cheapest month to fly from San Diego to Houston?
Based on current 6-month forward fare data, July 2026 is the cheapest month to fly from San Diego (SAN) to Houston (IAH), with fares starting from $113.
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What is the lowest current fare from SAN to IAH?
The lowest currently-listed fare from San Diego (SAN) to Houston (IAH) is $113 on 2026-07-07.
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How long is the flight from San Diego to Houston?
Direct flights from SAN to IAH cover approximately 2,094 km (1,301 miles), with an estimated flight time of 2h 28m. Operating airlines: UA.
Related guides for this route
Sibling pages — full route detail, airport overviews, visa context, per-airline routes.