Cheap flights from Houston to San Diego
Cheapest current fares: $169 in June 2026, 2,094 km direct flight in ~2h 28m.
Cheapest month-by-month fares
Lowest available fare per calendar month from Houston (IAH) to San Diego (SAN). Refreshed daily.
Houston (IAH) → San Diego (SAN)
- June 2026 $169
Frequently asked questions
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What is the cheapest month to fly from Houston to San Diego?
Based on current 6-month forward fare data, June 2026 is the cheapest month to fly from Houston (IAH) to San Diego (SAN), with fares starting from $169.
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What is the lowest current fare from IAH to SAN?
The lowest currently-listed fare from Houston (IAH) to San Diego (SAN) is $169 on 2026-06-07.
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How long is the flight from Houston to San Diego?
Direct flights from IAH to SAN 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.