Cheap flights from San Diego to Trenton
Cheapest current fares: $393 in May 2026 on connecting flights.
Cheapest month-by-month fares
Lowest available fare per calendar month from San Diego (SAN) to Trenton (TTN). Refreshed daily.
San Diego (SAN) → Trenton (TTN)
- May 2026 $393
Frequently asked questions
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What is the cheapest month to fly from San Diego to Trenton?
Based on current 6-month forward fare data, May 2026 is the cheapest month to fly from San Diego (SAN) to Trenton (TTN), with fares starting from $393.
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What is the lowest current fare from SAN to TTN?
The lowest currently-listed fare from San Diego (SAN) to Trenton (TTN) is $393 on 2026-05-31.
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Is there a direct flight from San Diego to Trenton?
There is currently no non-stop service from SAN to TTN. Most travellers connect through a hub airport. See our route page for current stopover options.
Related guides for this route
Sibling pages — full route detail, airport overviews, visa context, per-airline routes.