Frontier AirlinesDepart08:57
Tue, Dec 8SAN → IAH
4h 44m · 1 stop
$51one way, per person
View deal
- Cheapest fare
- $51
- Cheapest month
- December
- Direct flights
- Not recently
- Quickest trip
- 4h 44m
Frontier Airlines · Tue, Dec 8
from $51
Usually 1+ stop
2,090 km
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Cheapest month to fly from San Diego to Houston
Lowest one-way fare per person in each month. Choose a month to see every date.
Cheapest dates in December 2026
The lowest fares we've seen for each day, cheapest first.
Frontier AirlinesFrontier AirlinesDepart08:57
Wed, Dec 9SAN → IAH
4h 49m · 1 stop
$55one way, per person
View deal
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About flights from San Diego to Houston
San Diego (SAN) and Houston (HOU) are about 2,090 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 4h 44m. Over the next few months, one-way fares start from $51, and December 2026 is currently the cheapest month to fly.
These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.
Frequently asked questions
How much is a flight from San Diego to Houston?
The cheapest one-way fare we've seen recently is $51 with Frontier Airlines, departing Tuesday, December 8, 2026. Over the coming months, the lowest fare in each month ranges from $51 to $163.
What is the cheapest month to fly from San Diego to Houston?
December 2026 currently has the lowest fares, from $51 one way.
Are there direct flights from San Diego to Houston?
We haven't seen direct fares recently, so most journeys include at least one stop.
How long is the flight from San Diego to Houston?
The quickest journey we've seen takes about 4h 44m. San Diego and Houston are around 2,090 km apart.
Which airlines fly from San Diego to Houston?
Recent fares on this route were with Alaska Airlines and Frontier Airlines.
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