Cheapest€157.67
- Southwest Airlines SA928606:233h 29m11:52San Diego SANHouston IAH
Door to door 6h 39mCO2 530.9 kgChanges 0Fixed, no changes
San Diego to Houston flight
Flights from San Diego to Houston start at €157.67 and take 6h 18m at their fastest.
Check dates and fares
Fares and seats move by the day. Price San Diego to Houston on the date you actually want, rather than on the date this page was built.
The Flights from San Diego to Houston starts at €157.67 and takes 6h 18m door to door, run by 2 operators over 2,158 km, with around 12 departures a day. Fares bottom out about 60 days before departure.
- 6h 18mDoor to door
- 3h 8mMoving
- €208.41 to €409.01From
- 06:06 to 18:45First and last departure
- 12Per day
- 530.9 kgCO2
First and last are taken from the services we sell on October 6, 2026. The return direction keeps its own timetable and is not these times reversed.
€208.41 to €409.01 for one passenger across the 14 departure dates priced here. The low end is one day, not every day. Worked out from this corridor rather than held for anybody. The operator sets the price on the day.
Fares by date
What this journey usually costs, by departure date. It shows which days run dearer.
Typical fares
- about €384.23Fri18
- about €409.01Sat19
- about €311.07Sun20
- about €257.97Mon21
- about €262.10Tue22
- about €272.13Wed23
- about €272.13Thu24
- about €255.61Fri25
- about €268.59Sat26
- about €279.80Sun27
- about €208.41Mon28
- about €213.13Tue29
- about €223.16Wed30
- about €216.08Thu1
Based on what this route has cost recently. The operator sets the price on the day, and the live fare is confirmed when you book.
The cheapest and the fastest on October 6, 2026
Fastest€199.56
- United Airlines UA459218:453h 8m23:53San Diego SANHouston IAH
Door to door 6h 18mCO2 530.9 kgChanges 0Fixed, no changes
Lowest CO2€216.08
- Southwest Airlines SA267007:301h 13m08:43San Diego SANTucson TUS
- United Airlines UA543409:342h 29m14:03Tucson TUSHouston IAH
Changes at Tucson, with 51 minutes between services and a walk of about 5 minutes.
Door to door 7h 43mCO2 530.6 kgChanges 1Fixed, no changes
Airlines
| Operator | From | Fastest |
|---|---|---|
| United Airlines | €166.52 | 6h 18m |
 Southwest Airlines | €157.67 | 6h 17m |
The flight gets you into Houston. It does not get you a bed, and neither do we.
A room in Houston for the night the flight gets in
Sort by distance from Houston station and you can see which places are ten minutes on foot and which are not.
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Partner links. We do not sell accommodation. We earn a commission when a booking completes, and it never changes what you pay.
When to book San Diego to Houston
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €175.9690 days
- €137.6160 days
- €160.0345 days
- €178.9130 days
- €222.5721 days
- €216.0814 days
- €272.137 days
- €311.073 days
- €384.231 days
- Cheapest lead time
- Fares bottom out around 60 days ahead, at €137.61.
- How much it moves
- The gap between the cheapest and most expensive lead time is 179 percent. The most expensive point is €384.23, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 60 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €279.80Sun
- €208.41Mon
- €213.13Tue
- €223.16Wed
- €222.57Thu
- €255.61Fri
- €268.59Sat
Where you leave from and where you arrive
San Diego
Air
- SAN
Houston
Air
- IAH
- HOU
What the journey looks like
- Direct or connecting
- 67% of the services we sell on this corridor run through without a change. The remaining 33% involve one connection.
- How far it really runs
- The route covers 2,158 km against 2,095 km in a straight line, a detour of 3 percent. Track and road geometry account for the difference.
- Where the change is
- Connections are made at El Paso, Tucson, Phoenix, Austin. The gap between arriving and leaving is 48 minutes, of which about 5 is walking.
- If the connection is missed
- The tightest connection we sell here has a 19 percent chance of not being made on the timetable alone. Part of this journey is a self transfer between separate tickets, so leave more time than the minimum and expect to check in again.
- First and last departure
- The first service of the day leaves San Diego at 06:06 and the last at 18:45, across 12 departures The return direction keeps its own timetable, so the times back are not these times reversed.
Questions about San Diego to Houston
The questions people actually ask about this trip, answered from the same prices and times the page above is built on rather than written once and left to go stale.
How long does the Flight from San Diego to Houston take?
The Flight from San Diego to Houston takes 6h 18m door to door, of which 3h 8m is spent moving. The route runs 2,158 km. The difference between the two times is reaching the terminal and leaving it at the far end, which every time on this page includes.
How much does the Flight from San Diego to Houston cost?
The Flight from San Diego to Houston starts at €157.67 for one passenger, as of September 17, 2026. A typical fare is €204.28. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.
Who runs the Flight from San Diego to Houston?
2 operators run the Flight from San Diego to Houston: United Airlines, Southwest Airlines. Between them they file around 12 departures a day. The operator table on this page compares them on fare, journey time, cruising speed, fare conditions and what is provided on board.
Which terminal does the Flight from San Diego to Houston use?
The Flight from San Diego to Houston leaves from San Diego SAN and arrives at Houston IAH. Allow about 3h 10m for reaching the departure terminal and leaving the arrival one. That time is already inside every door to door figure quoted on this page.
When should I book the Flight from San Diego to Houston?
Fares for the Flight from San Diego to Houston bottom out around 60 days ahead, at €137.61. The gap between the cheapest and most expensive lead time across the window is 179 percent, measured on September 17, 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from San Diego to Houston produce?
The Flight from San Diego to Houston produces about 530.9 kg of CO2 per passenger over 2158 km, which works out at roughly 246 grams per passenger kilometer. That figure is for the whole journey and for one traveler, not for the vehicle.
Where these numbers come from
Places, coordinates, operators, which operator serves which pair, and every distance on this page are real and come from open data. Where a corridor has a filed timetable the departure times are real too, and ferry fares are the prices the operators publish themselves.
Derived from service area No carrier record names this exact pair. The operators listed publish a service area covering both places at a distance their mode plausibly carries people, which is evidence that the corridor is served and not evidence of a specific service. Pages state which, because presenting the two as the same thing would be dishonest.
Where no operator publishes a fare for a corridor, the price here is our own estimate, worked out from the real distance and the real operator through a fare curve that follows lead time, day of the week and season. It tells you roughly what the journey costs. It is not a seat anyone has agreed to sell, and the payment step will not take it.
Defined in full at Door to door, Fares, The booking window, Carbon
- On this page
- Every figure above was computed for San Diego to Houston on September 17, 2026: 2158 km of route against 2095 km in a straight line, 12 services a day, 2 operators a cheapest fare of €157.67, and 6h 18m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
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