Route guide · 1,310 miles
Cheap Flights from San Diego to Houston
SAN → HOU · Nonstop 3h 10m · Live round-trip fares
Plenty of travelers price out San Diego to Houston every day — here's how to beat the average fare. Nonstops run about 3h 10m, and the calendar matters more than the airline. Aim to book 3–6 weeks ahead, stay flexible on the day of the week, and set a free alert so a price drop never slips past you.
Live fares for SAN → HOU are updating. Use the search below for real-time prices.
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Updated daily
Flight time
3h 10m
Nonstop, typical
Distance
1,310 mi
SAN → HOU
Book ahead
3–6 weeks
Best window, typically
Nonstop airlines
1
Southwest Airlines
Nonstop flights from San Diego to Houston
The fastest way between the two cities is the nonstop: about 3h 10m for the 1,310-mile run from SAN to HOU. Those flights are flown by Southwest Airlines. Prices behave best when you book 3–6 weeks out.
Booking insights: San Diego → Houston
- Distance: 1,310 miles · nonstop flight time: 3h 10m.
- Cheapest upcoming week in the live data starts around Oct 22, with fares from $227.
- Fares tend to bottom out when you book about 3–6 weeks ahead — earlier than that rarely helps, later usually hurts.
- If your dates flex by a day or two, shifting to a midweek departure is the easiest saving there is.
- A free fare alert beats daily checking: we watch this route and ping you when prices drop.
Cheapest month · San Diego → Houston
October 2026
Every date's recent round-trip fare, at a glance.
Fares from
$227
Cheapest: Thu, Oct 22 — $227
Get this fare →Recent fares found for specific dates in October 2026. Blank days had no recent fare in our data — ask our team and we'll check them for you.
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Flying from San Diego to Houston: what you need to know
The flight
At 1,310 miles, this is a long domestic flight — about 3h 10m gate to gate on a nonstop. It deserves a bit of planning: eat before you board or buy early (popular items sell out), and pick your seat with the flight length in mind.
Airlines on this route
Southwest Airlines flies this route nonstop. That matters more than it sounds: the cheapest fare on one carrier is rarely the same product as the cheapest on another. Checked-bag fees, free seat selection and change rules all differ, so compare the full trip cost before you pick a winner. See our airline guides for exactly what each carrier charges — then send an enquiry and we'll confirm the all-in price for your dates.
Leaving from San Diego (SAN)
Plan to be at the airport two hours before a domestic departure — ninety minutes can work at smaller airports outside peak times, but security lines are the one variable you can't control. If you're checking a bag, add time rather than cutting it close. Our San Diego airport guide covers terminals, parking and ground transport so you can plan the trip to the airport, not just the flight.
Arriving in Houston (HOU)
Before you land, know how you're getting from the airport to where you're staying — it's the part of the trip people forget to plan. The Houston airport guide lays out your ground options, from transit and shuttles to rideshares and rental cars. Flying back the other way? Check Houston to San Diego fares — prices on the return direction often move on a different rhythm.
When to book
For a trip of 1,310 miles, booking 3–6 weeks ahead typically lands you in the sweet spot. Leave it to the final two weeks and prices usually climb as the cheapest seats sell out. If your dates are flexible, midweek departures are where the lower fares hide on most domestic routes.
Good to know before you go
- Nonstop time on this route is about 3h 10m — a one-stop itinerary needs to be a lot cheaper to be worth the extra hours.
- Tuesday and Wednesday departures are typically the cheapest days on domestic routes.
- Screenshot your fare before you enquire — prices move, and a saved fare helps our team match or beat it.
- Flexible dates? Search a few days either side — one day can change the fare a lot.
- Morning flights are delayed less often than evening ones — earlier departures have the best on-time record.
San Diego to Houston flight FAQs
How long is the flight from SAN to HOU?
Plan on about 3h 10m in the air for a nonstop from San Diego to Houston — the route runs roughly 1,310 miles. Connecting flights typically add 2–4 hours.
Are there nonstop flights from San Diego to Houston?
Southwest Airlines typically operate nonstop flights from SAN to HOU. Nonstops are usually cheapest when booked 3–6 weeks ahead of departure.
What is the cheapest month to fly from San Diego to Houston?
Fares from San Diego to Houston tend to ease outside the peak summer and holiday rush — the late-summer and early-fall shoulder weeks are usually kinder on the wallet. Set a free Airfare Deal alert and we'll flag the dips for your dates.
How much are last minute flights from SAN to HOU?
Walking up to this route at the last minute is the expensive way to do it — prices inside 7 days of departure climb fast. The 3–6 weeks booking window is where the value sits.
What is a good round-trip deal from San Diego to Houston?
A good deal is anything at or below the recent fares shown above. Set a free Airfare Deal alert and we'll ping you the moment fares drop.
Which airlines fly from San Diego to Houston?
You'll mainly see Southwest Airlines on San Diego to Houston. Checking each against the live fares below is the surest way to find the lowest price for your dates.
How early should I get to San Diego airport for this flight?
Plan on two hours before departure for a domestic flight — ninety minutes can work at smaller airports outside peak times. If you're checking a bag, earlier is better; the bag-drop line, not the flight, is what runs late.
Do the cheapest fares on this route include a checked bag?
Usually not. Basic economy fares on most airlines include a carry-on but charge extra for checked bags, and seat selection can cost more too. Add up the real total before comparing — a slightly higher regular fare sometimes works out cheaper. Our team confirms the full breakdown with you before you pay.
More cheap flights from San Diego
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