Cheap Flights from San Diego to Houston George Bush Intercntl.

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Flight deals from San Diego to Houston George Bush Intercntl.

Looking for a cheap last-minute deal or the best return flight from San Diego to Houston George Bush Intercntl.? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from San Diego to Houston George Bush Intercntl.

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Diego to Houston George Bush Intercntl. flights are currently cheapest in May.

Direct flights from San Diego to Houston George Bush Intercntl.

San Diego to Houston George Bush Intercntl.: Alternative routes

Compare routes from San Diego to Houston below. You may find an airport to fly into that's cheaper, faster, or easier than Houston George Bush Intercntl..

San Diego to Houston: Flight information

The things to know before you go.
Cheapest flight foundR 783
Cheapest month to flyMay
Average flight time3 hrs, 16 mins
Most popular airlineUnited
Average flights per week108

Finding cheap flights from San Diego to Houston George Bush Intercntl.: Frequently asked questions

The best price we found for a return flight from San Diego to Houston George Bush Intercntl. is R 1,935. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 16 minutes is the average flight time from San Diego to Houston George Bush Intercntl..
United, Lufthansa and Emirates fly direct from San Diego to Houston George Bush Intercntl..
As of February 2026, there are 54 flights per week flying from San Diego to Houston George Bush Intercntl..
The cheapest month to fly from San Diego to Houston George Bush Intercntl. is usually April.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from San Diego to Houston George Bush Intercntl. Airport on Wednesday, 29 April 2026.
Yes – the average flight time is 3 hours and 16 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Houston George Bush Intercntl. but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Houston is around 40 days in advance, so don’t leave your flight to the last minute.

Flying from San Diego to George Bush Intercontinental Airport (IAH): What you need to know

  • Begin your trip planning by checking out the best place to catch your flight from San Diego to George Bush Intercontinental Airport (IAH). Explore the options for leaving from San Diego International Airport (SAN) or McClellan-Palomar Airport (CLD), two of the city's main airports.

  • Around 3 hours 15 minutes is how long you can expect to be in the air on a direct San Diego to George Bush Intercontinental Airport flight.

  • The timezone in Houston is UTC-5, which is two hours ahead of San Diego. George Bush Intercontinental Airport is located in Houston.

  • The busiest route is from San Diego International Airport (SAN) to George Bush Intercontinental Airport (IAH), with 34 direct services every week. If you're eager to be on your way, the earliest flight from SAN to IAH is the 6:15am United Airlines option. If you need some extra time before takeoff, the last departure is at 6:41pm with United Airlines.

  • Your flight from San Diego to IAH won't wait if you're late, so show up at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • If you're heading away during a bank holiday or other peak period, give yourself extra time. Get there two hours before domestic flights and up to four hours before international departures. Lines at security and check-in will be longer.

Airports in San Diego

San Diego International Airport (SAN)

  • You can book a direct flight from San Diego to George Bush Intercontinental Airport (IAH) out of San Diego International Airport (SAN).

  • When departing from SAN, you can take a direct flight from San Diego to George Bush Intercontinental Airport with United Airlines.

  • United Airlines is the most frequently chosen airline for flights from SAN to IAH.

  • The carrier with the most reliable on-time performance on this route is United Airlines. Its services land as planned 78.17% of the time.

  • SAN is around 5 kilometres from central San Diego. If you're driving, ride-sharing or catching a cab from the centre, it'll take 10 minutes or so to get there, depending on traffic conditions. If you're taking public transport, expect the journey time to be around 20 minutes.

  • Searching for a convenient hotel close to San Diego International Airport? If you've booked an early flight from San Diego to George Bush Intercontinental Airport, these accommodation options will put you a quick hop from check-in:

  • Of the departures from San Diego International Airport, 71.38% touch down on time at their destination.

  • You'll find SAN at N Harbour Dr.

McClellan-Palomar Airport (CLD)

  • On public transport, you can travel from central San Diego to CLD in about 2 hours 15 minutes. The terminal is roughly 56 kilometres away, and getting there by car takes approximately 40 minutes.

  • Got an early start? You might like to check in to one of these hotels near McClellan-Palomar Airport the day before your San Diego to IAH flight:

About George Bush Intercontinental Airport (IAH)

Getting from George Bush Intercontinental Airport (IAH) to central Houston

  • Central Houston is about 21 kilometres from George Bush Intercontinental Airport. Journey times by car hire or cab will vary depending on time of day and traffic conditions, so do some research ahead of time.

  • Travelling by public transport typically takes 50 minutes.

How to find the cheapest flights from San Diego to George Bush Intercontinental Airport (IAH)

  • The cheapest price we've found for a one-way ticket from San Diego to George Bush Intercontinental Airport is R 783. For a return flight on this route, the best price is R 1,935. Depending on the availability when you book, these fares may change.

  • Don't leave things to the last moment. You're more likely to find cheap flights from San Diego to IAH if you book early. Airlines often offer some fantastic early bird rates.

  • If you're flexible with your trip dates, use the 'Whole month' search tool. It'll show you the cheapest price in every month when searching for your San Diego to George Bush Intercontinental Airport ticket.

  • Snapping up a cheap plane ticket from San Diego to IAH is easy with Price Alerts. All you need to do is create one of these automatic alerts and we'll let you know when a lower fare pops up.

  • Tailor your trip using filters. Select your departure and arrival times, total journey duration and airlines. You can also sort the results by 'Fastest,' 'Best' or 'Cheapest' flights from San Diego to George Bush Intercontinental Airport.

The best time to fly from San Diego to George Bush Intercontinental Airport (IAH)

  • It's time to figure out your travel dates for your flight from San Diego to George Bush Intercontinental Airport (IAH). July is the busiest month to travel to Houston. If you prefer a quieter vibe, think about going in February.

  • The warmest month in Houston is August, with temperatures ranging between 24ºC (75ºF) and 40ºC (104ºF). Lock in your San Diego to IAH plane ticket then if you enjoy this type of weather.

  • If you want to travel in cooler conditions, look for a cheap ticket from San Diego to George Bush Intercontinental Airport in January when temperatures are between 5ºC (41ºF) and 19ºC (66ºF).

More about Houston

  • Once you've booked your flight from San Diego to George Bush Intercontinental Airport, choose a hotel that puts you where you want to be. Make one of these options your base for exploring Houston:

  • There are so many things to discover in this city, it can be tricky to know where to start. The Museum of Fine Arts, Houston, Beck Building, The Houston Museum of Natural Science and Holocaust Museum Houston are major attractions which should feature on every Houston itinerary.

Explore more of the United States

  • Austin is just one of the many cities in the United States waiting to be explored once you've seen the sights of Houston. Around 241 kilometres away to the west, its top attractions include Texas State Capitol, Central Park and Austin Museum of Art, Downtown.

  • Around 306 kilometres south-west of Houston, Corpus Christi is another favourite stop in the United States. Get a taste of what this destination has to offer at Texas State Aquarium, Bayfront Park and Corpus Christi Cathedral.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.