Cheap Flights from San Diego (SANA) to Houston George Bush Intercntl. (IAH)

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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. Airport? If you want to travel next month, return fares start from £154. 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 September.

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 found£51
Cheapest month to flySeptember
Average flight time3 hrs, 20 mins
Most popular airlineUnited
Average flights per week106

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 £128. 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 20 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 May 2026, there are 53 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 July.
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 Tuesday, 28 July 2026.
Yes – the average flight time is 3 hours and 20 minutes.
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.

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

  • San Diego's main airport is San Diego International Airport (SAN). Check out your options for leaving from this base when booking your flights from San Diego to Houston George Bush Intercontinental Airport (IAH).

  • The average length of a direct San Diego to Houston George Bush Intercontinental Airport flight is 3 hours 10 minutes.

  • Houston is two hours ahead of San Diego. Houston George Bush Intercontinental Airport is located in Houston, which runs on the UTC-6 timezone.

  • With 34 direct weekly flights between the two airports, San Diego International Airport (SAN) to Houston George Bush Intercontinental Airport (IAH) is the most popular route. United Airlines operates the earliest flight at 6:15am. If you're eager to make the most of your day before jetting off, the last flight from SAN to IAH is with United Airlines at 6:41pm.

  • Leave plenty of time to get on your flight from San Diego to IAH. As a general rule, arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Travelling during a peak month like July? Popular periods (like spring break and Thanksgiving) can add another hour at check-in and security. Play things extra safe and arrive up to four hours before an international flight and two hours before domestic departures.

Airports in San Diego

San Diego International Airport (SAN)

  • You can take a direct flight from San Diego to Houston George Bush Intercontinental Airport (IAH) leaving from San Diego International Airport (SAN).

  • United Airlines is a popular airline that offers direct flights from San Diego to Houston George Bush Intercontinental Airport leaving from SAN.

  • Most travellers prefer to book seats with United from SAN to IAH.

  • United takes the lead in punctuality. A reliable 80.93% of its departures on this route complete the journey on schedule.

  • SAN is around 5 kms (3 miles) from central San Diego. If you're ride-sharing, catching a taxi or driving from the centre, it'll take you 15 minutes or so to get there, depending on the traffic. If you're using public transport, expect the travel time to be around 25 minutes.

  • Searching for a comfortable hotel close to San Diego International Airport? If you're catching an early flight from San Diego to Houston George Bush Intercontinental Airport, these stays will put you moments from check-in:

  • When it comes to San Diego International Airport's on-time performance, data shows 74% of flights arrive within the scheduled time frame.

  • You'll find SAN at N Harbour Dr.

McClellan-Palomar Airport (CLD)

  • CLD is roughly 48 kms (30 miles) from central San Diego. Plan ahead to find the fastest way to arrive at the terminal.

  • Want to enjoy an extra night away before boarding your San Diego to IAH flight? Kick back in a hotel near McClellan-Palomar Airport before your holiday officially starts. These stays are expecting you:

  • The majority of flights that leave McClellan-Palomar Airport arrive at their destination on schedule. It boasts an on-time performance rate of 88%.

About Houston George Bush Intercontinental Airport (IAH)

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

  • From Houston George Bush Intercontinental Airport, central Houston is around 40 kms (25 miles) away. It takes about 30 minutes to get to the city centre by car.

  • When travelling on public transport, expect a journey of roughly 1 hour 10 minutes.

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

  • The lowest price we've found for a one-way ticket from San Diego to Houston George Bush Intercontinental Airport is £51. For a return flight on this route, the best price is £128. Depending on when and how early you book, these fares can change.

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

  • The 'Whole month' search tool will show you the cheapest San Diego to Houston George Bush Intercontinental Airport tickets throughout the entire month. It's a great way to snap up a bargain if your dates are flexible.

  • Finding a cheap plane ticket from San Diego to IAH couldn't be easier with Price Alerts. All you need to do is set up one of these automatic alerts and we'll let you know when prices go down.

  • Find the best deal on a flight from San Diego to Houston George Bush Intercontinental Airport with the help of the filters. Pick your preferred arrival and departure times, airlines and number of stops. You can also sort your results by 'Cheapest,' 'Fastest' or 'Best.'

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

  • Think about the kind of holiday you want when deciding your trip dates. January is the quietest month to visit Houston. July is when most people book flights from San Diego to Houston George Bush Intercontinental Airport (IAH), which may be ideal if you'd rather travel when it's busy.

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

  • January sees temperatures of between 5ºC and 19ºC. Search for cheap tickets from San Diego to Houston George Bush Intercontinental Airport around that time if you like travelling in cooler conditions.

More about Houston

Explore more of the United States

  • Houston is easy to fall in love with, but there are so many other corners of the United States you'll want to see. Around 241 kms (150 miles) west of Houston, a visit to Austin will keep you on the go. Start with leading sights like Texas State Capitol, Austin Museum of Art, Downtown and 360 Bridge.

  • Corpus Christi is another standout destination in the United States and is around 306 kms (190 miles) southwest of Houston. No trip is complete without visiting USS LEXINGTON, Texas State Aquarium and Bayfront Park.

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