Cheap flights from Portsmouth to Houston from £490
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/4. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Portsmouth to Houston
Keep the following information in mind while searching for Portsmouth to Houston flight deals. Data was last updated 1 April 2025.
Find flight deals from Portsmouth to Houston
Cheapest flights from Portsmouth to HoustonExplore the most affordable flight options available from Portsmouth to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 April 2025.
Explore the most affordable flight options available from Portsmouth to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 April 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Portsmouth to Houston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 1 April 2025.
Use the filters below to find and compare flights from Portsmouth to Houston that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
SouthamptonHouston
SOU - IAH
SOUIAH
Southampton Eastleigh
Thu 24/4
17:35-13:15
1 stop25h 40m
Houston George Bush Intcntl
Mon 28/4
15:30-17:00
1 stop19h 30m
SouthamptonHouston
SOU - HOU
SOUHOU
Southampton Eastleigh
Thu 24/4
09:20-23:08
2 stops19h 48m
Houston Hobby
Mon 28/4
06:00-08:50
2 stops20h 50m
SouthamptonHouston
SOU - IAH
SOUIAH
Southampton Eastleigh
Thu 24/7
17:35-13:15
1 stop25h 40m
Houston George Bush Intcntl
Sun 27/7
15:30-17:00
1 stop19h 30m
SouthamptonHouston
SOU - IAH
SOUIAH
Southampton Eastleigh
Fri 18/4
16:25-13:05
3 stops50h 40m
SouthamptonHouston
SOU - IAH
SOUIAH
Southampton Eastleigh
Fri 18/4
09:20-13:15
1 stop33h 55m
Best time to book a flight from Portsmouth to Houston
Have a flexible travel schedule? Discover the best time to fly to Houston from Portsmouth with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Portsmouth to Houston
What is the cheapest month to book a flight from Portsmouth to Houston?
Currently, January is the cheapest month in which you can book a flight from Portsmouth to Houston (average of £765). Flying from Portsmouth to Houston in July is currently the most expensive (average of £1,114). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from P0R to HOU?
Find hourly flight availability from Portsmouth to Houston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 April 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portsmouth to Houston as you normally would.
Rainfall in Houston by month
Plan your trip to Houston by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Houston ranges from 81.0 - 150.0 inches per month. June is typically the wettest month, when rainfall can reach 150.0 mm. February is typically the driest time to visit Houston when rainfall is around 81.0 mm.
Temperature in Houston by month
Plan your trip to Houston by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Houston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 29.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 12.0 C).
Reviews of airlines servicing Houston
Get insights into the airlines that provide service to Houston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Houston. Reviews last updated 1 April 2025.
Boarding
Overall
Comfort
Food
Entertainment
Crew
Reviews
Aaron,Oct 2024
TUS - LAX
Boarding
Overall
Comfort
Food
Entertainment
Crew
Reviews
Aaron,Oct 2024
TUS - LAX
Boarding
Overall
Comfort
Food
Entertainment
Crew
Reviews
Aaron,Oct 2024
TUS - LAX
Related info for your journey
Find useful and relevant information for your journey from Portsmouth to Houston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Portsmouth to Houston
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from Portsmouth to Houston
Discover the top 10 airlines that operate flights from Portsmouth to Houston. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 1 April 2025.
Fly with Cheapflights
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How does Cheapflights help users find flights from Portsmouth to Houston?
Deals for Portsmouth to Houston flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Houston?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Portsmouth to Houston.
Can Cheapflights find flights from Portsmouth to Houston with no change fees?
Users can book flights with no change fees policies with our dedicated filters. Book flights from Portsmouth to Houston flexibly with Cheapflights today.
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