Question 1

How long is the flight from Portsmouth to Houston?

Accepted Answer

A quick flight from Portsmouth to Houston can take about 25h 40m. Delta provides one of the quickest options available for as low as £749. Airlines will cover a distance of 4799 mi. This flight may include one or multiple stops.

Question 2

What is the cheapest month to book a flight from Portsmouth to Houston?

Accepted Answer

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.

Question 3

E

Accepted Answer

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.

Question 4

E

Accepted Answer

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).

Question 5

What are the most popular airlines that fly from Portsmouth to Houston?

Accepted Answer

The most popular airlines flying from Portsmouth to Houston are American Airlines, Air Canada and Finnair. Something to consider prior to booking your flight.

Question 6

How far in advance should I book a flight from Portsmouth to Houston?

Accepted Answer

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 38 days in advance, which can save you up to 73% on flights from Portsmouth to Houston compared to booking the week you need them. Waiting 38 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £639. For sooner than that we have options available in the next 3 days from £960.

Question 7

What is the cheapest month to fly from Portsmouth to Houston?

Accepted Answer

January is one of the best times of the year to fly to Houston from Portsmouth. Prices for January average £718 per person but you can even find prices for as low as £506. The most expensive prices can be found in the month of July. Opting for a January flight can save you 29% on your journey compared to booking in July

Question 8

What is the cheapest time of day to fly from P0R to HOU?

Accepted Answer

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.

Question 9

Can I find deals for flights from Portsmouth to Houston that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Portsmouth to Houston flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 10

How can I find direct flights from Portsmouth to Houston?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portsmouth to Houston.

Question 11

Can I find deals for business class flights from Portsmouth to Houston?

Accepted Answer

Yes. Cheapflights offers flight deals from Portsmouth to Houston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 12

How does Cheapflights help users find flights from Portsmouth to Houston?

Accepted Answer

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.

Question 13

Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Houston?

Accepted Answer

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.

Question 14

Can Cheapflights find flights from Portsmouth to Houston with no change fees?

Accepted Answer

Users can book flights with no change fees policies with our dedicated filters. Book flights from Portsmouth to Houston flexibly with Cheapflights today.

Question 15

Can Cheapflights notify me if prices for flights from Portsmouth to Houston become cheaper?

Accepted Answer

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

Round-trip from	£748
Popular in	July
Cheapest in	January
Average price	£644

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest£317	Average£709	FlexibilityNo cancel fee	On-time75%	Search KLM flights
WestJet	Cheapest£383	Average£557	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Virgin Atlantic	Cheapest£383	Average£747	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Icelandair	Cheapest£446	Average£646	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
JetBlue	Cheapest£456	Average£576	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Scandinavian Airlines	Cheapest£481	Average£646	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Lufthansa	Cheapest£494	Average£749	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Finnair	Cheapest£497	Average£619	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Austrian Airlines	Cheapest£514	Average£811	FlexibilityNo cancel fee	On-time78%	Search Austrian Airlines flights
Iberia	Cheapest£525	Average£774	FlexibilityNo cancel fee	On-time77%	Search Iberia flights

Cheap flights from Portsmouth to Houston from £748

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/9. 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 4 September 2025.

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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 4 September 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 4 September 2025.

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Best time to book a flight from Portsmouth to Houston

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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?

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 4 September 2025.

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.

How long is the flight from Portsmouth to Houston?

Can I find deals for flights from Portsmouth to Houston that include hotel bookings?

How can I find direct flights from Portsmouth to Houston?

Can I find deals for business class flights from Portsmouth to Houston?

What is the cheapest month to book a flight from Portsmouth to Houston?

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Alternative routes for Portsmouth to Houston

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Top 10 airlines flying from Portsmouth to Houston

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How does Cheapflights help users find flights from Portsmouth to Houston?

Why should you use Cheapflights to find cheap flight tickets from Portsmouth to Houston?

Can Cheapflights find flights from Portsmouth to Houston with no change fees?

Can Cheapflights notify me if prices for flights from Portsmouth to Houston become cheaper?

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Cheapest flights from Portsmouth to Houston
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 4 September 2025.