How long is the flight from Portsmouth to Houston?

A quick flight from Portsmouth to Houston can take about 19h. Virgin Atlantic provides one of the quickest options available for as low as £1,011. Airlines will cover a distance of 4799 mi. This flight may include one or multiple stops.

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.

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).

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

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

How can I find direct flights from Portsmouth to Houston?

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

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

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.

£790+ Cheap Flights from Portsmouth to Houston

Cheap flight deals from Portsmouth to Houston

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 21 August 2026.

Thu 17/920:00 -

2 stops50h 28m

Thu 24/917:18 -

2 stops33h 22m

Deal found 20/8£893

Thu 17/917:20 -

1 stop26h 00m

Thu 24/915:25 -

1 stop19h 25m

Deal found 20/8£1,007

Thu 17/909:05 -

2 stops19h 00m

Thu 24/915:25 -

1 stop19h 25m

Deal found 20/8£1,011

Fri 18/917:20 -

1 stop26h 00m

Mon 28/917:46 -

2 stops17h 04m

Deal found 21/8£1,041

Fri 18/917:20 -

2 stops34h 10m

Tue 29/907:00 -

2 stops27h 50m

Deal found 21/8£1,044

Fri 18/909:05 -

2 stops30h 54m

Mon 28/911:00 -

2 stops15h 35m

Deal found 21/8£1,044

Mon 14/917:20 -

1 stop26h 00m

Tue 29/915:25 -

1 stop11h 20m

Deal found 21/8£1,050

Wed 16/909:15 -

2 stops16h 18m

Tue 29/911:26 -

2 stops15h 19m

Deal found 21/8£1,054

Fri 18/917:20 -

1 stop26h 00m

Sat 26/915:25 -

1 stop11h 20m

Deal found 21/8£1,071

Mon 14/917:20 -

1 stop26h 00m

Sat 26/915:25 -

1 stop11h 20m

Deal found 21/8£1,080

Wed 16/909:15 -

1 stop34h 05m

Sat 26/915:25 -

1 stop19h 25m

Deal found 21/8£1,110

Wed 4/1115:15 -

2 stops34h 40m

Sun 8/1115:50 -

2 stops21h 35m

Deal found 16/8£1,190

Find flight deals from Portsmouth to Houston

Round-trip from	£893
One-way from	£790
Popular in	June
Cheapest in	September
Average price	£889

17/9-24/9
4 total stops
83h 50m total
Portsmouth to Houston

Search Deals

British Airways
14/12
2 total stops
28h 50m total
Portsmouth to Houston

Search Deals

Highest demand for flights based on searches. 10% potential increase in price (£65 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£11 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonHouston

SOU Southampton Eastleigh - IAH Houston George Bush Intcntl

SOUIAH

Southampton Eastleigh

Thu 17/9

17:20-13:20

1 stop26h 00m

Houston George Bush Intcntl

Thu 24/9

15:25-16:50

1 stop19h 25m

£1,007

SouthamptonHouston

SOU Southampton Eastleigh - IAH Houston George Bush Intcntl

SOUIAH

Southampton Eastleigh

Thu 17/9

17:20-13:20

1 stop26h 00m

Houston George Bush Intcntl

Thu 24/9

15:25-16:50

1 stop19h 25m

£1,007

SouthamptonHouston

SOU Southampton Eastleigh - IAH Houston George Bush Intcntl

SOUIAH

Southampton Eastleigh

Thu 17/9

09:05-22:05

2 stops19h 00m

Houston George Bush Intcntl

Thu 24/9

15:25-16:50

1 stop19h 25m

£1,011

SouthamptonHouston

SOU Southampton Eastleigh - HOU Houston Hobby

SOUHOU

Southampton Eastleigh

Fri 18/9

09:05-09:59

2 stops30h 54m

Houston Hobby

Tue 29/9

11:00-08:45

2 stops15h 45m

£1,044

SouthamptonHouston

SOU Southampton Eastleigh - HOU Houston Hobby

SOUHOU

Southampton Eastleigh

Fri 18/9

09:05-09:59

2 stops30h 54m

Houston Hobby

Wed 30/9

11:00-08:35

2 stops15h 35m

£1,044

SouthamptonHouston

SOU Southampton Eastleigh - HOU Houston Hobby

SOUHOU

Southampton Eastleigh

Fri 18/9

09:05-09:59

2 stops30h 54m

Houston Hobby

Mon 28/9

11:00-08:35

2 stops15h 35m

£1,044

SouthamptonHouston

SOU Southampton Eastleigh - IAH Houston George Bush Intcntl

SOUIAH

Southampton Eastleigh

Mon 14/9

17:20-13:20

1 stop26h 00m

Houston George Bush Intcntl

Tue 29/9

15:25-08:45

1 stop11h 20m

£1,050

Fastest return journey

SouthamptonHouston

SOU Southampton Eastleigh - IAH Houston George Bush Intcntl

SOUIAH

Southampton Eastleigh

Wed 16/9

09:15-21:14

2 stops17h 59m

Houston George Bush Intcntl

Tue 29/9

15:25-08:45

1 stop11h 20m

£1,054

SouthamptonHouston

SOU Southampton Eastleigh - IAH Houston George Bush Intcntl

SOUIAH

Southampton Eastleigh

Mon 14/9

17:20-13:20

1 stop26h 00m

Houston George Bush Intcntl

Sat 26/9

15:25-08:45

1 stop11h 20m

£1,080

SouthamptonHouston

SOU Southampton Eastleigh - IAH Houston George Bush Intcntl

SOUIAH

Southampton Eastleigh

Wed 16/9

09:15-13:20

1 stop34h 05m

Houston George Bush Intcntl

Sat 26/9

15:25-16:50

1 stop19h 25m

£1,110

Flights are sorted by cheapest return flights first.

Deals found on 17/8

Showing 1-10 of 20 resultsSorted by cheapest first

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.

SOU-IAH

SOU-HOU

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portsmouth to Houston

P0R-HO1

SOU-IAH

SOU-HOU

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

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.

Related info for your journey

How long is the flight from Portsmouth to Houston?
A quick flight from Portsmouth to Houston can take about 19h. Virgin Atlantic provides one of the quickest options available for as low as £1,011. Airlines will cover a distance of 4799 mi. This flight may include one or multiple stops.
Can I find deals for flights from Portsmouth to Houston that include hotel bookings?
Yes. In addition to deals on Portsmouth to Houston flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Portsmouth to Houston?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portsmouth to Houston.
Can I find deals for business class flights from Portsmouth to Houston?
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.

See more FAQs

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Alternative routes for Portsmouth to Houston

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Top 10 airlines flying from Portsmouth to Houston

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest£39	Average£93	FlexibilityNo cancel fee	On-time62%	Search Frontier flights
WestJet	Cheapest£168	Average£773	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Finnair	Cheapest£309	Average£909	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Iberia	Cheapest£344	Average£1,089	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
Virgin Atlantic	Cheapest£381	Average£711	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Scandinavian Airlines	Cheapest£412	Average£469	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
JetBlue	Cheapest£521	Average£712	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Air Canada	Cheapest£549	Average£615	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Brussels Airlines	Cheapest£551	Average£793	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights
United Airlines	Cheapest£555	Average£818	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

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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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Cheap flights from Portsmouth to Houston from £790

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 15/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap 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 21 August 2026.

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 21 August 2026.

Best flights from Portsmouth to HoustonDiscover carefully curated flight deals from Portsmouth to Houston that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 August 2026.

Discover carefully curated flight deals from Portsmouth to Houston that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 August 2026.

Last-minute flights from Portsmouth to HoustonDiscover last-minute flight deals from Portsmouth to Houston. Data last updated 21 August 2026 and is based on user searches.

Discover last-minute flight deals from Portsmouth to Houston. Data last updated 21 August 2026 and is based on user searches.

One-way flights from Portsmouth to HoustonSearch for one-way flight options from Portsmouth to Houston. Find affordable one-way fares based on user searches. Data last updated 21 August 2026.

Search for one-way flight options from Portsmouth to Houston. Find affordable one-way fares based on user searches. Data last updated 21 August 2026.

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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

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 21 August 2026.

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.

Related info for your journey

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?

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Alternative routes for Portsmouth to Houston

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Complete your trip

Complete your trip to Houston by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to Texas

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Portsmouth and Houston flights

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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 21 August 2026.

Best flights from Portsmouth to Houston
Discover carefully curated flight deals from Portsmouth to Houston that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 August 2026.

Last-minute flights from Portsmouth to Houston
Discover last-minute flight deals from Portsmouth to Houston. Data last updated 21 August 2026 and is based on user searches.

One-way flights from Portsmouth to Houston
Search for one-way flight options from Portsmouth to Houston. Find affordable one-way fares based on user searches. Data last updated 21 August 2026.