How long is the flight from Portsmouth to Houston?

A quick flight from Portsmouth to Houston can take about 25h 20m. Delta provides one of the quickest options available for as low as £945. 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.

£945+ 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 11 September 2026.

Sun 1/1117:30 -

1 stop25h 35m

Mon 16/1115:35 -

2 stops19h 30m

Deal found 8/9£945

Wed 4/1108:40 -

2 stops17h 22m

Tue 17/1111:35 -

2 stops14h 35m

Deal found 8/9£949

Mon 2/1108:40 -

2 stops20h 23m

Tue 17/1110:27 -

2 stops15h 43m

Deal found 8/9£949

Fri 13/1112:35 -

2 stops31h 30m

Tue 17/1115:50 -

2 stops16h 45m

Deal found 6/9£961

Thu 5/1119:40 -

2 stops24h 25m

Wed 18/1115:50 -

2 stops21h 20m

Deal found 8/9£962

Wed 25/1108:50 -

2 stops35h 15m

Sun 29/1115:50 -

2 stops38h 15m

Deal found 7/9£970

Tue 27/1019:40 -

2 stops24h 25m

Tue 3/1121:40 -

2 stops32h 25m

Deal found 10/9£971

Tue 27/1008:40 -

1 stop34h 30m

Wed 4/1112:03 -

2 stops14h 07m

Deal found 10/9£979

Tue 27/1008:40 -

1 stop34h 30m

Mon 2/1114:21 -

2 stops35h 49m

Deal found 10/9£983

Wed 21/1009:15 -

2 stops19h 48m

Wed 4/1111:12 -

2 stops14h 58m

Deal found 10/9£1,011

Fri 23/1009:05 -

2 stops19h 58m

Fri 30/1017:28 -

2 stops18h 22m

Deal found 8/9£1,340

Sun 25/1020:00 -

2 stops42h 21m

Sun 1/1117:28 -

2 stops17h 37m

Deal found 10/9£1,395

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 11 September 2026.

Mon 2/1117:45 -

1 stop25h 20m

Mon 16/1118:19 -

2 stops16h 46m

Deal found 8/9£945

Fri 13/1112:35 -

2 stops31h 30m

Tue 17/1115:50 -

2 stops16h 45m

Deal found 6/9£961

Sun 25/1020:00 -

2 stops42h 21m

Sun 1/1117:28 -

2 stops17h 37m

Deal found 10/9£1,395

Sun 1/1117:30 -

1 stop25h 35m

Mon 16/1115:35 -

2 stops19h 30m

Deal found 8/9£945

Wed 25/1115:05 -

2 stops53h 00m

Sun 29/1115:50 -

2 stops21h 20m

Deal found 10/9£962

Wed 4/1108:40 -

2 stops20h 23m

Mon 16/1110:27 -

2 stops15h 43m

Deal found 8/9£949

Thu 5/1119:40 -

2 stops30h 15m

Sun 15/1115:50 -

2 stops21h 20m

Deal found 8/9£962

Mon 2/1108:40 -

2 stops20h 23m

Mon 16/1110:27 -

2 stops15h 43m

Deal found 8/9£949

Thu 5/1119:40 -

2 stops24h 25m

Mon 16/1115:50 -

2 stops21h 20m

Deal found 8/9£962

Mon 2/1108:40 -

2 stops20h 23m

Tue 17/1110:27 -

2 stops15h 43m

Deal found 8/9£949

Fri 6/1119:40 -

2 stops30h 15m

Wed 18/1115:50 -

2 stops21h 20m

Deal found 8/9£962

Fri 6/1119:40 -

2 stops24h 25m

Sat 21/1121:40 -

2 stops15h 30m

Deal found 8/9£962

Tue 27/1008:40 -

1 stop34h 30m

Wed 4/1112:03 -

2 stops14h 07m

Deal found 10/9£979

Tue 27/1019:40 -

2 stops24h 25m

Tue 3/1121:40 -

2 stops32h 25m

Deal found 10/9£971

Sun 25/1017:30 -

1 stop25h 35m

Wed 4/1114:22 -

2 stops20h 43m

Deal found 10/9£1,006

Wed 21/1009:15 -

2 stops19h 48m

Wed 4/1111:12 -

2 stops14h 58m

Deal found 10/9£1,011

Wed 21/1009:15 -

2 stops19h 48m

Tue 3/1117:28 -

2 stops17h 37m

Deal found 10/9£1,011

Fri 23/1009:05 -

2 stops19h 58m

Fri 30/1017:28 -

2 stops18h 22m

Deal found 8/9£1,340

Find flight deals from Portsmouth to Houston

Round-trip from	£945
Popular in	June
Cheapest in	February
Average price	£702

Delta
1/11-18/11
3 total stops
40h 40m total
Portsmouth to Houston

Search Deals

Highest demand for flights based on searches. 8% potential increase in price (£60 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (£10 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Cheapflights Fare Finder

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

Cheapest return flight

SouthamptonHouston

SOU Southampton Eastleigh - IAH Houston George Bush Intcntl

SOUIAH

Southampton Eastleigh

Mon 2/11

17:45-13:05

1 stop25h 20m

Houston George Bush Intcntl

Mon 16/11

18:19-17:05

2 stops16h 46m

£945

SouthamptonHouston

SOU Southampton Eastleigh - IAH Houston George Bush Intcntl

SOUIAH

Southampton Eastleigh

Sun 1/11

17:30-13:05

1 stop25h 35m

Houston George Bush Intcntl

Mon 16/11

15:35-17:05

2 stops19h 30m

£945

SouthamptonHouston

SOU Southampton Eastleigh - HOU Houston Hobby

SOUHOU

Southampton Eastleigh

Wed 4/11

08:40-23:03

2 stops20h 23m

Houston Hobby

Mon 16/11

10:27-08:10

2 stops15h 43m

£949

SouthamptonHouston

SOU Southampton Eastleigh - HOU Houston Hobby

SOUHOU

Southampton Eastleigh

Mon 2/11

08:40-23:03

2 stops20h 23m

Houston Hobby

Mon 16/11

10:27-08:10

2 stops15h 43m

£949

SouthamptonHouston

SOU Southampton Eastleigh - HOU Houston Hobby

SOUHOU

Southampton Eastleigh

Mon 2/11

08:40-23:03

2 stops20h 23m

Houston Hobby

Tue 17/11

10:27-08:10

2 stops15h 43m

£949

SouthamptonHouston

SOU Southampton Eastleigh - IAH Houston George Bush Intcntl

SOUIAH

Southampton Eastleigh

Fri 13/11

12:35-14:05

2 stops31h 30m

Houston George Bush Intcntl

Tue 17/11

15:50-14:35

2 stops16h 45m

£961

SouthamptonHouston

SOU Southampton Eastleigh - IAH Houston George Bush Intcntl

SOUIAH

Southampton Eastleigh

Wed 25/11

15:05-14:05

2 stops53h 00m

Houston George Bush Intcntl

Sun 29/11

15:50-19:10

2 stops21h 20m

£962

SouthamptonHouston

SOU Southampton Eastleigh - IAH Houston George Bush Intcntl

SOUIAH

Southampton Eastleigh

Thu 5/11

19:40-19:55

2 stops30h 15m

Houston George Bush Intcntl

Sun 15/11

15:50-19:10

2 stops21h 20m

£962

SouthamptonHouston

SOU Southampton Eastleigh - IAH Houston George Bush Intcntl

SOUIAH

Southampton Eastleigh

Thu 5/11

19:40-14:05

2 stops24h 25m

Houston George Bush Intcntl

Mon 16/11

15:50-19:10

2 stops21h 20m

£962

SouthamptonHouston

SOU Southampton Eastleigh - IAH Houston George Bush Intcntl

SOUIAH

Southampton Eastleigh

Fri 6/11

19:40-19:55

2 stops30h 15m

Houston George Bush Intcntl

Wed 18/11

15:50-19:10

2 stops21h 20m

£962

Flights are sorted by cheapest return flights first.

Deals found on 9/9

Showing 1-10 of 25 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 25h 20m. Delta provides one of the quickest options available for as low as £945. 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to Texas

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Alternative routes for Portsmouth to Houston

Heathrow to Dallas/Fort Worth flights

Heathrow to Hobby flights

Heathrow to George Bush Intcntl flights

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Newcastle upon Tyne to Hobby flights

Newcastle upon Tyne to Austin flights

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Birmingham to Hobby flights

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Birmingham to George Bush Intcntl flights

Newcastle upon Tyne to George Bush Intcntl flights

London City to El Paso flights

Birmingham to Austin flights

Bristol to Dallas/Fort Worth flights

Leeds to Dallas/Fort Worth flights

Heathrow to Midland flights

Southend to Dallas/Fort Worth flights

Gatwick to El Paso flights

Top 10 airlines flying from Portsmouth to Houston

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest£40	Average£93	FlexibilityNo cancel fee	On-time62%	Search Frontier flights
WestJet	Cheapest£169	Average£779	FlexibilityNo cancel fee	On-time60%	Search WestJet flights
Finnair	Cheapest£311	Average£902	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
KLM	Cheapest£362	Average£600	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Virgin Atlantic	Cheapest£384	Average£691	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
Scandinavian Airlines	Cheapest£415	Average£472	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Air France	Cheapest£432	Average£608	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Iberia	Cheapest£441	Average£1,029	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
JetBlue	Cheapest£525	Average£712	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
United Airlines	Cheapest£559	Average£872	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

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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.

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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.

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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 £945

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/11. 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 11 September 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 11 September 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 11 September 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 11 September 2026.

Last-minute flights from Portsmouth to HoustonDiscover last-minute flight deals from Portsmouth to Houston. Data last updated 11 September 2026 and is based on user searches.

Discover last-minute flight deals from Portsmouth to Houston. Data last updated 11 September 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 11 September 2026.

Search for one-way flight options from Portsmouth to Houston. Find affordable one-way fares based on user searches. Data last updated 11 September 2026.

Find flight deals from Portsmouth to Houston

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Use the filters below to find and compare flights from Portsmouth to Houston that are best for you.

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 11 September 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?

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.

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

Book a non-stop flight to one of these other cities located in Texas.

Search flights from Portsmouth to Houston by cabin class

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Portsmouth and Houston flights

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Portsmouth to 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 11 September 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 11 September 2026.

Last-minute flights from Portsmouth to Houston
Discover last-minute flight deals from Portsmouth to Houston. Data last updated 11 September 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 11 September 2026.