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Cheap flights from Portsmouth to Galveston from £507

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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — HOU
16 Oct — 23 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Portsmouth to Galveston

Keep the following information in mind while searching for Portsmouth to Galveston flight deals. Data was last updated 16 September 2025.

Round-trip from

£720

One-way from

£507

Popular in

July

Cheapest in

March

Average price

£639
Delta
  • Delta
  • 1/10-23/10
  • 4 total stops
  • 40h 02m total
  • Portsmouth to Galveston
Search Deals
2/10
  • 2/10
  • 3 total stops
  • 43h 49m total
  • Portsmouth to Galveston
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (£91 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Portsmouth to Galveston

Cheapest flights from Portsmouth to Galveston
Explore the most affordable flight options available from Portsmouth to Galveston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 16 September 2025.

Wed 1/1009:20SOU - HOU
2 stops19h 17mDelta
Thu 23/1006:00HOU - SOU
2 stops20h 45mDelta
Deal found 14/9£720
Thu 2/1009:20SOU - HOU
2 stops19h 17mKLM
Thu 23/1010:13HOU - SOU
2 stops16h 32mKLM
Deal found 14/9£726
Thu 2/1009:20SOU - HOU
2 stops19h 17mDelta
Fri 24/1006:00HOU - SOU
2 stops20h 45mDelta
Deal found 14/9£753
Fri 3/1009:20SOU - HOU
2 stops19h 17mKLM
Thu 23/1018:44HOU - SOU
2 stops16h 16mKLM
Deal found 14/9£824
Wed 1/1009:20SOU - HOU
2 stops19h 17mKLM
Fri 24/1010:13HOU - SOU
2 stops16h 32mKLM
Deal found 14/9£878
Fri 3/1009:20SOU - HOU
2 stops19h 17mKLM
Fri 24/1010:13HOU - SOU
2 stops16h 32mKLM
Deal found 14/9£976
Wed 1/1009:20SOU - HOU
2 stops19h 17mKLM
Sat 25/1018:44HOU - SOU
2 stops17h 41mKLM
Deal found 14/9£994
Fri 3/1009:20SOU - HOU
2 stops19h 17mDelta
Sat 25/1014:22HOU - SOU
2 stops13h 28mDelta
Deal found 14/9£1,088
Wed 1/1009:20SOU - HOU
2 stops19h 17mKLM
Fri 3/1018:37HOU - SOU
2 stops16h 53mKLM
Deal found 14/9£2,904
Thu 2/1009:20SOU - HOU
2 stops19h 17mKLM
Fri 3/1010:44HOU - SOU
2 stops16h 01mKLM
Deal found 15/9£2,934

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to Galveston 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 16 September 2025.
Use the filters below to find and compare flights from Portsmouth to Galveston that are best for you.

Fly from

Portsmouth

Fly to

Galveston

Route

Depart

Return

Price

SouthamptonHouston

SOU - HOU

SOUHOU

Southampton Eastleigh

Wed 1/10

09:20-22:37

2 stops19h 17m

Houston Hobby

Thu 23/10

06:00-08:45

2 stops20h 45m

£720

SouthamptonHouston

SOU - HOU

SOUHOU

Southampton Eastleigh

Thu 2/10

09:20-22:37

2 stops19h 17m

Houston Hobby

Thu 23/10

10:13-08:45

2 stops16h 32m

£726

SouthamptonHouston

SOU - HOU

SOUHOU

Southampton Eastleigh

Thu 2/10

09:20-22:37

2 stops19h 17m

Houston Hobby

Fri 24/10

06:00-08:45

2 stops20h 45m

£753

SouthamptonHouston

SOU - HOU

SOUHOU

Southampton Eastleigh

Fri 3/10

09:20-22:37

2 stops19h 17m

Houston Hobby

Thu 23/10

18:44-17:00

2 stops16h 16m

£824

SouthamptonHouston

SOU - HOU

SOUHOU

Southampton Eastleigh

Wed 1/10

09:20-22:37

2 stops19h 17m

Houston Hobby

Fri 24/10

10:13-08:45

2 stops16h 32m

£878

SouthamptonHouston

SOU - HOU

SOUHOU

Southampton Eastleigh

Fri 3/10

09:20-22:37

2 stops19h 17m

Houston Hobby

Fri 24/10

10:13-08:45

2 stops16h 32m

£976

SouthamptonHouston

SOU - HOU

SOUHOU

Southampton Eastleigh

Wed 1/10

09:20-22:37

2 stops19h 17m

Houston Hobby

Sat 25/10

18:44-18:25

2 stops17h 41m

£994

SouthamptonHouston

SOU - HOU

SOUHOU

Southampton Eastleigh

Thu 2/10

09:20-22:37

2 stops19h 17m

Houston Hobby

Sat 25/10

18:44-18:25

2 stops17h 41m

£994

SouthamptonHouston

SOU - HOU

SOUHOU

Southampton Eastleigh

Fri 3/10

09:20-22:37

2 stops19h 17m

Houston Hobby

Sat 25/10

14:22-09:50

2 stops13h 28m

£1,088

SouthamptonHouston

SOU - HOU

SOUHOU

Southampton Eastleigh

Thu 2/10

09:20-22:37

2 stops19h 17m

Houston Hobby

Fri 3/10

10:44-08:45

2 stops16h 01m

£2,934

Flights are sorted by cheapest return flights first.

Deals found on 14/9

Showing 1-10 of 16 results
1
2

Best time to book a flight from Portsmouth to Galveston

Have a flexible travel schedule? Discover the best time to fly to Galveston from Portsmouth with our price prediction graph.
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 Galveston

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

Currently, January is the cheapest month in which you can book a flight from Portsmouth to Galveston (average of £765). Flying from Portsmouth to Galveston 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 G4L?

Find hourly flight availability from Portsmouth to Galveston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 September 2025.

When flying from Portsmouth to Galveston, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to Galveston. 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 Galveston?

    There are many flights that can get you from Portsmouth to Galveston in 19h 17m. Fly via Delta or KLM to get the fastest option. The distance from Portsmouth to Galveston is about 4813 mi.

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

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

  • How can I find direct flights from Portsmouth to Galveston?

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Portsmouth to Galveston (average of £765). Flying from Portsmouth to Galveston 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Portsmouth to Galveston

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Top 10 airlines flying from Portsmouth to Galveston

Discover the top 10 airlines that operate flights from Portsmouth to Galveston. 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 16 September 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£313Average£700FlexibilityNo cancel feeOn-time75%
Search KLM flights
WestJetCheapest£378Average£549FlexibilityNo cancel feeOn-time60%
Search WestJet flights
Virgin AtlanticCheapest£378Average£736FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
IcelandairCheapest£440Average£638FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£450Average£572FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
Scandinavian AirlinesCheapest£475Average£634FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
LufthansaCheapest£494Average£741FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
FinnairCheapest£500Average£628FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Austrian AirlinesCheapest£508Average£792FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
IberiaCheapest£518Average£766FlexibilityNo cancel feeOn-time77%
Search Iberia flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Cheapflights helps you search for flights from Portsmouth to Galveston via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Galveston from Portsmouth.

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

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

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

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!

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