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Cheap flights from Portsmouth to Houston George Bush Intcntl Airport from £4,344

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — IAH
26 Feb — 5 Mar1
1 adult

Cheap flight deals from Portsmouth to George Bush Intcntl

Keep the following information in mind while searching for Portsmouth to George Bush Intcntl flight deals. Data was last updated 21 February 2025.

Round-trip from

£4,344

Popular in

August

Cheapest in

January

Average price

£642
Delta
  • Delta
  • 28/3-4/5
  • 2 total stops
  • 45h 55m total
  • Portsmouth to Houston
Highest demand for flights based on searches. 12% potential increase in price (£81 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£17 potential savings vs. average return price).
Average for round-trip flights in February 2025

Find flight deals from Portsmouth to George Bush Intcntl

Cheapest flights from Portsmouth to George Bush Intcntl
Explore the most affordable flight options available from Portsmouth to George Bush Intcntl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.

Fri 28/317:20SOU - IAH
1 stop26h 15mDelta
Sun 4/515:20IAH - SOU
1 stop19h 40mDelta
Deal found 20/2£4,344

Find flights from Portsmouth to George Bush Intcntl within your budget

Customise your flight search to find flights from Portsmouth to George Bush Intcntl 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 21 February 2025.

Fly from

Portsmouth

Fly to

George Bush Intcntl

Route

Depart

Return

Price

SouthamptonHouston

SOU - IAH

SOUIAH

Southampton Eastleigh

Fri 28/3

17:20-14:35

1 stop26h 15m

Houston George Bush Intcntl

Sun 4/5

15:20-17:00

1 stop19h 40m

£4,344

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Best time to book a flight from Portsmouth to George Bush Intcntl

Have a flexible travel schedule? Discover the best time to fly to George Bush Intcntl 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.

Travel insights for flights from Portsmouth to George Bush Intcntl

Get recent, data-driven insights about flights from Portsmouth to George Bush Intcntl including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Portsmouth to Houston George Bush Intcntl Airport?

Currently, February is the cheapest month in which you can book a flight from Portsmouth to Houston George Bush Intcntl Airport (average of £680). Flying from Portsmouth to Houston George Bush Intcntl Airport in July is currently the most expensive (average of £1,096). 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 IAH?

Find hourly flight availability from Portsmouth to George Bush Intcntl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 February 2025.

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

Weekly flight availability from Portsmouth to Houston George Bush Intcntl Airport

Explore weekly flight availability from Portsmouth to George Bush Intcntl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 21 February 2025.

The most flights from P0R to IAH are scheduled on a Monday (22 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (17 on average).

Rainfall in George Bush Intcntl by month

Plan your trip to George Bush Intcntl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Houston George Bush Intcntl Airport 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 George Bush Intcntl Airport when rainfall is around 81.0 mm.

Temperature in George Bush Intcntl by month

Plan your trip to George Bush Intcntl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Houston George Bush Intcntl Airport, 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 George Bush Intcntl

Get insights into the airlines that provide service to George Bush Intcntl. 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 George Bush Intcntl. Reviews last updated 21 February 2025.

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

8.0
Very Good

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to George Bush Intcntl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the most reliable airlines from Portsmouth to Houston George Bush Intcntl Airport?

    No one likes to see their flight delayed. When booking a flight from Portsmouth to Houston George Bush Intcntl Airport consider choosing Air Canada (71%), Austrian Airlines (71%) or Brussels Airlines (71%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Portsmouth to Houston George Bush Intcntl Airport?

    Looking at all options, your cheapest flight can be booked for £548. While the most popular route (Southampton Eastleigh - Houston George Bush Intcntl) can be booked for £1,669 on average our data indicates £1,196 when flying from Portsmouth to Houston George Bush Intcntl Airport.

  • Can I find deals for flights from Portsmouth to George Bush Intcntl that include hotel bookings?

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

  • How can I find direct flights from Portsmouth to George Bush Intcntl?

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

  • Can I find deals for business class flights from Portsmouth to George Bush Intcntl?

    Yes. Cheapflights offers flight deals from Portsmouth to George Bush Intcntl 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 Houston George Bush Intcntl Airport?

    Currently, February is the cheapest month in which you can book a flight from Portsmouth to Houston George Bush Intcntl Airport (average of £680). Flying from Portsmouth to Houston George Bush Intcntl Airport in July is currently the most expensive (average of £1,096). 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

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Top 10 airlines flying from Portsmouth to George Bush Intcntl

Discover the top 10 airlines that operate flights from Portsmouth to George Bush Intcntl. 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 21 February 2025.
AirlineCheapestAverageFlexibilityOn-time
WestJetCheapest£420Average£710FlexibilityNo cancel feeOn-time60%
Search WestJet flights
IcelandairCheapest£482Average£548FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£497Average£632FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
IberiaCheapest£521Average£834FlexibilityNo cancel feeOn-time77%
Search Iberia flights
FinnairCheapest£530Average£623FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Turkish AirlinesCheapest£536Average£701FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
LufthansaCheapest£539Average£829FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£571Average£753FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£608Average£861FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Brussels AirlinesCheapest£649Average£834FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights

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Certainly. Search results for flights to George Bush Intcntl from Portsmouth shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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