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Cheap flights from Portsmouth to Houston George Bush Intcntl Airport

LHR — IAH
28 Oct — 4 Nov1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Portsmouth to George Bush Intcntl

Popular in

June

Cheapest in

January

Average price

£743
Highest demand for flights based on searches. 8% potential increase in price (£60 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£10 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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Cheapflights Insights

Everything you need to know about your flight from Portsmouth to Houston George Bush Intcntl Airport

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

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.

Related info for your journey

  • 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 American Airlines (79%), Aer Lingus (79%) or Finnair (79%) 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 £512. While the most popular route (Southampton Eastleigh - Houston George Bush Intcntl) can be booked for £897 on average, our data indicates £1,728 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.

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Top 10 airlines flying from Portsmouth to George Bush Intcntl

AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest£59Average£108FlexibilityNo cancel feeOn-time62%
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IberiaCheapest£353Average£978FlexibilityNo cancel feeOn-time77%
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KLMCheapest£369Average£612FlexibilityNo cancel feeOn-time75%
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Virgin AtlanticCheapest£392Average£656FlexibilityNo cancel feeOn-time72%
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Scandinavian AirlinesCheapest£424Average£482FlexibilityNo cancel feeOn-time77%
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JetBlueCheapest£558Average£713FlexibilityNo cancel feeOn-time62%
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United AirlinesCheapest£571Average£994FlexibilityNo cancel feeOn-time69%
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Brussels AirlinesCheapest£575Average£876FlexibilityNo cancel feeOn-timeN/A
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British AirwaysCheapest£578Average£857FlexibilityNo cancel feeOn-time70%
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Austrian AirlinesCheapest£585Average£890FlexibilityNo cancel feeOn-time78%
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How does Cheapflights help users find flights from Portsmouth to George Bush Intcntl?

Cheapflights makes it easy to find Portsmouth to George Bush Intcntl flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Portsmouth to George Bush Intcntl?

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 George Bush Intcntl from Portsmouth.

Can Cheapflights find flights from Portsmouth to George Bush Intcntl with no change fees?

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.

Can Cheapflights notify me if prices for flights from Portsmouth to George Bush Intcntl become cheaper?

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