Cheap flights from Portsmouth to Houston
How to find the cheapest flight from
Portsmouth to Houston (IAH)
All the information you need to plan the best null to IAH flight in 2022: compare Portsmouth to Houston flight prices with the expected peak season, weather and rainfall in Houston.
When is the cheapest time to fly from Portsmouth to Houston (P0R - IAH)?
When flying from Portsmouth to Houston, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
What is the cheapest month to fly from Portsmouth to Houston?
Due to multiple factors, expect to potentially pay more when booking in July. For low rates, February can be a great choice for travel to Houston. Flights to Houston from Portsmouth in February are about £800 on average during February, but can be found for as low as £582.
How far in advance should I book a flight from Portsmouth to Houston?
Travelers have found it’s best to book a flight 61 days in advance to save up to 3% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 61 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Portsmouth to Houston 1-2 weeks in advance for as low as £812, or £818 for flights within the next 24 hours.
Cheap flights from Portsmouth to Houston in August, September 2022
The best prices found for Portsmouth to IAH flights in August, September
Portsmouth to Houston 2022 flight deals
Cheap flights to Houston from Portsmouth found for this year
One-way flights to Houston from Portsmouth
The cheapest one-way flights from Portsmouth to Houston
Related info for your journey
Useful info, stats and facts about <span class="emphasized">Portsmouth</span> to <span class="emphasized">Houston</span> flights.
COVID Restrictions
View COVID Travel Restrictions for Houston, TXAlternative routes for Portsmouth to Houston
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from Portsmouth to Houston
The chart below displays the airlines Cheapflights users travelling from Portsmouth to Houston choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Popular flight searches
Check out other popular destinations found by fellow travellers in 2022.
Hourly flight availability from Portsmouth to Houston
See what time of day planes typically take off from Portsmouth towards Houston.
| Morning 6 AM to midday | 64% of flight departures |
| Afternoon Midday to 6 PM | 35% of flight departures |
| Early morning Midnight to 6 AM | 1% of flight departures |
| Evening 6 PM to midnight | 0% of flight departures |