International route
Flights from LHR to IAH
From $459 rt
LHR–IAH is a transatlantic market with strong seasonal swings. Shoulder months and midweek departures often balance price and schedule better than peak summer Fridays. Recent searches found fares from $459 rt. Typical international flight time is Varies by airline and connections — search above for live times.
Sample fares found recently — search above for live prices on your dates.
Search live LHR → IAH faresTypical flight time
Varies by airline and connections — search above for live times
Best time to book
6–12 weeks before departure
Often cheapest days
Tuesday–Thursday; shoulder-season midweeks
Best months to fly
Research Houston weather and local holidays — avoiding peak tourist weeks often saves on airfare.
Flying from London (LHR) to Houston (IAH)
LHR–IAH is a transatlantic market with strong seasonal swings. Shoulder months and midweek departures often balance price and schedule better than peak summer Fridays.
Leaving London
London departures use Heathrow Airport (LHR). Arrive with buffer for security and any terminal change, then compare nearby airports when fares spike.
Arriving in Houston
Houston is served through George Bush Intercontinental Airport (IAH). Review nonstop and 1-stop options above to balance price and total travel time.
Major holidays and summer weekends usually mean higher fares — midweek often saves more.
Alternative airports
If London (LHR) or Houston (IAH) has multiple airports in the metro, check nearby options in your search for better fares.
Airlines on LHR–IAH
- Major full-service and low-cost carriers — review live results above
Tips for cheaper London to Houston flights
- •For LHR–IAH, aim to book about 6–12 weeks before departure when you can—earlier for holidays.
- •Research Houston weather and local holidays — avoiding peak tourist weeks often saves on airfare.
- •Shoulder seasons (spring/fall) and Tuesday–Thursday departures often balance price better than peak summer Fridays.
- •If London (LHR) or Houston (IAH) has multiple airports in the metro, check nearby options in your search for better fares.
- •Check passport validity and entry rules with official government sources before you pay.
Frequently asked questions
How long is the flight from London to Houston?
Most itineraries from LHR to IAH take Varies by airline and connections — search above for live times. Exact duration depends on nonstop vs connecting flights and winds.
When is usually a better time to fly LHR–IAH?
Major holidays and summer weekends usually mean higher fares — midweek often saves more. Use flexible midweek dates when you can, and search more than one week if your plans allow.
Which airlines may appear from London to Houston?
Schedules change, but this market often shows carriers such as Major full-service and low-cost carriers — review live results above. Confirm the operating airline and any codeshare in live results.
Are taxes and fees included in the displayed fare?
Mandatory taxes are included where shown at checkout. Optional extras such as seats, bags, and travel protection are itemized before you pay.
What sample fares has Flitura seen on LHR–IAH?
Recent searches found round-trip samples from $459 on this route. Live prices change—search with your dates for the current total.
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How this page is built
This flight route page is written for travelers planning a real trip—not to rank for every keyword variation. Route and destination pages combine Flitura flight-search tools with editorial airport, airline, and booking guidance. Sample schedules and “from” prices, when shown, come from live or recently observed search data and can change. Always confirm the final fare, baggage rules, and travel documents at checkout.