IAH LHR
Houston to London
Track this route
IAH
Houston
LHR
London
Flight Time
~11h
Usually 1 stop
Est. Price Range
$270-$540
round trip (estimated)
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Route Details

Flight Duration

The flight from Houston to London takes approximately 11 hours, typically with one connection.

Airport Transfer

Heathrow Express to Paddington is £25 but takes 15 minutes. The Tube is £5.50 and takes 45 minutes. If you have time, save the money. Also, Oyster cards work out way cheaper than individual tickets.

Visa & Entry Requirements

US passport holders can visit visa-free for up to 6 months (tourism/business). UK is NOT part of Schengen, so this doesn't count toward your 90-day Schengen limit.

When to Book

1–2 Weeks Out
Last-minute

Prices are unpredictable this close. Occasionally airlines release unsold seats at steep discounts, but you're more likely to pay a premium. Only viable if you have flexibility.

6–10 Weeks Out
Sweet spot

This is typically when Houston to London fares hit their lowest point. Airlines have a clear picture of demand but seats are still widely available. Set your price alert now to catch the dip.

3–6 Months Out
Peak season

For summer travel and major holidays, booking 3–6 months early locks in reasonable rates before demand spikes. Don't wait for the "perfect" price — set a target and track it.

Pro tip: Flight prices fluctuate hundreds of times per day based on demand, competitor pricing, and remaining seats. Rather than checking manually, set a Wildly price alert and we'll text you the momentIAHLHR fares drop to your target price.

About London

London feels like five cities in one — the financial hustle of the City, the creative chaos of Shoreditch, the old-money elegance of South Ken. Americans love that there's no language barrier, but be ready for sticker shock: a pint costs what a six-pack does back home.

Highlights

  • West End theater scene (book ahead, day-of tickets are a gamble)
  • Borough Market for street food that won't destroy your budget
  • Free museums including British Museum and Tate Modern
  • Pub culture in neighborhoods like Notting Hill or Camden

Best Time to Visit

April, May, September, October

April-May and September-October dodge the summer tourist crush and give you decent weather without the December rain. Plus flights and hotels drop 25-30% outside peak season.

Cost of Living

About 40% more expensive than NYC for meals and hotels. Think $20 for a basic lunch, $250+/night for a decent hotel.

Timezone & Jet Lag

UTC+0 (UTC+1 in summer). 5 hours ahead of US East Coast. Moderate jet lag possible — stay hydrated and get sunlight on arrival.

Related Routes

Nearby airports to London

Related Reading

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