Cheap Flights from Houston to London from US$337

Frequently Asked Questions

• What are the cheapest flights from Houston to London (HOU-LON)?

  Based on Trip.com data, American Airlines offers one-way fares as low as US$337 on Cheapest nonstop routes (e.g. IAH to LHR on Thu, Oct 8), while Frontier Airlines offers Cheapest nonstop round-trips from US$741 departing on Wed, Aug 19 and returning on Wed, Aug 26.

• Which airlines offer direct flights from Houston to London?

  At the moment, you can catch a nonstop flight from Houston to London with the following airlines, including: British Airways Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long is a flight from Houston to London?

  It takes about 9 hours 17 minutes to fly from Houston to London.

• When is the best time to book flights from Houston to London?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Houston to London is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there per week from Houston to London?

  Based on Trip.com data in the past 4 weeks, there is 34 flight per week flying from Houston to London. You can check the weekly schedule for popular airlines on this route below: Air Canada: S/M/T/W/T/F/S -- AC3859 (20:47)

• How can I find the best deals on flights from Houston to London?

  To find best deals on flights from Houston to London, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Thu, Oct 8, with one-way flights priced at just US$337.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is United Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for London travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Houston (HOU) to London (LON) the cheapest?

  The cheapest months to fly from Houston to London is October, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Houston to London on?

  After crunching the numbers on our August flight calendar, it's currently cheapest to fly from Houston to London on August 20, 2026 with Frontier Airlines, with prices starting at US$283.

• Which airports can I fly to for London from Houston?

  You can land at any one of the following hubs in London, with George Bush Intercontinental Airport to Heathrow Airport (IAH-LHR) is by far the most common option on this route: London City Airport (LCY) London Gatwick Airport (LGW) Heathrow Airport (LHR) London Luton Airport (LTN) London Southend Airport (SEN) London Stansted Airport (STN).

• Is there any time difference between Houston and London?

  The time difference between London and Houston is 6h.

• How do I change or cancel my ticket from Houston to London?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

• What is the average cost of a one-way flight from Houston to London?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Houston to London is US$706. Fares vary by travel date, airline and availability.

• What is the average cost of a round-trip flight from Houston to London?

  Based on Trip.com data for travel in the next 30 days, the average round-trip fare from Houston to London is US$1,408. The final price depends on the outbound and return dates, airline and fare conditions.

• How do I book flights from Houston to London on Trip.com?

  Enter Houston and London, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.

• Are there budget airlines on the Houston to London route?

  Frontier Airlinesare the most popular budget airlines flying from Houston to London. Check baggage, seat and payment fees before comparing the final price.