Cheap Flights From George Bush Intercontinental (IAH) To Heathrow (LHR)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Find The Best Dates To Fly

Cheapest Flights from Houston (IAH) to London (LHR)

The cheapest flights to Heathrow found within the past 7 days were CA $707 round trip and CA $411 one way. Prices and availability subject to change. Additional terms may apply.

Wed, Oct. 1 - Fri, Oct. 31
IAH
Houston
LHR
London
CA $707 Roundtrip, found 1 day ago
CA $707
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Oct. 1 from Houston to London, returning Fri, Oct. 31, priced at CA $707 found 1 day ago
Mon, Sep. 29 - Tue, Oct. 28
IAH
Houston
LHR
London
CA $707 Roundtrip, found 1 day ago
CA $707
Roundtrip
found 1 day ago
Select Virgin Atlantic flight, departing Mon, Sep. 29 from Houston to London, returning Tue, Oct. 28, priced at CA $707 found 1 day ago
Wed, Oct. 1 - Fri, Oct. 31
IAH
Houston
LHR
London
CA $709 Roundtrip, found 1 day ago
CA $709
Roundtrip
found 1 day ago
Select Virgin Atlantic flight, departing Wed, Oct. 1 from Houston to London, returning Fri, Oct. 31, priced at CA $709 found 1 day ago
Wed, Sep. 3 - Fri, Sep. 12
IAH
Houston
LHR
London
CA $710 Roundtrip, found 21 hours ago
CA $710
Roundtrip
found 21 hours ago
Select Delta flight, departing Wed, Sep. 3 from Houston to London, returning Fri, Sep. 12, priced at CA $710 found 21 hours ago
Sun, Aug. 17 - Tue, Sep. 2
IAH
Houston
LHR
London
CA $717 Roundtrip, found 4 days ago
CA $717
Roundtrip
found 4 days ago
Select British Airways flight, departing Sun, Aug. 17 from Houston to London, returning Tue, Sep. 2, priced at CA $717 found 4 days ago
Tue, Sep. 2 - Tue, Sep. 16
IAH
Houston
LHR
London
CA $717 Roundtrip, found 6 days ago
CA $717
Roundtrip
found 6 days ago
Select British Airways flight, departing Tue, Sep. 2 from Houston to London, returning Tue, Sep. 16, priced at CA $717 found 6 days ago
Wed, Oct. 1 - Fri, Oct. 31
IAH
Houston
LHR
London
CA $717 Roundtrip, found 1 day ago
CA $717
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Oct. 1 from Houston to London, returning Fri, Oct. 31, priced at CA $717 found 1 day ago
Tue, Oct. 7 - Tue, Oct. 21
IAH
Houston
LHR
London
CA $719 Roundtrip, found 12 hours ago
CA $719
Roundtrip
found 12 hours ago
Select Air Canada flight, departing Tue, Oct. 7 from Houston to London, returning Tue, Oct. 21, priced at CA $719 found 12 hours ago
Wed, Oct. 1 - Fri, Oct. 31
IAH
Houston
LHR
London
CA $734 Roundtrip, found 1 day ago
CA $734
Roundtrip
found 1 day ago
Select Air France flight, departing Wed, Oct. 1 from Houston to London, returning Fri, Oct. 31, priced at CA $734 found 1 day ago
Wed, Oct. 1 - Fri, Oct. 31
IAH
Houston
LHR
London
CA $752 Roundtrip, found 1 day ago
CA $752
Roundtrip
found 1 day ago
Select KLM flight, departing Wed, Oct. 1 from Houston to London, returning Fri, Oct. 31, priced at CA $752 found 1 day ago

Frequently asked questions

Are there direct flights from Houston Airport to London Heathrow?
Multiple airlines advertise flights straight from George Bush Intercontinental Airport (IAH) to London Heathrow. These include United Airlines and British Airways — check them out if you'd prefer to land at London with no fuss.
What airlines fly from Houston Airport to Heathrow Airport?
There are several airlines that advertise direct flights from Houston Airport to Heathrow Airport (LHR). United Airlines (UA) is among the best of them, operating approximately 30 flights each month. Another option is British Airways (BA), which has 30 flights each month. The more airlines you consider, the more likely you are to pick up a superb deal.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

Popular Flight Routes from Houston (IAH)

Travelers at IAH love to visit these top cities. Roam to the top destinations from Houston (IAH) today with the cheap prices from Travelocity!

Popular Flight Routes from London (LHR)

Travelers at LHR love to visit these top cities. Roam to the top destinations from London(LHR) today with the cheap prices from Travelocity!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.