$515 Cheap Flights from Houston (IAH) to Londonderry (LDY)

View $515 flight on Wed, Dec 3, 2025Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Londonderry (LDY-City of Derry)

Cheap Flights from Houston to Londonderry (IAH-LDY)

Prices were available within the past 7 days and start at $515 for one-way flights and $824 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Dec 1 - Wed, Dec 10
IAH
Houston
LDY
Londonderry
$824 Roundtrip, found 4 days ago
$824
Roundtrip
found 4 days ago
Select United flight, departing Mon, Dec 1 from Houston to Londonderry, returning Wed, Dec 10, priced at $824 found 4 days ago
United
Wed, Dec 3 - Wed, Dec 10
IAH
Houston
LDY
Londonderry
$829 Roundtrip, found 4 days ago
$829
Roundtrip
found 4 days ago
Select United flight, departing Wed, Dec 3 from Houston to Londonderry, returning Wed, Dec 10, priced at $829 found 4 days ago
United
Mon, Dec 1 - Sun, Dec 14
IAH
Houston
LDY
Londonderry
$874 Roundtrip, found 4 days ago
$874
Roundtrip
found 4 days ago
Select United flight, departing Mon, Dec 1 from Houston to Londonderry, returning Sun, Dec 14, priced at $874 found 4 days ago
United
Wed, Dec 3 - Sat, Dec 13
IAH
Houston
LDY
Londonderry
$879 Roundtrip, found 4 days ago
$879
Roundtrip
found 4 days ago
Select United flight, departing Wed, Dec 3 from Houston to Londonderry, returning Sat, Dec 13, priced at $879 found 4 days ago
United
Wed, Dec 3 - Sat, Dec 13
IAH
Houston
LDY
Londonderry
$889 Roundtrip, found 4 days ago
$889
Roundtrip
found 4 days ago
Select United flight, departing Wed, Dec 3 from Houston to Londonderry, returning Sat, Dec 13, priced at $889 found 4 days ago
United
Fri, Dec 5 - Sun, Dec 14
IAH
Houston
LDY
Londonderry
$924 Roundtrip, found 4 days ago
$924
Roundtrip
found 4 days ago
Select United flight, departing Fri, Dec 5 from Houston to Londonderry, returning Sun, Dec 14, priced at $924 found 4 days ago
United
Wed, Dec 3 - Sat, Dec 13
IAH
Houston
LDY
Londonderry
$931 Roundtrip, found 4 days ago
$931
Roundtrip
found 4 days ago
Select United flight, departing Wed, Dec 3 from Houston to Londonderry, returning Sat, Dec 13, priced at $931 found 4 days ago
British Airways
Sun, Dec 7 - Tue, Dec 16
IAH
Houston
LDY
Londonderry
$958 Roundtrip, found 1 day ago
$958
Roundtrip
found 1 day ago
Select British Airways flight, departing Sun, Dec 7 from Houston to Londonderry, returning Tue, Dec 16, priced at $958 found 1 day ago
American Airlines
Wed, Dec 3 - Sat, Dec 13
IAH
Houston
LDY
Londonderry
$983 Roundtrip, found 4 days ago
$983
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Dec 3 from Houston to Londonderry, returning Sat, Dec 13, priced at $983 found 4 days ago
Alaska Airlines
Sun, Dec 7 - Tue, Dec 16
IAH
Houston
LDY
Londonderry
$1,090 Roundtrip, found 1 day ago
$1,090
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sun, Dec 7 from Houston to Londonderry, returning Tue, Dec 16, priced at $1,090 found 1 day ago
Flights from Houston (IAH) to Londonderry (LDY)
Origin airport
George Bush Intercontinental
Destination airport
City of Derry
Airlines serving
British Airways
Roundtrip price
$824
Distance
4478 mi

Houston to Londonderry Flights

The cheapest times to fly from Houston to Londonderry

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Houston to Londonderry are during the month of December. You can find some of the cheapest flights from Houston to Londonderry with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Houston to Londonderry

Sunday is one of the best days to book for cheap flights from Houston to Londonderry: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Houston to Londonderry

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Houston to Londonderry in 2025. You can also book with separate airlines for your outbound and return journeys, from $515 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Houston to Londonderry flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Houston to Londonderry airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from George Bush Intercontinental Airport (IAH) to City of Derry Airport (LDY) cost?
Snag a cheap one-way flight from $515 or cheap return flight from $824 from George Bush Intercontinental Airport (IAH) to City of Derry Airport (LDY) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from George Bush Intercontinental Airport (IAH) to City of Derry Airport (LDY)?
The cheapest month to fly from IAH to LDY is December, when there's less demand. Off-peak months are typically when you'll find lower airfares between these airports.
What is the cheapest airline that flies from George Bush Intercontinental Airport (IAH) to City of Derry Airport (LDY)?
Use the filters on Expedia to compare different airlines and find the most affordable carrier that'll fly you from IAH to LDY. Then, sort your results by "Price (lowest to highest)" to snap up a good deal.
How many flights per day from George Bush Intercontinental Airport (IAH) to City of Derry Airport (LDY)?
There are no daily direct flights from George Bush Intercontinental Airport (IAH) to City of Derry Airport (LDY). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from IAH to LDY?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* However, this can vary based on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from George Bush Intercontinental Airport (IAH) to City of Derry Airport (LDY)?
To avoid potential delays on the George Bush Intercontinental Airport (IAH) to City of Derry Airport (LDY) route, aim to fly before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from George Bush Intercontinental Airport (IAH) to City of Derry Airport (LDY) last-minute?
Booking your plane ticket from IAH to LDY shortly before your getaway is usually more expensive. But if there's some wiggle room with your travel dates and times, you could score a cheap last-minute fare.
Is it cheaper to book an IAH to LDY flight and hotel package?
Compared with arranging hotels and flights separately, booking an IAH to LDY flight and hotel package with Expedia could lead to significant savings. What's more, having it all in one place takes the hassle out of planning your trip. Simply pick your flights and select from our wide range of stays, then personalize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from George Bush Intercontinental Airport (IAH) to City of Derry Airport (LDY)?
It's generally possible to cancel or reschedule your IAH to LDY flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.