$354 Cheap Flights from Houston (IAH) to Dublin (DUB)

View $354 flight on Tue, Oct 14, 2025Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Dublin Airport (DUB)

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Cheap Flights from Houston to Dublin (IAH-DUB)

Prices were available within the past 7 days and start at $354 for one-way flights and $560 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Tue, May 5 - Wed, May 13
IAH
Houston
DUB
Dublin
$560 Roundtrip, found 7 hours ago
$560
Roundtrip
found 7 hours ago
Select Air Canada flight, departing Tue, May 5 from Houston to Dublin, returning Wed, May 13, priced at $560 found 7 hours ago
United
Tue, Apr 28 - Fri, May 8
IAH
Houston
DUB
Dublin
$565 Roundtrip, found 6 hours ago
$565
Roundtrip
found 6 hours ago
Select United flight, departing Tue, Apr 28 from Houston to Dublin, returning Fri, May 8, priced at $565 found 6 hours ago
Air Canada
Tue, Apr 28 - Fri, May 8
IAH
Houston
DUB
Dublin
$567 Roundtrip, found 6 hours ago
$567
Roundtrip
found 6 hours ago
Select Air Canada flight, departing Tue, Apr 28 from Houston to Dublin, returning Fri, May 8, priced at $567 found 6 hours ago
United
Wed, Nov 19 - Wed, Nov 26
IAH
Houston
DUB
Dublin
$567 Roundtrip, found 2 hours ago
$567
Roundtrip
found 2 hours ago
Select United flight, departing Wed, Nov 19 from Houston to Dublin, returning Wed, Nov 26, priced at $567 found 2 hours ago
Air Canada
Mon, Nov 3 - Wed, Nov 12
IAH
Houston
DUB
Dublin
$569 Roundtrip, just found
$569
Roundtrip
just found
Select Air Canada flight, departing Mon, Nov 3 from Houston to Dublin, returning Wed, Nov 12, priced at $569 just found
American Airlines
Tue, Oct 28 - Tue, Nov 18
IAH
Houston
DUB
Dublin
$576 Roundtrip, found 2 hours ago
$576
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Tue, Oct 28 from Houston to Dublin, returning Tue, Nov 18, priced at $576 found 2 hours ago
British Airways
Mon, Nov 3 - Wed, Nov 12
IAH
Houston
DUB
Dublin
$582 Roundtrip, just found
$582
Roundtrip
just found
Select British Airways flight, departing Mon, Nov 3 from Houston to Dublin, returning Wed, Nov 12, priced at $582 just found
Iberia
Tue, Apr 28 - Fri, May 8
IAH
Houston
DUB
Dublin
$587 Roundtrip, found 6 hours ago
$587
Roundtrip
found 6 hours ago
Select Iberia flight, departing Tue, Apr 28 from Houston to Dublin, returning Fri, May 8, priced at $587 found 6 hours ago
Lufthansa
Wed, Nov 5 - Wed, Nov 12
IAH
Houston
DUB
Dublin
$596 Roundtrip, found 1 hour ago
$596
Roundtrip
found 1 hour ago
Select Lufthansa flight, departing Wed, Nov 5 from Houston to Dublin, returning Wed, Nov 12, priced at $596 found 1 hour ago
JetBlue Airways
Tue, Sep 2 - Tue, Sep 23
IAH
Houston
DUB
Dublin
$614 Roundtrip, found 3 hours ago
$614
Roundtrip
found 3 hours ago
Select JetBlue Airways flight, departing Tue, Sep 2 from Houston to Dublin, returning Tue, Sep 23, priced at $614 found 3 hours ago

Find the cheapest month to fly from Houston (IAH) to Dublin (DUB)

November is typically the cheapest month to fly

From $508 - $1,177 per traveler.

Graph displaying average flight prices per month

Alternative airports near Dublin

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Dublin Airport DUB. Cheapest and Closest option available. Average driving time to city center is 14 minutes. Flights from $709
DUB
Dublin Airport
CheapestClosest
Average driving time to city center14 min
Flights from $709
Flights from Houston (IAH) to Dublin (DUB)
Origin airport
George Bush Intercontinental
Destination airport
Dublin
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, JetBlue Airways, KLM, Lufthansa, Turkish Airlines, United, WestJet
Roundtrip price
$560
Distance
4548 mi

Houston to Dublin Flights

The cheapest times to fly from Houston to Dublin

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 Dublin are during the month of May. You can find some of the cheapest flights from Houston to Dublin with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Houston to Dublin

Sunday is one of the best days to book for cheap flights from Houston to Dublin: 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 Dublin

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 Dublin in 2025. You can also book with separate airlines for your outbound and return journeys, from $354 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 Dublin 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 Dublin 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 Dublin Airport (DUB) cost?
Discover the latest flight deals from IAH to DUB by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from IAH to DUB?
The cheapest flights from IAH to DUB are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from IAH to DUB?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from IAH to DUB. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from George Bush Intercontinental Airport (IAH) to Dublin Airport (DUB)?
Nonstop flights from George Bush Intercontinental Airport (IAH) to Dublin Airport (DUB) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from IAH to DUB?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can change depending on a range of factors, including the time of year and airline.*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 Dublin Airport (DUB)?
Choose a flight from George Bush Intercontinental Airport (IAH) to Dublin Airport (DUB) that takes off before 3 PM to reduce the risk of cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**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 Dublin Airport (DUB) last-minute?
Waiting until right before your break to book a flight from IAH to DUB often results in higher prices. While you may come across some last-minute deals, there's no guarantee. Be flexible with your travel plans to maximize your chances of landing a bargain.
Is it cheaper to book an IAH to DUB flight and hotel package?
Opting for an IAH to DUB flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our impressive range of accommodations and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from George Bush Intercontinental Airport (IAH) to Dublin Airport (DUB)?
Typically, it's possible to reschedule or cancel your IAH to DUB flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

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Houston nearby Airports

Houston

George Bush Intercontinental to Dublin
$559.81
William P. Hobby to Dublin
$586.11
*Available to One Key members.