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$423+ Cheap flights from Ireland to Houston

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — HOU
Jun 15 — Jun 221
Mon 6/15
Mon 6/22
1 adult, Economy
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Cheap flight deals from Ireland to Houston

Cheapest flights from Ireland to Houston
Explore the most affordable flight options available from Ireland to Houston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 16, 2026.

This SmartFares deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2310:40 am
DUB
-
IAH
1 stop31h 25m
JetBlue
Wed 10/147:05 pm
IAH
-
DUB
1 stop31h 15m
JetBlue
Deal found 5/14$632
This SmartFares deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/910:40 am
DUB
-
IAH
1 stop31h 52m
JetBlue
Wed 7/151:27 pm
IAH
-
DUB
1 stop12h 53m
JetBlue
Deal found 5/15$634
This Justfly.com deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1310:40 am
DUB
-
IAH
1 stop31h 25m
JetBlue
Sun 10/187:05 pm
IAH
-
DUB
1 stop31h 15m
JetBlue
Deal found 5/16$716
This SmartFares deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/14:30 pm
DUB
-
IAH
1 stop26h 40m
Turkish Airlines
Sun 12/69:05 pm
IAH
-
DUB
1 stop19h 05m
Turkish Airlines
Deal found 5/14$750
This SmartFares deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2911:30 am
DUB
-
IAH
1 stop29h 36m
JetBlue
Tue 6/211:56 am
IAH
-
DUB
1 stop15h 04m
JetBlue
Deal found 5/13$778
This Delta deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/235:55 am
DUB
-
HOU
2 stops22h 31m
Delta
Fri 6/51:06 pm
HOU
-
DUB
2 stops20h 19m
Delta
Deal found 5/16$878
This Delta deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/228:55 am
DUB
-
HOU
2 stops30h 37m
Delta
Thu 6/41:06 pm
HOU
-
DUB
2 stops20h 19m
Delta
Deal found 5/15$882
This KLM deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2810:50 am
ORK
-
IAH
1 stop32h 30m
KLM
Mon 6/15:54 pm
IAH
-
ORK
2 stops16h 41m
KLM
Deal found 5/12$885
This Delta deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/48:55 am
DUB
-
HOU
2 stops30h 37m
Delta
Sat 6/1310:16 am
HOU
-
DUB
1 stop16h 29m
Delta
Deal found 5/15$885
This Delta deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/165:55 am
DUB
-
HOU
2 stops21h 48m
Delta
Tue 6/301:10 pm
HOU
-
DUB
2 stops20h 15m
Delta
Deal found 5/13$886
This Delta deal was found by Cheapflights users on 5/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/248:55 am
DUB
-
HOU
2 stops19h 31m
Delta
Tue 6/91:10 pm
HOU
-
DUB
1 stop13h 35m
Delta
Deal found 5/14$887
This Delta deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/95:55 am
DUB
-
HOU
2 stops21h 48m
Delta
Tue 6/166:03 am
HOU
-
DUB
1 stop20h 42m
Delta
Deal found 5/12$891

Find flight deals from Ireland to Houston

Keep the following information in mind while searching for Ireland to Houston flight deals. Data was last updated May 16, 2026.

Round-trip from

$632
(SmartFares)

One-way from

$423
(Kiwi.com)

Popular in

May

Cheapest in

November

Average price

$1,047
From Ireland to Houston
Search Deals
One-way flight from Ireland to Houston
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($7 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ireland to Houston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 16, 2026.
Use the filters below to find and compare flights from Ireland to Houston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

DublinHouston

DUB - IAH

DUBIAH

Dublin

Tue 6/16

5:55 am-1:20 pm

1 stop13h 25m

Houston George Bush Intcntl

Tue 6/23

2:38 pm-7:55 am

1 stop11h 17m

$880

DublinHouston

DUB - IAH

DUBIAH

Dublin

Tue 6/16

5:55 am-1:20 pm

1 stop13h 25m

Houston George Bush Intcntl

Tue 6/23

3:25 pm-4:40 pm

2 stops19h 15m

$882

DublinHouston

DUB - HOU

DUBHOU

Dublin

Tue 6/16

5:55 am-9:43 pm

2 stops21h 48m

Houston Hobby

Tue 6/23

1:10 pm-8:45 am

1 stop13h 35m

$885

CorkHouston

ORK - IAH

ORKIAH

Cork

Thu 5/28

10:50 am-1:20 pm

1 stop32h 30m

Houston George Bush Intcntl

Mon 6/1

3:25 pm-4:35 pm

1 stop19h 10m

$885

DublinHouston

DUB - IAH

DUBIAH

Dublin

Fri 5/29

5:55 am-9:33 pm

2 stops21h 38m

Houston George Bush Intcntl

Tue 6/2

3:25 pm-3:25 pm

2 stops18h 00m

$886

DublinHouston

DUB - HOU

DUBHOU

Dublin

Tue 6/16

5:55 am-9:43 pm

2 stops21h 48m

Houston Hobby

Tue 6/30

1:10 pm-3:25 pm

2 stops20h 15m

$886

DublinHouston

DUB - HOU

DUBHOU

Dublin

Mon 6/15

5:55 am-9:43 pm

2 stops21h 48m

Houston Hobby

Mon 6/22

6:03 am-10:00 am

2 stops21h 57m

$891

DublinHouston

DUB - HOU

DUBHOU

Dublin

Mon 6/15

11:00 am-9:43 pm

1 stop16h 43m

Houston Hobby

Mon 6/22

1:10 pm-8:45 am

1 stop13h 35m

$892

DublinHouston

DUB - HOU

DUBHOU

Dublin

Tue 6/16

11:00 am-9:43 pm

1 stop16h 43m

Houston Hobby

Tue 6/23

1:10 pm-8:45 am

1 stop13h 35m

$895

ShannonHouston

SNN - HOU

SNNHOU

Shannon

Fri 5/29

1:05 pm-9:32 am

2 stops26h 27m

Houston Hobby

Tue 6/2

6:00 am-11:10 am

2 stops23h 10m

$895

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/16

Showing 1-10 of 50 resultsSorted by cheapest first
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Best time to book a flight from Ireland to Houston

Have a flexible travel schedule? Discover the best time to fly to Houston from Ireland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ireland to Houston

What is the cheapest month to book a flight from Ireland to Houston?

Currently, November is the cheapest month in which you can book a flight from Ireland to Houston (average of $657). Flying from Ireland to Houston in September is currently the most expensive (average of $881). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Ireland to Houston. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ireland to Houston?

    For as low as $880, KLM can have you in Houston from Ireland in 13h 25m. The distance from Ireland to Houston is about 4545 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Ireland to Houston one-way?

    The cheapest airlines for a one-way flight from Ireland to Houston are Aer Lingus ($586), Iberia ($692), and American Airlines ($727).

  • What are the most popular routes from Ireland to Houston?

    The most popular flight routes from Ireland to Houston are Dublin - Houston Hobby, Dublin - Houston George Bush Intcntl and Shannon - Houston Hobby.

  • Can I find deals for flights from Ireland to Houston that include hotel bookings?

    Yes. In addition to deals on Ireland to Houston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ireland to Houston?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ireland to Houston.

  • Can I find deals for business class flights from Ireland to Houston?

    Yes. Cheapflights offers flight deals from Ireland to Houston by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ireland to Houston?

    Currently, November is the cheapest month in which you can book a flight from Ireland to Houston (average of $657). Flying from Ireland to Houston in September is currently the most expensive (average of $881). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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