IAH - SNN

$624 Find Cheap Flights from Houston George Bush Airport to Shannon

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from George Bush Intcntl to Shannon departing on 4/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Shannon

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Houston to Shannon, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Houston to Shannon, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$624
United Airlines
Wed 4/22Fri 5/1
IAH - SNN • 1 stop
Cheapest one-way
$4,491
Aer Lingus
Mon 6/29
IAH - SNN • 1 stop
Top airlines
United Airlines
Cheapest • from $624 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
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Booking Insights
Flight Deals

Cheap Flights from George Bush Intcntl to Shannon (IAH-SNN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from George Bush Intcntl to Shannon that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from George Bush Intcntl to Shannon

Wed, Apr 22 - Fri, May 1
United Airlines Logo
4:30 pm - 10:15 am
IAH
-
SNN
11h 45m
1 stop
United Airlines Logo
12:30 pm - 8:49 pm
SNN
-
IAH
14h 19m
1 stop
$624United Airlines
Wed, Apr 22 - Fri, May 1
United Airlines Logo
11:55 am - 10:15 am
IAH
-
SNN
16h 20m
2 stops
United Airlines Logo
12:30 pm - 1:49 am
SNN
-
IAH
19h 19m
2 stops
$629United Airlines
Wed, Apr 29 - Mon, May 11
United Airlines Logo
9:57 am - 10:15 am
IAH
-
SNN
18h 18m
2 stops
United Airlines Logo
12:30 pm - 10:34 pm
SNN
-
IAH
16h 04m
2 stops
$679United Airlines
Wed, Apr 29 - Mon, May 11
United Airlines Logo
2:43 pm - 10:15 am
IAH
-
SNN
13h 32m
1 stop
United Airlines Logo
12:30 pm - 7:09 pm
SNN
-
IAH
12h 39m
1 stop
$719United Airlines
Mon, Mar 16 - Mon, Mar 23
Multiple Airlines Logo
10:45 pm - 4:45 pm
IAH
-
SNN
13h 00m
1 stop
Multiple Airlines Logo
8:05 pm - 3:05 pm
SNN
-
IAH
24h 00m
1 stop
$768Multiple Airlines
Mon, Mar 16 - Mon, Mar 23
British Airways Logo
6:40 pm - 7:25 pm
IAH
-
SNN
19h 45m
2 stops
British Airways Logo
5:30 pm - 3:05 pm
SNN
-
IAH
26h 35m
1 stop
$792British Airways
Mon, Mar 2 - Mon, Mar 16
Air Canada Logo
7:10 am - 11:30 am
IAH
-
SNN
22h 20m
2 stops
Air Canada Logo
5:30 pm - 9:44 pm
SNN
-
IAH
57h 14m
2 stops
$794Air Canada
Mon, Mar 16 - Mon, Mar 23
Multiple Airlines Logo
7:10 am - 11:30 am
IAH
-
SNN
23h 20m
2 stops
Multiple Airlines Logo
5:30 pm - 11:09 am
SNN
-
IAH
46h 39m
2 stops
$802Multiple Airlines
Mon, Mar 2 - Mon, Mar 16
British Airways Logo
4:36 pm - 4:45 pm
IAH
-
SNN
18h 09m
2 stops
British Airways Logo
5:30 pm - 3:05 pm
SNN
-
IAH
26h 35m
1 stop
$810British Airways
Thu, Apr 2 - Mon, Apr 6
Multiple Airlines Logo
3:40 pm - 4:10 pm
IAH
-
SNN
18h 30m
1 stop
Multiple Airlines Logo
9:15 pm - 1:25 pm
SNN
-
IAH
22h 10m
1 stop
$816Multiple Airlines
Booking Insights

KAYAK's insights & trends for George Bush Intcntl to Shannon flights

Get data-powered insights and trends into flights from George Bush Intcntl to Shannon to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Houston George Bush Airport to Shannon?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Houston George Bush Airport to Shannon were found on United Airlines ($624) and British Airways ($792).

Good to know

Cheapest flight$624
Flight from Houston George Bush Airport to Shannon

When to book flights from George Bush Intcntl to Shannon

Are your dates flexible? Find out the best times to travel from George Bush Intcntl to Shannon based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Houston George Bush Airport to Shannon flights

  • What is the cheapest flight from Houston George Bush Intcntl Airport to Shannon?

    In the last 3 days, the lowest price for a flight from Houston George Bush Intcntl Airport to Shannon was $4,491 for a one-way ticket and $624 for a round-trip.

  • Do I need a passport to fly between Houston George Bush Airport and Shannon?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Houston George Bush Airport and on arrival in Shannon.

  • Which aircraft models fly most regularly from Houston George Bush Airport to Shannon?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Houston George Bush Airport to Shannon?

    oneworld, and Star Alliance are the airline alliances operating flights between Houston George Bush Airport and Shannon, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Houston to Shannon, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Houston to Shannon are United Airlines and American Airlines. With an average price for the route of $912 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $853 and an overall rating of 7.2.

  • How does KAYAK find such low prices on flights from Houston George Bush Airport to Shannon?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Houston George Bush Airport to Shannon.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Houston George Bush Airport to Shannon?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Shannon from Houston George Bush Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Houston George Bush Airport to Shannon?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Shannon with an airline and back to Houston George Bush Airport with another airline. Booking your flights between Houston George Bush Airport and SNN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Houston George Bush Airport to Shannon?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Shannon from Houston George Bush Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from George Bush Intcntl to Shannon

 
See real verified KAYAK customer reviews for airlines flying from Houston to Shannon. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from George Bush Intcntl to Shannon? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9222 reviews
6.6Food
8.1Crew
7.7Boarding
7.3Comfort
7.1Entertainment
Airline reviews

I like flying first class, and United has a nice one

10.0 ExcellentMitchell, Jan 2026
IAH - BOS
Read more United Airlines reviews

I like flying first class, and United has a nice one

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Seats had less pitch than a regional jet. Food was OK. Have to buy alcohol on US based carriers flying international. Boarding was a mess. Did not have bags but overhead space was gone quick. Would like to see the airlines enforce the one bag over and one bag under policy

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Crew was excellent. This was a relatively long flight though and had very little leg room, and no entertainment.

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight was delayed and missed my connection Lufthansa didn’t respond.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

United could have one single once of customer service. No human United employee would help me with the invalid mileage plus number, they said I had to speak with the computer.

Update to handle the delay was very bad, crews no smiles or welcome or thanks. Don’t care attitude

No gates avail at DFW so our incoming had to wait 30 mins for a plane to push back because they Had mechanical. We boarded 90 mins delayed and then we had a mechanical. Come on American…do better. Also at my seat the tray table had not been cleaned. Floor had not been cleaned. But captain and flight Att were very picture and apologetic.

Flight was canceled. I asked to be rerouted to OKC and then took an Uber.

AA did not allow to board a flight because my connecting flight from DFW had been canceled. I got on another flight to another city. No service on the plane and I did not use their entertainment system.

I booked an aisle seat and was given a middle. At 6'4" 230lbs, it is not ideal to fly in the middle row for myself and passengers.

Concern Regarding Significant Gate Delay and Jet Bridge Issue Dear Customer Relations Team, I am writing to express my disappointment with the experience I had on my recent flight AA 2414 on Sunday January 18, 2026. What should have been a routine departure turned into a frustrating and avoidable delay due to an issue with the jet bridge at the gate. As a result, the flight was delayed by approximately 90 minutes while multiple gate changes were attempted. The lack of clear communication during this period made the situation even more challenging. Passengers were left uncertain about the cause of the delay, the expected timeline, and the next steps. This not only disrupted travel plans but also created unnecessary stress for everyone on board. I understand that operational issues can arise, but a malfunctioning jet bridge and the resulting extended delay suggest an area where procedures or equipment maintenance may need attention. I hope you will review this incident to prevent similar disruptions in the future. I would appreciate acknowledgment of this concern and consideration of appropriate compensation for the inconvenience and lost time caused by this delay. Thank you for taking the time to review my experience. I look forward to hearing from you. Sincerely, Dion Dillard

They made me pay $40 to check a bag that was listed as free when I bought my ticket. Then before boarding they offered to check any bags free.

The seat cushions were very worn so they were extremely uncomfortable.

Delayed, no updates, had a rewards number but was not working

AA should improve their in air internet & entertainment options. Seems unreasonable to charge $20/hr and should have some form of free connections. The entertainment options are also pretty limited, movies are outdated and the series only show 3-5 episodes.

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