$646 Cheap Aer Lingus flights Houston (IAH) to Southampton (SOU)

View $646 flight on Mon, Jan 12, 2026Opens in a new window

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$646 Cheap Aer Lingus flights Houston (IAH) to Southampton (SOU)

Prices were available within the past 7 days and start at $646 for one-way flights and $1,068 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Wed, Oct 15 - Wed, Nov 5
IAH
Houston
SOU
Southampton
$1,068 Roundtrip, found 5 hours ago
$1,068
Roundtrip
found 5 hours ago
Select Aer Lingus flight, departing Wed, Oct 15 from Houston to Southampton, returning Wed, Nov 5, priced at $1,068 found 5 hours ago
Flights from Houston (IAH) to Southampton (SOU)
Origin airport
George Bush Intercontinental
Destination airport
Southampton
Airlines serving
Aer Lingus, Delta, KLM, Virgin Atlantic
Popular airline
Virgin Atlantic
Distance
4801 mi

Frequently asked questions

How much is an Aer Lingus flight from George Bush Intercontinental Airport (IAH) to Southampton Airport (SOU)?
You can find cheap return Aer Lingus flights from $1,068 from IAH to SOU by sorting your results from "Price (lowest to highest)" on Expedia. Or search for bargains from $646 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from IAH to SOU with Aer Lingus?
Aer Lingus flights to Southampton are generally cheaper in the quieter months of January and February. Whether you need a one-way or a return ticket, you could score a better deal then.
What is the cheapest time to book flights from George Bush Intercontinental Airport (IAH) to Southampton Airport (SOU) with Aer Lingus?
Check for Aer Lingus flights from IAH to SOU about one month before you want to go. The most affordable time to book an international flight is usually 18 to 29 days ahead of your travel date when you can save 17% versus booking four to five months in advance. Regardless of fare class or itinerary, the best day of the week to book international airfare is usually Sunday. Friday can be the most expensive. Passengers booking on a Sunday can save 17% on average compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Aer Lingus fly nonstop from George Bush Intercontinental Airport (IAH) to Southampton Airport (SOU)?
To see if there's a direct route from IAH to SOU with Aer Lingus or another airline, check the "Nonstop" box when looking for flights.
What is the earliest Aer Lingus flight from IAH to SOU?
To find the earliest departures from IAH to SOU with Aer Lingus, filter your results by "Early Morning" and "Morning." Choosing an early flight generally means you'll experience fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Aer Lingus fly into in Southampton?
Aer Lingus flights from George Bush Intercontinental Airport (IAH) to Southampton come in to Southampton Airport (SOU). This is the main entry point here.
What kind of luggage can I take on an Aer Lingus flight from George Bush Intercontinental Airport (IAH) to Southampton Airport (SOU)?
For checked luggage, passengers can take 1 checked-in bag weighing up to 50 lb with dimensions not exceeding 62 inches. You can also travel with 1 cabin bag in the cabin when flying standard economy from IAH to SOU with Aer Lingus. This carry-on should weigh less than 22 lb and be no larger than 21 inches x 15 inches x 9 inches. Going over these limits can mean extra charges, so read Aer Lingus's baggage allowance policies before you pack.
Why fly with Aer Lingus from IAH to SOU?
Offering a 4-star airline rating and a rewarding loyalty program, Aer Lingus is a top choice for many passengers heading from IAH to SOU. What's more, if you're an Aer Lingus AerClub and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can go toward future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Aer Lingus flight from George Bush Intercontinental Airport (IAH) to Southampton Airport (SOU)?
It's usually possible to cancel or modify your flight, although there may be additional fees if your booking was made over 24 hours ago. Need to keep your options open? Apply the "No cancel fee" and "Changes included" filters to find flights that won't penalize you if you have to adjust your plans. To update your booking, head to "Trips," select your flight and click on "Manage Booking" for more details.

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*Available to One Key members.