Cheap Flights from Houston (IAH) to Ulsan (USN)

Popular airlines from George Bush Intercontinental Airport (IAH) to Ulsan (USN)

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Frequently asked questions

How much does a flight from George Bush Intercontinental Airport (IAH) to Ulsan Airport (USN) cost?
Snag a cheap one-way flight or cheap return flight from George Bush Intercontinental Airport (IAH) to Ulsan Airport (USN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from George Bush Intercontinental Airport (IAH) to Ulsan Airport (USN)?
The cheapest month to fly from IAH to USN is , when demand is low. Off-peak months are generally when airlines offer lower prices between these airports.
What is the cheapest airline that flies from George Bush Intercontinental Airport (IAH) to Ulsan Airport (USN)?
To find the cheapest airline flying from IAH to USN, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from George Bush Intercontinental Airport (IAH) to Ulsan Airport (USN)?
There are no daily direct flights available from George Bush Intercontinental Airport (IAH) to Ulsan Airport (USN). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from IAH to USN?
You'll generally find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*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 Ulsan Airport (USN)?
To touch down at Ulsan Airport (USN) without delays, choose a flight that leaves George Bush Intercontinental Airport (IAH) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**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 Ulsan Airport (USN) last-minute?
Last-minute fares from IAH to USN are typically more expensive. To lock in the lowest rates, start looking for flights ahead of time. That said, if you're flexible with your travel dates, you may land a cheap ticket right before your trip.
Is it cheaper to book an IAH to USN flight and hotel package?
You can save money by securing an IAH to USN flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. Once you've selected your ideal accommodations and flights, consider adding extras like car rentals, activities and tours.
Can I cancel or change the date of my flight from George Bush Intercontinental Airport (IAH) to Ulsan Airport (USN)?
If you booked your IAH to USN flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more information.

Travel information

Origin airport
George Bush Intercontinental
Destination airport
Ulsan
Distance
7054 mi

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Houston to Ulsan Flights

The cheapest times to fly from Houston to Ulsan

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

 

The best time to book a flight from Houston to Ulsan

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

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 Ulsan in 2026. You can also book with separate airlines for your outbound and return journeys, from 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 Ulsan 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 Ulsan 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.

 

Houston to Ulsan Flights

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