Cheap Flights from St. Louis (STL) to Ulsan (USN)

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save on select hotels after you book a flight*
    trophy illustration

    Find the right fit

    We search billions of combinations of flights to help you find your next adventure
Flights from St. Louis (STL) to Ulsan (USN)
Origin airport
Lambert-St. Louis Intl.
Destination airport
Ulsan
Distance
10733 km

St. Louis to Ulsan Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from St. Louis to Ulsan offer the perfect respite. Not only does exploring Ulsan provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from St. Louis to Ulsan may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from to today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of Ulsan are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to Ulsan more flexibly many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Ulsan is now!

Frequently asked questions

Is it cheaper to buy a plane ticket from Lambert Field to Ulsan Airport (USN) last minute?
When it comes to booking your flights, it's better to be prepared. While you may be able to find a last-minute deal on a Lambert Field to Ulsan Airport flight, tickets usually don't get cheaper as the date of departure nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to book a domestic flight is between 28 – 35 days in advance. For international flights it's between three and four months.
What airports do you fly into for Ulsan from St. Louis?
With Ulsan Airport (USN), Pohang Airport (KPO) and Gimhae Airport (PUS) to select from, getting from St. Louis to Ulsan is a cinch. The city's main terminal, Ulsan Airport (USN), is roughly 10 kilometers north of the downtown area. Apart from ticket prices, consider things like transportation options from the airport and the distance to your hotel before making your decision. Get your Ulsan vacation off to an exciting start by discovering Ulsan Munsu Football Stadium and Hyundai Motors Ulsan Factory.
Can I change the date of my flight from Lambert Field to Ulsan Airport (USN)?
You can easily make changes to your STL to Ulsan Airport (USN) ticket through the Expedia Trips portal. But before you make any amendments, read the ticket rules in your itinerary to find out what the airline will let you do and if fees apply. Some airlines charge a change fee per person, plus any difference in prices. However, if you booked in the last 24 hours, you may be able to cancel for free and book new flights. You can also find your way to our Customer Service portal for further details and to chat with our Virtual Agent.