Cheap Flights to Sullivan

View ₩185,000 flight on Sat, Dec 13, 2025Opens in a new window

Popular airlines to Sullivan

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How much is the cheapest flight to Sullivan?

Prices were available within the past 7 days and start at ₩185,000 for one-way flights and ₩330,200 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Aug 18 - Mon, Aug 25
SEA
Seattle
STL
St. Louis
₩330,200 Roundtrip, found 4 days ago
₩330,200
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Aug 18 from Seattle to St. Louis, returning Mon, Aug 25, priced at ₩330,200 found 4 days ago
American Airlines
Thu, Oct 23 - Thu, Oct 30
SEA
Seattle
STL
St. Louis
₩379,100 Roundtrip, found 4 days ago
₩379,100
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Oct 23 from Seattle to St. Louis, returning Thu, Oct 30, priced at ₩379,100 found 4 days ago
United
Mon, Aug 18 - Mon, Aug 25
SEA
Seattle
STL
St. Louis
₩391,400 Roundtrip, found 4 days ago
₩391,400
Roundtrip
found 4 days ago
Select United flight, departing Mon, Aug 18 from Seattle to St. Louis, returning Mon, Aug 25, priced at ₩391,400 found 4 days ago
Korean Air
Thu, Nov 13 - Sun, Nov 23
ICN
Seoul
STL
St. Louis
₩1,054,213 Roundtrip, found 2 days ago
₩1,054,213
Roundtrip
found 2 days ago
Select Korean Air flight, departing Thu, Nov 13 from Seoul to St. Louis, returning Sun, Nov 23, priced at ₩1,054,213 found 2 days ago
Japan Airlines
Thu, Nov 13 - Sun, Nov 23
GMP
Seoul
STL
St. Louis
₩1,354,800 Roundtrip, found 2 days ago
₩1,354,800
Roundtrip
found 2 days ago
Select Japan Airlines flight, departing Thu, Nov 13 from Seoul to St. Louis, returning Sun, Nov 23, priced at ₩1,354,800 found 2 days ago

Find the cheapest month to fly from Columbus (CMH) to St. Louis (STL)

August is typically the cheapest month to fly

From ₩238,390 - ₩968,216 per traveler.

Graph displaying average flight prices per month

Searching for cheap flights to Sullivan? No travel company presents more choices than Expedia if you're looking to compare flights to Sullivan. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Missouri. Expedia provides the cheapest flights to many destinations in Missouri and you may find even greater savings if you combine your flight with a hotel stay in Sullivan.

Frequently asked questions

What is the name of Sullivan's airport?
Sullivan is served by a single airport, Lambert-St. Louis Intl. Airport (STL).
What airport is best to fly into Sullivan?
Step through the exit doors of St. Louis Lambert International Airport and your Sullivan getaway will have begun! The city's main airport, it's located 88 kilometers from the downtown streets.
How many airlines fly to Sullivan?
There are a total of 12 air carriers connecting Sullivan to 64 airports across the world.
Which airlines fly to Sullivan?
United Airlines and American Airlines fly often into Sullivan. Hopping on a United Airlines flight from Chicago is one of the most preferred options to get there.
How many nonstop flights are there to Sullivan?
Flying to a new place is much more fun when there aren't any stopovers to slow you down. If you're traveling to Sullivan, the great news is that there are 1,319 nonstop flights every week.
Where are the most popular flights to Sullivan departing from?
Travelers often jet off from Denver, Dallas and Chicago airports when going to Sullivan.
How long is the flight to Sullivan Airport?
Where you depart from determines how much of the in-flight entertainment you'll get to see. From Chicago to Sullivan, the average flight time is 1 hour and 15 minutes. From Queens Village it's more or less 2 hours and 51 minutes, and from Denver it's 1 hour and 59 minutes.
How to book the cheapest flight to Sullivan?
Don't leave locking in your flight to Sullivan until the very last minute. That's one trick savvy jet-setters use to get the best prices. Booking in advance means more options and more affordable flights. Don't stop there, though. Do some research and see if there are a couple of airports at your destination. Fares often differ depending on the airport you use. Remember to compare fares across airlines too. And finally, don't forget that the early bird catches the worm. Know what a typical airfare costs and have your credit card ready to secure your ticket as soon as you spot an unbeatable bargain. The best deals don't last long.
How to survive the flight to Sullivan?
If you're not prepared, air travel can be tough. But there's no need to worry. Follow these helpful hints and enjoy a pleasant start to your vacation in Sullivan.What to pack in your hand luggage:
  • The secret to having a hassle-free travel experience is to be prepared. So, let's start with the essentials: passport, travel docs, bank cards and medications. Next, bring on board items that'll help keep you entertained, like your laptop or a good read. It's also wise to pack your chargers, a neck pillow and a pair of earplugs. And of course, don't forget to toss in toiletries like a toothbrush, facial wipes and a spare set of clothes.

Do not pack the following items in your hand luggage:
  • Double-check that you don't have a pocket knife hiding in one of the compartments of your carry-on luggage. Other restricted items include explosive or flammable goods, such as aerosol cans and fuel, and liquids and gels in containers larger than 3.4 ounces (100 milliliters).

What to wear on a flight:
  • The best way to ensure a comfortable flight is as simple as the clothes you wear. Prepare yourself for varying temperatures by layering up. That way you'll stay nice and warm if the cabin gets chilly. Shoes like high heels and sandals are best left in your checked suitcase. Even though they may be your favorites, go for flat, closed-toed footwear like sneakers. Your feet will thank you later.
  • The result of sustained periods of inactivity, DVT (deep vein thrombosis) is a condition that can affect passengers on long-haul flights. But the great news is there are proven ways to reduce your risk of developing it. Stay well hydrated, get up and walk around the cabin as often as you can and wear compression tights or socks.

How to get through airport security fast when flying to Sullivan?
The trick is to be prepared before you arrive at airport security. That way, you'll be hopping onto that plane to Sullivan before you know it. Follow these tips and get your vacation off to a spectacular start:
  • Security personnel first need to make sure that you have a valid ID and boarding pass before you can proceed any further. Have them within easy reach, ready for inspection.
  • The X-ray machine comes next. Remove anything metal on you that is likely to beep. This includes items like earphones or headphones, as well as heavy coats or jackets. They'll all need to go on the X-ray conveyor belt.
  • For just a few moments, you'll have to unplug from the digital world. Your phone, tablet and any other electronics also need to go through the scanner.
  • Any gels or liquids, such as toothpaste or perfume, that you want to take on board must be no larger than 3.4 ounces (100 milliliters). They must also all fit inside a quart-size (one liter), clear zip-close bag.
  • Slip-on shoes are a good footwear choice as you're less likely to have to remove them when passing through security. Safety boots and other heavy shoes are often subjected to additional screening.
  • Take all prohibited items out of your carry-on bag. If you have any sharp objects like a pocket knife or tools, put them in your checked luggage. They won't be allowed on board and will be confiscated.

Flights to Sullivan information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Roundtrip price
₩330,200

Trending flights to Sullivan

Prices were available within the past 7 days and start at ₩185,000 for one-way flights and ₩330,200 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Oct 13 - Mon, Dec 29
ICN
Seoul
STL
St. Louis
₩928,500 Roundtrip, found 2 days ago
₩928,500
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Oct 13 from Seoul to St. Louis, returning Mon, Dec 29, priced at ₩928,500 found 2 days ago
*Available to Expedia members.