Cheap Flights to Osan

View ₩27,500 flight on Thu, Apr 2, 2026Opens in a new window

Popular airlines to Osan

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How much is the cheapest flight to Osan?

Prices were available within the past 7 days and start at ₩27,500 for one-way flights and ₩47,000 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Jeju Air with Bag
Thu, Apr 2 - Mon, Jun 29
CJU
Jeju City
GMP
Seoul
₩47,000 Roundtrip, found 6 hours ago
₩47,000
Roundtrip
found 6 hours ago
Select Jeju Air with Bag flight, departing Thu, Apr 2 from Jeju City to Seoul, returning Mon, Jun 29, priced at ₩47,000 found 6 hours ago
T'way Air with baggage
Thu, Apr 2 - Tue, Apr 7
CJU
Jeju City
GMP
Seoul
₩56,200 Roundtrip, found 10 hours ago
₩56,200
Roundtrip
found 10 hours ago
Select T'way Air with baggage flight, departing Thu, Apr 2 from Jeju City to Seoul, returning Tue, Apr 7, priced at ₩56,200 found 10 hours ago
Korean Air
Thu, May 14 - Sun, May 17
USN
Ulsan
GMP
Seoul
₩111,384 Roundtrip, found 5 hours ago
₩111,384
Roundtrip
found 5 hours ago
Select Korean Air flight, departing Thu, May 14 from Ulsan to Seoul, returning Sun, May 17, priced at ₩111,384 found 5 hours ago
Jeju Air
Thu, Jun 25 - Mon, Jun 29
PUS
Busan
GMP
Seoul
₩153,200 Roundtrip, found 3 hours ago
₩153,200
Roundtrip
found 3 hours ago
Select Jeju Air flight, departing Thu, Jun 25 from Busan to Seoul, returning Mon, Jun 29, priced at ₩153,200 found 3 hours ago
Peach
Thu, Jul 2 - Wed, Jul 8
KIX
Osaka
GMP
Seoul
₩194,076 Roundtrip, found 11 hours ago
₩194,076
Roundtrip
found 11 hours ago
Select Peach flight, departing Thu, Jul 2 from Osaka to Seoul, returning Wed, Jul 8, priced at ₩194,076 found 11 hours ago

Find the cheapest month to fly from Columbus (CMH) to Seoul (ICN)

January is typically the cheapest month to fly

From ₩1,101,571 - ₩3,503,222 per traveler.

Frequently asked questions

What is the name of Osan's airport?
Osan has more than one airport, but most travelers choose to touch down at Incheon Intl. Airport (ICN).
What airport is best to fly into Osan?
Disembark the plane at Seoul–Incheon Intl. Airport and you'll be 64 kilometers from the center of town. Gimpo Intl. Airport (GMP) also welcomes many travelers to Osan. It sits 48 kilometers from the city center.
How many airlines fly to Osan?
There are 81 air carriers that service Osan from 160 airports across the globe.
Which airlines fly to Osan?
Osan receives the highest number of flights from Korean Air, Asiana Airlines and Jeju Air with Korean Air being the favorite choice of airline. Jeju City is the most popular city for travelers to jet off from.
How many nonstop flights are there to Osan?
Organizing an amazing Osan getaway is a walk in the park when there are 4,873 direct flights every week to select from.
Where are the most popular flights to Osan departing from?
A large number of flights to Osan take off from Tokyo, Osaka and Busan airports.
How long is the flight to Osan Airport?
If it's Tokyo you're leaving behind, you'll be airborne for around 2 hours and 43 minutes before you touchdown in Osan. Terminal to terminal from Osaka generally takes 2 hours and from Busan, the flight time is 1 hour and 6 minutes.
How to book the cheapest flight to Osan?
We've all come across those fortunate jet-setters who somehow manage to land incredibly cheap airfares wherever they go. Eager to know how to do it for your Osan vacation? Don't leave it until the very last minute to secure your flight. Don't stop there, though. Do some research and find out if there are multiple airports at your destination. Ticket prices often differ depending on which airport you fly into. Don't forget to compare fares across airlines too. Last of all, be prepared to lock in your seat quickly if you stumble on a great deal. It might not be available for long! With a bit of knowledge and a little good fortune, the perfect airfare will be yours.
Do you have any tips for my flight to Osan?
Depending on where you're coming from, your journey to Osan could be a piece of cake or it could drag on forever. Below are some useful tips that will help you start your unforgettable escape on a positive note. What to pack in your hand luggage:

  • Air travel can be a pleasure if you've got all the right things. Firstly, you'll need basic toiletry items, such as deodorant and a toothbrush, a fresh set of clothes and a good read. Next, leave space in your carry-on bag for your mobile phone, a charger, medications and maybe a cozy neck pillow too. Last, but definitely not least, remember to bring your passport, travel papers and your credit cards.

Do not pack the following items in your hand luggage:

  • Make sure you don't have a pocket knife hiding in one of the zippers of your carry-on luggage. Other banned items include explosive or flammable products, such as aerosol cans and bleach, and gels and liquids in containers with a volume of more than 3.4 ounces (100 milliliters).

What to wear on a flight:

  • Your main aim is to feel as comfortable as you can. Opt for slip-on footwear, dress in loose, natural-fiber clothing and don't forget to take a pullover in case you get cold in the cabin.
  • Deep vein thrombosis (DVT), a blood clot condition caused by prolonged inactivity, can be a risk on long-haul flights. Wander around the cabin and stretch your legs or do some simple exercises in your seat to improve your circulation.

How to get through airport security fast when flying to Osan?
The answer is simple — be prepared. We've pulled together some useful tips for a speedy trip through airport security. Look out Osan, here you come:

  • Your boarding pass and travel ID will need to be inspected by airport security. Have them close by so you don't hold up the line.
  • Time to strip down. Well sort of. Your jacket, belt, keys and other contents of your pockets, like your headphones, will need to go on a tray through the X-ray machine. Make the whole process easier by removing them as your turn draws near.
  • All electronic gadgets, including your phone and laptop, must also be scanned separately.
  • Any liquids or gels, such as lip balm or cologne, that you want to bring on board must be no larger than 3.4 ounces (100 milliliters). Also, they all must fit inside a quart-size (one liter), clear zip-close bag.
  • It's also possible you'll be required to take your shoes off to be X-rayed, so wearing lightweight sneakers is always a smart idea.
  • Sharp items like knives are not allowed in the cabin. They'll be confiscated at security, so pack them safely away in your checked luggage.

Book with confidence

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

Travel information

Destination airport
Gimpo Intl.
Destination airport IATA code
GMP
Destination city name
Seoul
Roundtrip price
₩47,000

Trending flights to Osan

Prices were available within the past 7 days and start at ₩27,500 for one-way flights and ₩47,000 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Jeju Air with Bag
Thu, Apr 2 - Mon, Jun 29
CJU
Jeju City
GMP
Seoul
₩47,000 Roundtrip, found 6 hours ago
₩47,000
Roundtrip
found 6 hours ago
Select Jeju Air with Bag flight, departing Thu, Apr 2 from Jeju City to Seoul, returning Mon, Jun 29, priced at ₩47,000 found 6 hours ago
*Available to Expedia members.