Cheap Flights to Sullivan County from ₩1,545,800

View ₩1,545,800 flight on Fri, May 29, 2026Opens in a new window

Popular airlines to Sullivan County

  • American Airlines

  • Delta

  • Breeze Airways

  • KLM

  • Air France

  • Virgin Atlantic

  • United

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How much is the cheapest flight to Sullivan County?

Prices were available within the past 7 days and start at ₩1,545,800 for one-way flights and ₩2,669,500 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, May 18 - Wed, May 20
ICN
Seoul
TRI
Tri-Cities
₩2,669,500 Roundtrip, found 20 hours ago
₩2,669,500
Roundtrip
found 20 hours ago
Select Delta flight, departing Mon, May 18 from Seoul to Tri-Cities, returning Wed, May 20, priced at ₩2,669,500 found 20 hours ago
Delta
Mon, May 18 - Wed, May 27
ICN
Seoul
TRI
Tri-Cities
₩2,732,500 Roundtrip, found 20 hours ago
₩2,732,500
Roundtrip
found 20 hours ago
Select Delta flight, departing Mon, May 18 from Seoul to Tri-Cities, returning Wed, May 27, priced at ₩2,732,500 found 20 hours ago
Delta
Sun, May 17 - Wed, May 20
ICN
Seoul
TRI
Tri-Cities
₩2,744,500 Roundtrip, found 20 hours ago
₩2,744,500
Roundtrip
found 20 hours ago
Select Delta flight, departing Sun, May 17 from Seoul to Tri-Cities, returning Wed, May 20, priced at ₩2,744,500 found 20 hours ago
Delta
Sat, May 23 - Tue, May 26
ICN
Seoul
TRI
Tri-Cities
₩2,807,500 Roundtrip, found 20 hours ago
₩2,807,500
Roundtrip
found 20 hours ago
Select Delta flight, departing Sat, May 23 from Seoul to Tri-Cities, returning Tue, May 26, priced at ₩2,807,500 found 20 hours ago
Delta
Sat, May 23 - Wed, May 27
ICN
Seoul
TRI
Tri-Cities
₩2,870,500 Roundtrip, found 20 hours ago
₩2,870,500
Roundtrip
found 20 hours ago
Select Delta flight, departing Sat, May 23 from Seoul to Tri-Cities, returning Wed, May 27, priced at ₩2,870,500 found 20 hours ago
Delta
Mon, May 18 - Tue, May 19
ICN
Seoul
TRI
Tri-Cities
₩2,895,500 Roundtrip, found 20 hours ago
₩2,895,500
Roundtrip
found 20 hours ago
Select Delta flight, departing Mon, May 18 from Seoul to Tri-Cities, returning Tue, May 19, priced at ₩2,895,500 found 20 hours ago
WestJet
Fri, May 29 - Tue, Jun 2
ICN
Seoul
TRI
Tri-Cities
₩2,985,400 Roundtrip, found 1 day ago
₩2,985,400
Roundtrip
found 1 day ago
Select WestJet flight, departing Fri, May 29 from Seoul to Tri-Cities, returning Tue, Jun 2, priced at ₩2,985,400 found 1 day ago
American Airlines
Fri, May 29 - Tue, Jun 2
ICN
Seoul
TRI
Tri-Cities
₩3,029,300 Roundtrip, found 1 day ago
₩3,029,300
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, May 29 from Seoul to Tri-Cities, returning Tue, Jun 2, priced at ₩3,029,300 found 1 day ago
Korean Air
Fri, May 29 - Tue, Jun 2
ICN
Seoul
TRI
Tri-Cities
₩3,332,500 Roundtrip, found 1 day ago
₩3,332,500
Roundtrip
found 1 day ago
Select Korean Air flight, departing Fri, May 29 from Seoul to Tri-Cities, returning Tue, Jun 2, priced at ₩3,332,500 found 1 day ago
Qatar Airways
Fri, May 29 - Tue, Jun 2
ICN
Seoul
TRI
Tri-Cities
₩8,004,200 Roundtrip, found 1 day ago
₩8,004,200
Roundtrip
found 1 day ago
Select Qatar Airways flight, departing Fri, May 29 from Seoul to Tri-Cities, returning Tue, Jun 2, priced at ₩8,004,200 found 1 day ago

Trending flights to Sullivan County

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, May 18 - Wed, May 20
ICN
Seoul
TRI
Tri-Cities
₩2,669,500 Roundtrip, found 20 hours ago
₩2,669,500
Roundtrip
found 20 hours ago
Select Delta flight, departing Mon, May 18 from Seoul to Tri-Cities, returning Wed, May 20, priced at ₩2,669,500 found 20 hours ago

Frequently asked questions

How do I find cheap flights to Sullivan County that have flexible change policies?
It's as easy as 1-2-3 with Expedia. Firstly, type in your preferred dates and destination and click on "Search." Next step? Check the "No change fee" box directly below the "Flexible change policies" subheading on the top left of your screen. Step 3. Book your flexible and cheap flight to Sullivan County.
Which airlines fly to Sullivan County?
Settle on your vacation dates and then touch down in or near Sullivan County with one of these well-known airlines:

  • American Airlines - 260 flights to or near Sullivan County each month, including 260 flights to Tri-Cities Regional Airport (TRI) per month.
  • Delta Air Lines - 108 flights to or near Sullivan County each month, including 108 flights to Tri-Cities Regional Airport (TRI) per month.
  • Allegiant Air - 17 flights to or near Sullivan County each month, including 17 flights to Tri-Cities Regional Airport (TRI) per month.

How can I find cheap tickets to Sullivan County?
An useful strategy for walking away with cheap tickets is to be flexible with your travel dates. Start by searching for your flight to Sullivan County, then click on the "flexible dates" box for a list of prices for nearby days. Another helpful hint? Book in advance. For an idea of costs, ₩2,669,500 was the lowest price for a flight to Sullivan County in the last seven days.
How much is a flight to Sullivan County?
In the last seven days, return flights to Sullivan County sold for as low as ₩2,669,500 and peaked at ₩8,004,200. For one-way fares taking off from Seoul (ICN), the cheapest seat during this same period was just ₩1,545,800.
What are the most popular airports to fly into in Sullivan County?
The main entryway to Sullivan County, about 385 flights touch down at Tri-Cities Regional Airport (TRI) each month. Keep an eye out for an awesome deal, book your ticket and get ready to discover this sensational region.
When is the cheapest time to fly to Sullivan County?
Departing on a Tuesday, followed by a Monday, is usually the best way to score the cheapest airfare. Avoid weekends if possible, because Saturday is typically the most expensive day. Spend the cash you saved living it up in Sullivan County instead!
How much is a plane ticket to Sullivan County?
In the last seven days, airfares to Sullivan County ranged from ₩2,669,500 to ₩8,004,200.
What is the best time to go to Sullivan County?
March, June and November are the most popular months to explore Kingsport, one of Sullivan County's most fascinating cities. Summer here starts June 20. Average temperatures vary from 60ºF to 85ºF across the season, so consider traveling then if you enjoy warmer weather.
What months are the cheapest to book a flight to Sullivan County?
The ideal month to book well-priced fares to Sullivan County is February. Bear in mind that in the USA, an expensive time to reserve a seat is during the busy month of December.

Book with confidence

About Sullivan County

Expedia offers flights to Sullivan County to meet every traveler's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to Sullivan County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.
About Sullivan County
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