Flight Destinations in Sullivan County

View ₹28,248 flight on Sat, 20 Jun 2026Opens in a new window

Popular airlines to Sullivan County

  • American Airlines

  • Delta

  • United

  • Breeze Airways

  • Qatar Airways

  • KLM

  • Virgin Atlantic

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Cheap round-trip flights to Sullivan County

Prices were available within the past 7 days and start at ₹28,248 for one-way flights and ₹25,601 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 24 Mar - Tue, 7 Apr
BOS
Boston
TRI
Tri-Cities
₹25,601 Return, found 8 hours ago
₹25,601
Return
found 8 hours ago
Select Delta flight, departing Tue, 24 Mar from Boston to Tri-Cities, returning Tue, 7 Apr, priced at ₹25,601 found 8 hours ago
Delta
Tue, 31 Mar - Fri, 17 Apr
BOS
Boston
TRI
Tri-Cities
₹26,982 Return, found 8 hours ago
₹26,982
Return
found 8 hours ago
Select Delta flight, departing Tue, 31 Mar from Boston to Tri-Cities, returning Fri, 17 Apr, priced at ₹26,982 found 8 hours ago
Delta
Sat, 4 Apr - Fri, 17 Apr
BOS
Boston
TRI
Tri-Cities
₹28,364 Return, found 8 hours ago
₹28,364
Return
found 8 hours ago
Select Delta flight, departing Sat, 4 Apr from Boston to Tri-Cities, returning Fri, 17 Apr, priced at ₹28,364 found 8 hours ago
Delta
Fri, 3 Apr - Tue, 14 Apr
BOS
Boston
TRI
Tri-Cities
₹30,476 Return, found 8 hours ago
₹30,476
Return
found 8 hours ago
Select Delta flight, departing Fri, 3 Apr from Boston to Tri-Cities, returning Tue, 14 Apr, priced at ₹30,476 found 8 hours ago
Delta
Sun, 22 Mar - Tue, 7 Apr
BOS
Boston
TRI
Tri-Cities
₹30,933 Return, found 8 hours ago
₹30,933
Return
found 8 hours ago
Select Delta flight, departing Sun, 22 Mar from Boston to Tri-Cities, returning Tue, 7 Apr, priced at ₹30,933 found 8 hours ago
Delta
Tue, 10 Mar - Mon, 23 Mar
BOS
Boston
TRI
Tri-Cities
₹30,938 Return, found 8 hours ago
₹30,938
Return
found 8 hours ago
Select Delta flight, departing Tue, 10 Mar from Boston to Tri-Cities, returning Mon, 23 Mar, priced at ₹30,938 found 8 hours ago
Delta
Tue, 17 Mar - Thu, 2 Apr
BOS
Boston
TRI
Tri-Cities
₹31,121 Return, found 8 hours ago
₹31,121
Return
found 8 hours ago
Select Delta flight, departing Tue, 17 Mar from Boston to Tri-Cities, returning Thu, 2 Apr, priced at ₹31,121 found 8 hours ago
American Airlines
Sun, 22 Feb - Wed, 11 Mar
BOS
Boston
TRI
Tri-Cities
₹32,040 Return, found 1 day ago
₹32,040
Return
found 1 day ago
Select American Airlines flight, departing Sun, 22 Feb from Boston to Tri-Cities, returning Wed, 11 Mar, priced at ₹32,040 found 1 day ago
United
Tue, 23 Jun - Sun, 28 Jun
BOS
Boston
TRI
Tri-Cities
₹40,683 Return, found 1 day ago
₹40,683
Return
found 1 day ago
Select United flight, departing Tue, 23 Jun from Boston to Tri-Cities, returning Sun, 28 Jun, priced at ₹40,683 found 1 day ago
Qatar Airways
Thu, 5 Feb - Wed, 11 Feb
MAA
Chennai
TRI
Tri-Cities
₹212,850 Return, found 19 hours ago
₹212,850
Return
found 19 hours ago
Select Qatar Airways flight, departing Thu, 5 Feb from Chennai to Tri-Cities, returning Wed, 11 Feb, priced at ₹212,850 found 19 hours ago

About Sullivan County

Expedia offers flights to Sullivan County to meet every traveller'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.

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 holiday 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, ₹25,601 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 ₹25,601 and peaked at ₹212,850. For one-way fares taking off from Boston (BOS), the cheapest seat during this same period was just ₹28,248.
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 ₹25,601 to ₹212,850.
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 16ºC to 29ºC across the season, so consider travelling 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.

Trending flights to Sullivan County

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

American Airlines
Thu, 5 Feb - Wed, 11 Feb
MAA
Chennai
TRI
Tri-Cities
₹151,669 Return, found 17 hours ago
₹151,669
Return
found 17 hours ago
Select American Airlines flight, departing Thu, 5 Feb from Chennai to Tri-Cities, returning Wed, 11 Feb, priced at ₹151,669 found 17 hours ago
*Available to Expedia members.