Cheap flights to Sullivan County

View €517 flight on Mon, 27 Apr 2026Opens in a new window

Popular airlines to Sullivan County

  • Delta

    Delta

  • American Airlines

    American Airlines

  • Breeze Airways

    Breeze Airways

  • KLM

    KLM

  • Virgin Atlantic

    Virgin Atlantic

  • Air France

    Air France

  • Aeromexico

    Aeromexico

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Cheap round-trip flights to Sullivan County

Prices were available within the past 7 days and start at €517 for one-way flights and €510 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air France
Fri, 23 Jan - Sun, 1 Feb
DUB
Dublin
TRI
Tri-Cities
€510 Return, found 4 days ago
€510
Return
found 4 days ago
Select Air France flight, departing Fri, 23 Jan from Dublin to Tri-Cities, returning Sun, 1 Feb, priced at €510 found 4 days ago
Delta
Thu, 22 Jan - Sun, 1 Feb
DUB
Dublin
TRI
Tri-Cities
€515 Return, found 14 hours ago
€515
Return
found 14 hours ago
Select Delta flight, departing Thu, 22 Jan from Dublin to Tri-Cities, returning Sun, 1 Feb, priced at €515 found 14 hours ago
Delta
Wed, 21 Jan - Sun, 1 Feb
DUB
Dublin
TRI
Tri-Cities
€515 Return, found 1 day ago
€515
Return
found 1 day ago
Select Delta flight, departing Wed, 21 Jan from Dublin to Tri-Cities, returning Sun, 1 Feb, priced at €515 found 1 day ago
Delta
Thu, 22 Jan - Sun, 1 Feb
DUB
Dublin
TRI
Tri-Cities
€517 Return, found 14 hours ago
€517
Return
found 14 hours ago
Select Delta flight, departing Thu, 22 Jan from Dublin to Tri-Cities, returning Sun, 1 Feb, priced at €517 found 14 hours ago
Delta
Tue, 20 Jan - Sun, 1 Feb
DUB
Dublin
TRI
Tri-Cities
€520 Return, found 4 days ago
€520
Return
found 4 days ago
Select Delta flight, departing Tue, 20 Jan from Dublin to Tri-Cities, returning Sun, 1 Feb, priced at €520 found 4 days ago
Delta
Tue, 20 Jan - Sun, 1 Feb
DUB
Dublin
TRI
Tri-Cities
€522 Return, found 4 days ago
€522
Return
found 4 days ago
Select Delta flight, departing Tue, 20 Jan from Dublin to Tri-Cities, returning Sun, 1 Feb, priced at €522 found 4 days ago
Delta
Tue, 20 Jan - Sun, 1 Feb
DUB
Dublin
TRI
Tri-Cities
€522 Return, found 4 days ago
€522
Return
found 4 days ago
Select Delta flight, departing Tue, 20 Jan from Dublin to Tri-Cities, returning Sun, 1 Feb, priced at €522 found 4 days ago
KLM
Fri, 23 Jan - Sun, 1 Feb
DUB
Dublin
TRI
Tri-Cities
€527 Return, found 4 days ago
€527
Return
found 4 days ago
Select KLM flight, departing Fri, 23 Jan from Dublin to Tri-Cities, returning Sun, 1 Feb, priced at €527 found 4 days ago
American Airlines
Fri, 23 Jan - Sun, 1 Feb
DUB
Dublin
TRI
Tri-Cities
€632 Return, found 4 days ago
€632
Return
found 4 days ago
Select American Airlines flight, departing Fri, 23 Jan from Dublin to Tri-Cities, returning Sun, 1 Feb, priced at €632 found 4 days ago
Aer Lingus
Sat, 3 Jan - Wed, 7 Jan
SNN
Shannon
TRI
Tri-Cities
€2,341 Return, found 15 hours ago
€2,341
Return
found 15 hours ago
Select Aer Lingus flight, departing Sat, 3 Jan from Shannon to Tri-Cities, returning Wed, 7 Jan, priced at €2,341 found 15 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, €510 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 €510 and peaked at €2,341. For one-way fares taking off from Dublin (DUB), the cheapest seat during this same period was just €517.
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.
How much is a plane ticket to Sullivan County?
In the last seven days, airfares to Sullivan County ranged from €510 to €2,341.
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.

Air France
Fri, 23 Jan - Sun, 1 Feb
DUB
Dublin
TRI
Tri-Cities
€510 Return, found 4 days ago
€510
Return
found 4 days ago
Select Air France flight, departing Fri, 23 Jan from Dublin to Tri-Cities, returning Sun, 1 Feb, priced at €510 found 4 days ago
*Available to Expedia members.