Cheap Flights from San Diego International to Tri-Cities

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Compare San Diego International to Tri-Cities flight deals

Find the cheapest month or even day of the year to fly to Tri-Cities

Book the best Tri-Cities fare with no extra fees

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Flight deals from San Diego International to Tri-Cities

Looking for a cheap last-minute deal or the best return flight from San Diego International Airport to Tri-Cities Airport? If you want to travel next month, return fares start from $904. Find the lowest prices on one-way and return tickets right here.

Kingsport.$617 per passenger.Departing Fri, 6 Nov, returning Sun, 8 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from San Diego International on Fri, 6 Nov, arriving in Tri-Cities.Inbound indirect flight with Delta, departs from Tri-Cities on Sun, 8 Nov, arriving in San Diego International.Price includes taxes and charges.From $617, select.

Kingsport.$650 per passenger.Departing Fri, 29 Jan, returning Tue, 2 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from San Diego International on Fri, 29 Jan, arriving in Tri-Cities.Inbound indirect flight with Delta, departs from Tri-Cities on Tue, 2 Feb, arriving in San Diego International.Price includes taxes and charges.From $650, select.

Kingsport.$701 per passenger.Departing Thu, 29 Oct, returning Sun, 1 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from San Diego International on Thu, 29 Oct, arriving in Tri-Cities.Inbound indirect flight with Delta, departs from Tri-Cities on Sun, 1 Nov, arriving in San Diego International.Price includes taxes and charges.From $701, select.

Kingsport.$734 per passenger.Departing Thu, 24 Sep, returning Mon, 28 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from San Diego International on Thu, 24 Sep, arriving in Tri-Cities.Inbound indirect flight with Delta, departs from Tri-Cities on Mon, 28 Sep, arriving in San Diego International.Price includes taxes and charges.From $734, select.

Kingsport.$904 per passenger.Departing Sat, 10 Oct, returning Fri, 16 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from San Diego International on Sat, 10 Oct, arriving in Tri-Cities.Inbound indirect flight with Delta, departs from Tri-Cities on Fri, 16 Oct, arriving in San Diego International.Price includes taxes and charges.From $904, select.

Kingsport.$1,216 per passenger.Departing Sat, 26 Dec, returning Fri, 1 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from San Diego International on Sat, 26 Dec, arriving in Tri-Cities.Inbound indirect flight with Delta, departs from Tri-Cities on Fri, 1 Jan, arriving in San Diego International.Price includes taxes and charges.From $1,216, select.

Kingsport.$1,319 per passenger.Departing Thu, 17 Dec, returning Mon, 28 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from San Diego International on Thu, 17 Dec, arriving in Tri-Cities.Inbound indirect flight with Delta, departs from Tri-Cities on Mon, 28 Dec, arriving in San Diego International.Price includes taxes and charges.From $1,319, select.

Kingsport.$1,709 per passenger.Departing Sun, 27 Sep, returning Thu, 1 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from San Diego International on Sun, 27 Sep, arriving in Tri-Cities.Inbound indirect flight with Delta, departs from Tri-Cities on Thu, 1 Oct, arriving in San Diego International.Price includes taxes and charges.From $1,709, select.

Find the cheapest month to fly from San Diego International to Tri-Cities

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Diego International to Tri-Cities flights are currently cheapest in November.

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San Diego International to Tri-Cities: Alternative routes

Compare routes from San Diego International to Kingsport below. You may find an airport to fly into that's cheaper, faster, or easier than Tri-Cities.

Tri-Cities

16km from central Kingsport

ClosestCheapest

from $617

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San Diego to Kingsport: Flight information

The things to know before you go.

Cheapest flight found	$617
Cheapest month to fly	November

Finding cheap flights from San Diego International to Tri-Cities: Frequently asked questions

How much are return flights from San Diego International to Tri-Cities?

The best price we found for a return flight from San Diego International to Tri-Cities is $617. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from San Diego International to Tri-Cities?

Currently, there are no airlines that fly direct from San Diego International to Tri-Cities. But we found flights with one or more stops from $617.

How many flights are there a week from San Diego International to Tri-Cities?

As of September 2026, there are no flights flying from San Diego International to Tri-Cities.

When is the cheapest time to fly from San Diego International to Tri-Cities?

The cheapest month to fly from San Diego International to Tri-Cities is usually November.

Which upcoming date is cheapest to fly from San Diego International Airport to Tri-Cities Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Diego International Airport to Tri-Cities Airport on Friday, 6 November 2026.

Can I get a direct flight from San Diego International Airport to Tri-Cities Airport?

No airlines currently offer direct flights between San Diego International Airport and Tri-Cities Airport. Most routes have one or more stops.

How can I find the best flight deal to Tri-Cities?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Tri-Cities but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Kingsport?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Kingsport is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from San Diego International Airport to Tri-Cities with?

Currently, Delta offers the cheapest flight tickets to Tri-Cities.

Flying from San Diego International Airport (SAN) to Tri-Cities Airport (TRI): what you need to know

Your SAN to TRI flight won't wait if you're running late, so be at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.
You'll likely experience longer queues in popular months like August. Arriving up to four hours ahead of international flights and two hours for domestic departures is a good idea.
If you'd like to include a stop along the way, just uncheck 'Direct flights only' when searching for your ticket from San Diego International Airport to Tri-Cities Airport. These are the most popular stopovers between SAN and TRI:
- Atlanta Hartsfield-Jackson Airport
- Dallas Fort Worth International Airport
- Charlotte Douglas Airport

How to find the cheapest flights from San Diego International Airport (SAN) to Tri-Cities Airport (TRI)

$648 is currently the best price for a one-way San Diego International Airport to Tri-Cities Airport flight. Return flights start from $617. These fares can change depending on demand and availability.
Don't leave everything to the last minute. You're more likely to get cheap tickets from SAN to TRI if you book early. Airlines often offer some amazing early bird discounts.
The 'Whole month' tool shows you the cheapest flights from San Diego International Airport to Tri-Cities Airport across each month. It's a great way to find a bargain if your travel plans are flexible.
There's no need to check back in every day to find out if fares have dropped when you set up a Price Alert. We'll notify you the moment there's a better deal on cheap flights from SAN to TRI.
Discover the right flight for you by using the filters. To see the 'Fastest,' 'Best' or 'Cheapest' flights from San Diego International Airport to Tri-Cities Airport, use the 'Sort by' function. You can also filter results by departure and arrival times, airline, and number of stops.

Handy information about San Diego International Airport (SAN)

You'll find SAN at N Harbour Dr.
When it comes to the on-time performance of San Diego International Airport, data shows 74% of flights meet their scheduled arrival time.
Central San Diego to San Diego International Airport is around 5 kilometres. Depending on traffic, it'll take about 15 minutes to get there if you're catching a taxi, ride-sharing or driving.
Planning to catch public transport? Expect a journey time of around 25 minutes.
Get your break off to a relaxed start by staying near SAN. Whether you're taking an early flight from San Diego International Airport to Tri-Cities Airport or want to avoid feeling rushed, these stays are ideal:

Arriving at Tri-Cities Airport (TRI)

If you're landing on a late San Diego International Airport to Tri-Cities Airport flight, nothing beats the convenience of being near the terminal. Grab your suitcases from the carousel and then be showered and snoozing soon after at one of these options near TRI:
Fast-track your adventure by picking up a Tri-Cities Airport rental car. Grab your wheels from Budget, Alamo or Hertz and explore beyond Kingsport's main sights.
Book your ride from Tri-Cities Airport several weeks ahead to get the best possible rate. If you're going away during peak season, it's wise to book even earlier.

Getting from Tri-Cities Airport (TRI) to central Kingsport

The address for TRI is 2525 Tennessee 75.
From Tri-Cities Airport, Kingsport is approximately 18 kilometres away. It takes around 15 minutes to drive to the centre.
Getting there on public transport will take you around 35 minutes.

When to fly to Tri-Cities Airport (TRI)

July is the most popular month for flights from San Diego International Airport to Tri-Cities Airport. To escape the crowds, travel to Kingsport in April.
When booking your flight from San Diego International Airport to Tri-Cities Airport, consider the kind of weather you enjoy. July is the warmest month in Kingsport, with temperatures ranging from 16ºC to 31ºC.
Search for cheap tickets from SAN to TRI in January if you like cooler conditions. Temperatures are at their lowest around then, ranging between -7ºC and 10ºC on average.

Explore more of the United States

Columbus is just one of the many places in the United States waiting to be discovered once you've seen Kingsport. Around 386 kilometres away to the north, its best attractions include Franklin Park Conservatory and Botanical Gardens, Whetstone Park / Park of Roses and Ohio Theatre.
Indianapolis is another sought-after destination in the United States and is around 483 kilometres north-west of Kingsport. No trip is complete without seeing Lucas Oil Stadium, Eiteljorg Museum and The Children's Museum of Indianapolis.