Cheap Flights from San Francisco International to Tri-Cities

Compare San Francisco International to Tri-Cities flight deals

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

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Flight deals from San Francisco International to Tri-Cities

Looking for a cheap last-minute deal or the best return flight from San Francisco International to Tri-Cities? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from San Francisco 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 Francisco International to Tri-Cities flights are currently cheapest in June.

San Francisco International to Tri-Cities: Alternative routes

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

San Francisco to Kingsport: Flight information

The things to know before you go.
Cheapest flight found$510
Cheapest month to flyJune

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

The best price we found for a return flight from San Francisco International to Tri-Cities is $509. 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.
Currently, there are no airlines that fly direct from San Francisco International to Tri-Cities. But we found flights with one or more stops from $510.
As of February 2026, there are no flights flying from San Francisco International to Tri-Cities.
The cheapest month to fly from San Francisco International to Tri-Cities is usually June.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Francisco International Airport to Tri-Cities Airport on Thursday, 11 June 2026.
No airlines currently offer direct flights between San Francisco International Airport and Tri-Cities Airport. Most routes have one or more stops.
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.
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.
Currently, United offers the cheapest flight tickets to Tri-Cities.

Travelling from San Francisco International Airport (SFO) to Tri-Cities Regional Airport (TRI): what you need to know

  • Give yourself plenty of time to catch your SFO to TRI flight. As a general rule, turn up two hours before international departures and an hour ahead for domestic flights.

  • Flying during a peak time such as August? Major public holidays and other popular periods can result in longer queues at security. Play things extra safe and arrive up to four hours before international flights and two hours before a domestic departure.

  • If you'd like to explore another city along the way, simply uncheck 'Direct flights only' when searching for your ticket from San Francisco International Airport to Tri-Cities Regional Airport. Here are the most popular stopovers between SFO and TRI:

    • Hartsfield-Jackson Atlanta International Airport

    • Charlotte Douglas International Airport

    • Dallas/Fort Worth International Airport

How to find the cheapest flights from San Francisco International Airport (SFO) to Tri-Cities Regional Airport (TRI)

  • The lowest price we've seen for a one-way San Francisco International Airport to Tri-Cities Regional Airport flight is $515. A round-trip ticket is currently $510. Depending on the availability when you book, these fares can change.

  • Don't wait until the last moment. You're more likely to get cheap tickets from SFO to TRI if you book ahead. Airlines often have some amazing early bird rates.

  • If you can be flexible with your trip dates, use the 'Whole month' search function. It'll find the cheapest price across the month when searching for your flight from San Francisco International Airport to Tri-Cities Regional Airport.

  • Picking up cheap flights from SFO to TRI is a breeze with Price Alerts. All you need to do is create one of these automatic alerts and we'll notify you as soon as a new deal comes up.

  • Tailor your flights using filters. Choose your preferred arrival and departure times, total journey duration and airlines. You can also sort your results by 'Best,' 'Fastest' or 'Cheapest' flights from San Francisco International Airport to Tri-Cities Regional Airport.

Handy information about San Francisco International Airport (SFO)

  • When it comes to the on-time performance of San Francisco International Airport, 77.36% of flights meet their scheduled arrival time.

  • Central San Francisco to San Francisco International Airport is approximately 21 kilometres. Depending on traffic, it'll take you about 20 minutes to get there if you're catching a cab, ride-sharing or driving.

  • Catching public transport? Expect a journey time of around 45 minutes.

  • Looking for a convenient hotel close to SFO? If you've booked an early flight from San Francisco International Airport to Tri-Cities Regional Airport, these accommodation options will have you moments from your departure gate:

Arriving at Tri-Cities Regional Airport (TRI)

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

  • TRI is located at 2525 Tennessee 75.

  • Tri-Cities Regional Airport is approximately 23 kilometres from central Kingsport. The drive time takes around 25 minutes.

When to fly to Tri-Cities Regional Airport (TRI)

  • It's time to work out your trip dates for your flight from San Francisco International Airport to Tri-Cities Regional Airport. July is the busiest month to head to Kingsport. If you like a more low-key vibe, go in February.

  • The warmest month in Kingsport is July, with the temperature ranging between 16ºC and 31ºC. Book your flights from San Francisco International Airport to Tri-Cities Regional Airport in this month if this is the type of weather you enjoy.

  • Look for cheap tickets from SFO to TRI in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -7ºC and 10ºC on average.

Explore more of United States

  • Kingsport has plenty going for it, but there are so many other parts of United States waiting to be discovered. Around 386 kilometres north of Kingsport, a trip to Columbus will keep you busy. Start with attractions like Franklin Park Conservatory and Botanical Gardens, Ohio Statehouse and German Village.

  • If you're interested in discovering another major stop in United States, head for Indianapolis, roughly 483 kilometres north-west of Kingsport. The Children's Museum of Indianapolis, Indianapolis Museum of Art and Indianapolis Zoo are among its highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.