317 € Cheap Flights from Tri-Cities to San Francisco International

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Flight deals from Tri-Cities to San Francisco International

Looking for a cheap last-minute deal or the best return flight from Tri-Cities Airport to San Francisco International Airport? If you want to travel next month, return fares start from 355 €. Find the lowest prices on one-way and return tickets right here.

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

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

Kingsport to San Francisco: Flight information

The things to know before you go.
Cheapest flight found317 €
Cheapest month to flyMay

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

The best price we found for a return flight from Tri-Cities to San Francisco International is 317 €. 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 Tri-Cities to San Francisco International. But we found flights with one or more stops from 317 €.
As of May 2026, there are no flights flying from Tri-Cities to San Francisco International.
The cheapest month to fly from Tri-Cities to San Francisco International is usually May.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Tri-Cities Airport to San Francisco International Airport on Friday, 29 May 2026.
No airlines currently offer direct flights between Tri-Cities Airport and San Francisco International 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 San Francisco International 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 San Francisco is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Breeze Airways offers the cheapest flight tickets to San Francisco International.

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

  • The timezone in San Francisco is UTC-7, which is three hours behind Kingsport.

  • Your TRI to SFO flight won't wait if you're running late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • During popular months such as July, it's a good idea to get to the airport well in advance. Plan to arrive two hours before a domestic departure and four hours ahead of international flights whenever you're travelling during a high season in general.

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

  • 129 € is the best price for a one-way Tri-Cities Regional Airport to San Francisco International Airport flight. A return flight starts at 317 €. These prices can change based on demand and availability.

  • It's often best to book in advance if you're looking for cheap tickets from TRI to SFO. That's because airlines adjust prices based on demand, which tends to rise closer to departure.

  • The 'Whole month' search tool shows you the cheapest flights from Tri-Cities Regional Airport to San Francisco International Airport across the month. It's a great way to find a bargain if your plans aren't set in stone.

  • You won't have to check back in every day to see if fares have dropped when you set up a Price Alert. We'll send you an update the moment there's a change in price on cheap flights from TRI to SFO.

  • Secure the perfect flight for you by using the filters. To see the 'Cheapest,' 'Best' or 'Fastest' flights from Tri-Cities Regional Airport to San Francisco International Airport, use the 'Sort by' function. You can also filter results by departure and arrival times, airline, and number of stops.

Handy information about Tri-Cities Regional Airport (TRI)

  • The address for TRI is 2525 Tennessee 75.

  • 79.37% of flights taking off from Tri-Cities Regional Airport reach their destination on time.

  • Central Kingsport to Tri-Cities Regional Airport is approximately 23 kilometres. Depending on traffic, it'll take about 25 minutes to get there if you're driving, ride-sharing or catching a cab.

  • Get your break off to a relaxed start by staying near TRI. Whether you're taking an early flight from Tri-Cities Regional Airport to San Francisco International Airport or want to avoid feeling rushed, these hotels are ideal:

Arriving at San Francisco International Airport (SFO)

Getting from San Francisco International Airport (SFO) to central San Francisco

  • From San Francisco International Airport, San Francisco is approximately 21 kilometres away. It takes around 20 minutes to drive to the centre.

  • Travelling by public transport typically takes 45 minutes.

When to fly to San Francisco International Airport (SFO)

  • The quietest month for a flight from Tri-Cities Regional Airport to San Francisco International Airport is February, while August is the most popular. Choose the best time to go to San Francisco based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • Book your flight from Tri-Cities Regional Airport to San Francisco International Airport for September if you want to visit San Francisco during its warmest month. You can expect temperatures of between 12ºC (54ºF) and 22ºC (72ºF).

  • Look for cheap tickets from TRI to SFO in January if you like cooler conditions. Temperatures are at their lowest then, ranging between 6ºC (43ºF) and 16ºC (61ºF) on average.

Explore more of United States

  • San Francisco has loads to offer, but there are so many other corners of United States waiting to be discovered. Around 64 kilometres south-east of San Francisco, a trip to San Jose will keep you busy. Start with leading sights like Winchester Mystery House, Rosicrucian Egyptian Museum and San Jose Museum of Art.

  • If you're ready to explore another major destination in United States, consider Fresno, roughly 257 kilometres south-east of San Francisco. Forestiere Underground Gardens, Fresno Chaffee Zoo and Shinzen Japanese Garden are among its highlights.

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