$215 Cheap Flights from Tri-Cities (TRI) to San Francisco (SFO)

View $215 flight on Sat, May 31, 2025Opens in a new window

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Find available prices by choosing your travel dates.

Cheap Flights from Tri-Cities to San Francisco (TRI-SFO)

Prices were available within the past 7 days and start at $215 for one-way flights and $432 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, May 30 - Fri, Jun 13
TRI
Tri-Cities
SFO
San Francisco
$432 Roundtrip, found 5 days ago
$432
Roundtrip
found 5 days ago
Select Delta flight, departing Fri, May 30 from Tri-Cities to San Francisco, returning Fri, Jun 13, priced at $432 found 5 days ago
Delta
Thu, Aug 7 - Thu, Aug 21
TRI
Tri-Cities
SFO
San Francisco
$436 Roundtrip, found 18 hours ago
$436
Roundtrip
found 18 hours ago
Select Delta flight, departing Thu, Aug 7 from Tri-Cities to San Francisco, returning Thu, Aug 21, priced at $436 found 18 hours ago
Delta
Thu, Jun 12 - Tue, Jul 1
TRI
Tri-Cities
SFO
San Francisco
$441 Roundtrip, found 6 days ago
$441
Roundtrip
found 6 days ago
Select Delta flight, departing Thu, Jun 12 from Tri-Cities to San Francisco, returning Tue, Jul 1, priced at $441 found 6 days ago
Delta
Wed, Jul 2 - Fri, Jul 11
TRI
Tri-Cities
SFO
San Francisco
$451 Roundtrip, found 6 days ago
$451
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Jul 2 from Tri-Cities to San Francisco, returning Fri, Jul 11, priced at $451 found 6 days ago
Delta
Fri, May 30 - Tue, Jun 10
TRI
Tri-Cities
SFO
San Francisco
$452 Roundtrip, found 5 days ago
$452
Roundtrip
found 5 days ago
Select Delta flight, departing Fri, May 30 from Tri-Cities to San Francisco, returning Tue, Jun 10, priced at $452 found 5 days ago
Delta
Fri, May 30 - Mon, Jun 9
TRI
Tri-Cities
SFO
San Francisco
$453 Roundtrip, found 5 days ago
$453
Roundtrip
found 5 days ago
Select Delta flight, departing Fri, May 30 from Tri-Cities to San Francisco, returning Mon, Jun 9, priced at $453 found 5 days ago
Delta
Sat, Aug 16 - Fri, Sep 5
TRI
Tri-Cities
SFO
San Francisco
$455 Roundtrip, found 18 hours ago
$455
Roundtrip
found 18 hours ago
Select Delta flight, departing Sat, Aug 16 from Tri-Cities to San Francisco, returning Fri, Sep 5, priced at $455 found 18 hours ago
Delta
Thu, Jun 5 - Fri, Jun 13
TRI
Tri-Cities
SFO
San Francisco
$456 Roundtrip, found 1 day ago
$456
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Jun 5 from Tri-Cities to San Francisco, returning Fri, Jun 13, priced at $456 found 1 day ago
Delta
Fri, May 30 - Sat, Jun 14
TRI
Tri-Cities
SFO
San Francisco
$458 Roundtrip, found 6 days ago
$458
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, May 30 from Tri-Cities to San Francisco, returning Sat, Jun 14, priced at $458 found 6 days ago
American Airlines
Sat, May 31 - Tue, Jun 10
TRI
Tri-Cities
SFO
San Francisco
$474 Roundtrip, found 4 hours ago
$474
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Sat, May 31 from Tri-Cities to San Francisco, returning Tue, Jun 10, priced at $474 found 4 hours ago
Flights from Tri-Cities (TRI) to San Francisco (SFO)
Origin airport
Tri-Cities Regional
Destination airport
San Francisco Intl.
Airlines serving
American Airlines, Delta
Roundtrip price
$432
Distance
2189 mi

Tri-Cities to San Francisco Flights

The cheapest times to fly from Tri-Cities to San Francisco

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Tri-Cities to San Francisco are during the month of May. You can find some of the cheapest flights from Tri-Cities to San Francisco with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Tri-Cities to San Francisco

Sunday is one of the best days to book for cheap flights from Tri-Cities to San Francisco: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Tri-Cities to San Francisco

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Tri-Cities to San Francisco in 2025. You can also book with separate airlines for your outbound and return journeys, from $215 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Tri-Cities to San Francisco flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Tri-Cities to San Francisco airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Tri-Cities Regional Airport (TRI) to San Francisco Intl. Airport (SFO) cost?
Discover the latest flight deals from TRI to SFO by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from TRI to SFO?
The cheapest flights from TRI to SFO are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from TRI to SFO?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from TRI to SFO. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Tri-Cities Regional Airport (TRI) to San Francisco Intl. Airport (SFO)?
There aren’t any daily direct flights departing from Tri-Cities Regional Airport (TRI) to San Francisco Intl. Airport (SFO). But you can opt for flights with layovers. Filter your search results on Expedia to include one or more stops, and you’ll be soaring above the clouds before you know it.
What day of the week has the most flights from TRI to SFO?
Generally you’ll find the most flight options available on a Friday. Tuesdays are often the quietest.* However, this can vary based on the time of year, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Tri-Cities Regional Airport (TRI) to San Francisco Intl. Airport (SFO)?
To arrive at San Francisco Intl. Airport (SFO) without delays, opt for a flight that takes off from Tri-Cities Regional Airport (TRI) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Tri-Cities Regional Airport (TRI) to San Francisco Intl. Airport (SFO) last-minute?
Last-minute fares from TRI to SFO are usually more expensive. For the cheapest rates, start searching for flights early. That said, if you can play around with your travel dates, it’s possible to land a cheap fare just before your departure.
Is it cheaper to book a TRI to SFO flight and hotel package?
You’ll generally save money by securing a TRI to SFO flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it’s easy to manage everything in one convenient place. Once you’ve selected your ideal accommodations and flights, consider adding extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from Tri-Cities Regional Airport (TRI) to San Francisco Intl. Airport (SFO)?
Typically, you can reschedule or cancel your TRI to SFO flight. However, there may be additional charges, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline’s policies and fees on flight changes, or if you need more details, visit our Customer Service portal.

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*Available to One Key members.