In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

What is the cheapest time of day to fly from LWS to SFO?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Lewiston, Idaho to San Francisco as you normally would.

Can I find deals for flights from Lewiston to San Francisco that include hotel bookings?

Yes. In addition to deals on Lewiston to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Lewiston to San Francisco?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Lewiston to San Francisco.

Can I find deals for business class flights from Lewiston to San Francisco?

Yes. Cheapflights offers flight deals from Lewiston to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$343+ Cheap Flights from Lewiston, ID to San Francisco

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Cheap flight deals from Lewiston to San Francisco

Round-trip from	$396 (Delta)
One-way from	$343 (Delta)

From Lewiston Nez Perce Rgnl to San Francisco

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One-way flight from Lewiston Nez Perce Rgnl to San Francisco

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Find flight deals from Lewiston to San Francisco

Cheapest flights from Lewiston to San Francisco
Explore the most affordable flight options available from Lewiston to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Fri 8/297:05 amLWS - SFO

1 stop5h 46mDelta

Tue 9/24:35 pmSFO - LWS

1 stop4h 28mDelta

Deal found 8/14

$396

Best flights from Lewiston to San Francisco
Discover carefully curated flight deals from Lewiston to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 14, 2025.

Fri 8/297:05 amLWS - SFO

1 stop5h 46mDelta

Tue 9/24:35 pmSFO - LWS

1 stop4h 28mDelta

Deal found 8/14

$396

Last-minute flights from Lewiston to San Francisco
Discover last-minute flight deals from Lewiston to San Francisco. Data last updated August 14, 2025 and is based on user searches.

Fri 8/297:05 amLWS - SFO

1 stop5h 46mDelta

Tue 9/24:35 pmSFO - LWS

1 stop4h 28mDelta

Deal found 8/14

$396

One-way flights from Lewiston to San Francisco
Search for one-way flight options from Lewiston to San Francisco. Find affordable one-way fares based on user searches. Data last updated August 14, 2025.

Fri 8/297:05 amLWS - SFO

1 stop5h 46mDelta

Deal found 8/14

$343

Cheapflights Fare Finder

Use the filters below to find and compare flights from Lewiston to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LewistonSan Francisco

LWS - SFO

LWSSFO

Lewiston Nez Perce Rgnl

Fri 8/29

7:05 am-12:51 pm

1 stop5h 46m

San Francisco

Tue 9/2

4:35 pm-9:03 pm

1 stop4h 28m

$396

LewistonSan Francisco

LWS - SFO

LWSSFO

Lewiston Nez Perce Rgnl

Fri 8/29

7:05 am-12:51 pm

1 stop5h 46m

$343

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Best time to book a flight from Lewiston to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Lewiston with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Lewiston to San Francisco

What is the cheapest month to book a flight from Lewiston, Idaho to San Francisco?

Currently, January is the cheapest month in which you can book a flight from Lewiston, Idaho to San Francisco (average of $276). Flying from Lewiston, Idaho to San Francisco in June is currently the most expensive (average of $358). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Can I find deals for flights from Lewiston to San Francisco that include hotel bookings?
Yes. In addition to deals on Lewiston to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Lewiston to San Francisco?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Lewiston to San Francisco.
Can I find deals for business class flights from Lewiston to San Francisco?
Yes. Cheapflights offers flight deals from Lewiston to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Lewiston, Idaho to San Francisco?
Currently, January is the cheapest month in which you can book a flight from Lewiston, Idaho to San Francisco (average of $276). Flying from Lewiston, Idaho to San Francisco in June is currently the most expensive (average of $358). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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$343+ Cheap flights from Lewiston, ID to San Francisco (LWS - SFO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/29. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Lewiston to San Francisco with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Lewiston to San Francisco

Round-trip from

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Find flight deals from Lewiston to San Francisco

Cheapest flights from Lewiston to San FranciscoExplore the most affordable flight options available from Lewiston to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Explore the most affordable flight options available from Lewiston to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Lewiston to San Francisco that are best for you.

Best time to book a flight from Lewiston to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Lewiston with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Lewiston to San Francisco

What is the cheapest month to book a flight from Lewiston, Idaho to San Francisco?

Related info for your journey

Find useful and relevant information for your journey from Lewiston to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find deals for flights from Lewiston to San Francisco that include hotel bookings?

How can I find direct flights from Lewiston to San Francisco?

Can I find deals for business class flights from Lewiston to San Francisco?

What is the cheapest month to book a flight from Lewiston, Idaho to San Francisco?

Traveling to a place near San Francisco?

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Cheapest flights from Lewiston to San Francisco
Explore the most affordable flight options available from Lewiston to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.