In terms of precipitation, rainfall in Williamsport ranges from 2.4 - 3.9 inches per month. August is typically the wettest month, when rainfall can reach 3.9 in. February is typically the driest time to visit Williamsport when rainfall is around 2.4 in.

If weather is an important factor for your trip to Williamsport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

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

When flying from San Francisco to Williamsport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

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

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

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

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

$361+ Flights from San Francisco to Williamsport

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Cheap flight deals from San Francisco to Williamsport

Round-trip from	$1,117 (Expedia)
One-way from	$361 (Kiwi.com)

From San Francisco to Williamsport Lycoming County

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One-way flight from San Francisco to Williamsport Lycoming County

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Find flight deals from San Francisco to Williamsport

Cheapest flights from San Francisco to Williamsport
Explore the most affordable flight options available from San Francisco to Williamsport. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 14, 2026.

Thu 1/299:42 pm

SFO

IPT

3 stops18h 08m

Multiple Airlines

Mon 2/22:50 pm

IPT

SFO

2 stops10h 57m

Multiple Airlines

Deal found 1/14

$1,117

Wed 1/289:42 pm

SFO

IPT

3 stops18h 08m

Multiple Airlines

Sun 2/12:50 pm

IPT

SFO

2 stops10h 57m

Multiple Airlines

Deal found 1/13

$1,277

Best flights from San Francisco to Williamsport
Discover carefully curated flight deals from San Francisco to Williamsport that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 14, 2026.

Thu 1/299:42 pm

SFO

IPT

3 stops18h 08m

Multiple Airlines

Mon 2/22:50 pm

IPT

SFO

2 stops10h 57m

Multiple Airlines

Deal found 1/14

$1,117

Wed 1/289:42 pm

SFO

IPT

3 stops18h 08m

Multiple Airlines

Sun 2/12:50 pm

IPT

SFO

2 stops10h 57m

Multiple Airlines

Deal found 1/13

$1,277

Last-minute flights from San Francisco to Williamsport
Discover last-minute flight deals from San Francisco to Williamsport. Data last updated January 14, 2026 and is based on user searches.

Wed 1/289:42 pm

SFO

IPT

3 stops18h 08m

Multiple Airlines

Sun 2/12:50 pm

IPT

SFO

2 stops10h 57m

Multiple Airlines

Deal found 1/13

$1,277

Thu 1/299:42 pm

SFO

IPT

3 stops18h 08m

Multiple Airlines

Mon 2/22:50 pm

IPT

SFO

2 stops10h 57m

Multiple Airlines

Deal found 1/14

$1,117

One-way flights from San Francisco to Williamsport
Search for one-way flight options from San Francisco to Williamsport. Find affordable one-way fares based on user searches. Data last updated January 14, 2026.

Thu 1/226:15 am

SFO

IPT

3 stops57h 35m

Multiple Airlines

Deal found 1/13

$361

Mon 1/198:41 pm

SFO

IPT

3 stops43h 09m

Multiple Airlines

Deal found 1/13

$442

Fri 1/236:15 am

SFO

IPT

3 stops33h 35m

Multiple Airlines

Deal found 1/13

$451

Wed 1/217:00 am

SFO

IPT

3 stops32h 50m

Multiple Airlines

Deal found 1/13

$521

Tue 1/209:42 pm

SFO

IPT

3 stops18h 08m

Multiple Airlines

Deal found 1/13

$1,131

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoWilliamsport

SFO - IPT

SFOIPT

San Francisco

Thu 1/29

9:42 pm-6:50 pm

3 stops18h 08m

Williamsport Lycoming County

Mon 2/2

2:50 pm-10:47 pm

2 stops10h 57m

$1,117

San FranciscoWilliamsport

SFO - IPT

SFOIPT

San Francisco

Wed 1/28

9:42 pm-6:50 pm

3 stops18h 08m

Williamsport Lycoming County

Sun 2/1

2:50 pm-10:47 pm

2 stops10h 57m

$1,277

San FranciscoWilliamsport

SFO - IPT

SFOIPT

San Francisco

Thu 1/22

6:15 am-6:50 pm

3 stops57h 35m

$361

San FranciscoWilliamsport

SFO - IPT

SFOIPT

San Francisco

Mon 1/19

8:41 pm-6:50 pm

3 stops43h 09m

$442

San FranciscoWilliamsport

SFO - IPT

SFOIPT

San Francisco

Fri 1/23

6:15 am-6:50 pm

3 stops33h 35m

$451

San FranciscoWilliamsport

SFO - IPT

SFOIPT

San Francisco

Wed 1/21

7:00 am-6:50 pm

3 stops32h 50m

$521

San FranciscoWilliamsport

SFO - IPT

SFOIPT

San Francisco

Tue 1/20

9:42 pm-6:50 pm

3 stops18h 08m

$1,131

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/13

Best time to book a flight from San Francisco to Williamsport

Have a flexible travel schedule? Discover the best time to fly to Williamsport from San Francisco 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 San Francisco to Williamsport

What is the cheapest month to book a flight from San Francisco to Williamsport?

Currently, May is the cheapest month in which you can book a flight from San Francisco to Williamsport (average of $180). Flying from San Francisco to Williamsport in June is currently the most expensive (average of $342). 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 San Francisco to Williamsport that include hotel bookings?
Yes. In addition to deals on San Francisco to Williamsport flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Francisco to Williamsport?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Williamsport.
Can I find deals for business class flights from San Francisco to Williamsport?
Yes. Cheapflights offers flight deals from San Francisco to Williamsport 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 San Francisco to Williamsport?
Currently, May is the cheapest month in which you can book a flight from San Francisco to Williamsport (average of $180). Flying from San Francisco to Williamsport in June is currently the most expensive (average of $342). 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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$361+ Cheap flights from San Francisco to Williamsport (SFO - IPT)

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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from San Francisco to Williamsport

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Find flight deals from San Francisco to Williamsport

Cheapest flights from San Francisco to WilliamsportExplore the most affordable flight options available from San Francisco to Williamsport. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 14, 2026.

Explore the most affordable flight options available from San Francisco to Williamsport. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 14, 2026.

Cheapflights Fare Finder

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

Best time to book a flight from San Francisco to Williamsport

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

Cheapflights Insights

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

What is the cheapest month to book a flight from San Francisco to Williamsport?

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Williamsport. 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 San Francisco to Williamsport that include hotel bookings?

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

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

What is the cheapest month to book a flight from San Francisco to Williamsport?

Traveling to a place near Williamsport?

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Cheapest flights from San Francisco to Williamsport
Explore the most affordable flight options available from San Francisco to Williamsport. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 14, 2026.