How long is the flight from Guam to San Francisco?

United Airlines can get you from Guam to San Francisco in just under 22h 25m. Your travel time can differ by up to . Guam and San Francisco are separated by a distance of 5800 mi.

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 GU to SFO?

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

What airport do you fly into for flights to San Francisco from Guam?

If you book a flight to San Francisco from Guam, you will be flying to San Francisco, which is the city’s only airport. San Francisco (SFO) is located 11.8 mi from the center of San Francisco.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Guam 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.

$615+ Flights from Guam to San Francisco

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Cheap flight deals from Guam to San Francisco

Cheapest flights from Guam to San Francisco
Explore the most affordable flight options available from Guam to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Wed 4/157:05 am

GUM

SFO

1 stop17h 30m

United Airlines

Wed 7/1511:10 am

SFO

GUM

1 stop35h 40m

United Airlines

Deal found 1/27

$1,474

Fri 3/1312:30 pm

GUM

SFO

2 stops19h 20m

United Airlines

Fri 3/206:00 am

SFO

GUM

2 stops19h 50m

United Airlines

Deal found 1/27

$1,484

Wed 2/412:30 pm

GUM

SFO

2 stops24h 22m

United Airlines

Wed 2/116:00 am

SFO

GUM

2 stops19h 05m

United Airlines

Deal found 1/28

$1,485

Wed 8/57:15 am

GUM

SFO

1 stop20h 45m

United Airlines

Wed 8/1910:45 am

SFO

GUM

1 stop14h 20m

United Airlines

Deal found 1/27

$1,574

Best flights from Guam to San Francisco
Discover carefully curated flight deals from Guam to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 29, 2026.

Fri 3/137:05 am

GUM

SFO

1 stop22h 25m

United Airlines

Fri 3/2010:05 am

SFO

GUM

1 stop15h 45m

United Airlines

Deal found 1/27

$1,474

Wed 4/157:05 am

GUM

SFO

1 stop17h 30m

United Airlines

Wed 7/1511:10 am

SFO

GUM

1 stop35h 40m

United Airlines

Deal found 1/27

$1,474

Last-minute flights from Guam to San Francisco
Discover last-minute flight deals from Guam to San Francisco. Data last updated January 29, 2026 and is based on user searches.

Wed 2/47:20 am

GUM

SFO

1 stop26h 40m

United Airlines

Wed 2/119:30 am

SFO

GUM

1 stop15h 35m

United Airlines

Deal found 1/28

$1,474

One-way flights from Guam to San Francisco
Search for one-way flight options from Guam to San Francisco. Find affordable one-way fares based on user searches. Data last updated January 29, 2026.

Wed 2/112:40 am

GUM

SFO

2 stops39h 19m

Multiple Airlines

Deal found 1/29

$615

Sun 2/82:40 am

GUM

SFO

2 stops38h 23m

Multiple Airlines

Deal found 1/27

$670

Sat 2/72:40 am

GUM

SFO

2 stops35h 32m

Multiple Airlines

Deal found 1/27

$671

Mon 2/91:00 am

GUM

SFO

2 stops40h 30m

Delta

Deal found 1/27

$1,242

Sun 2/87:05 am

GUM

SFO

1 stop22h 30m

United Airlines

Deal found 1/27

$1,395

Tue 2/107:20 pm

GUM

SFO

1 stop31h 50m

United Airlines

Deal found 1/27

$1,398

Thu 2/127:20 pm

GUM

SFO

1 stop31h 50m

United Airlines

Deal found 1/29

$1,898

Tue 2/105:45 am

GUM

SFO

3 stops55h 46m

Multiple Airlines

Deal found 1/27

$2,354

Find flight deals from Guam to San Francisco

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$1,474 (United Airlines)
One-way from	$615 (Kiwi.com)
Popular in	February
Cheapest in	March

Provider with most accurate pricing for Tamuning Guam Intl-San Francisco flight deals.

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From Guam to San Francisco

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One-way flight from Guam to San Francisco

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High demand for flights, 1% potential price rise

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Cheapest flight prices on average. 0% potential price decrease ($10 potential savings vs. average RT price).

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Fly from

Fly to

Route

Depart

Return

Price

TamuningSan Francisco

GUM - SFO

GUMSFO

Tamuning Guam Intl

Fri 3/13

7:05 am-12:30 pm

1 stop22h 25m

San Francisco

Fri 3/20

10:05 am-6:50 pm

1 stop15h 45m

$1,474

TamuningSan Francisco

GUM - SFO

GUMSFO

Tamuning Guam Intl

Wed 4/15

7:05 am-7:35 am

1 stop17h 30m

San Francisco

Wed 7/15

11:10 am-3:50 pm

1 stop35h 40m

$1,474

TamuningSan Francisco

GUM - SFO

GUMSFO

Tamuning Guam Intl

Wed 2/11

2:40 am-11:59 pm

2 stops39h 19m

$615

TamuningSan Francisco

GUM - SFO

GUMSFO

Tamuning Guam Intl

Sun 2/8

2:40 am-11:03 pm

2 stops38h 23m

$670

TamuningSan Francisco

GUM - SFO

GUMSFO

Tamuning Guam Intl

Sat 2/7

2:40 am-8:12 pm

2 stops35h 32m

$671

TamuningSan Francisco

GUM - SFO

GUMSFO

Tamuning Guam Intl

Mon 2/9

1:00 am-11:30 pm

2 stops40h 30m

$1,242

TamuningSan Francisco

GUM - SFO

GUMSFO

Tamuning Guam Intl

Mon 2/9

7:05 am-11:35 am

1 stop22h 30m

$1,395

TamuningSan Francisco

GUM - SFO

GUMSFO

Tamuning Guam Intl

Sun 2/8

7:05 am-11:35 am

1 stop22h 30m

$1,395

TamuningSan Francisco

GUM - SFO

GUMSFO

Tamuning Guam Intl

Tue 2/10

7:20 pm-9:10 am

1 stop31h 50m

$1,398

TamuningSan Francisco

GUM - SFO

GUMSFO

Tamuning Guam Intl

Thu 2/12

7:20 pm-9:10 am

1 stop31h 50m

$1,898

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Best time to book a flight from Guam to San Francisco

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

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing San Francisco

Get a feel of what it's like to fly with United Airlines from Guam to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

9,215 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

United Airlines

7.4

Good

9,215 reviews

United Airlines

7.4

Good

9,215 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

What airport do you fly into for flights to San Francisco from Guam?
If you book a flight to San Francisco from Guam, you will be flying to San Francisco, which is the city’s only airport. San Francisco (SFO) is located 11.8 mi from the center of San Francisco.
How long is the flight from Guam to San Francisco?
United Airlines can get you from Guam to San Francisco in just under 22h 25m. Your travel time can differ by up to . Guam and San Francisco are separated by a distance of 5800 mi.
Can I find deals for flights from Guam to San Francisco that include hotel bookings?
Yes. In addition to deals on Guam to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Guam to San Francisco?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Guam to San Francisco.
Can I find deals for business class flights from Guam to San Francisco?
Yes. Cheapflights offers flight deals from Guam 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.

See more FAQs

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Browse thousands of different options on Cheapflights for your next trip

Top airline flying from Guam to San Francisco

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$1,429	Average$1,634	FlexibilityNo cancel fee	On-time69%

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$615+ Cheap flights from Guam to San Francisco (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 2/11. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Guam 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 Guam to San Francisco

Cheapest flights from Guam to San FranciscoExplore the most affordable flight options available from Guam to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Explore the most affordable flight options available from Guam to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Find flight deals from Guam to San Francisco

Keep the following information in mind while searching for Guam to San Francisco flight deals. Data was last updated January 29, 2026.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Cheapflights Fare Finder

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

Best time to book a flight from Guam to San Francisco

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

Cheapflights Insights

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

Reviews of airlines servicing San Francisco

Get a feel of what it's like to fly with United Airlines from Guam to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What airport do you fly into for flights to San Francisco from Guam?

How long is the flight from Guam to San Francisco?

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

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

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

Traveling to a place near San Francisco?

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Alternative routes for Guam to San Francisco

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Top airline flying from Guam to San Francisco

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Travel Smart

Cheapest flights from Guam to San Francisco
Explore the most affordable flight options available from Guam to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.