How long is the flight from Guam to San Francisco?

United Airlines can get you from Guam to San Francisco in just under 22h 30m. 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 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.

$641+ 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 December 18, 2025.

Tue 12/237:05 amGUM - SFO

1 stop22h 30mUnited Airlines

Fri 1/169:30 amSFO - GUM

1 stop15h 35mUnited Airlines

Deal found 12/17

$2,023

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 December 18, 2025.

Mon 1/197:05 amGUM - SFO

1 stop22h 30mUnited Airlines

Mon 1/265:40 pmSFO - GUM

2 stops31h 25mUnited Airlines

Deal found 12/17

$1,363

Fri 4/177:05 amGUM - SFO

1 stop21h 05mUnited Airlines

Thu 5/289:20 amSFO - GUM

1 stop15h 45mUnited Airlines

Deal found 12/16

$1,423

Thu 4/3012:10 pmGUM - SFO

2 stops25h 29mUnited Airlines

Mon 5/48:59 pmSFO - GUM

2 stops28h 06mUnited Airlines

Deal found 12/15

$1,433

Thu 3/512:30 pmGUM - SFO

2 stops19h 04mUnited Airlines

Mon 3/99:10 pmSFO - GUM

2 stops28h 40mUnited Airlines

Deal found 12/15

$1,433

Tue 4/2812:10 pmGUM - SFO

2 stops25h 10mUnited Airlines

Sun 5/36:40 pmSFO - GUM

2 stops30h 25mUnited Airlines

Deal found 12/15

$1,433

Tue 1/137:05 amGUM - SFO

1 stop22h 30mUnited Airlines

Tue 1/209:30 amSFO - GUM

1 stop15h 35mUnited Airlines

Deal found 12/16

$1,473

Sat 1/317:20 amGUM - SFO

1 stop22h 15mUnited Airlines

Sat 2/76:00 amSFO - GUM

2 stops19h 05mUnited Airlines

Deal found 12/17

$1,473

Last-minute flights from Guam to San Francisco
Discover last-minute flight deals from Guam to San Francisco. Data last updated December 18, 2025 and is based on user searches.

Tue 12/237:05 amGUM - SFO

1 stop22h 30mUnited Airlines

Fri 1/169:30 amSFO - GUM

1 stop15h 35mUnited Airlines

Deal found 12/17

$2,023

Tue 1/137:40 amGUM - SFO

2 stops19h 13mUnited Airlines

Tue 1/2010:15 amSFO - GUM

1 stop24h 05mUnited Airlines

Deal found 12/16

$1,476

Thu 1/157:05 amGUM - SFO

1 stop22h 30mUnited Airlines

Thu 1/226:00 amSFO - GUM

2 stops19h 05mUnited Airlines

Deal found 12/15

$1,477

Mon 1/197:05 amGUM - SFO

1 stop22h 30mUnited Airlines

Mon 1/269:30 amSFO - GUM

1 stop15h 35mUnited Airlines

Deal found 12/17

$1,363

Sat 1/317:20 amGUM - SFO

1 stop22h 15mUnited Airlines

Sat 2/76:00 amSFO - GUM

2 stops19h 05mUnited Airlines

Deal found 12/17

$1,473

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 December 18, 2025.

Thu 1/222:40 amGUM - SFO

2 stops33h 19mMultiple Airlines

Deal found 12/17

$641

Thu 1/87:05 amGUM - SFO

1 stop22h 30mUnited Airlines

Deal found 12/18

$1,394

Find flight deals from Guam to San Francisco

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$1,363 (United Airlines)
One-way from	$641 (Kiwi.com)
Popular in	February
Cheapest in	November
Average price	$1,529

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

Search Deals

Provider most trusted by Cheapflights users for Tamuning Guam Intl-San Francisco flights.

Search Deals

From Guam to San Francisco

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One-way flight from Guam to San Francisco

Search Deals

Highest demand for flights based on searches. 6% potential increase in price ($115 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($35 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

TamuningSan Francisco

GUM - SFO

GUMSFO

Tamuning Guam Intl

Mon 1/19

7:05 am-11:35 am

1 stop22h 30m

San Francisco

Mon 1/26

5:40 pm-7:05 pm

2 stops31h 25m

$1,363

TamuningSan Francisco

GUM - SFO

GUMSFO

Tamuning Guam Intl

Fri 4/17

7:05 am-11:10 am

1 stop21h 05m

San Francisco

Thu 5/28

9:20 am-6:05 pm

1 stop15h 45m

$1,423

TamuningSan Francisco

GUM - SFO

GUMSFO

Tamuning Guam Intl

Thu 4/30

12:10 pm-8:39 pm

2 stops25h 29m

San Francisco

Mon 5/4

8:59 pm-6:05 pm

2 stops28h 06m

$1,433

TamuningSan Francisco

GUM - SFO

GUMSFO

Tamuning Guam Intl

Thu 3/5

12:30 pm-1:34 pm

2 stops19h 04m

San Francisco

Mon 3/9

9:10 pm-6:50 pm

2 stops28h 40m

$1,433

TamuningSan Francisco

GUM - SFO

GUMSFO

Tamuning Guam Intl

Tue 4/28

12:10 pm-8:20 pm

2 stops25h 10m

San Francisco

Sun 5/3

6:40 pm-6:05 pm

2 stops30h 25m

$1,433

TamuningSan Francisco

GUM - SFO

GUMSFO

Tamuning Guam Intl

Tue 1/13

7:05 am-11:35 am

1 stop22h 30m

San Francisco

Tue 1/20

9:30 am-7:05 pm

1 stop15h 35m

$1,473

TamuningSan Francisco

GUM - SFO

GUMSFO

Tamuning Guam Intl

Sat 1/31

7:20 am-11:35 am

1 stop22h 15m

San Francisco

Sat 2/7

6:00 am-7:05 pm

2 stops19h 05m

$1,473

TamuningSan Francisco

GUM - SFO

GUMSFO

Tamuning Guam Intl

Thu 1/22

2:40 am-5:59 pm

2 stops33h 19m

$641

TamuningSan Francisco

GUM - SFO

GUMSFO

Tamuning Guam Intl

Fri 1/9

7:05 am-11:35 am

1 stop22h 30m

$1,394

TamuningSan Francisco

GUM - SFO

GUMSFO

Tamuning Guam Intl

Fri 1/23

7:05 am-11:35 am

1 stop22h 30m

$1,394

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 11 results

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

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

It’s optimal to fly from Guam to San Francisco in the afternoon. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight at noon.

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

9,091 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

9,091 reviews

United Airlines

7.4

Good

9,091 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 30m. 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

Roseville

South San Francisco

Santa Cruz

Livermore

Turlock

Manteca

Watsonville

Redwood City

Sunnyvale

Santa Clara

San Bruno

Daly City

San Carlos

Vallejo

Hollister

San Ramon

Foster City

Union City

Davis

Emeryville

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$1,611	FlexibilityNo cancel fee	On-time69%

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$641+ 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 1/22. 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 December 18, 2025.

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 December 18, 2025.

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 December 18, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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

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

Find hourly flight availability from Guam to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

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?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Guam to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Guam to San Francisco

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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 December 18, 2025.