$603 Find Cheap Flights from San Francisco to Guam - Compare and Save

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Price, demand and travel trends for San Francisco to Guam flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What are the cheapest fares from San Francisco to Guam right now?

The cheapest fare from San Francisco to Guam in the last week was $1,256 round-trip, to Tamuning Guam Intl (GUM).

What’s the cheapest month to fly from San Francisco to Guam?

November is the cheapest time of year to fly, with average fares of $1,890. Prices are highest in August, when average flight costs increase to around $3,870.

Which airport in Guam is the cheapest to fly to from San Francisco?

All flights from San Francisco to Guam arrive at Tamuning Guam Intl (GUM). On average, round-trip fares are around $2,249.

What’s the cheapest day to fly from San Francisco to Guam?

Thursday tends to be the cheapest day to fly from San Francisco to Guam, while Sunday is the most expensive. Fares run about 34% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from San Francisco to Guam?

Data from the past 12 months shows it's cheapest to fly to Guam during the morning with average prices of $2,215. The afternoon is the most expensive time to fly, with average prices of $2,757.

Key details for San Francisco to Guam flights

Low season

September

Cheapest flight

$736
Beat the crowds with an average 48% drop in travelers.
The most popular month to fly with an average 57% increase in travelers.
One-way flight from San Francisco to Tamuning

Your San Francisco to Guam flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from San Francisco to Guam?

    Yes. Fares from San Francisco to Guam are low right now. As a rule of thumb, a round-trip under $1,940 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from San Francisco to Guam?

    Over the past 12 months, round-trip fares from San Francisco to Guam have ranged from $1,940 to $2,521.

  • What are the main airports serving Guam?

    Flights to Guam all arrive at Tamuning Guam Intl (GUM).

  • What airlines fly nonstop from San Francisco to Guam?

    Based on the flight schedule for the next 3 months, no airline regularly operates nonstop flights from San Francisco to Guam. However, United Airlines offers a one-stop option.

  • Which cabin classes are available on flights from San Francisco to Guam?

    On flights from San Francisco to Guam you can book Economy Class or Premium Economy Class.

  • What are some popular landmarks in Guam?

    KAYAK travelers' favorite landmarks in Guam include:

    • Tumon Bay
    • Dusit Thani Guam Resort and Convention Center

Your guide to booking San Francisco to Guam flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your travel dates are flexible, book your trip for November when flights are typically cheapest and avoid August when prices are at their highest.
  • Flying on Thursday is usually the cheapest. Flights on Sunday cost about 34% more on average, so being flexible with your travel dates could help you save.
  • Start your trip in Tamuning, which is the most popular destination in Guam. From there, it's easy to continue on to other popular destinations such as Yona, Dededo and Barrigada.

Reviews of the top airline flying from San Francisco to Guam

 
Need help choosing which airline to fly with from San Francisco to Guam? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
United AirlinesOverall score based on 10461 reviews
6.7Food
7.1Entertainment
7.7Boarding
7.3Comfort
8.1Crew
Airline reviews

New Max 10, first class seats have been shrunk. End of a 20 hour journey, it was United not Lufthansa, just glad to get home

8.0 ExcellentBernard, Oct 2026
Read more United Airlines reviews

New Max 10, first class seats have been shrunk. End of a 20 hour journey, it was United not Lufthansa, just glad to get home

One of my checked luggage was damaged. Cracked on the top by the handle.

Not so good. Crew was not as attentive as they should have been especially if flying business class. Only offered dinner 2 hours after takeoff. My flight attendant seemed overwhelmed. Pushed my help button but no one came. I explained everything on my previous review.

I have been flying united for a long time but now I’m done

Delayed - leaving, delayed getting to the gate at destination. What should have been a very easy flight and experience was not.

Better management of the boarding process. Is there any way you could forward all the window seats first? That's the Way Reno Air used to do it, and they had the fastest boarding in the industry!

overall a very good travel experience - left on time, arrived early. Mostly a smooth flight. Polaris seats were excellent, very good service and nice food with options.

Flight was over two hours late, but they notified us early in the morning. They ended up changing planes the food on board that was extremely mediocre and we were in premier class.

Food was very bad Crew was not so welcoming. Chairs was so uncomfortable

The business class had to wait to board last. Unacceptable

More options for your flight from San Francisco to Guam

Complete your trip to Guam with a hotel stay or car rental