The cheapest times to fly from SAN to GUM are

  • January 8th to March 25th
  • September 3rd to December 2nd

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from SAN to GUM is mid November. Prices can be as high as $1971 for Sunday flights during early to mid August, or as low as $1403 for Tuesday flights around mid November.


When to Fly to Guam

Flying from San Diego, CA (SAN) to Guam, GU (GUM) will usually cost between $1466 to $1929 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid November with an average ticket price of $1508. Due to high demand the most expensive time to fly is early to mid August, with an average price of $1906. Planning your trip to low-cost times can easily save you $398 on economy flights and even more on first-class flights. Generally, any price below $1711 can be considered a good price for a round-trip SAN to GUM flight.

See below for a graph of average weekly prices for the SAN to GUM route. All prices are for round-trip tickets in USD.

SAN to GUM Flight Prices

Compared to other flights, the SAN to GUM flight is more expensive than the average and costs more than the average flight leaving from San Diego. The average price per mile (for a direct flight) is $0.17, which is below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly to Guam, and Saturdays are the most expensive days to return to San Diego. Selecting flights on the least expensive days could save you up to $125 (7%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $1635. Return trip prices are from the GUM to SAN flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from SAN to GUM can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 12 hour 5 minutes may not be realistic.


Flight Hacking SAN to GUM

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from SAN to GUM — but Champion Traveler does!

Hack #1: Manila (SAN > MNL > GUM)

  • Price for both tickets: $1082
  • Average savings: $629 (36.74%)

See SAN to MNL flights

Hack #2: Taipei (SAN > TPE > GUM)

  • Price for both tickets: $1214
  • Average savings: $497 (29.03%)

See SAN to TPE flights

Hack #3: Hong Kong (SAN > HKG > GUM)

  • Price for both tickets: $1231
  • Average savings: $480 (28.06%)

See SAN to HKG flights


Flight Questions Answered

Still have questions about flying from SAN to GUM? We’ve got answers.

Which airlines fly this route?

You can find 12 major airlines flying this route most often: Air Canada, Alaska, American, ANA, Asiana, China Airlines, Delta, Fiji Airways, Hawaiian, JAL, Korean Air, United, and potentially more during busy seasons.

How far away is it from Guam International Airport to San Diego International Airport?

The distance between the two airports is roughly 6169 miles or 9928 kilometers.

How long does it take to fly from SAN to GUM?

The real-world flight time for a nonstop SAN to GUM flight is about 12 hour 5 minutes.

How many flights go between San Diego, CA and Guam, GU?

It depends on the day of the week and the date, but a typical day might have around 53 available flights from SAN to GUM.


Airport Location Info


Departing Airport

Origination codeSAN
Origination airport nameSan Diego International Airport
CitySan Diego, CA
Countrythe United States

Return Airport

Destination codeGUM
Destination airport nameGuam International Airport
CityGuam, GU
Countrythe United States


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.