Cheap Flights Guam to Singapore from £138

Flight FAQs

• Which airlines offer the cheapest flights from Guam to Singapore?

  Based on Trip.com data, Jin Air offers Cheapest nonstop one-way flights from £138 (for example, GUM–SIN on Thu, Oct 15). For a Cheapest nonstop return flight, Jin Air offers fares from £337, departing on Sat, Oct 24 and returning on Fri, Oct 30.

• Which airlines offer flights from Guam to Singapore?

  At the moment, several airlines serve connecting flights from Guam to Singapore, including: Philippine Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.

• When is the best time to book flights from Guam to Singapore?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Guam to Singapore is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from Guam to Singapore?

  Here are some tips for finding the best flight deals from Guam to Singapore on Trip.com:
  · Be flexible with your travel dates. The cheapest flight is currently on Thu, Oct 15, with one-way fares from just £138.
  · Compare airlines. Jin Air currently offers the lowest fares on this route.
  · Set up a price alert to track fare changes without searching every day.
  · Check Trip.com regularly for flight deals and available promo codes.
  · Avoid peak season or book early. January is generally the busiest month for travel to Singapore.
  · Get exclusive promo codes on the Trip.com app.

• When is the best time to book a flight from Guam to Singapore to get the best price?

  The cheapest month to book a flight from Guam to Singapore is usually August, when demand is lower.

• Which upcoming date is the cheapest for flights from Guam to Singapore?

  After crunching the numbers on our October flight calendar, it's currently cheapest to fly from Guam to Singapore on October 15, 2026 with Jin Air, with prices starting at £134.

• Which airports should you choose for flights from Guam to Singapore?

  Flights to Singapore can arrive at: Singapore Changi Airport (SIN) and Seletar Airport (XSP). The most common route connects Antonio B. Won Pat International Airport and Singapore Changi Airport (GUM–SIN).

• What is the time difference between Guam and Singapore?

  The time difference between Singapore and Guam is 2h.

• How can I change or cancel my flight ticket from Guam to Singapore?

  Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

• What is the average price of a one-way flight from Guam to Singapore?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Guam to Singapore is £553. Fares vary by travel date, airline and availability.

• How do I book flights from Guam to Singapore on Trip.com?

  Enter Guam and Singapore, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveller details and complete payment to receive your confirmation.

• Are there budget airlines on the Guam to Singapore route?

  Jin Airare the most popular budget airlines flying from Guam to Singapore. Check baggage, seat and payment fees before comparing the final price.