Cheap flights from Ontario to Guam from C$ 1,170
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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Ontario to Guam
Keep the following information in mind while searching for Ontario to Guam flight deals. Data was last updated 12 June 2025.
Find flight deals from Ontario to Guam
Cheapest flights from Ontario to GuamExplore the most affordable flight options available from Ontario to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.
Explore the most affordable flight options available from Ontario to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2025.
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Guam that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 12 June 2025.
Use the filters below to find and compare flights from Ontario to Guam that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
MontrealTamuning
YUL - GUM
YULGUM
Montreal Pierre Elliott Trudeau Intl
Fri 11/7
8:10 a.m.-2:00 a.m.
3 stops27h 50m
Tamuning Guam Intl
Thu 17/7
3:05 a.m.-12:43 a.m.
2 stops35h 38m
MontrealTamuning
YUL - GUM
YULGUM
Montreal Pierre Elliott Trudeau Intl
Fri 11/7
6:15 a.m.-6:05 p.m.
2 stops21h 50m
Tamuning Guam Intl
Fri 18/7
7:15 a.m.-5:26 p.m.
3 stops48h 11m
TorontoTamuning
YYZ - GUM
YYZGUM
Toronto Pearson Intl
Sat 5/7
6:30 a.m.-3:15 p.m.
3 stops42h 45m
TorontoTamuning
YYZ - GUM
YYZGUM
Toronto Pearson Intl
Fri 4/7
1:35 a.m.-4:30 a.m.
1 stop36h 55m
Best time to book a flight from Ontario to Guam
Have a flexible travel schedule? Discover the best time to fly to Guam from Ontario with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Guam
Rainfall in Guam by month
Plan your trip to Guam by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Guam ranges from 65.0 - 365.0 mm per month. August is typically the wettest month, when rainfall can reach 365.0 mm. March is typically the driest time to visit Guam when rainfall is around 65.0 mm.
Temperature in Guam by month
Plan your trip to Guam by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Guam, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 27.0 C).
Reviews of airlines servicing Guam
Get insights into the airlines that provide service to Guam. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Guam. Reviews last updated 12 June 2025.
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
Anonymous,Dec 2024
YVR - SFO
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
Anonymous,Dec 2024
YVR - SFO
Entertainment
Boarding
Comfort
Food
Overall
Crew
Reviews
Anonymous,Dec 2024
YVR - SFO
Related info for your journey
Find useful and relevant information for your journey from Ontario to Guam. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Ontario to Guam
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Ontario to Guam
Discover the top airline that operate flights from Ontario to Guam. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 12 June 2025.
Fly with Cheapflights
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How does Cheapflights help users find flights from Ontario to Guam?
Cheapflights makes it easy to find Ontario to Guam flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
Why should you use Cheapflights to find cheap flight tickets from Ontario to Guam?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Ontario to Guam.
Can Cheapflights find flights from Ontario to Guam with no change fees?
Certainly. Search results for flights to Guam from Ontario shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Ontario to Guam become cheaper?
Not ready to book yet? You can track prices for flights from Ontario to Guam on Cheapflights with our Price Alert feature and get notified when better prices are available.