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$1,230+ Cheap flights from Ontario (ONT) to Guam

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — GUM
Nov 5 — Nov 121
1 adult
Tue 11/5
Tue 11/12
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Find flight deals from Ontario to Guam

Cheapest flights from Ontario to Guam
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 October 31, 2024.

This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/306:00 amONT - GUM
2 stops40h 45mUnited Airlines
Sat 11/27:25 amGUM - ONT
2 stops27h 18mUnited Airlines
Deal found 10/29$1,230
This Delta deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/145:40 amONT - GUM
2 stops38h 55mDelta
Thu 11/284:50 pmGUM - ONT
2 stops59h 48mDelta
Deal found 10/30$1,911

Find flights from Ontario to Guam within your budget

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 2,570,725 searches. Data last updated October 31, 2024.

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Fly to

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Route

Depart

Return

Price

OntarioTamuning

ONT - GUM

ONTGUM

Ontario

Mon 11/4

6:00 am-6:50 pm

2 stops18h 50m

$1,566

OntarioTamuning

ONT - GUM

ONTGUM

Ontario

Sun 11/3

5:00 am-5:50 pm

2 stops18h 50m

Tamuning Guam Intl

Tue 11/5

7:10 am-10:23 pm

2 stops33h 13m

$1,548

OntarioTamuning

ONT - GUM

ONTGUM

Ontario

Thu 11/14

5:40 am-2:35 pm

2 stops38h 55m

Tamuning Guam Intl

Thu 11/28

4:50 pm-10:38 am

2 stops59h 48m

$1,911

Flights are sorted by cheapest first

Deals found on 10/30

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.
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.

Travel insights for flights from Ontario to Guam

Get recent, data-driven insights about flights from Ontario to Guam including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Ontario to Guam?

Currently, October is the cheapest month in which you can book a flight from Ontario to Guam (average of $1,966). Flying from Ontario to Guam in June is currently the most expensive (average of $2,239). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 2.6 - 14.4 inches per month. August is typically the wettest month, when rainfall can reach 14.4 in. March is typically the driest time to visit Guam when rainfall is around 2.6 in.

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 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 80.6 F).

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 October 31, 2024.
Delta
8.0
Very good
8,835 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,835 reviews
Delta
8.0
Very good
8,835 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
9,240 reviews
Delta
8.0
Very good
8,835 reviews

Boarding

8.2

Overall

8.0

Crew

8.5

Comfort

7.9

Entertainment

7.9

Food

7.3

Reviews

1 / 10

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What airport do you fly from for flights from Ontario to Guam?

    Most people fly from Ontario (ONT) if they book a flight from Ontario to Guam. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

  • Can I find flights from Ontario to Guam for under $2,000 on Cheapflights?

    Yes, there are multiple flights from Ontario to Guam for under $2,000. The cheapest flight booked recently is on Delta for just $1,911, but on average you can expect to pay $2,088.

  • What does ONT to GUM mean?

    Great question - ONT to GUM just means Ontario Airport to Tamuning Guam Intl Airport. Now you’ll know what these unique codes when you look for flights!

  • Can I find deals for flights from Ontario to Guam that include extra baggage allowance?

    The amount of baggage you can bring on your Ontario to Guam flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Ontario to Guam with specific airlines?

    Yes, Cheapflights allows you to browse and filter Ontario to Guam flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Ontario to Guam that include hotel bookings?

    Yes. In addition to deals on Ontario to Guam flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Guam?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Guam.

  • Can I find deals for business class flights from Ontario to Guam?

    Yes. Cheapflights offers flight deals from Ontario to Guam by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Ontario to Guam that allow pets onboard?

    Many airlines flying from Ontario to Guam offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Ontario to Guam?

    Yes, you can often find last-minute deals on Ontario to Guam flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Ontario to Guam flight deals updated?

    The Ontario to Guam flight deals you see on this page were last updated on 10/30.

  • What is the cheapest month to book a flight from Ontario to Guam?

    Currently, October is the cheapest month in which you can book a flight from Ontario to Guam (average of $1,966). Flying from Ontario to Guam in June is currently the most expensive (average of $2,239). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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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 2,570,725 searches. Data last updated October 31, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,866Average$2,469FlexibilityNo cancel feeOn-time69%
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