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Cheap flights from Ontario (ONT) to Guam from $979

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 4/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ONT — GUM
Apr 29 — May 61
From?
To?
Mon 4/29
Mon 5/6
1 adult, Economy
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How far in advance should I book a flight from Ontario to Guam?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 49 days in advance, which can save you up to 27% on flights from Ontario to Guam compared to booking the week you need them. Waiting 49 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $1,022. For sooner than that we have options available in the next 3 days from $2,471.

What is the cheapest month to fly from Ontario to Guam?

Our data shows that November tends to be the cheapest month to fly to Guam from Ontario. Users have commonly found prices around $1,909 for the month, but tickets can be as low as $944. Due to multiple factors, prepare for potentially higher prices in July.

When is the cheapest time to fly from Ontario to Guam (ONT - GU)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Guam as you normally would.

Cheap United Airlines flights from Ontario to Guam

Explore cheap flight options specifically provided by United Airlines for the route between Ontario and Guam. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,086,534 searches. Data last updated April 24, 2024.
Find some of the cheapest United Airlines flights traveling from Ontario to Guam. Deals update often to give you more flight options matching your criteria
Mon 5/206:00 amONT - GUM
2 stops19h 15mUnited Airlines
Wed 5/225:00 pmGUM - ONT
2 stops46h 27mUnited Airlines
Deal found 4/22$1,094
Sat 9/2810:48 amONT - GUM
2 stops60h 02mUnited Airlines
Wed 10/26:55 amGUM - ONT
2 stops23h 12mUnited Airlines
Deal found 4/21$1,100
Wed 7/36:35 pmONT - GUM
2 stops30h 30mUnited Airlines
Thu 8/16:55 amGUM - ONT
2 stops27h 33mUnited Airlines
Deal found 4/22$1,966
Mon 7/16:10 amONT - GUM
2 stops18h 55mUnited Airlines
Wed 7/317:10 pmGUM - ONT
2 stops44h 35mUnited Airlines
Deal found 4/23$1,990
Sat 7/276:20 amONT - GUM
2 stops18h 45mUnited Airlines
Sat 8/106:55 amGUM - ONT
2 stops22h 20mUnited Airlines
Deal found 4/22$2,066
Thu 6/206:20 amONT - GUM
2 stops18h 45mUnited Airlines
Thu 6/276:55 amGUM - ONT
2 stops21h 08mUnited Airlines
Deal found 4/22$2,306
Wed 8/76:20 amONT - GUM
2 stops18h 45mUnited Airlines
Sun 8/116:55 amGUM - ONT
2 stops22h 13mUnited Airlines
Deal found 4/22$2,356
Mon 5/66:00 amONT - GUM
2 stops19h 15mUnited Airlines
Mon 5/136:55 amGUM - ONT
2 stops20h 06mUnited Airlines
Deal found 4/22$2,376
Mon 5/66:00 amONT - GUM
2 stops19h 15mUnited Airlines
Sun 5/127:05 pmGUM - ONT
2 stops44h 59mUnited Airlines
Deal found 4/22$2,400

Cheap Delta flights from Ontario to Guam

Explore cheap flight options specifically provided by Delta for the route between Ontario and Guam. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,086,534 searches. Data last updated April 24, 2024.
Some of the lowest-priced Delta flights we've found at this time heading from Ontario to Guam. Check back soon if you're not seeing flights that suit your needs.
Tue 4/307:00 amONT - GUM
2 stops39h 15mDelta
Sun 5/125:00 pmGUM - ONT
2 stops46h 38mDelta
Deal found 4/22$2,452
Fri 5/37:00 amONT - GUM
2 stops39h 15mDelta
Sun 5/125:00 pmGUM - ONT
2 stops46h 38mDelta
Deal found 4/22$2,502

Cheap Ontario to Guam flights in April & May 2024

Find cheap flight options from Ontario to Guam specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,086,534 searches. Prices were last updated on April 24, 2024.
The lowest fares we've come across on flights traveling from Ontario to Guam in April and May 2024. Check back soon for alternative fares.
Fri 4/266:00 amONT - GUM
2 stops19h 15mUnited Airlines
Sun 4/285:00 pmGUM - ONT
2 stops47h 04mUnited Airlines
Deal found 4/22$979
Mon 5/206:00 amONT - GUM
2 stops19h 15mUnited Airlines
Wed 5/225:00 pmGUM - ONT
2 stops46h 27mUnited Airlines
Deal found 4/22$1,094
Mon 5/66:00 amONT - GUM
2 stops19h 15mUnited Airlines
Mon 5/136:55 amGUM - ONT
2 stops20h 06mUnited Airlines
Deal found 4/22$2,376
Mon 5/66:00 amONT - GUM
2 stops19h 15mUnited Airlines
Sun 5/127:05 pmGUM - ONT
2 stops44h 59mUnited Airlines
Deal found 4/22$2,400
Tue 4/307:00 amONT - GUM
2 stops39h 15mDelta
Sun 5/125:00 pmGUM - ONT
2 stops46h 38mDelta
Deal found 4/22$2,452
Tue 4/307:00 amONT - GUM
2 stops39h 15mDelta
Thu 5/95:00 pmGUM - ONT
2 stops46h 38mDelta
Deal found 4/22$2,502
Sun 5/510:42 amONT - GUM
2 stops38h 33mUnited Airlines
Tue 5/146:55 amGUM - ONT
2 stops20h 06mUnited Airlines
Deal found 4/22$2,731
Wed 5/16:00 amONT - GUM
2 stops19h 15mUnited Airlines
Thu 5/96:55 amGUM - ONT
2 stops20h 06mUnited Airlines
Deal found 4/22$2,776
Sun 5/510:42 amONT - GUM
2 stops49h 03mUnited Airlines
Sun 5/127:05 pmGUM - ONT
2 stops44h 59mUnited Airlines
Deal found 4/22$2,785

Ontario to Guam 2024 flight deals

Discover exclusive flight deals for travel between Ontario and Guam in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,086,534 searches. Data last updated April 24, 2024.
The lowest fares we've come across on flights traveling from Ontario to Guam in April and May 2024. Check back soon for alternative fares.
Fri 4/266:00 amONT - GUM
2 stops19h 15mUnited Airlines
Sun 4/285:00 pmGUM - ONT
2 stops47h 04mUnited Airlines
Deal found 4/22$979
Mon 5/206:00 amONT - GUM
2 stops19h 15mUnited Airlines
Wed 5/225:00 pmGUM - ONT
2 stops46h 27mUnited Airlines
Deal found 4/22$1,094
Sat 9/2810:48 amONT - GUM
2 stops60h 02mUnited Airlines
Wed 10/26:55 amGUM - ONT
2 stops23h 12mUnited Airlines
Deal found 4/21$1,100
Wed 7/36:35 pmONT - GUM
2 stops30h 30mUnited Airlines
Thu 8/16:55 amGUM - ONT
2 stops27h 33mUnited Airlines
Deal found 4/22$1,966
Mon 7/16:10 amONT - GUM
2 stops18h 55mUnited Airlines
Wed 7/317:10 pmGUM - ONT
2 stops44h 35mUnited Airlines
Deal found 4/23$1,990
Sat 7/276:20 amONT - GUM
2 stops18h 45mUnited Airlines
Sat 8/106:55 amGUM - ONT
2 stops22h 20mUnited Airlines
Deal found 4/22$2,066
Thu 6/206:20 amONT - GUM
2 stops18h 45mUnited Airlines
Thu 6/276:55 amGUM - ONT
2 stops21h 08mUnited Airlines
Deal found 4/22$2,306
Wed 8/76:20 amONT - GUM
2 stops18h 45mUnited Airlines
Sun 8/116:55 amGUM - ONT
2 stops22h 13mUnited Airlines
Deal found 4/22$2,356
Mon 5/66:00 amONT - GUM
2 stops19h 15mUnited Airlines
Mon 5/136:55 amGUM - ONT
2 stops20h 06mUnited Airlines
Deal found 4/22$2,376

Ontario to Guam flights leaving soon

Find last-minute flight options from Ontario to Guam for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,086,534 searches. Data last updated April 24, 2024.
Have a look at some of the last-minute flights available departing from Ontario to Guam. To prevent any unwanted surprises, users should verify their flight info before booking.
Tue 4/307:00 amONT - GUM
2 stops39h 15mDelta
Sun 5/125:00 pmGUM - ONT
2 stops46h 38mDelta
Deal found 4/22$2,452
Tue 4/307:00 amONT - GUM
2 stops39h 15mDelta
Thu 5/95:00 pmGUM - ONT
2 stops46h 38mDelta
Deal found 4/22$2,502
Wed 5/16:00 amONT - GUM
2 stops19h 15mUnited Airlines
Thu 5/96:55 amGUM - ONT
2 stops20h 06mUnited Airlines
Deal found 4/22$2,776
Thu 5/26:00 amONT - GUM
2 stops29h 45mUnited Airlines
Sun 5/127:05 pmGUM - ONT
2 stops44h 59mUnited Airlines
Deal found 4/22$2,816
Fri 5/36:00 amONT - GUM
2 stops19h 15mUnited Airlines
Thu 5/96:55 amGUM - ONT
2 stops20h 06mUnited Airlines
Deal found 4/22$2,826
Fri 5/311:59 pmONT - GUM
2 stops45h 16mMultiple Airlines
Sun 5/125:55 amGUM - ONT
3 stops55h 13mMultiple Airlines
Deal found 4/22$3,640
Fri 5/310:20 pmONT - GUM
3 stops46h 55mMultiple Airlines
Sun 5/125:55 amGUM - ONT
3 stops59h 01mMultiple Airlines
Deal found 4/22$4,169

One-way flights to Guam from Ontario

Search for one-way flight options from Ontario to Guam. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,086,534 searches. Data last updated April 24, 2024.
Some of the best available deals we've found on one-way flights from Ontario to Guam. Users needing a return flight from Ontario to Guam should utilize the search form above.
Mon 5/66:00 amONT - GUM
2 stops19h 15mUnited Airlines
Deal found 4/21$1,457
Tue 5/216:00 amONT - GUM
2 stops19h 15mUnited Airlines
Deal found 4/22$1,566
Sun 9/17:00 amONT - GUM
2 stops39h 15mDelta
Deal found 4/22$5,039
Sat 8/312:00 pmONT - GUM
2 stops56h 15mDelta
Deal found 4/22$5,049

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 3,086,534 searches. Data last updated April 24, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$1,094 - $3,640

Route

Depart

Return

Price

OntarioTamuning Guam Intl

ONT - GUM

ONTGUM

Ontario

Mon 5/20

2 stops19h 15m

Tamuning Guam Intl

Wed 5/22

2 stops46h 27m

$1,094

OntarioTamuning Guam Intl

ONT - GUM

ONTGUM

Ontario

Sat 9/28

2 stops60h 02m

Tamuning Guam Intl

Wed 10/2

2 stops23h 12m

$1,100

OntarioTamuning Guam Intl

ONT - GUM

ONTGUM

Ontario

Wed 7/3

2 stops30h 30m

Tamuning Guam Intl

Thu 8/1

2 stops27h 33m

$1,966

OntarioTamuning Guam Intl

ONT - GUM

ONTGUM

Ontario

Mon 7/1

2 stops18h 55m

Tamuning Guam Intl

Wed 7/31

2 stops44h 35m

$1,990

OntarioTamuning Guam Intl

ONT - GUM

ONTGUM

Ontario

Sat 7/27

2 stops18h 45m

Tamuning Guam Intl

Sat 8/10

2 stops22h 20m

$2,066

OntarioTamuning Guam Intl

ONT - GUM

ONTGUM

Ontario

Thu 6/20

2 stops18h 45m

Tamuning Guam Intl

Thu 6/27

2 stops21h 08m

$2,306

OntarioTamuning Guam Intl

ONT - GUM

ONTGUM

Ontario

Fri 5/3

2 stops39h 15m

Tamuning Guam Intl

Sun 5/12

2 stops46h 38m

$2,502

OntarioTamuning Guam Intl

ONT - GUM

ONTGUM

Ontario

Wed 7/3

3 stops39h 05m

Tamuning Guam Intl

Thu 8/1

2 stops56h 50m

$2,571

OntarioTamuning Guam Intl

ONT - GUM

ONTGUM

Ontario

Fri 5/3

2 stops45h 16m

Tamuning Guam Intl

Sun 5/12

3 stops55h 13m

$3,640

Flights are sorted by cheapest first

Deals found on 4/22

No data available for this route at this time. Please check back soon.

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 April 24, 2024.
See what other customers who have flown with United Airlines and Delta from Ontario to Guam have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
11,028 reviews
Check prices

Crew

8.6

Entertainment

8.0

Food

7.5

Boarding

8.2

Overall

8.1

Comfort

7.9

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Delta
8.1
Very good
11,028 reviews
Delta
8.1
Very good
11,028 reviews
Check prices

Crew

8.6

Entertainment

8.0

Food

7.5

Boarding

8.2

Overall

8.1

Comfort

7.9

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

United Airlines
7.4
Good
11,272 reviews
Delta
8.1
Very good
11,028 reviews
Check prices

Crew

8.6

Entertainment

8.0

Food

7.5

Boarding

8.2

Overall

8.1

Comfort

7.9

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

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 $1,100 on Cheapflights?

    Yes, there are multiple flights from Ontario to Guam for under $1,100. The cheapest flight booked recently is on United Airlines for just $1,094, but on average you can expect to pay $2,429.

  • Are there last-minute flights available from Ontario to Guam for under $2,500?

    There are currently 7+ open flights from Ontario to Guam within the next 7 days for less than $2,500.

  • 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 4/23.

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 3,086,534 searches. Data last updated April 24, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,786Average$2,431FlexibilityNo cancel feeOn-time69%
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Search flights from Ontario to Guam by cabin class

Find flights from Ontario to Guam, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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?

Cheapflights simply makes it quick and affordable to book flights from Ontario to Guam by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Ontario to Guam with no change fees?

Yes, we can. To see specific flights from Ontario to Guam with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Ontario to Guam become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Guam from Ontario today and book when prices fit your budget.

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