When did momondo last update prices for flights from Guam to Ontario Airport?

Prices for flights from Guam to Ontario Airport are updated daily.

How old do you have to be to fly from Guam to Ontario Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Guam to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$1,056 Cheap Flights from Guam to Ontario in 2026

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Find the cheapest flights from Guam to Los Angeles

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Recent round-trip flight deals from Guam to Los Angeles

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7:30 pm - 10:59 pm

GUM

ONT

44h 29m

2 stops

1:30 pm - 6:05 pm

ONT

GUM

35h 35m

2 stops

$1,392United Airlines

Sun, May 3 - Mon, May 11

12:15 pm - 5:47 pm

GUM

ONT

22h 32m

2 stops

6:00 am - 6:05 pm

ONT

GUM

19h 05m

2 stops

$1,434United Airlines

Thu, Oct 1 - Fri, Oct 16

7:05 am - 5:52 pm

GUM

ONT

27h 47m

2 stops

1:50 pm - 6:05 pm

ONT

GUM

35h 15m

2 stops

$1,536United Airlines

Thu, May 14 - Thu, Jun 4

7:05 am - 10:37 pm

GUM

ONT

32h 32m

2 stops

6:00 am - 4:20 am

ONT

GUM

29h 20m

2 stops

$1,581United Airlines

Wed, Jun 17 - Thu, Jul 9

7:15 am - 10:37 pm

GUM

ONT

32h 22m

2 stops

5:00 am - 6:05 pm

ONT

GUM

44h 05m

2 stops

$1,583United Airlines

Thu, May 28 - Thu, Jun 18

7:05 am - 8:42 pm

GUM

ONT

30h 37m

2 stops

7:13 pm - 6:05 pm

ONT

GUM

53h 52m

2 stops

$1,605United Airlines

Mon, Aug 10 - Sat, Aug 22

7:05 am - 12:12 pm

GUM

ONT

22h 07m

2 stops

6:00 am - 9:45 pm

ONT

GUM

22h 45m

2 stops

$1,634United Airlines

Tue, Jun 30 - Fri, Jul 10

7:10 am - 12:38 pm

GUM

ONT

22h 28m

2 stops

6:00 am - 9:45 pm

ONT

GUM

22h 45m

2 stops

$1,957United Airlines

Wed, May 6 - Wed, May 20

7:05 am - 9:56 am

GUM

ONT

19h 51m

2 stops

6:00 am - 9:45 pm

ONT

GUM

22h 45m

2 stops

$1,982United Airlines

Tue, Apr 28 - Wed, May 27

7:05 am - 12:12 pm

GUM

ONT

22h 07m

2 stops

8:00 am - 9:45 pm

ONT

GUM

20h 45m

2 stops

$2,057United Airlines

Sun, Aug 2 - Tue, Aug 18

United Airlines flights from Guam to Ontario

Our best United Airlines deals on Guam to Ontario flight tickets

United Airlines

May 3

GUM7:30 pmTamuning Guam Intl

44h 29m

2 stops

ONT10:59 pmOntario

May 11

ONT1:30 pmOntario

35h 35m

2 stops

GUM6:05 pmTamuning Guam Intl

$1,392

United Airlines

Oct 1

GUM12:15 pmTamuning Guam Intl

22h 32m

2 stops

ONT5:47 pmOntario

Oct 16

ONT6:00 amOntario

19h 05m

2 stops

GUM6:05 pmTamuning Guam Intl

$1,434

United Airlines

May 14

GUM7:05 amTamuning Guam Intl

27h 47m

2 stops

ONT5:52 pmOntario

Jun 4

ONT1:50 pmOntario

35h 15m

2 stops

GUM6:05 pmTamuning Guam Intl

$1,536

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TamuningOntario

GUM - ONT

GUMONT

Tamuning Guam Intl

Sun 5/3

7:30 pm-10:59 pm

2 stops44h 29m

Ontario

Mon 5/11

1:30 pm-6:05 pm

2 stops35h 35m

$1,392

Quickest round-trip

TamuningOntario

GUM - ONT

GUMONT

Tamuning Guam Intl

Thu 10/1

12:15 pm-5:47 pm

2 stops22h 32m

Ontario

Fri 10/16

6:00 am-6:05 pm

2 stops19h 05m

$1,434

TamuningOntario

GUM - ONT

GUMONT

Tamuning Guam Intl

Thu 5/14

7:05 am-5:52 pm

2 stops27h 47m

Ontario

Thu 6/4

1:50 pm-6:05 pm

2 stops35h 15m

$1,536

TamuningOntario

GUM - ONT

GUMONT

Tamuning Guam Intl

Wed 6/17

7:05 am-10:37 pm

2 stops32h 32m

Ontario

Thu 7/9

6:00 am-4:20 am

2 stops29h 20m

$1,581

TamuningOntario

GUM - ONT

GUMONT

Tamuning Guam Intl

Thu 5/28

7:15 am-10:37 pm

2 stops32h 22m

Ontario

Thu 6/18

5:00 am-6:05 pm

2 stops44h 05m

$1,583

TamuningOntario

GUM - ONT

GUMONT

Tamuning Guam Intl

Mon 8/10

7:05 am-8:42 pm

2 stops30h 37m

Ontario

Sat 8/22

7:13 pm-6:05 pm

2 stops53h 52m

$1,605

TamuningOntario

GUM - ONT

GUMONT

Tamuning Guam Intl

Tue 6/30

7:05 am-12:12 pm

2 stops22h 07m

Ontario

Fri 7/10

6:00 am-9:45 pm

2 stops22h 45m

$1,634

TamuningOntario

GUM - ONT

GUMONT

Tamuning Guam Intl

Wed 5/6

7:10 am-12:38 pm

2 stops22h 28m

Ontario

Wed 5/20

6:00 am-9:45 pm

2 stops22h 45m

$1,957

TamuningOntario

GUM - ONT

GUMONT

Tamuning Guam Intl

Tue 4/28

7:05 am-9:56 am

2 stops19h 51m

Ontario

Wed 5/27

6:00 am-9:45 pm

2 stops22h 45m

$1,982

TamuningOntario

GUM - ONT

GUMONT

Tamuning Guam Intl

Sun 8/2

7:05 am-12:12 pm

2 stops22h 07m

Ontario

Tue 8/18

8:00 am-9:45 pm

2 stops20h 45m

$2,057

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

How to get the cheapest flight ticket from Guam to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Guam to Ontario?

Delta and United Airlines are the most popular carriers operating from Guam to Ontario

Cheap Guam to Ontario flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Guam to Ontario

Fastest flight time	19h 51m
Direct flights	None

The fastest flight from Guam to Ontario takes 19h 51m

There are no direct flights from Guam to Ontario. There are no popular flight routes from Guam to Ontario.

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Frequently asked questions about flying from Guam to Ontario

When did momondo last update prices for flights from Guam to Ontario Airport?
Prices for flights from Guam to Ontario Airport are updated daily.
How old do you have to be to fly from Guam to Ontario Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Guam to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Guam to Ontario?

It is quick and easy to find Guam to Ontario flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Ontario that suits you.

Can I find flights from Guam to Ontario with flexible booking policies on momondo?

Flights from Guam to Ontario with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Guam to Ontario?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Guam to Ontario.

I’m not ready to book a flight from Guam to Ontario right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Guam to Ontario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ontario and let you know when they change.

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Cheap flights from Guam to Los Angeles from $1,056

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Guam to Los Angeles departing on 7/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Frequently asked questions about flying from Guam to Ontario

Why use momondo?

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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