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

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

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Tamuning Guam Intl Airport to Ontario Airport.

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

The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$698 Cheap Flights from Tamuning to Ontario in 2025/26

1 adult

0 bags

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Find the cheapest flights from Tamuning to Los Angeles

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Cheap round-trip flights

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7:40 am - 11:18 am

GUM

ONT

21h 38m2 stops

6:00 am - 9:45 pm

ONT

GUM

21h 45m2 stops

$1,419United Airlines

dom., ene. 18 - lun., ene. 26

7:05 am - 5:47 pm

GUM

ONT

27h 42m2 stops

6:53 pm - 4:25 am

ONT

GUM

40h 32m2 stops

$1,430United Airlines

sáb., abr. 4 - dom., abr. 19

7:05 am - 10:57 pm

GUM

ONT

33h 52m2 stops

6:37 pm - 6:50 pm

ONT

GUM

31h 13m2 stops

$1,435United Airlines

jue., mar. 5 - lun., mar. 9

7:40 am - 5:41 pm

GUM

ONT

28h 01m3 stops

6:37 pm - 6:50 pm

ONT

GUM

31h 13m2 stops

$1,450United Airlines

jue., mar. 5 - lun., mar. 9

United Airlines flights from Tamuning to Ontario

Our best United Airlines deals on Tamuning to Ontario flight tickets

United Airlines

Jan 18

GUM7:40 amTamuning Guam Intl

21h 38m

2 stops

ONT11:18 amOntario

Jan 26

ONT6:00 amOntario

21h 45m

2 stops

GUM9:45 pmTamuning Guam Intl

$1,419

Find similar

United Airlines

Apr 4

GUM7:05 amTamuning Guam Intl

27h 42m

2 stops

ONT5:47 pmOntario

Apr 19

ONT6:53 pmOntario

40h 32m

2 stops

GUM4:25 amTamuning Guam Intl

$1,430

Find similar

United Airlines

Mar 5

GUM7:05 amTamuning Guam Intl

33h 52m

2 stops

ONT10:57 pmOntario

Mar 9

ONT6:37 pmOntario

31h 13m

2 stops

GUM6:50 pmTamuning Guam Intl

$1,435

Find similar

Fly from

Fly to

Route

Depart

Return

Price

TamuningOntario

GUM - ONT

GUMONT

Tamuning Guam Intl

dom. 1/18

7:40 am-11:18 am

2 stops21h 38m

Ontario

lun. 1/26

6:00 am-9:45 pm

2 stops21h 45m

$1,419

TamuningOntario

GUM - ONT

GUMONT

Tamuning Guam Intl

sáb. 4/4

7:05 am-5:47 pm

2 stops27h 42m

Ontario

dom. 4/19

6:53 pm-4:25 am

2 stops40h 32m

$1,430

TamuningOntario

GUM - ONT

GUMONT

Tamuning Guam Intl

jue. 3/5

7:05 am-10:57 pm

2 stops33h 52m

Ontario

lun. 3/9

6:37 pm-6:50 pm

2 stops31h 13m

$1,435

TamuningOntario

GUM - ONT

GUMONT

Tamuning Guam Intl

jue. 3/5

7:40 am-5:41 pm

3 stops28h 01m

Ontario

lun. 3/9

6:37 pm-6:50 pm

2 stops31h 13m

$1,450

TamuningOntario

GUM - ONT

GUMONT

Tamuning Guam Intl

mar. 12/16

2:15 am-6:33 pm

3 stops34h 18m

$698

TamuningOntario

GUM - ONT

GUMONT

Tamuning Guam Intl

mié. 12/17

3:30 am-12:14 am

2 stops38h 44m

$732

TamuningOntario

GUM - ONT

GUMONT

Tamuning Guam Intl

mié. 12/17

3:30 am-12:14 am

3 stops38h 44m

$748

TamuningOntario

GUM - ONT

GUMONT

Tamuning Guam Intl

mar. 12/16

4:15 pm-6:33 pm

3 stops44h 18m

$755

TamuningOntario

GUM - ONT

GUMONT

Tamuning Guam Intl

mié. 12/17

4:10 pm-12:14 am

2 stops50h 04m

$793

TamuningOntario

GUM - ONT

GUMONT

Tamuning Guam Intl

dom. 12/21

2:15 am-10:08 pm

3 stops37h 53m

$895

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first

How to get the cheapest flight ticket from Tamuning 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 day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Thursday when prices can be found for as low as $1,390. This is often the case because there is less demand to fly during this day of the week. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Tamuning to Ontario for around $2,005.

When to book flights from Tamuning to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Tamuning to Ontario according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Tamuning to Ontario (GUM to ONT) flight deals and tips

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

Fastest flight time	21h 38m
Direct flights	None

The fastest flight from Tamuning to Ontario takes 21h 38m

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

Search flight deals

How far is Tamuning Guam Intl to Ontario by plane?
There are 6117.0 mi between Tamuning Guam Intl and Ontario. Typically, this will take 21h 38m by plane in normal conditions.
When did momondo last update prices for flights from Tamuning Guam Intl Airport to Ontario Airport?
Prices for flights from Tamuning Guam Intl Airport to Ontario Airport are updated daily.
How old do you have to be to fly from Tamuning Guam Intl Airport to Ontario Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Tamuning Guam Intl Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Tamuning to Ontario. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Ontario from Tamuning with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ontario from Tamuning.

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

Yes. momondo can track prices for Tamuning to Ontario flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.