Which airports can I use when flying from Tamuning to Ontario?

Flights from Tamuning to Ontario usually depart from Tamuning Guam Intl (GUM) and arrive at Ontario (ONT).

What cabin classes can I book on flights from Tamuning to Ontario?

Only Economy Class is available on flights from Tamuning to Ontario.

Can I save money by using flexible dates for flights from Tamuning to Ontario?

Yes. Flexible dates can save you up to 31% on flights from Tamuning to Ontario. Sunday is the cheapest departure day at $1,391 round-trip on average, while Wednesday is the most expensive at $2,003, a difference of $612. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

What popular places can I visit in Ontario?

Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

Do I need a passport to fly from Tamuning to Ontario?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Have flight prices from Tamuning to Ontario changed much recently?

Based on fares seen in the past 5 days, round-trip prices on this route were fairly steady, ranging from about $1,433 to $1,533. The highest observed fare was only about 6% higher than the lowest one.

How are flight prices from Tamuning to Ontario looking right now?

One-way fares from Tamuning to Ontario are currently lower than usual. Average one-way flight prices are about $872, which is 38% below the typical average for this route.

What is the time difference between Tamuning and Ontario?

Ontario is 17 hours behind Tamuning (Pacific Time vs Chamorro Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Ontario Airport (ONT)?

Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include: • Fox • Thrifty • Europcar • Dollar • Alamo

How much is a round-trip flight from Tamuning to Ontario?

Round-trip flights from Tamuning to Ontario typically range from $1,568 to $1,993. The lowest price found in the past 5 days was $1,433, on United Airlines.

Which airline is the cheapest to fly from Tamuning to Ontario?

United Airlines ($1,433) offered the cheapest round-trip ticket from Tamuning to Ontario in the last 5 days.

$681 CHEAP FLIGHTS from Tamuning to Ontario (GUM - ONT)

Save 19% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Cheapest round-trip

$1,433

Typical prices: $1,568-$1,993

United Airlines

Sun 10/28Wed 11/7

GUM - ONT • 2 stops

Cheapest one-way

$681

Typical prices: $1,400-$1,400

Multiple Airlines

Mon 10/22

GUM - ONT • 2 stops

Start a new search

KAYAK searches 100s of sites at once to find you the best travel deals.

We hope you love your trip to Ontario!

Cheap Flights from Tamuning to Ontario (GUM-ONT)

Cheap flights from Tamuning to Ontario with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Round-trip

One-way

Wed, Oct 28 - Sat, Nov 7

7:55 pm - 3:33 pmGUM Tamuning Guam Intl-ONT Ontario

36h 38m2 stops Tokyo Haneda San Francisco

6:00 am - 7:00 pmONT Ontario-GUM Tamuning Guam Intl

19h 00m2 stops San Francisco Honolulu

$1,433United Airlines

Thu, Oct 29 - Mon, Nov 2

7:45 am - 12:30 pmGUM Tamuning Guam Intl-ONT Ontario

21h 45m2 stops Honolulu Denver Intl

4:17 pm - 9:45 pmONT Ontario-GUM Tamuning Guam Intl

35h 28m2 stops San Francisco Tokyo Narita

$1,434United Airlines

Mon, Nov 23 - Sat, Nov 28

7:45 am - 12:33 pmGUM Tamuning Guam Intl-ONT Ontario

22h 48m2 stops Honolulu Denver Intl

6:00 am - 4:40 amONT Ontario-GUM Tamuning Guam Intl

28h 40m2 stops San Francisco Tokyo Haneda

$1,483United Airlines

Fri, Dec 11 - Mon, Jan 4

7:45 am - 5:36 pmGUM Tamuning Guam Intl-ONT Ontario

27h 51m2 stops Honolulu San Francisco

1:05 pm - 4:40 amONT Ontario-GUM Tamuning Guam Intl

45h 35m2 stops San Francisco Tokyo Haneda

$1,533United Airlines

Price, demand and travel trends for Tamuning to Ontario flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Prices

Airlines

How much is a round-trip flight from Tamuning to Ontario? This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Tamuning to Ontario departing in october.

Find deals

Cheapest flight	$681

One-way flight from Tamuning to Ontario

When to book flights from Tamuning to Ontario

Are your dates flexible? Find out the best times to travel from Tamuning to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from Tamuning to Ontario?
Only Economy Class is available on flights from Tamuning to Ontario.
Do I need a passport to fly from Tamuning to Ontario?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
Have flight prices from Tamuning to Ontario changed much recently?
Based on fares seen in the past 5 days, round-trip prices on this route were fairly steady, ranging from about $1,433 to $1,533. The highest observed fare was only about 6% higher than the lowest one.
How are flight prices from Tamuning to Ontario looking right now?
One-way fares from Tamuning to Ontario are currently lower than usual. Average one-way flight prices are about $872, which is 38% below the typical average for this route.
What car rental options are available at Ontario Airport (ONT)?
Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include:

• Fox
• Thrifty
• Europcar
• Dollar
• Alamo
Which airports can I use when flying from Tamuning to Ontario?
Flights from Tamuning to Ontario usually depart from Tamuning Guam Intl (GUM) and arrive at Ontario (ONT).
Can I save money by using flexible dates for flights from Tamuning to Ontario?
Yes. Flexible dates can save you up to 31% on flights from Tamuning to Ontario. Sunday is the cheapest departure day at $1,391 round-trip on average, while Wednesday is the most expensive at $2,003, a difference of $612.

Cheaper weekend fares like these are typical of routes dominated by weekday business travel.
What is the time difference between Tamuning and Ontario?
Ontario is 17 hours behind Tamuning (Pacific Time vs Chamorro Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in Ontario?
Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

If your dates are flexible, aim for a Sunday departure and avoid flying on Wednesday. On this route, Sunday flights average $1,391, about $612 less than Wednesday fares (31% savings) based on the last 12 months.
If you're arriving late at night and need somewhere to stay, check out these hotels close to Ontario Airport.

• Azure Hotel & Suites, Trademark Collection by Wyndham
• La Quinta Inn & Suites by Wyndham Ontario Airport
• Ontario Airport Inn

More options for your flight from Tamuning to Ontario

Add a hotel or car rental

Airports

Cabin class

Direct Flights

Origins

Other destinations

Complete your trip to Ontario with a hotel stay or car rental

Car rentals in Ontario

Hotels in Ontario

Vacations in Ontario

GUM - ONT

$681 Find Cheap Flights from Tamuning to Ontario - Compare and Save

Everything you should know

Cheap Flights from Tamuning to Ontario (GUM-ONT)

Cheap flights from Tamuning to Ontario with top airlines, updated regularly. Compare round-trip, one-way, direct and last-minute deals.

Price, demand and travel trends for Tamuning to Ontario flights

How much is a round-trip flight from Tamuning to Ontario?

Which airline is the cheapest to fly from Tamuning to Ontario?

Key details for Tamuning to Ontario flights

Cheapest flight

When to book flights from Tamuning to Ontario

Your Tamuning to Ontario flight questions, answered

Your guide to booking Tamuning to Ontario flights

More options for your flight from Tamuning to Ontario

Complete your trip to Ontario with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Tamuning to Ontario

Find direct flights to and from Tamuning and Ontario

Flights from domestic origins to Ontario

Flights to other popular destinations