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$122+ Cheap flights from Guatemala City (GUA) to Ontario (ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
GUA — ONT
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Guatemala City to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Guatemala City (GUA) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$209
(Cheapflightsfares)

One-way from

$122
(Justfly.com)

Popular in

January

Cheapest in

September

Average price

$210
From Guatemala City La Aurora to Ontario
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One-way flight from Guatemala City La Aurora to Ontario
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Highest demand for flights based on searches. 25% potential increase in price ($176 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Guatemala City to Ontario

Cheapest flights from Guatemala City to Ontario
Explore the most affordable flight options available from Guatemala City to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Mytrip deal was found by Cheapflights users on 9/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/210:00 amGUA - ONT
1 stop12h 55mAvianca
Tue 10/1411:25 pmONT - GUA
1 stop8h 40mAvianca
Deal found 9/8$206
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2310:00 amGUA - ONT
1 stop12h 55mAvianca
Tue 10/711:25 pmONT - GUA
1 stop8h 40mAvianca
Deal found 9/9$209
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/45:20 amGUA - ONT
1 stop17h 35mAvianca
Tue 10/711:25 pmONT - GUA
1 stop8h 40mAvianca
Deal found 9/9$219
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1110:00 amGUA - ONT
1 stop12h 55mAvianca
Thu 9/1811:25 pmONT - GUA
1 stop8h 40mAvianca
Deal found 9/10$221
This American Airlines deal was found by Cheapflights users on 9/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/43:19 pmGUA - ONT
2 stops22h 44mAmerican Airlines
Sun 11/97:30 pmONT - GUA
2 stops16h 29mAmerican Airlines
Deal found 9/11$231
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/710:00 amGUA - ONT
1 stop12h 55mAvianca
Tue 10/2811:30 pmONT - GUA
1 stop8h 30mAvianca
Deal found 9/10$257
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/205:20 amGUA - ONT
1 stop17h 35mAvianca
Tue 9/2311:25 pmONT - GUA
1 stop8h 40mAvianca
Deal found 9/10$267
This Gotogate deal was found by Cheapflights users on 9/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2510:00 amGUA - ONT
1 stop12h 55mAvianca
Tue 9/3011:25 pmONT - GUA
1 stop18h 10mAvianca
Deal found 9/10$270
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/910:00 amGUA - ONT
1 stop12h 55mAvianca
Tue 9/1611:25 pmONT - GUA
1 stop18h 10mAvianca
Deal found 9/9$277
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1110:00 amGUA - ONT
1 stop12h 55mAvianca
Thu 4/911:25 pmONT - GUA
1 stop8h 40mAvianca
Deal found 9/10$305
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1610:00 amGUA - ONT
1 stop12h 55mAvianca
Tue 9/2311:25 pmONT - GUA
1 stop8h 40mAvianca
Deal found 9/9$306
This Priceline deal was found by Cheapflights users on 9/8. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/910:00 amGUA - ONT
1 stop12h 55mAvianca
Tue 9/2311:25 pmONT - GUA
1 stop8h 40mAvianca
Deal found 9/8$309

Cheapflights Fare Finder

 
Customize your flight search to find flights from Guatemala City to Ontario 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 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Guatemala City to Ontario that are best for you.

Fly from

Guatemala City

Fly to

Ontario

Route

Depart

Return

Price

Guatemala CityOntario

GUA - ONT

GUAONT

Guatemala City La Aurora

Fri 10/17

12:38 pm-9:24 pm

1 stop9h 46m

Ontario

Tue 10/21

6:00 am-6:49 pm

1 stop11h 49m

$368

Guatemala CityOntario

GUA - ONT

GUAONT

Guatemala City La Aurora

Wed 10/8

1:50 pm-9:24 pm

1 stop8h 34m

Ontario

Tue 10/21

6:00 am-6:49 pm

1 stop11h 49m

$368

Guatemala CityOntario

GUA - ONT

GUAONT

Guatemala City La Aurora

Tue 9/16

6:15 am-9:25 pm

1 stop16h 10m

Ontario

Tue 9/23

6:04 am-4:32 pm

1 stop9h 28m

$368

Guatemala CityOntario

GUA - ONT

GUAONT

Guatemala City La Aurora

Tue 9/16

6:15 am-9:25 pm

1 stop16h 10m

Ontario

Tue 9/30

6:00 am-6:49 pm

1 stop11h 49m

$368

Guatemala CityOntario

GUA - ONT

GUAONT

Guatemala City La Aurora

Wed 11/19

1:28 pm-10:31 pm

1 stop11h 03m

Ontario

Wed 12/3

6:00 am-7:39 pm

2 stops11h 39m

$368

Guatemala CityOntario

GUA - ONT

GUAONT

Guatemala City La Aurora

Thu 10/2

6:15 am-9:24 pm

1 stop16h 09m

Ontario

Sat 10/4

6:51 pm-4:32 pm

2 stops20h 41m

$372

Guatemala CityOntario

GUA - ONT

GUAONT

Guatemala City La Aurora

Thu 10/2

6:15 am-10:52 pm

2 stops17h 37m

Ontario

Tue 10/14

1:53 pm-11:24 am

2 stops20h 31m

$372

Guatemala CityOntario

GUA - ONT

GUAONT

Guatemala City La Aurora

Fri 10/31

1:10 am-10:51 pm

2 stops22h 41m

Ontario

Sat 11/29

6:05 am-7:39 pm

1 stop11h 34m

$372

Guatemala CityOntario

GUA - ONT

GUAONT

Guatemala City La Aurora

Wed 9/24

6:15 am-8:43 pm

2 stops15h 28m

Ontario

Wed 10/1

6:00 am-4:32 pm

1 stop9h 32m

$372

Guatemala CityOntario

GUA - ONT

GUAONT

Guatemala City La Aurora

Wed 10/8

6:15 am-8:24 pm

2 stops15h 09m

Ontario

Sun 11/2

6:38 pm-12:26 pm

2 stops15h 48m

$372

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 21 results
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Best time to book a flight from Guatemala City to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Guatemala City 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.

Cheapflights Insights

Everything you need to know about your flight from Guatemala City to Ontario

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

Currently, August is the cheapest month in which you can book a flight from Guatemala City to Ontario (average of $246). Flying from Guatemala City to Ontario in March is currently the most expensive (average of $328). 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.

What is the cheapest time of day to fly from GUA to ONT?

Find hourly flight availability from Guatemala City to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

A simple way to save on the total cost of your ticket is to fly from Guatemala City to Ontario at noon. If you’re flexible enough to do this you can expect to save up to 24% on your trip compared to booking a flight in the morning.

How much does it cost to fly round-trip from Guatemala City to Ontario?

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated September 11, 2025.
Read through reviews of airlines operating flights from Guatemala City to Ontario, such as United Airlines and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,937 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,937 reviews

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.6

Crew

8.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

Find useful and relevant information for your journey from Guatemala City to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Guatemala City to Ontario?

    United Airlines can get you from Guatemala City to Ontario in just under 9h 46m. Your travel time can differ by up to . Airlines will cover a distance of 2157 mi.

  • What are the cheapest airlines flying from Guatemala City to Ontario round-trip?

    Our cheapest airline available from Guatemala City to Ontario is United Airlines. Our recent data shows that you can find tickets from as low as $345 on this airline. An additional option worth looking into is American Airlines, starting at $353. These flights start at 32% lower than the current average price 3 months from now.

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

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

  • How can I find direct flights from Guatemala City to Ontario?

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Guatemala City to Ontario (average of $246). Flying from Guatemala City to Ontario in March is currently the most expensive (average of $328). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Guatemala City to Ontario

Discover the top 2 airlines that operate flights from Guatemala City to Ontario. 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 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$345Average$432FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$353Average$640FlexibilityNo cancel feeOn-time71%

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