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$121+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
GUA — ONT
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
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 julio 30, 2025.

Round-trip from

$209
(Cheapflightsfares)

One-way from

$121
(Justfly.com)

Popular in

January

Cheapest in

September

Average price

$353
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. 22% potential increase in price ($156 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in July 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 julio 30, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/29. 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.
jue. 9/1110:00 amGUA - ONT
1 stop12h 55mAvianca
jue. 9/1811:25 pmONT - GUA
1 stop8h 40mAvianca
Deal found 7/29$209
This American Airlines deal was found by Cheapflights users on 7/28. 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.
lun. 8/412:40 amGUA - ONT
2 stops18h 28mAmerican Airlines
vie. 8/1510:29 pmONT - GUA
2 stops20h 01mAmerican Airlines
Deal found 7/28$227
This United Airlines deal was found by Cheapflights users on 7/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/136:15 amGUA - ONT
2 stops17h 37mUnited Airlines
lun. 8/186:00 amONT - GUA
1 stop9h 32mUnited Airlines
Deal found 7/30$368
This American Airlines deal was found by Cheapflights users on 7/29. 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.
mié. 8/68:29 amGUA - ONT
2 stops16h 46mMultiple Airlines
dom. 8/107:02 pmONT - GUA
2 stops21h 18mMultiple Airlines
Deal found 7/29$390
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/1012:56 pmGUA - ONT
1 stop10h 16mDelta
vie. 10/1710:29 pmONT - GUA
1 stop12h 02mDelta
Deal found 7/29$423

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 julio 30, 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

jue. 9/11

10:00 am-9:55 pm

1 stop12h 55m

Ontario

jue. 9/18

11:25 pm-9:05 am

1 stop8h 40m

$209

Guatemala CityOntario

GUA - ONT

GUAONT

Guatemala City La Aurora

lun. 8/4

12:40 am-6:08 pm

2 stops18h 28m

Ontario

vie. 8/15

10:29 pm-7:30 pm

2 stops20h 01m

$227

Guatemala CityOntario

GUA - ONT

GUAONT

Guatemala City La Aurora

mié. 8/13

6:15 am-10:52 pm

2 stops17h 37m

Ontario

lun. 8/18

6:00 am-4:32 pm

1 stop9h 32m

$368

Guatemala CityOntario

GUA - ONT

GUAONT

Guatemala City La Aurora

mié. 8/6

8:29 am-12:15 am

2 stops16h 46m

Ontario

dom. 8/10

7:02 pm-5:20 pm

2 stops21h 18m

$390

Guatemala CityOntario

GUA - ONT

GUAONT

Guatemala City La Aurora

vie. 10/10

12:56 pm-10:12 pm

1 stop10h 16m

Ontario

vie. 10/17

10:29 pm-11:31 am

1 stop12h 02m

$423

Guatemala CityOntario

GUA - ONT

GUAONT

Guatemala City La Aurora

jue. 9/11

10:00 am-9:55 pm

1 stop12h 55m

$121

Guatemala CityOntario

GUA - ONT

GUAONT

Guatemala City La Aurora

sáb. 9/20

8:30 am-11:56 am

2 stops28h 26m

$147

Guatemala CityOntario

GUA - ONT

GUAONT

Guatemala City La Aurora

mié. 8/13

6:15 am-9:37 pm

1 stop16h 22m

$207

Guatemala CityOntario

GUA - ONT

GUAONT

Guatemala City La Aurora

lun. 8/11

12:22 pm-4:20 pm

2 stops28h 58m

$266

Guatemala CityOntario

GUA - ONT

GUAONT

Guatemala City La Aurora

dom. 8/17

1:30 am-10:52 pm

1 stop22h 22m

$291

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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 julio 30, 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.

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 julio 30, 2025.
Read through reviews of airlines operating flights from Guatemala City to Ontario, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,896 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Avianca
6.7
Okay
2,387 reviews
Delta
8.0
Very good
7,980 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

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

    Our cheapest airline available from Guatemala City to Ontario is Avianca. Our recent data shows that you can find tickets from as low as $209 on this airline. Additional options worth looking into are American Airlines and United Airlines, starting at $227 and $368 round-trip. These flights start at 60% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Guatemala City to Ontario one-way?

    The cheapest airline one-way is Avianca, with whom users have recently found tickets for as low as $121. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Guatemala City to Ontario for a low price.

  • 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 julio 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$345Average$461FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$596Average$640FlexibilityNo cancel feeOn-time71%

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