$194 Find Cheap Flights from Guatemala to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ontario departing on 5/28. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Ontario, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Guatemala to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Guatemala to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Guatemala to Ontario

Thu, Jul 9 - Sat, Jul 25
Frontier Logo
11:16 am - 4:43 pm
GUA
-
ONT
30h 27m
1 stop
Frontier Logo
6:47 pm - 10:10 am
ONT
-
GUA
14h 23m
1 stop
$353Frontier
Thu, Jul 9 - Sat, Jul 25
Frontier Logo
11:16 am - 4:43 pm
GUA
-
ONT
30h 27m
1 stop
Frontier Logo
6:47 pm - 10:10 am
ONT
-
GUA
14h 23m
1 stop
$369Frontier
Thu, Jul 9 - Wed, Jul 22
Frontier Logo
11:16 am - 4:43 pm
GUA
-
ONT
30h 27m
1 stop
Frontier Logo
6:47 pm - 10:10 am
ONT
-
GUA
14h 23m
1 stop
$377Frontier
Sun, Jun 14 - Sat, Aug 8
Frontier Logo
3:47 pm - 7:51 pm
GUA
-
ONT
29h 04m
2 stops
Frontier Logo
6:47 pm - 10:10 am
ONT
-
GUA
14h 23m
1 stop
$418Frontier
Fri, Sep 25 - Mon, Sep 28
United Airlines Logo
6:15 am - 9:58 pm
GUA
-
ONT
16h 43m
1 stop
United Airlines Logo
6:00 am - 6:49 pm
ONT
-
GUA
11h 49m
1 stop
$441United Airlines
Wed, Sep 9 - Tue, Sep 22
United Airlines Logo
1:30 am - 12:12 pm
GUA
-
ONT
11h 42m
2 stops
United Airlines Logo
5:45 am - 4:37 pm
ONT
-
GUA
9h 52m
1 stop
$445United Airlines
Thu, Sep 24 - Tue, Sep 29
American Airlines Logo
12:04 pm - 11:06 pm
GUA
-
ONT
12h 02m
1 stop
American Airlines Logo
1:31 pm - 11:00 am
ONT
-
GUA
20h 29m
2 stops
$455American Airlines
Thu, Sep 10 - Fri, Sep 18
United Airlines Logo
1:30 am - 9:59 pm
GUA
-
ONT
21h 29m
1 stop
United Airlines Logo
5:45 am - 4:37 pm
ONT
-
GUA
9h 52m
1 stop
$463United Airlines
Thu, Jul 9 - Sat, Jul 25
Frontier Logo
11:16 am - 11:50 pm
GUA
-
ONT
13h 34m
2 stops
Frontier Logo
6:47 pm - 10:10 am
ONT
-
GUA
14h 23m
1 stop
$466Frontier
Sat, Jul 18 - Wed, Jul 22
Frontier Logo
3:47 pm - 3:07 pm
GUA
-
ONT
24h 20m
2 stops
Frontier Logo
6:47 pm - 10:10 am
ONT
-
GUA
14h 23m
1 stop
$470Frontier
Booking Insights

KAYAK's insights & trends for flights to Ontario

Get data-powered insights and trends for flights to Ontario to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Ontario?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to Ontario was found on the route from Guatemala City, at $353 return. The most popular connection is from Seattle to Ontario and KAYAK users have found round-trip deals for as low as $144 in the last 3 days.

What is the cheapest month to fly to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Ontario is September, where tickets cost $210 on average for return flights. On the other hand, the most expensive months are March and December, where the average cost of tickets from Guatemala is $680 and $592 respectively. For one-way flights, the best month to travel is September with an average price of $210.

Good to know

Low seasonMarch
Cheapest flight$194
Best time to beat the crowds but there is an average 47% increase in price.
Most popular time to fly with an average 25% increase in price.
Flight from Guatemala City to Ontario

FAQs - booking Ontario flights

  • What is the cheapest flight to Ontario?

    In the last 3 days, the cheapest flight deal to Ontario was found on the route from Guatemala City, at $353 return. The most popular connection is from Seattle to Ontario and KAYAK users have found round-trip deals for as low as $144 in the last 3 days.

  • How far is Ontario Airport from central Ontario?

    Ontario Airport is 3 miles from the center of Ontario.

  • What is the name of Ontario’s airport?

    When flying to Ontario, you'll arrive at Ontario Airport (ONT). The airport is also known as Ontario or Ontario Intl.

  • How does KAYAK find such low prices on flights to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to Ontario are there each week?

    Each week there are around 964 direct flights from within Guatemala to Ontario. The most common day for departures is Sunday, with 17% of flights taking off on this day.

Top tips for finding cheap flights to Ontario

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Ontario flight deals.

Reviews of the top airlines flying from Guatemala to Ontario

 
See real verified KAYAK customer reviews for airlines flying to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Guatemala to Ontario. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9678 reviews
6.6Food
7.3Comfort
7.7Boarding
7.1Entertainment
8.1Crew
Airline reviews

Flew steerage class. Short on leg room unless you pay more. No window unless you pay more. Etc. United is trying to squeeze every cent from you. It doesn’t make for any loyalty.

6.0 GoodAnonymous, Apr 2026
HND - SFO
Read more United Airlines reviews

Flew steerage class. Short on leg room unless you pay more. No window unless you pay more. Etc. United is trying to squeeze every cent from you. It doesn’t make for any loyalty.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

Outstanding service, great food, friendly & efficient crew, safe & comfortable flight

Staff were not attentive, wifi did not work, cut my head in the bathroom due to the position of the soap on the sink, had blood running down my face, told staff, they had no expression no sympathy, didn't even say "sorry", they said "oh we will have a look at that" about 10 mins later the purser brought me a bandaid, still no sorry.... Shocking

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

The flight was delayed from take off because only one runway was operational in San Francisco.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Dinner was good, but the breakfast served in the morning was horrible.

Packed in plane small uncomfortable seats elbow to elbow nobody wants to be in that situation for the money they paid

Checking in united could not figure out my star alliance gold. Baggage did not get marked priority and didn't receive boarding passes. When got to SFO lounge personal fixed everything Immediately

American delayed the flight for a crew rest period. The delay occurred late in the evening - the earliest i can find is 10:20 pm. With a 6 am flight anyone on the flight would have already have been asleep (unless you are insane, a vampire or on drugs) and at least for me i was already on the way to the airport at 445 am the next morning when i discovered they delayed the flight until 9 am. Given the incoming flight was in the air at 6 pm the evening before this should have been figured out a lot more timely that was there only crew to use. Just frustrating given there is no consideration for customer experience anymore in flying.

Flight: Started on time. Comfortable flight. Arrived on time. Crew: Very cordial and helpful. Drinks and snack was served with a smile. Overall enjoyed the trip. Regards, Hari Doss Chanchala Doss

To have arrived on time and not 3 hours late after having already spent $100 to change to an earlier flight, only to arrive back home close to the original flight time.

American Airlines is a miserable experience. It is predictably miserable, in the sense that every time I fly American, I brace myself for the certainty that it will be unpleasant and uncomfortable. But it is unpredictable in the sense that I never know if the flight will be on time or delayed nine hours (both happened to me this week). I never know if I will be able to sit in the seat that I selected when I purchased the ticket or if I will be told by Customer Service (!!!) that I must relocate from first class to a seat in the back of the aircraft with no explanation (both happened to me this week). Will the food be frozen and half defrosted, or scalding hot? Will the drinks be warm? Will the flight attendants be surly and mean? Will the toilets be cramped and foul? Will the seats be narrow and uncomfortable? Will there be a real electric outlet at the seat, or just an unreliable USB-2 port? Will there be enough seats in the boarding lounge or just a few? Will the boarding process be smooth and efficient, or will the gate agents mess it up and delay it needlessly for 30 or 40 minutes? Will the catering and cleaning crew be prompt or will they take an extra 30 minutes? Will the brakes on the aircraft work properly, or will the pilot delay takeoff for four hours while the ground crew attends to what can only be described as routine maintenance that should have been done the night before? I've eexperienced every one of these unpleasant things this year, 2026. The only thing I can reliably count on is that American will find a new way to make the experience of flying as miserable as they possibly can.

Wifi was spotty. Tray table was very dirty when I sat down.

The WiFi would not connect enough for me to do my actual work. It permaspooled, disconnected, said it was connected, then wouldn't open an email... it was frustrating. I am not a tall person, 5'4" - and I felt cramped with little room to reach into my bag under the seat in front of me. I feel sorry for anyone taller than me having to fly. the one positive thing I will add, is the overhead bins are roomy enough to manage more bags than other carriers.

Buying ticket from kayak instant booking was a huge mistake, never to be repeated again! The Kayak didn’t book the tickets directly, it handed it off to a third party Underpricer, that booked a code shared American Airlines flight operated by Cathay Pacific!! When managing the booking American Airlines would recognize the itinerary but wouldn’t let me do anything stating, the flight is operated by Cathay Pacific so go to their website. Cathay Pacific would recognize the itinerary, neither by reservation ID or ticket number…asking to reach out to the third party Underpricer….calling Underpricer resulted in no help like seat requests, mileage number or upgrade request, 15hr layover accommodation voucher guidance…so net in net avoid booking through three layers of intermediaries

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Flight was on time. Cabin attendants made no recognition of my name or being an Advantage Executive Platinum member.

Delayed for mechanical and no updates on what was happening and how long the delay might be.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario