$273 Find Cheap Flights from El Salvador to Ontario - Compare and Save

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 7/10. 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 El Salvador to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from El Salvador 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 El Salvador to Ontario

Fri, Jul 3 - Sun, Jul 12
Frontier Logo
11:05 am - 4:48 pm
SAL
-
ONT
30h 43m
1 stop
Frontier Logo
8:17 am - 10:02 am
ONT
-
SAL
24h 45m
1 stop
$545Frontier
Thu, Jun 25 - Thu, Sep 10
Avianca Logo
5:35 pm - 9:45 pm
SAL
-
ONT
5h 10mnonstop
Avianca Logo
11:35 pm - 5:20 am
ONT
-
SAL
4h 45mnonstop
$553Avianca
Mon, Aug 31 - Sun, Sep 6
Frontier Logo
11:00 am - 4:48 pm
SAL
-
ONT
30h 48m
1 stop
Frontier Logo
6:47 pm - 9:50 am
ONT
-
SAL
14h 03m
1 stop
$554Frontier
Mon, Aug 24 - Sun, Sep 6
United Airlines Logo
6:00 am - 9:59 pm
SAL
-
ONT
16h 59m
1 stop
United Airlines Logo
6:00 am - 2:30 pm
ONT
-
SAL
7h 30m
1 stop
$565United Airlines
Thu, Aug 27 - Sun, Sep 6
United Airlines Logo
6:00 am - 8:01 pm
SAL
-
ONT
15h 01m
2 stops
United Airlines Logo
6:00 am - 8:49 pm
ONT
-
SAL
13h 49m
1 stop
$569United Airlines
Fri, Jun 26 - Sat, Jul 11
United Airlines Logo
6:00 am - 9:55 pm
SAL
-
ONT
16h 55m
1 stop
United Airlines Logo
5:45 am - 8:49 pm
ONT
-
SAL
14h 04m
1 stop
$570United Airlines
Thu, Oct 22 - Tue, Oct 27
American Airlines Logo
1:59 pm - 9:29 am
SAL
-
ONT
20h 30m
1 stop
American Airlines Logo
12:35 pm - 12:45 pm
ONT
-
SAL
23h 10m
1 stop
$574American Airlines
Wed, Jul 8 - Tue, Jul 14
United Airlines Logo
1:15 am - 10:37 pm
SAL
-
ONT
22h 22m
2 stops
United Airlines Logo
1:50 pm - 6:58 pm
ONT
-
SAL
28h 08m
2 stops
$575United Airlines
Sat, Sep 19 - Tue, Sep 29
United Airlines Logo
3:40 pm - 6:11 pm
SAL
-
ONT
27h 31m
2 stops
United Airlines Logo
4:07 pm - 2:30 pm
ONT
-
SAL
21h 23m
2 stops
$576United Airlines
Sat, Jul 4 - Sat, Jul 11
Avianca Logo
5:35 pm - 9:45 pm
SAL
-
ONT
5h 10mnonstop
Avianca Logo
11:35 pm - 5:20 am
ONT
-
SAL
4h 45mnonstop
$577Avianca
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 day to fly to Ontario?

The average price of all round-trip flights to Ontario clicked on KAYAK for each day over the last 12 months.

Based on KAYAK data, the cheapest day to fly to Ontario is Wednesday where round-trip tickets can be as cheap as $340. On the other hand, the most expensive day to fly is Thursday, where round-trip prices are $513 on average.

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 round-trip 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 August, where tickets cost $81 on average for return flights. On the other hand, the most expensive months are June and November, where the average cost of tickets from El Salvador is $386 and $352 respectively. For one-way flights, the best month to travel is December with an average price of $106.

What is the cheapest time of day to fly to Ontario?

The average price for all round-trip flights to Ontario depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Ontario is generally in the evening, when round-trip flights cost $454 on average. The most expensive time of day to fly to Ontario is generally in the evening, which is peak travel time and where the average cost of a ticket is $454.

What is a good deal for flights to Ontario?

If you’re looking for cheap airfare to Ontario, 25% of our users found tickets to Ontario for the following prices or less: From San Salvador $569 round-trip.

How far in advance should I book a flight to Ontario?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 3 weeks before departure, which saves you about 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$273
Best time to beat the crowds but there is an average 1% increase in price.
Flight from San Salvador to Ontario

FAQs - booking Ontario flights

  • How far is Ontario Airport from central Ontario?

    The distance between Ontario Airport and downtown Ontario is 3 miles.

  • 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 much is a flight to Ontario?

    On average, a flight to Ontario costs $528. The cheapest price found on KAYAK in the last 2 weeks cost $328 and departed from San Salvador El Salvador Intl Airport.

  • 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.

Top tips for finding cheap flights to Ontario

  • Looking for cheap airfare to Ontario? 25% of our users found round-trip tickets to Ontario for the following prices or less: From San Salvador $517
  • 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 El Salvador 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 El Salvador 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 9813 reviews
7.1Entertainment
7.3Comfort
6.6Food
8.1Crew
7.7Boarding
Airline reviews

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

10.0 ExcellentClaudia, Jun 2026
SAN - SFO
Read more United Airlines reviews

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

Crew was great! Good meals. Had room to stretch out

Packed flight, which makes it tough on crew and boarding staff (and the customers of course). But this was great boarding, clear instructions, etc. Traveling on the weekends are always fraught with danger as you have families and less frequent flyers thus more confusion. But this flight went as planned.

Destroyed my suitcase. Tired of talking about it. Cancelling my unite mileage plus account.

New plane was lovely. Crew customer service is always lax but expected. Kraft on time and arrived safely.

Uncomfortable plastic seats even in premium economy. No free wifi. Even paid wifi was spotty to nonexistent. Bad food. Much worse than economy on foreign carriers like Qantas.

How can you rate a flight when it is canceled after you leave the gate & 3 hours into sitting there or in remote area of airport after mechanical problems

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

6 1/2 hours from Tampa to SFO on a Boeing 737. Cramped. No Service. No real food. One pass for coffee at the beginning and a second pass THREE hours later. And check-in in Tampa was nasty even by United standards. And I am at almost TWO million miles on United. It's a non-stop. But terrible service.

First class ticket gets you no seat back entertainment? I have to bring my own laptop to see a movie? And most of their movies have ADS? No thank you. Worse: Tiny snacks only on a 2 hr flight?

This was my first time flying with you guys and my very last! This was the most horrible experience!!! There was not even tv in the plane! How cheap can this airline be!!! I paid so much for my suitcase!!! I would never fly with this airline again! The crew are very rude!

I had bad experiences before now was excellent I am glad they have business class again

Horrible experience with Avianca, they delayed their flight and when we arrived to NYC, AVIANCA took 1 hr y 30 mins to park the airplane and all passenger get off the plane, it made me lost all my trains to get back home and I came back to my place at 3 am instead of 12 am. On the top of that their plane seat are so uncomfortable and is not enough space and killed my legs and knees, Avianca used to be good when it was a Colombian company, now after Brasilian company bought them, their service quality is bad and their flights are delayed and oversold.

Last seat of Bussines Class it does recline but passenger seating behind kept pushing since they did not have space once my seat was reclined

We waited for one hour to deboard the plane after landing. That could be better

I handed in my suitcase in perfect condition at SAL Airport. And in MIA Airport I received it with one corner broken and the wheels bent.

I like the crew members they're very friendly. Clean plane. The flight was on time. I dont like the comfort my car seat its better that the plane seats. They charge for everything. This airline was very good. Now it's a low cost airline

6 hour flight and have to pay for everything 100 dollars to add a carry-on bag is insane

The check in is the only positive thing in Avianca. The seat is the most uncomfortable I have traveled, the distance is minimal.

Not what it used to be. The sale of food makes them look greedy!

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario