What are the cheapest airlines flying from Ontario to Medellín round-trip?

According to our current data, Avianca ($491), and United Airlines ($507) offers the cheapest pricing from Ontario to Medellín. You may be able to fly from Ontario to Medellín for 31% less than the average price by searching for these airlines.

In terms of precipitation, rainfall in Medellín ranges from 2.0 - 7.9 inches per month. October is typically the wettest month, when rainfall can reach 7.9 in. January is typically the driest time to visit Medellín when rainfall is around 2.0 in.

If weather is an important factor for your trip to Medellín, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of October, when temperatures are typically at their lowest (around 69.8 F).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Medellín as you normally would.

What airport do you fly from for flights from Ontario to Medellín?

Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Medellín from Ontario. Booking flights from Ontario (ONT) to Medellín should be relatively easy as there are 0 daily outbound flights to Medellín from 2 different airlines.

Can I find deals for flights from Ontario to Medellín that include hotel bookings?

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

How can I find direct flights from Ontario to Medellín?

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

Can I find deals for business class flights from Ontario to Medellín?

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

Find Cheap Flights from Ontario to Medellín

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Find flight deals from Ontario to Medellín

Popular in	December
Cheapest in	January
Average price	$570

Highest demand for flights based on searches. 6% potential increase in price ($48 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 7% potential price decrease ($48 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2026

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Best time to book a flight from Ontario to Medellín

Have a flexible travel schedule? Discover the best time to fly to Medellín from Ontario with our price prediction graph.

ONT-CO1

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.

Reviews of airlines servicing Medellín

Read through reviews of airlines operating flights from Ontario to Medellín, such as United Airlines and Avianca. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

10,366 reviews

Reviews

1 / 20

4.0

Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

United Airlines

7.4

Good

10,366 reviews

United Airlines

7.4

Good

10,366 reviews

Reviews

1 / 20

4.0

Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Avianca

6.5

Okay

2,553 reviews

United Airlines

7.4

Good

10,366 reviews

Reviews

1 / 20

4.0

Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Related info for your journey

What airport do you fly from for flights from Ontario to Medellín?
Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Medellín from Ontario. Booking flights from Ontario (ONT) to Medellín should be relatively easy as there are 0 daily outbound flights to Medellín from 2 different airlines.
What are the cheapest airlines flying from Ontario to Medellín round-trip?
According to our current data, Avianca ($491), and United Airlines ($507) offers the cheapest pricing from Ontario to Medellín. You may be able to fly from Ontario to Medellín for 31% less than the average price by searching for these airlines.
Can I find deals for flights from Ontario to Medellín that include hotel bookings?
Yes. In addition to deals on Ontario to Medellín flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Medellín?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Medellín.
Can I find deals for business class flights from Ontario to Medellín?
Yes. Cheapflights offers flight deals from Ontario to Medellín by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top 2 airlines flying from Ontario to Medellín

Airline	Cheapest	Average	Flexibility	On-time
Avianca	Cheapest$491	Average$610	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$507	Average$675	FlexibilityNo cancel fee	On-time69%

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Find cheap flights from Ontario to Medellín with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Ontario to Medellín

Popular in

Cheapest in

Average price

Best time to book a flight from Ontario to Medellín

Have a flexible travel schedule? Discover the best time to fly to Medellín from Ontario with our price prediction graph.

Reviews of airlines servicing Medellín

Read through reviews of airlines operating flights from Ontario to Medellín, such as United Airlines and Avianca. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Ontario to Medellín?

What are the cheapest airlines flying from Ontario to Medellín round-trip?

Can I find deals for flights from Ontario to Medellín that include hotel bookings?

How can I find direct flights from Ontario to Medellín?

Can I find deals for business class flights from Ontario to Medellín?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Medellín

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Medellín by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Ontario to Medellín by cabin class

Find flights from Ontario to Medellín, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Ontario and Medellín flights

Browse other Ontario and Medellín flight options. Last updated on October 15, 2026.

Other flights from Ontario

Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on October 15, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Top 2 airlines flying from Ontario to Medellín

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Cheap flights from Ontario (ONT) to Medellín

Find cheap flights from Ontario to Medellín with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Ontario to Medellín

Popular in

Cheapest in

Average price

Best time to book a flight from Ontario to Medellín

Have a flexible travel schedule? Discover the best time to fly to Medellín from Ontario with our price prediction graph.

Reviews of airlines servicing Medellín

Read through reviews of airlines operating flights from Ontario to Medellín, such as United Airlines and Avianca. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly from for flights from Ontario to Medellín?

What are the cheapest airlines flying from Ontario to Medellín round-trip?

Can I find deals for flights from Ontario to Medellín that include hotel bookings?

How can I find direct flights from Ontario to Medellín?

Can I find deals for business class flights from Ontario to Medellín?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Medellín

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Medellín by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Ontario to Medellín by cabin class

Find flights from Ontario to Medellín, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Ontario and Medellín flights

Browse other Ontario and Medellín flight options. Last updated on October 15, 2026.

Other flights from Ontario

Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on October 15, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Top 2 airlines flying from Ontario to Medellín

100% Free

Book with Flexibility

Travel Smart