Cheap flights from Ontario (ONT) to Mexico City (MEX) from $115

This is the cheapest one-way flight price, found on 9/20. Prices may vary by date and flight preferences.
ONT — MEX
Sep 26 — Oct 31

How to find the cheapest flight from Ontario (ONT) to Mexico City (MEX)

All the information you need to plan the best ONT to MEX flight in 2023: compare Ontario to Mexico City flight prices with the expected peak season, weather and rainfall in Mexico City.

Popular in

December

Cheapest in

April

Round-trip from

$386

One-way from

$192
High demand for flights, 34% potential price rise
Best time to find cheap flights, 21% potential price drop
From Ontario to Mexico City Benito Juarez
One-way flight from Ontario to Mexico City Benito Juarez

ONT - MEX

Price

$386 - $820

MEX

Temperature

55.4 - 66.2 °F

MEX

Rainfall

0 - 4.7 inches

What is the cheapest day to fly round-trip from Ontario to Mexico City?

Users have found that flying from Ontario to Mexico City on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

Find a great deal and save up to 38% by booking at least 61 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Ontario to Mexico City within the next two weeks, with the cheapest ticket starting at $404.

What is the cheapest month to fly from Ontario to Mexico City?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, May can be a great choice for travel to Mexico City. Flights to Mexico City from Ontario in May are about $367 on average during May, but can be found for as low as $211.

When is the cheapest time to fly from Ontario to Mexico City (ONT - MEX)?

Unlike in the morning, when flights are generally more expensive, you can save up to 30% on flights from Ontario to Mexico City by exploring options for tickets at noon.

Cheap Delta flights from Ontario to Mexico City

Find some of the cheapest Delta flights traveling from Ontario to Mexico City. It's recommended that users confirm their flight details before booking.

Cheap Volaris flights from Ontario to Mexico City

Have a look at some of the cheapest available Volaris flights departing from Ontario and landing in Mexico City. Make sure to examine the flight information before completing your reservation.

Cheap Ontario to Mexico City flights in September & October 2023

The best prices found for ONT to MEX flights for September, October
Listed are some of the best fares we've found on flights departing from Ontario to Mexico City in 2023. Check back regularly for other flight deals.

Ontario to Mexico City 2023 flight deals

Cheap flights to Mexico City from Ontario found for this year
Listed are some of the best fares we've found on flights departing from Ontario to Mexico City in 2023. Check back regularly for other flight deals.

Ontario to Mexico City flights leaving soon

Late deals on return flights to Mexico City from Ontario, departing today and this week
Have a look at some of the flights available from Ontario to Mexico City departing last-minute. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.

One-way flights to Mexico City from Ontario

The cheapest one-way flights from Ontario to Mexico City
Take a look at some of the best available options we've come across on one-way flights from Ontario to Mexico City. Those seeking round-trip flights from Ontario to Mexico City should utilize the search form at the the top of the page.

Find flights from Ontario to Mexico City within your budget

Use the slider to find flights from Ontario to Mexico City that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$301 - $527

Route

Depart

Return

Price

OntarioMexico City Benito Juarez

ONT - MEX

ONTMEX

Ontario

Wed 10/18

2 stops27h 20m

Mexico City Benito Juarez

Wed 10/25

1 stop10h 27m

OntarioMexico City Benito Juarez

ONT - MEX

ONTMEX

Ontario

Sat 10/14

1 stop10h 55m

Mexico City Benito Juarez

Thu 11/30

1 stop6h 22m

OntarioMexico City Benito Juarez

ONT - MEX

ONTMEX

Ontario

Fri 10/27

1 stop21h 53m

Mexico City Benito Juarez

Sat 11/4

1 stop12h 30m

OntarioMexico City Benito Juarez

ONT - MEX

ONTMEX

Ontario

Sat 10/14

2 stops14h 45m

Mexico City Benito Juarez

Thu 11/30

1 stop6h 22m

OntarioMexico City Benito Juarez

ONT - MEX

ONTMEX

Ontario

Sun 11/5

1 stop6h 03m

Mexico City Benito Juarez

Thu 11/9

1 stop7h 02m

OntarioMexico City Benito Juarez

ONT - MEX

ONTMEX

Ontario

Thu 2/1

1 stop9h 50m

Mexico City Benito Juarez

Sun 2/11

2 stops18h 40m

OntarioMexico City Benito Juarez

ONT - MEX

ONTMEX

Ontario

Thu 2/22

1 stop9h 50m

Mexico City Benito Juarez

Sat 3/2

2 stops18h 40m

OntarioMexico City Benito Juarez

ONT - MEX

ONTMEX

Ontario

Tue 2/6

1 stop11h 00m

Mexico City Benito Juarez

Thu 2/22

1 stop9h 16m

OntarioMexico City Benito Juarez

ONT - MEX

ONTMEX

Ontario

Tue 2/6

1 stop12h 50m

Mexico City Benito Juarez

Thu 2/22

1 stop17h 46m

Flights are sorted by cheapest first

Deals found on 9/20

Reviews of airlines servicing Mexico City

Get a feel of what it's like to fly with Delta, Volaris and Avianca from Ontario to Mexico City by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
3,016 reviews

Entertainment

7.8

Boarding

8.0

Food

7.2

Comfort

7.9

Crew

8.5

Overall

7.9

Reviews

1 / 10

No wifi on the plane even though there was a signal.

Delta
7.9
Good
3,016 reviews
Delta
7.9
Good
3,016 reviews

Entertainment

7.8

Boarding

8.0

Food

7.2

Comfort

7.9

Crew

8.5

Overall

7.9

Reviews

1 / 10

No wifi on the plane even though there was a signal.

United Airlines
7.4
Good
1,890 reviews
Delta
7.9
Good
3,016 reviews

Entertainment

7.8

Boarding

8.0

Food

7.2

Comfort

7.9

Crew

8.5

Overall

7.9

Reviews

1 / 10

No wifi on the plane even though there was a signal.

American Airlines
7.2
Good
2,635 reviews
Delta
7.9
Good
3,016 reviews

Entertainment

7.8

Boarding

8.0

Food

7.2

Comfort

7.9

Crew

8.5

Overall

7.9

Reviews

1 / 10

No wifi on the plane even though there was a signal.

Avianca
6.9
Okay
958 reviews
Delta
7.9
Good
3,016 reviews

Entertainment

7.8

Boarding

8.0

Food

7.2

Comfort

7.9

Crew

8.5

Overall

7.9

Reviews

1 / 10

No wifi on the plane even though there was a signal.

Volaris
6.5
Okay
532 reviews
Delta
7.9
Good
3,016 reviews

Entertainment

7.8

Boarding

8.0

Food

7.2

Comfort

7.9

Crew

8.5

Overall

7.9

Reviews

1 / 10

No wifi on the plane even though there was a signal.

Related info for your journey

Useful info, stats and facts about Ontario to Mexico City flights.

Can I find flights from Ontario to Mexico City for under $400 on Cheapflights?

Yes, there are multiple flights from Ontario to Mexico City for under $400. The cheapest flight booked recently is on Multiple Airlines for just $301, but on average you can expect to pay $349.

Are there last-minute flights available from Ontario to Mexico City for under $400?

There are currently 20+ open flights from Ontario to Mexico City within the next 7 days for less than $400.

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

Flying on Volaris is currently your cheapest option to Mexico City, with prices starting at $324. Another option worth looking into is Avianca, starting at $359 round trip. These flights start at 24% lower than the current average price 3 months from now.

What are the most popular airlines that fly from Ontario to Mexico City?

What does ONT to MEX mean?

Great question - ONT to MEX just means Ontario Airport to Mexico City Benito Juarez Airport. Now you’ll know what these unique codes when you look for flights!

Alternative routes for Ontario to Mexico City

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

Top 5 airlines flying from Ontario to Mexico City

The chart below displays the airlines Cheapflights users traveling from Ontario to Mexico City choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-time
VivaAerobusCheapest$121Average$383FlexibilityNo cancel feeOn-timeN/A
Search VivaAerobus flights
AeromexicoCheapest$217Average$378FlexibilityNo cancel feeOn-timeN/A
Search Aeromexico flights
VolarisCheapest$297Average$398FlexibilityNo cancel feeOn-time79%
Search Volaris flights
United AirlinesCheapest$387Average$826FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
American AirlinesCheapest$490Average$722FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
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