In terms of precipitation, rainfall in Carlsbad, New Mexico ranges from 0.4 - 2.3 inches per month. September is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Carlsbad, New Mexico when rainfall is around 0.4 in.

If weather is an important factor for your trip to Carlsbad, New Mexico, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 42.8 F).

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

When flying from Ontario to Carlsbad, New Mexico, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Ontario-Carlsbad, New Mexico flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Carlsbad, New Mexico flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Carlsbad, New Mexico flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Ontario-Carlsbad, New Mexico flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Carlsbad, New Mexico flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

How can I find direct flights from Ontario to Carlsbad?

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

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

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

$679+ Cheap Flights from Ontario to Carlsbad, NM

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Cheap flight deals from Ontario to Carlsbad

Cheapest

Best

Cheapest flights from Ontario to Carlsbad
Explore the most affordable flight options available from Ontario to Carlsbad. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.

Wed 11/257:12 am -

2 stops10h 28m

Sun 11/292:00 pm -

2 stops10h 57m

Deal found 9/9

$1,668

Find flight deals from Ontario to Carlsbad

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$679 (Booking.com)

Provider with most accurate pricing for Ontario-Carlsbad Cavern City flight deals.

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Provider most trusted by Cheapflights users for Ontario-Carlsbad Cavern City flights.

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From Ontario to Carlsbad Cavern City

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Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioCarlsbad

ONT Ontario - CNM Carlsbad Cavern City

ONTCNM

Ontario

Thu 1/21

11:36 am-6:40 pm

2 stops30h 04m

Carlsbad Cavern City

Sun 1/24

2:00 pm-8:02 pm

2 stops31h 02m

$679

Quickest round-trip

OntarioCarlsbad

ONT Ontario - CNM Carlsbad Cavern City

ONTCNM

Ontario

Wed 11/25

7:12 am-6:40 pm

2 stops10h 28m

Carlsbad Cavern City

Sun 11/29

2:00 pm-11:57 pm

2 stops10h 57m

$1,668

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/8

Sorted by cheapest first

Compare providers for flights from Ontario to Carlsbad

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Carlsbad in September.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
Expedia	Price Accuracy1 star	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Ontario-Carlsbad, New Mexico flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Carlsbad, New Mexico flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Carlsbad, New Mexico flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Ontario-Carlsbad, New Mexico flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Carlsbad, New Mexico flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Carlsbad

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

ONT-CNM

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.

Related info for your journey

Can I find deals for flights from Ontario to Carlsbad that include hotel bookings?
Yes. In addition to deals on Ontario to Carlsbad flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Ontario to Carlsbad?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Carlsbad.
Can I find deals for business class flights from Ontario to Carlsbad?
Yes. Cheapflights offers flight deals from Ontario to Carlsbad by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Browse thousands of different options on Cheapflights for your next trip

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$679+ Cheap flights from Ontario to Carlsbad, NM (ONT - CNM)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/21. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Carlsbad with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Ontario to Carlsbad

Cheapest flights from Ontario to CarlsbadExplore the most affordable flight options available from Ontario to Carlsbad. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.

Explore the most affordable flight options available from Ontario to Carlsbad. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.

Best flights from Ontario to CarlsbadDiscover carefully curated flight deals from Ontario to Carlsbad that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.

Discover carefully curated flight deals from Ontario to Carlsbad that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.

Find flight deals from Ontario to Carlsbad

Most accurate provider

Most trusted provider

Round-trip from

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Use the filters below to find and compare flights from Ontario to Carlsbad that are best for you.

Compare providers for flights from Ontario to Carlsbad

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Carlsbad in September.

Best time to book a flight from Ontario to Carlsbad

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

Related info for your journey

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

How can I find direct flights from Ontario to Carlsbad?

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

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 Carlsbad

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

Other flights to Carlsbad

Explore flights to Carlsbad departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 10, 2026.

Complete your trip

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

Search flights from Ontario to Carlsbad by cabin class

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

Ontario and Carlsbad flights

Browse other Ontario and Carlsbad flight options. Last updated on September 10, 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 September 10, 2026.

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Check out other popular destinations found by fellow travelers in 2026

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Cheapest flights from Ontario to Carlsbad
Explore the most affordable flight options available from Ontario to Carlsbad. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.

Best flights from Ontario to Carlsbad
Discover carefully curated flight deals from Ontario to Carlsbad that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.