ONT - PAR

$354 Find Cheap Flights from Ontario to Paris

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Paris departing on 5/9. 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 Paris

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Paris, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Paris, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$552
Typical prices: $991-$1,057
British Airways
Thu 2/26Tue 3/3
ONT - CDG • 2 stops
Cheapest one-way
$354
Multiple Airlines
Sat 5/9
ONT - CDG • 2 stops
Top airlines
United Airlines
Cheapest • from $554 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Paris (ONT-PAR)

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

Thu, Feb 26 - Tue, Mar 3
British Airways Logo
5:02 pm - 7:35 pm
ONT
-
CDG
17h 33m
2 stops
British Airways Logo
7:10 am - 10:49 pm
CDG
-
ONT
24h 39m
2 stops
$552British Airways
Thu, Feb 26 - Thu, Mar 5
United Airlines Logo
6:10 am - 9:40 am
ONT
-
CDG
18h 30m
1 stop
United Airlines Logo
2:00 pm - 10:18 pm
CDG
-
ONT
41h 18m
2 stops
$554United Airlines
Fri, Feb 27 - Sun, Mar 8
United Airlines Logo
6:10 am - 9:40 am
ONT
-
CDG
18h 30m
1 stop
United Airlines Logo
8:45 am - 9:57 pm
CDG
-
ONT
22h 12m
2 stops
$557United Airlines
Sun, Feb 15 - Wed, Feb 25
United Airlines Logo
6:09 am - 9:40 am
ONT
-
CDG
18h 31m
1 stop
United Airlines Logo
2:25 pm - 10:57 pm
CDG
-
ONT
17h 32m
2 stops
$558United Airlines
Mon, Feb 9 - Mon, Feb 16
American Airlines Logo
3:09 pm - 9:05 am
ONT
-
CDG
32h 56m
1 stop
American Airlines Logo
11:30 am - 10:07 pm
CDG
-
ONT
19h 37m
2 stops
$561American Airlines
Mon, Feb 9 - Wed, Feb 25
Delta Logo
12:41 pm - 1:15 pm
ONT
-
CDG
15h 34m
1 stop
Delta Logo
10:20 am - 4:02 pm
CDG
-
ONT
14h 42m
1 stop
$563Delta
Mon, Feb 9 - Wed, Feb 25
Multiple Airlines Logo
12:41 pm - 10:50 am
ONT
-
CDG
13h 09m
1 stop
Multiple Airlines Logo
10:20 am - 4:02 pm
CDG
-
ONT
14h 42m
1 stop
$564Multiple Airlines
Tue, Feb 24 - Tue, Mar 3
Iberia Logo
6:00 am - 9:25 am
ONT
-
ORY
18h 25m
2 stops
Iberia Logo
8:55 pm - 10:49 pm
ORY
-
ONT
34h 54m
2 stops
$590Iberia
Fri, May 1 - Fri, May 15
Iberia Logo
10:59 am - 4:30 pm
ONT
-
ORY
20h 31m
2 stops
Iberia Logo
7:25 am - 11:46 pm
ORY
-
ONT
25h 21m
2 stops
$1,029Iberia
Sun, Mar 1 - Mon, Mar 9
American Airlines Logo
6:00 am - 9:25 am
ONT
-
ORY
18h 25m
2 stops
American Airlines Logo
8:55 pm - 10:06 am
ORY
-
ONT
21h 11m
2 stops
$1,429American Airlines
Booking Insights

KAYAK's insights & trends for Ontario to Paris flights

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

Which airlines provide the cheapest flights from Ontario to Paris?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Ontario to Paris were found on United Airlines ($554) and Iberia ($590).

Find deals

Good to know

Cheapest flight$354
Flight from Ontario to Paris Charles de Gaulle Airport

When to book flights from Ontario to Paris

Are your dates flexible? Find out the best times to travel from Ontario to Paris based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Paris

  • What is the cheapest flight from Ontario to Paris?

    In the last 3 days, the lowest price for a flight from Ontario to Paris was $354 for a one-way ticket and $552 for a round-trip.

  • Do I need a passport to fly between Ontario and Paris?

    A passport is required to fly from Ontario to Paris.

  • Which airports will I be using when flying from Ontario to Paris?

    On your way to Paris, you’ll fly out from Ontario. You’ll be landing in one of Paris’s 2 airports: Paris Charles de Gaulle or Paris Orly.

  • Which aircraft models fly most regularly from Ontario to Paris?

    We unfortunately don’t have that data for this specific route.

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

    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 from Ontario to Paris.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Paris from 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 from Ontario to Paris?

    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 Paris with an airline and back to Ontario with another airline.

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

    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 Paris from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Ontario to Paris

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Paris. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Paris? 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.
7.9
DeltaOverall score based on 8039 reviews
8.5Crew
7.9Comfort
8.1Boarding
7.8Entertainment
7.2Food
Airline reviews

My bike did not arrive in Chicago alongside 2 bags. Hoping we get them tomorrow.

8.0 ExcellentJacob, Jan 2026
NBO - CDG
Read more Delta reviews

My bike did not arrive in Chicago alongside 2 bags. Hoping we get them tomorrow.

The flight was delayed for about 2 hrs. Other than it, it was good.

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Knowing what gate to go to was such a issue I couldn’t tell on the app, they tell you what zone you are in but won’t give you the gate number, i almost missed my flight in Atlanta Georgia because of that, as soon as we landed my next flight was already boarding because our flight to Nashville arrived late, I don’t know how that works, but as soon as we got out I was told my next flight is boarding I had to rush lost few of my items, and when I finally got to the gate after struggling, I received a message about my gate after I already boarded, and no my tickets didn’t have the gate numbers either.

Everything you need to know for your flight from Ontario to Paris

Information on your arrival and departure airports

Ontario (ONT)