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$580+ Cheap flights from Marseille (MRS) to Ontario (ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
MRS — ONT
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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Cheap flight deals from Marseille to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Marseille (MRS) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 26, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$682
(United Airlines)

One-way from

$580
(British Airways)

Popular in

August

Cheapest in

February

Average price

$703
Provider with most accurate pricing for Marseille-Ontario flight deals.
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Provider most trusted by Cheapflights users for Marseille-Ontario flights.
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From Marseille to Ontario
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One-way flight from Marseille to Ontario
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Highest demand for flights based on searches. 17% potential increase in price ($166 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Marseille to Ontario

Cheapest flights from Marseille to Ontario
Explore the most affordable flight options available from Marseille to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 26, 2025.

This KLM deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:30 amMRS - ONT
2 stops22h 09mKLM
Mon 12/1512:12 pmONT - MRS
2 stops19h 23mKLM
Deal found 11/25$1,027
This American Airlines deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:15 amMRS - ONT
2 stops26h 40mAmerican Airlines
Mon 12/1510:34 pmONT - MRS
2 stops28h 31mAmerican Airlines
Deal found 11/25$1,121
This lastminute.com deal was found by Cheapflights users on 11/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1210:30 amMRS - ONT
2 stops21h 34mMultiple Airlines
Tue 12/1612:12 pmONT - MRS
2 stops19h 23mMultiple Airlines
Deal found 11/26$1,149
This United Airlines deal was found by Cheapflights users on 11/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:45 amMRS - ONT
3 stops25h 04mUnited Airlines
Mon 12/151:34 pmONT - MRS
2 stops19h 21mUnited Airlines
Deal found 11/25$1,233
This United Airlines deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2312:55 pmMRS - ONT
2 stops56h 43mUnited Airlines
Thu 1/18:11 amONT - MRS
2 stops30h 29mUnited Airlines
Deal found 11/24$1,334
This United Airlines deal was found by Cheapflights users on 11/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/296:45 amMRS - ONT
2 stops24h 46mUnited Airlines
Sun 12/76:00 amONT - MRS
2 stops32h 40mUnited Airlines
Deal found 11/26$1,436
This United Airlines deal was found by Cheapflights users on 11/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/110:30 amMRS - ONT
2 stops43h 12mUnited Airlines
Thu 3/121:50 pmONT - MRS
2 stops19h 55mUnited Airlines
Deal found 11/26$1,460
This United Airlines deal was found by Cheapflights users on 11/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/126:45 amMRS - ONT
3 stops25h 04mUnited Airlines
Tue 12/161:34 pmONT - MRS
2 stops19h 11mUnited Airlines
Deal found 11/26$1,659
This United Airlines deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/296:45 amMRS - ONT
2 stops24h 46mUnited Airlines
Sat 12/66:41 pmONT - MRS
2 stops19h 59mUnited Airlines
Deal found 11/24$1,716
This United Airlines deal was found by Cheapflights users on 11/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/288:25 amMRS - ONT
2 stops18h 18mUnited Airlines
Sat 1/36:39 pmONT - MRS
2 stops38h 06mUnited Airlines
Deal found 11/26$1,873
This United Airlines deal was found by Cheapflights users on 11/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2512:55 pmMRS - ONT
2 stops18h 56mUnited Airlines
Tue 12/21:34 pmONT - MRS
2 stops19h 11mUnited Airlines
Deal found 11/24$1,975

Cheapflights Fare Finder

 
Customize your flight search to find flights from Marseille to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 26, 2025.
Use the filters below to find and compare flights from Marseille to Ontario that are best for you.

Fly from

Marseille

Fly to

Ontario

Route

Depart

Return

Price

MarseilleOntario

MRS - ONT

MRSONT

Marseille

Mon 3/9

10:30 am-10:57 pm

2 stops20h 27m

Ontario

Mon 3/16

6:37 pm-11:40 pm

2 stops21h 03m

$682

MarseilleOntario

MRS - ONT

MRSONT

Marseille

Wed 3/11

10:20 am-10:57 pm

2 stops20h 37m

Ontario

Wed 3/18

1:50 pm-5:45 pm

2 stops19h 55m

$682

MarseilleOntario

MRS - ONT

MRSONT

Marseille

Fri 2/13

10:20 am-10:57 pm

2 stops21h 37m

Ontario

Thu 2/26

1:45 pm-5:35 pm

2 stops18h 50m

$683

MarseilleOntario

MRS - ONT

MRSONT

Marseille

Wed 2/11

10:20 am-9:58 pm

2 stops20h 38m

Ontario

Wed 2/25

8:00 am-5:35 pm

2 stops24h 35m

$683

MarseilleOntario

MRS - ONT

MRSONT

Marseille

Fri 2/13

10:20 am-10:57 pm

2 stops21h 37m

Ontario

Mon 3/2

1:45 pm-5:55 pm

2 stops19h 10m

$683

MarseilleOntario

MRS - ONT

MRSONT

Marseille

Wed 2/11

5:55 pm-1:56 pm

2 stops29h 01m

Ontario

Wed 2/25

6:10 am-10:55 am

2 stops19h 45m

$685

MarseilleOntario

MRS - ONT

MRSONT

Marseille

Mon 2/9

5:55 pm-10:08 am

2 stops25h 13m

Ontario

Wed 2/25

7:10 am-10:55 am

2 stops18h 45m

$685

MarseilleOntario

MRS - ONT

MRSONT

Marseille

Sat 2/14

5:55 pm-6:39 pm

2 stops33h 44m

Ontario

Sun 3/1

6:10 am-10:55 am

2 stops19h 45m

$686

MarseilleOntario

MRS - ONT

MRSONT

Marseille

Mon 2/16

5:55 pm-10:07 am

2 stops25h 12m

Ontario

Sun 3/1

6:10 am-10:55 am

2 stops19h 45m

$686

MarseilleOntario

MRS - ONT

MRSONT

Marseille

Mon 2/16

5:55 pm-4:24 pm

2 stops31h 29m

Ontario

Mon 3/2

6:10 am-10:55 am

2 stops19h 45m

$686

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

Showing 1-10 of 21 results
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  • Most accurate provider: When it comes to deals on Marseille-Ontario flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Marseille-Ontario flight deals on Cheapflights vs. Expedia 90-95% of the time. Price accuracy is based on data collected from Marseille-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Marseille-Ontario flights, Cheapflights users trust Expedia the most. Expedia 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 Marseille-Ontario 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 Marseille to Ontario

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

Cheapflights Insights

Everything you need to know about your flight from Marseille to Ontario

What is the cheapest month to book a flight from Marseille to Ontario?

Currently, February is the cheapest month in which you can book a flight from Marseille to Ontario (average of $497). Flying from Marseille to Ontario in July is currently the most expensive (average of $737). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Marseille to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Marseille to Ontario?

    There are many flights that can get you from Marseille to Ontario in 20h 27m. Fly via United Airlines to get the fastest option. The distance between Marseille and Ontario is about 5980 mi.

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

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

  • How can I find direct flights from Marseille to Ontario?

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

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

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

  • What is the cheapest month to book a flight from Marseille to Ontario?

    Currently, February is the cheapest month in which you can book a flight from Marseille to Ontario (average of $497). Flying from Marseille to Ontario in July is currently the most expensive (average of $737). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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