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$697+ Cheap flights from Marseille (MRS) to Ontario (ONT)

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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
MRS — ONT
May 20 — May 271
Tue 5/20
Tue 5/27
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 May 15, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$992
(Mytrip)

Popular in

July

Cheapest in

January

Average price

$776
Provider with most accurate pricing for Marseille-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Marseille-Los Angeles flights.
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From Marseille to Ontario
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Highest demand for flights based on searches. 18% potential increase in price ($198 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 May 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 May 15, 2025.

This Booking.com deal was found by Cheapflights users on 5/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/611:45 amMRS - ONT
2 stops21h 00mBritish Airways
Thu 11/133:05 pmONT - MRS
2 stops17h 15mBritish Airways
Deal found 5/15$697
This American Airlines deal was found by Cheapflights users on 5/15. 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 9/256:15 amMRS - ONT
2 stops26h 21mAmerican Airlines
Sat 10/43:00 pmONT - MRS
2 stops17h 20mAmerican Airlines
Deal found 5/15$748
This Iberia deal was found by Cheapflights users on 5/15. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/512:40 pmMRS - ONT
2 stops19h 56mIberia
Fri 9/123:00 pmONT - MRS
2 stops17h 30mIberia
Deal found 5/15$766
This Mytrip deal was found by Cheapflights users on 5/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/210:20 pmMRS - ONT
3 stops33h 15mMultiple Airlines
Sun 6/86:25 amONT - MRS
3 stops31h 00mMultiple Airlines
Deal found 5/15$992
This United Airlines deal was found by Cheapflights users on 5/15. 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 6/26:00 amMRS - ONT
2 stops20h 25mUnited Airlines
Sun 6/81:33 pmONT - MRS
2 stops18h 22mUnited Airlines
Deal found 5/15$1,033

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 May 15, 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

Thu 11/6

11:45 am-11:45 pm

2 stops21h 00m

Ontario

Thu 11/13

3:05 pm-5:20 pm

2 stops17h 15m

$697

MarseilleOntario

MRS - ONT

MRSONT

Marseille

Thu 9/25

6:15 am-8:01 pm

2 stops22h 46m

Ontario

Fri 10/3

10:54 am-6:15 pm

2 stops22h 21m

$748

MarseilleOntario

MRS - ONT

MRSONT

Marseille

Fri 9/5

12:40 pm-11:36 pm

2 stops19h 56m

Ontario

Fri 9/12

3:00 pm-5:30 pm

2 stops17h 30m

$766

MarseilleOntario

MRS - ONT

MRSONT

Marseille

Mon 6/2

10:20 pm-10:35 pm

3 stops33h 15m

Ontario

Sun 6/8

6:25 am-10:25 pm

3 stops31h 00m

$992

MarseilleOntario

MRS - ONT

MRSONT

Marseille

Mon 6/2

6:00 am-5:25 pm

2 stops20h 25m

Ontario

Sun 6/8

1:33 pm-4:55 pm

2 stops18h 22m

$1,033

MarseilleOntario

MRS - ONT

MRSONT

Marseille

Thu 7/3

6:00 pm-7:01 pm

2 stops34h 01m

$1,098

MarseilleOntario

MRS - ONT

MRSONT

Marseille

Thu 7/3

6:40 am-10:06 pm

3 stops24h 26m

$1,771

MarseilleOntario

MRS - ONT

MRSONT

Marseille

Tue 5/27

10:50 am-9:10 pm

2 stops19h 20m

$6,013

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/15

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, August is the cheapest month in which you can book a flight from Marseille to Ontario (average of $246). Flying from Marseille to Ontario in March is currently the most expensive (average of $328). 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.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated May 15, 2025.
Get a feel of what it's like to fly with United Airlines, American Airlines and Iberia from Marseille to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,731 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
United Airlines
7.4
Good
8,731 reviews
United Airlines
7.4
Good
8,731 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,731 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
Iberia
7.0
Good
2,729 reviews
United Airlines
7.4
Good
8,731 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.
British Airways
6.6
Okay
6,890 reviews
United Airlines
7.4
Good
8,731 reviews

Entertainment

7.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Thomas,Apr 2025

TPE - SFO

The boarding experience was okay. The dietary food choices were limited, the midway snacks were hard and dry. The seat was uncomfortable - stiff seat cushion, seat back kept springing back to the upright position, narrow seat width. Love the app and the ability to track my luggage. Flight crew was efficient.

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.

  • What are the cheapest airlines to fly from Marseille to Ontario one-way?

    The cheapest airlines for a one-way flight from Marseille to Ontario are Iberia ($1,087), American Airlines ($1,092), and British Airways ($1,256).

  • 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, August is the cheapest month in which you can book a flight from Marseille to Ontario (average of $246). Flying from Marseille to Ontario in March is currently the most expensive (average of $328). 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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