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Frankfurt am Main

$413+ Cheap flights from Ontario (ONT) to Frankfurt am Main

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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FRA
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Ontario to Frankfurt am Main

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Frankfurt am Main (FK0). 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 September 16, 2025.

Round-trip from

$695
(United Airlines)

One-way from

$413
(Kiwi.com)

Popular in

May

Cheapest in

September

Average price

$746
From Ontario to Frankfurt am Main
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One-way flight from Ontario to Frankfurt am Main
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Highest demand for flights based on searches. 24% potential increase in price ($312 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Ontario to Frankfurt am Main

Cheapest flights from Ontario to Frankfurt am Main
Explore the most affordable flight options available from Ontario to Frankfurt am Main. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This United Airlines deal was found by Cheapflights users on 9/14. 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 11/66:00 amONT - FRA
2 stops16h 25mUnited Airlines
Tue 11/119:45 amFRA - ONT
2 stops45h 46mUnited Airlines
Deal found 9/14$695
This United Airlines deal was found by Cheapflights users on 9/13. 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 10/281:40 pmONT - FRA
2 stops18h 25mUnited Airlines
Tue 11/49:45 amFRA - ONT
2 stops45h 46mUnited Airlines
Deal found 9/13$699
This Expedia deal was found by Cheapflights users on 9/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/27:00 amONT - FRA
1 stop15h 15mBritish Airways
Sun 11/1610:50 amFRA - ONT
1 stop19h 21mBritish Airways
Deal found 9/13$710
This American Airlines deal was found by Cheapflights users on 9/14. 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 11/610:34 pmONT - FRA
1 stop25h 16mAmerican Airlines
Tue 11/1110:15 amFRA - ONT
1 stop36h 47mAmerican Airlines
Deal found 9/14$711
This United Airlines deal was found by Cheapflights users on 9/15. 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.
Wed 12/31:50 pmONT - FRA
1 stop16h 05mUnited Airlines
Thu 12/1111:10 amFRA - ONT
1 stop18h 32mUnited Airlines
Deal found 9/15$718
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/316:05 amONT - FRA
2 stops23h 00mUnited Airlines
Sun 11/911:30 amFRA - ONT
2 stops20h 21mUnited Airlines
Deal found 9/14$722
This United Airlines deal was found by Cheapflights users on 9/14. 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 11/16:38 pmONT - FRA
1 stop30h 57mUnited Airlines
Mon 11/1711:30 amFRA - ONT
2 stops20h 21mUnited Airlines
Deal found 9/14$723
This Delta deal was found by Cheapflights users on 9/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/310:25 pmONT - FRA
1 stop25h 15mDelta
Tue 12/239:50 amFRA - ONT
1 stop18h 47mDelta
Deal found 9/13$724
This United Airlines deal was found by Cheapflights users on 9/13. 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 11/309:35 pmONT - FRA
1 stop28h 55mUnited Airlines
Sun 12/1410:10 amFRA - ONT
1 stop35h 07mUnited Airlines
Deal found 9/13$729
This Air Canada deal was found by Cheapflights users on 9/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/285:05 amONT - FRA
3 stops42h 20mMultiple Airlines
Tue 11/45:10 pmFRA - ONT
2 stops28h 27mMultiple Airlines
Deal found 9/13$731
This Expedia deal was found by Cheapflights users on 9/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/148:15 amONT - FRA
1 stop15h 30mBritish Airways
Tue 10/2810:50 amFRA - ONT
1 stop18h 46mBritish Airways
Deal found 9/13$740
This Expedia deal was found by Cheapflights users on 9/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:10 amONT - FRA
1 stop17h 35mBritish Airways
Thu 10/3010:50 amFRA - ONT
1 stop18h 43mBritish Airways
Deal found 9/15$741

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Frankfurt am Main 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 September 16, 2025.
Use the filters below to find and compare flights from Ontario to Frankfurt am Main that are best for you.

Fly from

Ontario

Fly to

Frankfurt am Main

Route

Depart

Return

Price

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Tue 10/28

1:40 pm-4:05 pm

2 stops18h 25m

Frankfurt am Main

Tue 11/4

9:45 am-10:31 pm

2 stops45h 46m

$699

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Mon 10/27

8:15 am-7:15 am

1 stop15h 00m

Frankfurt am Main

Mon 11/3

10:50 am-7:41 pm

1 stop17h 51m

$718

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Thu 2/12

6:00 am-7:15 am

1 stop16h 15m

Frankfurt am Main

Thu 2/26

10:15 am-9:57 pm

1 stop20h 42m

$718

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Mon 3/9

6:46 am-7:15 am

1 stop16h 29m

Frankfurt am Main

Mon 3/16

10:50 am-8:15 pm

1 stop17h 25m

$718

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Mon 3/9

5:40 am-7:25 am

2 stops17h 45m

Frankfurt am Main

Tue 3/17

11:10 am-8:17 pm

1 stop17h 07m

$718

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Sun 2/22

6:47 am-7:15 am

1 stop15h 28m

Frankfurt am Main

Thu 3/5

10:15 am-5:51 pm

1 stop16h 36m

$718

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Wed 1/14

6:00 am-9:35 am

1 stop18h 35m

Frankfurt am Main

Wed 1/28

12:50 pm-10:26 pm

1 stop18h 36m

$718

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Tue 1/13

5:05 am-9:20 am

1 stop19h 15m

Frankfurt am Main

Tue 1/27

12:50 pm-10:26 pm

1 stop18h 36m

$718

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Fri 2/13

6:47 am-7:15 am

1 stop15h 28m

Frankfurt am Main

Fri 2/27

10:15 am-5:51 pm

1 stop16h 36m

$718

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Fri 10/31

6:00 am-9:35 am

1 stop19h 35m

Frankfurt am Main

Sun 11/9

10:50 am-10:31 pm

1 stop20h 41m

$718

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 23 results
1
2
3

Best time to book a flight from Ontario to Frankfurt am Main

Have a flexible travel schedule? Discover the best time to fly to Frankfurt am Main from Ontario 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 Ontario to Frankfurt am Main

What is the cheapest month to book a flight from Ontario to Frankfurt am Main?

Currently, January is the cheapest month in which you can book a flight from Ontario to Frankfurt am Main (average of $729). Flying from Ontario to Frankfurt am Main in June is currently the most expensive (average of $1,091). 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.

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

Find hourly flight availability from Ontario to Frankfurt am Main. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

When flying from Ontario to Frankfurt am Main, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 24% versus a flight in the afternoon.

Reviews of airlines servicing Frankfurt am Main

Get insights into the airlines that provide service to Frankfurt am Main. 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 Frankfurt am Main. Reviews last updated September 16, 2025.
Get a feel of what it's like to fly with United Airlines and British Airways from Ontario to Frankfurt am Main 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
8,929 reviews

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,929 reviews
United Airlines
7.4
Good
8,929 reviews

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
British Airways
6.7
Okay
7,361 reviews
United Airlines
7.4
Good
8,929 reviews

Overall

7.4

Comfort

7.3

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

Related info for your journey

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

  • What airport do you fly from for flights from Ontario to Frankfurt am Main?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly out of when you book flights from Ontario to Frankfurt am Main. 2 airlines have flights from Ontario to Frankfurt am Main on a regular basis. Booking flights from Ontario to Frankfurt am Main should not be difficult; the airport handles an average of 0 outbound flights to Frankfurt am Main per day.

  • How long is the flight from Ontario to Frankfurt am Main?

    United Airlines and Iberia can get you from Ontario to Frankfurt am Main in just under 16h 15m. Your travel time can differ by up to 2h 10m. There are 5757 mi between Ontario and Frankfurt am Main. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Ontario to Frankfurt am Main round-trip?

    Our cheapest airline available from Ontario to Frankfurt am Main is United Airlines. Our recent data shows that you can find tickets from as low as $730 on this airline. An additional option worth looking into is British Airways, starting at $752. These flights start at 22% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Ontario to Frankfurt am Main one-way?

    One-way options have recently been found by users for as low as $464 on British Airways. Other airlines that offer cheap prices include American Airlines from $471 and Iberia from $474 one-way.

  • Can I find deals for flights from Ontario to Frankfurt am Main that include hotel bookings?

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

  • How can I find direct flights from Ontario to Frankfurt am Main?

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

  • Can I find deals for business class flights from Ontario to Frankfurt am Main?

    Yes. Cheapflights offers flight deals from Ontario to Frankfurt am Main 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 Ontario to Frankfurt am Main?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Frankfurt am Main (average of $729). Flying from Ontario to Frankfurt am Main in June is currently the most expensive (average of $1,091). 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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Top 2 airlines flying from Ontario to Frankfurt am Main

Discover the top 2 airlines that operate flights from Ontario to Frankfurt am Main. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$730Average$912FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$752Average$830FlexibilityNo cancel feeOn-time70%

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