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Frankfurt am Main

$470+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FRA
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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Cheap 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 December 4, 2025.

This Air Canada deal was found by Cheapflights users on 12/3. 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.
Mon 12/295:05 amONT - FRA
2 stops17h 20mAir Canada
Fri 2/65:10 pmFRA - ONT
2 stops28h 37mAir Canada
Deal found 12/3$703
This Air Canada deal was found by Cheapflights users on 12/3. 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.
Wed 12/315:05 amONT - FRA
2 stops21h 05mAir Canada
Fri 2/65:10 pmFRA - ONT
2 stops28h 37mAir Canada
Deal found 12/3$706
This Delta deal was found by Cheapflights users on 12/3. 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.
Mon 12/297:05 amONT - FRA
1 stop16h 35mDelta
Sat 1/316:55 amFRA - ONT
2 stops23h 53mDelta
Deal found 12/3$715
This United Airlines deal was found by Cheapflights users on 12/2. 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 12/315:05 amONT - FRA
1 stop19h 15mUnited Airlines
Sat 1/175:25 pmFRA - ONT
1 stop14h 28mUnited Airlines
Deal found 12/2$716
This Air Canada deal was found by Cheapflights users on 12/4. 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.
Mon 12/151:34 pmONT - FRA
2 stops56h 06mAir Canada
Wed 1/79:45 amFRA - ONT
2 stops36h 02mAir Canada
Deal found 12/4$718
This United Airlines deal was found by Cheapflights users on 12/1. 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 12/255:05 amONT - FRA
1 stop19h 15mUnited Airlines
Fri 1/165:25 pmFRA - ONT
1 stop33h 26mUnited Airlines
Deal found 12/1$721
This Air Canada deal was found by Cheapflights users on 12/3. 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 12/305:05 amONT - FRA
2 stops21h 05mAir Canada
Wed 2/45:10 pmFRA - ONT
2 stops28h 37mAir Canada
Deal found 12/3$742
This United Airlines deal was found by Cheapflights users on 12/1. 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 12/276:00 amONT - FRA
1 stop18h 35mUnited Airlines
Thu 1/151:50 pmFRA - ONT
2 stops30h 28mUnited Airlines
Deal found 12/1$752
This United Airlines deal was found by Cheapflights users on 12/2. 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 12/96:00 amONT - FRA
1 stop23h 55mUnited Airlines
Tue 12/1610:10 amFRA - ONT
1 stop21h 39mUnited Airlines
Deal found 12/2$753
This United Airlines deal was found by Cheapflights users on 12/2. 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 12/316:00 amONT - FRA
1 stop23h 55mUnited Airlines
Sun 1/1810:10 amFRA - ONT
1 stop16h 33mUnited Airlines
Deal found 12/2$754
This Finnair deal was found by Cheapflights users on 12/2. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:03 amONT - FRA
1 stop15h 12mMultiple Airlines
Wed 12/2410:15 amFRA - ONT
1 stop17h 01mMultiple Airlines
Deal found 12/2$780

Find 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 December 4, 2025.

Round-trip from

$680
(Billigflug)

One-way from

$470
(American Airlines)

Popular in

May

Cheapest in

October

Average price

$1,301
From Ontario to Frankfurt am Main
Search Deals
One-way flight from Ontario to Frankfurt am Main
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($276 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 December 4, 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

Mon 1/26

10:30 pm-8:40 am

1 stop25h 10m

Frankfurt am Main

Wed 2/11

9:50 am-9:05 pm

1 stop20h 15m

$708

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Mon 12/29

7:05 am-8:40 am

1 stop16h 35m

Frankfurt am Main

Fri 2/6

6:55 am-4:15 pm

2 stops18h 20m

$715

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Wed 1/21

5:05 am-9:20 am

1 stop19h 15m

Frankfurt am Main

Thu 5/21

1:35 pm-11:06 pm

1 stop18h 31m

$716

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Sun 4/26

5:10 am-9:20 am

1 stop19h 10m

Frankfurt am Main

Fri 5/8

5:30 pm-11:06 pm

1 stop14h 36m

$716

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Mon 1/19

5:05 am-9:20 am

1 stop19h 15m

Frankfurt am Main

Mon 5/18

5:30 pm-11:06 pm

1 stop14h 36m

$716

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Sat 12/27

6:00 am-9:35 am

1 stop18h 35m

Frankfurt am Main

Thu 1/15

1:20 pm-10:53 pm

1 stop18h 33m

$716

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Sat 1/17

1:53 pm-2:55 pm

1 stop16h 02m

Frankfurt am Main

Mon 5/18

1:55 pm-9:21 pm

1 stop16h 26m

$716

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Mon 1/19

5:05 am-9:20 am

1 stop19h 15m

Frankfurt am Main

Thu 5/21

5:30 pm-11:06 pm

1 stop14h 36m

$716

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Thu 1/22

1:53 pm-2:55 pm

1 stop16h 02m

Frankfurt am Main

Thu 2/5

1:50 pm-9:58 pm

1 stop17h 08m

$716

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Mon 1/19

5:05 am-9:20 am

1 stop19h 15m

Frankfurt am Main

Wed 5/20

5:30 pm-11:06 pm

1 stop14h 36m

$716

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 22 results
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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, February is the cheapest month in which you can book a flight from Ontario to Frankfurt am Main (average of $431). Flying from Ontario to Frankfurt am Main in June is currently the most expensive (average of $775). 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 December 4, 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 evening, which can drop the price by up to 34% 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 December 4, 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
9,063 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

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
9,063 reviews
United Airlines
7.4
Good
9,063 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

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
7,559 reviews
United Airlines
7.4
Good
9,063 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

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?

    Delta and United Airlines can get you from Ontario to Frankfurt am Main in just under 19h 15m. Your travel time can differ by up to 5h 55m. 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 $700 on this airline. An additional option worth looking into is British Airways, starting at $719. These flights start at 28% lower than the current average price 3 months from now.

  • 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, February is the cheapest month in which you can book a flight from Ontario to Frankfurt am Main (average of $431). Flying from Ontario to Frankfurt am Main in June is currently the most expensive (average of $775). 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 December 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$700Average$809FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$719Average$830FlexibilityNo cancel feeOn-time70%

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