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$444+ Cheap flights from Ontario (ONT) to Frankfurt (FRA)

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 7/30. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FRA
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
1 adult, Economy
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Cheap flight deals from Ontario to Frankfurt

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Frankfurt (FRA). 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 June 18, 2025.

Round-trip from

$645
(Delta)

One-way from

$444
(KLM)

Popular in

May

Cheapest in

August

Average price

$1,030
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. 16% potential increase in price ($180 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Ontario to Frankfurt

Cheapest flights from Ontario to Frankfurt
Explore the most affordable flight options available from Ontario to Frankfurt. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2025.

This Delta deal was found by Cheapflights users on 6/18. 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 8/410:05 pmONT - FRA
1 stop25h 50mDelta
Wed 8/2010:40 amFRA - ONT
1 stop17h 31mDelta
Deal found 6/18$645
This KLM deal was found by Cheapflights users on 6/17. 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.
Wed 8/67:05 amONT - FRA
1 stop16h 50mKLM
Wed 8/2010:40 amFRA - ONT
1 stop20h 40mKLM
Deal found 6/17$649
This British Airways deal was found by Cheapflights users on 6/18. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/411:59 pmONT - FRA
1 stop23h 46mBritish Airways
Wed 8/2010:55 amFRA - ONT
1 stop20h 53mBritish Airways
Deal found 6/18$654
This United Airlines deal was found by Cheapflights users on 6/16. 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 8/57:00 amONT - FRA
1 stop14h 30mUnited Airlines
Tue 8/191:35 pmFRA - ONT
1 stop15h 58mUnited Airlines
Deal found 6/16$656
This Booking.com deal was found by Cheapflights users on 6/17. 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 11/275:40 amONT - FRA
2 stops16h 45mAir Canada
Tue 12/91:40 pmFRA - ONT
2 stops40h 03mAir Canada
Deal found 6/17$670
This Billigflug deal was found by Cheapflights users on 6/16. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:00 amONT - FRA
1 stop16h 40mAir France
Thu 11/279:50 amFRA - ONT
1 stop18h 52mAir France
Deal found 6/16$677
This Iberia deal was found by Cheapflights users on 6/17. 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.
Sat 7/262:37 pmONT - FRA
1 stop33h 08mIberia
Thu 8/1410:55 amFRA - ONT
1 stop22h 13mIberia
Deal found 6/17$691
This Iberia deal was found by Cheapflights users on 6/16. 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.
Thu 10/168:44 amONT - FRA
1 stop15h 01mMultiple Airlines
Mon 10/2010:35 amFRA - ONT
2 stops22h 27mMultiple Airlines
Deal found 6/16$771
This American Airlines deal was found by Cheapflights users on 6/16. 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.
Mon 8/48:15 amONT - FRA
1 stop15h 30mAmerican Airlines
Wed 8/2010:55 amFRA - ONT
1 stop16h 29mAmerican Airlines
Deal found 6/16$779
This oojo deal was found by Cheapflights users on 6/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/276:00 amONT - FRA
1 stop21h 20mCondor
Sun 10/121:45 pmFRA - ONT
1 stop19h 14mCondor
Deal found 6/16$978

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to Frankfurt 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 June 18, 2025.
Use the filters below to find and compare flights from Ontario to Frankfurt am Main Airport that are best for you.

Fly from

Ontario

Fly to

Frankfurt

Route

Depart

Return

Price

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Mon 8/4

10:05 pm-8:55 am

1 stop25h 50m

Frankfurt am Main

Wed 8/20

10:40 am-7:11 pm

1 stop17h 31m

$645

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Wed 8/6

7:05 am-8:55 am

1 stop16h 50m

Frankfurt am Main

Wed 8/20

10:40 am-10:20 pm

1 stop20h 40m

$649

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Mon 8/4

11:59 pm-8:45 am

1 stop23h 46m

Frankfurt am Main

Wed 8/20

10:55 am-10:48 pm

1 stop20h 53m

$654

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Tue 8/5

7:00 am-6:30 am

1 stop14h 30m

Frankfurt am Main

Tue 8/19

1:35 pm-8:33 pm

1 stop15h 58m

$656

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Thu 11/27

5:40 am-7:25 am

2 stops16h 45m

Frankfurt am Main

Tue 12/9

1:40 pm-8:43 pm

2 stops40h 03m

$670

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Thu 11/13

7:00 am-8:40 am

1 stop16h 40m

Frankfurt am Main

Thu 11/27

9:50 am-7:42 pm

1 stop18h 52m

$677

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Sat 7/26

2:37 pm-8:45 am

1 stop33h 08m

Frankfurt am Main

Thu 8/14

10:55 am-12:08 am

1 stop22h 13m

$691

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Thu 10/16

8:44 am-8:45 am

1 stop15h 01m

Frankfurt am Main

Mon 10/20

10:35 am-12:02 am

2 stops22h 27m

$771

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Mon 8/4

8:15 am-8:45 am

1 stop15h 30m

Frankfurt am Main

Wed 8/20

10:55 am-6:24 pm

1 stop16h 29m

$779

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Sat 9/27

6:00 am-12:20 pm

1 stop21h 20m

Frankfurt am Main

Sun 10/12

1:45 pm-11:59 pm

1 stop19h 14m

$978

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/17

Showing 1-10 of 20 results
1
2

Best time to book a flight from Ontario to Frankfurt

Have a flexible travel schedule? Discover the best time to fly to Frankfurt 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 Airport

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

Currently, January is the cheapest month in which you can book a flight from Ontario to Frankfurt am Main Airport (average of $729). Flying from Ontario to Frankfurt am Main Airport in June is currently the most expensive (average of $1,087). 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. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 18, 2025.

When flying from Ontario to Frankfurt am Main Airport, 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.

Rainfall in Frankfurt by month

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

In terms of precipitation, rainfall in Frankfurt am Main Airport ranges from 1.6 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Frankfurt am Main Airport when rainfall is around 1.6 in.

Temperature in Frankfurt by month

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

If weather is an important factor for your trip to Frankfurt am Main Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Frankfurt

Get insights into the airlines that provide service to Frankfurt. 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. Reviews last updated June 18, 2025.
See what other customers who have flown with China Airlines, Delta and KLM from Ontario to Frankfurt am Main have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.3
Very good
742 reviews

Comfort

8.0

Boarding

8.3

Food

7.8

Crew

8.5

Overall

8.3

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
China Airlines
8.3
Very good
742 reviews
China Airlines
8.3
Very good
742 reviews

Comfort

8.0

Boarding

8.3

Food

7.8

Crew

8.5

Overall

8.3

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
Delta
8.0
Very good
7,964 reviews
China Airlines
8.3
Very good
742 reviews

Comfort

8.0

Boarding

8.3

Food

7.8

Crew

8.5

Overall

8.3

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
KLM
7.8
Good
1,364 reviews
China Airlines
8.3
Very good
742 reviews

Comfort

8.0

Boarding

8.3

Food

7.8

Crew

8.5

Overall

8.3

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
Air France
7.5
Good
1,467 reviews
China Airlines
8.3
Very good
742 reviews

Comfort

8.0

Boarding

8.3

Food

7.8

Crew

8.5

Overall

8.3

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver
United Airlines
7.4
Good
8,810 reviews
China Airlines
8.3
Very good
742 reviews

Comfort

8.0

Boarding

8.3

Food

7.8

Crew

8.5

Overall

8.3

Entertainment

8.0

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2025

YVR - TPE

I like the system, but the problem is the food , thre is no option, as a chef i don't recommend the food is worst we keep our hungry until taipe from vancouver

Related info for your journey

Find useful and relevant information for your journey from Ontario to Frankfurt. 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.

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

    Delta, at $645, was found to be the cheapest airline from Ontario to Frankfurt am Main Airport.Alternate airlines to your destination round-trip include KLM and British Airways. These flights start at 29% lower than the current average price 3 months from now.

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

    For one-way options, check prices for KLM. According to our data, you can fly for as low as $444. Users have also found prices from $456 and $457 on United Airlines and Iberia, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Frankfurt 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 Airport?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Frankfurt am Main Airport (average of $729). Flying from Ontario to Frankfurt am Main Airport in June is currently the most expensive (average of $1,087). 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.

See more FAQs

Traveling to a place near Ontario?

Book flights to Ontario if you plan to visit one of these locations
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Top 2 airlines flying from Ontario to Frankfurt

Discover the top 2 airlines that operate flights from Ontario to Frankfurt. 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 June 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$745Average$953FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$751Average$831FlexibilityNo cancel feeOn-time70%

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