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Frankfurt

$423+ 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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FRA
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
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 July 3, 2025.

Round-trip from

$695
(United Airlines)

One-way from

$423
(flugladen.de)

Popular in

May

Cheapest in

August

Average price

$1,101
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. 19% potential increase in price ($224 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 3, 2025.

This United Airlines deal was found by Cheapflights users on 7/2. 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 9/37:00 amONT - FRA
2 stops17h 45mUnited Airlines
Wed 11/199:45 amFRA - ONT
3 stops46h 00mUnited Airlines
Deal found 7/2$695
This Air Canada deal was found by Cheapflights users on 6/30. 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 10/151:15 pmONT - FRA
2 stops32h 55mAir Canada
Sat 11/110:40 amFRA - ONT
2 stops34h 57mAir Canada
Deal found 6/30$701
This Booking.com deal was found by Cheapflights users on 7/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/206:10 amONT - FRA
1 stop17h 35mBritish Airways
Wed 9/310:55 amFRA - ONT
1 stop16h 59mBritish Airways
Deal found 7/1$709
This KLM deal was found by Cheapflights users on 7/1. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/47:05 amONT - FRA
1 stop16h 50mKLM
Wed 8/2010:40 amFRA - ONT
1 stop20h 40mKLM
Deal found 7/1$711
This flugladen.de deal was found by Cheapflights users on 7/3. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/222:57 pmONT - FRA
1 stop32h 48mIberia
Fri 9/510:55 amFRA - ONT
1 stop16h 59mIberia
Deal found 7/3$717
This Delta deal was found by Cheapflights users on 6/30. 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 10/1310:59 pmONT - FRA
2 stops24h 41mDelta
Tue 10/289:50 amFRA - ONT
1 stop17h 52mDelta
Deal found 6/30$722

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 July 3, 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

Wed 9/3

7:00 am-9:45 am

2 stops17h 45m

Frankfurt am Main

Wed 11/19

9:45 am-10:45 pm

3 stops46h 00m

$695

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Wed 10/15

1:15 pm-7:10 am

2 stops32h 55m

Frankfurt am Main

Sat 11/1

10:40 am-1:37 pm

2 stops34h 57m

$701

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Wed 8/20

6:10 am-8:45 am

1 stop17h 35m

Frankfurt am Main

Wed 9/3

10:55 am-6:54 pm

1 stop16h 59m

$709

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Mon 8/4

7:05 am-8:55 am

1 stop16h 50m

Frankfurt am Main

Wed 8/20

10:40 am-10:20 pm

1 stop20h 40m

$711

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Fri 8/22

2:57 pm-8:45 am

1 stop32h 48m

Frankfurt am Main

Fri 9/5

10:55 am-6:54 pm

1 stop16h 59m

$717

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Mon 9/1

7:05 am-8:55 am

1 stop16h 50m

Frankfurt am Main

Thu 9/18

10:40 am-7:15 pm

1 stop17h 35m

$718

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Tue 7/8

7:00 am-1:35 pm

1 stop21h 35m

$423

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Mon 10/6

11:59 pm-8:45 am

1 stop23h 46m

$469

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Thu 10/30

6:38 am-7:15 am

1 stop16h 37m

$476

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Tue 7/22

7:05 am-8:55 am

1 stop16h 50m

$494

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 14 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 $1,090). 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 July 3, 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.

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 July 3, 2025.
See what other customers who have flown with Delta, KLM, and United Airlines from Ontario to Frankfurt am Main Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,367 reviews
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.1
Good
9,681 reviews
Delta
8.0
Very good
7,982 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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?

    United Airlines, at $695, was found to be the cheapest airline from Ontario to Frankfurt am Main Airport.Alternate airlines to your destination round-trip include Air Canada and British Airways. These flights start at 24% 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 British Airways. According to our data, you can fly for as low as $469. Users have also found prices from $476 and $494 on Iberia and KLM, 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 $1,090). 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
Koblenz
Wurzburg
Wiesbaden
Speyer
Trier
Baden-Baden
Boppard
Mainz
Darmstadt
Cochem

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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 July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$744Average$937FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$751Average$831FlexibilityNo cancel feeOn-time70%

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