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Frankfurt

$314+ 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FRA
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
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 August 18, 2025.

Round-trip from

$695
(United Airlines)

One-way from

$314
(Kiwi.com)

Popular in

May

Cheapest in

August

Average price

$753
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. 22% potential increase in price ($268 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($47 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 18, 2025.

This United Airlines deal was found by Cheapflights users on 8/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:05 amONT - FRA
1 stop19h 15mUnited Airlines
Tue 1/139:45 amFRA - ONT
2 stops45h 41mUnited Airlines
Deal found 8/17$695
This United Airlines deal was found by Cheapflights users on 8/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/255:05 amONT - FRA
2 stops16h 30mUnited Airlines
Mon 1/129:45 amFRA - ONT
2 stops45h 41mUnited Airlines
Deal found 8/17$699
This Expedia deal was found by Cheapflights users on 8/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:00 amONT - FRA
1 stop15h 15mBritish Airways
Wed 12/310:50 amFRA - ONT
1 stop18h 22mBritish Airways
Deal found 8/18$700
This Finnair deal was found by Cheapflights users on 8/18. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/197:00 amONT - FRA
1 stop15h 15mMultiple Airlines
Wed 12/310:15 amFRA - ONT
1 stop16h 32mMultiple Airlines
Deal found 8/18$706
This Finnair deal was found by Cheapflights users on 8/17. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/246:41 amONT - FRA
2 stops17h 09mMultiple Airlines
Tue 1/1310:50 amFRA - ONT
2 stops31h 43mMultiple Airlines
Deal found 8/17$711
This Finnair deal was found by Cheapflights users on 8/17. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/167:00 amONT - FRA
1 stop15h 15mMultiple Airlines
Sun 11/2310:15 amFRA - ONT
1 stop17h 07mMultiple Airlines
Deal found 8/17$712
This United Airlines deal was found by Cheapflights users on 8/16. 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.
Mon 12/15:05 amONT - FRA
1 stop19h 15mUnited Airlines
Tue 12/98:40 amFRA - ONT
2 stops23h 09mUnited Airlines
Deal found 8/16$717
This Delta deal was found by Cheapflights users on 8/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/234:58 pmONT - FRA
2 stops29h 52mDelta
Wed 1/149:50 amFRA - ONT
1 stop20h 24mDelta
Deal found 8/17$722
This Air Canada deal was found by Cheapflights users on 8/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/105:05 amONT - FRA
2 stops16h 35mMultiple Airlines
Wed 1/1410:05 amFRA - ONT
2 stops19h 12mMultiple Airlines
Deal found 8/16$724
This United Airlines deal was found by Cheapflights users on 8/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/147:00 amONT - FRA
1 stop17h 55mUnited Airlines
Wed 10/89:55 amFRA - ONT
2 stops45h 57mUnited Airlines
Deal found 8/17$725
This Gotogate deal was found by Cheapflights users on 8/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/116:10 amONT - FRA
1 stop17h 35mBritish Airways
Wed 9/1710:55 amFRA - ONT
1 stop16h 59mBritish Airways
Deal found 8/18$730
This Expedia deal was found by Cheapflights users on 8/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/88:15 amONT - FRA
1 stop15h 30mBritish Airways
Mon 9/2210:55 amFRA - ONT
1 stop16h 59mBritish Airways
Deal found 8/18$736

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 August 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

Wed 12/24

5:05 am-9:20 am

1 stop19h 15m

Frankfurt am Main

Tue 1/13

9:45 am-10:26 pm

2 stops45h 41m

$695

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Thu 12/25

5:05 am-9:20 am

1 stop19h 15m

Frankfurt am Main

Mon 1/12

9:45 am-10:26 pm

2 stops45h 41m

$695

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Thu 12/25

10:42 am-2:55 pm

1 stop19h 13m

Frankfurt am Main

Tue 1/13

9:45 am-10:26 pm

2 stops45h 41m

$695

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Wed 12/24

5:05 am-9:20 am

1 stop19h 15m

Frankfurt am Main

Mon 1/12

9:45 am-10:26 pm

2 stops45h 41m

$695

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Wed 11/19

7:00 am-7:15 am

1 stop15h 15m

Frankfurt am Main

Wed 12/3

10:50 am-8:12 pm

1 stop18h 22m

$700

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Thu 2/12

6:47 am-7:15 am

1 stop15h 28m

Frankfurt am Main

Thu 2/26

10:50 am-8:24 pm

1 stop18h 34m

$702

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Wed 11/19

7:00 am-7:15 am

1 stop15h 15m

Frankfurt am Main

Wed 12/3

10:50 am-8:12 pm

1 stop18h 22m

$706

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Fri 2/13

6:00 am-7:15 am

1 stop16h 15m

Frankfurt am Main

Fri 2/27

10:15 am-5:51 pm

1 stop16h 36m

$706

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

$707

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Sun 9/28

7:15 pm-3:00 pm

3 stops58h 45m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/17

Showing 1-10 of 18 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 $1,091). 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. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 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.

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 August 18, 2025.
See what other customers who have flown with United Airlines and British Airways 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.
United Airlines
7.4
Good
8,925 reviews

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Comfort

7.3

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
8,925 reviews
United Airlines
7.4
Good
8,925 reviews

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Comfort

7.3

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
7,277 reviews
United Airlines
7.4
Good
8,925 reviews

Overall

7.4

Crew

8.1

Food

6.6

Boarding

7.7

Entertainment

7.1

Comfort

7.3

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. 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 Airport?

    For as low as $695, United Airlines can have you in Frankfurt am Main Airport from Ontario in 19h 15m. The distance between Ontario and Frankfurt am Main Airport is about 5757 mi.

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

    United Airlines, at $730, was found to be the cheapest airline from Ontario to Frankfurt am Main Airport. An alternate airline flying to your destination would be British Airways. These flights start at 21% lower than the current average price 3 months from now.

  • 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 $1,091). 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.

See more FAQs

Traveling to a place near Frankfurt am Main Airport?

Book flights to Frankfurt am Main Airport if you plan to visit one of these locations
Koblenz
Baden-Baden
Wurzburg
Wiesbaden
Speyer
Trier
Boppard
Mainz

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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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$730Average$1,028FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$752Average$830FlexibilityNo cancel feeOn-time70%

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