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Frankfurt

$342+ 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FRA
Mar 21 — Mar 281
Sat 3/21
Sat 3/28
1 adult, Economy
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Cheap 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 February 19, 2026.

This Billigflug deal was found by Cheapflights users on 2/18. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/911:05 am
ONT
-
FRA
1 stop13h 40m
Air Canada
Wed 4/2211:20 am
FRA
-
ONT
1 stop18h 16m
Air Canada
Deal found 2/18$885
This eDestinos deal was found by Cheapflights users on 2/15. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:00 pm
ONT
-
FRA
1 stop15h 45m
Multiple Airlines
Tue 9/152:15 pm
FRA
-
ONT
1 stop17h 24m
Multiple Airlines
Deal found 2/15$888
This United Airlines deal was found by Cheapflights users on 2/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/171:40 pm
ONT
-
FRA
2 stops39h 25m
United Airlines
Sun 4/269:55 am
FRA
-
ONT
2 stops45h 31m
United Airlines
Deal found 2/18$899
This Expedia deal was found by Cheapflights users on 2/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/47:00 am
ONT
-
FRA
1 stop15h 15m
British Airways
Wed 3/1810:15 am
FRA
-
ONT
1 stop16h 27m
British Airways
Deal found 2/17$902
This Expedia deal was found by Cheapflights users on 2/18. 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.
Thu 3/56:00 am
ONT
-
FRA
1 stop16h 15m
British Airways
Thu 3/1910:15 am
FRA
-
ONT
1 stop16h 37m
British Airways
Deal found 2/18$903
This Booking.com deal was found by Cheapflights users on 2/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/137:30 am
ONT
-
FRA
1 stop16h 15m
British Airways
Tue 4/2810:55 am
FRA
-
ONT
1 stop18h 59m
British Airways
Deal found 2/18$912
This United Airlines deal was found by Cheapflights users on 2/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/911:05 am
ONT
-
FRA
1 stop13h 40m
United Airlines
Wed 4/2211:20 am
FRA
-
ONT
1 stop18h 16m
United Airlines
Deal found 2/18$913
This American Airlines deal was found by Cheapflights users on 2/16. 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.
Tue 3/37:00 am
ONT
-
FRA
1 stop15h 15m
American Airlines
Tue 3/1710:50 am
FRA
-
ONT
1 stop16h 55m
American Airlines
Deal found 2/16$914
This Billigflug deal was found by Cheapflights users on 2/16. 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.
Mon 4/611:05 am
ONT
-
FRA
1 stop13h 40m
Multiple Airlines
Tue 4/211:55 pm
FRA
-
ONT
1 stop16h 55m
Multiple Airlines
Deal found 2/16$916
This Billigflug deal was found by Cheapflights users on 2/18. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1211:05 am
ONT
-
FRA
1 stop13h 40m
Multiple Airlines
Tue 4/281:55 pm
FRA
-
ONT
1 stop16h 55m
Multiple Airlines
Deal found 2/18$921
This United Airlines deal was found by Cheapflights users on 2/19. 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 4/151:27 pm
ONT
-
FRA
1 stop16h 48m
United Airlines
Wed 4/2911:20 am
FRA
-
ONT
1 stop18h 16m
United Airlines
Deal found 2/19$922

Find 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 February 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$884
(Billigflug)

One-way from

$342
(Trip.com)

Popular in

June

Cheapest in

October

Average price

$745
Provider with most accurate pricing for Ontario-Frankfurt am Main flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Frankfurt am Main flights.
Search Deals
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. 26% potential increase in price ($338 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($51 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 19, 2026.
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

Tue 3/17

6:15 am-10:30 am

1 stop20h 15m

Frankfurt am Main

Sun 4/26

9:55 am-10:26 pm

2 stops45h 31m

$902

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Sun 4/12

11:59 pm-8:45 am

1 stop23h 46m

Frankfurt am Main

Tue 4/28

9:20 am-8:27 pm

1 stop20h 07m

$922

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Wed 4/15

11:05 am-9:45 am

1 stop13h 40m

Frankfurt am Main

Fri 5/1

5:30 pm-10:59 pm

1 stop14h 29m

$922

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Tue 4/14

5:10 am-9:20 am

1 stop19h 10m

Frankfurt am Main

Fri 5/1

1:55 pm-9:58 pm

1 stop17h 03m

$922

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Thu 4/16

11:05 am-9:45 am

1 stop13h 40m

Frankfurt am Main

Thu 4/30

5:30 pm-10:59 pm

1 stop14h 29m

$922

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Wed 4/15

11:05 am-9:45 am

1 stop13h 40m

Frankfurt am Main

Mon 4/27

12:40 pm-10:26 pm

1 stop18h 46m

$922

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Thu 4/16

1:27 pm-3:15 pm

1 stop16h 48m

Frankfurt am Main

Tue 4/28

11:20 am-8:36 pm

1 stop18h 16m

$922

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Thu 4/16

7:00 am-6:30 am

1 stop14h 30m

Frankfurt am Main

Wed 4/29

11:20 am-8:36 pm

1 stop18h 16m

$922

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Wed 4/15

1:27 pm-3:15 pm

1 stop16h 48m

Frankfurt am Main

Wed 4/29

11:20 am-8:36 pm

1 stop18h 16m

$922

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Wed 4/15

7:00 am-9:55 am

1 stop17h 55m

Frankfurt am Main

Sun 4/26

12:55 pm-10:45 pm

1 stop18h 50m

$922

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/17

Showing 1-10 of 22 results
1
2
3

Compare providers for flights from Ontario to Frankfurt

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Frankfurt in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Frankfurt am Main Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Frankfurt am Main Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Frankfurt am Main Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Frankfurt am Main Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Frankfurt am Main Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, February is the cheapest month in which you can book a flight from Ontario to Frankfurt am Main Airport (average of $528). Flying from Ontario to Frankfurt am Main Airport in June is currently the most expensive (average of $743). 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.

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 February 19, 2026.
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
9,321 reviews

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Crew

8.1

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
9,321 reviews
United Airlines
7.4
Good
9,321 reviews

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Crew

8.1

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
7,752 reviews
United Airlines
7.4
Good
9,321 reviews

Boarding

7.7

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Crew

8.1

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. 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 $902, United Airlines can have you in Frankfurt am Main Airport from Ontario in 20h 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 $700, 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 24% 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, February is the cheapest month in which you can book a flight from Ontario to Frankfurt am Main Airport (average of $528). Flying from Ontario to Frankfurt am Main Airport in June is currently the most expensive (average of $743). 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
Wurzburg
Baden-Baden
Speyer
Wiesbaden
Heilbronn
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 February 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$700Average$875FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$719Average$1,023FlexibilityNo cancel feeOn-time70%

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