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Frankfurt

$474+ 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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FRA
Dec 4 — Dec 111
Thu 12/4
Thu 12/11
1 adult, Economy
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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 November 4, 2025.

This Billigflug deal was found by Cheapflights users on 11/2. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/95:05 amONT - FRA
1 stop19h 15mAir Canada
Sun 11/235:25 pmFRA - ONT
1 stop14h 26mAir Canada
Deal found 11/2$677
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Sat 11/295:05 amONT - FRA
1 stop19h 15mUnited Airlines
Sat 12/65:10 pmFRA - ONT
2 stops36h 32mUnited Airlines
Deal found 11/2$700
This Delta deal was found by Cheapflights users on 11/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/287:05 amONT - FRA
1 stop16h 35mDelta
Tue 1/139:50 amFRA - ONT
1 stop35h 04mDelta
Deal found 11/2$703
This United Airlines deal was found by Cheapflights users on 11/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/167:00 amONT - FRA
2 stops20h 05mUnited Airlines
Mon 11/248:15 amFRA - ONT
2 stops18h 19mUnited Airlines
Deal found 11/3$710
This Billigflug deal was found by Cheapflights users on 11/1. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/85:05 amONT - FRA
1 stop19h 15mAir Canada
Tue 1/1311:10 amFRA - ONT
1 stop18h 48mAir Canada
Deal found 11/1$712
This Delta deal was found by Cheapflights users on 11/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/97:05 amONT - FRA
1 stop16h 35mDelta
Wed 11/196:55 amFRA - ONT
2 stops18h 14mDelta
Deal found 11/2$716
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Sun 11/97:00 amONT - FRA
1 stop14h 35mUnited Airlines
Sat 11/2212:50 pmFRA - ONT
1 stop18h 41mUnited Airlines
Deal found 11/2$717
This Delta deal was found by Cheapflights users on 11/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1010:25 pmONT - FRA
1 stop25h 15mDelta
Fri 11/216:55 amFRA - ONT
2 stops19h 14mDelta
Deal found 11/2$722
This Delta deal was found by Cheapflights users on 11/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2310:25 pmONT - FRA
1 stop25h 15mDelta
Wed 12/39:50 amFRA - ONT
1 stop22h 14mDelta
Deal found 11/2$723
This Delta deal was found by Cheapflights users on 11/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1012:16 pmONT - FRA
2 stops16h 24mDelta
Tue 11/186:55 amFRA - ONT
2 stops19h 14mDelta
Deal found 11/2$725

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 November 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$677
(Billigflug)

One-way from

$474
(Iberia)

Popular in

May

Cheapest in

October

Average price

$913
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. 24% potential increase in price ($311 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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 November 4, 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 1/7

6:00 am-9:35 am

1 stop18h 35m

Frankfurt am Main

Tue 2/10

5:10 pm-8:58 pm

2 stops36h 48m

$700

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Sat 11/29

5:05 am-9:20 am

1 stop19h 15m

Frankfurt am Main

Sat 12/6

5:10 pm-8:42 pm

2 stops36h 32m

$700

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Sun 12/28

10:29 pm-8:40 am

1 stop25h 11m

Frankfurt am Main

Tue 1/13

9:50 am-9:07 pm

1 stop20h 17m

$705

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Mon 3/2

6:00 am-11:05 am

2 stops20h 05m

Frankfurt am Main

Tue 3/24

8:40 am-10:15 pm

1 stop21h 35m

$713

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Thu 11/13

7:05 am-8:40 am

1 stop16h 35m

Frankfurt am Main

Tue 11/18

6:55 am-10:55 pm

2 stops25h 00m

$716

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Thu 11/13

7:05 am-8:40 am

1 stop16h 35m

Frankfurt am Main

Wed 11/19

6:55 am-4:09 pm

2 stops18h 14m

$716

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Wed 11/26

7:05 am-8:40 am

1 stop16h 35m

Frankfurt am Main

Mon 12/8

6:55 am-5:07 pm

2 stops19h 12m

$716

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Thu 4/2

7:00 am-7:25 am

1 stop15h 25m

Frankfurt am Main

Mon 4/6

12:15 pm-10:26 pm

2 stops19h 11m

$716

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Thu 11/13

7:05 am-8:40 am

1 stop16h 35m

Frankfurt am Main

Sun 11/16

10:15 am-11:04 pm

2 stops21h 49m

$716

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Sat 1/10

6:00 am-10:30 am

1 stop19h 30m

Frankfurt am Main

Fri 1/23

1:20 pm-10:53 pm

1 stop18h 33m

$717

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 22 results
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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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Frankfurt am Main Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 $465). Flying from Ontario to Frankfurt am Main Airport 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. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 4, 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 23% versus a flight in the afternoon.

How much does it cost to fly round-trip from Ontario to Frankfurt am Main Airport?

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 November 4, 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
8,998 reviews

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

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
8,998 reviews
United Airlines
7.4
Good
8,998 reviews

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

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
7,494 reviews
United Airlines
7.4
Good
8,998 reviews

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

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 $700, United Airlines can have you in Frankfurt am Main Airport from Ontario in 18h 35m. The distance between Ontario and Frankfurt am Main Airport is about 5757 mi. This flight may include one or multiple stops.

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

    United Airlines, at $712, 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.

  • 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 $474. Users have also found prices from $488 and $505 on Air Canada and United Airlines, 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, February is the cheapest month in which you can book a flight from Ontario to Frankfurt am Main Airport (average of $465). Flying from Ontario to Frankfurt am Main Airport 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.

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
Speyer
Wiesbaden
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 November 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$712Average$907FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$719Average$830FlexibilityNo cancel feeOn-time70%

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