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Frankfurt

$400+ 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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FRA
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
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 March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$786
(Ticket)

One-way from

$400
(Trip.com)

Popular in

July

Cheapest in

September

Average price

$829
Provider with most accurate pricing for Ontario-Frankfurt am Main flight deals.
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Provider most trusted by Cheapflights users for Ontario-Frankfurt am Main flights.
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From Ontario to Frankfurt am Main
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One-way flight from Ontario to Frankfurt am Main
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($94 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 26, 2025.

This Booking.com deal was found by Cheapflights users on 3/25. 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.
Tue 10/216:38 amONT - FRA
1 stop17h 07mBritish Airways
Tue 11/410:15 amFRA - ONT
1 stop16h 34mBritish Airways
Deal found 3/25$736
This Finnair deal was found by Cheapflights users on 3/26. 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 11/28:46 amONT - FRA
1 stop13h 29mMultiple Airlines
Sun 11/1610:15 amFRA - ONT
1 stop16h 34mMultiple Airlines
Deal found 3/26$737
This Delta deal was found by Cheapflights users on 3/25. 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 10/610:59 pmONT - FRA
1 stop24h 56mDelta
Tue 11/119:50 amFRA - ONT
1 stop18h 39mDelta
Deal found 3/25$747
This United Airlines deal was found by Cheapflights users on 3/25. 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 4/13:55 pmONT - FRA
1 stop14h 20mUnited Airlines
Wed 4/235:30 pmFRA - ONT
1 stop14h 25mUnited Airlines
Deal found 3/25$782
This Ticket deal was found by Cheapflights users on 3/25. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/57:00 amONT - FRA
1 stop16h 55mKLM
Tue 5/2010:40 amFRA - ONT
1 stop20h 49mKLM
Deal found 3/25$786
This American Airlines deal was found by Cheapflights users on 3/25. 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 4/157:00 amONT - FRA
1 stop16h 45mAmerican Airlines
Tue 4/2910:55 amFRA - ONT
1 stop16h 34mAmerican Airlines
Deal found 3/25$809
This Iberia deal was found by Cheapflights users on 3/26. 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.
Wed 4/97:00 amONT - FRA
1 stop16h 45mIberia
Wed 4/2310:55 amFRA - ONT
1 stop20h 15mIberia
Deal found 3/26$816
This AirNGo deal was found by Cheapflights users on 3/25. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/267:00 amONT - FRA
1 stop16h 55mAir France
Sat 8/910:40 amFRA - ONT
1 stop17h 49mAir France
Deal found 3/25$1,341
This WestJet deal was found by Cheapflights users on 3/26. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/147:00 amONT - FRA
2 stops20h 45mWestJet
Thu 8/2112:25 pmFRA - ONT
2 stops19h 16mWestJet
Deal found 3/26$2,184

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 March 26, 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 5/5

7:00 am-8:55 am

1 stop16h 55m

Frankfurt am Main

Tue 5/20

10:40 am-10:29 pm

1 stop20h 49m

$786

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Sat 4/5

7:00 am-8:45 am

1 stop16h 45m

Frankfurt am Main

Sat 4/19

10:55 am-6:29 pm

1 stop16h 34m

$804

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Tue 4/15

7:00 am-8:45 am

1 stop16h 45m

Frankfurt am Main

Tue 4/29

10:55 am-6:29 pm

1 stop16h 34m

$809

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Wed 4/9

7:00 am-8:45 am

1 stop16h 45m

Frankfurt am Main

Wed 4/23

10:55 am-10:10 pm

1 stop20h 15m

$816

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Wed 8/20

1:00 pm-11:30 am

1 stop13h 30m

Frankfurt am Main

Fri 9/5

5:30 pm-10:53 pm

1 stop14h 23m

$817

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Fri 9/12

10:59 pm-8:55 am

1 stop24h 56m

Frankfurt am Main

Sun 10/12

10:40 am-10:29 pm

1 stop20h 49m

$1,038

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Wed 5/14

4:15 pm-8:10 am

3 stops30h 55m

Frankfurt am Main

Wed 5/21

5:05 pm-12:14 pm

2 stops28h 09m

$1,057

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Sat 7/26

7:00 am-8:55 am

1 stop16h 55m

Frankfurt am Main

Sat 8/9

10:40 am-7:29 pm

1 stop17h 49m

$1,341

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Thu 8/14

7:00 am-12:45 pm

2 stops20h 45m

Frankfurt am Main

Thu 8/21

12:25 pm-10:41 pm

2 stops19h 16m

$2,184

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Sat 4/26

8:10 am-12:40 pm

1 stop19h 30m

$400

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 21 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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 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, 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 $1,082). 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 March 26, 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 March 26, 2025.
See what other customers who have flown with China Airlines, Alaska Airlines and Delta 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
8.2
Very good
722 reviews

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Crew

8.5

Food

7.8

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
China Airlines
8.2
Very good
722 reviews
China Airlines
8.2
Very good
722 reviews

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Crew

8.5

Food

7.8

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
Alaska Airlines
8.0
Very good
9,789 reviews
China Airlines
8.2
Very good
722 reviews

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Crew

8.5

Food

7.8

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
Delta
8.0
Very good
7,891 reviews
China Airlines
8.2
Very good
722 reviews

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Crew

8.5

Food

7.8

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
KLM
7.8
Good
1,318 reviews
China Airlines
8.2
Very good
722 reviews

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Crew

8.5

Food

7.8

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
Air France
7.4
Good
1,423 reviews
China Airlines
8.2
Very good
722 reviews

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Crew

8.5

Food

7.8

Overall

8.2

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence

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?

    KLM, at $786, was found to be the cheapest airline from Ontario to Frankfurt am Main Airport.Alternate airlines to your destination round-trip include British Airways and American Airlines. These flights start at 11% 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 United Airlines. According to our data, you can fly for as low as $492. Users have also found prices from $507 and $514 on Iberia and Delta, 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 $1,082). 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
Speyer
Wiesbaden
Mainz
Trier
Baden-Baden
Boppard
Bensheim
Darmstadt
Heilbronn
Cochem
Nuerburg

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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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$745Average$905FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$751Average$830FlexibilityNo cancel feeOn-time70%
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