HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Heidelberg

$335+ Cheap flights from Ontario (ONT) to Heidelberg, Germany

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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FRA
Feb 4 — Feb 111
Tue 2/4
Tue 2/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Heidelberg with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to Heidelberg

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Heidelberg (HE1). 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 January 30, 2025.

Round-trip from

$706
(Booking.com)

One-way from

$335
(Mytrip)

Popular in

July

Cheapest in

April

Average price

$830
From Ontario to Heidelberg
Search Deals
One-way flight from Ontario to Heidelberg
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($102 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2025
Search Deals

Find flight deals from Ontario to Heidelberg

Cheapest flights from Ontario to Heidelberg
Explore the most affordable flight options available from Ontario to Heidelberg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 30, 2025.

This Booking.com deal was found by Cheapflights users on 1/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/247:00 amONT - FRA
1 stop16h 15mBritish Airways
Tue 4/810:55 amFRA - ONT
1 stop16h 34mBritish Airways
Deal found 1/30$707
This American Airlines deal was found by Cheapflights users on 1/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/247:00 amONT - FRA
2 stops17h 50mAmerican Airlines
Tue 4/810:55 amFRA - ONT
1 stop35h 51mAmerican Airlines
Deal found 1/30$713
This United deal was found by Cheapflights users on 1/30. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/236:00 amONT - FRA
1 stop20h 30mUnited Airlines
Mon 3/319:55 amFRA - ONT
2 stops43h 47mUnited Airlines
Deal found 1/30$719
This Delta deal was found by Cheapflights users on 1/30. 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.
Sun 3/237:00 amONT - FRA
1 stop17h 40mDelta
Tue 4/110:40 amFRA - ONT
1 stop21h 03mDelta
Deal found 1/30$722
This Trip.com deal was found by Cheapflights users on 1/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/222:54 pmONT - FRA
1 stop32h 21mIberia
Fri 4/410:55 amFRA - ONT
1 stop20h 16mIberia
Deal found 1/30$758
This Air Canada deal was found by Cheapflights users on 1/30. 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.
Sun 2/95:10 amONT - FRA
2 stops16h 20mMultiple Airlines
Wed 2/1910:40 amFRA - ONT
2 stops19h 00mMultiple Airlines
Deal found 1/30$872
This AirNGo deal was found by Cheapflights users on 1/30. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/810:59 pmONT - FRA
1 stop24h 56mKLM
Fri 8/2210:40 amFRA - ONT
1 stop20h 49mKLM
Deal found 1/30$1,079
This Alaska Airlines deal was found by Cheapflights users on 1/30. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/37:00 amONT - FRA
2 stops20h 30mAlaska Airlines
Sat 3/81:05 pmFRA - ONT
1 stop16h 12mAlaska Airlines
Deal found 1/30$1,097
This Billigflug deal was found by Cheapflights users on 1/30. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/110:40 amONT - FRA
1 stop13h 30mAir Canada
Sat 9/135:30 pmFRA - ONT
1 stop14h 23mAir Canada
Deal found 1/30$1,325
This WestJet deal was found by Cheapflights users on 1/30. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/111:29 amONT - FRA
2 stops40h 16mWestJet
Sat 5/102:25 pmFRA - ONT
2 stops35h 49mWestJet
Deal found 1/30$1,986

Find flights from Ontario to Heidelberg within your budget

Customize your flight search to find flights from Ontario to Heidelberg 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 January 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Fri 2/14

6:05 am-7:15 am

1 stop16h 10m

Frankfurt am Main

Thu 2/27

10:50 am-6:35 pm

1 stop16h 45m

$706

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Wed 2/12

7:00 am-7:15 am

1 stop15h 15m

Frankfurt am Main

Wed 2/26

10:50 am-6:35 pm

1 stop16h 45m

$710

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Sun 3/23

6:00 am-7:25 am

2 stops17h 25m

Frankfurt am Main

Mon 3/31

9:55 am-8:42 pm

2 stops43h 47m

$719

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Sun 2/9

7:05 am-8:40 am

1 stop16h 35m

Frankfurt am Main

Wed 2/19

11:40 am-10:52 pm

1 stop20h 12m

$722

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Tue 3/25

5:05 am-7:25 am

2 stops18h 20m

Frankfurt am Main

Sun 4/6

9:55 am-8:42 pm

2 stops43h 47m

$732

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Wed 2/12

5:10 am-6:30 am

3 stops40h 20m

Frankfurt am Main

Wed 2/19

10:40 am-8:40 pm

2 stops19h 00m

$749

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Tue 3/25

7:00 am-7:15 am

1 stop16h 15m

Frankfurt am Main

Sun 4/6

10:55 am-11:51 pm

1 stop21h 56m

$754

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Tue 4/29

10:59 pm-8:55 am

1 stop24h 56m

Frankfurt am Main

Tue 5/13

10:40 am-10:41 pm

1 stop21h 01m

$789

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Sat 3/8

11:57 am-12:30 pm

1 stop15h 33m

Frankfurt am Main

Tue 3/11

1:15 pm-9:27 pm

1 stop16h 12m

$1,079

OntarioFrankfurt am Main

ONT - FRA

ONTFRA

Ontario

Mon 3/31

10:21 am-12:10 pm

1 stop16h 49m

$439

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/29

Showing 1-10 of 20 results
1
2

Best time to book a flight from Ontario to Heidelberg

Have a flexible travel schedule? Discover the best time to fly to Heidelberg 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.

Travel insights for flights from Ontario to Heidelberg

Get recent, data-driven insights about flights from Ontario to Heidelberg including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Ontario to Heidelberg?

Currently, January is the cheapest month in which you can book a flight from Ontario to Heidelberg (average of $729). Flying from Ontario to Heidelberg in June is currently the most expensive (average of $1,112). 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 HE1?

Find hourly flight availability from Ontario to Heidelberg. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 30, 2025.

When flying from Ontario to Heidelberg, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Heidelberg by month

Plan your trip to Heidelberg by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Heidelberg 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 Heidelberg when rainfall is around 1.6 in.

Temperature in Heidelberg by month

Plan your trip to Heidelberg by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Heidelberg, 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 Heidelberg

Get insights into the airlines that provide service to Heidelberg. 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 Heidelberg. Reviews last updated January 30, 2025.
See what other customers who have flown with China Airlines, Alaska Airlines and Delta from Ontario to Heidelberg have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.2
Very good
726 reviews

Overall

8.2

Comfort

8.0

Boarding

8.3

Crew

8.5

Food

7.8

Entertainment

8.0

Reviews

1 / 20

6.0
Good

Alex,Dec 2024

SYD - TPE

For the money it’s good value. Seat space rather small

China Airlines
8.2
Very good
726 reviews
China Airlines
8.2
Very good
726 reviews

Overall

8.2

Comfort

8.0

Boarding

8.3

Crew

8.5

Food

7.8

Entertainment

8.0

Reviews

1 / 20

6.0
Good

Alex,Dec 2024

SYD - TPE

For the money it’s good value. Seat space rather small

Alaska Airlines
8.0
Very good
9,688 reviews
China Airlines
8.2
Very good
726 reviews

Overall

8.2

Comfort

8.0

Boarding

8.3

Crew

8.5

Food

7.8

Entertainment

8.0

Reviews

1 / 20

6.0
Good

Alex,Dec 2024

SYD - TPE

For the money it’s good value. Seat space rather small

Delta
8.0
Very good
8,454 reviews
China Airlines
8.2
Very good
726 reviews

Overall

8.2

Comfort

8.0

Boarding

8.3

Crew

8.5

Food

7.8

Entertainment

8.0

Reviews

1 / 20

6.0
Good

Alex,Dec 2024

SYD - TPE

For the money it’s good value. Seat space rather small

KLM
7.8
Good
1,335 reviews
China Airlines
8.2
Very good
726 reviews

Overall

8.2

Comfort

8.0

Boarding

8.3

Crew

8.5

Food

7.8

Entertainment

8.0

Reviews

1 / 20

6.0
Good

Alex,Dec 2024

SYD - TPE

For the money it’s good value. Seat space rather small

Air France
7.4
Good
1,475 reviews
China Airlines
8.2
Very good
726 reviews

Overall

8.2

Comfort

8.0

Boarding

8.3

Crew

8.5

Food

7.8

Entertainment

8.0

Reviews

1 / 20

6.0
Good

Alex,Dec 2024

SYD - TPE

For the money it’s good value. Seat space rather small

Related info for your journey

Find useful and relevant information for your journey from Ontario to Heidelberg. 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 Heidelberg?

    Most people fly from Ontario (ONT) if they book a flight from Ontario to Heidelberg. On average, Ontario has 0 outbound flights to Heidelberg per day from 2 airlines. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

  • What are the cheapest airlines to fly from Ontario to Heidelberg one-way?

    The cheapest airline one-way is British Airways, with whom users have recently found tickets for as low as $468. However, be on the lookout for offers from American Airlines and Delta, as they are both options that can get you from Ontario to Heidelberg for a low price.

  • Can I find deals for flights from Ontario to Heidelberg that include hotel bookings?

    Yes. In addition to deals on Ontario to Heidelberg flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Heidelberg?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Heidelberg.

  • Can I find deals for business class flights from Ontario to Heidelberg?

    Yes. Cheapflights offers flight deals from Ontario to Heidelberg 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 Heidelberg?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Heidelberg (average of $729). Flying from Ontario to Heidelberg in June is currently the most expensive (average of $1,112). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Heidelberg

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Frankfurt flights
San Francisco to Frankfurt flights
Los Angeles to Munich flights
San Francisco to Munich flights
Ontario to Frankfurt flights
Las Vegas to Frankfurt flights
Santa Ana to Frankfurt flights
Burbank to Frankfurt flights
San Jose to Frankfurt flights
San Diego to Munich flights
Oakland to Frankfurt flights
San Diego to Frankfurt flights
San Jose to Munich flights
Ontario to Munich flights
Santa Ana to Munich flights
Burbank to Munich flights
Oakland to Munich flights
Las Vegas to Munich flights
Reno to Frankfurt flights
Los Angeles to Stuttgart flights
Sacramento to Munich flights
Sacramento to Frankfurt flights
San Francisco to Stuttgart flights
Fresno to Frankfurt flights
Reno to Munich flights
Fresno to Munich flights
Long Beach to Frankfurt flights
San Jose to Stuttgart flights
Medford to Frankfurt flights
Ontario to Stuttgart flights
Santa Barbara to Munich flights
San Diego to Stuttgart flights
Long Beach to Munich flights
Santa Rosa to Frankfurt flights
San Luis Obispo to Frankfurt flights
San Luis Obispo to Munich flights
Santa Rosa to Munich flights
Sacramento to Stuttgart flights
Oakland to Stuttgart flights
San Jose to Friedrichshafen flights
Monterey to Munich flights
Las Vegas to Stuttgart flights
Redding to Munich flights
Santa Ana to Stuttgart flights
Monterey to Frankfurt flights
Reno to Stuttgart flights
Monterey to Stuttgart flights
Arcata to Munich flights
San Francisco to Karlsruhe flights

Top 2 airlines flying from Ontario to Heidelberg

Discover the top 2 airlines that operate flights from Ontario to Heidelberg. 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 January 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$737Average$892FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$751Average$830FlexibilityNo cancel feeOn-time70%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.