What airlines fly to Ontario?

Lufthansa, Condor and United Airlines are the top three most popular airlines that fly to Ontario from Frankfurt am Main Airport according to our data. Lufthansa is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 7 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Frankfurt am Main Airport to Ontario Airport?

Prices for flights from Frankfurt am Main Airport to Ontario Airport are updated daily.

How many operators does momondo search for flights from Frankfurt am Main Airport to Ontario Airport?

As of December 2025, there is 1 operator available to choose from for flights from Frankfurt am Main Airport to Ontario Airport.

How old do you have to be to fly from Frankfurt am Main Airport to Ontario Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Frankfurt am Main Airport to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$476 Cheap Flights from Frankfurt am Main Airport to Ontario in 2025/26

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Find the cheapest flights from Frankfurt am Main Airport to Los Angeles

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:15 am - 6:39 pm

FRA

ONT

17h 24m1 stop

9:53 am - 9:55 pm

ONT

FRA

28h 02m2 stops

$662American Airlines

Sat, Feb 28 - Mon, Mar 16

10:15 am - 11:31 am

FRA

ONT

34h 16m2 stops

7:30 am - 4:45 pm

ONT

FRA

24h 15m2 stops

$663Delta

Tue, Jan 20 - Fri, Feb 6

10:15 am - 6:42 pm

FRA

ONT

16h 27m1 stop

5:02 pm - 7:40 pm

ONT

FRA

18h 38m2 stops

$664British Airways

Tue, Mar 10 - Tue, Mar 17

10:50 am - 8:24 pm

FRA

ONT

18h 34m1 stop

6:00 am - 8:45 am

ONT

FRA

17h 45m1 stop

$665British Airways

Sun, Mar 8 - Wed, Apr 8

10:15 am - 9:05 pm

FRA

ONT

19h 50m2 stops

10:30 pm - 8:40 am

ONT

FRA

25h 10m1 stop

$667Delta

Tue, Jan 20 - Fri, Feb 6

10:50 am - 9:29 pm

FRA

ONT

19h 39m1 stop

7:10 am - 7:15 am

ONT

FRA

15h 05m1 stop

$668British Airways

Thu, Feb 12 - Sun, Feb 15

7:20 am - 10:48 pm

FRA

ONT

24h 28m2 stops

7:16 am - 3:40 pm

ONT

FRA

23h 24m2 stops

$670British Airways

Thu, Jan 22 - Fri, Feb 6

10:15 am - 10:04 pm

FRA

ONT

20h 49m2 stops

5:02 pm - 6:50 pm

ONT

FRA

17h 48m2 stops

$671American Airlines

Mon, Feb 23 - Wed, Mar 18

10:50 am - 7:57 pm

FRA

ONT

18h 07m1 stop

7:10 am - 7:15 am

ONT

FRA

15h 05m1 stop

$672British Airways

Wed, Feb 18 - Tue, Mar 3

10:15 am - 6:39 pm

FRA

ONT

17h 24m1 stop

11:58 pm - 10:30 am

ONT

FRA

50h 32m2 stops

$673British Airways

Sat, Feb 21 - Fri, Mar 20

American Airlines flights from Frankfurt am Main Airport to Ontario

Our best American Airlines deals on Frankfurt am Main Airport to Ontario flight tickets

American Airlines

Feb 28

FRA10:15 amFrankfurt am Main

17h 24m

1 stop

ONT6:39 pmOntario

Mar 16

ONT9:53 amOntario

28h 02m

2 stops

FRA9:55 pmFrankfurt am Main

$662

Find similar

American Airlines

Feb 23

FRA10:15 amFrankfurt am Main

20h 49m

2 stops

ONT10:04 pmOntario

Mar 18

ONT5:02 pmOntario

17h 48m

2 stops

FRA6:50 pmFrankfurt am Main

$671

Find similar

American Airlines

Feb 24

FRA7:20 amFrankfurt am Main

20h 19m

2 stops

ONT6:39 pmOntario

Mar 22

ONT5:02 pmOntario

33h 23m

2 stops

FRA10:25 amFrankfurt am Main

$677

Find similar

Delta flights from Frankfurt am Main Airport to Ontario

Our best Delta deals on Frankfurt am Main Airport to Ontario flight tickets

Delta

Jan 20

FRA10:15 amFrankfurt am Main

34h 16m

2 stops

ONT11:31 amOntario

Feb 6

ONT7:30 amOntario

24h 15m

2 stops

FRA4:45 pmFrankfurt am Main

$663

Find similar

Delta

Jan 20

FRA11:50 amFrankfurt am Main

32h 41m

2 stops

ONT11:31 amOntario

Feb 5

ONT10:30 pmOntario

25h 10m

1 stop

FRA8:40 amFrankfurt am Main

$667

Find similar

Delta

Jan 14

FRA9:50 amFrankfurt am Main

20h 15m

1 stop

ONT9:05 pmOntario

Jan 28

ONT10:30 pmOntario

25h 10m

1 stop

FRA8:40 amFrankfurt am Main

$699

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Frankfurt am Main Airport to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Frankfurt am MainOntario

FRA - ONT

FRAONT

Frankfurt am Main

Sat 2/28

10:15 am-6:39 pm

1 stop17h 24m

Ontario

Mon 3/16

9:53 am-9:55 pm

2 stops28h 02m

$662

Frankfurt am MainOntario

FRA - ONT

FRAONT

Frankfurt am Main

Tue 1/20

10:15 am-11:31 am

2 stops34h 16m

Ontario

Fri 2/6

7:30 am-4:45 pm

2 stops24h 15m

$663

Frankfurt am MainOntario

FRA - ONT

FRAONT

Frankfurt am Main

Tue 3/10

10:15 am-6:42 pm

1 stop16h 27m

Ontario

Tue 3/17

5:02 pm-7:40 pm

2 stops18h 38m

$664

Frankfurt am MainOntario

FRA - ONT

FRAONT

Frankfurt am Main

Sun 3/8

10:50 am-8:24 pm

1 stop18h 34m

Ontario

Wed 4/8

6:00 am-8:45 am

1 stop17h 45m

$665

Frankfurt am MainOntario

FRA - ONT

FRAONT

Frankfurt am Main

Tue 1/20

10:15 am-9:05 pm

2 stops19h 50m

Ontario

Fri 2/6

10:30 pm-8:40 am

1 stop25h 10m

$667

Frankfurt am MainOntario

FRA - ONT

FRAONT

Frankfurt am Main

Thu 2/12

10:50 am-9:29 pm

1 stop19h 39m

Ontario

Sun 2/15

7:10 am-7:15 am

1 stop15h 05m

$668

Frankfurt am MainOntario

FRA - ONT

FRAONT

Frankfurt am Main

Thu 1/22

7:20 am-10:48 pm

2 stops24h 28m

Ontario

Fri 2/6

7:16 am-3:40 pm

2 stops23h 24m

$670

Frankfurt am MainOntario

FRA - ONT

FRAONT

Frankfurt am Main

Mon 2/23

10:15 am-10:04 pm

2 stops20h 49m

Ontario

Wed 3/18

5:02 pm-6:50 pm

2 stops17h 48m

$671

Frankfurt am MainOntario

FRA - ONT

FRAONT

Frankfurt am Main

Wed 2/18

10:50 am-7:57 pm

1 stop18h 07m

Ontario

Tue 3/3

7:10 am-7:15 am

1 stop15h 05m

$672

Frankfurt am MainOntario

FRA - ONT

FRAONT

Frankfurt am Main

Sat 2/21

10:15 am-6:39 pm

1 stop17h 24m

Ontario

Fri 3/20

11:58 pm-10:30 am

2 stops50h 32m

$673

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Frankfurt am Main Airport to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Friday when prices can be found for as low as $631. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Frankfurt am Main Airport to Ontario for around $1,397.

What is the cheapest time of day to depart on your flight to Ontario?

In the morning is the cheapest time of day to fly from Frankfurt am Main Airport to Ontario when you can find flight prices for as low as $694. Flying to Ontario in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,407 on average. Flights to Ontario from Frankfurt am Main Airport in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Frankfurt am Main Airport to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Frankfurt am Main Airport to Ontario according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Frankfurt am Main Airport to Ontario (FRA to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Frankfurt am Main Airport to Ontario

Fastest flight time	14h 28m
Direct flights	None

The fastest flight from Frankfurt am Main Airport to Ontario takes 14h 28m

There are no direct flights from Frankfurt am Main Airport to Ontario. There are no popular flight routes from Frankfurt am Main Airport to Ontario.

Search flight deals

How far is Frankfurt am Main to Ontario by plane?
A flight from Frankfurt am Main to Ontario will travel around 5758.0 mi. By plane, this route typically takes 14h 28m.
When did momondo last update prices for flights from Frankfurt am Main Airport to Ontario Airport?
Prices for flights from Frankfurt am Main Airport to Ontario Airport are updated daily.
How many operators does momondo search for flights from Frankfurt am Main Airport to Ontario Airport?
As of December 2025, there is 1 operator available to choose from for flights from Frankfurt am Main Airport to Ontario Airport.
How old do you have to be to fly from Frankfurt am Main Airport to Ontario Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Frankfurt am Main Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents you'll need for your trip to Ontario Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Ontario Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Frankfurt am Main Airport to Ontario?
Based on momondo bookings for flights between Frankfurt am Main Airport and Ontario, the leading airline is United Airlines, making up 100% of the total bookings.

Best airlines flying from Frankfurt am Main Airport to Ontario

Compare and see reviews for airlines that fly from Frankfurt am Main Airport to Ontario with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $595	Free Cancellation	Rating 7.4 9,066 reviews		Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Frankfurt am Main to Ontario?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Ontario from Frankfurt am Main.

Can I find flights from Frankfurt am Main to Ontario with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Frankfurt am Main to Ontario flights to just show those with flexible booking policies.

How can momondo help me find flights from Frankfurt am Main to Ontario?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ontario from Frankfurt am Main.

I’m not ready to book a flight from Frankfurt am Main to Ontario right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Ontario, momondo offers a useful price alert feature which will track prices for flights to Ontario from Frankfurt am Main and alert you when they change.