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Cheap flights from Ontario to Warsaw from $345

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Warsaw departing on 11/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ontario to Warsaw (ONT-WAW)

Cheap round-trip flights

United Airlines Logo
10:40 am - 12:55 pmONT-WAW
17h 15m2 stops
United Airlines Logo
6:30 am - 8:17 pmWAW-ONT
22h 47m2 stops
$520United Airlines
Find Deal
Sat, Feb 21 - Sat, Mar 7
United Airlines Logo
11:59 pm - 5:15 pmONT-WAW
32h 16m2 stops
United Airlines Logo
6:30 am - 10:26 pmWAW-ONT
48h 56m2 stops
$536United Airlines
Find Deal
Fri, Dec 26 - Fri, Jan 9
United Airlines Logo
10:42 am - 12:55 pmONT-WAW
17h 13m2 stops
United Airlines Logo
6:30 am - 8:58 pmWAW-ONT
23h 28m2 stops
$540United Airlines
Find Deal
Sat, Dec 27 - Sat, Jan 10
United Airlines Logo
10:40 am - 4:15 pmONT-WAW
20h 35m2 stops
United Airlines Logo
6:30 am - 7:17 pmWAW-ONT
21h 47m2 stops
$542United Airlines
Find Deal
Sun, Feb 22 - Sun, Mar 8
United Airlines Logo
9:36 am - 1:35 pmONT-WAW
18h 59m2 stops
United Airlines Logo
2:35 pm - 10:51 pmWAW-ONT
17h 16m2 stops
$543United Airlines
Find Deal
Wed, Oct 22 - Wed, Nov 5
British Airways Logo
3:00 pm - 5:25 pmONT-WAW
17h 25m2 stops
British Airways Logo
7:00 am - 5:53 pmWAW-ONT
19h 53m2 stops
$594British Airways
Find Deal
Thu, Jan 22 - Thu, Feb 5
Logo
6:51 pm - 10:00 pmONT-WAW
18h 09m2 stops
Logo
2:20 pm - 10:52 pmWAW-ONT
17h 32m2 stops
$630
Find Deal
Sat, Oct 11 - Sat, Oct 18
British Airways Logo
5:03 pm - 6:50 pmONT-WAW
16h 47m2 stops
British Airways Logo
6:55 am - 5:53 pmWAW-ONT
19h 58m2 stops
$641British Airways
Find Deal
Sun, Jan 25 - Sun, Feb 8
LOT Logo
10:56 pm - 8:15 amONT-WAW
24h 19m1 stop
LOT Logo
12:25 pm - 9:29 pmWAW-ONT
18h 04m1 stop
$967LOT
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Mon, Oct 6 - Wed, Oct 22
LOT Logo
10:56 pm - 8:15 amONT-WAW
24h 19m1 stop
LOT Logo
12:25 pm - 9:29 pmWAW-ONT
18h 04m1 stop
$993LOT
Find Deal
Tue, Sep 30 - Wed, Oct 22

United Airlines flights from Ontario to Warsaw Frederic Chopin Airport

Our best United Airlines deals on Ontario to Warsaw Frederic Chopin Airport flight tickets
United Airlines
Feb 21
ONT10:40 amOntario
17h 15m
2 stops
WAW12:55 pmWarsaw Frederic Chopin
Mar 7
WAW6:30 amWarsaw Frederic Chopin
22h 47m
2 stops
ONT8:17 pmOntario
$520
Find similar
United Airlines
Dec 26
ONT11:59 pmOntario
32h 16m
2 stops
WAW5:15 pmWarsaw Frederic Chopin
Jan 9
WAW6:30 amWarsaw Frederic Chopin
48h 56m
2 stops
ONT10:26 pmOntario
$536
Find similar
United Airlines
Dec 27
ONT10:42 amOntario
17h 13m
2 stops
WAW12:55 pmWarsaw Frederic Chopin
Jan 10
WAW6:30 amWarsaw Frederic Chopin
23h 28m
2 stops
ONT8:58 pmOntario
$540
Find similar

British Airways flights from Ontario to Warsaw Frederic Chopin Airport

Our best British Airways deals on Ontario to Warsaw Frederic Chopin Airport flight tickets
British Airways
Jan 22
ONT3:00 pmOntario
17h 25m
2 stops
WAW5:25 pmWarsaw Frederic Chopin
Feb 5
WAW7:00 amWarsaw Frederic Chopin
19h 53m
2 stops
ONT5:53 pmOntario
$594
Find similar
British Airways
Jan 25
ONT5:03 pmOntario
16h 47m
2 stops
WAW6:50 pmWarsaw Frederic Chopin
Feb 8
WAW6:55 amWarsaw Frederic Chopin
19h 58m
2 stops
ONT5:53 pmOntario
$641
Find similar
British Airways
Sep 17
ONT4:45 pmOntario
19h 05m
2 stops
WAW8:50 pmWarsaw Frederic Chopin
Nov 26
WAW12:45 pmWarsaw Frederic Chopin
20h 12m
2 stops
ONT11:57 pmOntario
$646
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Warsaw Frederic Chopin Airport 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, momondo users made 832,500 searches. Data last updated August 27, 2025.
Use the filters below to find and compare flights from Ontario to Warsaw Frederic Chopin Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Sat 2/21

10:40 am-12:55 pm

2 stops17h 15m

Warsaw Frederic Chopin

Sat 3/7

6:30 am-8:17 pm

2 stops22h 47m

$520

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Fri 12/26

11:59 pm-5:15 pm

2 stops32h 16m

Warsaw Frederic Chopin

Fri 1/9

6:30 am-10:26 pm

2 stops48h 56m

$536

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Sat 12/27

10:42 am-12:55 pm

2 stops17h 13m

Warsaw Frederic Chopin

Sat 1/10

6:30 am-8:58 pm

2 stops23h 28m

$540

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Sun 2/22

10:40 am-4:15 pm

2 stops20h 35m

Warsaw Frederic Chopin

Sun 3/8

6:30 am-7:17 pm

2 stops21h 47m

$542

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Wed 10/22

9:36 am-1:35 pm

2 stops18h 59m

Warsaw Frederic Chopin

Wed 11/5

2:35 pm-10:51 pm

2 stops17h 16m

$543

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Thu 1/22

3:00 pm-5:25 pm

2 stops17h 25m

Warsaw Frederic Chopin

Thu 2/5

7:00 am-5:53 pm

2 stops19h 53m

$594

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Sat 10/11

6:51 pm-10:00 pm

2 stops18h 09m

Warsaw Frederic Chopin

Sat 10/18

2:20 pm-10:52 pm

2 stops17h 32m

$630

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Sun 1/25

5:03 pm-6:50 pm

2 stops16h 47m

Warsaw Frederic Chopin

Sun 2/8

6:55 am-5:53 pm

2 stops19h 58m

$641

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Mon 10/6

10:56 pm-8:15 am

1 stop24h 19m

Warsaw Frederic Chopin

Wed 10/22

12:25 pm-9:29 pm

1 stop18h 04m

$967

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Tue 9/30

10:56 pm-8:15 am

1 stop24h 19m

Warsaw Frederic Chopin

Wed 10/22

12:25 pm-9:29 pm

1 stop18h 04m

$993

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Ontario to Warsaw Frederic Chopin Airport

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

What is the cheapest day to depart on your flight to Warsaw Frederic Chopin Airport?

The cheapest day to depart from Ontario to Warsaw Frederic Chopin Airport is on a Wednesday when prices can be found for as low as $1,007. Flights from Ontario to Warsaw Frederic Chopin Airport on a Sunday will generally be more expensive and average around $1,165. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Warsaw Frederic Chopin Airport?

The cheapest time of day to fly to Warsaw Frederic Chopin Airport is in the morning when flights can be purchased for as low as $686. Flights in the evening are often more expensive with an average ticket price of $1,111.

When to book flights from Ontario to Warsaw Frederic Chopin Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Warsaw Frederic Chopin Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Warsaw Frederic Chopin Airport (ONT to WAW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Warsaw Frederic Chopin Airport

Direct flights

None
There are no direct flights from Ontario to Warsaw Frederic Chopin Airport. There are no popular flight routes from Ontario to Warsaw Frederic Chopin Airport.
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  • How far is Ontario to Warsaw Frederic Chopin by plane?

    There are 5972.2 mi between Ontario and Warsaw Frederic Chopin. By plane, this route typically takes 16h 01m.

  • When did momondo last update prices for flights from Ontario Airport to Warsaw Frederic Chopin Airport?

    Prices for flights from Ontario Airport to Warsaw Frederic Chopin Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Ontario Airport to Warsaw Frederic Chopin 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 Ontario Airport to Warsaw Frederic Chopin Airport.

  • What documentation or ID do you need to fly to Warsaw Frederic Chopin Airport?

    The required travel and health documents for your Warsaw Frederic Chopin Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Warsaw Frederic Chopin Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Warsaw?

Book flights to Warsaw if you plan to visit one of these locations
Kielce
Kazimierz Dolny

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Warsaw?

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 Warsaw from Ontario.

Can I find flights from Ontario to Warsaw with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Warsaw from Ontario with this policy.

How can momondo help me find flights from Ontario to Warsaw?

Once all potential Ontario to Warsaw flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Ontario to Warsaw flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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