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Cheap flights from Ontario to Warsaw from $359

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 11/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Ontario to Warsaw

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
12:00 pm - 4:30 pmONT  Ontario-WAW Warsaw Frederic Chopin
19h 30m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
Delta Logo
6:05 am - 4:12 pmWAW  Warsaw Frederic Chopin-ONT Ontario
19h 07m2 stops Amsterdam Schiphol Salt Lake City
$717Delta
Wed, Jan 6 - Tue, Jan 12
Delta Logo
6:00 am - 4:30 pmONT  Ontario-WAW Warsaw Frederic Chopin
25h 30m2 stops Salt Lake City Paris Charles de Gaulle
Delta Logo
6:05 am - 11:48 pmWAW  Warsaw Frederic Chopin-ONT Ontario
26h 43m2 stops Amsterdam Schiphol Salt Lake City
$717Delta
Sun, Dec 13 - Fri, Dec 25
United Airlines Logo
6:53 pm - 10:30 pmONT  Ontario-WAW Warsaw Frederic Chopin
18h 37m2 stops San Francisco Munich Franz Josef Strauss
United Airlines Logo
6:30 am - 8:20 pmWAW  Warsaw Frederic Chopin-ONT Ontario
22h 50m2 stops Frankfurt am Main Denver Intl
$719United Airlines
Tue, Feb 2 - Tue, Feb 16
United Airlines Logo
6:53 pm - 10:30 pmONT  Ontario-WAW Warsaw Frederic Chopin
18h 37m2 stops San Francisco Munich Franz Josef Strauss
United Airlines Logo
6:30 am - 5:47 pmWAW  Warsaw Frederic Chopin-ONT Ontario
20h 17m2 stops Frankfurt am Main San Francisco
$719United Airlines
Tue, Dec 1 - Tue, Dec 15
United Airlines Logo
6:53 pm - 10:30 pmONT  Ontario-WAW Warsaw Frederic Chopin
18h 37m2 stops San Francisco Munich Franz Josef Strauss
United Airlines Logo
6:30 am - 5:47 pmWAW  Warsaw Frederic Chopin-ONT Ontario
20h 17m2 stops Frankfurt am Main San Francisco
$719United Airlines
Tue, Feb 2 - Tue, Feb 16
Delta Logo
12:00 pm - 4:30 pmONT  Ontario-WAW Warsaw Frederic Chopin
19h 30m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
Delta Logo
6:05 am - 4:12 pmWAW  Warsaw Frederic Chopin-ONT Ontario
19h 07m2 stops Amsterdam Schiphol Salt Lake City
$720Delta
Wed, Jan 6 - Sun, Jan 10
United Airlines Logo
9:25 am - 12:40 pmONT  Ontario-WAW Warsaw Frederic Chopin
18h 15m2 stops San Francisco Munich Franz Josef Strauss
United Airlines Logo
9:20 am - 8:15 pmWAW  Warsaw Frederic Chopin-ONT Ontario
19h 55m2 stops Frankfurt am Main San Francisco
$722United Airlines
Thu, Nov 5 - Thu, Nov 19
United Airlines Logo
9:25 am - 12:40 pmONT  Ontario-WAW Warsaw Frederic Chopin
18h 15m2 stops San Francisco Munich Franz Josef Strauss
United Airlines Logo
6:30 am - 6:47 pmWAW  Warsaw Frederic Chopin-ONT Ontario
21h 17m2 stops Frankfurt am Main Chicago O'Hare Intl
$722United Airlines
Sun, Nov 1 - Sun, Nov 15
United Airlines Logo
9:25 am - 12:40 pmONT  Ontario-WAW Warsaw Frederic Chopin
18h 15m2 stops San Francisco Munich Franz Josef Strauss
United Airlines Logo
6:25 am - 8:15 pmWAW  Warsaw Frederic Chopin-ONT Ontario
22h 50m2 stops Frankfurt am Main San Francisco
$722United Airlines
Fri, Nov 6 - Fri, Nov 20
Multiple Airlines Logo
12:00 pm - 4:30 pmONT  Ontario-WAW Warsaw Frederic Chopin
19h 30m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
Multiple Airlines Logo
4:55 pm - 4:12 pmWAW  Warsaw Frederic Chopin-ONT Ontario
32h 17m2 stops Amsterdam Schiphol Salt Lake City
$723Multiple Airlines
Fri, Jan 22 - Sat, Jan 30

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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 2
ONT6:53 pmOntario
18h 37m
2 stops
WAW10:30 pmWarsaw Frederic Chopin
Feb 16
WAW6:30 amWarsaw Frederic Chopin
22h 50m
2 stops
ONT8:20 pmOntario
$719
United Airlines
Nov 5
ONT9:25 amOntario
18h 15m
2 stops
WAW12:40 pmWarsaw Frederic Chopin
Nov 19
WAW9:20 amWarsaw Frederic Chopin
19h 55m
2 stops
ONT8:15 pmOntario
$722
United Airlines
Oct 31
ONT9:25 amOntario
19h 15m
2 stops
WAW12:40 pmWarsaw Frederic Chopin
Nov 7
WAW9:20 amWarsaw Frederic Chopin
20h 31m
2 stops
ONT8:51 pmOntario
$725

Delta flights from Ontario to Warsaw Frederic Chopin Airport

Our best Delta deals on Ontario to Warsaw Frederic Chopin Airport flight tickets
Delta
Dec 13
ONT6:00 amOntario
25h 30m
2 stops
WAW4:30 pmWarsaw Frederic Chopin
Dec 25
WAW6:05 amWarsaw Frederic Chopin
26h 43m
2 stops
ONT11:48 pmOntario
$717
Delta
Jan 6
ONT12:00 pmOntario
19h 30m
2 stops
WAW4:30 pmWarsaw Frederic Chopin
Jan 10
WAW6:05 amWarsaw Frederic Chopin
19h 07m
2 stops
ONT4:12 pmOntario
$720
Delta
Dec 13
ONT6:00 amOntario
25h 30m
2 stops
WAW4:30 pmWarsaw Frederic Chopin
Dec 27
WAW1:05 pmWarsaw Frederic Chopin
43h 43m
2 stops
ONT11:48 pmOntario
$825

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 8, 2026.
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

Cheapest round-trip

OntarioWarsaw

ONT Ontario - WAW Warsaw Frederic Chopin

ONTWAW

Ontario

Wed 1/6

12:00 pm-4:30 pm

2 stops19h 30m

Warsaw Frederic Chopin

Tue 1/12

6:05 am-4:12 pm

2 stops19h 07m

$717

OntarioWarsaw

ONT Ontario - WAW Warsaw Frederic Chopin

ONTWAW

Ontario

Sun 12/13

6:00 am-4:30 pm

2 stops25h 30m

Warsaw Frederic Chopin

Fri 12/25

6:05 am-11:48 pm

2 stops26h 43m

$717

OntarioWarsaw

ONT Ontario - WAW Warsaw Frederic Chopin

ONTWAW

Ontario

Tue 2/2

6:53 pm-10:30 pm

2 stops18h 37m

Warsaw Frederic Chopin

Tue 2/16

6:30 am-8:20 pm

2 stops22h 50m

$719

OntarioWarsaw

ONT Ontario - WAW Warsaw Frederic Chopin

ONTWAW

Ontario

Tue 12/1

6:53 pm-10:30 pm

2 stops18h 37m

Warsaw Frederic Chopin

Tue 12/15

6:30 am-5:47 pm

2 stops20h 17m

$719

OntarioWarsaw

ONT Ontario - WAW Warsaw Frederic Chopin

ONTWAW

Ontario

Tue 2/2

6:53 pm-10:30 pm

2 stops18h 37m

Warsaw Frederic Chopin

Tue 2/16

6:30 am-5:47 pm

2 stops20h 17m

$719

OntarioWarsaw

ONT Ontario - WAW Warsaw Frederic Chopin

ONTWAW

Ontario

Wed 1/6

12:00 pm-4:30 pm

2 stops19h 30m

Warsaw Frederic Chopin

Sun 1/10

6:05 am-4:12 pm

2 stops19h 07m

$720
Quickest round-trip

OntarioWarsaw

ONT Ontario - WAW Warsaw Frederic Chopin

ONTWAW

Ontario

Thu 11/5

9:25 am-12:40 pm

2 stops18h 15m

Warsaw Frederic Chopin

Thu 11/19

9:20 am-8:15 pm

2 stops19h 55m

$722

OntarioWarsaw

ONT Ontario - WAW Warsaw Frederic Chopin

ONTWAW

Ontario

Sun 11/1

9:25 am-12:40 pm

2 stops18h 15m

Warsaw Frederic Chopin

Sun 11/15

6:30 am-6:47 pm

2 stops21h 17m

$722

OntarioWarsaw

ONT Ontario - WAW Warsaw Frederic Chopin

ONTWAW

Ontario

Fri 11/6

9:25 am-12:40 pm

2 stops18h 15m

Warsaw Frederic Chopin

Fri 11/20

6:25 am-8:15 pm

2 stops22h 50m

$722

OntarioWarsaw

ONT Ontario - WAW Warsaw Frederic Chopin

ONTWAW

Ontario

Fri 1/22

12:00 pm-4:30 pm

2 stops19h 30m

Warsaw Frederic Chopin

Sat 1/30

4:55 pm-4:12 pm

2 stops32h 17m

$723

Flights are sorted by cheapest round-trip flights 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 Friday when prices can be found for as low as $942. Flights from Ontario to Warsaw Frederic Chopin Airport on a Monday will generally be more expensive and average around $1,131. 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 afternoon when flights can be purchased for as low as $1,034. Flights in the evening are often more expensive with an average ticket price of $1,077.

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

Fastest flight time

16h 47m

Direct flights

None
The fastest flight from Ontario to Warsaw Frederic Chopin Airport takes 16h 47m
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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Frequently asked questions about flying from Ontario to Warsaw Frederic Chopin Airport

  • 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 47m.

  • 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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