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Warsaw

$239+ Cheap flights from Ontario (ONT) to Warsaw

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — WAW
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
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Cheap flight deals from Ontario to Warsaw

Cheapest flights from Ontario to Warsaw
Explore the most affordable flight options available from Ontario to Warsaw. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 4, 2026.

This oojo deal was found by Cheapflights users on 2/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/255:02 pm
ONT
-
WAW
2 stops16h 48m
British Airways
Wed 3/118:50 am
WAW
-
ONT
2 stops21h 40m
British Airways
Deal found 2/4$475
This oojo deal was found by Cheapflights users on 2/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/52:39 pm
ONT
-
WAW
2 stops17h 46m
British Airways
Thu 3/128:50 am
WAW
-
ONT
2 stops21h 40m
British Airways
Deal found 2/3$479
This oojo deal was found by Cheapflights users on 2/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/21:10 pm
ONT
-
WAW
2 stops22h 55m
British Airways
Sat 8/228:00 am
WAW
-
ONT
2 stops23h 14m
British Airways
Deal found 2/3$491
This United Airlines deal was found by Cheapflights users on 2/3. 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.
Wed 2/46:00 am
ONT
-
WAW
2 stops21h 55m
United Airlines
Wed 2/186:30 am
WAW
-
ONT
2 stops39h 08m
United Airlines
Deal found 2/3$502
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Sun 3/156:00 am
ONT
-
WAW
2 stops26h 30m
United Airlines
Wed 3/256:30 am
WAW
-
ONT
2 stops23h 48m
United Airlines
Deal found 2/2$503
This United Airlines deal was found by Cheapflights users on 2/3. 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.
Mon 3/166:37 pm
ONT
-
WAW
2 stops19h 53m
United Airlines
Mon 3/236:30 am
WAW
-
ONT
2 stops23h 48m
United Airlines
Deal found 2/3$506
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Mon 3/231:50 pm
ONT
-
WAW
2 stops24h 40m
United Airlines
Mon 3/306:50 am
WAW
-
ONT
2 stops24h 36m
United Airlines
Deal found 2/2$507
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Thu 2/56:00 am
ONT
-
WAW
2 stops25h 30m
United Airlines
Mon 2/96:30 am
WAW
-
ONT
2 stops25h 23m
United Airlines
Deal found 2/2$509
This United Airlines deal was found by Cheapflights users on 2/3. 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.
Wed 4/1511:05 am
ONT
-
WAW
2 stops17h 30m
United Airlines
Wed 4/299:40 am
WAW
-
ONT
2 stops22h 05m
United Airlines
Deal found 2/3$514
This United Airlines deal was found by Cheapflights users on 2/2. 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.
Fri 3/66:15 am
ONT
-
WAW
2 stops22h 35m
United Airlines
Fri 3/209:20 am
WAW
-
ONT
2 stops34h 58m
United Airlines
Deal found 2/2$518

Find flight deals from Ontario to Warsaw

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Warsaw (WA1). 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 February 4, 2026.

Round-trip from

$475
(oojo)

One-way from

$239
(Orbitz)

Popular in

June

Cheapest in

November

Average price

$551
From Ontario to Warsaw
Search Deals
One-way flight from Ontario to Warsaw
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($181 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Warsaw 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 February 4, 2026.
Use the filters below to find and compare flights from Ontario to Warsaw that are best for you.

Fly from

Ontario

Fly to

Warsaw

Route

Depart

Return

Price

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Wed 2/25

5:02 pm-6:50 pm

2 stops16h 48m

Warsaw Frederic Chopin

Wed 3/11

8:50 am-10:30 pm

2 stops21h 40m

$475

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Sun 3/15

6:00 am-4:30 pm

2 stops26h 30m

Warsaw Frederic Chopin

Wed 3/25

6:30 am-10:18 pm

2 stops23h 48m

$503

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Wed 3/25

1:50 pm-4:30 pm

2 stops18h 40m

Warsaw Frederic Chopin

Wed 4/8

9:40 am-10:26 pm

2 stops21h 46m

$503

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Sun 8/2

7:00 am-5:15 pm

2 stops25h 15m

Warsaw Frederic Chopin

Sat 8/22

6:35 am-11:06 pm

2 stops25h 31m

$506

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Mon 3/16

6:37 pm-10:30 pm

2 stops19h 53m

Warsaw Frederic Chopin

Mon 3/23

6:30 am-10:18 pm

2 stops23h 48m

$506

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Mon 3/23

1:50 pm-10:30 pm

2 stops24h 40m

Warsaw Frederic Chopin

Mon 3/30

6:50 am-10:26 pm

2 stops24h 36m

$507

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Sat 3/28

11:59 pm-5:15 pm

2 stops32h 16m

Warsaw Frederic Chopin

Sun 4/5

6:40 am-9:50 pm

2 stops24h 10m

$507

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Wed 4/15

11:05 am-1:35 pm

2 stops17h 30m

Warsaw Frederic Chopin

Wed 4/29

9:40 am-10:45 pm

2 stops22h 05m

$514

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Tue 5/5

10:59 am-5:25 pm

2 stops21h 26m

Warsaw Frederic Chopin

Tue 5/19

8:45 am-10:35 pm

2 stops22h 50m

$518

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Tue 5/5

10:59 am-5:25 pm

2 stops21h 26m

Warsaw Frederic Chopin

Tue 5/26

8:45 am-11:59 pm

2 stops24h 14m

$519

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/4

Showing 1-10 of 23 results
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Best time to book a flight from Ontario to Warsaw

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

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

Currently, October is the cheapest month in which you can book a flight from Ontario to Warsaw (average of $435). Flying from Ontario to Warsaw in June is currently the most expensive (average of $698). 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.

Related info for your journey

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

    If you book a flight to Warsaw from Ontario, you will be flying from Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario. There are 0 flights from Ontario to Warsaw per day from 0 different airlines.

  • How long is the flight from Ontario to Warsaw?

    A quick flight from Ontario to Warsaw can take about 16h 48m. British Airways provides one of the quickest options available for as low as $475. Ontario and Warsaw are separated by a distance of 5971 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Ontario to Warsaw (average of $435). Flying from Ontario to Warsaw in June is currently the most expensive (average of $698). 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

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