How long is the flight from Ontario to Warsaw?

A quick flight from Ontario to Warsaw can take about 16h 42m. British Airways provides one of the quickest options available for as low as $497. 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.

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

One-way options have recently been found by users for as low as $345 on United Airlines. Other airlines that offer cheap prices include British Airways from $409 and Delta from $422 one-way.

What is the cheapest day to fly from Ontario to Warsaw?

Travelers seeking maximum savings on their Ontario to Warsaw flight should consider departing on Wednesday mornings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Warsaw ranges from 0.8 - 2.8 inches per month. July is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Warsaw when rainfall is around 0.8 in.

If weather is an important factor for your trip to Warsaw, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

What is the cheapest day to fly round-trip from Ontario to Warsaw?

Leaving on a Monday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 3% on the overall cost on flights from Ontario to Warsaw.

How far in advance should I book a flight from Ontario to Warsaw?

To save up to 15% on this flight, we recommend booking at least 60 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Ontario to Warsaw from $568 1-2 weeks out and tickets from $568 for flights departing within the next 72 hours.

What is the cheapest month to fly from Ontario to Warsaw?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, February can be a great choice for travel to Warsaw. Flights to Warsaw from Ontario in February are about $670 on average during February, but can be found for as low as $444.

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.

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.

$345+ Flights from Ontario to Warsaw

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Cheap flight deals from Ontario to Warsaw

Round-trip from	$497 (Booking.com)
One-way from	$345 (United Airlines)
Popular in	June
Cheapest in	February
Average price	$631

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 ($179 potential increase over avg. RT price).

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Cheapest flight prices on average. 4% potential price decrease ($27 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Find 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 August 28, 2025.

Tue 11/252:59 pmONT - WAW

2 stops18h 46mBritish Airways

Wed 12/38:50 amWAW - ONT

2 stops18h 27mBritish Airways

Deal found 8/28

$497

Thu 11/275:05 amONT - WAW

2 stops32h 25mUnited Airlines

Fri 12/52:20 pmWAW - ONT

2 stops36h 17mUnited Airlines

Deal found 8/28

$519

Sat 11/226:38 pmONT - WAW

2 stops34h 12mUnited Airlines

Wed 12/32:35 pmWAW - ONT

2 stops30h 42mUnited Airlines

Deal found 8/28

$523

Fri 11/286:00 amONT - WAW

2 stops21h 55mUnited Airlines

Thu 12/42:30 pmWAW - ONT

2 stops41h 19mUnited Airlines

Deal found 8/28

$538

Mon 12/2910:42 amONT - WAW

2 stops17h 13mUnited Airlines

Mon 1/122:35 pmWAW - ONT

2 stops17h 18mUnited Airlines

Deal found 8/28

$539

Sat 11/226:38 pmONT - WAW

2 stops36h 37mUnited Airlines

Mon 12/11:35 pmWAW - ONT

2 stops37h 02mUnited Airlines

Deal found 8/28

$540

Mon 10/201:53 pmONT - WAW

2 stops19h 47mUnited Airlines

Mon 11/32:35 pmWAW - ONT

2 stops17h 16mUnited Airlines

Deal found 8/28

$543

Sat 10/251:15 pmONT - WAW

2 stops20h 25mUnited Airlines

Mon 11/32:35 pmWAW - ONT

2 stops17h 16mUnited Airlines

Deal found 8/27

$544

Fri 10/1712:48 pmONT - WAW

2 stops20h 07mAmerican Airlines

Fri 10/248:30 amWAW - ONT

2 stops23h 12mAmerican Airlines

Deal found 8/28

$548

Sun 10/199:36 amONT - WAW

2 stops18h 59mUnited Airlines

Sun 11/25:05 amWAW - ONT

2 stops20h 29mUnited Airlines

Deal found 8/27

$554

Mon 11/241:40 pmONT - WAW

2 stops19h 10mUnited Airlines

Mon 12/81:35 pmWAW - ONT

2 stops18h 14mUnited Airlines

Deal found 8/26

$555

Fri 10/175:05 amONT - WAW

2 stops31h 55mUnited Airlines

Fri 10/312:20 pmWAW - ONT

2 stops40h 31mUnited Airlines

Deal found 8/28

$558

Best flights from Ontario to Warsaw
Discover carefully curated flight deals from Ontario to Warsaw that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 28, 2025.

Tue 1/275:03 pmONT - WAW

2 stops16h 42mBritish Airways

Tue 2/108:50 amWAW - ONT

2 stops18h 03mBritish Airways

Deal found 8/27

$497

Mon 11/245:05 amONT - WAW

2 stops32h 25mUnited Airlines

Fri 12/56:30 amWAW - ONT

2 stops38h 48mUnited Airlines

Deal found 8/28

$519

Tue 11/252:59 pmONT - WAW

2 stops18h 46mBritish Airways

Wed 12/38:50 amWAW - ONT

2 stops18h 27mBritish Airways

Deal found 8/28

$497

Wed 11/265:05 amONT - WAW

2 stops32h 25mUnited Airlines

Fri 12/56:30 amWAW - ONT

2 stops38h 48mUnited Airlines

Deal found 8/28

$519

Sat 1/245:03 pmONT - WAW

2 stops17h 02mBritish Airways

Sat 2/78:50 amWAW - ONT

2 stops18h 03mBritish Airways

Deal found 8/27

$503

Sat 11/226:38 pmONT - WAW

2 stops36h 37mUnited Airlines

Fri 12/56:30 amWAW - ONT

2 stops38h 48mUnited Airlines

Deal found 8/28

$519

Fri 11/286:00 amONT - WAW

2 stops21h 55mUnited Airlines

Sat 12/66:30 amWAW - ONT

2 stops20h 07mUnited Airlines

Deal found 8/28

$519

Mon 11/245:05 amONT - WAW

2 stops32h 25mUnited Airlines

Sat 12/62:35 pmWAW - ONT

2 stops30h 43mUnited Airlines

Deal found 8/28

$519

Sun 11/236:00 amONT - WAW

2 stops25h 15mUnited Airlines

Sat 12/66:30 amWAW - ONT

2 stops23h 12mUnited Airlines

Deal found 8/28

$519

Thu 11/277:00 amONT - WAW

2 stops20h 55mUnited Airlines

Sat 12/66:30 amWAW - ONT

2 stops20h 07mUnited Airlines

Deal found 8/28

$519

Sun 11/236:38 pmONT - WAW

2 stops18h 52mUnited Airlines

Fri 12/56:30 amWAW - ONT

2 stops38h 48mUnited Airlines

Deal found 8/28

$519

Tue 11/255:05 amONT - WAW

2 stops32h 25mUnited Airlines

Fri 12/56:30 amWAW - ONT

2 stops38h 48mUnited Airlines

Deal found 8/28

$519

Last-minute flights from Ontario to Warsaw
Discover last-minute flight deals from Ontario to Warsaw. Data last updated August 28, 2025 and is based on user searches.

Sun 8/315:10 amONT - WAW

2 stops31h 50mUnited Airlines

Sat 9/69:40 amWAW - ONT

2 stops44h 45mUnited Airlines

Deal found 8/28

$823

Wed 9/31:42 pmONT - WAW

2 stops19h 33mUnited Airlines

Wed 9/106:40 amWAW - ONT

2 stops23h 45mUnited Airlines

Deal found 8/26

$599

Sat 9/61:42 pmONT - WAW

2 stops19h 33mUnited Airlines

Tue 9/236:35 amWAW - ONT

2 stops23h 50mUnited Airlines

Deal found 8/27

$776

Sat 9/61:42 pmONT - WAW

2 stops19h 33mUnited Airlines

Wed 9/249:40 amWAW - ONT

2 stops19h 53mUnited Airlines

Deal found 8/27

$879

Tue 9/96:04 amONT - WAW

2 stops21h 26mUnited Airlines

Fri 9/266:50 amWAW - ONT

2 stops24h 40mUnited Airlines

Deal found 8/25

$609

Wed 9/101:42 pmONT - WAW

2 stops19h 33mUnited Airlines

Wed 10/82:20 pmWAW - ONT

2 stops17h 32mUnited Airlines

Deal found 8/27

$774

Wed 9/1010:56 pmONT - WAW

1 stop24h 19mLOT

Wed 10/812:25 pmWAW - ONT

1 stop18h 04mLOT

Deal found 8/27

$960

Sun 9/141:42 pmONT - WAW

2 stops19h 33mUnited Airlines

Tue 10/212:20 pmWAW - ONT

2 stops17h 32mUnited Airlines

Deal found 8/28

$658

Sun 9/141:42 pmONT - WAW

2 stops19h 33mUnited Airlines

Wed 10/159:40 amWAW - ONT

2 stops20h 44mUnited Airlines

Deal found 8/28

$878

Tue 9/161:42 pmONT - WAW

2 stops19h 58mUnited Airlines

Tue 9/309:40 amWAW - ONT

2 stops22h 12mUnited Airlines

Deal found 8/26

$894

Fri 9/191:42 pmONT - WAW

2 stops38h 53mUnited Airlines

Wed 10/229:40 amWAW - ONT

2 stops22h 12mUnited Airlines

Deal found 8/28

$944

One-way flights from Ontario to Warsaw
Search for one-way flight options from Ontario to Warsaw. Find affordable one-way fares based on user searches. Data last updated August 28, 2025.

Sun 11/236:05 amONT - WAW

2 stops25h 10mUnited Airlines

Deal found 8/25

$345

Fri 10/175:05 amONT - WAW

2 stops31h 55mUnited Airlines

Deal found 8/25

$395

Tue 10/74:49 pmONT - WAW

2 stops19h 26mBritish Airways

Deal found 8/27

$409

Mon 10/1311:36 amONT - WAW

2 stops19h 04mDelta

Deal found 8/28

$422

Thu 12/42:56 pmONT - WAW

2 stops17h 29mBritish Airways

Deal found 8/27

$423

Thu 9/117:00 amONT - WAW

2 stops25h 15mUnited Airlines

Deal found 8/28

$424

Tue 10/71:53 pmONT - WAW

2 stops23h 07mUnited Airlines

Deal found 8/26

$426

Sat 10/114:49 pmONT - WAW

2 stops19h 56mBritish Airways

Deal found 8/27

$427

Thu 10/99:36 amONT - WAW

2 stops27h 24mUnited Airlines

Deal found 8/26

$429

Tue 10/149:36 amONT - WAW

2 stops18h 59mUnited Airlines

Deal found 8/27

$430

Wed 10/85:05 amONT - WAW

3 stops28h 10mUnited Airlines

Deal found 8/26

$431

Mon 10/66:36 pmONT - WAW

2 stops33h 59mUnited Airlines

Deal found 8/27

$442

Fly from

Fly to

Route

Depart

Return

Price

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Tue 1/27

5:03 pm-6:45 pm

2 stops16h 42m

Warsaw Frederic Chopin

Tue 2/10

8:50 am-5:53 pm

2 stops18h 03m

$497

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Tue 11/25

2:59 pm-6:45 pm

2 stops18h 46m

Warsaw Frederic Chopin

Wed 12/3

8:50 am-6:17 pm

2 stops18h 27m

$497

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Sat 1/24

5:03 pm-7:05 pm

2 stops17h 02m

Warsaw Frederic Chopin

Sat 2/7

8:50 am-5:53 pm

2 stops18h 03m

$503

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Mon 11/24

5:05 am-10:30 pm

2 stops32h 25m

Warsaw Frederic Chopin

Fri 12/5

6:30 am-12:18 pm

2 stops38h 48m

$519

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Wed 11/26

5:05 am-10:30 pm

2 stops32h 25m

Warsaw Frederic Chopin

Fri 12/5

6:30 am-12:18 pm

2 stops38h 48m

$519

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Sat 11/22

6:38 pm-4:15 pm

2 stops36h 37m

Warsaw Frederic Chopin

Fri 12/5

6:30 am-12:18 pm

2 stops38h 48m

$519

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Fri 11/28

6:00 am-12:55 pm

2 stops21h 55m

Warsaw Frederic Chopin

Sat 12/6

6:30 am-5:37 pm

2 stops20h 07m

$519

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Mon 11/24

5:05 am-10:30 pm

2 stops32h 25m

Warsaw Frederic Chopin

Sat 12/6

2:35 pm-12:18 pm

2 stops30h 43m

$519

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Sun 11/23

6:00 am-4:15 pm

2 stops25h 15m

Warsaw Frederic Chopin

Sat 12/6

6:30 am-8:42 pm

2 stops23h 12m

$519

OntarioWarsaw

ONT - WAW

ONTWAW

Ontario

Thu 11/27

7:00 am-12:55 pm

2 stops20h 55m

Warsaw Frederic Chopin

Sat 12/6

6:30 am-5:37 pm

2 stops20h 07m

$519

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/25

Showing 1-10 of 24 results

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, January is the cheapest month in which you can book a flight from Ontario to Warsaw (average of $576). Flying from Ontario to Warsaw in June is currently the most expensive (average of $1,021). 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 WAW?

Unlike in the morning, when flights are generally more expensive, you can save up to 12% on flights from Ontario to Warsaw by exploring options for tickets at noon.

Related info for your journey

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 42m. British Airways provides one of the quickest options available for as low as $497. 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.
What are the cheapest airlines to fly from Ontario to Warsaw one-way?
One-way options have recently been found by users for as low as $345 on United Airlines. Other airlines that offer cheap prices include British Airways from $409 and Delta from $422 one-way.
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, January is the cheapest month in which you can book a flight from Ontario to Warsaw (average of $576). Flying from Ontario to Warsaw in June is currently the most expensive (average of $1,021). 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

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$345+ 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 11/23. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Warsaw with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Ontario to Warsaw

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ontario to Warsaw

Cheapest flights from Ontario to WarsawExplore 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 August 28, 2025.

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 August 28, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ontario to Warsaw that are best for you.

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.

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?

What is the cheapest time of day to fly from ONT to WAW?

Find hourly flight availability from Ontario to Warsaw. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 28, 2025.

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?

How long is the flight from Ontario to Warsaw?

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

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

How can I find direct flights from Ontario to Warsaw?

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

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

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 Warsaw

See prices for flight routes from nearby airports that may be better suited for you.

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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 August 28, 2025.