$409 Find Cheap Flights from Ontario to Poland - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Poland departing on 10/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Book Cheap Ontario to Poland Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Poland that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Poland

Tue, Aug 11 - Fri, Aug 21
United Airlines Logo
6:08 am - 12:40 pm
ONT
-
KRK
21h 32m
2 stops
United Airlines Logo
6:10 am - 6:11 pm
KRK
-
ONT
21h 01m
2 stops
$710United Airlines
Sat, Aug 15 - Sun, Nov 1
United Airlines Logo
1:18 pm - 12:40 pm
ONT
-
KRK
38h 22m
2 stops
United Airlines Logo
6:10 am - 10:50 pm
KRK
-
ONT
24h 40m
2 stops
$713United Airlines
Thu, Aug 13 - Thu, Aug 20
Lufthansa Logo
6:08 am - 12:40 pm
ONT
-
KRK
21h 32m
2 stops
Lufthansa Logo
11:10 am - 9:59 pm
KRK
-
ONT
19h 49m
2 stops
$718Lufthansa
Sun, Aug 16 - Sun, Aug 23
United Airlines Logo
9:01 am - 1:55 pm
ONT
-
POZ
19h 54m
2 stops
United Airlines Logo
10:40 am - 8:53 pm
POZ
-
ONT
19h 13m
2 stops
$721United Airlines
Mon, Aug 17 - Mon, Aug 24
Delta Logo
1:06 pm - 4:25 pm
ONT
-
WAW
18h 19m
2 stops
Delta Logo
6:05 am - 4:24 pm
WAW
-
ONT
19h 19m
2 stops
$731Delta
Mon, Oct 5 - Fri, Oct 30
Delta Logo
1:04 pm - 1:35 pm
ONT
-
KRK
15h 31m
2 stops
Delta Logo
6:00 am - 10:43 pm
KRK
-
ONT
24h 43m
2 stops
$773Delta
Wed, Dec 30 - Wed, Jan 13
British Airways Logo
2:42 pm - 6:50 pm
ONT
-
WAW
19h 08m
2 stops
British Airways Logo
8:50 am - 6:45 pm
WAW
-
ONT
18h 55m
2 stops
$785British Airways
Sun, Nov 22 - Thu, Dec 17
Lufthansa Logo
4:04 pm - 6:20 pm
ONT
-
KRK
17h 16m
2 stops
Lufthansa Logo
10:10 am - 9:21 pm
KRK
-
ONT
20h 11m
2 stops
$802Lufthansa
Sun, Aug 9 - Tue, Aug 25
KLM Logo
10:00 pm - 11:10 pm
ONT
-
WRO
40h 10m
2 stops
KLM Logo
2:00 pm - 10:42 am
WRO
-
ONT
53h 42m
2 stops
$851KLM
Tue, Jul 21 - Thu, Aug 6
KLM Logo
7:05 am - 1:30 pm
ONT
-
WRO
21h 25m
2 stops
KLM Logo
6:00 am - 10:45 pm
WRO
-
ONT
25h 45m
2 stops
$997KLM
Booking Insights

KAYAK's insights & trends for Ontario to Poland flights

Get data-powered insights and trends into flights from Ontario to Poland to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Ontario to Poland?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Ontario to Poland were found on United Airlines ($713) and British Airways ($809).

Good to know

Cheapest flight$409
Flight from Ontario to Warsaw

FAQs - booking Poland flights

  • How does KAYAK find such low prices on flights from Ontario to Poland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Poland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Poland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario to Poland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Poland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Ontario to Poland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Poland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Ontario to Poland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Ontario to Poland

 
Need help choosing which airline to fly with from Ontario to Poland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9927 reviews
6.7Food
7.3Comfort
7.1Entertainment
8.1Crew
7.7Boarding
Airline reviews

Great staff. Clean plane, but we were delayed for more than an hour due to maintenance issues and had to board another plane.

8.0 ExcellentNico, Jun 2026
LAX - HNL
Read more United Airlines reviews

Great staff. Clean plane, but we were delayed for more than an hour due to maintenance issues and had to board another plane.

I was very disappointed with my experience at the United Airlines baggage check. The representative was rude and unhelpful. I was required to remove approximately 1.5 pounds from my two checked bags, even though it was a very small amount over the limit. The interaction was unnecessarily unpleasant, and I expected much better customer service. I hope United will review this incident and provide additional customer service training to its staff.

No extra snacks were available. Meals quality is terrible. Crew was not friendly.

Lost one piece of luggage even though I checked in 2.5 hours before the flight

The boarding process on the departure from LA was rather slow even though I was in Group 1. For first class, I was not expecting to have to pay for Wi-fi but I did and then the wi-fi was spotty. The entree was surprisingly good and so that was a pleasant surprise. However, once I got to Houston, it was terrible. Unfortunately there was bad weather but the constant gate changes for my connecting flight was difficult to manage due to having to navigate back and forth between different terminals.

I was promised by United Airline (operated by ANA) that I will be seated together with my kids as I am the only adult flying with two minors. We did not get seats together in our 11 hours flight from LA to Tokyo. When asked at the gate, ANA representative said United Airline should have informed them that there is a parent flying with two minors. He said they can’t do anything in the system as the flight is full. He ask me to ask passengers next to me and the kids if they are willing to change seats. This is ridiculous! However, I went in the flight and asked other passages but no one willing to change seats. 11 hours and we were seating separately. I was very disappointed with this. It made things super inconvenient for me.

Service was professional and quick. Premium economy seat was comfortable given the class

It was perfect! United Airlines staff was extremely caring, super friendly and professional

The staff was extremely helpful and friendly at all times! They went above and beyond to get us into an earlier flight in San Diego to make our connection in SFO possible, because our original flight did actually not make it! I did so much appreciate the UA team and how they made this possible. We also didn’t have seats together on the long flight to Singapore, but they found us seats together last moment with no additional cost! Nobody sat next to us, so that we were able to sleep! Thanks to UA for improving their service and Underpricer for booking this trip! Please be careful: 1,5 hrs for transfer in San Francisco might not be enough time in the future

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Everything you need to know for your flight from Ontario to Poland

Information on your arrival and departure airports