HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Tallinn

$371+ Cheap flights from Ontario (ONT) to Tallinn (TLL)

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 6/7. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — TLL
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Tallinn with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to Tallinn

Cheapest flights from Ontario to Tallinn
Explore the most affordable flight options available from Ontario to Tallinn. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

This United Airlines deal was found by Cheapflights users on 1/26. 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 1/291:24 pm
ONT
-
TLL
2 stops48h 16m
United Airlines
Mon 2/21:40 pm
TLL
-
ONT
2 stops19h 13m
United Airlines
Deal found 1/26$652
This United Airlines deal was found by Cheapflights users on 1/26. 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 3/275:15 am
ONT
-
TLL
2 stops26h 45m
United Airlines
Fri 4/32:00 pm
TLL
-
ONT
2 stops32h 14m
United Airlines
Deal found 1/26$790
This American Airlines deal was found by Cheapflights users on 1/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/212:39 pm
ONT
-
TLL
2 stops38h 36m
American Airlines
Mon 3/93:40 pm
TLL
-
ONT
2 stops40h 09m
American Airlines
Deal found 1/25$891
This United Airlines deal was found by Cheapflights users on 1/25. 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 1/301:53 pm
ONT
-
TLL
2 stops47h 57m
United Airlines
Wed 2/41:55 pm
TLL
-
ONT
2 stops55h 23m
United Airlines
Deal found 1/25$979
This oojo deal was found by Cheapflights users on 1/27. 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.
Mon 6/1511:25 pm
ONT
-
TLL
2 stops24h 55m
Turkish Airlines
Mon 8/107:35 pm
TLL
-
ONT
2 stops36h 34m
Turkish Airlines
Deal found 1/27$2,742
This oojo deal was found by Cheapflights users on 1/25. 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.
Fri 5/2211:25 pm
ONT
-
TLL
2 stops24h 55m
Turkish Airlines
Sun 5/3111:15 am
TLL
-
ONT
2 stops44h 54m
Turkish Airlines
Deal found 1/25$3,247
This Delta deal was found by Cheapflights users on 1/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/162:00 pm
ONT
-
TLL
2 stops19h 55m
Delta
Mon 8/107:30 am
TLL
-
ONT
2 stops24h 26m
Delta
Deal found 1/27$4,063
This Delta deal was found by Cheapflights users on 1/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/147:00 am
ONT
-
TLL
2 stops20h 15m
Delta
Mon 8/107:30 am
TLL
-
ONT
2 stops25h 10m
Delta
Deal found 1/27$4,418

Find flight deals from Ontario to Tallinn

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Tallinn (TLL). 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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$790
(United Airlines)

One-way from

$371
(Finnair)

Popular in

December

Cheapest in

January

Average price

$518
Provider with most accurate pricing for Ontario-Tallinn flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Tallinn flights.
Search Deals
From Ontario to Tallinn
Search Deals
One-way flight from Ontario to Tallinn
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Tallinn 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 January 27, 2026.
Use the filters below to find and compare flights from Ontario to Tallinn that are best for you.

Fly from

Ontario

Fly to

Tallinn

Route

Depart

Return

Price

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Fri 3/27

5:15 am-5:00 pm

2 stops26h 45m

Tallinn

Fri 4/3

2:00 pm-12:14 pm

2 stops32h 14m

$790

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Sat 2/21

2:39 pm-3:15 pm

2 stops38h 36m

Tallinn

Mon 3/9

3:40 pm-10:49 pm

2 stops40h 09m

$891

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Mon 6/15

11:25 pm-10:20 am

2 stops24h 55m

Tallinn

Mon 8/10

7:35 pm-10:09 pm

2 stops36h 34m

$2,742

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Fri 5/22

11:25 pm-10:20 am

2 stops24h 55m

Tallinn

Sun 5/31

11:15 am-10:09 pm

2 stops44h 54m

$3,247

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Tue 6/16

2:00 pm-7:55 pm

2 stops19h 55m

Tallinn

Mon 8/10

7:30 am-9:56 pm

2 stops24h 26m

$4,063

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Sun 6/14

7:00 am-1:15 pm

2 stops20h 15m

Tallinn

Mon 8/10

7:30 am-10:40 pm

2 stops25h 10m

$4,418

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Sun 6/7

11:59 pm-12:25 pm

2 stops26h 26m

$371

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Wed 3/4

1:45 pm-5:10 pm

2 stops17h 25m

$414

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Sun 3/8

5:15 am-11:55 pm

2 stops33h 40m

$414

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Sat 3/7

11:59 pm-12:55 pm

2 stops26h 56m

$414

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 17 results
1
2

Compare providers for flights from Ontario to Tallinn

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Tallinn in January.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Tallinn flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Tallinn flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Tallinn flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Tallinn flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Tallinn flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Tallinn

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

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

Currently, September is the cheapest month in which you can book a flight from Ontario to Tallinn (average of $419). Flying from Ontario to Tallinn in June is currently the most expensive (average of $686). 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 Tallinn. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to Tallinn?

    For as low as $2,742, United Airlines can have you in Tallinn from Ontario in 24h 55m. Ontario and Tallinn are separated by a distance of 5626 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Ontario to Tallinn (average of $419). Flying from Ontario to Tallinn in June is currently the most expensive (average of $686). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
Cookie settings©2026 Cheapflights