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Tallinn

$605+ Cheap flights from Ontario (ONT) to Tallinn (TLL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — TLL
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
1 adult, Economy
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1. Tell us where you want to go

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2. Select your favorite providers

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3. Compare prices and book

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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 March 10, 2026.

This United Airlines deal was found by Cheapflights users on 3/5. 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.
Sat 5/91:40 pm
ONT
-
TLL
2 stops48h 55m
United Airlines
Tue 5/191:50 pm
TLL
-
ONT
2 stops29h 51m
United Airlines
Deal found 3/5$605
This United Airlines deal was found by Cheapflights users on 3/8. 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 12/76:00 am
ONT
-
TLL
2 stops31h 50m
United Airlines
Fri 12/116:15 am
TLL
-
ONT
2 stops26h 51m
United Airlines
Deal found 3/8$609
This United Airlines deal was found by Cheapflights users on 3/6. 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 4/51:34 pm
ONT
-
TLL
2 stops49h 01m
United Airlines
Wed 9/301:50 pm
TLL
-
ONT
2 stops42h 36m
United Airlines
Deal found 3/6$625
This United Airlines deal was found by Cheapflights users on 3/9. 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 5/37:00 am
ONT
-
TLL
2 stops20h 05m
United Airlines
Wed 5/206:10 am
TLL
-
ONT
2 stops26h 25m
United Airlines
Deal found 3/9$655
This United Airlines deal was found by Cheapflights users on 3/8. 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 4/51:34 pm
ONT
-
TLL
2 stops49h 01m
United Airlines
Mon 9/76:10 am
TLL
-
ONT
2 stops22h 09m
United Airlines
Deal found 3/8$663
This United Airlines deal was found by Cheapflights users on 3/9. 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 4/67:00 am
ONT
-
TLL
2 stops20h 05m
United Airlines
Mon 9/71:50 pm
TLL
-
ONT
2 stops42h 09m
United Airlines
Deal found 3/9$675
This United Airlines deal was found by Cheapflights users on 3/10. 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 9/61:18 pm
ONT
-
TLL
2 stops17h 52m
United Airlines
Wed 9/96:10 am
TLL
-
ONT
2 stops22h 09m
United Airlines
Deal found 3/10$682
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Tue 7/76:30 am
ONT
-
TLL
2 stops20h 35m
United Airlines
Wed 9/96:10 am
TLL
-
ONT
2 stops22h 01m
United Airlines
Deal found 3/6$740
This United Airlines deal was found by Cheapflights users on 3/8. 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 3/2311:59 pm
ONT
-
TLL
2 stops28h 11m
United Airlines
Sun 4/56:10 am
TLL
-
ONT
2 stops26h 21m
United Airlines
Deal found 3/8$754
This United Airlines deal was found by Cheapflights users on 3/7. 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 11/97:00 am
ONT
-
TLL
2 stops24h 10m
United Airlines
Fri 11/206:15 am
TLL
-
ONT
2 stops25h 06m
United Airlines
Deal found 3/7$774
This United Airlines deal was found by Cheapflights users on 3/10. 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 6/175:00 am
ONT
-
TLL
2 stops33h 15m
United Airlines
Thu 7/305:55 am
TLL
-
ONT
2 stops26h 51m
United Airlines
Deal found 3/10$1,128

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 March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$605
(United Airlines)
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

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 March 10, 2026.
Use the filters below to find and compare flights from Ontario to Tallinn that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Sat 5/9

1:40 pm-12:35 am

2 stops48h 55m

Tallinn

Tue 5/19

1:50 pm-9:41 am

2 stops29h 51m

$605

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Mon 8/17

5:45 am-1:05 pm

2 stops21h 20m

Tallinn

Tue 9/29

6:10 am-5:47 pm

2 stops21h 37m

$605

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Sun 4/5

1:34 pm-12:35 am

2 stops49h 01m

Tallinn

Wed 9/30

1:50 pm-10:26 pm

2 stops42h 36m

$625

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Sun 4/5

5:10 am-12:35 am

2 stops33h 25m

Tallinn

Mon 9/7

1:50 pm-9:59 pm

2 stops42h 09m

$625

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Mon 4/6

1:34 pm-5:15 pm

2 stops41h 41m

Tallinn

Mon 9/7

1:50 pm-9:59 pm

2 stops42h 09m

$625

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Sat 4/4

1:34 pm-12:35 am

2 stops49h 01m

Tallinn

Mon 9/7

1:50 pm-12:12 pm

2 stops56h 22m

$625

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Sun 5/3

7:00 am-1:05 pm

2 stops20h 05m

Tallinn

Wed 5/20

6:10 am-10:35 pm

2 stops26h 25m

$655

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Sun 5/3

7:00 am-1:05 pm

2 stops20h 05m

Tallinn

Tue 5/19

6:10 am-5:52 pm

2 stops21h 42m

$655

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Sun 5/3

7:00 am-1:05 pm

2 stops20h 05m

Tallinn

Fri 5/15

6:10 am-10:59 pm

2 stops26h 49m

$655
Quickest round-trip

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Sun 9/6

1:18 pm-5:10 pm

2 stops17h 52m

Tallinn

Wed 9/9

6:10 am-6:19 pm

2 stops22h 09m

$682

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 11 resultsSorted by cheapest first
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 March.
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 $412). Flying from Ontario to Tallinn in June is currently the most expensive (average of $683). 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 $605, United Airlines can have you in Tallinn from Ontario in 48h 55m. Ontario and Tallinn are separated by a distance of 5626 mi.

  • 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 $412). Flying from Ontario to Tallinn in June is currently the most expensive (average of $683). 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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