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Tallinn

$416+ 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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — TLL
nov. 28 — déc. 51
ven. 11/28
ven. 12/5
1 adult, Economy
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Find 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 octobre 29, 2025.

This United Airlines deal was found by Cheapflights users on 10/28. 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.
mer. 12/101:34 pmONT - TLL
2 stops17h 36mUnited Airlines
mer. 12/176:00 amTLL - ONT
2 stops21h 35mUnited Airlines
Deal found 10/28$661
This United Airlines deal was found by Cheapflights users on 10/28. 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.
mer. 12/3111:59 pmONT - TLL
2 stops26h 51mUnited Airlines
mer. 1/71:55 pmTLL - ONT
2 stops41h 03mUnited Airlines
Deal found 10/28$744
This British Airways deal was found by Cheapflights users on 10/28. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 12/314:47 pmONT - TLL
2 stops19h 58mBritish Airways
mer. 1/75:00 pmTLL - ONT
2 stops55h 18mBritish Airways
Deal found 10/28$940
This United Airlines deal was found by Cheapflights users on 10/28. 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.
mer. 12/175:05 amONT - TLL
2 stops26h 05mUnited Airlines
ven. 12/266:05 amTLL - ONT
2 stops50h 20mUnited Airlines
Deal found 10/28$1,140
This United Airlines deal was found by Cheapflights users on 10/28. 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.
mer. 12/175:05 amONT - TLL
2 stops32h 45mUnited Airlines
dim. 12/285:55 pmTLL - ONT
2 stops38h 30mUnited Airlines
Deal found 10/28$1,241
This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 12/2411:59 pmONT - TLL
2 stops26h 51mUnited Airlines
dim. 1/41:55 pmTLL - ONT
2 stops42h 30mUnited Airlines
Deal found 10/27$1,340
This United Airlines deal was found by Cheapflights users on 10/28. 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.
mer. 12/171:34 pmONT - TLL
2 stops24h 16mUnited Airlines
sam. 12/276:15 amTLL - ONT
2 stops26h 10mUnited Airlines
Deal found 10/28$1,414
This United Airlines deal was found by Cheapflights users on 10/26. 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.
mar. 12/231:40 pmONT - TLL
2 stops48h 10mUnited Airlines
dim. 1/41:55 pmTLL - ONT
2 stops42h 30mUnited Airlines
Deal found 10/26$1,530
This Delta deal was found by Cheapflights users on 10/28. 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.
mar. 12/306:38 amONT - TLL
2 stops27h 27mDelta
mar. 1/67:25 amTLL - ONT
2 stops25h 04mDelta
Deal found 10/28$1,703
This United Airlines deal was found by Cheapflights users on 10/28. 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.
mer. 12/175:05 amONT - TLL
2 stops32h 45mUnited Airlines
sam. 1/35:55 pmTLL - ONT
2 stops38h 30mUnited Airlines
Deal found 10/28$1,813

Cheap 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 octobre 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$593
(United Airlines)

One-way from

$416
(United Airlines)

Popular in

June

Cheapest in

November

Average price

$684
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. 15% potential increase in price ($122 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 octobre 29, 2025.
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

mer. 3/4

5:00 am-11:55 pm

2 stops32h 55m

Tallinn

dim. 3/8

6:15 am-9:37 pm

2 stops25h 22m

$593

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

mer. 12/31

11:59 pm-12:50 pm

2 stops26h 51m

Tallinn

mer. 1/7

1:55 pm-8:58 pm

2 stops41h 03m

$744

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

mer. 12/31

4:47 pm-10:45 pm

2 stops19h 58m

Tallinn

mer. 1/7

5:00 pm-2:18 pm

2 stops55h 18m

$940

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

mer. 12/17

5:05 am-5:10 pm

2 stops26h 05m

Tallinn

ven. 12/26

6:05 am-10:25 pm

2 stops50h 20m

$1,140

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

mer. 12/17

5:05 am-11:50 pm

2 stops32h 45m

Tallinn

dim. 12/28

5:55 pm-10:25 pm

2 stops38h 30m

$1,241

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

mer. 12/24

11:59 pm-12:50 pm

2 stops26h 51m

Tallinn

dim. 1/4

1:55 pm-10:25 pm

2 stops42h 30m

$1,340

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

mer. 12/17

1:34 pm-11:50 pm

2 stops24h 16m

Tallinn

sam. 12/27

6:15 am-10:25 pm

2 stops26h 10m

$1,414

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

mar. 12/23

1:40 pm-11:50 pm

2 stops48h 10m

Tallinn

dim. 1/4

1:55 pm-10:25 pm

2 stops42h 30m

$1,530

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

mar. 12/30

6:38 am-8:05 pm

2 stops27h 27m

Tallinn

mar. 1/6

7:25 am-10:29 pm

2 stops25h 04m

$1,703

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

sam. 12/6

1:50 pm-11:50 pm

2 stops24h 00m

$416

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

  • 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 $707). 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 $593, United Airlines can have you in Tallinn from Ontario in 32h 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 $707). 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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