HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Tallinn

$523+ 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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — TLL
Aug 25 — Sep 11
Tue 8/25
Tue 9/1
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 July 26, 2026.

This United Airlines deal was found by Cheapflights users on 7/24. 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 12/261:18 pm
ONT
-
TLL
2 stops49h 22m
United Airlines
Fri 1/81:35 pm
TLL
-
ONT
2 stops40h 45m
United Airlines
Deal found 7/24$750
This United Airlines deal was found by Cheapflights users on 7/24. 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 12/266:27 pm
ONT
-
TLL
2 stops44h 13m
United Airlines
Sat 1/95:55 pm
TLL
-
ONT
2 stops33h 52m
United Airlines
Deal found 7/24$751
This United Airlines deal was found by Cheapflights users on 7/24. 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 12/316:00 am
ONT
-
TLL
2 stops32h 40m
United Airlines
Fri 1/81:35 pm
TLL
-
ONT
2 stops40h 45m
United Airlines
Deal found 7/24$754
This United Airlines deal was found by Cheapflights users on 7/24. 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 12/315:00 am
ONT
-
TLL
2 stops33h 40m
United Airlines
Sat 1/95:55 pm
TLL
-
ONT
2 stops33h 52m
United Airlines
Deal found 7/24$755
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Tue 8/251:18 pm
ONT
-
TLL
2 stops17h 57m
United Airlines
Wed 9/96:10 am
TLL
-
ONT
3 stops23h 51m
United Airlines
Deal found 7/25$758
This United Airlines deal was found by Cheapflights users on 7/24. 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 12/266:27 pm
ONT
-
TLL
2 stops44h 13m
United Airlines
Thu 1/76:35 am
TLL
-
ONT
2 stops21h 12m
United Airlines
Deal found 7/24$759
This United Airlines deal was found by Cheapflights users on 7/21. 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 11/155:00 am
ONT
-
TLL
2 stops33h 40m
United Airlines
Thu 11/196:35 am
TLL
-
ONT
2 stops24h 21m
United Airlines
Deal found 7/21$762
This United Airlines deal was found by Cheapflights users on 7/21. 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 7/254:20 pm
ONT
-
TLL
2 stops46h 15m
United Airlines
Sat 8/226:10 am
TLL
-
ONT
2 stops22h 02m
United Airlines
Deal found 7/21$787
This United Airlines deal was found by Cheapflights users on 7/24. 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 9/207:00 am
ONT
-
TLL
2 stops20h 05m
United Airlines
Tue 10/136:10 am
TLL
-
ONT
2 stops24h 21m
United Airlines
Deal found 7/24$789
This United Airlines deal was found by Cheapflights users on 7/22. 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 8/166:00 am
ONT
-
TLL
2 stops21h 05m
United Airlines
Sun 8/306:10 am
TLL
-
ONT
2 stops22h 01m
United Airlines
Deal found 7/22$816
This United Airlines deal was found by Cheapflights users on 7/24. 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 12/295:00 am
ONT
-
TLL
2 stops26h 10m
United Airlines
Fri 1/81:35 pm
TLL
-
ONT
2 stops40h 45m
United Airlines
Deal found 7/24$843
This United Airlines deal was found by Cheapflights users on 7/24. 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 12/295:00 am
ONT
-
TLL
2 stops26h 10m
United Airlines
Sat 1/95:55 pm
TLL
-
ONT
2 stops33h 52m
United Airlines
Deal found 7/24$844

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 July 26, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$750
(United Airlines)

One-way from

$523
(United Airlines)

Popular in

February

Cheapest in

January

Average price

$934
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. 17% potential increase in price ($183 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 14% potential price decrease ($111 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 26, 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

Wed 12/30

5:00 am-5:10 pm

2 stops26h 10m

Tallinn

Sat 1/9

5:55 pm-5:47 pm

2 stops33h 52m

$751
Quickest round-trip

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Tue 8/25

1:18 pm-5:15 pm

2 stops17h 57m

Tallinn

Wed 9/9

6:10 am-6:16 pm

2 stops22h 06m

$758

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Tue 9/8

7:00 am-1:05 pm

2 stops20h 05m

Tallinn

Fri 9/18

6:10 am-8:01 pm

2 stops23h 51m

$758

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Wed 8/26

7:00 am-1:10 pm

2 stops20h 10m

Tallinn

Wed 9/9

6:10 am-8:01 pm

3 stops23h 51m

$758

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Wed 12/30

1:18 pm-12:40 am

2 stops25h 22m

Tallinn

Thu 1/7

6:35 am-5:47 pm

2 stops21h 12m

$759

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Sun 11/8

4:04 pm-12:40 am

2 stops22h 36m

Tallinn

Thu 11/12

6:35 am-8:56 pm

2 stops24h 21m

$762

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Sun 11/15

5:00 am-12:40 am

2 stops33h 40m

Tallinn

Thu 11/19

6:35 am-8:51 pm

2 stops24h 16m

$762
Cheapest one-way

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Tue 8/11

1:56 pm-12:25 am

2 stops24h 29m

$523
Quickest one-way

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Wed 8/12

9:01 am-5:15 pm

2 stops22h 14m

$523

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Thu 8/13

5:00 am-12:15 am

2 stops33h 15m

$526

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/25

Showing 1-10 of 14 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on Ontario-Tallinn flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Ontario-Tallinn flight deals on Cheapflights vs. Ovago >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 Ovago the most. Ovago 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.

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 $751, United Airlines can have you in Tallinn from Ontario in 26h 10m. 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.

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.

Alternative routes for Ontario to Tallinn

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Tallinn flights
San Francisco to Tallinn flights

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
©2026 Cheapflights