$437+ 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 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — TLL
Nov 25 — Dec 21
Round-trip
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
Best
Last-minute
One-way
Cheapest flights from Ontario to TallinnExplore 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 October 26, 2026.
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 October 26, 2026.
This United Airlines deal was found by Cheapflights users on 10/23. 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 11/125:00 am -
2 stops26h 10m
Thu 11/195:55 pm -
2 stops38h 53m
Deal found 10/23![United Airlines logo]()
$755
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Wed 12/211:20 am -
2 stops19h 50m
Wed 12/96:35 am -
2 stops21h 01m
Deal found 10/21![United Airlines logo]()
$897
This Mytrip deal was found by Cheapflights users on 10/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:30 am -
2 stops24h 40m
Thu 11/197:05 am -
3 stops22h 25m
Deal found 10/23![Multiple Airlines logo]()
$1,795
This United Airlines deal was found by Cheapflights users on 10/25. 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.
Mon 12/1411:20 am -
2 stops19h 50m
Sun 1/36:35 am -
2 stops21h 11m
Deal found 10/25![United Airlines logo]()
$3,235
Best flights from Ontario to TallinnDiscover carefully curated flight deals from Ontario to Tallinn that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
Discover carefully curated flight deals from Ontario to Tallinn that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 26, 2026.
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Mon 3/294:03 pm -
2 stops22h 32m
Sun 4/46:10 am -
2 stops23h 57m
Deal found 10/21![United Airlines logo]()
$729
This United Airlines deal was found by Cheapflights users on 10/23. 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 11/125:00 am -
2 stops26h 10m
Thu 11/195:55 pm -
2 stops38h 53m
Deal found 10/23![United Airlines logo]()
$755
This Mytrip deal was found by Cheapflights users on 10/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:30 am -
2 stops24h 40m
Thu 11/197:05 am -
3 stops22h 25m
Deal found 10/23![Multiple Airlines logo]()
$1,795
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Wed 12/211:20 am -
2 stops19h 50m
Wed 12/96:35 am -
2 stops21h 01m
Deal found 10/21![United Airlines logo]()
$897
This United Airlines deal was found by Cheapflights users on 10/25. 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.
Mon 12/1411:20 am -
2 stops19h 50m
Sun 1/36:35 am -
2 stops21h 11m
Deal found 10/25![United Airlines logo]()
$3,235
Last-minute flights from Ontario to TallinnDiscover last-minute flight deals from Ontario to Tallinn. Data last updated October 26, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Tallinn. Data last updated October 26, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/23. 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 11/125:00 am -
2 stops26h 10m
Thu 11/195:55 pm -
2 stops38h 53m
Deal found 10/23![United Airlines logo]()
$755
This Mytrip deal was found by Cheapflights users on 10/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:30 am -
2 stops24h 40m
Thu 11/197:05 am -
3 stops22h 25m
Deal found 10/23![Multiple Airlines logo]()
$1,795
One-way flights from Ontario to TallinnSearch for one-way flight options from Ontario to Tallinn. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
Search for one-way flight options from Ontario to Tallinn. Find affordable one-way fares based on user searches. Data last updated October 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/316:30 am -
3 stops39h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$437
This Iberia deal was found by Cheapflights users on 10/23. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/296:00 am -
2 stops22h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$510
This United Airlines deal was found by Cheapflights users on 10/23. 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 12/315:55 am -
2 stops25h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![United Airlines logo]()
$526
This American Airlines deal was found by Cheapflights users on 10/23. 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.
Thu 11/1910:37 am -
2 stops19h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![American Airlines logo]()
$551
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 October 26, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $729 (United Airlines) |
One-way from | $437 (Kiwi.com) |
Popular in | February |
Cheapest in | January |
Average price | $1,957 |
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 7,457,451 searches. Data last updated October 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
Cheapest round-trip
OntarioTallinn
ONT Ontario - TLL Tallinn
ONTTLL
Ontario
Thu 12/31
6:30 am-8:05 am
3 stops39h 35m
Tallinn
Wed 12/31
12:00 am-1:00 pm
Nonstop0h 00m
$437
OntarioTallinn
ONT Ontario - TLL Tallinn
ONTTLL
Ontario
Sun 11/29
6:00 am-2:10 pm
2 stops22h 10m
Tallinn
Wed 12/31
12:00 am-1:00 pm
Nonstop0h 00m
$510
Quickest round-trip
OntarioTallinn
ONT Ontario - TLL Tallinn
ONTTLL
Ontario
Thu 11/19
10:37 am-4:05 pm
2 stops19h 28m
Tallinn
Wed 12/31
12:00 am-1:00 pm
Nonstop0h 00m
$551
OntarioTallinn
ONT Ontario - TLL Tallinn
ONTTLL
Ontario
Sun 11/29
6:37 pm-5:10 pm
2 stops60h 33m
Tallinn
Wed 12/31
12:00 am-1:00 pm
Nonstop0h 00m
$551
OntarioTallinn
ONT Ontario - TLL Tallinn
ONTTLL
Ontario
Mon 3/29
4:03 pm-12:35 am
2 stops22h 32m
Tallinn
Sun 4/4
6:10 am-8:07 pm
2 stops23h 57m
$729
OntarioTallinn
ONT Ontario - TLL Tallinn
ONTTLL
Ontario
Thu 11/12
5:00 am-5:10 pm
2 stops26h 10m
Tallinn
Thu 11/19
5:55 pm-10:48 pm
2 stops38h 53m
$755
OntarioTallinn
ONT Ontario - TLL Tallinn
ONTTLL
Ontario
Wed 12/2
11:20 am-5:10 pm
2 stops19h 50m
Tallinn
Wed 12/9
6:35 am-5:36 pm
2 stops21h 01m
$897
OntarioTallinn
ONT Ontario - TLL Tallinn
ONTTLL
Ontario
Thu 11/12
6:30 am-5:10 pm
2 stops24h 40m
Tallinn
Thu 11/19
7:05 am-7:30 pm
3 stops22h 25m
$1,795
OntarioTallinn
ONT Ontario - TLL Tallinn
ONTTLL
Ontario
Mon 12/14
11:20 am-5:10 pm
2 stops19h 50m
Tallinn
Sun 1/3
6:35 am-5:46 pm
2 stops21h 11m
$3,235
Sorted by cheapest first
- 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.
ONT-TLL
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.
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
Complete your trip
Flights by cabin class
Other flight options
Other flights from Ontario
Popular flights
Tallinn flight routes