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Estonia

$389+ Cheap flights from Ontario (ONT) to Estonia

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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — TLL
May 31 — Jun 71
Sun 5/31
Sun 6/7
1 adult, Economy
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Cheap flight deals from Ontario to Estonia

Cheapest flights from Ontario to Estonia
Explore the most affordable flight options available from Ontario to Estonia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2026.

This United Airlines deal was found by Cheapflights users on 4/28. 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.
Sat 5/210:43 am
ONT
-
TLL
3 stops64h 22m
United Airlines
Sun 5/106:10 am
TLL
-
ONT
2 stops26h 49m
United Airlines
Deal found 4/28$831
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Thu 6/45:45 am
ONT
-
TLL
2 stops21h 45m
United Airlines
Tue 6/166:10 am
TLL
-
ONT
2 stops25h 45m
United Airlines
Deal found 4/28$1,049
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Thu 6/45:45 am
ONT
-
TLL
2 stops21h 45m
United Airlines
Sat 9/56:10 am
TLL
-
ONT
2 stops25h 49m
United Airlines
Deal found 4/28$1,107
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Wed 6/245:45 am
ONT
-
TLL
2 stops21h 25m
United Airlines
Mon 7/61:50 pm
TLL
-
ONT
2 stops42h 05m
United Airlines
Deal found 4/28$1,163
This United Airlines deal was found by Cheapflights users on 4/26. 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 6/45:45 am
ONT
-
TLL
2 stops25h 20m
United Airlines
Sat 7/46:10 am
TLL
-
ONT
2 stops25h 47m
United Airlines
Deal found 4/26$1,215
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Sat 6/205:45 am
ONT
-
TLL
2 stops21h 15m
United Airlines
Tue 6/301:50 pm
TLL
-
ONT
2 stops42h 05m
United Airlines
Deal found 4/28$1,233
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Fri 5/1510:37 am
ONT
-
TLL
2 stops20h 58m
United Airlines
Tue 5/196:10 am
TLL
-
ONT
2 stops21h 42m
United Airlines
Deal found 4/28$1,234
This United Airlines deal was found by Cheapflights users on 4/26. 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 6/55:45 am
ONT
-
TLL
2 stops21h 25m
United Airlines
Fri 9/46:10 am
TLL
-
ONT
2 stops22h 09m
United Airlines
Deal found 4/26$1,263
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Thu 5/146:59 pm
ONT
-
TLL
2 stops36h 36m
United Airlines
Mon 5/186:10 am
TLL
-
ONT
2 stops26h 49m
United Airlines
Deal found 4/28$1,274
This United Airlines deal was found by Cheapflights users on 4/30. 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 7/191:18 pm
ONT
-
TLL
2 stops49h 17m
United Airlines
Sun 8/21:45 pm
TLL
-
ONT
2 stops43h 06m
United Airlines
Deal found 4/30$1,284

Find flight deals from Ontario to Estonia

Keep the following information in mind while searching for Ontario to Estonia flight deals. Data was last updated May 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,049
(United Airlines)

One-way from

$389
(United Airlines)

Popular in

June

Cheapest in

January

Average price

$759
Provider with most accurate pricing for Los Angeles-Tallinn flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Tallinn flights.
Search Deals
From Ontario to Estonia
Search Deals
One-way flight from Ontario to Estonia
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($137 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 May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Estonia 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 May 1, 2026.
Use the filters below to find and compare flights from Ontario to Estonia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Thu 6/4

5:45 am-1:30 pm

2 stops21h 45m

Tallinn

Sat 9/5

6:10 am-9:59 pm

2 stops25h 49m

$1,107

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Wed 6/24

5:45 am-1:10 pm

2 stops21h 25m

Tallinn

Mon 7/6

1:50 pm-9:55 pm

2 stops42h 05m

$1,163

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Thu 6/4

5:45 am-5:05 pm

2 stops25h 20m

Tallinn

Sat 7/4

6:10 am-9:57 pm

2 stops25h 47m

$1,215

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Sat 6/20

5:45 am-1:00 pm

2 stops21h 15m

Tallinn

Tue 6/30

1:50 pm-9:55 pm

2 stops42h 05m

$1,233
Quickest round-trip

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Fri 6/5

5:45 am-1:10 pm

2 stops21h 25m

Tallinn

Fri 9/4

6:10 am-6:19 pm

2 stops22h 09m

$1,263

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Thu 5/14

6:59 pm-5:35 pm

2 stops36h 36m

Tallinn

Mon 5/18

6:10 am-10:59 pm

2 stops26h 49m

$1,274

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Sun 7/19

1:18 pm-12:35 am

2 stops49h 17m

Tallinn

Sun 8/2

1:45 pm-10:51 pm

2 stops43h 06m

$1,284

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Thu 6/11

5:45 am-5:05 pm

2 stops25h 20m

Tallinn

Thu 6/18

5:55 am-10:46 pm

2 stops26h 51m

$1,296

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Sun 6/14

5:45 am-1:05 pm

2 stops21h 20m

Tallinn

Mon 6/22

6:10 am-9:55 pm

2 stops25h 45m

$1,306

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Fri 6/5

5:45 am-1:10 pm

2 stops21h 25m

Tallinn

Sat 9/5

6:10 am-9:59 pm

2 stops25h 49m

$1,322

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/27

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Best time to book a flight from Ontario to Estonia

Have a flexible travel schedule? Discover the best time to fly to Estonia 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 Estonia
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Estonia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Estonia?

    If you book a flight to Estonia from Ontario, you will be flying from Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario.

  • How long is the flight from Ontario to Estonia?

    United Airlines can get you from Ontario to Estonia in just under 21h 45m. Your travel time can differ by up to . The distance between Ontario and Estonia is about 5626 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Estonia 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

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