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Estonia

$413+ 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 12/29. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — TLL
Jan 13 — Jan 201
Tue 1/13
Tue 1/20
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 December 14, 2025.

This United Airlines deal was found by Cheapflights users on 12/12. 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 12/126:00 amONT - TLL
2 stops25h 00mUnited Airlines
Fri 12/196:05 amTLL - ONT
2 stops25h 02mUnited Airlines
Deal found 12/12$1,366

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 December 14, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$552
(United Airlines)

One-way from

$413
(United Airlines)

Popular in

December

Cheapest in

January

Average price

$982
Provider with most accurate pricing for Los Angeles-Tallinn flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Tallinn flights.
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From Ontario to Estonia
Search Deals
One-way flight from Ontario to Estonia
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($60 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 December 2025
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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 December 14, 2025.
Use the filters below to find and compare flights from Ontario to Estonia that are best for you.

Fly from

Ontario

Fly to

Estonia

Route

Depart

Return

Price

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Wed 1/21

5:05 am-5:10 pm

2 stops26h 05m

Tallinn

Sun 1/25

1:55 pm-10:53 pm

2 stops18h 58m

$552

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Thu 1/15

1:53 pm-11:50 pm

2 stops23h 57m

Tallinn

Tue 1/20

6:15 am-8:58 pm

2 stops24h 43m

$553

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Mon 2/9

1:53 pm-11:55 pm

2 stops48h 02m

Tallinn

Wed 2/18

6:00 am-12:43 pm

2 stops40h 43m

$1,452

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Thu 3/19

1:50 pm-11:55 pm

2 stops25h 05m

Tallinn

Tue 3/24

6:15 am-12:18 pm

2 stops39h 03m

$2,295

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Mon 12/29

5:05 am-5:10 pm

2 stops26h 05m

$413

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Wed 3/4

5:00 am-5:10 pm

2 stops26h 10m

$414

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Tue 3/3

8:00 am-4:50 pm

2 stops22h 50m

$414

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Sat 3/28

11:59 pm-5:15 pm

2 stops31h 16m

$414

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Mon 3/2

1:45 pm-11:55 pm

2 stops24h 10m

$414

OntarioTallinn

ONT - TLL

ONTTLL

Ontario

Wed 12/31

11:59 pm-12:50 pm

2 stops26h 51m

$417

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 12 results
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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

What is the cheapest month to book a flight from Ontario to Estonia?

Currently, September is the cheapest month in which you can book a flight from Ontario to Estonia (average of $412). Flying from Ontario to Estonia in June is currently the most expensive (average of $688). 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 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 26h 05m. 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.

  • What is the cheapest month to book a flight from Ontario to Estonia?

    Currently, September is the cheapest month in which you can book a flight from Ontario to Estonia (average of $412). Flying from Ontario to Estonia in June is currently the most expensive (average of $688). 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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