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$444+ Cheap flights from O'Hare Intl (ORD) 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 6/11. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TLL
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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Cheap flight deals from O'Hare Intl to Estonia

Keep the following information in mind while searching for O'Hare Intl to Estonia flight deals. Data was last updated April 29, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$564
(Mytrip)

One-way from

$444
(Kiwi.com)

Popular in

July

Cheapest in

March

Average price

$581
Provider with most accurate pricing for Chicago (CHI)-Tallinn Ulemiste flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Tallinn Ulemiste flights.
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From Chicago O'Hare Intl to Estonia
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One-way flight from Chicago O'Hare Intl to Estonia
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Highest demand for flights based on searches. 25% potential increase in price ($248 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from O'Hare Intl to Estonia

Cheapest flights from O'Hare Intl to Estonia
Explore the most affordable flight options available from O'Hare Intl to Estonia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2025.

This FlightHub deal was found by Cheapflights users on 4/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/310:10 amORD - TLL
2 stops31h 15mScandinavian Airlines
Wed 9/104:35 pmTLL - ORD
2 stops31h 35mScandinavian Airlines
Deal found 4/29$524
This Lufthansa 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/37:05 pmORD - TLL
1 stop22h 25mMultiple Airlines
Wed 9/102:45 pmTLL - ORD
1 stop13h 10mMultiple Airlines
Deal found 4/28$581
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/209:40 pmORD - TLL
1 stop12h 45mLufthansa
Thu 8/146:00 amTLL - ORD
1 stop14h 55mLufthansa
Deal found 4/28$582
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.
Mon 7/2110:30 pmORD - TLL
1 stop17h 50mUnited Airlines
Thu 8/146:00 amTLL - ORD
1 stop14h 55mUnited Airlines
Deal found 4/28$587
This SWISS 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/202:20 pmORD - TLL
1 stop27h 10mSWISS
Sat 8/166:00 amTLL - ORD
1 stop14h 10mSWISS
Deal found 4/28$635
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2310:40 amORD - TLL
2 stops25h 15mAir Canada
Tue 8/127:20 amTLL - ORD
2 stops15h 31mAir Canada
Deal found 4/28$667
This Finnair deal was found by Cheapflights users on 4/29. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/215:45 pmORD - TLL
2 stops14h 20mFinnair
Tue 7/86:00 amTLL - ORD
2 stops16h 40mFinnair
Deal found 4/29$820
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/124:59 pmORD - TLL
2 stops15h 06mAmerican Airlines
Thu 6/196:55 amTLL - ORD
2 stops23h 53mAmerican Airlines
Deal found 4/28$821
This oojo deal was found by Cheapflights users on 4/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/225:40 pmORD - TLL
2 stops20h 15mBritish Airways
Mon 5/2610:00 amTLL - ORD
2 stops33h 45mBritish Airways
Deal found 4/27$925

Cheapflights Fare Finder

Customize your flight search to find flights from O'Hare Intl 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 April 29, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Estonia that are best for you.

Fly from

O'Hare Intl

Fly to

Estonia

Route

Depart

Return

Price

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Wed 9/3

10:10 am-1:25 am

2 stops31h 15m

Tallinn Ulemiste

Wed 9/10

4:35 pm-4:10 pm

2 stops31h 35m

$524

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Wed 9/3

7:05 pm-1:30 am

1 stop22h 25m

Tallinn Ulemiste

Wed 9/10

2:45 pm-7:55 pm

1 stop13h 10m

$581

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Sun 7/20

9:40 pm-6:25 pm

1 stop12h 45m

Tallinn Ulemiste

Thu 8/14

6:00 am-12:55 pm

1 stop14h 55m

$582

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Mon 7/21

10:30 pm-12:20 am

1 stop17h 50m

Tallinn Ulemiste

Thu 8/14

6:00 am-12:55 pm

1 stop14h 55m

$587

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Sun 7/20

2:20 pm-1:30 am

1 stop27h 10m

Tallinn Ulemiste

Sat 8/16

6:00 am-12:10 pm

1 stop14h 10m

$635

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Wed 7/23

10:40 am-7:55 pm

2 stops25h 15m

Tallinn Ulemiste

Tue 8/12

7:20 am-2:51 pm

2 stops15h 31m

$667

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Sat 6/21

5:45 pm-4:05 pm

2 stops14h 20m

Tallinn Ulemiste

Tue 7/8

6:00 am-2:40 pm

2 stops16h 40m

$820

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Thu 6/12

4:59 pm-4:05 pm

2 stops15h 06m

Tallinn Ulemiste

Thu 6/19

6:55 am-10:48 pm

2 stops23h 53m

$821

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Thu 5/22

5:40 pm-9:55 pm

2 stops20h 15m

Tallinn Ulemiste

Mon 5/26

10:00 am-11:45 am

2 stops33h 45m

$925

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Wed 6/11

5:51 am-12:10 am

3 stops34h 19m

$444

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 16 results
1
2

Best time to book a flight from O'Hare Intl to Estonia

Have a flexible travel schedule? Discover the best time to fly to Estonia from O'Hare Intl 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 Chicago O'Hare Intl Airport to Estonia

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Estonia?

Currently, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Estonia (average of $550). Flying from Chicago O'Hare Intl Airport to Estonia in June is currently the most expensive (average of $1,022). 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.

What is the cheapest time of day to fly from ORD to EE?

Find hourly flight availability from O'Hare Intl to Estonia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2025.

When flying from Chicago O'Hare Intl Airport to Estonia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Estonia by month

Plan your trip to Estonia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Estonia ranges from 1.3 - 3.3 inches per month. August is typically the wettest month, when rainfall can reach 3.3 in. February is typically the driest time to visit Estonia when rainfall is around 1.3 in.

Temperature in Estonia by month

Plan your trip to Estonia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Estonia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Estonia

Get insights into the airlines that provide service to Estonia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Estonia. Reviews last updated April 29, 2025.
Finnair
7.6
Good
1,273 reviews

Comfort

7.4

Food

6.7

Boarding

7.6

Entertainment

6.9

Crew

8.1

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?
Finnair
7.6
Good
1,273 reviews
Finnair
7.6
Good
1,273 reviews

Comfort

7.4

Food

6.7

Boarding

7.6

Entertainment

6.9

Crew

8.1

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?
SWISS
7.5
Good
1,588 reviews
Finnair
7.6
Good
1,273 reviews

Comfort

7.4

Food

6.7

Boarding

7.6

Entertainment

6.9

Crew

8.1

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?
United Airlines
7.4
Good
8,696 reviews
Finnair
7.6
Good
1,273 reviews

Comfort

7.4

Food

6.7

Boarding

7.6

Entertainment

6.9

Crew

8.1

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?
Scandinavian Airlines
7.3
Good
1,349 reviews
Finnair
7.6
Good
1,273 reviews

Comfort

7.4

Food

6.7

Boarding

7.6

Entertainment

6.9

Crew

8.1

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?
American Airlines
7.2
Good
10,000 reviews
Finnair
7.6
Good
1,273 reviews

Comfort

7.4

Food

6.7

Boarding

7.6

Entertainment

6.9

Crew

8.1

Overall

7.6

Reviews

1 / 20
2.0
Mediocre

Rowland,Dec 2024

HEL - HKG

Finnair, a large European airline, have a very poor boarding practice whereby they collect every passenger waiting at the gate into an even smaller closed in area after checking passports (again) and boarding cards - then simply open the boarding causing a crowd crush as ALL passengers attempt to board all at once. Surely a more controllable method these days is to board via seat row numbers?

Related info for your journey

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

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Estonia one-way?

    To fly one-way, consider booking your trip with SWISS, which is currently one of the cheapest options available, starting at $594. Scandinavian Airlines flights start at $604 while deals on Lufthansa start at $661 one-way.

  • Can I find deals for flights from O'Hare Intl to Estonia that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Estonia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Estonia?

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

  • Can I find deals for business class flights from O'Hare Intl to Estonia?

    Yes. Cheapflights offers flight deals from O'Hare Intl 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 Chicago O'Hare Intl Airport to Estonia?

    Currently, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Estonia (average of $550). Flying from Chicago O'Hare Intl Airport to Estonia in June is currently the most expensive (average of $1,022). 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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Alternative routes for O'Hare Intl to Estonia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from O'Hare Intl to Estonia

Discover the top 5 airlines that operate flights from O'Hare Intl to Estonia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$414Average$460FlexibilityNo cancel feeOn-time77%
FinnairCheapest$513Average$772FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$529Average$680FlexibilityNo cancel feeOn-time69%
LOTCheapest$539Average$1,104FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$539Average$663FlexibilityNo cancel feeOn-time76%

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