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$297+ 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 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TLL
Jan 6 — Jan 131
Tue 1/6
Tue 1/13
1 adult, Economy
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Cheap 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 December 7, 2025.

This Expedia deal was found by Cheapflights users on 12/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:10 pmORD - TLL
2 stops46h 40mMultiple Airlines
Mon 3/91:40 pmTLL - ORD
1 stop14h 25mMultiple Airlines
Deal found 12/6$602
This KAYAK deal was found by Cheapflights users on 12/6. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:10 pmORD - TLL
2 stops46h 40mSWISS
Mon 3/96:05 amTLL - ORD
1 stop14h 40mSWISS
Deal found 12/6$604
This Expedia deal was found by Cheapflights users on 12/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:10 pmORD - TLL
2 stops46h 40mMultiple Airlines
Thu 3/57:25 amTLL - ORD
2 stops17h 14mMultiple Airlines
Deal found 12/6$611
This Expedia deal was found by Cheapflights users on 12/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:10 pmORD - TLL
2 stops38h 50mLufthansa
Thu 3/56:20 amTLL - ORD
1 stop21h 45mLufthansa
Deal found 12/6$614
This United Airlines deal was found by Cheapflights users on 12/7. 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 12/316:10 pmORD - TLL
2 stops34h 40mUnited Airlines
Sat 1/105:55 pmTLL - ORD
1 stop25h 15mUnited Airlines
Deal found 12/7$663
This United Airlines deal was found by Cheapflights users on 12/7. 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 12/316:10 pmORD - TLL
2 stops34h 40mUnited Airlines
Fri 1/91:35 pmTLL - ORD
2 stops37h 56mUnited Airlines
Deal found 12/7$670
This United Airlines deal was found by Cheapflights users on 12/7. 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 12/316:10 pmORD - TLL
2 stops34h 40mUnited Airlines
Sun 1/111:55 pmTLL - ORD
2 stops34h 25mUnited Airlines
Deal found 12/7$678
This KAYAK deal was found by Cheapflights users on 12/7. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:20 pmORD - TLL
1 stop11h 50mScandinavian Airlines
Sun 1/113:45 pmTLL - ORD
1 stop33h 00mScandinavian Airlines
Deal found 12/7$684
This KAYAK deal was found by Cheapflights users on 12/7. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:20 pmORD - TLL
2 stops35h 40mScandinavian Airlines
Sat 1/104:20 pmTLL - ORD
2 stops56h 25mScandinavian Airlines
Deal found 12/7$698

Find 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 December 7, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$400
(SmartFares)

One-way from

$297
(Kiwi.com)

Popular in

September

Cheapest in

March

Average price

$982
Provider with most accurate pricing for Chicago (CHI)-Tallinn flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Tallinn flights.
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From Chicago O'Hare Intl to Estonia
Search Deals
One-way flight from Chicago O'Hare Intl to Estonia
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($69 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
Search Deals

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 December 7, 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

Tue 1/20

7:05 am-10:20 am

2 stops19h 15m

Tallinn

Tue 1/27

3:45 pm-4:45 pm

1 stop33h 00m

$423

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Mon 1/26

10:29 am-3:10 pm

2 stops20h 41m

Tallinn

Tue 2/10

8:00 pm-4:45 pm

2 stops28h 45m

$426

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Fri 2/6

7:01 am-3:10 pm

2 stops24h 09m

Tallinn

Sun 2/8

6:25 am-4:55 pm

1 stop18h 30m

$428

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Thu 1/22

7:01 am-3:10 pm

2 stops24h 09m

Tallinn

Thu 1/29

6:25 am-4:55 pm

1 stop18h 30m

$436

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Fri 2/6

7:01 am-3:10 pm

2 stops24h 09m

Tallinn

Sat 2/14

6:25 am-4:45 pm

1 stop18h 20m

$436

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Thu 1/29

10:29 am-3:10 pm

2 stops20h 41m

Tallinn

Thu 3/26

7:00 am-5:45 pm

2 stops17h 45m

$454

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 2/24

10:11 am-10:20 am

2 stops16h 09m

Tallinn

Sat 2/28

4:10 pm-4:45 pm

2 stops32h 35m

$455

ChicagoTartu

ORD - TAY

ORDTAY

Chicago O'Hare Intl

Tue 1/20

8:45 pm-1:00 am

2 stops20h 15m

Tartu

Tue 1/27

6:00 am-6:01 am

2 stops32h 01m

$622

ChicagoTartu

ORD - TAY

ORDTAY

Chicago O'Hare Intl

Mon 3/2

11:50 am-2:15 pm

2 stops42h 25m

Tartu

Fri 3/6

2:40 pm-6:25 pm

2 stops59h 45m

$878

ChicagoTartu

ORD - TAY

ORDTAY

Chicago O'Hare Intl

Tue 1/20

11:56 am-2:15 pm

2 stops18h 19m

Tartu

Tue 1/27

6:00 am-6:45 pm

3 stops20h 45m

$2,979

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

Showing 1-10 of 20 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, April is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Estonia (average of $431). Flying from Chicago O'Hare Intl Airport to Estonia in July is currently the most expensive (average of $808). 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 December 7, 2025.

When flying from Chicago O'Hare Intl Airport to Estonia, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 17% versus a flight at noon.

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 December 7, 2025.
See what other customers who have flown with Finnair, Scandinavian Airlines, and United Airlines from Chicago O'Hare Intl Airport to Estonia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,334 reviews

Comfort

7.4

Food

6.7

Crew

8.1

Entertainment

6.9

Overall

7.6

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Finnair
7.6
Good
1,334 reviews
Finnair
7.6
Good
1,334 reviews

Comfort

7.4

Food

6.7

Crew

8.1

Entertainment

6.9

Overall

7.6

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Scandinavian Airlines
7.4
Good
1,596 reviews
Finnair
7.6
Good
1,334 reviews

Comfort

7.4

Food

6.7

Crew

8.1

Entertainment

6.9

Overall

7.6

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
United Airlines
7.4
Good
9,072 reviews
Finnair
7.6
Good
1,334 reviews

Comfort

7.4

Food

6.7

Crew

8.1

Entertainment

6.9

Overall

7.6

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Lufthansa
6.8
Okay
7,616 reviews
Finnair
7.6
Good
1,334 reviews

Comfort

7.4

Food

6.7

Crew

8.1

Entertainment

6.9

Overall

7.6

Boarding

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

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.

  • How long is the flight from Chicago O'Hare Intl Airport to Estonia?

    A quick flight from Chicago O'Hare Intl Airport to Estonia can take about 20h 15m. Scandinavian Airlines provides one of the quickest options available for as low as $622. The distance between Chicago O'Hare Intl Airport and Estonia is about 4558 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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, April is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Estonia (average of $431). Flying from Chicago O'Hare Intl Airport to Estonia in July is currently the most expensive (average of $808). 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 4 airlines flying from O'Hare Intl to Estonia

Discover the top 4 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 December 7, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$433Average$559FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$528Average$680FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$535Average$811FlexibilityNo cancel feeOn-time76%
FinnairCheapest$624Average$912FlexibilityNo cancel feeOn-time76%

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