HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Estonia

$323+ 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TLL
nov. 15 — nov. 221
sáb. 11/15
sáb. 11/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from O'Hare Intl to Estonia 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 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 octubre 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$391
(Justfly.com)

One-way from

$323
(Kiwi.com)

Popular in

September

Cheapest in

March

Average price

$765
Provider with most accurate pricing for Chicago (CHI)-Tallinn flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Tallinn flights.
Search Deals
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. 13% potential increase in price ($113 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 octubre 16, 2025.

This Justfly.com deal was found by Cheapflights users on 10/15. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/187:10 amORD - TLL
2 stops24h 00mScandinavian Airlines
mar. 12/28:00 pmTLL - ORD
2 stops28h 45mScandinavian Airlines
Deal found 10/15$391
This Gurufare deal was found by Cheapflights users on 10/16. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/76:30 pmORD - TLL
2 stops36h 40mScandinavian Airlines
mar. 12/233:45 pmTLL - ORD
1 stop33h 00mScandinavian Airlines
Deal found 10/16$429
This Mytrip deal was found by Cheapflights users on 10/15. 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.
sáb. 11/297:20 pmORD - TLL
1 stop11h 50mScandinavian Airlines
sáb. 12/64:20 pmTLL - ORD
2 stops32h 25mScandinavian Airlines
Deal found 10/15$450
This oojo deal was found by Cheapflights users on 10/14. 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.
jue. 11/67:20 pmORD - TLL
1 stop22h 05mScandinavian Airlines
mié. 11/123:40 pmTLL - ORD
2 stops33h 05mScandinavian Airlines
Deal found 10/14$471
This Mytrip deal was found by Cheapflights users on 10/16. 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.
dom. 11/302:00 pmORD - TLL
2 stops22h 05mMultiple Airlines
dom. 12/71:55 pmTLL - ORD
1 stop14h 10mMultiple Airlines
Deal found 10/16$486
This Booking.com deal was found by Cheapflights users on 10/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/184:20 pmORD - TLL
1 stop12h 50mLufthansa
mar. 12/26:05 pmTLL - ORD
1 stop27h 05mLufthansa
Deal found 10/15$501
This Booking.com deal was found by Cheapflights users on 10/16. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/304:20 pmORD - TLL
1 stop16h 50mLufthansa
dom. 12/71:55 pmTLL - ORD
1 stop14h 10mLufthansa
Deal found 10/16$506
This oojo deal was found by Cheapflights users on 10/16. 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.
dom. 11/307:20 pmORD - TLL
2 stops20h 20mScandinavian Airlines
dom. 12/74:10 pmTLL - ORD
2 stops32h 35mScandinavian Airlines
Deal found 10/16$510

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 octubre 16, 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

mar. 11/18

7:10 am-3:10 pm

2 stops24h 00m

Tallinn

mar. 12/2

8:00 pm-4:45 pm

2 stops28h 45m

$391

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

lun. 2/9

10:40 am-3:10 pm

2 stops20h 30m

Tallinn

mar. 2/24

8:00 pm-4:45 pm

2 stops28h 45m

$413

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

dom. 12/7

6:30 pm-3:10 pm

2 stops36h 40m

Tallinn

mar. 12/23

3:45 pm-4:45 pm

1 stop33h 00m

$429

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

sáb. 11/29

7:20 pm-3:10 pm

1 stop11h 50m

Tallinn

sáb. 12/6

4:20 pm-4:45 pm

2 stops32h 25m

$450

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

jue. 11/6

7:20 pm-11:40 pm

2 stops20h 20m

Tallinn

mié. 11/12

3:40 pm-4:45 pm

2 stops33h 05m

$471

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

dom. 11/30

2:00 pm-8:05 pm

2 stops22h 05m

Tallinn

dom. 12/7

1:55 pm-8:05 pm

1 stop14h 10m

$486

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

mié. 3/4

7:20 pm-11:40 pm

2 stops20h 20m

Tallinn

dom. 3/8

11:00 am-5:45 pm

1 stop13h 45m

$495

ChicagoTartu

ORD - TAY

ORDTAY

Chicago O'Hare Intl

vie. 4/3

11:25 am-2:25 pm

2 stops43h 00m

Tartu

mar. 4/7

2:50 pm-9:40 am

2 stops50h 50m

$940

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

mar. 11/18

6:40 am-11:45 am

3 stops45h 05m

$323

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

mar. 11/18

7:05 am-12:50 pm

2 stops21h 45m

$403

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/16

Showing 1-10 of 13 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 $423). Flying from Chicago O'Hare Intl Airport to Estonia in July is currently the most expensive (average of $802). 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 octubre 16, 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 octubre 16, 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
1,332 reviews

Overall

7.6

Comfort

7.4

Food

6.7

Boarding

7.6

Crew

8.1

Entertainment

6.9

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
1,332 reviews
Finnair
7.6
Good
1,332 reviews

Overall

7.6

Comfort

7.4

Food

6.7

Boarding

7.6

Crew

8.1

Entertainment

6.9

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
1,533 reviews
Finnair
7.6
Good
1,332 reviews

Overall

7.6

Comfort

7.4

Food

6.7

Boarding

7.6

Crew

8.1

Entertainment

6.9

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
8,982 reviews
Finnair
7.6
Good
1,332 reviews

Overall

7.6

Comfort

7.4

Food

6.7

Boarding

7.6

Crew

8.1

Entertainment

6.9

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
7,497 reviews
Finnair
7.6
Good
1,332 reviews

Overall

7.6

Comfort

7.4

Food

6.7

Boarding

7.6

Crew

8.1

Entertainment

6.9

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 24h. Scandinavian Airlines provides one of the quickest options available for as low as $391. The distance between Chicago O'Hare Intl Airport and Estonia is about 4456 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 $423). Flying from Chicago O'Hare Intl Airport to Estonia in July is currently the most expensive (average of $802). 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

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 for O'Hare Intl to Estonia

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Heathrow flights
O'Hare Intl to Charles de Gaulle flights
O'Hare Intl to Leonardo da Vinci/Fiumicino flights
O'Hare Intl to Madrid flights
O'Hare Intl to Istanbul flights
O'Hare Intl to Dublin flights
O'Hare Intl to Orly flights
O'Hare Intl to Frankfurt flights
O'Hare Intl to Gatwick flights
O'Hare Intl to London City flights
O'Hare Intl to Barcelona-El Prat flights
Midway to Heathrow flights
O'Hare Intl to Amsterdam flights
Midway to Charles de Gaulle flights
O'Hare Intl to Frederic Chopin flights
O'Hare Intl to Stansted flights
O'Hare Intl to Athens flights
O'Hare Intl to Lisbon flights
O'Hare Intl to Luton flights
O'Hare Intl to Bruxelles-National flights
Midway to Leonardo da Vinci/Fiumicino flights
O'Hare Intl to Zurich flights
O'Hare Intl to Munich flights
O'Hare Intl to Beauvais-Tille flights
O'Hare Intl to Malpensa flights
O'Hare Intl to Krakow flights
Midway to Dublin flights
O'Hare Intl to Copenhagen flights
Midway to Madrid flights
O'Hare Intl to Keflavik Intl flights
O'Hare Intl to Sabiha Gokcen flights
O'Hare Intl to Vienna flights
Midway to Lisbon flights
O'Hare Intl to Linate flights
Midway to Barcelona-El Prat flights
O'Hare Intl to Prague flights
O'Hare Intl to Edinburgh flights
Midway to Athens flights
O'Hare Intl to Ciampino flights
O'Hare Intl to Berlin flights
Midway to Gatwick flights
O'Hare Intl to Geneva flights
Midway to Frankfurt flights
Midway to Frederic Chopin flights
O'Hare Intl to Florence flights
O'Hare Intl to Glasgow Intl flights
O'Hare Intl to Katowice flights
Midway to Bruxelles-National flights
O'Hare Intl to Belgrade flights
O'Hare Intl to Skopje flights

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 octubre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$424Average$460FlexibilityNo cancel feeOn-time77%
FinnairCheapest$513Average$763FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$529Average$680FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$535Average$725FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.