HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Tallinn

$299+ Cheap flights from O'Hare Intl (ORD) to Tallinn (TLL)

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 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TLL
Apr 17 — Apr 241
Fri 4/17
Fri 4/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from O'Hare Intl to Tallinn 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 Tallinn

Cheapest flights from O'Hare Intl to Tallinn
Explore the most affordable flight options available from O'Hare Intl to Tallinn. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 18, 2026.

This oojo deal was found by Cheapflights users on 3/17. 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.
Fri 5/17:15 pm
ORD
-
TLL
1 stop31h 30m
Scandinavian Airlines
Fri 5/87:00 am
TLL
-
ORD
2 stops17h 10m
Scandinavian Airlines
Deal found 3/17$435
This Scandinavian Airlines deal was found by Cheapflights users on 3/16. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/167:20 pm
ORD
-
TLL
1 stop31h 10m
Scandinavian Airlines
Fri 11/207:00 am
TLL
-
ORD
2 stops17h 45m
Scandinavian Airlines
Deal found 3/16$471
This oojo deal was found by Cheapflights users on 3/13. 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.
Mon 4/277:15 pm
ORD
-
TLL
1 stop12h 00m
Scandinavian Airlines
Mon 5/46:15 am
TLL
-
ORD
1 stop17h 55m
Scandinavian Airlines
Deal found 3/13$482
This FlightHub deal was found by Cheapflights users on 3/13. 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.
Thu 4/911:25 am
ORD
-
TLL
1 stop14h 55m
Turkish Airlines
Thu 4/2311:15 am
TLL
-
ORD
1 stop30h 25m
Turkish Airlines
Deal found 3/13$523
This oojo deal was found by Cheapflights users on 3/17. 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.
Tue 4/288:10 pm
ORD
-
TLL
1 stop30h 10m
Turkish Airlines
Tue 5/57:35 pm
TLL
-
ORD
1 stop30h 40m
Turkish Airlines
Deal found 3/17$532
This oojo deal was found by Cheapflights users on 3/16. 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.
Fri 10/237:15 pm
ORD
-
TLL
1 stop12h 00m
Scandinavian Airlines
Sat 10/3111:10 am
TLL
-
ORD
1 stop13h 35m
Scandinavian Airlines
Deal found 3/16$537

Find flight deals from O'Hare Intl to Tallinn

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Tallinn (TLL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$435
(oojo)

One-way from

$299
(Booking.com)

Popular in

June

Cheapest in

January

Average price

$495
Provider with most accurate pricing for Chicago O'Hare Intl-Tallinn flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Tallinn flights.
Search Deals
From Chicago O'Hare Intl to Tallinn
Search Deals
One-way flight from Chicago O'Hare Intl to Tallinn
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($259 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to Tallinn 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 March 18, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Tallinn that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Fri 4/17

7:15 pm-10:10 am

2 stops30h 55m

Tallinn

Sun 4/19

3:50 pm-4:10 pm

1 stop32h 20m

$599

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Mon 9/7

11:25 am-6:40 pm

1 stop23h 15m

Tallinn

Sun 9/13

11:15 am-9:40 am

1 stop30h 25m

$601

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 4/28

6:50 am-3:15 pm

2 stops24h 25m

Tallinn

Tue 5/5

6:15 am-9:29 pm

2 stops23h 14m

$628

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 5/19

9:55 am-1:05 pm

2 stops19h 10m

Tallinn

Wed 5/27

6:10 am-2:55 pm

1 stop16h 45m

$679

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Wed 8/12

7:11 am-5:15 pm

2 stops26h 04m

Tallinn

Mon 8/17

1:50 pm-8:05 pm

2 stops38h 15m

$702
Quickest round-trip

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Mon 5/11

9:30 pm-4:55 pm

1 stop11h 25m

Tallinn

Sun 5/17

6:00 am-5:50 pm

1 stop19h 50m

$706

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Thu 8/13

4:05 pm-1:30 pm

1 stop13h 25m

Tallinn

Fri 8/21

6:10 am-12:48 am

2 stops26h 38m

$718

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 5/19

8:10 pm-10:20 am

1 stop30h 10m

Tallinn

Thu 5/28

7:35 pm-9:40 am

1 stop22h 05m

$770

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 7/7

2:25 pm-5:15 pm

2 stops18h 50m

Tallinn

Tue 8/4

6:10 am-11:26 pm

2 stops25h 16m

$802

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 6/16

9:55 am-1:05 pm

2 stops19h 10m

Tallinn

Tue 6/30

1:50 pm-1:22 pm

2 stops31h 32m

$821

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/13

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

Compare providers for flights from O'Hare Intl to Tallinn

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from O'Hare Intl to Tallinn in March.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Tallinn flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-Tallinn flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Tallinn flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Tallinn flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago O'Hare Intl Airport-Tallinn flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Have a flexible travel schedule? Discover the best time to fly to Tallinn 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 Tallinn

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

Currently, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Tallinn (average of $433). Flying from Chicago O'Hare Intl Airport to Tallinn in July is currently the most expensive (average of $781). 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.

Reviews of airlines servicing Tallinn

Get insights into the airlines that provide service to Tallinn. 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 Tallinn. Reviews last updated March 18, 2026.
See what other customers who have flown with Finnair,United Airlines, andScandinavian Airlines from Chicago O'Hare Intl Airport to Tallinn 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
1,371 reviews

Crew

8.2

Entertainment

6.9

Comfort

7.5

Boarding

7.7

Food

6.7

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
1,371 reviews
Finnair
7.6
Good
1,371 reviews

Crew

8.2

Entertainment

6.9

Comfort

7.5

Boarding

7.7

Food

6.7

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
9,431 reviews
Finnair
7.6
Good
1,371 reviews

Crew

8.2

Entertainment

6.9

Comfort

7.5

Boarding

7.7

Food

6.7

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
1,716 reviews
Finnair
7.6
Good
1,371 reviews

Crew

8.2

Entertainment

6.9

Comfort

7.5

Boarding

7.7

Food

6.7

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?
Lufthansa
6.8
Okay
7,858 reviews
Finnair
7.6
Good
1,371 reviews

Crew

8.2

Entertainment

6.9

Comfort

7.5

Boarding

7.7

Food

6.7

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 Tallinn. 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 into for flights to Tallinn from Chicago O'Hare Intl?

    If you book a flight to Tallinn from Chicago O'Hare Intl, you will be flying to Tallinn, which is the city’s only airport. Tallinn (TLL) is located 2.1 mi from the center of Tallinn. There are 0 flights from Chicago O'Hare Intl to Tallinn per day from 4 different airlines.

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

    Airlines like Scandinavian Airlines, Turkish Airlines, and United Airlines fly from Chicago O'Hare Intl Airport to Tallinn in about 19h 10m. The time it takes to get you to your destination can typically vary by up to 11h 45m. The distance from Chicago O'Hare Intl Airport to Tallinn is about 4456 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Tallinn round-trip?

    Flying on Scandinavian Airlines is currently your cheapest option to Tallinn, with prices starting at $433. Additional round-trip tickets that might be worth considering are offered by United Airlines and Lufthansa, with the lowest prices starting at $486 and $492, respectively. You may be able to fly from Chicago O'Hare Intl Airport to Tallinn for 37% less than the average price by searching for these airlines.

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

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

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

    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 Tallinn.

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

    Yes. Cheapflights offers flight deals from O'Hare Intl to Tallinn 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 Tallinn?

    Currently, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Tallinn (average of $433). Flying from Chicago O'Hare Intl Airport to Tallinn in July is currently the most expensive (average of $781). 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.

Top 4 airlines flying from O'Hare Intl to Tallinn

Discover the top 4 airlines that operate flights from O'Hare Intl to Tallinn. 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 March 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$433Average$559FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$486Average$680FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$492Average$881FlexibilityNo cancel feeOn-time76%
FinnairCheapest$678Average$827FlexibilityNo 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.