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Tallinn

$444+ 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 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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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Tallinn Ulemiste are usually found in December or March, booked 44 days in advance, depart on a Wednesday or Sunday and return on a Thursday

Cheap 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 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

June

Cheapest in

December

Average price

$633
Provider with most accurate pricing for Chicago O'Hare Intl-Tallinn Ulemiste flight deals.
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Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Tallinn Ulemiste flights.
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From Chicago O'Hare Intl to Tallinn Ulemiste
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One-way flight from Chicago O'Hare Intl to Tallinn Ulemiste
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Highest demand for flights based on searches. 24% potential increase in price ($240 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($34 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 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 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 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 April 29, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Tallinn that are best for you.

Fly from

O'Hare Intl

Fly to

Tallinn

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 14 results
1
2
  • Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Tallinn flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Chicago O'Hare Intl Airport-Tallinn flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Tallinn?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Tallinn. Price data was last updated on April 25, 2025.

The best time to book flights from Chicago O'Hare Intl Airport to Tallinn is 44 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Tallinn (average of $550). Flying from Chicago O'Hare Intl Airport to Tallinn 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 TLL?

Find hourly flight availability from O'Hare Intl to Tallinn. 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.

Unlike at noon, when flights are generally more expensive, you can save up to 18% on flights from Chicago O'Hare Intl Airport to Tallinn by exploring options for tickets in the evening.

Rainfall in Tallinn by month

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

In terms of precipitation, rainfall in Tallinn 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 Tallinn when rainfall is around 1.3 in.

Temperature in Tallinn by month

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

If weather is an important factor for your trip to Tallinn, 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 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 April 29, 2025.
Finnair
7.6
Good
1,273 reviews

Comfort

7.4

Overall

7.6

Entertainment

6.9

Food

6.7

Boarding

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
Finnair
7.6
Good
1,273 reviews
Finnair
7.6
Good
1,273 reviews

Comfort

7.4

Overall

7.6

Entertainment

6.9

Food

6.7

Boarding

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
SWISS
7.5
Good
1,588 reviews
Finnair
7.6
Good
1,273 reviews

Comfort

7.4

Overall

7.6

Entertainment

6.9

Food

6.7

Boarding

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
United Airlines
7.4
Good
8,696 reviews
Finnair
7.6
Good
1,273 reviews

Comfort

7.4

Overall

7.6

Entertainment

6.9

Food

6.7

Boarding

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
Scandinavian Airlines
7.3
Good
1,349 reviews
Finnair
7.6
Good
1,273 reviews

Comfort

7.4

Overall

7.6

Entertainment

6.9

Food

6.7

Boarding

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight
American Airlines
7.2
Good
10,000 reviews
Finnair
7.6
Good
1,273 reviews

Comfort

7.4

Overall

7.6

Entertainment

6.9

Food

6.7

Boarding

7.6

Crew

8.1

Reviews

1 / 20
4.0
Okay

Julia,Feb 2024

JFK - HEL

The bathroom was broken, AC wasn’t working, tv wasn’t working for half the flight

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 Ulemiste, which is the city’s only airport. Tallinn Ulemiste (TLL) is located 2.1 mi from the center of Tallinn. There are 0 flights from Chicago O'Hare Intl to Ulemiste per day from 5 different airlines.

  • 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 $564. Additional round-trip tickets that might be worth considering are offered by Lufthansa and United Airlines, with the lowest prices starting at $582 and $587, respectively. You may be able to fly from Chicago O'Hare Intl Airport to Tallinn for 23% less than the average price by searching for these airlines.

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

    The cheapest airlines for a one-way flight from Chicago O'Hare Intl Airport to Tallinn are SWISS ($594), Scandinavian Airlines ($604), and Lufthansa ($661).

  • 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, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Tallinn (average of $550). Flying from Chicago O'Hare Intl Airport to Tallinn 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 Tallinn

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 Tallinn

Discover the top 5 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 April 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$414Average$460FlexibilityNo cancel feeOn-time77%
FinnairCheapest$513Average$759FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$529Average$712FlexibilityNo cancel feeOn-time69%
LOTCheapest$539Average$1,104FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$539Average$643FlexibilityNo cancel feeOn-time76%

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