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Estonia

$270+ Cheap flights from Illinois 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TLL
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Illinois to Estonia

Cheapest flights from Illinois to Estonia
Explore the most affordable flight options available from Illinois to Estonia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This oojo deal was found by Cheapflights users on 1/27. 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.
Fri 2/67:20 pm
ORD
-
TLL
1 stop22h 05m
Scandinavian Airlines
Sat 2/146:25 am
TLL
-
ORD
1 stop18h 20m
Scandinavian Airlines
Deal found 1/27$468
This oojo deal was found by Cheapflights users on 1/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/238:20 pm
ORD
-
TLL
2 stops20h 20m
Scandinavian Airlines
Thu 4/27:00 am
TLL
-
ORD
2 stops41h 10m
Scandinavian Airlines
Deal found 1/28$470
This FlightHub deal was found by Cheapflights users on 1/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:15 pm
ORD
-
TLL
2 stops31h 50m
Scandinavian Airlines
Sun 9/133:50 pm
TLL
-
ORD
1 stop32h 20m
Scandinavian Airlines
Deal found 1/27$480
This Mytrip deal was found by Cheapflights users on 1/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/3112:50 pm
ORD
-
TLL
2 stops23h 05m
Multiple Airlines
Mon 4/61:50 pm
TLL
-
ORD
1 stop31h 05m
Multiple Airlines
Deal found 1/28$490
This Air Canada deal was found by Cheapflights users on 1/28. 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.
Tue 2/242:00 pm
ORD
-
TLL
2 stops22h 05m
Multiple Airlines
Tue 3/36:15 am
TLL
-
ORD
2 stops37h 03m
Multiple Airlines
Deal found 1/28$492
This Mytrip deal was found by Cheapflights users on 1/26. 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.
Tue 3/1712:50 pm
ORD
-
TLL
2 stops17h 00m
Multiple Airlines
Mon 3/305:55 pm
TLL
-
ORD
1 stop34h 00m
Multiple Airlines
Deal found 1/26$493
This oojo deal was found by Cheapflights users on 1/27. 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.
Fri 2/67:20 pm
ORD
-
TLL
1 stop11h 50m
Scandinavian Airlines
Wed 2/116:25 am
TLL
-
ORD
1 stop18h 20m
Scandinavian Airlines
Deal found 1/27$498
This Trip.com deal was found by Cheapflights users on 1/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:15 pm
ORD
-
TLL
1 stop12h 00m
Scandinavian Airlines
Wed 9/3011:20 am
TLL
-
ORD
1 stop12h 50m
Scandinavian Airlines
Deal found 1/28$505
This oojo deal was found by Cheapflights users on 1/27. 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.
Sun 4/269:50 pm
ORD
-
TLL
1 stop31h 50m
LOT
Sun 5/35:45 am
TLL
-
ORD
1 stop22h 05m
LOT
Deal found 1/27$508
This FlightHub deal was found by Cheapflights users on 1/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/123:30 pm
STL
-
TLL
1 stop13h 40m
Lufthansa
Tue 8/256:10 am
TLL
-
STL
1 stop15h 15m
Lufthansa
Deal found 1/27$512
This United Airlines deal was found by Cheapflights users on 1/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/123:30 pm
STL
-
TLL
1 stop13h 40m
United Airlines
Tue 8/251:50 pm
TLL
-
STL
2 stops36h 37m
United Airlines
Deal found 1/27$517
This KLM deal was found by Cheapflights users on 1/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1110:50 am
STL
-
TLL
2 stops18h 25m
KLM
Wed 4/227:30 am
TLL
-
STL
2 stops21h 08m
KLM
Deal found 1/27$568

Find flight deals from Illinois to Estonia

Keep the following information in mind while searching for Illinois to Estonia flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$469
(oojo)

One-way from

$270
(American Airlines)

Popular in

September

Cheapest in

February

Average price

$593
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 Illinois to Estonia
Search Deals
One-way flight from Illinois to Estonia
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois 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 January 29, 2026.
Use the filters below to find and compare flights from Illinois to Estonia that are best for you.

Fly from

Illinois

Fly to

Estonia

Route

Depart

Return

Price

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Thu 2/26

7:20 pm-3:10 pm

1 stop11h 50m

Tallinn

Tue 3/31

8:20 pm-4:20 pm

2 stops28h 00m

$469

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Mon 3/23

8:20 pm-11:40 pm

2 stops20h 20m

Tallinn

Thu 4/2

11:35 am-4:10 pm

2 stops36h 35m

$469

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 3/31

12:50 pm-7:55 pm

2 stops23h 05m

Tallinn

Mon 4/6

1:50 pm-12:55 pm

1 stop31h 05m

$490

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 2/24

2:00 pm-8:05 pm

2 stops22h 05m

Tallinn

Tue 3/3

6:15 am-11:18 am

2 stops37h 03m

$492

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 3/17

12:50 pm-12:50 pm

2 stops17h 00m

Tallinn

Mon 3/30

5:55 pm-7:55 pm

1 stop34h 00m

$493

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 2/24

4:20 pm-4:50 pm

1 stop16h 30m

Tallinn

Tue 3/3

6:15 am-1:10 pm

1 stop14h 55m

$511

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 3/17

4:20 pm-1:10 pm

1 stop13h 50m

Tallinn

Mon 3/30

1:50 pm-11:00 am

1 stop29h 10m

$511

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Mon 3/23

11:35 pm-11:55 pm

1 stop17h 20m

Tallinn

Thu 4/2

1:55 pm-7:55 pm

1 stop14h 00m

$531

St. LouisTallinn

STL - TLL

STLTLL

Lambert-St Louis

Sat 4/11

10:50 am-1:15 pm

2 stops18h 25m

Tallinn

Wed 4/22

7:30 am-8:38 pm

2 stops21h 08m

$568

St. LouisTallinn

STL - TLL

STLTLL

Lambert-St Louis

Wed 4/29

5:59 pm-7:55 pm

2 stops17h 56m

Tallinn

Sat 5/9

7:30 am-11:01 pm

2 stops23h 31m

$568

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 22 results
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Best time to book a flight from Illinois to Estonia

Have a flexible travel schedule? Discover the best time to fly to Estonia from Illinois 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 Illinois to Estonia

What is the cheapest month to book a flight from Illinois to Estonia?

Currently, April is the cheapest month in which you can book a flight from Illinois to Estonia (average of $431). Flying from Illinois 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.

Related info for your journey

Find useful and relevant information for your journey from Illinois 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 Illinois to Estonia?

    A quick flight from Illinois to Estonia can take about 11h 50m. Scandinavian Airlines provides one of the quickest options available for as low as $469. Airlines will cover a distance of 4456 mi. This flight may include one or multiple stops.

  • Can I find deals for flights from Illinois to Estonia that include hotel bookings?

    Yes. In addition to deals on Illinois to Estonia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Estonia?

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

  • Can I find deals for business class flights from Illinois to Estonia?

    Yes. Cheapflights offers flight deals from Illinois 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 Illinois to Estonia?

    Currently, April is the cheapest month in which you can book a flight from Illinois to Estonia (average of $431). Flying from Illinois 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 Illinois 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 Illinois to Estonia

Discover the top 4 airlines that operate flights from Illinois 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$433Average$559FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$486Average$680FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$539Average$848FlexibilityNo cancel feeOn-time76%
FinnairCheapest$678Average$1,024FlexibilityNo cancel feeOn-time76%

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