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Cheap flights from Chicago O'Hare Intl Airport to Estonia from $375

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Estonia departing on 7/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago O'Hare Intl Airport to Estonia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
7:15 pm - 10:45 am
ORD
-
TLL
31h 30m
1 stop
Scandinavian Airlines Logo
7:00 am - 4:10 pm
TLL
-
ORD
17h 10m
2 stops
$435Scandinavian Airlines
Fri, May 1 - Fri, May 8
Scandinavian Airlines Logo
7:15 pm - 10:45 am
ORD
-
TLL
31h 30m
1 stop
Scandinavian Airlines Logo
6:15 am - 4:10 pm
TLL
-
ORD
17h 55m
1 stop
$521Scandinavian Airlines
Fri, May 1 - Fri, May 8
Turkish Airlines Logo
8:10 pm - 10:20 am
ORD
-
TLL
30h 10m
1 stop
Turkish Airlines Logo
7:35 pm - 6:15 pm
TLL
-
ORD
30h 40m
1 stop
$532Turkish Airlines
Tue, Apr 28 - Tue, May 5
Turkish Airlines Logo
11:25 am - 10:20 am
ORD
-
TLL
14h 55m
1 stop
Turkish Airlines Logo
7:35 pm - 6:15 pm
TLL
-
ORD
30h 40m
1 stop
$533Turkish Airlines
Tue, Apr 28 - Tue, May 5
Turkish Airlines Logo
11:25 am - 10:20 am
ORD
-
TLL
14h 55m
1 stop
Turkish Airlines Logo
11:15 am - 9:40 am
TLL
-
ORD
30h 25m
1 stop
$543Turkish Airlines
Sun, Apr 26 - Sun, May 3
Scandinavian Airlines Logo
7:15 pm - 1:30 am
ORD
-
TLL
22h 15m
1 stop
Scandinavian Airlines Logo
3:50 pm - 4:10 pm
TLL
-
ORD
32h 20m
1 stop
$567Scandinavian Airlines
Sun, Aug 16 - Sun, Aug 30
Scandinavian Airlines Logo
7:15 pm - 1:30 am
ORD
-
TLL
22h 15m
1 stop
Scandinavian Airlines Logo
8:50 pm - 4:10 pm
TLL
-
ORD
27h 20m
2 stops
$568Scandinavian Airlines
Sun, Aug 16 - Sun, Aug 30
Finnair Logo
9:15 pm - 12:40 am
ORD
-
TAY
19h 25m
2 stops
Finnair Logo
5:40 am - 12:25 pm
TAY
-
ORD
38h 45m
2 stops
$886Finnair
Mon, May 4 - Mon, May 11
Finnair Logo
9:30 pm - 12:40 am
ORD
-
TAY
19h 10m
1 stop
Finnair Logo
3:00 pm - 1:50 pm
TAY
-
ORD
30h 50m
2 stops
$890Finnair
Mon, May 4 - Mon, May 11
Finnair Logo
9:30 pm - 12:40 am
ORD
-
TAY
19h 10m
1 stop
Finnair Logo
5:40 am - 5:50 pm
TAY
-
ORD
20h 10m
1 stop
$901Finnair
Mon, May 4 - Mon, May 11

Turkish Airlines flights from Chicago O'Hare Intl Airport to Estonia

Our best Turkish Airlines deals on Chicago O'Hare Intl Airport to Estonia flight tickets
Turkish Airlines
Apr 28
ORD8:10 pmChicago O'Hare Intl
30h 10m
1 stop
TLL10:20 amTallinn
May 5
TLL7:35 pmTallinn
30h 40m
1 stop
ORD6:15 pmChicago O'Hare Intl
$532
Turkish Airlines
Apr 28
ORD11:25 amChicago O'Hare Intl
14h 55m
1 stop
TLL10:20 amTallinn
May 5
TLL7:35 pmTallinn
30h 40m
1 stop
ORD6:15 pmChicago O'Hare Intl
$533
Turkish Airlines
Apr 26
ORD11:25 amChicago O'Hare Intl
14h 55m
1 stop
TLL10:20 amTallinn
May 3
TLL11:15 amTallinn
30h 25m
1 stop
ORD9:40 amChicago O'Hare Intl
$543

Scandinavian Airlines flights from Chicago O'Hare Intl Airport to Estonia

Our best Scandinavian Airlines deals on Chicago O'Hare Intl Airport to Estonia flight tickets
Scandinavian Airlines
May 1
ORD7:15 pmChicago O'Hare Intl
30h 55m
2 stops
TLL10:10 amTallinn
May 8
TLL4:00 pmTallinn
32h 10m
2 stops
ORD4:10 pmChicago O'Hare Intl
$435
Scandinavian Airlines
May 1
ORD7:15 pmChicago O'Hare Intl
31h 30m
1 stop
TLL10:45 amTallinn
May 8
TLL6:15 amTallinn
17h 55m
1 stop
ORD4:10 pmChicago O'Hare Intl
$521
Scandinavian Airlines
Aug 16
ORD7:15 pmChicago O'Hare Intl
22h 15m
1 stop
TLL1:30 amTallinn
Aug 30
TLL3:50 pmTallinn
32h 20m
1 stop
ORD4:10 pmChicago O'Hare Intl
$567

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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, momondo users made 832,500 searches. Data last updated March 20, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Estonia 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 5/1

7:15 pm-10:45 am

1 stop31h 30m

Tallinn

Fri 5/8

7:00 am-4:10 pm

2 stops17h 10m

$435

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Fri 5/1

7:15 pm-10:45 am

1 stop31h 30m

Tallinn

Fri 5/8

6:15 am-4:10 pm

1 stop17h 55m

$521

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 4/28

8:10 pm-10:20 am

1 stop30h 10m

Tallinn

Tue 5/5

7:35 pm-6:15 pm

1 stop30h 40m

$532

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 4/28

11:25 am-10:20 am

1 stop14h 55m

Tallinn

Tue 5/5

7:35 pm-6:15 pm

1 stop30h 40m

$533

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Sun 4/26

11:25 am-10:20 am

1 stop14h 55m

Tallinn

Sun 5/3

11:15 am-9:40 am

1 stop30h 25m

$543

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Sun 8/16

7:15 pm-1:30 am

1 stop22h 15m

Tallinn

Sun 8/30

3:50 pm-4:10 pm

1 stop32h 20m

$567

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Sun 8/16

7:15 pm-1:30 am

1 stop22h 15m

Tallinn

Sun 8/30

8:50 pm-4:10 pm

2 stops27h 20m

$568

ChicagoTartu

ORD - TAY

ORDTAY

Chicago O'Hare Intl

Mon 5/4

9:15 pm-12:40 am

2 stops19h 25m

Tartu

Mon 5/11

5:40 am-12:25 pm

2 stops38h 45m

$886

ChicagoTartu

ORD - TAY

ORDTAY

Chicago O'Hare Intl

Mon 5/4

9:30 pm-12:40 am

1 stop19h 10m

Tartu

Mon 5/11

3:00 pm-1:50 pm

2 stops30h 50m

$890
Quickest round-trip

ChicagoTartu

ORD - TAY

ORDTAY

Chicago O'Hare Intl

Mon 5/4

9:30 pm-12:40 am

1 stop19h 10m

Tartu

Mon 5/11

5:40 am-5:50 pm

1 stop20h 10m

$901

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Estonia from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Estonia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Estonia?

The cheapest month to fly to Estonia from Chicago O'Hare Intl Airport is in January. Flight prices, which tend to average around $440, are often lower during this time because this is during the off-season. If you’re not able to fly to Estonia in January, then March is your next best option. Flight prices from Chicago O'Hare Intl Airport to Estonia during March average around $495.

Cheap Chicago O'Hare Intl Airport to Estonia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Estonia

Fastest flight time

11h 50m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Estonia takes 11h 50m
There are no direct flights from Chicago O'Hare Intl Airport to Estonia. There are no popular flight routes from Chicago O'Hare Intl Airport to Estonia.
Search flight deals

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Estonia?

    Prices for flights from Chicago O'Hare Intl Airport to Estonia were last updated today.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Estonia?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Estonia?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport to Estonia.

  • What documentation or ID do you need to fly to Estonia?

    The required travel and health documents for your Estonia trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Estonia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Chicago O'Hare Intl Airport to Estonia

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Estonia with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $433Free CancellationRating
7.3
1,720 reviews
Search Scandinavian Airlines flights
United AirlinesPriceFrom $486Free CancellationRating
7.4
9,448 reviews
Search United Airlines flights
LufthansaPriceFrom $492Free CancellationRating
6.8
7,858 reviews
Search Lufthansa flights
FinnairPriceFrom $678Free CancellationRating
7.7
1,374 reviews
Search Finnair flights

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Estonia?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Estonia from Chicago.

Can I find flights from Chicago to Estonia with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Chicago to Estonia flights to just show those with flexible booking policies.

How can momondo help me find flights from Chicago to Estonia?

momondo provides multiple filters to help you find the best flight to Estonia from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Chicago to Estonia right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Chicago to Estonia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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