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Cheap flights from Chicago O'Hare Intl Airport to Estonia from $317

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 11/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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 - 1:30 amORD  Chicago O'Hare Intl-TLL Tallinn
22h 15m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
6:25 am - 5:45 pmTLL  Tallinn-ORD Chicago O'Hare Intl
18h 20m1 stop Kastrup Copenhagen
$657Scandinavian Airlines
Fri, Oct 23 - Sat, Oct 31
Scandinavian Airlines Logo
7:15 pm - 11:50 pmORD  Chicago O'Hare Intl-TLL Tallinn
20h 35m2 stops Kastrup Copenhagen Stockholm Arlanda
Scandinavian Airlines Logo
6:25 am - 5:45 pmTLL  Tallinn-ORD Chicago O'Hare Intl
18h 20m1 stop Kastrup Copenhagen
$663Scandinavian Airlines
Fri, Oct 23 - Sat, Oct 31
Multiple Airlines Logo
10:25 pm - 10:40 amORD  Chicago O'Hare Intl-TLL Tallinn
28h 15m2 stops Reykjavik Keflavik Intl London Heathrow
Multiple Airlines Logo
7:55 am - 5:50 pmTLL  Tallinn-ORD Chicago O'Hare Intl
17h 55m1 stop Helsinki-Vantaa
$663Multiple Airlines
Wed, Sep 16 - Thu, Sep 24
Multiple Airlines Logo
7:25 pm - 7:50 amORD  Chicago O'Hare Intl-TLL Tallinn
28h 25m2 stops Reykjavik Keflavik Intl Stockholm Arlanda
Multiple Airlines Logo
7:55 am - 5:50 pmTLL  Tallinn-ORD Chicago O'Hare Intl
17h 55m1 stop Helsinki-Vantaa
$671Multiple Airlines
Fri, Oct 2 - Mon, Oct 12
United Airlines Logo
7:00 am - 5:10 pmORD  Chicago O'Hare Intl-TLL Tallinn
26h 10m2 stops Newark Frankfurt am Main
United Airlines Logo
6:35 am - 1:10 pmTLL  Tallinn-ORD Chicago O'Hare Intl
14h 35m1 stop Frankfurt am Main
$739United Airlines
Tue, Nov 24 - Thu, Nov 26
United Airlines Logo
1:15 pm - 12:40 amORD  Chicago O'Hare Intl-TLL Tallinn
27h 25m2 stops Washington, D.C. Dulles Intl Frankfurt am Main
United Airlines Logo
1:45 pm - 8:05 pmTLL  Tallinn-ORD Chicago O'Hare Intl
14h 20m1 stop Frankfurt am Main
$739United Airlines
Wed, Nov 25 - Fri, Nov 27
Finnair Logo
9:30 pm - 8:55 pmORD  Chicago O'Hare Intl-TLL Tallinn
15h 25m1 stop Helsinki-Vantaa
Finnair Logo
10:55 am - 5:50 pmTLL  Tallinn-ORD Chicago O'Hare Intl
14h 55m1 stop Helsinki-Vantaa
$742Finnair
Wed, Sep 2 - Wed, Sep 9
Finnair Logo
9:30 pm - 4:55 pmORD  Chicago O'Hare Intl-TLL Tallinn
11h 25m1 stop Helsinki-Vantaa
Finnair Logo
10:55 am - 5:50 pmTLL  Tallinn-ORD Chicago O'Hare Intl
14h 55m1 stop Helsinki-Vantaa
$760Finnair
Thu, Sep 17 - Tue, Sep 29
Lufthansa Logo
4:20 pm - 12:40 amORD  Chicago O'Hare Intl-TLL Tallinn
24h 20m1 stop Frankfurt am Main
Lufthansa Logo
1:45 pm - 8:05 pmTLL  Tallinn-ORD Chicago O'Hare Intl
14h 20m1 stop Frankfurt am Main
$823Lufthansa
Wed, Nov 25 - Fri, Nov 27
Lufthansa Logo
4:20 pm - 1:00 pmORD  Chicago O'Hare Intl-TLL Tallinn
12h 40m1 stop Frankfurt am Main
Lufthansa Logo
6:35 am - 8:05 pmTLL  Tallinn-ORD Chicago O'Hare Intl
21h 30m1 stop Frankfurt am Main
$826Lufthansa
Sat, Nov 21 - Fri, Nov 27

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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
Oct 23
ORD7:15 pmChicago O'Hare Intl
22h 15m
1 stop
TLL1:30 amTallinn
Oct 31
TLL6:25 amTallinn
18h 20m
1 stop
ORD5:45 pmChicago O'Hare Intl
$657
Scandinavian Airlines
Oct 23
ORD7:15 pmChicago O'Hare Intl
20h 35m
2 stops
TLL11:50 pmTallinn
Oct 31
TLL3:40 pmTallinn
33h 05m
2 stops
ORD5:45 pmChicago O'Hare Intl
$665
Scandinavian Airlines
Nov 23
ORD7:15 pmChicago O'Hare Intl
22h 10m
1 stop
TLL1:25 amTallinn
Nov 27
TLL6:25 amTallinn
18h 20m
1 stop
ORD4:45 pmChicago O'Hare Intl
$669

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
Sep 15
ORD11:25 amChicago O'Hare Intl
14h 55m
1 stop
TLL10:20 amTallinn
Sep 22
TLL7:40 pmTallinn
22h 00m
1 stop
ORD9:40 amChicago O'Hare Intl
$700
Turkish Airlines
Nov 19
ORD11:45 amChicago O'Hare Intl
15h 30m
1 stop
TLL11:15 amTallinn
Nov 26
TLL6:55 pmTallinn
23h 05m
1 stop
ORD10:00 amChicago O'Hare Intl
$731
Turkish Airlines
Nov 11
ORD11:45 amChicago O'Hare Intl
29h 25m
2 stops
TAY1:10 amTartu
Nov 15
TAY2:15 pmTartu
60h 05m
2 stops
ORD6:20 pmChicago O'Hare Intl
$1,026

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 August 7, 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 Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Fri 10/23

7:15 pm-1:30 am

1 stop22h 15m

Tallinn

Sat 10/31

6:25 am-5:45 pm

1 stop18h 20m

$657

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Fri 10/23

7:15 pm-11:50 pm

2 stops20h 35m

Tallinn

Sat 10/31

6:25 am-5:45 pm

1 stop18h 20m

$663

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Wed 9/16

10:25 pm-10:40 am

2 stops28h 15m

Tallinn

Thu 9/24

7:55 am-5:50 pm

1 stop17h 55m

$663

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Fri 10/2

7:25 pm-7:50 am

2 stops28h 25m

Tallinn

Mon 10/12

7:55 am-5:50 pm

1 stop17h 55m

$671

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Tue 11/24

7:00 am-5:10 pm

2 stops26h 10m

Tallinn

Thu 11/26

6:35 am-1:10 pm

1 stop14h 35m

$739

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Wed 11/25

1:15 pm-12:40 am

2 stops27h 25m

Tallinn

Fri 11/27

1:45 pm-8:05 pm

1 stop14h 20m

$739

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Wed 9/2

9:30 pm-8:55 pm

1 stop15h 25m

Tallinn

Wed 9/9

10:55 am-5:50 pm

1 stop14h 55m

$742
Quickest round-trip

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Thu 9/17

9:30 pm-4:55 pm

1 stop11h 25m

Tallinn

Tue 9/29

10:55 am-5:50 pm

1 stop14h 55m

$760

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Wed 11/25

4:20 pm-12:40 am

1 stop24h 20m

Tallinn

Fri 11/27

1:45 pm-8:05 pm

1 stop14h 20m

$823

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Sat 11/21

4:20 pm-1:00 pm

1 stop12h 40m

Tallinn

Fri 11/27

6:35 am-8:05 pm

1 stop21h 30m

$826

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 $445, 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 April is your next best option. Flight prices from Chicago O'Hare Intl Airport to Estonia during April average around $472.

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

12h 00m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Estonia takes 12h 00m
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.
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Frequently asked questions about flying from Chicago O'Hare Intl Airport to Estonia

  • 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 $434Free CancellationRating
7.4
1,929 reviews
Search Scandinavian Airlines flights
United AirlinesPriceFrom $486Free CancellationRating
7.4
10,085 reviews
Search United Airlines flights
LufthansaPriceFrom $486Free CancellationRating
6.8
8,177 reviews
Search Lufthansa flights
FinnairPriceFrom $785Free CancellationRating
7.7
1,427 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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