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Cheap flights from Chicago to Estonia from $303

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 to Estonia departing on 12/7. 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 to Estonia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:25 pm - 9:35 pmORD  Chicago O'Hare Intl-TLL Tallinn
18h 10m2 stops Reykjavik Keflavik Intl Berlin Brandenburg
Multiple Airlines Logo
10:55 am - 5:50 pmTLL  Tallinn-ORD Chicago O'Hare Intl
14h 55m1 stop Helsinki-Vantaa
$635Multiple Airlines
Fri, Oct 2 - Thu, Oct 15
Scandinavian Airlines Logo
7:15 pm - 1:30 amORD  Chicago O'Hare Intl-TLL Tallinn
22h 15m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
6:15 am - 4:10 pmTLL  Tallinn-ORD Chicago O'Hare Intl
17h 55m1 stop Kastrup Copenhagen
$657Scandinavian Airlines
Fri, Oct 2 - Thu, Oct 15
Finnair Logo
6:50 pm - 8:45 pmORD  Chicago O'Hare Intl-TLL Tallinn
17h 55m2 stops London Heathrow Helsinki-Vantaa
Finnair Logo
5:50 am - 8:03 pmTLL  Tallinn-ORD Chicago O'Hare Intl
22h 13m2 stops Helsinki-Vantaa Dallas/Fort Worth
$661Finnair
Wed, Nov 18 - Mon, Nov 23
Multiple Airlines Logo
7:25 pm - 5:20 pmORD  Chicago O'Hare Intl-TLL Tallinn
13h 55m2 stops Reykjavik Keflavik Intl Stockholm Arlanda
Multiple Airlines Logo
3:00 pm - 5:50 pmTLL  Tallinn-ORD Chicago O'Hare Intl
10h 50m1 stop Helsinki-Vantaa
$662Multiple Airlines
Mon, Oct 19 - Wed, Oct 21
Scandinavian Airlines Logo
7:15 pm - 3:20 pmORD  Chicago O'Hare Intl-TLL Tallinn
12h 05m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
11:00 am - 4:45 pmTLL  Tallinn-ORD Chicago O'Hare Intl
13h 45m2 stops Stockholm Arlanda Kastrup Copenhagen
$664Scandinavian Airlines
Wed, Nov 18 - Mon, Nov 23
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
4:00 pm - 4:10 pmTLL  Tallinn-ORD Chicago O'Hare Intl
32h 10m2 stops Stockholm Arlanda Kastrup Copenhagen
$667Scandinavian Airlines
Fri, Oct 2 - Thu, Oct 15
Multiple Airlines Logo
10:25 pm - 11:30 pmORD  Chicago O'Hare Intl-TLL Tallinn
17h 05m2 stops Reykjavik Keflavik Intl Stockholm Arlanda
Multiple Airlines Logo
3:00 pm - 5:50 pmTLL  Tallinn-ORD Chicago O'Hare Intl
10h 50m1 stop Helsinki-Vantaa
$671Multiple Airlines
Fri, Oct 16 - Wed, Oct 21
Finnair Logo
9:30 pm - 4:15 pmORD  Chicago O'Hare Intl-TLL Tallinn
10h 45m1 stop Helsinki-Vantaa
Finnair Logo
10:55 am - 5:50 pmTLL  Tallinn-ORD Chicago O'Hare Intl
14h 55m1 stop Helsinki-Vantaa
$752Finnair
Thu, Sep 17 - Tue, Oct 6
Lufthansa Logo
10:30 pm - 12:35 amORD  Chicago O'Hare Intl-TLL Tallinn
18h 05m1 stop Frankfurt am Main
Lufthansa Logo
5:55 pm - 12:55 pmTLL  Tallinn-ORD Chicago O'Hare Intl
27h 00m1 stop Frankfurt am Main
$920Lufthansa
Mon, Aug 24 - Mon, Sep 14
Lufthansa Logo
5:53 pm - 7:55 pmORD  Chicago O'Hare Intl-TLL Tallinn
18h 02m2 stops Toronto Pearson Intl Amsterdam Schiphol
Lufthansa Logo
7:30 am - 8:12 pmTLL  Tallinn-ORD Chicago O'Hare Intl
20h 42m2 stops Amsterdam Schiphol Montreal Pierre Elliott Trudeau Intl
$920Lufthansa
Fri, Oct 16 - Thu, Oct 22

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Scandinavian Airlines flights from Chicago to Estonia

Our best Scandinavian Airlines deals on Chicago to Estonia flight tickets
Scandinavian Airlines
Oct 2
ORD7:15 pmChicago O'Hare Intl
22h 15m
1 stop
TLL1:30 amTallinn
Oct 15
TLL6:15 amTallinn
17h 55m
1 stop
ORD4:10 pmChicago O'Hare Intl
$657
Scandinavian Airlines
Nov 18
ORD7:15 pmChicago O'Hare Intl
12h 05m
1 stop
TLL3:20 pmTallinn
Nov 23
TLL11:00 amTallinn
13h 45m
2 stops
ORD4:45 pmChicago O'Hare Intl
$664
Scandinavian Airlines
Oct 2
ORD7:15 pmChicago O'Hare Intl
20h 35m
2 stops
TLL11:50 pmTallinn
Oct 15
TLL4:00 pmTallinn
32h 10m
2 stops
ORD4:10 pmChicago O'Hare Intl
$667

Finnair flights from Chicago to Estonia

Our best Finnair deals on Chicago to Estonia flight tickets
Finnair
Nov 18
ORD6:50 pmChicago O'Hare Intl
17h 55m
2 stops
TLL8:45 pmTallinn
Nov 23
TLL5:50 amTallinn
22h 13m
2 stops
ORD8:03 pmChicago O'Hare Intl
$661
Finnair
Oct 31
ORD9:25 pmChicago O'Hare Intl
20h 45m
2 stops
TAY1:10 amTartu
Nov 8
TAY2:15 pmTartu
16h 15m
2 stops
ORD10:30 pmChicago O'Hare Intl
$993

momondo Fare Finder

 
Customize your flight search to find flights from Chicago 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 11, 2026.
Use the filters below to find and compare flights from Chicago 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 10/2

7:25 pm-9:35 pm

2 stops18h 10m

Tallinn

Thu 10/15

10:55 am-5:50 pm

1 stop14h 55m

$635

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Fri 10/2

7:15 pm-1:30 am

1 stop22h 15m

Tallinn

Thu 10/15

6:15 am-4:10 pm

1 stop17h 55m

$657

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Wed 11/18

6:50 pm-8:45 pm

2 stops17h 55m

Tallinn

Mon 11/23

5:50 am-8:03 pm

2 stops22h 13m

$661
Quickest round-trip

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Mon 10/19

7:25 pm-5:20 pm

2 stops13h 55m

Tallinn

Wed 10/21

3:00 pm-5:50 pm

1 stop10h 50m

$662

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Wed 11/18

7:15 pm-3:20 pm

1 stop12h 05m

Tallinn

Mon 11/23

11:00 am-4:45 pm

2 stops13h 45m

$664

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Fri 10/2

7:15 pm-11:50 pm

2 stops20h 35m

Tallinn

Thu 10/15

4:00 pm-4:10 pm

2 stops32h 10m

$667

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Fri 10/16

10:25 pm-11:30 pm

2 stops17h 05m

Tallinn

Wed 10/21

3:00 pm-5:50 pm

1 stop10h 50m

$671

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Thu 9/17

9:30 pm-4:15 pm

1 stop10h 45m

Tallinn

Tue 10/6

10:55 am-5:50 pm

1 stop14h 55m

$752

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Mon 8/24

10:30 pm-12:35 am

1 stop18h 05m

Tallinn

Mon 9/14

5:55 pm-12:55 pm

1 stop27h 00m

$920

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Fri 10/16

5:53 pm-7:55 pm

2 stops18h 02m

Tallinn

Thu 10/22

7:30 am-8:12 pm

2 stops20h 42m

$920

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 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 is in March. Flight prices, which tend to average around $492, are often lower during this time because this is during the off-season. If you’re not able to fly to Estonia in March, then April is your next best option. Flight prices from Chicago to Estonia during April average around $496.

Can stopping save me money on Chicago to Estonia flights?

You could potentially save up to 51% on your flight if you consider stops on a Chicago to Estonia flight.

Cheap Chicago to Estonia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Estonia

Fastest flight time

15h 55m

Direct flights

None
The fastest flight from Chicago to Estonia takes 15h 55m
There are no direct flights from Chicago to Estonia. There are no popular flight routes from Chicago to Estonia.
Search flight deals

Frequently asked questions about flying from Chicago to Estonia

  • When did momondo last update prices for flights from Chicago to Estonia?

    Prices for flights from Chicago to Estonia refresh daily.

  • How many operators does momondo search for flights from Chicago to Estonia?

  • How old do you have to be to fly from Chicago to Estonia?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Chicago to Estonia.

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

    The travel and health documents you'll need for your trip to Estonia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Estonia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Chicago to Estonia

Compare and see reviews for airlines that fly from Chicago to Estonia with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $434Free CancellationRating
7.4
1,941 reviews
Search Scandinavian Airlines flights
United AirlinesPriceFrom $486Free CancellationRating
7.4
10,104 reviews
Search United Airlines flights
LufthansaPriceFrom $486Free CancellationRating
6.8
8,180 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?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Estonia. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to Estonia from Chicago with this policy.

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

Once you have performed a search for Chicago to Estonia flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Estonia, momondo offers a useful price alert feature which will track prices for flights to Estonia from Chicago and alert you when they change.

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