What is the cheapest airline that flies from Chicago to Estonia?

Air Canada, Scandinavian Airlines, and Finnair are the most popular carriers operating from Chicago to Estonia

What airlines fly to Estonia?

Scandinavian Airlines, United Airlines and Finnair are the top three most popular airlines that fly to Estonia from Chicago according to our data. Scandinavian Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Estonia. Keep in mind that there are 4 different airlines that fly to Estonia on a routine basis, so you have a few additional options to choose from.

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?

The number of operators available for flights from Chicago to Estonia is 4 as of August 2026.

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.

$326 Cheap Flights from Chicago to Estonia in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chicago to Estonia

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:15 pm - 1:30 amORD Chicago O'Hare Intl-TLL Tallinn

22h 15m1 stop Kastrup Copenhagen

7:00 am - 4:10 pmTLL Tallinn-ORD Chicago O'Hare Intl

17h 10m2 stops Stockholm Arlanda Kastrup Copenhagen

$639Scandinavian Airlines

Mon, Oct 5 - Mon, Oct 19

7:15 pm - 11:10 pmORD Chicago O'Hare Intl-TLL Tallinn

19h 55m2 stops Kastrup Copenhagen Stockholm Arlanda

5:45 pm - 4:10 pmTLL Tallinn-ORD Chicago O'Hare Intl

30h 25m2 stops Stockholm Arlanda Kastrup Copenhagen

$642Multiple Airlines

Tue, Oct 6 - Tue, Oct 13

7:15 pm - 11:50 pmORD Chicago O'Hare Intl-TLL Tallinn

20h 35m2 stops Kastrup Copenhagen Stockholm Arlanda

6:15 am - 4:10 pmTLL Tallinn-ORD Chicago O'Hare Intl

17h 55m1 stop Kastrup Copenhagen

$647Scandinavian Airlines

Wed, Oct 7 - Wed, Oct 14

7:15 pm - 1:25 amORD Chicago O'Hare Intl-TLL Tallinn

22h 10m1 stop Kastrup Copenhagen

11:10 am - 4:45 pmTLL Tallinn-ORD Chicago O'Hare Intl

13h 35m1 stop Kastrup Copenhagen

$650Scandinavian Airlines

Sun, Jan 24 - Thu, Jan 28

3:50 pm - 11:00 amORD Chicago O'Hare Intl-TLL Tallinn

59h 10m2 stops Orlando London Gatwick

12:50 pm - 5:50 pmTLL Tallinn-ORD Chicago O'Hare Intl

13h 00m1 stop Helsinki-Vantaa

$661Multiple Airlines

Fri, Oct 2 - Thu, Oct 15

7:25 pm - 12:40 amORD Chicago O'Hare Intl-TLL Tallinn

21h 15m3 stops Reykjavik Keflavik Intl Kastrup Copenhagen Riga Intl

12:50 pm - 5:50 pmTLL Tallinn-ORD Chicago O'Hare Intl

13h 00m1 stop Helsinki-Vantaa

$671Multiple Airlines

Fri, Oct 2 - Thu, Oct 15

9:30 pm - 8:55 pmORD Chicago O'Hare Intl-TLL Tallinn

15h 25m1 stop Helsinki-Vantaa

12:50 pm - 5:50 pmTLL Tallinn-ORD Chicago O'Hare Intl

13h 00m1 stop Helsinki-Vantaa

$754Finnair

Fri, Oct 2 - Thu, Oct 15

10:25 pm - 10:50 pmORD Chicago O'Hare Intl-TLL Tallinn

16h 25m2 stops London Heathrow Helsinki-Vantaa

6:00 am - 2:55 pmTLL Tallinn-ORD Chicago O'Hare Intl

16h 55m2 stops Helsinki-Vantaa London Heathrow

$811Finnair

Wed, Sep 23 - Wed, Sep 30

7:13 am - 5:10 pmORD Chicago O'Hare Intl-TLL Tallinn

25h 57m3 stops Cleveland Hopkins Intl Orlando Frankfurt am Main

5:55 pm - 6:27 pmTLL Tallinn-ORD Chicago O'Hare Intl

32h 32m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl

$913United Airlines

Wed, Dec 16 - Wed, Jan 6

7:05 pm - 12:40 amORD Chicago O'Hare Intl-TAY Tartu

21h 35m2 stops London Heathrow Helsinki-Vantaa

5:40 am - 5:50 pmTAY Tartu-ORD Chicago O'Hare Intl

20h 10m1 stop Helsinki-Vantaa

$915Finnair

Wed, Oct 7 - Wed, Oct 14

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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 5

ORD7:15 pmChicago O'Hare Intl

22h 15m

1 stop

TLL1:30 amTallinn

Oct 19

TLL7:00 amTallinn

17h 10m

2 stops

ORD4:10 pmChicago O'Hare Intl

$639

Scandinavian Airlines

Oct 7

ORD7:15 pmChicago O'Hare Intl

20h 35m

2 stops

TLL11:50 pmTallinn

Oct 14

TLL6:15 amTallinn

17h 55m

1 stop

ORD4:10 pmChicago O'Hare Intl

$647

Scandinavian Airlines

Dec 7

ORD7:15 pmChicago O'Hare Intl

22h 10m

1 stop

TLL1:25 amTallinn

Dec 14

TLL6:25 amTallinn

18h 20m

1 stop

ORD4:45 pmChicago O'Hare Intl

$650

KLM flights from Chicago to Estonia

Our best KLM deals on Chicago to Estonia flight tickets

KLM

Sep 1

ORD4:15 pmChicago O'Hare Intl

19h 40m

1 stop

TLL7:55 pmTallinn

Sep 6

TLL7:30 amTallinn

16h 47m

2 stops

ORD4:17 pmChicago O'Hare Intl

$934

KLM

Sep 1

ORD1:00 pmChicago O'Hare Intl

16h 15m

2 stops

TLL1:15 pmTallinn

Sep 6

TLL7:30 amTallinn

16h 47m

2 stops

ORD4:17 pmChicago O'Hare Intl

$937

KLM

Sep 2

ORD4:50 pmChicago O'Hare Intl

12h 25m

1 stop

TLL1:15 pmTallinn

Sep 6

TLL7:30 amTallinn

14h 45m

1 stop

ORD2:15 pmChicago O'Hare Intl

$939

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Mon 10/5

7:15 pm-1:30 am

1 stop22h 15m

Tallinn

Mon 10/19

7:00 am-4:10 pm

2 stops17h 10m

$639

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Tue 10/6

7:15 pm-11:10 pm

2 stops19h 55m

Tallinn

Tue 10/13

5:45 pm-4:10 pm

2 stops30h 25m

$642

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Wed 10/7

7:15 pm-11:50 pm

2 stops20h 35m

Tallinn

Wed 10/14

6:15 am-4:10 pm

1 stop17h 55m

$647

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Sun 1/24

7:15 pm-1:25 am

1 stop22h 10m

Tallinn

Thu 1/28

11:10 am-4:45 pm

1 stop13h 35m

$650

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Fri 10/2

3:50 pm-11:00 am

2 stops59h 10m

Tallinn

Thu 10/15

12:50 pm-5:50 pm

1 stop13h 00m

$661

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Fri 10/2

7:25 pm-12:40 am

3 stops21h 15m

Tallinn

Thu 10/15

12:50 pm-5:50 pm

1 stop13h 00m

$671

Quickest round-trip

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Fri 10/2

9:30 pm-8:55 pm

1 stop15h 25m

Tallinn

Thu 10/15

12:50 pm-5:50 pm

1 stop13h 00m

$754

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Wed 9/23

10:25 pm-10:50 pm

2 stops16h 25m

Tallinn

Wed 9/30

6:00 am-2:55 pm

2 stops16h 55m

$811

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Wed 12/16

7:13 am-5:10 pm

3 stops25h 57m

Tallinn

Wed 1/6

5:55 pm-6:27 pm

2 stops32h 32m

$913

ChicagoTartu

ORD Chicago O'Hare Intl - TAY Tartu

ORDTAY

Chicago O'Hare Intl

Wed 10/7

7:05 pm-12:40 am

2 stops21h 35m

Tartu

Wed 10/14

5:40 am-5:50 pm

1 stop20h 10m

$915

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest month to fly to Estonia?

The cheapest month to fly to Estonia from Chicago is in April. Flight prices, which tend to average around $489, are often lower during this time because this is during the off-season. If you’re not able to fly to Estonia in April, then March is your next best option. Flight prices from Chicago to Estonia during March average around $492.

Can stopping save me money on Chicago to Estonia flights?

You could potentially save up to 8% 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

Best Price Found	$326
Fastest flight time	11h 55m
Direct flights	None

The best one-way flight to Estonia from Chicago in the past 72 hours is $326. The best round-trip flight deal from Chicago to Estonia found on momondo in the last 72 hours is $639.

The fastest flight from Chicago to Estonia takes 11h 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?
The number of operators available for flights from Chicago to Estonia is 4 as of August 2026.
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 Airlines	PriceFrom $437	Free Cancellation	Rating 7.4 1,965 reviews	Search Scandinavian Airlines flights
United Airlines	PriceFrom $486	Free Cancellation	Rating 7.4 10,123 reviews	Search United Airlines flights
Lufthansa	PriceFrom $486	Free Cancellation	Rating 6.8 8,223 reviews	Search Lufthansa flights
Finnair	PriceFrom $785	Free Cancellation	Rating 7.6 1,433 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.

An easier way to manage your Estonia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Flights to Tallinnfrom $575

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Cheap flights from Chicago to Estonia from $326

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 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.

Find the cheapest flights from Chicago to Estonia

Cheap round-trip flights

Cheap one-way flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

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Scandinavian Airlines flights from Chicago to Estonia

Our best Scandinavian Airlines deals on Chicago to Estonia flight tickets

KLM flights from Chicago to Estonia

Our best KLM deals on Chicago to Estonia flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Chicago to Estonia that are best for you.

See travel insights to Estonia from

How to get the cheapest flight ticket from Chicago to Estonia

What is the cheapest month to fly to Estonia?

Can stopping save me money on Chicago to Estonia flights?

What is the cheapest airline that flies from Chicago to Estonia?

What airlines fly to Estonia?

Cheap Chicago to Estonia flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Chicago to Estonia

Best airlines flying from Chicago to Estonia

Compare and see reviews for airlines that fly from Chicago to Estonia with momondo

Why use momondo?

An easier way to manage your Estonia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Estonia

Popular cities in Estonia

Popular flights according to clicks in the last 7 days on momondo

Chicago flight routes

According to popular flight searches on momondo this year

Estonia flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Estonia

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Estonia

List of cabin classes available on flights landing in Estonia. Availability may vary depending on flight origin and airline.

Complete your trip to Estonia

Explore popular destinations other users love

According to popular flight searches on momondo this year