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

KLM is the most popular carrier 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 43% 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 September 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.

$358 Cheap Flights from Chicago to Estonia in 2026/27

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.

9:30 pm - 12:50 amORD Chicago O'Hare Intl-TLL Tallinn

19h 20m1 stop Helsinki-Vantaa

6:00 am - 5:50 pmTLL Tallinn-ORD Chicago O'Hare Intl

19h 50m1 stop Helsinki-Vantaa

$583British Airways

Mon, Oct 5 - Wed, Oct 21

9:30 pm - 12:50 amORD Chicago O'Hare Intl-TLL Tallinn

19h 20m1 stop Helsinki-Vantaa

4:10 pm - 5:50 pmTLL Tallinn-ORD Chicago O'Hare Intl

33h 40m1 stop Helsinki-Vantaa

$588British Airways

Mon, Oct 5 - Mon, Oct 12

6:35 pm - 8:45 pmORD Chicago O'Hare Intl-TLL Tallinn

18h 10m2 stops London Heathrow Helsinki-Vantaa

5:50 am - 7:59 pmTLL Tallinn-ORD Chicago O'Hare Intl

22h 09m2 stops Helsinki-Vantaa Dallas/Fort Worth

$591Finnair

Tue, Nov 3 - Tue, Feb 9

6:50 pm - 4:55 pmORD Chicago O'Hare Intl-TLL Tallinn

14h 05m2 stops London Heathrow Helsinki-Vantaa

8:05 am - 8:30 pmTLL Tallinn-ORD Chicago O'Hare Intl

20h 25m2 stops Helsinki-Vantaa Dallas/Fort Worth

$596Finnair

Tue, Feb 2 - Tue, Mar 2

4:20 pm - 5:10 pmORD Chicago O'Hare Intl-TLL Tallinn

16h 50m1 stop Frankfurt am Main

6:35 am - 1:10 pmTLL Tallinn-ORD Chicago O'Hare Intl

14h 35m1 stop Frankfurt am Main

$640Lufthansa

Tue, Feb 2 - Tue, Mar 2

7:15 pm - 10:30 amORD Chicago O'Hare Intl-TLL Tallinn

31h 15m1 stop Kastrup Copenhagen

6:25 am - 4:45 pmTLL Tallinn-ORD Chicago O'Hare Intl

18h 20m1 stop Kastrup Copenhagen

$653Scandinavian Airlines

Fri, Nov 6 - Tue, Nov 17

7:15 pm - 10:30 amORD Chicago O'Hare Intl-TLL Tallinn

31h 15m1 stop Kastrup Copenhagen

6:25 am - 4:45 pmTLL Tallinn-ORD Chicago O'Hare Intl

18h 20m1 stop Kastrup Copenhagen

$653Scandinavian Airlines

Fri, Nov 6 - Mon, Nov 16

11:35 pm - 12:40 amORD Chicago O'Hare Intl-TLL Tallinn

18h 05m1 stop Frankfurt am Main

5:55 pm - 1:10 pmTLL Tallinn-ORD Chicago O'Hare Intl

27h 15m1 stop Frankfurt am Main

$653Lufthansa

Mon, Oct 26 - Mon, Nov 2

3:29 pm - 1:00 pmORD Chicago O'Hare Intl-TLL Tallinn

37h 31m2 stops Newark Frankfurt am Main

6:35 am - 3:20 pmTLL Tallinn-ORD Chicago O'Hare Intl

16h 45m1 stop Frankfurt am Main

$699United Airlines

Sat, Jan 16 - Sat, Jan 30

9:00 am - 1:00 pmORD Chicago O'Hare Intl-TLL Tallinn

20h 00m2 stops Philadelphia Frankfurt am Main

1:45 pm - 1:10 pmTLL Tallinn-ORD Chicago O'Hare Intl

31h 25m1 stop Frankfurt am Main

$702United Airlines

Thu, Dec 10 - Mon, Dec 21

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Finnair flights from Chicago to Estonia

Our best Finnair deals on Chicago to Estonia flight tickets

Finnair

Feb 2

ORD6:50 pmChicago O'Hare Intl

14h 05m

2 stops

TLL4:55 pmTallinn

Mar 2

TLL8:05 amTallinn

20h 25m

2 stops

ORD8:30 pmChicago O'Hare Intl

$596

Finnair

Oct 26

ORD10:50 pmChicago O'Hare Intl

18h 35m

2 stops

TLL12:25 amTallinn

Nov 2

TLL10:40 pmTallinn

24h 50m

2 stops

ORD3:30 pmChicago O'Hare Intl

$601

Finnair

Oct 26

ORD10:25 pmChicago O'Hare Intl

19h 00m

1 stop

TLL12:25 amTallinn

Nov 2

TLL10:40 pmTallinn

24h 50m

2 stops

ORD3:30 pmChicago O'Hare Intl

$603

Lufthansa flights from Chicago to Estonia

Our best Lufthansa deals on Chicago to Estonia flight tickets

Lufthansa

Feb 2

ORD4:20 pmChicago O'Hare Intl

16h 50m

1 stop

TLL5:10 pmTallinn

Mar 2

TLL6:35 amTallinn

14h 35m

1 stop

ORD1:10 pmChicago O'Hare Intl

$640

Lufthansa

Dec 2

ORD10:35 pmChicago O'Hare Intl

18h 05m

1 stop

TLL12:40 amTallinn

Dec 6

TLL6:35 amTallinn

14h 35m

1 stop

ORD1:10 pmChicago O'Hare Intl

$669

Lufthansa

Oct 9

ORD4:05 pmChicago O'Hare Intl

13h 05m

1 stop

TLL1:10 pmTallinn

Oct 12

TLL5:55 pmTallinn

27h 00m

1 stop

ORD12:55 pmChicago O'Hare Intl

$718

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

9:30 pm-12:50 am

1 stop19h 20m

Tallinn

Wed 10/21

6:00 am-5:50 pm

1 stop19h 50m

$583

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Mon 10/5

9:30 pm-12:50 am

1 stop19h 20m

Tallinn

Mon 10/12

4:10 pm-5:50 pm

1 stop33h 40m

$588

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Tue 11/3

6:35 pm-8:45 pm

2 stops18h 10m

Tallinn

Tue 2/9

5:50 am-7:59 pm

2 stops22h 09m

$591

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Tue 2/2

6:50 pm-4:55 pm

2 stops14h 05m

Tallinn

Tue 3/2

8:05 am-8:30 pm

2 stops20h 25m

$596

Quickest round-trip

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Tue 2/2

4:20 pm-5:10 pm

1 stop16h 50m

Tallinn

Tue 3/2

6:35 am-1:10 pm

1 stop14h 35m

$640

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Fri 11/6

7:15 pm-10:30 am

1 stop31h 15m

Tallinn

Tue 11/17

6:25 am-4:45 pm

1 stop18h 20m

$653

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Fri 11/6

7:15 pm-10:30 am

1 stop31h 15m

Tallinn

Mon 11/16

6:25 am-4:45 pm

1 stop18h 20m

$653

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Mon 10/26

11:35 pm-12:40 am

1 stop18h 05m

Tallinn

Mon 11/2

5:55 pm-1:10 pm

1 stop27h 15m

$653

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Sat 1/16

3:29 pm-1:00 pm

2 stops37h 31m

Tallinn

Sat 1/30

6:35 am-3:20 pm

1 stop16h 45m

$699

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Thu 12/10

9:00 am-1:00 pm

2 stops20h 00m

Tallinn

Mon 12/21

1:45 pm-1:10 pm

1 stop31h 25m

$702

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 15% 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	$358
Fastest flight time	14h 05m
Direct flights	None

The best one-way flight to Estonia from Chicago in the past 72 hours is $358. The best round-trip flight deal from Chicago to Estonia found on momondo in the last 72 hours is $583.

The fastest flight from Chicago to Estonia takes 14h 05m

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 September 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 1,984 reviews	Search Scandinavian Airlines flights
United Airlines	PriceFrom $486	Free Cancellation	Rating 7.4 10,213 reviews	Search United Airlines flights
Lufthansa	PriceFrom $486	Free Cancellation	Rating 6.8 8,222 reviews	Search Lufthansa flights
Finnair	PriceFrom $785	Free Cancellation	Rating 7.6 1,430 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 $530

Flights to Tartufrom $662

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Cheap flights from Chicago to Estonia from $358

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

Price Alerts

Finnair flights from Chicago to Estonia

Our best Finnair deals on Chicago to Estonia flight tickets

Lufthansa flights from Chicago to Estonia

Our best Lufthansa 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