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

United Airlines is the most popular carrier operating from Chicago to Estonia

What airlines fly to Estonia?

Scandinavian Airlines, Finnair and United Airlines 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 41% 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 October 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.

$533 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 - 10:50 pmORD Chicago O'Hare Intl-TLL Tallinn

17h 20m1 stop Helsinki-Vantaa

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

19h 50m1 stop Helsinki-Vantaa

$646British Airways

Thu, Apr 15 - Sun, Apr 18

9:50 pm - 1:45 amORD Chicago O'Hare Intl-TLL Tallinn

19h 55m1 stop Warsaw Frederic Chopin

8:35 am - 8:55 pmTLL Tallinn-ORD Chicago O'Hare Intl

19h 20m1 stop Warsaw Frederic Chopin

$652LOT

Mon, Feb 22 - Fri, Mar 19

7:15 pm - 10:45 amORD Chicago O'Hare Intl-TLL Tallinn

31h 30m1 stop Kastrup Copenhagen

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

17h 55m1 stop Kastrup Copenhagen

$653Scandinavian Airlines

Thu, Apr 15 - Sun, Apr 18

7:10 pm - 1:25 amORD Chicago O'Hare Intl-TLL Tallinn

22h 15m1 stop Kastrup Copenhagen

6:20 am - 4:45 pmTLL Tallinn-ORD Chicago O'Hare Intl

18h 25m1 stop Kastrup Copenhagen

$656Scandinavian Airlines

Sun, Dec 6 - Fri, Dec 11

9:30 pm - 4:55 pmORD Chicago O'Hare Intl-TLL Tallinn

11h 25m1 stop Helsinki-Vantaa

8:10 am - 5:50 pmTLL Tallinn-ORD Chicago O'Hare Intl

17h 40m1 stop Helsinki-Vantaa

$658Finnair

Thu, Apr 15 - Sun, Apr 18

8:40 pm - 10:50 pmORD Chicago O'Hare Intl-TLL Tallinn

18h 10m2 stops London Heathrow Helsinki-Vantaa

8:10 am - 5:50 pmTLL Tallinn-ORD Chicago O'Hare Intl

17h 40m1 stop Helsinki-Vantaa

$665Finnair

Thu, Apr 15 - Sun, Apr 18

6:30 pm - 6:05 pmORD Chicago O'Hare Intl-TLL Tallinn

15h 35m2 stops Reykjavik Keflavik Intl Stockholm Arlanda

10:55 am - 5:50 pmTLL Tallinn-ORD Chicago O'Hare Intl

14h 55m1 stop Helsinki-Vantaa

$673Multiple Airlines

Sun, Feb 21 - Thu, Jun 3

10:35 pm - 12:40 amORD Chicago O'Hare Intl-TLL Tallinn

18h 05m1 stop Frankfurt am Main

1:45 pm - 8:05 pmTLL Tallinn-ORD Chicago O'Hare Intl

14h 20m1 stop Frankfurt am Main

$690Lufthansa

Fri, Dec 4 - Fri, Dec 11

6:05 pm - 12:40 amORD Chicago O'Hare Intl-TLL Tallinn

22h 35m1 stop Frankfurt am Main

6:35 am - 2:10 pmTLL Tallinn-ORD Chicago O'Hare Intl

14h 35m1 stop Frankfurt am Main

$715United Airlines

Sun, Feb 21 - Fri, Mar 19

3:15 pm - 1:00 pmORD Chicago O'Hare Intl-TLL Tallinn

13h 45m1 stop Frankfurt am Main

6:35 am - 4:20 pmTLL Tallinn-ORD Chicago O'Hare Intl

16h 45m1 stop Frankfurt am Main

$715United Airlines

Sun, Feb 21 - Tue, Mar 16

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Turkish Airlines flights from Chicago to Estonia

Our best Turkish Airlines deals on Chicago to Estonia flight tickets

Turkish Airlines

Oct 29

ORD12:45 pmChicago O'Hare Intl

15h 20m

1 stop

TLL11:05 amTallinn

Nov 12

TLL6:55 pmTallinn

23h 05m

1 stop

ORD10:00 amChicago O'Hare Intl

$659

Turkish Airlines

Nov 3

ORD12:45 pmChicago O'Hare Intl

14h 20m

1 stop

TLL11:05 amTallinn

Feb 9

TLL6:55 pmTallinn

31h 25m

1 stop

ORD6:20 pmChicago O'Hare Intl

$674

Turkish Airlines

Nov 3

ORD12:45 pmChicago O'Hare Intl

14h 20m

1 stop

TLL11:05 amTallinn

Feb 9

TLL6:55 pmTallinn

31h 25m

1 stop

ORD6:20 pmChicago O'Hare Intl

$676

Air Canada flights from Chicago to Estonia

Our best Air Canada deals on Chicago to Estonia flight tickets

Air Canada

Feb 20

ORD3:45 pmChicago O'Hare Intl

37h 40m

2 stops

TLL1:25 pmTallinn

Mar 22

TLL7:10 amTallinn

19h 42m

2 stops

ORD7:52 pmChicago O'Hare Intl

$716

Air Canada

Dec 10

ORD4:30 pmChicago O'Hare Intl

19h 35m

2 stops

TLL8:05 pmTallinn

Dec 14

TLL7:25 amTallinn

33h 43m

2 stops

ORD9:08 amChicago O'Hare Intl

$726

Air Canada

Feb 23

ORD4:30 pmChicago O'Hare Intl

19h 35m

2 stops

TLL8:05 pmTallinn

Jun 3

TLL7:30 amTallinn

17h 29m

2 stops

ORD4:59 pmChicago O'Hare Intl

$728

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Thu 4/15

9:30 pm-10:50 pm

1 stop17h 20m

Tallinn

Sun 4/18

6:00 am-5:50 pm

1 stop19h 50m

$646

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Mon 2/22

9:50 pm-1:45 am

1 stop19h 55m

Tallinn

Fri 3/19

8:35 am-8:55 pm

1 stop19h 20m

$652

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Thu 4/15

7:15 pm-10:45 am

1 stop31h 30m

Tallinn

Sun 4/18

6:15 am-4:10 pm

1 stop17h 55m

$653

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Sun 12/6

7:10 pm-1:25 am

1 stop22h 15m

Tallinn

Fri 12/11

6:20 am-4:45 pm

1 stop18h 25m

$656

Quickest round-trip

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Thu 4/15

9:30 pm-4:55 pm

1 stop11h 25m

Tallinn

Sun 4/18

8:10 am-5:50 pm

1 stop17h 40m

$658

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Thu 4/15

8:40 pm-10:50 pm

2 stops18h 10m

Tallinn

Sun 4/18

8:10 am-5:50 pm

1 stop17h 40m

$665

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Sun 2/21

6:30 pm-6:05 pm

2 stops15h 35m

Tallinn

Thu 6/3

10:55 am-5:50 pm

1 stop14h 55m

$673

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Fri 12/4

10:35 pm-12:40 am

1 stop18h 05m

Tallinn

Fri 12/11

1:45 pm-8:05 pm

1 stop14h 20m

$690

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Sun 2/21

6:05 pm-12:40 am

1 stop22h 35m

Tallinn

Fri 3/19

6:35 am-2:10 pm

1 stop14h 35m

$715

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Sun 2/21

3:15 pm-1:00 pm

1 stop13h 45m

Tallinn

Tue 3/16

6:35 am-4:20 pm

1 stop16h 45m

$715

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 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 $456, 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 $498.

Can stopping save me money on Chicago to Estonia flights?

You could potentially save up to 11% 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	$533
Fastest flight time	11h 25m
Direct flights	None

The best one-way flight to Estonia from Chicago in the past 72 hours is $533. The best round-trip flight deal from Chicago to Estonia found on momondo in the last 72 hours is $646.

The fastest flight from Chicago to Estonia takes 11h 25m

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 October 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 $440	Free Cancellation	Rating 7.4 2,022 reviews	Search Scandinavian Airlines flights
Lufthansa	PriceFrom $486	Free Cancellation	Rating 6.8 8,289 reviews	Search Lufthansa flights
United Airlines	PriceFrom $534	Free Cancellation	Rating 7.3 10,406 reviews	Search United Airlines flights
Finnair	PriceFrom $817	Free Cancellation	Rating 7.6 1,416 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 $450

Flights to Tartufrom $662

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Cheap flights from Chicago to Estonia from $533

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 10/26. 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

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Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

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Price Alerts

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Turkish Airlines flights from Chicago to Estonia

Our best Turkish Airlines deals on Chicago to Estonia flight tickets

Air Canada flights from Chicago to Estonia

Our best Air Canada 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

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