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

United Airlines and Scandinavian Airlines are the most popular carriers 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 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 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.

$309 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.

6:30 pm - 11:35 amORD Chicago O'Hare Intl-TLL Tallinn

33h 05m3 stops Reykjavik Keflavik Intl Stockholm Arlanda Oslo Gardermoen

7:00 pm - 5:20 pmTLL Tallinn-ORD Chicago O'Hare Intl

30h 20m3 stops Oslo Gardermoen Stockholm Arlanda Reykjavik Keflavik Intl

$583Multiple Airlines

Mon, Dec 7 - Mon, Dec 14

6:30 pm - 8:30 amORD Chicago O'Hare Intl-TLL Tallinn

30h 00m3 stops Reykjavik Keflavik Intl Stockholm Arlanda Riga Intl

7:00 pm - 5:20 pmTLL Tallinn-ORD Chicago O'Hare Intl

30h 20m3 stops Oslo Gardermoen Stockholm Arlanda Reykjavik Keflavik Intl

$627Multiple Airlines

Mon, Dec 7 - Mon, Dec 14

11:00 pm - 10:50 pmORD Chicago O'Hare Intl-TLL Tallinn

15h 50m2 stops London Heathrow Helsinki-Vantaa

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

19h 50m1 stop Helsinki-Vantaa

$645Finnair

Wed, Apr 14 - Sun, Apr 18

9:30 pm - 3:45 pmORD Chicago O'Hare Intl-TLL Tallinn

10h 15m1 stop Helsinki-Vantaa

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

15h 40m1 stop Helsinki-Vantaa

$646Finnair

Wed, Apr 14 - Sun, Apr 18

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

$671Scandinavian Airlines

Sun, Apr 11 - 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

$671Scandinavian Airlines

Mon, Dec 7 - Mon, Dec 14

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

16h 50m1 stop Frankfurt am Main

2:05 pm - 7:55 pmTLL Tallinn-ORD Chicago O'Hare Intl

13h 50m1 stop Frankfurt am Main

$715Lufthansa

Wed, Mar 10 - Thu, Apr 1

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

16h 50m1 stop Frankfurt am Main

2:05 pm - 7:55 pmTLL Tallinn-ORD Chicago O'Hare Intl

13h 50m1 stop Frankfurt am Main

$715Lufthansa

Tue, Mar 16 - Thu, Apr 15

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

22h 35m1 stop Frankfurt am Main

2:05 pm - 7:55 pmTLL Tallinn-ORD Chicago O'Hare Intl

13h 50m1 stop Frankfurt am Main

$715United Airlines

Sun, Mar 7 - Tue, Mar 30

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

16h 50m1 stop Frankfurt am Main

6:00 am - 12:55 pmTLL Tallinn-ORD Chicago O'Hare Intl

14h 55m1 stop Frankfurt am Main

$715United Airlines

Mon, Mar 15 - Wed, Apr 14

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Scandinavian Airlines flights from Chicago to Estonia

Our best Scandinavian Airlines deals on Chicago to Estonia flight tickets

Scandinavian Airlines

Dec 7

ORD7:10 pmChicago O'Hare Intl

22h 15m

1 stop

TLL1:25 amTallinn

Dec 14

TLL6:20 amTallinn

18h 25m

1 stop

ORD4:45 pmChicago O'Hare Intl

$671

Scandinavian Airlines

Apr 11

ORD7:15 pmChicago O'Hare Intl

31h 30m

1 stop

TLL10:45 amTallinn

Apr 18

TLL7:00 amTallinn

17h 10m

2 stops

ORD4:10 pmChicago O'Hare Intl

$674

Scandinavian Airlines

Dec 7

ORD7:10 pmChicago O'Hare Intl

16h 55m

2 stops

TLL8:05 pmTallinn

Dec 14

TLL6:20 amTallinn

18h 25m

1 stop

ORD4:45 pmChicago O'Hare Intl

$677

SWISS flights from Chicago to Estonia

Our best SWISS deals on Chicago to Estonia flight tickets

SWISS

Feb 17

ORD6:50 pmChicago O'Hare Intl

22h 15m

1 stop

TLL1:05 amTallinn

Mar 1

TLL5:50 amTallinn

18h 25m

1 stop

ORD4:15 pmChicago O'Hare Intl

$707

SWISS

Feb 17

ORD6:50 pmChicago O'Hare Intl

22h 15m

1 stop

TLL1:05 amTallinn

Mar 1

TLL5:50 amTallinn

18h 25m

1 stop

ORD4:15 pmChicago O'Hare Intl

$717

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 12/7

6:30 pm-11:35 am

3 stops33h 05m

Tallinn

Mon 12/14

7:00 pm-5:20 pm

3 stops30h 20m

$583

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Mon 12/7

6:30 pm-8:30 am

3 stops30h 00m

Tallinn

Mon 12/14

7:00 pm-5:20 pm

3 stops30h 20m

$627

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Wed 4/14

11:00 pm-10:50 pm

2 stops15h 50m

Tallinn

Sun 4/18

6:00 am-5:50 pm

1 stop19h 50m

$645

Quickest round-trip

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Wed 4/14

9:30 pm-3:45 pm

1 stop10h 15m

Tallinn

Sun 4/18

10:10 am-5:50 pm

1 stop15h 40m

$646

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Sun 4/11

7:15 pm-10:45 am

1 stop31h 30m

Tallinn

Sun 4/18

6:15 am-4:10 pm

1 stop17h 55m

$671

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Mon 12/7

7:10 pm-1:25 am

1 stop22h 15m

Tallinn

Mon 12/14

6:20 am-4:45 pm

1 stop18h 25m

$671

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Wed 3/10

4:20 pm-5:10 pm

1 stop16h 50m

Tallinn

Thu 4/1

2:05 pm-7:55 pm

1 stop13h 50m

$715

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Tue 3/16

5:20 pm-5:10 pm

1 stop16h 50m

Tallinn

Thu 4/15

2:05 pm-7:55 pm

1 stop13h 50m

$715

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Sun 3/7

6:05 pm-12:40 am

1 stop22h 35m

Tallinn

Tue 3/30

2:05 pm-7:55 pm

1 stop13h 50m

$715

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Mon 3/15

5:20 pm-5:10 pm

1 stop16h 50m

Tallinn

Wed 4/14

6:00 am-12:55 pm

1 stop14h 55m

$715

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 $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 7% 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	$309
Fastest flight time	14h 20m
Direct flights	None

The best one-way flight to Estonia from Chicago in the past 72 hours is $309. 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 20m

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 2,027 reviews	Search Scandinavian Airlines flights
Lufthansa	PriceFrom $486	Free Cancellation	Rating 6.8 8,291 reviews	Search Lufthansa flights
United Airlines	PriceFrom $534	Free Cancellation	Rating 7.3 10,443 reviews	Search United Airlines flights
Finnair	PriceFrom $817	Free Cancellation	Rating 7.6 1,417 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Thu 11/26

Thu 12/3

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Estonia

Popular cities

Other flights from Chicago

Airlines

Cabin classes

Complete your trip

Feeling lucky

Popular cities in Estonia

Flights to Tallinnfrom $448

Flights to Tartufrom $662

Flights to Kuressaare

Cheap flights from Chicago to Estonia from $309

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 2/28. 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

Scandinavian Airlines flights from Chicago to Estonia

Our best Scandinavian Airlines deals on Chicago to Estonia flight tickets

SWISS flights from Chicago to Estonia

Our best SWISS 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