Which layover airport has the shortest travel time from Chicago O'Hare Intl Airport to Tallinn?

Flights connecting via Helsinki (HEL) have the shortest average one-way travel time: 10h 30m.

Which airport is the most popular layover for flights between Chicago O'Hare Intl Airport and Tallinn?

Istanbul (IST) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

What airlines fly to Tallinn?

Scandinavian Airlines, United Airlines and Finnair are the top three most popular airlines that fly to Tallinn from Chicago O'Hare Intl Airport according to our data. Scandinavian Airlines is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Tallinn. Keep in mind that there are 4 different airlines that fly to Tallinn on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest connection time from Chicago O'Hare Intl Airport to Tallinn?

Helsinki (HEL) has the shortest average layover time for this route: 1h 44m.

Which layover airport offers the lowest fares from Chicago O'Hare Intl Airport to Tallinn?

Flights via Frankfurt am Main (FRA) offer the lowest average round-trip price of $486.

When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Tallinn Airport?

Prices for flights from Chicago O'Hare Intl Airport to Tallinn Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Tallinn Airport?

As of August 2026, there are 4 operators available to choose from for flights from Chicago O'Hare Intl Airport to Tallinn Airport.

How old do you have to be to fly from Chicago O'Hare Intl Airport to Tallinn Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Tallinn Airport.

What documentation or ID do you need to fly to Tallinn Airport?

The required travel and health documents for your Tallinn Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Tallinn Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$323 Cheap Flights from Chicago O'Hare Intl Airport to Tallinn in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chicago O'Hare Intl Airport to Tallinn

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

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

17h 55m1 stop Kastrup Copenhagen

$652Scandinavian Airlines

Fri, Oct 2 - Thu, Oct 15

7:15 pm - 3:15 pmORD Chicago O'Hare Intl-TLL Tallinn

12h 00m1 stop Kastrup Copenhagen

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

17h 10m2 stops Stockholm Arlanda Kastrup Copenhagen

$658Scandinavian Airlines

Fri, Oct 2 - Thu, Oct 15

3:45 pm - 2:25 pmORD Chicago O'Hare Intl-TLL Tallinn

38h 40m2 stops Dublin Berlin Brandenburg

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

14h 55m1 stop Helsinki-Vantaa

$663Multiple Airlines

Mon, Sep 28 - Mon, Oct 5

9:50 pm - 12:20 amORD Chicago O'Hare Intl-TLL Tallinn

18h 30m2 stops London Heathrow Helsinki-Vantaa

10:40 pm - 3:30 pmTLL Tallinn-ORD Chicago O'Hare Intl

24h 50m2 stops Helsinki-Vantaa London Heathrow

$673Finnair

Tue, Nov 24 - Mon, Nov 30

7:25 pm - 11:10 pmORD Chicago O'Hare Intl-TLL Tallinn

19h 45m2 stops Reykjavik Keflavik Intl Stockholm Arlanda

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

14h 55m1 stop Helsinki-Vantaa

$682Multiple Airlines

Tue, Sep 29 - Tue, Oct 6

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

11h 25m1 stop Helsinki-Vantaa

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

19h 50m1 stop Helsinki-Vantaa

$767Finnair

Tue, Sep 29 - Tue, Oct 6

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

16h 50m1 stop Frankfurt am Main

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

27h 15m1 stop Frankfurt am Main

$787Lufthansa

Mon, Nov 23 - Mon, Nov 30

10:35 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

$787Lufthansa

Wed, Nov 25 - Mon, Nov 30

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

16h 50m1 stop Frankfurt am Main

6:35 am - 3:38 pmTLL Tallinn-ORD Chicago O'Hare Intl

17h 03m2 stops Frankfurt am Main Toronto Pearson Intl

$835United Airlines

Tue, Nov 24 - Sun, Nov 29

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

18h 05m1 stop Frankfurt am Main

6:35 am - 3:38 pmTLL Tallinn-ORD Chicago O'Hare Intl

17h 03m2 stops Frankfurt am Main Toronto Pearson Intl

$835United Airlines

Wed, Nov 25 - Sun, Nov 29

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 O'Hare Intl Airport to Tallinn

Our best Scandinavian Airlines deals on Chicago O'Hare Intl Airport to Tallinn 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

$652

Scandinavian Airlines

Oct 2

ORD7:15 pmChicago O'Hare Intl

12h 00m

1 stop

TLL3:15 pmTallinn

Oct 15

TLL7:00 amTallinn

17h 10m

2 stops

ORD4:10 pmChicago O'Hare Intl

$658

Scandinavian Airlines

Nov 24

ORD7:15 pmChicago O'Hare Intl

22h 10m

1 stop

TLL1:25 amTallinn

Dec 1

TLL6:25 amTallinn

18h 20m

1 stop

ORD4:45 pmChicago O'Hare Intl

$669

Finnair flights from Chicago O'Hare Intl Airport to Tallinn

Our best Finnair deals on Chicago O'Hare Intl Airport to Tallinn flight tickets

Finnair

Nov 24

ORD9:50 pmChicago O'Hare Intl

18h 30m

2 stops

TLL12:20 amTallinn

Nov 30

TLL10:40 pmTallinn

24h 50m

2 stops

ORD3:30 pmChicago O'Hare Intl

$673

Finnair

Sep 29

ORD9:30 pmChicago O'Hare Intl

11h 25m

1 stop

TLL4:55 pmTallinn

Oct 6

TLL6:00 amTallinn

19h 50m

1 stop

ORD5:50 pmChicago O'Hare Intl

$767

momondo Fare Finder

Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Tallinn 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

7:15 pm-1:30 am

1 stop22h 15m

Tallinn

Thu 10/15

6:15 am-4:10 pm

1 stop17h 55m

$652

Quickest round-trip

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Fri 10/2

7:15 pm-3:15 pm

1 stop12h 00m

Tallinn

Thu 10/15

7:00 am-4:10 pm

2 stops17h 10m

$658

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Mon 9/28

3:45 pm-2:25 pm

2 stops38h 40m

Tallinn

Mon 10/5

10:55 am-5:50 pm

1 stop14h 55m

$663

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Tue 11/24

9:50 pm-12:20 am

2 stops18h 30m

Tallinn

Mon 11/30

10:40 pm-3:30 pm

2 stops24h 50m

$673

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Tue 9/29

7:25 pm-11:10 pm

2 stops19h 45m

Tallinn

Tue 10/6

10:55 am-5:50 pm

1 stop14h 55m

$682

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Tue 9/29

9:30 pm-4:55 pm

1 stop11h 25m

Tallinn

Tue 10/6

6:00 am-5:50 pm

1 stop19h 50m

$767

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Mon 11/23

4:20 pm-5:10 pm

1 stop16h 50m

Tallinn

Mon 11/30

5:55 pm-1:10 pm

1 stop27h 15m

$787

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Wed 11/25

10:35 pm-12:40 am

1 stop18h 05m

Tallinn

Mon 11/30

5:55 pm-1:10 pm

1 stop27h 15m

$787

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Tue 11/24

4:20 pm-5:10 pm

1 stop16h 50m

Tallinn

Sun 11/29

6:35 am-3:38 pm

2 stops17h 03m

$835

ChicagoTallinn

ORD Chicago O'Hare Intl - TLL Tallinn

ORDTLL

Chicago O'Hare Intl

Wed 11/25

10:35 pm-12:40 am

1 stop18h 05m

Tallinn

Sun 11/29

6:35 am-3:38 pm

2 stops17h 03m

$835

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 O'Hare Intl Airport to Tallinn

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

Layovers

What is the cheapest month to fly to Tallinn?

The month of January is, on average, the cheapest month to fly to Tallinn from Chicago O'Hare Intl Airport, with most prices found around $445. If you aren’t able to travel during the month of January, then book flights to Tallinn from Chicago O'Hare Intl Airport during April instead. Flights to Tallinn in April, while not as cheap as those in January, still average around $472.

When to book flights from Chicago O'Hare Intl Airport to Tallinn

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Tallinn according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Tallinn (ORD to TLL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Tallinn

Best Price Found	$323
Fastest flight time	12h 00m
Direct flights	None

The best one-way flight to Tallinn from Chicago O'Hare Intl Airport in the past 72 hours is $323. The best round-trip flight deal from Chicago O'Hare Intl Airport to Tallinn found on momondo in the last 72 hours is $652.

The fastest flight from Chicago O'Hare Intl Airport to Tallinn takes 12h 00m

There are no direct flights from Chicago O'Hare Intl Airport to Tallinn. There are no popular flight routes from Chicago O'Hare Intl Airport to Tallinn.

Search flight deals

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Tallinn

How far is Chicago O'Hare Intl to Tallinn by plane?
The distance between Chicago O'Hare Intl and Tallinn is about 4454.3 mi. A reasonable flight in good conditions will take 12h 00m.
When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Tallinn Airport?
Prices for flights from Chicago O'Hare Intl Airport to Tallinn Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Tallinn Airport?
As of August 2026, there are 4 operators available to choose from for flights from Chicago O'Hare Intl Airport to Tallinn Airport.
How old do you have to be to fly from Chicago O'Hare Intl Airport to Tallinn Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Tallinn Airport.
What documentation or ID do you need to fly to Tallinn Airport?
The required travel and health documents for your Tallinn Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Tallinn Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Chicago O'Hare Intl Airport to Tallinn?
momondo data reveals that the most frequently booked airline on the route from Chicago O'Hare Intl Airport to Tallinn is Scandinavian Airlines, representing 39% of all bookings. The subsequent popular airlines are United Airlines at 23%, Finnair at 19%, and Lufthansa at 19%.

Best airlines flying from Chicago O'Hare Intl Airport to Tallinn

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Tallinn with momondo

Airline	Rating	Free Cancellation	Price
Scandinavian Airlines	PriceFrom $437	Free Cancellation	Rating 7.4 1,952 reviews	Search Scandinavian Airlines flights
United Airlines	PriceFrom $486	Free Cancellation	Rating 7.4 10,103 reviews	Search United Airlines flights
Lufthansa	PriceFrom $486	Free Cancellation	Rating 6.8 8,197 reviews	Search Lufthansa flights
Finnair	PriceFrom $785	Free Cancellation	Rating 7.6 1,427 reviews	Search Finnair flights

Pärnu

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Tallinn?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Chicago to Tallinn for you.

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

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

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

momondo helps you find the best flight between Chicago and Tallinn by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Tallinn from Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Tallinn 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 9/17

Thu 9/24

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

Nearby airports

Airlines

Cabin classes

Other Estonia destinations

Other flights from Chicago O'Hare Intl Airport

Complete your trip

Feeling lucky

Airports servicing Estonia

Tartu Airport

Kuressaare Airport

Cheap flights from Chicago O'Hare Intl Airport to Tallinn from $323

Find the cheapest flights from Chicago O'Hare Intl Airport to Tallinn

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 O'Hare Intl Airport to Tallinn

Our best Scandinavian Airlines deals on Chicago O'Hare Intl Airport to Tallinn flight tickets

Finnair flights from Chicago O'Hare Intl Airport to Tallinn

Our best Finnair deals on Chicago O'Hare Intl Airport to Tallinn flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Tallinn that are best for you.

See travel insights to Tallinn from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Tallinn

What is the cheapest month to fly to Tallinn?

What airlines fly to Tallinn?

Which airport is the most popular layover for flights between Chicago O'Hare Intl Airport and Tallinn?

Which layover airport offers the lowest fares from Chicago O'Hare Intl Airport to Tallinn?

Which layover airport has the shortest travel time from Chicago O'Hare Intl Airport to Tallinn?

Which layover airport has the shortest connection time from Chicago O'Hare Intl Airport to Tallinn?

When to book flights from Chicago O'Hare Intl Airport to Tallinn

Cheap Chicago O'Hare Intl Airport to Tallinn (ORD to TLL) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Tallinn

Best airlines flying from Chicago O'Hare Intl Airport to Tallinn

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Tallinn with momondo

Traveling to a place near Tallinn?

Why use momondo?

An easier way to manage your Tallinn 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

Airports servicing Estonia

Fly your favorite airline to Tallinn

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

Cabin classes currently available on flights to Tallinn

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

Popular cities in Estonia

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

Fly to other destinations from Chicago O'Hare Intl Airport

According to popular flight searches on momondo this year

Complete your trip to Tallinn

Explore popular destinations other users love

According to popular flight searches on momondo this year