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Cheap flights from Chicago O'Hare Intl Airport to Tallinn from $421

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 O'Hare Intl Airport to Tallinn departing on 8/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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

Cheap round-trip flights

Scandinavian Airlines Logo
7:15 pm - 3:55 pmORD-TLL
12h 40m2 stops
Scandinavian Airlines Logo
8:00 pm - 4:10 pmTLL-ORD
28h 10m2 stops
$434Scandinavian Airlines
Find Deal
Thu, Oct 9 - Wed, Oct 22
Scandinavian Airlines Logo
7:20 pm - 3:10 pmORD-TLL
11h 50m1 stop
Scandinavian Airlines Logo
4:10 pm - 4:45 pmTLL-ORD
32h 35m2 stops
$437Scandinavian Airlines
Find Deal
Thu, Nov 6 - Sun, Nov 23
United Airlines Logo
1:36 pm - 4:50 pmORD-TLL
19h 14m2 stops
United Airlines Logo
1:55 pm - 8:05 pmTLL-ORD
14h 10m1 stop
$500United Airlines
Find Deal
Tue, Nov 4 - Wed, Nov 19
United Airlines Logo
3:07 pm - 4:50 pmORD-TLL
17h 43m2 stops
United Airlines Logo
6:00 am - 5:05 pmTLL-ORD
19h 05m2 stops
$506United Airlines
Find Deal
Tue, Nov 4 - Wed, Nov 19
SWISS Logo
7:05 pm - 1:35 amORD-TLL
22h 30m1 stop
SWISS Logo
6:00 am - 3:55 pmTLL-ORD
17h 55m1 stop
$515SWISS
Find Deal
Tue, Sep 9 - Tue, Sep 16
SWISS Logo
7:05 pm - 1:35 amORD-TLL
22h 30m1 stop
SWISS Logo
6:00 am - 3:55 pmTLL-ORD
17h 55m1 stop
$529SWISS
Find Deal
Tue, Sep 9 - Tue, Sep 16
Lufthansa Logo
10:30 pm - 12:20 amORD-TLL
17h 50m1 stop
Lufthansa Logo
6:50 pm - 12:55 pmTLL-ORD
26h 05m1 stop
$550Lufthansa
Find Deal
Wed, Sep 10 - Tue, Sep 16
Finnair Logo
5:40 pm - 4:55 pmORD-TLL
15h 15m2 stops
Finnair Logo
6:00 am - 1:50 pmTLL-ORD
15h 50m2 stops
$556Finnair
Find Deal
Mon, Oct 6 - Wed, Oct 22
Lufthansa Logo
10:30 pm - 12:20 amORD-TLL
17h 50m1 stop
Lufthansa Logo
6:50 pm - 12:55 pmTLL-ORD
26h 05m1 stop
$578Lufthansa
Find Deal
Mon, Sep 1 - Tue, Sep 16
Finnair Logo
8:35 pm - 7:45 pmORD-TLL
15h 10m2 stops
Finnair Logo
10:55 am - 7:15 pmTLL-ORD
16h 20m2 stops
$590Finnair
Find Deal
Sun, Aug 31 - Tue, Sep 16

American Airlines flights from Chicago O'Hare Intl Airport to Tallinn

Our best American Airlines deals on Chicago O'Hare Intl Airport to Tallinn flight tickets
American Airlines
Sep 9
ORD4:55 pmChicago O'Hare Intl
15h 15m
2 stops
TLL4:10 pmTallinn
Sep 16
TLL6:55 amTallinn
21h 06m
2 stops
ORD8:01 pmChicago O'Hare Intl
$540
Find similar
American Airlines
Sep 3
ORD4:55 pmChicago O'Hare Intl
15h 15m
2 stops
TLL4:10 pmTallinn
Sep 10
TLL6:00 amTallinn
19h 00m
2 stops
ORD5:00 pmChicago O'Hare Intl
$586
Find similar
American Airlines
Sep 3
ORD4:54 pmChicago O'Hare Intl
15h 16m
2 stops
TLL4:10 pmTallinn
Sep 10
TLL6:00 amTallinn
20h 15m
2 stops
ORD6:15 pmChicago O'Hare Intl
$587
Find similar

Air Canada flights from Chicago O'Hare Intl Airport to Tallinn

Our best Air Canada deals on Chicago O'Hare Intl Airport to Tallinn flight tickets
Air Canada
Sep 21
ORD8:40 amChicago O'Hare Intl
20h 25m
2 stops
TLL1:05 pmTallinn
Sep 30
TLL7:20 amTallinn
20h 51m
2 stops
ORD8:11 pmChicago O'Hare Intl
$576
Find similar
Air Canada
Sep 6
ORD6:00 pmChicago O'Hare Intl
35h 05m
2 stops
TLL1:05 pmTallinn
Sep 17
TLL7:30 amTallinn
20h 41m
2 stops
ORD8:11 pmChicago O'Hare Intl
$599
Find similar
Air Canada
Sep 3
ORD8:40 amChicago O'Hare Intl
27h 15m
2 stops
TLL7:55 pmTallinn
Sep 10
TLL7:30 amTallinn
32h 31m
2 stops
ORD8:01 amChicago O'Hare Intl
$603
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to Tallinn that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 14, 2025.
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

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Thu 10/9

7:15 pm-3:55 pm

2 stops12h 40m

Tallinn

Wed 10/22

8:00 pm-4:10 pm

2 stops28h 10m

$434

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Thu 11/6

7:20 pm-3:10 pm

1 stop11h 50m

Tallinn

Sun 11/23

4:10 pm-4:45 pm

2 stops32h 35m

$437

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 11/4

1:36 pm-4:50 pm

2 stops19h 14m

Tallinn

Wed 11/19

1:55 pm-8:05 pm

1 stop14h 10m

$500

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 11/4

3:07 pm-4:50 pm

2 stops17h 43m

Tallinn

Wed 11/19

6:00 am-5:05 pm

2 stops19h 05m

$506

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 9/9

7:05 pm-1:35 am

1 stop22h 30m

Tallinn

Tue 9/16

6:00 am-3:55 pm

1 stop17h 55m

$515

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 9/9

7:05 pm-1:35 am

1 stop22h 30m

Tallinn

Tue 9/16

6:00 am-3:55 pm

1 stop17h 55m

$529

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Wed 9/10

10:30 pm-12:20 am

1 stop17h 50m

Tallinn

Tue 9/16

6:50 pm-12:55 pm

1 stop26h 05m

$550

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Mon 10/6

5:40 pm-4:55 pm

2 stops15h 15m

Tallinn

Wed 10/22

6:00 am-1:50 pm

2 stops15h 50m

$556

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Mon 9/1

10:30 pm-12:20 am

1 stop17h 50m

Tallinn

Tue 9/16

6:50 pm-12:55 pm

1 stop26h 05m

$578

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Sun 8/31

8:35 pm-7:45 pm

2 stops15h 10m

Tallinn

Tue 9/16

10:55 am-7:15 pm

2 stops16h 20m

$590

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Tallinn from

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

What is the cheapest month to fly to Tallinn?

The month of October is, on average, the cheapest month to fly to Tallinn from Chicago O'Hare Intl Airport, with most prices found around $517. If you aren’t able to travel during the month of October, 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 October, still average around $548.

What is the cheapest day to depart on your flight to Tallinn?

The cheapest day to depart from Chicago O'Hare Intl Airport to Tallinn is on a Monday when prices can be found for as low as $663. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Chicago O'Hare Intl Airport to Tallinn for around $1,035.

What is the cheapest time of day to depart on your flight to Tallinn?

Flying to Tallinn from Chicago O'Hare Intl Airport in the morning is the least expensive time of day to depart. momondo users have found prices as low as $678 when looking at flights departing in the morning. Flights at noon are often more expensive with an average ticket price of $851.

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

$421

Fastest flight time

11h 50m

Direct flights

None

Airports in Tallinn

1 airport
The best one-way flight to Tallinn from Chicago O'Hare Intl Airport in the past 72 hours is $421. The best round-trip flight deal from Chicago O'Hare Intl Airport to Tallinn found on momondo in the last 72 hours is $434.
The fastest flight from Chicago O'Hare Intl Airport to Tallinn takes 11h 50m
There are no direct flights from Chicago O'Hare Intl Airport to Tallinn. Popular non-direct route for this connection is Chicago O'Hare Intl Airport - Tallinn Airport.
There is 1 airport near Tallinn: Tallinn (TLL)
Search flight deals

  • 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 11h 50m.

  • 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?

  • 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?

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 AirlinesPriceFrom $424Free CancellationRating
7.4
1,468 reviews
Search Scandinavian Airlines flights
FinnairPriceFrom $507Free CancellationRating
7.6
1,321 reviews
Search Finnair flights
United AirlinesPriceFrom $528Free CancellationRating
7.4
8,916 reviews
Search United Airlines flights
LufthansaPriceFrom $535Free CancellationRating
6.8
7,317 reviews
Search Lufthansa flights

Traveling to a place near Tallinn?

Book flights to Tallinn if you plan to visit one of these locations
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.

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