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Cheap flights from Chicago to Estonia from $279

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 10/20. 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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Cheap round-trip flights

Scandinavian Airlines Logo
7:20 pm - 11:40 pmORD-TLL
20h 20m2 stops
Scandinavian Airlines Logo
8:00 pm - 5:45 pmTLL-ORD
28h 45m2 stops
$468Scandinavian Airlines
Find Deal
Thu, Mar 5 - Fri, Mar 13
Scandinavian Airlines Logo
7:20 pm - 11:40 pmORD-TLL
20h 20m2 stops
Scandinavian Airlines Logo
3:45 pm - 5:45 pmTLL-ORD
33h 00m1 stop
$496Scandinavian Airlines
Find Deal
Wed, Mar 4 - Sun, Mar 8
Scandinavian Airlines Logo
7:20 pm - 1:25 amORD-TLL
22h 05m1 stop
Scandinavian Airlines Logo
3:45 pm - 5:45 pmTLL-ORD
33h 00m1 stop
$498Scandinavian Airlines
Find Deal
Wed, Mar 4 - Sun, Mar 8
Lufthansa Logo
10:35 pm - 11:50 pmORD-TLL
17h 15m1 stop
Lufthansa Logo
6:15 am - 1:10 pmTLL-ORD
14h 55m1 stop
$590Lufthansa
Find Deal
Wed, Dec 24 - Sun, Dec 28
United Airlines Logo
10:35 pm - 11:50 pmORD-TLL
17h 15m1 stop
United Airlines Logo
6:15 am - 6:30 amTLL-ORD
32h 15m2 stops
$606United Airlines
Find Deal
Wed, Dec 24 - Sun, Dec 28
Lufthansa Logo
10:35 pm - 11:50 pmORD-TLL
17h 15m1 stop
Lufthansa Logo
6:15 am - 6:25 pmTLL-ORD
20h 10m2 stops
$633Lufthansa
Find Deal
Wed, Dec 24 - Sun, Dec 28
Logo
5:10 pm - 1:00 amORD-TAY
23h 50m2 stops
Logo
2:40 pm - 1:50 pmTAY-ORD
55h 10m2 stops
$819
Find Deal
Thu, Nov 20 - Sun, Nov 23
Logo
8:40 pm - 1:00 amORD-TAY
20h 20m2 stops
Logo
2:40 pm - 7:15 amTAY-ORD
24h 35m3 stops
$1,035
Find Deal
Thu, Nov 20 - Sun, Nov 23
SWISS Logo
8:08 pm - 1:05 amORD-TLL
44h 57m3 stops
SWISS Logo
6:05 am - 2:10 pmTLL-ORD
40h 05m2 stops
$1,074SWISS
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Tue, Dec 23 - Mon, Dec 29
United Airlines Logo
8:25 pm - 6:05 pmORD-TLL
37h 40m2 stops
United Airlines Logo
2:45 pm - 7:55 pmTLL-ORD
13h 10m1 stop
$1,502United Airlines
Find Deal
Sun, Sep 28 - Wed, Oct 1

Scandinavian Airlines flights from Chicago to Estonia

Our best Scandinavian Airlines deals on Chicago to Estonia flight tickets
Scandinavian Airlines
Mar 5
ORD7:20 pmChicago O'Hare Intl
20h 20m
2 stops
TLL11:40 pmTallinn
Mar 13
TLL8:00 pmTallinn
28h 45m
2 stops
ORD5:45 pmChicago O'Hare Intl
$468
Find similar
Scandinavian Airlines
Mar 4
ORD7:20 pmChicago O'Hare Intl
20h 20m
2 stops
TLL11:40 pmTallinn
Mar 8
TLL3:45 pmTallinn
33h 00m
1 stop
ORD5:45 pmChicago O'Hare Intl
$496
Find similar
Scandinavian Airlines
Mar 4
ORD7:20 pmChicago O'Hare Intl
22h 05m
1 stop
TLL1:25 amTallinn
Mar 8
TLL3:45 pmTallinn
33h 00m
1 stop
ORD5:45 pmChicago O'Hare Intl
$498
Find similar

Lufthansa flights from Chicago to Estonia

Our best Lufthansa deals on Chicago to Estonia flight tickets
Lufthansa
Dec 24
ORD10:35 pmChicago O'Hare Intl
17h 15m
1 stop
TLL11:50 pmTallinn
Dec 28
TLL6:15 amTallinn
14h 55m
1 stop
ORD1:10 pmChicago O'Hare Intl
$590
Find similar
Lufthansa
Dec 24
ORD10:35 pmChicago O'Hare Intl
17h 15m
1 stop
TLL11:50 pmTallinn
Dec 28
TLL6:15 amTallinn
20h 10m
2 stops
ORD6:25 pmChicago O'Hare Intl
$633
Find similar
Lufthansa
Dec 23
ORD4:20 pmChicago O'Hare Intl
12h 50m
1 stop
TLL1:10 pmTallinn
Dec 29
TLL6:05 pmTallinn
27h 05m
1 stop
ORD1:10 pmChicago O'Hare Intl
$854
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago to Estonia 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 September 15, 2025.
Use the filters below to find and compare flights from Chicago to Estonia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Thu 3/5

7:20 pm-11:40 pm

2 stops20h 20m

Tallinn

Fri 3/13

8:00 pm-5:45 pm

2 stops28h 45m

$468

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Wed 3/4

7:20 pm-11:40 pm

2 stops20h 20m

Tallinn

Sun 3/8

3:45 pm-5:45 pm

1 stop33h 00m

$496

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Wed 3/4

7:20 pm-1:25 am

1 stop22h 05m

Tallinn

Sun 3/8

3:45 pm-5:45 pm

1 stop33h 00m

$498

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Wed 12/24

10:35 pm-11:50 pm

1 stop17h 15m

Tallinn

Sun 12/28

6:15 am-1:10 pm

1 stop14h 55m

$590

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Wed 12/24

10:35 pm-11:50 pm

1 stop17h 15m

Tallinn

Sun 12/28

6:15 am-6:30 am

2 stops32h 15m

$606

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Wed 12/24

10:35 pm-11:50 pm

1 stop17h 15m

Tallinn

Sun 12/28

6:15 am-6:25 pm

2 stops20h 10m

$633

ChicagoTartu

ORD - TAY

ORDTAY

Chicago O'Hare Intl

Thu 11/20

5:10 pm-1:00 am

2 stops23h 50m

Tartu

Sun 11/23

2:40 pm-1:50 pm

2 stops55h 10m

$819

ChicagoTartu

ORD - TAY

ORDTAY

Chicago O'Hare Intl

Thu 11/20

8:40 pm-1:00 am

2 stops20h 20m

Tartu

Sun 11/23

2:40 pm-7:15 am

3 stops24h 35m

$1,035

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 12/23

8:08 pm-1:05 am

3 stops44h 57m

Tallinn

Mon 12/29

6:05 am-2:10 pm

2 stops40h 05m

$1,074

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Sun 9/28

8:25 pm-6:05 pm

2 stops37h 40m

Tallinn

Wed 10/1

2:45 pm-7:55 pm

1 stop13h 10m

$1,502

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
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See travel insights to Estonia from

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

What is the cheapest month to fly to Estonia?

The cheapest month to fly to Estonia from Chicago is in November. Flight prices, which tend to average around $498, are often lower during this time because this is during the off-season. If you’re not able to fly to Estonia in November, then March is your next best option. Flight prices from Chicago to Estonia during March average around $508.

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

On average, the least expensive day to fly to Estonia from Chicago is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $651. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Estonia on Monday is $962.

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

Our data shows that the cheapest Chicago to Estonia flights are usually those with departure times in the evening. Our users have found flights to Estonia in the evening for as low as $702. Try not to purchase tickets at noon because they tend to be around $851. Of course, these prices can vary depending on the time of year and what airport you fly to.

Cheap Chicago to Estonia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Estonia

Direct flights

None
There are no direct flights from Chicago to Estonia. There are no popular flight routes from Chicago to Estonia.
Search flight deals

  • 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?

  • 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 AirlinesPriceFrom $424Free CancellationRating
7.4
1,484 reviews
Search Scandinavian Airlines flights
FinnairPriceFrom $507Free CancellationRating
7.6
1,323 reviews
Search Finnair flights
United AirlinesPriceFrom $528Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
LufthansaPriceFrom $535Free CancellationRating
6.8
7,407 reviews
Search Lufthansa 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

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