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Cheap flights from Chicago to Estonia from $318

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.
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0 bags

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Cheap round-trip flights

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Scandinavian Airlines Logo
7:10 am - 3:10 pmORD-TLL
24h 00m2 stops
Scandinavian Airlines Logo
8:00 pm - 4:45 pmTLL-ORD
28h 45m2 stops
$391Scandinavian Airlines
Find Deal
Tue, Nov 18 - Tue, Dec 2
Scandinavian Airlines Logo
10:40 am - 3:10 pmORD-TLL
20h 30m2 stops
Scandinavian Airlines Logo
8:00 pm - 4:45 pmTLL-ORD
28h 45m2 stops
$413Scandinavian Airlines
Find Deal
Mon, Feb 9 - Tue, Feb 24
Lufthansa Logo
10:35 pm - 11:50 pmORD-TLL
17h 15m1 stop
Lufthansa Logo
6:00 am - 1:10 pmTLL-ORD
15h 10m1 stop
$482Lufthansa
Find Deal
Sun, Nov 23 - Wed, Dec 3
Multiple Airlines Logo
10:00 am - 8:05 pmORD-TLL
26h 05m2 stops
Multiple Airlines Logo
6:00 am - 1:10 pmTLL-ORD
15h 10m1 stop
$483Multiple Airlines
Find Deal
Sun, Nov 23 - Wed, Dec 3
Air Canada Logo
2:00 pm - 8:05 pmORD-TLL
22h 05m2 stops
Air Canada Logo
6:40 am - 2:55 pmTLL-ORD
16h 15m2 stops
$486Air Canada
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Sun, Nov 23 - Wed, Dec 3
Multiple Airlines Logo
8:15 pm - 8:05 pmORD-TLL
39h 50m2 stops
Multiple Airlines Logo
6:05 pm - 1:10 pmTLL-ORD
27h 05m1 stop
$502Multiple Airlines
Find Deal
Sat, Nov 22 - Tue, Dec 2
Lufthansa Logo
4:20 pm - 5:10 pmORD-TLL
16h 50m1 stop
Lufthansa Logo
1:55 pm - 8:05 pmTLL-ORD
14h 10m1 stop
$506Lufthansa
Find Deal
Sun, Nov 30 - Sun, Dec 7
Air Canada Logo
8:15 pm - 8:05 pmORD-TLL
39h 50m2 stops
Air Canada Logo
6:40 am - 8:00 amTLL-ORD
33h 20m2 stops
$516Air Canada
Find Deal
Sat, Nov 22 - Tue, Dec 2
United Airlines Logo
10:35 pm - 11:50 pmORD-TLL
17h 15m1 stop
United Airlines Logo
6:05 pm - 11:10 amTLL-ORD
25h 05m1 stop
$535United Airlines
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Wed, Nov 19 - Mon, Dec 1
United Airlines Logo
6:50 pm - 5:10 pmORD-TLL
14h 20m2 stops
United Airlines Logo
6:15 am - 5:12 pmTLL-ORD
18h 57m2 stops
$667United Airlines
Find Deal
Wed, Mar 4 - Sun, Mar 8

Scandinavian Airlines flights from Chicago to Estonia

Our best Scandinavian Airlines deals on Chicago to Estonia flight tickets
Scandinavian Airlines
Nov 18
ORD7:10 amChicago O'Hare Intl
24h 00m
2 stops
TLL3:10 pmTallinn
Dec 2
TLL8:00 pmTallinn
28h 45m
2 stops
ORD4:45 pmChicago O'Hare Intl
$391
Find similar
Scandinavian Airlines
Feb 9
ORD10:40 amChicago O'Hare Intl
20h 30m
2 stops
TLL3:10 pmTallinn
Feb 24
TLL8:00 pmTallinn
28h 45m
2 stops
ORD4:45 pmChicago O'Hare Intl
$413
Find similar
Scandinavian Airlines
Dec 7
ORD6:30 pmChicago O'Hare Intl
36h 40m
2 stops
TLL3:10 pmTallinn
Dec 23
TLL3:45 pmTallinn
33h 00m
1 stop
ORD4:45 pmChicago O'Hare Intl
$429
Find similar

United Airlines flights from Chicago to Estonia

Our best United Airlines deals on Chicago to Estonia flight tickets
United Airlines
Nov 19
ORD10:35 pmChicago O'Hare Intl
17h 15m
1 stop
TLL11:50 pmTallinn
Dec 1
TLL6:05 pmTallinn
25h 05m
1 stop
ORD11:10 amChicago O'Hare Intl
$535
Find similar
United Airlines
Mar 4
ORD6:50 pmChicago O'Hare Intl
14h 20m
2 stops
TLL5:10 pmTallinn
Mar 8
TLL6:15 amTallinn
18h 57m
2 stops
ORD5:12 pmChicago O'Hare Intl
$667
Find similar
United Airlines
Mar 4
ORD6:50 pmChicago O'Hare Intl
14h 20m
2 stops
TLL5:10 pmTallinn
Mar 8
TLL1:55 pmTallinn
16h 48m
2 stops
ORD11:43 pmChicago O'Hare Intl
$668
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 October 16, 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

Tue 11/18

7:10 am-3:10 pm

2 stops24h 00m

Tallinn

Tue 12/2

8:00 pm-4:45 pm

2 stops28h 45m

$391

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Mon 2/9

10:40 am-3:10 pm

2 stops20h 30m

Tallinn

Tue 2/24

8:00 pm-4:45 pm

2 stops28h 45m

$413

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Sun 11/23

10:35 pm-11:50 pm

1 stop17h 15m

Tallinn

Wed 12/3

6:00 am-1:10 pm

1 stop15h 10m

$482

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Sun 11/23

10:00 am-8:05 pm

2 stops26h 05m

Tallinn

Wed 12/3

6:00 am-1:10 pm

1 stop15h 10m

$483

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Sun 11/23

2:00 pm-8:05 pm

2 stops22h 05m

Tallinn

Wed 12/3

6:40 am-2:55 pm

2 stops16h 15m

$486

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Sat 11/22

8:15 pm-8:05 pm

2 stops39h 50m

Tallinn

Tue 12/2

6:05 pm-1:10 pm

1 stop27h 05m

$502

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Sun 11/30

4:20 pm-5:10 pm

1 stop16h 50m

Tallinn

Sun 12/7

1:55 pm-8:05 pm

1 stop14h 10m

$506

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Sat 11/22

8:15 pm-8:05 pm

2 stops39h 50m

Tallinn

Tue 12/2

6:40 am-8:00 am

2 stops33h 20m

$516

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Wed 11/19

10:35 pm-11:50 pm

1 stop17h 15m

Tallinn

Mon 12/1

6:05 pm-11:10 am

1 stop25h 05m

$535

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Wed 3/4

6:50 pm-5:10 pm

2 stops14h 20m

Tallinn

Sun 3/8

6:15 am-5:12 pm

2 stops18h 57m

$667

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 March. Flight prices, which tend to average around $513, are often lower during this time because this is during the off-season. If you’re not able to fly to Estonia in March, then February is your next best option. Flight prices from Chicago to Estonia during February average around $547.

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
1,533 reviews
Search Scandinavian Airlines flights
FinnairPriceFrom $513Free CancellationRating
7.6
1,332 reviews
Search Finnair flights
United AirlinesPriceFrom $529Free CancellationRating
7.4
8,982 reviews
Search United Airlines flights
LufthansaPriceFrom $535Free CancellationRating
6.8
7,497 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.

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