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Cheap flights from Chicago to Estonia from $354

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 3/8. 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

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
7:10 am - 10:20 amORD-TLL
19h 10m2 stops
Scandinavian Airlines Logo
3:45 pm - 4:45 pmTLL-ORD
33h 00m1 stop
$422Scandinavian Airlines
Find Deal
Sun, Dec 7 - Tue, Dec 23
Scandinavian Airlines Logo
7:20 pm - 11:40 pmORD-TLL
20h 20m2 stops
Scandinavian Airlines Logo
3:40 pm - 4:45 pmTLL-ORD
33h 05m2 stops
$430Scandinavian Airlines
Find Deal
Wed, Nov 26 - Wed, Dec 3
Scandinavian Airlines Logo
7:20 pm - 10:20 amORD-TLL
31h 00m1 stop
Scandinavian Airlines Logo
4:20 pm - 4:45 pmTLL-ORD
32h 25m2 stops
$440Scandinavian Airlines
Find Deal
Sat, Dec 6 - Sat, Dec 13
Multiple Airlines Logo
3:35 pm - 12:50 pmORD-TLL
14h 15m2 stops
Multiple Airlines Logo
6:10 am - 12:55 pmTLL-ORD
14h 45m1 stop
$476Multiple Airlines
Find Deal
Tue, Mar 17 - Wed, Apr 8
Air Canada Logo
7:15 am - 12:50 pmORD-TLL
22h 35m2 stops
Air Canada Logo
7:30 am - 7:50 pmTLL-ORD
20h 20m2 stops
$479Air Canada
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Tue, Mar 17 - Thu, Apr 9
Multiple Airlines Logo
2:00 pm - 8:05 pmORD-TLL
23h 05m2 stops
Multiple Airlines Logo
1:50 pm - 7:55 pmTLL-ORD
14h 05m1 stop
$483Multiple Airlines
Find Deal
Sun, Mar 22 - Thu, Apr 9
Air Canada Logo
10:35 am - 12:50 pmORD-TLL
18h 15m2 stops
Air Canada Logo
7:00 am - 7:30 pmTLL-ORD
19h 30m2 stops
$484Air Canada
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Tue, Mar 3 - Fri, Mar 13
United Airlines Logo
11:35 pm - 11:55 pmORD-TLL
17h 20m1 stop
United Airlines Logo
1:50 pm - 7:55 pmTLL-ORD
14h 05m1 stop
$487United Airlines
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Sun, Mar 15 - Fri, Apr 10
United Airlines Logo
1:02 pm - 12:55 pmORD-TLL
15h 53m2 stops
United Airlines Logo
6:20 am - 4:20 pmTLL-ORD
17h 00m1 stop
$491United Airlines
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Sun, Mar 1 - Thu, Mar 12
Lufthansa Logo
9:50 pm - 11:55 pmORD-TLL
18h 05m2 stops
Lufthansa Logo
6:15 am - 7:56 pmTLL-ORD
20h 41m2 stops
$522Lufthansa
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Sun, Mar 1 - Tue, Mar 10

Scandinavian Airlines flights from Chicago to Estonia

Our best Scandinavian Airlines deals on Chicago to Estonia flight tickets
Scandinavian Airlines
Dec 7
ORD7:10 amChicago O'Hare Intl
19h 10m
2 stops
TLL10:20 amTallinn
Dec 23
TLL3:45 pmTallinn
33h 00m
1 stop
ORD4:45 pmChicago O'Hare Intl
$422
Find similar
Scandinavian Airlines
Nov 26
ORD7:20 pmChicago O'Hare Intl
20h 20m
2 stops
TLL11:40 pmTallinn
Dec 3
TLL3:40 pmTallinn
33h 05m
2 stops
ORD4:45 pmChicago O'Hare Intl
$430
Find similar
Scandinavian Airlines
Dec 6
ORD7:20 pmChicago O'Hare Intl
31h 00m
1 stop
TLL10:20 amTallinn
Dec 13
TLL4:20 pmTallinn
32h 25m
2 stops
ORD4:45 pmChicago O'Hare Intl
$440
Find similar

United Airlines flights from Chicago to Estonia

Our best United Airlines deals on Chicago to Estonia flight tickets
United Airlines
Mar 15
ORD11:35 pmChicago O'Hare Intl
17h 20m
1 stop
TLL11:55 pmTallinn
Apr 10
TLL1:50 pmTallinn
14h 05m
1 stop
ORD7:55 pmChicago O'Hare Intl
$487
Find similar
United Airlines
Mar 1
ORD1:02 pmChicago O'Hare Intl
15h 53m
2 stops
TLL12:55 pmTallinn
Mar 12
TLL6:20 amTallinn
17h 00m
1 stop
ORD4:20 pmChicago O'Hare Intl
$491
Find similar
United Airlines
Mar 18
ORD2:00 pmChicago O'Hare Intl
20h 10m
2 stops
TLL5:10 pmTallinn
Apr 10
TLL1:50 pmTallinn
14h 05m
1 stop
ORD7:55 pmChicago O'Hare Intl
$492
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 November 7, 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

Sun 12/7

7:10 am-10:20 am

2 stops19h 10m

Tallinn

Tue 12/23

3:45 pm-4:45 pm

1 stop33h 00m

$422

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Wed 11/26

7:20 pm-11:40 pm

2 stops20h 20m

Tallinn

Wed 12/3

3:40 pm-4:45 pm

2 stops33h 05m

$430

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Sat 12/6

7:20 pm-10:20 am

1 stop31h 00m

Tallinn

Sat 12/13

4:20 pm-4:45 pm

2 stops32h 25m

$440

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 3/17

3:35 pm-12:50 pm

2 stops14h 15m

Tallinn

Wed 4/8

6:10 am-12:55 pm

1 stop14h 45m

$476

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 3/17

7:15 am-12:50 pm

2 stops22h 35m

Tallinn

Thu 4/9

7:30 am-7:50 pm

2 stops20h 20m

$479

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Sun 3/22

2:00 pm-8:05 pm

2 stops23h 05m

Tallinn

Thu 4/9

1:50 pm-7:55 pm

1 stop14h 05m

$483

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 3/3

10:35 am-12:50 pm

2 stops18h 15m

Tallinn

Fri 3/13

7:00 am-7:30 pm

2 stops19h 30m

$484

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Sun 3/15

11:35 pm-11:55 pm

1 stop17h 20m

Tallinn

Fri 4/10

1:50 pm-7:55 pm

1 stop14h 05m

$487

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Sun 3/1

1:02 pm-12:55 pm

2 stops15h 53m

Tallinn

Thu 3/12

6:20 am-4:20 pm

1 stop17h 00m

$491

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Sun 3/1

9:50 pm-11:55 pm

2 stops18h 05m

Tallinn

Tue 3/10

6:15 am-7:56 pm

2 stops20h 41m

$522

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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 $508, 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 $546.

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
1,564 reviews
Search Scandinavian Airlines flights
LufthansaPriceFrom $486Free CancellationRating
6.8
7,558 reviews
Search Lufthansa flights
FinnairPriceFrom $513Free CancellationRating
7.6
1,335 reviews
Search Finnair flights
United AirlinesPriceFrom $554Free CancellationRating
7.4
9,007 reviews
Search United Airlines 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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