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Cheap flights from Chicago O'Hare Intl Airport to Estonia from $304

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 Estonia departing on 8/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
7:15 pm - 3:20 pm
ORD
-
TLL
12h 05m
1 stop
Scandinavian Airlines Logo
6:25 am - 4:45 pm
TLL
-
ORD
18h 20m
1 stop
$548Scandinavian Airlines
Wed, Nov 4 - Wed, Nov 18
Scandinavian Airlines Logo
7:15 pm - 3:20 pm
ORD
-
TLL
12h 05m
1 stop
Scandinavian Airlines Logo
11:00 am - 4:45 pm
TLL
-
ORD
13h 45m
2 stops
$553Scandinavian Airlines
Sun, Nov 1 - Fri, Nov 20
Scandinavian Airlines Logo
7:15 pm - 3:15 pm
ORD
-
TLL
12h 00m
1 stop
Scandinavian Airlines Logo
6:15 am - 4:10 pm
TLL
-
ORD
17h 55m
1 stop
$554Scandinavian Airlines
Mon, Oct 5 - Mon, Oct 19
Scandinavian Airlines Logo
7:15 pm - 3:20 pm
ORD
-
TLL
12h 05m
1 stop
Scandinavian Airlines Logo
11:00 am - 4:45 pm
TLL
-
ORD
13h 45m
2 stops
$557Scandinavian Airlines
Wed, Nov 4 - Fri, Nov 20
Scandinavian Airlines Logo
7:15 pm - 3:20 pm
ORD
-
TLL
12h 05m
1 stop
Scandinavian Airlines Logo
7:10 am - 4:45 pm
TLL
-
ORD
17h 35m
2 stops
$569Scandinavian Airlines
Wed, Nov 4 - Wed, Nov 18
Scandinavian Airlines Logo
7:15 pm - 1:25 am
ORD
-
TLL
22h 10m
1 stop
Scandinavian Airlines Logo
6:25 am - 4:45 pm
TLL
-
ORD
18h 20m
1 stop
$573Scandinavian Airlines
Tue, Nov 3 - Thu, Nov 19
Scandinavian Airlines Logo
7:15 pm - 3:20 pm
ORD
-
TLL
12h 05m
1 stop
Scandinavian Airlines Logo
7:10 am - 4:45 pm
TLL
-
ORD
17h 35m
2 stops
$574Scandinavian Airlines
Tue, Nov 3 - Wed, Nov 18
Multiple Airlines Logo
12:05 pm - 2:35 pm
ORD
-
TAY
18h 30m
2 stops
Multiple Airlines Logo
3:00 pm - 5:15 pm
TAY
-
ORD
34h 15m
2 stops
$969Multiple Airlines
Tue, Aug 4 - Tue, Aug 11
Finnair Logo
9:30 pm - 2:35 pm
ORD
-
TAY
33h 05m
1 stop
Finnair Logo
5:40 am - 5:50 pm
TAY
-
ORD
20h 10m
1 stop
$1,819Finnair
Tue, Aug 4 - Tue, Aug 11
Finnair Logo
9:30 pm - 2:35 pm
ORD
-
TAY
33h 05m
1 stop
Finnair Logo
3:00 pm - 5:50 pm
TAY
-
ORD
34h 50m
1 stop
$1,875Finnair
Tue, Jul 28 - Mon, Aug 10

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Scandinavian Airlines flights from Chicago O'Hare Intl Airport to Estonia

Our best Scandinavian Airlines deals on Chicago O'Hare Intl Airport to Estonia flight tickets
Scandinavian Airlines
Nov 4
ORD7:15 pmChicago O'Hare Intl
12h 05m
1 stop
TLL3:20 pmTallinn
Nov 18
TLL6:25 amTallinn
18h 20m
1 stop
ORD4:45 pmChicago O'Hare Intl
$548
Scandinavian Airlines
Nov 1
ORD7:15 pmChicago O'Hare Intl
12h 05m
1 stop
TLL3:20 pmTallinn
Nov 20
TLL11:00 amTallinn
13h 45m
2 stops
ORD4:45 pmChicago O'Hare Intl
$553
Scandinavian Airlines
Oct 5
ORD7:15 pmChicago O'Hare Intl
12h 00m
1 stop
TLL3:15 pmTallinn
Oct 19
TLL6:15 amTallinn
17h 55m
1 stop
ORD4:10 pmChicago O'Hare Intl
$554

SWISS flights from Chicago O'Hare Intl Airport to Estonia

Our best SWISS deals on Chicago O'Hare Intl Airport to Estonia flight tickets
SWISS
Aug 10
ORD7:05 pmChicago O'Hare Intl
22h 30m
1 stop
TLL1:35 amTallinn
Aug 26
TLL5:05 amTallinn
15h 30m
1 stop
ORD12:35 pmChicago O'Hare Intl
$677
SWISS
Jul 7
ORD2:40 pmChicago O'Hare Intl
26h 55m
1 stop
TLL1:35 amTallinn
Jul 14
TLL5:05 amTallinn
18h 50m
1 stop
ORD3:55 pmChicago O'Hare Intl
$935
SWISS
Jul 4
ORD2:40 pmChicago O'Hare Intl
26h 55m
1 stop
TLL1:35 amTallinn
Jul 15
TLL5:05 amTallinn
15h 30m
1 stop
ORD12:35 pmChicago O'Hare Intl
$985

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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 June 23, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Estonia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Wed 11/4

7:15 pm-3:20 pm

1 stop12h 05m

Tallinn

Wed 11/18

6:25 am-4:45 pm

1 stop18h 20m

$548
Quickest round-trip

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Sun 11/1

7:15 pm-3:20 pm

1 stop12h 05m

Tallinn

Fri 11/20

11:00 am-4:45 pm

2 stops13h 45m

$553

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Mon 10/5

7:15 pm-3:15 pm

1 stop12h 00m

Tallinn

Mon 10/19

6:15 am-4:10 pm

1 stop17h 55m

$554

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Wed 11/4

7:15 pm-3:20 pm

1 stop12h 05m

Tallinn

Fri 11/20

11:00 am-4:45 pm

2 stops13h 45m

$557

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Wed 11/4

7:15 pm-3:20 pm

1 stop12h 05m

Tallinn

Wed 11/18

7:10 am-4:45 pm

2 stops17h 35m

$569

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 11/3

7:15 pm-1:25 am

1 stop22h 10m

Tallinn

Thu 11/19

6:25 am-4:45 pm

1 stop18h 20m

$573

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 11/3

7:15 pm-3:20 pm

1 stop12h 05m

Tallinn

Wed 11/18

7:10 am-4:45 pm

2 stops17h 35m

$574

ChicagoTartu

ORD - TAY

ORDTAY

Chicago O'Hare Intl

Tue 8/4

12:05 pm-2:35 pm

2 stops18h 30m

Tartu

Tue 8/11

3:00 pm-5:15 pm

2 stops34h 15m

$969

ChicagoTartu

ORD - TAY

ORDTAY

Chicago O'Hare Intl

Tue 8/4

9:30 pm-2:35 pm

1 stop33h 05m

Tartu

Tue 8/11

5:40 am-5:50 pm

1 stop20h 10m

$1,819

ChicagoTartu

ORD - TAY

ORDTAY

Chicago O'Hare Intl

Tue 7/28

9:30 pm-2:35 pm

1 stop33h 05m

Tartu

Mon 8/10

3:00 pm-5:50 pm

1 stop34h 50m

$1,875

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 O'Hare Intl Airport 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 O'Hare Intl Airport is in November. Flight prices, which tend to average around $424, 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 October is your next best option. Flight prices from Chicago O'Hare Intl Airport to Estonia during October average around $433.

Cheap Chicago O'Hare Intl Airport to Estonia flight deals and tips

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

Fastest flight time

12h 55m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Estonia takes 12h 55m
There are no direct flights from Chicago O'Hare Intl Airport to Estonia. There are no popular flight routes from Chicago O'Hare Intl Airport to Estonia.
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Frequently asked questions about flying from Chicago O'Hare Intl Airport to Estonia

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

    Prices for flights from Chicago O'Hare Intl Airport to Estonia were last updated today.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport to Estonia.

  • What documentation or ID do you need to fly to Estonia?

    The required travel and health documents for your Estonia 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 Estonia. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Estonia with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $433Free CancellationRating
7.4
1,848 reviews
Search Scandinavian Airlines flights
United AirlinesPriceFrom $486Free CancellationRating
7.4
9,874 reviews
Search United Airlines flights
LufthansaPriceFrom $486Free CancellationRating
6.8
8,086 reviews
Search Lufthansa flights
FinnairPriceFrom $785Free CancellationRating
7.6
1,415 reviews
Search Finnair flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Estonia from Chicago.

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

Yes. momondo allows you to filter the results for Chicago to Estonia flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Estonia from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Chicago to Estonia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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