Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Chicago O'Hare Intl Airport 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 O'Hare Intl Airport 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.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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
10:35 am - 10:20 amORD-TLL
15h 45m2 stops
Scandinavian Airlines Logo
8:00 pm - 4:45 pmTLL-ORD
28h 45m2 stops
$391Scandinavian Airlines
Find Deal
mar., nov. 18 - mar., dic. 2
Scandinavian Airlines Logo
7:20 pm - 1:25 amORD-TLL
22h 05m1 stop
Scandinavian Airlines Logo
3:45 pm - 4:45 pmTLL-ORD
33h 00m1 stop
$421Scandinavian Airlines
Find Deal
dom., dic. 7 - mar., dic. 23
Scandinavian Airlines Logo
7:20 pm - 1:25 amORD-TLL
22h 05m1 stop
Scandinavian Airlines Logo
3:40 pm - 4:45 pmTLL-ORD
33h 05m2 stops
$426Scandinavian Airlines
Find Deal
dom., dic. 7 - mar., dic. 23
Multiple Airlines Logo
6:30 pm - 12:20 amORD-TLL
21h 50m3 stops
Multiple Airlines Logo
2:10 pm - 5:20 pmTLL-ORD
35h 10m3 stops
$549Multiple Airlines
Find Deal
lun., dic. 1 - jue., dic. 4
SWISS Logo
6:50 pm - 12:50 amORD-TLL
22h 00m1 stop
SWISS Logo
6:05 am - 4:20 pmTLL-ORD
18h 15m1 stop
$552SWISS
Find Deal
vie., nov. 7 - vie., nov. 14
Multiple Airlines Logo
2:00 pm - 6:15 pmORD-TLL
20h 15m3 stops
Multiple Airlines Logo
11:15 pm - 1:10 pmTLL-ORD
21h 55m2 stops
$561Multiple Airlines
Find Deal
mié., dic. 3 - sáb., dic. 6
United Airlines Logo
7:10 am - 1:10 pmORD-TLL
22h 00m2 stops
United Airlines Logo
6:15 am - 6:30 amTLL-ORD
32h 15m2 stops
$613United Airlines
Find Deal
sáb., dic. 13 - dom., dic. 21
United Airlines Logo
4:30 pm - 5:10 pmORD-TLL
16h 40m2 stops
United Airlines Logo
6:15 am - 5:12 pmTLL-ORD
18h 57m2 stops
$651United Airlines
Find Deal
mié., mar. 4 - dom., mar. 8
Turkish Airlines Logo
11:25 am - 2:25 pmORD-TAY
43h 00m2 stops
Turkish Airlines Logo
2:50 pm - 6:15 pmTAY-ORD
59h 25m2 stops
$870Turkish Airlines
Find Deal
vie., abr. 3 - mar., abr. 7
Turkish Airlines Logo
7:50 pm - 12:40 amORD-TAY
44h 50m2 stops
Turkish Airlines Logo
2:50 pm - 9:40 amTAY-ORD
26h 50m2 stops
$1,334Turkish Airlines
Find Deal
vie., abr. 3 - mar., abr. 7

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 18
ORD10:35 amChicago O'Hare Intl
15h 45m
2 stops
TLL10:20 amTallinn
Dec 2
TLL8:00 pmTallinn
28h 45m
2 stops
ORD4:45 pmChicago O'Hare Intl
$391
Find similar
Scandinavian Airlines
Dec 7
ORD7:20 pmChicago O'Hare Intl
22h 05m
1 stop
TLL1:25 amTallinn
Dec 23
TLL3:45 pmTallinn
33h 00m
1 stop
ORD4:45 pmChicago O'Hare Intl
$421
Find similar
Scandinavian Airlines
Dec 7
ORD7:20 pmChicago O'Hare Intl
22h 05m
1 stop
TLL1:25 amTallinn
Dec 23
TLL3:40 pmTallinn
33h 05m
2 stops
ORD4:45 pmChicago O'Hare Intl
$426
Find similar

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

Our best United Airlines deals on Chicago O'Hare Intl Airport to Estonia flight tickets
United Airlines
Dec 13
ORD7:10 amChicago O'Hare Intl
22h 00m
2 stops
TLL1:10 pmTallinn
Dec 21
TLL6:15 amTallinn
32h 15m
2 stops
ORD6:30 amChicago O'Hare Intl
$613
Find similar
United Airlines
Mar 4
ORD4:30 pmChicago O'Hare Intl
16h 40m
2 stops
TLL5:10 pmTallinn
Mar 8
TLL6:15 amTallinn
18h 57m
2 stops
ORD5:12 pmChicago O'Hare Intl
$651
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 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 octubre 14, 2025.
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

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

mar. 11/18

10:35 am-10:20 am

2 stops15h 45m

Tallinn

mar. 12/2

8:00 pm-4:45 pm

2 stops28h 45m

$391

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

dom. 12/7

7:20 pm-1:25 am

1 stop22h 05m

Tallinn

mar. 12/23

3:45 pm-4:45 pm

1 stop33h 00m

$421

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

dom. 12/7

7:20 pm-1:25 am

1 stop22h 05m

Tallinn

mar. 12/23

3:40 pm-4:45 pm

2 stops33h 05m

$426

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

lun. 12/1

6:30 pm-12:20 am

3 stops21h 50m

Tallinn

jue. 12/4

2:10 pm-5:20 pm

3 stops35h 10m

$549

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

vie. 11/7

6:50 pm-12:50 am

1 stop22h 00m

Tallinn

vie. 11/14

6:05 am-4:20 pm

1 stop18h 15m

$552

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

mié. 12/3

2:00 pm-6:15 pm

3 stops20h 15m

Tallinn

sáb. 12/6

11:15 pm-1:10 pm

2 stops21h 55m

$561

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

sáb. 12/13

7:10 am-1:10 pm

2 stops22h 00m

Tallinn

dom. 12/21

6:15 am-6:30 am

2 stops32h 15m

$613

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

mié. 3/4

4:30 pm-5:10 pm

2 stops16h 40m

Tallinn

dom. 3/8

6:15 am-5:12 pm

2 stops18h 57m

$651

ChicagoTartu

ORD - TAY

ORDTAY

Chicago O'Hare Intl

vie. 4/3

11:25 am-2:25 pm

2 stops43h 00m

Tartu

mar. 4/7

2:50 pm-6:15 pm

2 stops59h 25m

$870

ChicagoTartu

ORD - TAY

ORDTAY

Chicago O'Hare Intl

vie. 4/3

7:50 pm-12:40 am

2 stops44h 50m

Tartu

mar. 4/7

2:50 pm-9:40 am

2 stops26h 50m

$1,334

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

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 October. Flight prices, which tend to average around $439, are often lower during this time because this is during the off-season. If you’re not able to fly to Estonia in October, then April is your next best option. Flight prices from Chicago O'Hare Intl Airport to Estonia during April average around $548.

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

On average, the least expensive day to fly to Estonia from Chicago O'Hare Intl Airport 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 O'Hare Intl Airport 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 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

Direct flights

None
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.
Search flight deals

  • 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 $424Free CancellationRating
7.4
1,531 reviews
Search Scandinavian Airlines flights
FinnairPriceFrom $513Free CancellationRating
7.6
1,332 reviews
Search Finnair flights
United AirlinesPriceFrom $529Free CancellationRating
7.4
8,975 reviews
Search United Airlines flights
LufthansaPriceFrom $535Free CancellationRating
6.8
7,484 reviews
Search Lufthansa 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.

An easier way to manage your Estonia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
jue. 11/13
jue. 11/20
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Estonia

Popular cities in Estonia

Popular flights according to clicks in the last 7 days on momondo
Flights to Tallinnfrom $342
Flights to Tartufrom $614
Flights to Kuressaare