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$270+ Cheap flights from O'Hare Intl (ORD) to Estonia

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TLL
Mar 4 — Mar 111
Wed 3/4
Wed 3/11
1 adult, Economy
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Cheap flight deals from O'Hare Intl to Estonia

Cheapest flights from O'Hare Intl to Estonia
Explore the most affordable flight options available from O'Hare Intl to Estonia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 2, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2410:55 pm
ORD
-
TLL
1 stop11h 55m
LOT
Tue 3/316:25 pm
TLL
-
ORD
1 stop33h 25m
LOT
Deal found 2/1$453
This Gotogate deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2412:50 pm
ORD
-
TLL
2 stops17h 00m
Multiple Airlines
Tue 3/311:50 pm
TLL
-
ORD
1 stop14h 05m
Multiple Airlines
Deal found 1/31$469
This Mytrip deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/181:55 pm
ORD
-
TLL
2 stops23h 10m
Multiple Airlines
Wed 3/256:00 am
TLL
-
ORD
1 stop22h 05m
Multiple Airlines
Deal found 1/31$473
This Orbitz deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2412:50 pm
ORD
-
TLL
2 stops17h 00m
Air Canada
Tue 3/317:30 am
TLL
-
ORD
2 stops19h 17m
Air Canada
Deal found 1/31$489
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/187:30 pm
ORD
-
TLL
1 stop21h 25m
United Airlines
Wed 3/251:55 pm
TLL
-
ORD
1 stop14h 10m
United Airlines
Deal found 1/31$492
This oojo deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:15 pm
ORD
-
TLL
1 stop31h 30m
Scandinavian Airlines
Sun 9/133:50 pm
TLL
-
ORD
1 stop32h 20m
Scandinavian Airlines
Deal found 2/1$499
This United Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/237:30 pm
ORD
-
TLL
1 stop21h 25m
United Airlines
Fri 4/32:00 pm
TLL
-
ORD
2 stops31h 00m
United Airlines
Deal found 1/31$500
This Kiwi.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/2410:55 pm
ORD
-
TLL
1 stop11h 55m
LOT
Sun 4/52:20 pm
TLL
-
ORD
1 stop13h 30m
LOT
Deal found 1/31$507
This Booking.com deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/2511:35 pm
ORD
-
TLL
1 stop17h 20m
Lufthansa
Mon 4/61:50 pm
TLL
-
ORD
1 stop31h 05m
Lufthansa
Deal found 1/31$508
This Turkish Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/68:20 pm
ORD
-
TAY
2 stops57h 55m
Turkish Airlines
Tue 2/106:00 am
TAY
-
ORD
2 stops44h 25m
Turkish Airlines
Deal found 1/31$1,586

Find flight deals from O'Hare Intl to Estonia

Keep the following information in mind while searching for O'Hare Intl to Estonia flight deals. Data was last updated February 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$453
(Kiwi.com)

One-way from

$270
(American Airlines)

Popular in

September

Cheapest in

February

Average price

$487
Provider with most accurate pricing for Chicago (CHI)-Tallinn flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Tallinn flights.
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From Chicago O'Hare Intl to Estonia
Search Deals
One-way flight from Chicago O'Hare Intl to Estonia
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl 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, Cheapflights users made 2,558,603 searches. Data last updated February 2, 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

O'Hare Intl

Fly to

Estonia

Route

Depart

Return

Price

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 3/24

10:55 pm-5:50 pm

1 stop11h 55m

Tallinn

Tue 3/31

6:25 pm-7:50 pm

1 stop33h 25m

$453

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Wed 3/18

1:55 pm-8:05 pm

2 stops23h 10m

Tallinn

Wed 3/25

6:00 am-9:05 pm

1 stop22h 05m

$473

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 3/24

12:50 pm-12:50 pm

2 stops17h 00m

Tallinn

Tue 3/31

7:30 am-6:47 pm

2 stops19h 17m

$489

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Wed 3/18

7:30 pm-11:55 pm

1 stop21h 25m

Tallinn

Wed 3/25

1:55 pm-9:05 pm

1 stop14h 10m

$492

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Mon 3/23

5:05 pm-5:10 pm

1 stop17h 05m

Tallinn

Thu 4/2

1:55 pm-1:05 pm

2 stops31h 10m

$500

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Mon 3/23

7:30 pm-11:55 pm

1 stop21h 25m

Tallinn

Fri 4/3

2:00 pm-1:00 pm

2 stops31h 00m

$500

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 3/24

12:50 pm-1:10 pm

2 stops17h 20m

Tallinn

Fri 4/3

2:00 pm-1:00 pm

2 stops31h 00m

$504

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Wed 3/25

11:35 pm-11:55 pm

1 stop17h 20m

Tallinn

Mon 4/6

1:50 pm-12:55 pm

1 stop31h 05m

$508

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Sun 4/26

5:10 pm-1:40 pm

1 stop12h 30m

Tallinn

Sun 5/3

5:45 am-7:50 pm

1 stop22h 05m

$509

ChicagoTallinn

ORD - TLL

ORDTLL

Chicago O'Hare Intl

Tue 5/19

9:30 pm-3:45 pm

1 stop10h 15m

$270

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/31

Showing 1-10 of 16 results
1
2

Best time to book a flight from O'Hare Intl to Estonia

Have a flexible travel schedule? Discover the best time to fly to Estonia from O'Hare Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to Estonia

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Estonia?

Currently, April is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Estonia (average of $431). Flying from Chicago O'Hare Intl Airport to Estonia in July is currently the most expensive (average of $808). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Estonia

Get insights into the airlines that provide service to Estonia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Estonia. Reviews last updated February 2, 2026.
See what other customers who have flown with Finnair, United Airlines, and Scandinavian Airlines from Chicago O'Hare Intl Airport to Estonia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,357 reviews

Crew

8.2

Overall

7.6

Boarding

7.7

Food

6.7

Comfort

7.5

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(
Finnair
7.6
Good
1,357 reviews
Finnair
7.6
Good
1,357 reviews

Crew

8.2

Overall

7.6

Boarding

7.7

Food

6.7

Comfort

7.5

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(
United Airlines
7.4
Good
9,226 reviews
Finnair
7.6
Good
1,357 reviews

Crew

8.2

Overall

7.6

Boarding

7.7

Food

6.7

Comfort

7.5

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(
Scandinavian Airlines
7.3
Good
1,676 reviews
Finnair
7.6
Good
1,357 reviews

Crew

8.2

Overall

7.6

Boarding

7.7

Food

6.7

Comfort

7.5

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(
Lufthansa
6.8
Okay
7,758 reviews
Finnair
7.6
Good
1,357 reviews

Crew

8.2

Overall

7.6

Boarding

7.7

Food

6.7

Comfort

7.5

Entertainment

6.9

Reviews

1 / 20
6.0
Good

Matt,May 2025

LHR - MIA

Difficult to say what I liked, cabin crew very miserable, looked like they were sick of the job and it was their 50th flight if the day, long wait between drinks and food was somewhat very budget. We did travel in economy but with such a long flight you'd expect this type of service with Ryanair for a two/three hour flight to benidorm, not 8 hours over the Altantic.. entertainment was limited with films and difficult to hear even with headphones on. I think the pilot spoke once and I couldn't hear him over the noise in the cabin. I'd say to say you get what you pay for but my opinion I've flown with a much better airlines. Sorry...you dud ask :(

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Estonia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Chicago O'Hare Intl Airport to Estonia?

    A quick flight from Chicago O'Hare Intl Airport to Estonia can take about 11h 55m. LOT provides one of the quickest options available for as low as $453. The distance between Chicago O'Hare Intl Airport and Estonia is about 4456 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from O'Hare Intl to Estonia that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Estonia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Estonia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Estonia.

  • Can I find deals for business class flights from O'Hare Intl to Estonia?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Estonia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Estonia?

    Currently, April is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Estonia (average of $431). Flying from Chicago O'Hare Intl Airport to Estonia in July is currently the most expensive (average of $808). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for O'Hare Intl to Estonia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from O'Hare Intl to Estonia

Discover the top 4 airlines that operate flights from O'Hare Intl to Estonia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$433Average$559FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$486Average$680FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$539Average$848FlexibilityNo cancel feeOn-time76%
FinnairCheapest$678Average$1,024FlexibilityNo cancel feeOn-time76%

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