$344 Find Cheap Flights from Chicago to Estonia

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Estonia departing on 8/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Book Cheap Chicago to Estonia Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Estonia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Estonia

Wed, Sep 30 - Fri, Oct 9
Turkish Airlines Logo
11:25 am - 10:20 am
ORD
-
TLL
14h 55m
1 stop
Turkish Airlines Logo
11:15 am - 9:40 am
TLL
-
ORD
30h 25m
1 stop
$547Turkish Airlines
Mon, Apr 27 - Tue, May 12
Turkish Airlines Logo
8:10 pm - 10:20 am
ORD
-
TLL
30h 10m
1 stop
Turkish Airlines Logo
7:35 pm - 9:40 am
TLL
-
ORD
22h 05m
1 stop
$560Turkish Airlines
Sat, Oct 3 - Wed, Oct 14
Turkish Airlines Logo
8:10 pm - 10:20 am
ORD
-
TLL
30h 10m
1 stop
Turkish Airlines Logo
11:15 am - 9:40 am
TLL
-
ORD
30h 25m
1 stop
$590Turkish Airlines
Fri, Sep 4 - Sun, Sep 13
Turkish Airlines Logo
11:25 am - 6:40 pm
ORD
-
TLL
23h 15m
1 stop
Turkish Airlines Logo
7:35 pm - 9:40 am
TLL
-
ORD
22h 05m
1 stop
$612Turkish Airlines
Tue, Apr 28 - Fri, May 15
Scandinavian Airlines Logo
10:15 am - 3:15 pm
ORD
-
TLL
21h 00m
2 stops
Scandinavian Airlines Logo
11:20 am - 4:10 pm
TLL
-
ORD
12h 50m
1 stop
$631Scandinavian Airlines
Tue, Apr 28 - Fri, May 15
Scandinavian Airlines Logo
6:50 am - 3:15 pm
ORD
-
TLL
24h 25m
2 stops
Scandinavian Airlines Logo
7:00 am - 4:10 pm
TLL
-
ORD
17h 10m
2 stops
$638Scandinavian Airlines
Mon, May 4 - Wed, May 13
Scandinavian Airlines Logo
1:06 pm - 3:15 pm
ORD
-
TLL
18h 09m
2 stops
Scandinavian Airlines Logo
11:20 am - 4:10 pm
TLL
-
ORD
12h 50m
1 stop
$644Scandinavian Airlines
Tue, Apr 28 - Mon, May 18
Scandinavian Airlines Logo
6:50 am - 10:45 am
ORD
-
TLL
19h 55m
2 stops
Scandinavian Airlines Logo
8:20 pm - 4:10 pm
TLL
-
ORD
51h 50m
2 stops
$668Scandinavian Airlines
Mon, Apr 27 - Tue, May 12
Scandinavian Airlines Logo
7:15 pm - 10:45 am
ORD
-
TLL
31h 30m
1 stop
Scandinavian Airlines Logo
4:00 pm - 4:10 pm
TLL
-
ORD
32h 10m
2 stops
$669Scandinavian Airlines
Mon, Apr 27 - Tue, May 12
Scandinavian Airlines Logo
6:04 am - 3:15 pm
ORD
-
TLL
25h 11m
2 stops
Scandinavian Airlines Logo
6:15 am - 10:35 pm
TLL
-
ORD
24h 20m
2 stops
$671Scandinavian Airlines
Booking Insights

KAYAK's insights & trends for Chicago to Estonia flights

Get data-powered insights and trends into flights from Chicago to Estonia to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Chicago O'Hare Intl Airport to Estonia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago O'Hare Intl Airport to Estonia, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago O'Hare Intl Airport to Estonia is January, when tickets cost $442 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,024 and $986 respectively.

Good to know

Low seasonDecember
Cheapest flight$344
Most popular time to fly with an average 46% increase in price.
Flight from Chicago to Tallinn

FAQs - booking Estonia flights

  • How does KAYAK find such low prices on flights from Chicago to Estonia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to Estonia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to Estonia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Chicago to Estonia is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago to Estonia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Chicago to Estonia with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to Estonia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Chicago to Estonia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Chicago to Estonia

 
Need help choosing which airline to fly with from Chicago to Estonia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9567 reviews
7.1Entertainment
7.3Comfort
8.1Crew
6.6Food
7.7Boarding
Airline reviews

Poor communication, flight was delayed for preventable reasons. I missed my connection.

2.0 MediocreAaron, Apr 2026
ORD - BNA
Read more United Airlines reviews

Poor communication, flight was delayed for preventable reasons. I missed my connection.

The boarding timing needs to be improved. The flight was delayed again because it took way too long to board. I was already exhausted from sleeping at the airport and spending all day there due to delay from my previous flight that connected in Chicago.

Great until we got to FRA. The next trip leg we were put in Business Class where seats had minimal padding!!!! They were awful and United Airlines needs to have their Lufthansa partner up their game or I won’t fly with them again!!

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

Terrible, if possible won't be flying again anytime soon!

Efficient boarding and early departure. Very smooth flight. Early arrival in ATL. Great flight.

Smooth and easy boarding, comfortable for the entire 5 hour flight, and the seat back entertainment was great! I appreciated all the features, from location info and maps, movies, the ability to connect with Bluetooth headphones, and good selection of movies. Food was good, normal airline snacks (I didn’t purchase anything)

Awful. No counter attendants. No dinner offered due to delays.

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

The stewardess was incredibly rude. The gave you only one drink with dinner.

Cancelled flight, wasn't refunded paid selected seats. Poor customer service. Called airline and they didn't realize the flight was cancelled until several hours after the email notice was sent.

The worst with the trip was the space in economy, my knees are still hurting. There was no way to control personal air by turning a knob above you, it was way to hot on both rides. During the night flight they allowed 2 people from across the aile which was narrow to sit and talk for 7 hours while also using tablets and the flashlight from their phones pointing into the row where I sat at times. They allowed people with way too large baggage to bring onboard. I paid way too much for the ticket ($1,364} for economy. Kayak misinformed me to get cancellation insurance that was only valid for a very short time (less than 12 hours) and was over one hundred dollars. Hotel booking was incorrect, I had the room booked myself at the hotel, only double or larger rooms available which I paid over 400 dollars for. I will never fly with SAS again unless there is no other alternative.

Crew members were excellent. The seat wasn’t the best as well as a food options.

5 of my 7 pieces of luggage are missing and they cant call to find out where it is. I have to fill out a form and wait for them to mail it to me in several days (if they find it). That does not work for my travel itinerary. I need my full ticket cost refunded please.

Fantastic. The only thing - out of my six luggage one was lost in Copenhagen, however it was delivered Home 3 Days later so all great..

The crew was friendly, the flight was pleasant. Thank you for your service!

Our trip plan from Kayak stated we were flying SAS. That was not true. The first leg was a Delta flight. We wasted 25 minutes before finding out to check in with the correct airline. Then our SAS flight for the second leg arrived 25 minutes late, and our third leg flight with SAS closed the gate knowing the flight delay was SAS’s fault, and that this flight would only be backed up 5 minutes. The final kicker was that between Delta and SAS, they lost all our checked luggage.

Flight was completely full January 9th? I problem i had the stewardess was bumping into me constantly walking by? very annoying.. on Austrian air I dint have this issue at all...

Amazing! Everyone was so nice and the food was so good!!

Was never allowed on and not refunded the full amount of the ticket plus charged a $300 processing fee.

Terrible. Lost our luggage for 4 days. Did not advise passengers there was a strike in Barcelona Airport and had zero personnel on hand at airport to advise passengers on where to go to file claims. We had to fend for ourselves. No assistance at all other than an online claims submission process that we had to find out about on our own.

Lufthansa cancelled our flight from Los Angeles to Naples Italy on March 10 for scheduled flight on March 12 Very stressful experience trying to arrange alternatives. Will never fly again with Lufthansa

Everything could have been better. What needed to be wrong with United went wrong

The staff was bit rude when I asked for an extra drink after one beer, asked for one wine glass.

Very good, i got two seats for myself, and was comfortable with the blanket i got

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

Economy Priority seats are extremely uncomfortable. There is no way to escape the boxed in feeling, particularely because the distance between to rows are too short, the hard edge of the front row is keeping legs confined. There is no elevated place to put your feet. I am of average, European size.

Terrible. Both flights were significantly delayed, no luggage, made me check my small bag when many, many others had much larger carry-ons, not even a bottle of water . . . I will not fly Discover Airlines again.

I was deceived on the Kayak site expecting a ticket, but instead finding a "standby" reservation. When I tried to change the ticket, I paid almost twice the price of the original ticket. Then, the airline refused to give me the reserved seat I had chosen and paid for. I think I deserve a refund for this leg of my trip because I was doubly charged and did not receive what I had paid for. I put in a complaint with Lufthansa because the ticket was sold originally sold as a flight they listed. Someone here needs to take responsibility.

Everything you need to know for your flight from Chicago to Estonia

Information on your arrival and departure airports