ORD - TLL

$523 Find Cheap Flights from Chicago to Tallinn

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Tallinn departing on 8/21. 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.
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KAYAK searches hundreds of travel sites at once for deals on flights to Tallinn

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Tallinn, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Tallinn, as well as popular online travel agencies
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Cheap Flights from Chicago to Tallinn

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Tallinn 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.

Recent round-trip flight deals from Chicago to Tallinn

KAYAK's recommended round-trip deals from the most popular airlines that fly from Chicago to Tallinn.
Discover the best prices for you by selecting your travel dates on KAYAK.
Scandinavian Airlines Logo
7:15 pm - 1:25 amORD-TLL
22h 10m1 stop
Scandinavian Airlines Logo
7:00 am - 4:10 pmTLL-ORD
17h 10m2 stops
$523Scandinavian Airlines
Find Deal
Thu, Aug 21 - Mon, Aug 25
Scandinavian Airlines Logo
7:15 pm - 7:30 pmORD-TLL
16h 15m2 stops
Scandinavian Airlines Logo
8:50 pm - 4:10 pmTLL-ORD
27h 20m2 stops
$525Scandinavian Airlines
Find Deal
Thu, Aug 21 - Sun, Aug 24
SWISS Logo
7:05 pm - 1:30 amORD-TLL
22h 25m1 stop
SWISS Logo
6:00 am - 12:10 pmTLL-ORD
14h 10m1 stop
$575SWISS
Find Deal
Mon, Aug 11 - Fri, Sep 12
Lufthansa Logo
9:40 pm - 6:25 pmORD-TLL
12h 45m1 stop
Lufthansa Logo
6:00 am - 12:55 pmTLL-ORD
14h 55m1 stop
$582Lufthansa
Find Deal
Sun, Jul 20 - Thu, Aug 14
Lufthansa Logo
3:35 pm - 6:25 pmORD-TLL
18h 50m1 stop
Lufthansa Logo
6:00 am - 12:55 pmTLL-ORD
14h 55m1 stop
$583Lufthansa
Find Deal
Tue, Jul 22 - Thu, Aug 14
United Airlines Logo
10:30 pm - 12:20 amORD-TLL
17h 50m1 stop
United Airlines Logo
6:00 am - 12:55 pmTLL-ORD
14h 55m1 stop
$587United Airlines
Find Deal
Mon, Jul 21 - Thu, Aug 14
United Airlines Logo
3:00 pm - 6:00 pmORD-TLL
19h 00m2 stops
United Airlines Logo
6:00 am - 12:55 pmTLL-ORD
14h 55m1 stop
$591United Airlines
Find Deal
Tue, Jul 22 - Thu, Aug 14
SWISS Logo
2:20 pm - 1:30 amORD-TLL
27h 10m1 stop
SWISS Logo
6:00 am - 12:10 pmTLL-ORD
14h 10m1 stop
$635SWISS
Find Deal
Sun, Jul 20 - Sat, Aug 16
Finnair Logo
5:40 pm - 4:10 pmORD-TLL
14h 30m2 stops
Finnair Logo
10:55 am - 7:33 pmTLL-ORD
16h 38m2 stops
$728Finnair
Find Deal
Wed, Jun 4 - Tue, Jun 17
Finnair Logo
8:30 pm - 7:35 pmORD-TLL
15h 05m2 stops
Finnair Logo
6:00 am - 3:45 pmTLL-ORD
17h 45m2 stops
$735Finnair
Find Deal
Wed, Jun 4 - Thu, Jun 19
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KAYAK's insights & trends for Chicago to Tallinn flights

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

What’s the cheapest day of the week to fly from Chicago to Tallinn?

The average price of all round-trip flights from Chicago O'Hare Intl Airport to Tallinn clicked on KAYAK for each day over the last 12 months.

For Chicago to Tallinn, Wednesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Tallinn back to Chicago, the best deals are generally found on Thursday, with Saturday being the most expensive.

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

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 Tallinn, 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 Tallinn is December, where tickets cost $553 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,112 and $988 respectively.

How far in advance should I book a flight from Chicago O'Hare Intl Airport to Tallinn?

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

To get a below average price on the flight from Chicago O'Hare Intl Airport to Tallinn, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonNovember
High seasonFebruary
Cheapest flight$523
Best time to beat the crowds but there is an average 6% increase in price.
Most popular time to fly and prices are also 17% lower on average.
Flight from Chicago to Tallinn

When to book flights from Chicago to Tallinn

Are your dates flexible? Find out the best times to travel from Chicago to Tallinn based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago to Tallinn flights

  • What is the cheapest flight from Chicago O'Hare Intl Airport to Tallinn?

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Tallinn was $594 for a one-way ticket and $523 for a round-trip.

  • Do I need a passport to fly between Chicago and Tallinn?

    Yes

  • Which airports will I be using when flying from Chicago to Tallinn?

    When flying out of Chicago you will be using Chicago O'Hare Intl. You will be landing at Tallinn, also known as Tallinn Ulemiste.

  • Which aircraft models fly most regularly from Chicago to Tallinn?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Chicago to Tallinn?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Chicago and Tallinn, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Chicago to Tallinn, Finnair or United Airlines?

    The two airlines most popular with KAYAK users for flights from Chicago to Tallinn are Finnair and United Airlines. With an average price for the route of $772 and an overall rating of 7.6, Finnair is the most popular choice. United Airlines is also a great choice for the route, with an average price of $680 and an overall rating of 7.4.

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

    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 Tallinn.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Tallinn from Chicago 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 Tallinn?

    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 to Tallinn with an airline and back to Chicago with another airline. Booking your flights between Chicago and TLL can sometimes prove cheaper using this method.

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

    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 to Tallinn from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top 5 airlines serving from Chicago to Tallinn

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Tallinn. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Chicago to Tallinn? 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.
7.6
LOTOverall score based on 1069 reviews
7.6Boarding
7.2Food
7.5Comfort
7.0Entertainment
8.1Crew
Airline reviews

The customer service rep on chat refused carrying golf set at no charge that is customary for LOT and others. I wanted yo carry just ONE club not even full set! Web check in was nightmare. Most horrible lounge at warsaw. To call it business class is a BIG exaggeration. Rude staff warsaw to nyc. Seats uncomfortable and not flat as is now customary. Bad content and entertainment system.

2.0 MediocreAnonymous, Apr 2025DEL - WAW
Read more LOT reviews

The customer service rep on chat refused carrying golf set at no charge that is customary for LOT and others. I wanted yo carry just ONE club not even full set! Web check in was nightmare. Most horrible lounge at warsaw. To call it business class is a BIG exaggeration. Rude staff warsaw to nyc. Seats uncomfortable and not flat as is now customary. Bad content and entertainment system.

It was was okay but the seat was stiff and hard to sit on it!!

Seats were so uncomfortable, my butt hurts so much, I wish they have more cushions,it really was horrible, Except that, Stewarts were polite food was decent

Plane is super outdated, seats not that comfortable for business class. Lounge also out dated. They need to catch up to 2024. Don’t think I’d ever fly again.

Everything was good, flight was smooth and on time Like service

Boarding was impossible to navigate. Had mobility issues and a business class ticket, but still boarded almost at the end of the queue because there was absolutely no organization or assistance.

Aircraft was new. Food so so, especially vegetarian was very disappointing.

Very courteous staff. Abnoxious passenger in front of me who reclined her seat all the way without warning and without considering the person behind her. My flight ORD-WAW was so much more pleasant because of the courtesy of the passenger in front of me.

LOT told me on my first flight that I had missed boarding my second flight and told us to go to a service desk to reschedule. We then were told our flight was still boarding and that we had to run through the Warsaw airport to catch it which is just a long long runway airport. The workers at the airport were not helpful at all and you have to go through two passport checkpoints. I have asthma and was almost dead when I got on the plane and no one helped or gave us water or even acknowledged us. The flight was fine - the crew members are not friendly so it’s a very functional flight at best. Also my bag didn’t make it to my final destination.

LOT was very disorganized at Istanbul airport with no communication with travelers. Our flight was delayed over and hour and a half and there were no announcements, displays or anything about it. It almost left me missing my second flight!

Boarding uncomfortable. Stewardess said I would have to check my carry on as there was no room in the overhead bins. Another passenger helped me find a spot.

Any flight that lands safely is a good flight. However our leg from Helsinki was delayed 1 hour with no explanation. The delay would not allow us to make our connection to Cincinnati. I was informed by American Airlines that our Cincinnati flight was rescheduled for the following day. I immediately made a non refundable hotel reservation in Dallas. Upon exiting the plane at Dallas I was given a hotel voucher. Nice, but I can't get a refund on the hotel I booked. A little communication would have been helpful. Food on Finnair is below quality of Korean Air.

The cabin crew really looked like they wanted to be somewhere else. They weren't really interested in providing an attentive service to full fare paying passengers at all. However the Captiain's in flight announcements were relaxed and very entertaining.

Crew were professional and responsive. Food was mediocre and breakfast could do with revampinmg

Food was very ordinary for premium economy, very small portions.

i dont know WHY they call it business class. the seats are NOT significantly wider than economy seats, they just do not let the middle seats be beepked to give the illusion of more space between passengers. the seats do NOT recline any more than economy seats either. the only real difference is the full meal served to business (vs none for economy). I would rather have a wider, lie flat ACTUAL business class seat with no food for a 3 hr flight. this was pretty disappointing to say the least.

There wore nice leather like sits, in my opinion seats lay out bit tight . Crew was great they did averything possible to make averywone comfortable as possible, food was, think worst I ever head on flight, head chicken and yellow rice. Ice cream was a nic treat.

Our previous flight was delayed but they waited for us to board.

Flight was delayed, short time connection to next flight but we make it, service was good, worth to fly just to try thair on board blueberry juce. Eccelent communication with airline.

My American Airlines flight was deleted and you guys never let me know

A bit rush for transit. Food and entertainment are not available

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

I do prefer to fly United and have always had excellent service, except for bad weather. Flights are on time and staff is alway curtious and helpful

They switched out gate from terminal 1 to terminal two ten minutes before boarding. So we had to make a 20 min crazy fast walk to a different terminal. Then we boarded the plane and waited for over 40 minutes until push back. Brutal

My flight was scheduled for about 6:05 departure. There were 11 gate changes from 4-7pm and the flight was 3 hours delayed due to operational issues. The plane taxied around the airport for about half an hour before stopping to be de-iced. It would have been nice if we were alerted of the plan to de-ice prior to the 30 minute drive around the airport. The flight attendant was friendly, which was the only redeeming thing about this flight. As a former flight attendant for United, I was extremely disappointed.

Delays took 2hours and thirty minutes making me miss my connecting flight and make me sit in the Chicago airport for 9 hours

Had a short delay once we boarded the aircraft in Chicago, but it was fixed in no time flat then we were on our way. The pilot was able to make up the time lost and we landed 5 minute later then schedualed . Great service

Our seats were all the way in back of the plane,

The seats on this flight were almost roomy enough to be the basic amount needed for human existence. I think my favorite part of this flight was it landed at an A gate, which was the most palatial part of Sea-Tac I've ever seen - a massive improvement from the S gates.

Very helpful in getting us off the plane first to make a tight connection.

The seats were really cramped. The high backs on the chairs made you feel claustrophobic.

Boarding was chaotic and the flight left late but arrived at a decent time. This may have been because of the sxsw festival that was going on.

The flight got canceled and you just send an email in the middle of the night and no solution to how to get on the next flight or provide other solutions.

You cost me my time and did not compensate properly. Gfy.

Missed a connecting flight and SAS was at fault. I was awarded a $20 voucher in exchange for 8 hours of my time? Gfy.

Seat was lumpier than I’ve ever remembered it to be although comfortable when tilted back. I don’t recall being that hungry after being served food from SAS before. Flight attendant on the second flight to Aalborg seemed to be having a bad day.

Please see my comments for the flight from Chicago to Copenhagen

It was ok. Vegan meal was good, however no complimentary alcoholic beverages.

compared to other business class journeys, the hard product is okay..but the service of the staff is underwhelming. They are very senior and seems only to care for the colleagues they upgraded to biz and to themselves , I was not offered food before after 1 1/2 -2 hours, and the menu had one dish and the food was not that. And i could not get the breakfast.. just coffee and a croissant. i have type 1 diabetes .. luckily i had my own food. was low in sugar after sleeping and woke up 55 minutes before landing .. not able to get food anymore !! so bad business experience!

The row of seats were so cramped it was difficult to get in and out of your seat. I even upgraded. A long flight and sad accommodations 😵‍💫 the shorter flight was very comfortable and the seating was spacious

I bought a ticket and paid for for our luggage but I had to pay for my luggage again. I’m so disappointed! We had a 30 min delay and because of that we missed our connecting flight and were told that we would be on the next flight (9am flight ) but we were landed we were booked at 12pm flight. I had a little baby w me, it was very stressful. I begged to leave at 10 am at least. I was emailed that we get a voucher but they didn’t work when we were at a breakfast store. I’ve been always happy w Lufthansa but this time was awful.

Good service … bus transfer upon arrival from plane to terminal: atrocious!!!

helpful and friendly. The Lufthanza people I dealt with before my holiday were so unhelpful by comparison.

We had a 1 1/2 hour delay before we left Denver. When we arrive to Frankfort, they didn’t announce that people with connecting flights to exit the plane first. My next flight was already boarding when we we taxiing in to the gate. I waited another 10 minutes to get off the plane. I had to run to catch my next flight. I mean run! I made it with one minute to spare, but my luggage did not. My luggage came two hours later on a different flight.

My flight was late from US to Frankfurt so I missed my connecting flight flight and I had to wait for long to catch the next flight which was very tiring. Otherwise everyone was very nice.

It would have been nice if my luggage had made it onto my connecting flight as well. Now I have to wait for my luggage to be delivered and that might take a while, which certainly put a damper on the entire experience.

Crew was not happy. Very uncomfortable seats. When person leans back in front of you the screen is too close to me. Food was awful.

They lost my luggage and despite all follow ups through emails and phone calls they don’t give me an update

Everything went really well. Snacks could be better and there was no tea/coffee service after dinner. Crew was helpful and friendly.

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

Information on your arrival and departure airports

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