ORD - TLL

$355 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 2/18. 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

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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Flight Deals

Cheap Flights from Chicago to Tallinn (ORD-TLL)

 
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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Tallinn

Wed, Feb 18 - Wed, Mar 4
Scandinavian Airlines Logo
7:20 pm - 11:40 pmORD-TLL
20h 20m2 stops
Scandinavian Airlines Logo
7:00 am - 4:45 pmTLL-ORD
17h 45m2 stops
$355Scandinavian Airlines
Find Deal
Wed, Feb 18 - Wed, Feb 25
Scandinavian Airlines Logo
7:20 pm - 10:20 amORD-TLL
31h 00m1 stop
Scandinavian Airlines Logo
3:40 pm - 4:45 pmTLL-ORD
33h 05m2 stops
$356Scandinavian Airlines
Find Deal
Thu, Feb 19 - Wed, Mar 4
Scandinavian Airlines Logo
7:20 pm - 3:10 pmORD-TLL
11h 50m1 stop
Scandinavian Airlines Logo
11:00 am - 4:45 pmTLL-ORD
13h 45m1 stop
$366Scandinavian Airlines
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Tue, Feb 17 - Tue, Mar 3
 Logo
6:25 pm - 4:50 pmORD-TLL
14h 25m1 stop
 Logo
6:15 am - 3:20 pmTLL-ORD
17h 05m1 stop
Tue, Feb 17 - Thu, Mar 5
United Airlines Logo
4:20 pm - 4:50 pmORD-TLL
16h 30m1 stop
United Airlines Logo
6:20 am - 8:05 pmTLL-ORD
21h 45m1 stop
$522United Airlines
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Tue, Feb 17 - Tue, Mar 3
Lufthansa Logo
4:20 pm - 4:50 pmORD-TLL
16h 30m1 stop
Lufthansa Logo
6:15 am - 3:20 pmTLL-ORD
17h 05m1 stop
$535Lufthansa
Find Deal
Tue, Feb 17 - Tue, Mar 3
Lufthansa Logo
4:20 pm - 4:50 pmORD-TLL
16h 30m1 stop
Lufthansa Logo
6:15 am - 6:21 pmTLL-ORD
20h 06m2 stops
$537Lufthansa
Find Deal
Wed, Sep 24 - Wed, Oct 1
Finnair Logo
1:20 pm - 12:30 pmORD-TLL
15h 10m2 stops
Finnair Logo
10:00 am - 7:15 pmTLL-ORD
17h 15m2 stops
$541Finnair
Find Deal
Tue, Feb 17 - Mon, Mar 2
United Airlines Logo
4:20 pm - 1:10 pmORD-TLL
12h 50m1 stop
United Airlines Logo
6:05 pm - 6:29 pmTLL-ORD
32h 24m2 stops
$547United Airlines
Find Deal
Fri, Nov 14 - Mon, Dec 1
 Logo
6:50 pm - 12:50 amORD-TLL
22h 00m1 stop
 Logo
6:05 pm - 1:10 pmTLL-ORD
27h 05m1 stop
Booking Insights

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.

How much is a round-trip flight from Chicago O'Hare Intl Airport to Tallinn?

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 April, where tickets cost $548 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,030 and $919 respectively.

Good to know

Low seasonMarch
Cheapest flight$355
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 47% increase in price.
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 $355 for a round-trip ticket.

  • 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.

  • 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?

    SkyTeam, Star Alliance, 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 $732 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.

Reviews of the top 4 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
FinnairOverall score based on 1320 reviews
7.5Comfort
8.1Crew
6.9Entertainment
7.6Boarding
6.7Food
Airline reviews

It was okay. The airplane was a little smaller than a flight from Thailand to Helsinki.

6.0 GoodAnonymous, Jul 2025HEL - DFW
Read more Finnair reviews

It was okay. The airplane was a little smaller than a flight from Thailand to Helsinki.

Wish that everyone would board the back of the plane first. Also let kids on first. The gate wasn’t open at arrival and we waited 45 minutes to takeoff. They made up for time in the air.

This was an absolutely exceptional flight. The flight attendants were extremely attentive and very friendly. They seemed to go out of their way to make us comfortable and to make sure that we had everything we needed., We were in business and were very happy with the size and the details for our pods. We would definitely recommend Finnair and will definitely be flying with them again.

We had an excellent trip with Finnair. This was our first time and we’re very pleased. The only issue was with the boarding - it was a little bit confusing and needs a little bit of streamlining.

Crew very lovely. Arrived an hour late due to bad weather. We were given new tickets to an other flight but it could have been organised better, so we did not have to run through the whole airport to.

Flight delayed over an hour. They said they would hold our connection but then did not.

Major problems checking in at Alaska counter. They could not find our booking code because it came from Finnair.

Do not use KAYAK or Finair for future travel. Unless you purchase the tickets directly from the airline, you were going to have a difficult time checking in. Kayak canceled my flights twice and ended up causing great difficulty in me getting back from Europe because they double sold my tickets between American Airlines and Finair. The event caused significant delays and led to me having to rebook my flights.

The staff were all particularly great. The plane was clean and fresh. The bassinet worked great. It was all very nice.

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.

Will not recommend SAS for business travel. Food was so-so. Service was very good. First leg was very good. Second leg from Copenhagen to Barcelona was terrible. We paid a LOT for business class and to have seats worse than most coach seats with no entertainment and no charging available for 1/3rd of the whole trip was not acceptable. Very disappointing. I thought they were coming back in the U.S. with style, NOT YET.

I do not have a problem with the airline but both my two suitcases that were supposed to go from Hawaii to Copenhagen didn’t get on the plane in Seattle. I arrive on Monday the 21st at 10:30 in the morning. I did not get my two suitcases before Friday late afternoon that is unacceptable.

Love thiscsirlibe. So civilized and kind. Good food. Good treatment. On time. Excellent communication.

No choice of food. Needed to pay more even for a can of coke!!!

The seats were really close together and hard to get comfortable. The food was okay. The cheese was amazing! I loved the cold towels they gave us.

When my flight was changed from delays they were quick to rebook me.

I really enjoyed how clean and big the aircraft was, as well as how friendly the crew was.

Airline left me stranded in the U.S. gave me an unrequested refund of 40% of booking and canceled my trip back! When I asked why, the said “we don’t have to tell you why”. “But you can rebook”. Never again! Paid 2x and rebooked on Austrian. What a joke!

Painful seats for a 10 hour flight. There’s a very hard flat board in the seat that goes up to half the back and after 7 hours it gets impossible to find the right position to avoid the pain.

I paid for the seat with more leg room but on the day of my departure my seat was changed. I brought it to the airline costumer service and he was able to change it back. The person sitting next to me had the same exact issue.

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

We had a layover from YVR to Denver. We bought 4 bottles of Absolut Vodka at the YVR Duty Free for $116.20, after going through security and American Customs Pre Clearance at YVR, Vancouver. When we landed in Denver, United put us behind the American Customs as well as TSA again for some reason. We were forced to go through American Customs and TSA again. TSA confiscated our rightfully owned Duty Free Absolut Vodka bottles. Because United incorrectly forced our flight behind American border and TSA again, we missed the connecting flight. After United put us on a later flight, we eventually arrived in Chicago very late, with hardly any sleep. I am looking for compensation from United for our incorrectly confiscated Absolut Vodka bottles worth $116.20, as well as compensation for incorrectly putting us behind American Customs and TSA again, causing us to miss our connecting flight, making us arrive extremely late in Chicago.

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

It was delayed instead of departing at 9:20pm, we departed at 11pm… putting us in Columbus after 2am! It was awful. Had I known about the delay, I could have spent some time in the United Lounge… I was starving because I started my journey in Budapest… so I was exhausted and hungry. Plus I had to make new arrangements to be picked up at the airport in Columbus, instead of midnight it was 2:30 am after getting luggage and out of airport. Not feasible. I would have just stayed in Chicago for the night and gotten a morning flight.

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

The boarding of took of late.The presentation of the food was horrable as was the tast of the food was cold and tastless.

Delay and keep changing gates. I have to run around from B to C then to E.

I was charged for my daughters bag when I am supposed to receive two free checked bags with my United Explorer card.

The schedule to Moline changed 5 times. The gate changed 6 times. That is a pathetic way to run an airline. No wonder that no one in our company flies on United Express to or from Moline. Changes happen most of the time. I learned my lesson on this trip…never again!

Flight was delayed over one hour and I had to pay to select my seat, even though my booking supposedly had free selection (I paid extra for this at time of booking)

Stop charging for alcohol overseas flights and start taking cash again not everyone wants to pay with card if the person is bigger give him seat on the outside seats not the middle in between the people is common sense and mainly if you fly for Lufthansa provides the sam service and experience...

good entertainment package but rather small seats for business class

The male attendant has zero personality. It seemed like he was over worked or hated his job, not once did he smile or made any contact with the people on the plane. Strictly business and call it a day!

Booked Economy but it translated to economy light for Lufthansa so now we are stuck paying an extra $75 per person both ways for our checked bags. If I had known that, I would have never booked these tickets because it came out to be more than other options. The booking in the kayak side clearly says Economy and has a link to the inormation for Lufthansa which states Economy included a checked bag. Super annoyed about that.

The flight from Dulles to Munich was just okay. The seats were comfortable and extra foot room was noticeable in comfort plus. Disappointed in the booking in so much I requested an aisle seat and then was assigned a middle seat. The food was inedible. Movie choices were moderate. I usually fly Delta, but this WA flight was cheaper. Next time, I'll happily pay the extra to fly Delta.

Flight was late arriving. So, we left 25 min late. Pilot made some time up during the flight. Therefore, we arrived alittle past original time.

Food is too little (in volume) and too spicy.. There are no snacks in the back of the plane in between meals.

The seat I was stuck in was so unimaginably uncomfortable. I have never had that tight of a seat in my 20 years of flying. Even budget airlines give you more space.

We were upgraded to economy plus and everything was awesome!

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

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