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Flight Deals
Cheap Flights from Chicago to Estonia
Cheapest round-trip prices found by our users on KAYAK in the last 5 daysNonstop
Weekend
Sort by: Cheapest
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
Mon, Feb 1 - Wed, Feb 10
7:10 pm - 12:05 amORD Chicago O'Hare Intl-TLL Tallinn
20h 55m2 stops Kastrup Copenhagen Stockholm Arlanda
8:35 pm - 4:45 pmTLL Tallinn-ORD Chicago O'Hare Intl
28h 10m2 stops Stockholm Arlanda Kastrup Copenhagen
$595Scandinavian Airlines
Mon, Feb 1 - Mon, Feb 8
7:10 pm - 12:05 amORD Chicago O'Hare Intl-TLL Tallinn
20h 55m2 stops Kastrup Copenhagen Stockholm Arlanda
6:20 am - 4:45 pmTLL Tallinn-ORD Chicago O'Hare Intl
18h 25m1 stop Kastrup Copenhagen
$595Scandinavian Airlines
Mon, Feb 1 - Tue, Feb 9
7:10 pm - 12:05 amORD Chicago O'Hare Intl-TLL Tallinn
20h 55m2 stops Kastrup Copenhagen Stockholm Arlanda
8:35 pm - 4:45 pmTLL Tallinn-ORD Chicago O'Hare Intl
52h 10m2 stops Stockholm Arlanda Kastrup Copenhagen
$595Scandinavian Airlines
Sun, May 9 - Sun, May 16
5:35 pm - 7:55 pmORD Chicago O'Hare Intl-TLL Tallinn
18h 20m2 stops Toronto Pearson Intl Amsterdam Schiphol
8:10 am - 5:50 pmTLL Tallinn-ORD Chicago O'Hare Intl
17h 40m1 stop Helsinki-Vantaa
$666Multiple Airlines
Sun, May 9 - Sun, May 16
9:30 pm - 4:55 pmORD Chicago O'Hare Intl-TLL Tallinn
11h 25m1 stop Helsinki-Vantaa
8:10 am - 5:50 pmTLL Tallinn-ORD Chicago O'Hare Intl
17h 40m1 stop Helsinki-Vantaa
$668Finnair
Sun, May 9 - Sun, May 16
5:35 pm - 7:55 pmORD Chicago O'Hare Intl-TLL Tallinn
18h 20m2 stops Toronto Pearson Intl Amsterdam Schiphol
6:00 am - 5:50 pmTLL Tallinn-ORD Chicago O'Hare Intl
19h 50m1 stop Helsinki-Vantaa
$669Multiple Airlines
Sun, Mar 21 - Wed, Mar 31
5:20 pm - 1:00 pmORD Chicago O'Hare Intl-TLL Tallinn
12h 40m1 stop Frankfurt am Main
2:05 pm - 7:55 pmTLL Tallinn-ORD Chicago O'Hare Intl
13h 50m1 stop Frankfurt am Main
$694Lufthansa
Fri, Mar 26 - Sun, Apr 4
5:20 pm - 5:10 pmORD Chicago O'Hare Intl-TLL Tallinn
16h 50m1 stop Frankfurt am Main
2:05 pm - 7:55 pmTLL Tallinn-ORD Chicago O'Hare Intl
13h 50m1 stop Frankfurt am Main
$701Lufthansa
Thu, Dec 10 - Mon, Dec 21
8:59 am - 1:00 pmORD Chicago O'Hare Intl-TLL Tallinn
20h 01m2 stops Philadelphia Frankfurt am Main
6:30 am - 1:10 pmTLL Tallinn-ORD Chicago O'Hare Intl
14h 40m1 stop Frankfurt am Main
$720United Airlines
Thu, Dec 10 - Mon, Dec 21
10:40 am - 1:00 pmORD Chicago O'Hare Intl-TLL Tallinn
18h 20m2 stops Detroit Metropolitan Wayne County Frankfurt am Main
1:45 pm - 8:05 pmTLL Tallinn-ORD Chicago O'Hare Intl
14h 20m1 stop Frankfurt am Main
$720United Airlines
Recent one-way flight deals from Chicago to Estonia
Sat, Dec 19
10:25 pm - 11:10 amORD Chicago O'Hare Intl-TLL Tallinn
52h 45m3 stops Reykjavik Keflavik Intl London Gatwick Barcelona-El Prat
$694Multiple Airlines
Sat, Dec 19
10:25 pm - 11:45 amORD Chicago O'Hare Intl-TLL Tallinn
29h 20m2 stops Reykjavik Keflavik Intl London Gatwick
$720Multiple Airlines
Sat, Dec 19
5:50 pm - 11:30 pmORD Chicago O'Hare Intl-TLL Tallinn
21h 40m1 stop Brussels Bruxelles-National
$1,119Brussels Airlines
Booking Insights
Price, demand and travel trends for Chicago O'Hare Intl Airport to Estonia flights
Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.
Prices
Airlines
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Are flights from Chicago O'Hare Intl Airport to Estonia cheaper or more expensive than last year?
Fares from Chicago O'Hare Intl Airport to Estonia are running about 5% lower than they were around this time last year, averaging $690 round-trip.
What are the cheapest fares from Chicago O'Hare Intl Airport to Estonia right now?
The cheapest fare from Chicago O'Hare Intl Airport to Estonia in the last week was $595 round-trip, to Tallinn (TLL).
What’s the cheapest month to fly from Chicago O'Hare Intl Airport to Estonia?
These monthly figures are based on KAYAK fares from the past 12 months, with extreme outliers removed so each month's typical price is accurate.
March is the cheapest time of year to fly, with average fares of $498. Prices are highest in October, when average flight costs increase to around $1,154.
Which airport in Estonia is the cheapest to fly to from Chicago O'Hare Intl Airport?
All flights from Chicago O'Hare Intl Airport to Estonia arrive at Tallinn (TLL). On average, round-trip fares are around $732.
What’s the cheapest day to fly from Chicago O'Hare Intl Airport to Estonia?
Friday tends to be the cheapest day to fly from Chicago O'Hare Intl Airport to Estonia, while Monday is the most expensive. Fares run about 29% higher that day, based on the past 12 months of KAYAK data.
What's the cheapest time of day to fly from Chicago O'Hare Intl Airport to Estonia?
Data from the past 12 months shows it's cheapest to fly to Estonia during the evening with average prices of $618. The night is the most expensive time to fly, with average prices of $989.
What are the cheapest airlines to fly with from Chicago O'Hare Intl Airport to Estonia?
Fares reflect aggregated pricing data and may not include every trip type.
Looking at KAYAK data from the last 12 months, the cheapest airlines to fly with from Chicago O'Hare Intl Airport to Estonia are:
• Scandinavian Airlines (avg. price $638)
• Lufthansa (avg. price $737)
• United Airlines (avg. price $738)
• British Airways (avg. price $919)
• Turkish Airlines (avg. price $923)
What's the most popular airline to fly with from Chicago O'Hare Intl Airport to Estonia?
Drawing on KAYAK data from the past three months, the most popular airlines to fly with from Chicago O'Hare Intl Airport to Estonia are:
• Scandinavian Airlines
• Finnair
• United Airlines
• Lufthansa
• Iberia
What are the most popular flight destinations in Estonia?
Tallinn is the most popular flight destination in Estonia, based on KAYAK data from the past 3 months.
Key details for Chicago O'Hare Intl Airport to Estonia flights
Low season | March |
|---|---|
High season | July |
Cheapest flight | $595 |
Your Chicago O'Hare Intl Airport to Estonia flight questions, answered
Find helpful answers about this route, including flight times, airports, airlines and booking tips.
Your guide to booking Chicago O'Hare Intl Airport to Estonia flights
Get tips on when to book, when to fly and what to know before your trip.Reviews of the top 4 airlines serving from Chicago to Estonia
7.6
FinnairOverall score based on 1410 reviews
8.2Crew
6.9Entertainment
7.6Boarding
6.7Food
7.4Comfort
Airline reviews
Will never fly American Airlines business class again. Medicore service and very old aircraft.
2.0 MediocreLamia, Sep 2026
Will never fly American Airlines business class again. Medicore service and very old aircraft.
Awful. Delayed for unknown reason. Boarded late, part of a Tight connection ands had to go through customs and immigration. And they lost my bags.
The seats are very uncomfortable. They never have tomato juice. Usually late
Finnair was not able to get our luggage on a connecting flight and there was a substantial delay of two days to obtain our lugguage. They did not communicate well, and we had to travel a significant distance to finally get our luggage. It has been a very negative experience.
Comfort. Not good very little space after the person in front of you lay back.
Business seating is soooo uncomfortable. You can sit straight up or lay down. You need pillows behind you because the back doesn’t lay down. Those are need to “prop” you up. The chair has no padding whatsoever. Food was gross. I’ve eaten on Finnair before and the food was exceptional. This time it gave 2 people in our party diarrhea. It was the chicken dish. I took 2 bites and didn’t eat anything more. The flight attendants were nice. You needed an additional lounge in Terminal D at DFW Airport. After waiting 40 minutes to enter, we finally gave up and went to a bar across from the club doors. I’m unsure if I’ll ever book a Finnair flight again.
It was a good flight, very comfortable seats for sleeping in business class. Probably the most comfortable business class seat I've ever had (20+ times in business class on various airlines). Service was good, but the only downside is my screen didn't work and it had to be reset multiple times to get it to shut off. I had to block my eyes because the screen was white almost the entire flight and I wore an eye mask when I slept. But when eating and reading in my seat, my eyes hurt because the only way to turn the screen off was reset it and the screen would only be off for a few minutes at a time.
Everything was wonderful! AirBus seats are more comfortable to sleep in as compared to the Boeing planes.
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.
Not great. Flight attendants were aloof, food was mediocre, seats that I paid $150 were given to someone else without any concession. I will probably never use kayak again. Terrible experience from start to finish.
The leg room in economy was sub par, everything else was fine.
I WAS CANCELLED ! I thought entire flight was canceled but it was still ongoing and I was only canceled as a passenger and one day before my flight with really poor "choice" of next flights that completely ruined my family event. Absolutely disappointed by SAS. Will be avoiding this airline now
The flight was pleasant with landing and take off being very smooth. Toilets were a bit busy at times but crew was very accommodating. Food service was quick and hot. The connecting short flight was full and there was not room for hand luggage.
No crying babies the whole flight would be nice. Impossible to sleep. No free snacks , only the main meal
They lost my luggage and can’t find it. My trip is ruined. Online tracking of lost luggage doesn’t work
Boarding required going up and down the stairs with your carryon bags which wasn’t an issue for us but would be quite challenging for elderly people, or anyone with mobility issues.
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.
On this shorter leg and with an older plane, just mediocre. On the connecting long haul (Chicago to Copenhagen) everything was great.
My outbound flight was incredible... Milan to Chicago. The crew worked so well together. Each passenger felt spoiled and incredibly valued. The crew on this flight was fine. Nothing to complain specifically about but could not give top rating only because of the superior crew, hospitality, warmth we felt on the first flight. Unfortunately. You managed to lose my luggage ..my only piece checked in. Lost in Copenhagen so I had the added stress, time wasted to file the report. To make things worse, Italian rail decided to strike that Sunday so I could not take the train as planned back to Switzerland. Horrible waiting time and poor communication for boarding substitution bus. The substition bus to the town of Stabio did not run on time and was late about 40 minutes.
The flight was cancelled early on and messed up the whole vacation and hard to get a refund from Kayak as they owned the ticket and of course they did not believe that SAS cancelled the ticket. Definite bad side to third party. SAS had rescheduled but overlapped the connecting flights. That did not work. Flight was cancelled long ago but Kayak still has it. Like it was taken? Bad IT ? Or all assumptions and no follow up which is the whole IT world. It needs to wake up and be more efficient. Especially as the world is going, there will be no freedom to do anything. And we will be living like the Middle Ages. Yeah, go read up on that while you still can.
Very uncomfortable and cramped seats. Everything else was okay, the crew members were nice but nothing was exceptional.
Waited on tarmac for approximately 15-25 minutes before taking off. When landing, the time it took to taxi to our gate was the also 15-25 minutes.
Connection times always good online, but not in reality when first leg is delayed (2 out of 2 times this trip).
It was good flight was smooth, little cold on the plane but other wise good.
Great flight and crew. Need more legroom and DO NOT allow seats to recline.
The guy in front of me was talking constantly, even when the pilot was making announcements. I found this very disrespectful to the pilot and to others.
We left 1.5 hours late due to a “maintenance” issue. Very poor communication as to when we would board & depart. The crew in First Class was uncharacteristically not friendly). Delay into Brussels cost me my connection to Rome so lost the entire first day of vacation ( had a 10:30am flight to Rome - ended up on a 6:55pm flight).
Everything was OK except the meals, that was overpriced chicken meat.
Miss My connection I had to take a flight from Indianapolis to Denver , then to san fransisco , sleep in sans fransisco en the flight to Los Cabos the next morning
The TVs on the plane were all broken and inoperable. No snacks or food were served. Plane was very old and uncomfortable.
The flight and staff were perfect. No notes. Amazing experience overall.
It was a safe and smooth flight. Members of the crew at the second level, business could have been more polite and engaging.
I was booked to travel from Dallas to Nairobi via Chicago and Brussels and had been issued boarding passes for all three segments of my journey. At the boarding gate in Dallas, I was required to check my carry-on luggage due to limited cabin space. Despite my attempts to explain that I was traveling internationally and would not have access to the bag during transit, my concerns were not considered. I also informed the staff that I did not have a padlock to secure the luggage, but this was disregarded. Consequently, I had to hastily transfer essential items from my carry-on into my handbag. Unfortunately, the onboard experience on the Chicago to Brussels flight further reinforced my dissatisfaction. The cabin crew appeared disengaged, indifferent, and lacking in attentiveness, resulting in a service experience that fell well below my expectations.
Flight was on time and got us to destination quicker than scheduled.
I have very bad experience with United because Vince two weeks that I did not receive my luggage yet
It was okay. Mothers with rowdy children should be invited to sit in front of them.
Good food, overall very comfy. The flight was full so obviously not optimal, but it is what it is.
Flight was delayed by several hours and then cancelled due to weather. But Staff was very helpful getting me on a different flight. United should offer food coupons and tooth brush and paste for stranded passengers
I had a good comfortable seat. There was nearly an hour delay. There was an accident with the champagne, but I was well compensated. These things happen sometimes.
We missed our flight. There was not enough time built into the layover to get through immigration, customs, bagclaim, bag rechecking, and the long trip to another terminal and gate. Kayak really screwed up. We took the bus up to Wisconsin and then were picked up in Brookfield by private car. It was lucky we didnt miss the last bus out.
More options for your flight from Chicago to Estonia
Complete your trip to Estonia with a hotel stay or car rental
Information on your arrival and departure airports
Cabin class types available on flights to Estonia
Cabin classes available on flights to Estonia. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
Flights from domestic origins to Estonia
Flights from all regions of Chicago to Estonia. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
Flights to other popular destinations
The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
Flights to popular cities in Estonia
Flights to Tallinnfrom $623
Flights to Tartufrom $1,136