$321 Find Cheap Flights from Prague to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Prague to Illinois departing on 4/8. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Prague to Illinois.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Prague to Illinois.
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Flight Deals

Book Cheap Prague to Illinois Plane Tickets

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

Wed, Mar 4 - Wed, Mar 11
Multiple Airlines Logo
7:15 am - 12:40 am
PRG
-
ORD
24h 25m
2 stops
Multiple Airlines Logo
6:51 pm - 6:50 pm
ORD
-
PRG
17h 59m
2 stops
$621Multiple Airlines
Wed, Mar 4 - Wed, Mar 11
Multiple Airlines Logo
7:15 am - 12:40 am
PRG
-
ORD
24h 25m
2 stops
Multiple Airlines Logo
5:15 am - 6:50 pm
ORD
-
PRG
31h 35m
3 stops
$641Multiple Airlines
Mon, Apr 20 - Tue, May 5
Multiple Airlines Logo
11:20 am - 1:00 pm
PRG
-
ORD
32h 40m
2 stops
Multiple Airlines Logo
3:45 pm - 10:50 am
ORD
-
PRG
12h 05m
1 stop
$654Multiple Airlines
Sat, May 2 - Tue, May 5
Multiple Airlines Logo
9:55 pm - 5:50 pm
PRG
-
ORD
26h 55m
2 stops
Multiple Airlines Logo
3:45 pm - 10:50 am
ORD
-
PRG
12h 05m
1 stop
$661Multiple Airlines
Thu, Feb 19 - Wed, Mar 4
TAP AIR PORTUGAL Logo
7:15 pm - 3:25 pm
PRG
-
ORD
27h 10m
1 stop
TAP AIR PORTUGAL Logo
7:10 pm - 6:25 pm
ORD
-
PRG
16h 15m
1 stop
$664TAP AIR PORTUGAL
Thu, Feb 19 - Wed, Mar 4
TAP AIR PORTUGAL Logo
7:15 pm - 3:25 pm
PRG
-
ORD
27h 10m
1 stop
TAP AIR PORTUGAL Logo
7:10 pm - 11:25 am
ORD
-
PRG
33h 15m
1 stop
$668TAP AIR PORTUGAL
Sat, May 2 - Tue, May 5
Turkish Airlines Logo
3:20 pm - 9:40 am
PRG
-
ORD
25h 20m
1 stop
Turkish Airlines Logo
8:10 pm - 8:20 am
ORD
-
PRG
29h 10m
1 stop
$693Turkish Airlines
Wed, Feb 18 - Sun, Feb 22
United Airlines Logo
7:30 am - 10:59 pm
PRG
-
STL
22h 29m
2 stops
United Airlines Logo
3:15 pm - 1:55 pm
STL
-
PRG
15h 40m
2 stops
$957United Airlines
Tue, Mar 17 - Tue, Mar 24
United Airlines Logo
7:25 am - 10:12 am
PRG
-
STL
32h 47m
2 stops
United Airlines Logo
12:15 pm - 1:55 pm
STL
-
PRG
19h 40m
2 stops
$961United Airlines
Tue, Mar 17 - Tue, Mar 24
Lufthansa Logo
3:05 pm - 2:55 pm
PRG
-
STL
29h 50m
1 stop
Lufthansa Logo
1:14 pm - 9:35 am
STL
-
PRG
14h 21m
2 stops
$981Lufthansa
Booking Insights

KAYAK's insights & trends for Prague to Illinois flights

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

What is the cheapest month to fly from Prague to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Prague to Illinois, 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 Prague to Illinois is September, when tickets cost $649 (return) on average. On the other hand, the most expensive months are December and November, when the average cost of round-trip tickets is $851 and $839 respectively.

How far in advance should I book a flight from Prague to Illinois?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Prague to Illinois, 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 Prague to Illinois, you should book around 6 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know

Low seasonJanuary
Most popular time to fly with an average 13% increase in price.

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Prague to Illinois?

    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 Prague to Illinois.

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

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

    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 Prague to Illinois 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 Prague to Illinois?

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

Reviews of the top 5 airlines serving from Prague to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Prague to Illinois. 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 Prague to Illinois? 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.
7.5
LOTOverall score based on 1178 reviews
7.1Food
6.9Entertainment
8.2Crew
7.5Boarding
7.4Comfort
Airline reviews

Krakow airport is very disorganized. nice seats. friendly crew. long legs had screens. short leg did not

8.0 ExcellentAnonymous, Jan 2026
KRK - ORD
Read more LOT reviews

Krakow airport is very disorganized. nice seats. friendly crew. long legs had screens. short leg did not

Horrible communication, flight boarded then we sat on plane for almost 5 hours as the runway was barely covered in snow with no plows in sight and the as we tried to taxi there was a major equipment failure due to poor push off technique causing all passengers to be taken off the flight to ultimately have the flight cancelled. There was barely any communication to passengers as to what was happening or what to do next to get placed on another flight. Arriving to my final destination a whole day later having to take a connecting flight through Lisbon to ultimately end up in New York instead of a direct flight as none available for the next day. Never flying LOT airlines again!

Smooth flight, excellent crew and good food. Not enough space; sitting are too small.

Flight was delayed for a hour from Warsaw, not sure why. When we landed in Chicago, plane was still on the runway for about half a hour. Took a while to get off.

No WiFi and ok comfort in business class. Home safe I guess that’s all that really matters.

Crew was excellent. Business class was poor on the short flight and mediocre at best on the international flight.

Very poor. Seats like economy class, food unbeatable, no charging, no entertainment, no WiFi, boarding by bus - no justification for calling and pricing this as business class

Agents helping disable person doesnt know connections to Poland and after 9 agents helping and 2hours ,we made it to proper terminal. Polish Dreamliner its Polish nightmare liner with so narrow seats and no room under front seat for bag and feet,in economy class.To upgrade, to higher standart cost an arm and leg ,even there are empty seats No good experience overall

The seats are small and the movie selection was disappointing. However, the food was excellent and the cabin crew was attentive and kind.

Bags lost no more to say, bad communication and no urgency to get it back to the hotel by the airline properly the worst airline I have used.

This Japanese airline provides great service and very helpful in assisting their passengers.

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

I so appreciate the crew members on each flight of United. They are outstanding.

Reliable, nice crew, I fly often on that flight and I like it all.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

The staff was nice, however boarding taking 2 hours. That’s insane. Overall very bad experience, a lot of turbulence and when landed in Chicago was horrible. I don’t think I’ll flight with UA again.

An international flight on an apron is pretty unusual in my 40 years of traveling. Departure delay. Luggage despite over an hour connection did not make it to the flight. Actually still in Germany. My luggage was not moved until I reached my final destination despite knowing it to be left in Germany upon my arrival in Chicago. The service left me a little off, both going and returning from Europe. Light on in the cabin even during a night flight and lots of traffic no matter what. Maybe passengers want more service? As a frequent traveler i just want to be able to sleep, the food will be better at the destination anyway. So since the cabin crew woke me up I asked for a cocktail, I did not get the best response although sitting in row 20 premium economy. I usually fly premium economy or business and my 2 flight to Europe in 2025 with United both had luggage delays and other minor issues. American flights to Australia, Canada and Europe went smoothly and Premium plus feels very much like business light. Is United Club becoming a waste and Silver/Gold levels another waste??

Very hot cabin made long flight uncomfortable, even in business class! Food was great. Istanbul business lounge had great food but too few bathrooms and seating . They also need more electric outlets for charging devices. Appreciate the ability to go through fast track lines w business class

The crew on this flight provided exceptional business class service to me.

The staff at the boarding or the rudest uninformative and no English whatsoever they’re very rude as if they are envious of you travelling I don’t understand how could someone would be this rude and this out of touch and cold

You charged me for luggage although the airline does not- you charged me for seat when customers can pick their own seat at checkout in I travel to Europe slot and I will not use kayak again

They oversold the tickets by one which was my ticket so I didn’t have a ticket till last second

Not good. I was supposed to be in Mint but got in economy class

Requested food options were always finished. Supplied food items were good but of course not the desired choices.

The airport staff never announced that boarding has started. Both at iad or Islamabad or Istanbul.

Very bad experience with turkish airline tk 0001. Very uncomfortable seats and food ran out and crew was not helpful

The airline could improve its business class seats and privacy in line with its competitors.

Overall satisfied and would fly with them again. They could improve the check-in efficiency at BOS, we got backed up because it seemed there were passengers requiring much more time for check in.

The customer service was unbeatable from the wheelchair assist team to the flight attendants. The pilot also did an excellent job managing the turbulence.

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

The Experience Was Torture Spend a few extra dollars and avoid Icelandair at all costs. There is absolutely no refreshments, no food, no drinks. Only water, coffee, tea are free and at only half a tiny cup. Entertainment is limited selection of films, shows and mostly outdated. The seats are smaller than usual, with no cushion, no pillows, no blankets. First time in my life have I witness an airline asking for donations in spare change for a charity. With all the money Icelandair saves by starving the passenger, they can afford to give this charity on their own.

Again, we paid $ 328.00 for specific seats are were assigned those seats.

Having been prepared for paying for everything on board other than water, coffee and tea the service was OK. Food and drink is expensive but the food was OK if limited in scope. Plane was clean and obviously well serviced. After complaining about having to walk in wind and rain to a get a bus to the airport the same thing happened at Portland. I’m sure you could get a terminal gate flight, complimentary food and drink for not much more money without traipsing through rain and slush in Reykjavik. Not bad but not great.

They had a 4 hour delay and left my luggage in Iceland and it didn’t arrive in Portland until 11/1

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

Service was excellent. Food and drinks were very good except for a greasy lump of a donut at the end of the flight that left us both feeling internally disgusted.

No meals included on this long international flight. Most airlines will offer you a meal when flying internationally. Not Icelandair. Your included choices are water and coffee. Poor customer service. The airport was also very confusing.

We were in premium economy seats that appeared to be locked in plae, No reclining. My aching back.

I don’t understand how they charge as much as they do for such a poor experience

I wish the plane had pod seating for business class. I had a window seat (8K) and I had to climb over the person sitting on the aisle when I needed to get up. Also there is no partition between the seats for privacy when sleeping. The Asian airlines have much nicer business class seating. Their seats are wider for better comfort when sleeping.

The seat space seemed small especially when the person ahead reclined but other than that, very good.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

Food was poor quality and the screens for entertainment didn’t work properly

It was a short flight, everything was good with it.

I darted through the Frankfurt airport to make my connecting flight. I asked if it was a possibility to upgrade and the agent did. This was the kindest gesture and it made up for the previous delayed flight and distress/anxiety of anticipating that Zi was going to miss my Frankfurt-Chicago connection. I cannot express my gratitude for the upgrade.. I am 5feet 10 inches do the leg space was amazing.

I meant this flight was not good, the one from Tirana to Frankfurt was better!

I was very grateful for Lufthansa's role in organizing mobility support. The touchscreen on my seat was faulty: slow, stained (I couldn't get it clean), and glitchy. This made selecting movies extremely time consuming, and twice I had to start all over from the beginning.

Everything you need to know for your flight from Prague to Illinois

Information on your arrival and departure airports