Find cheap flights from Illinois to London

Search hundreds of travel sites at once for deals on flights to London. Bundle your flight + hotel and save!

— YXU
May 26 — Jun 21
Round-trip
1 adult
Economy
0 bags
From?
To?
Thu 5/26
Thu 6/2

Search hundreds of travel sites at once for deals on flights to London. Bundle your flight + hotel and save!

Good to know

Low season

August

High season

July

Cheapest flight

$265

Average price round-trip

$676

Good deal round-trip

$155

Good deal one-way

$356
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 58% increase in price.
Flight from Chicago O'Hare Intl to London
(avg. price over the last 2 weeks)
or less
or less

FAQs for booking flights from Illinois to London

Top 4 airlines serving Illinois to London

Scores according to KAYAK customer reviews
7.9
DeltaOverall score based on 30768 reviews
8.1Boarding
7.8Comfort
8.5Crew
7.8Entertainment
7.5Food
Airline reviews

Boarding took a long time. Taking off took a long time. I spent over an hour connecting, disconnecting repeatedly from the Wifi just to watch the last 15 mins of the movie I watched on my first flight. Wasn’t offered ice with my drink. They passed me twice to throw out my garbage. And the guy next to me had his arm in my ribs the whole time.

Read more about Delta

Boarding took a long time. Taking off took a long time. I spent over an hour connecting, disconnecting repeatedly from the Wifi just to watch the last 15 mins of the movie I watched on my first flight. Wasn’t offered ice with my drink. They passed me twice to throw out my garbage. And the guy next to me had his arm in my ribs the whole time.

Pilot was a madman. The landing was the worst I've ever experienced. He seems to have misjudged the ground and hit the runway HARD. My back hurts and my inside organs are sore from the impact. Then as we were taxing to the gate he repeatedly slammed on the breaks so we jerked forward each time with enough force to tug on the seat belt. All the passengers were asking "what happened? What went wrong?" Pilot had an Australian or New Zealand accent.

It was a smooth flight. Nothing untoward happened

The 2 hour delay stunk

They made us check carry ons despite the entire aircraft overhead space being empty

Cons: "We arrived around 39 minutes early and the whole process was very smooth"
Pros: "Super friendly and helpful with connections."
Cons: "The music on the plane was a bit much. Lol"
Pros: "Flight was on time and crew helped find a place for my violin. Even though I was early to the gate, they also helped me update my seat before the new flight crew arrived."
Pros: "Crew was friendly, seats really comfortable!"
Cons: "Headphones sold for $ 2. Headphones preferably free"
Pros: "Nothing"
Cons: "We were traveling international in Twitter after contacting we were told we can carry one checked baggage but then we were not allowed and at gate they didn’t know the procedure and repeatedly checked our passport Poor customer service"
Cons: "The carrots were hard and the bread was cold."
Pros: "Got to my destination without any issues"
Cons: "Seats/seating area are too small, and I'm not a big person."
Pros: "No"
Cons: "The flight was delayed almost 6 hours, the crew was rude and the “comfort +” seats had very little leg room ."
Pros: "All good."
Cons: "Price"
Pros: "The flight was on time, the crew was pleasant and looked like they enjoyed working in the air."
Cons: "Our second time on a 787 Dreamliner across the Atlantic as about the same as the the first. The seat pitch is very tight so when a passenger reclines into the next row the seatback nearly touches your face. The Dreamliner seats seem to be very hard and it's difficult to get comfortable."
Cons: "Flight was delayed a bit due to a couple passenger booking/misc issues. 1st class didn’t get gate bevfood service. Oven was busted so my meal wasn’t available. Entertainment console had all channels functional except — not really an issue I just really wanted to have ESPN playing in the background"
Pros: "Son got wings, so was happy."
Cons: "No entertainment."
Cons: "It was late"
Pros: "Good snack selection. Crew was personable."
Cons: "Seat assignment for me and my traveling companion was done at gate. We had to sit in 2 different rows."
Pros: "Crew was nice and welcoming"
Cons: "Well, if our plane had been leaving on time it would've been superb."
Cons: "Notify the delay quickly"
Pros: "Helpful"
Cons: "More print media to read on"
Pros: "Crew was great."
Cons: "Couldn’t hear/understand the pilot"
Pros: "Flight attendant in first class was amazing."
Pros: "The boarding was fast and very well handled."
Cons: "It was delayed"
Pros: "N/A"
Cons: "Chinese Eastern did not try to help and solve my problem."
Pros: "There was a bit of a mixup in boarding the plane but otherwise the flight was good. There was no entertainment system on this short flight. The flight attendants were very pleasant & efficient. They only served snacks on this short flight but were very good at ensuring everyone had at least one or more beverages. The premium seats were very comfortable ."
Pros: "Short flight"
Cons: "Flight attendant was not willing to go above and beyond as he stated he would. My husband asked for a coke and the flight attendant told him he could only get water."
Pros: "It was a smooth boarding, flight and exit out of the plane."
Pros: "On time departure/arrival despite weather in Atlanta. Always a fan of free messaging and choice of snacks."
Cons: "Delta needs to invest in their gate area at ORD. Understand it’s not a hub but it’s a key business/leisure destination. The MD-80s are ok for a short hop but over 1 hour unless you’re in Comfort+, it’s tight."
Pros: "Snacks, cleanliness and crew"
Cons: "N/A"
Pros: "Nothing"
Cons: "They take them forever to find me another fly ,make miss my other fly, my work my time and my sleep"
Cons: "Entertainment app from Go Go didn’t Work."
Pros: "It was a normal flight as well expected."
Pros: "I was with my friend"
Cons: "Delayed 12+ hours"
Pros: "We had a 2 1/2 delay due to mechanical issues but the crews, flight and ground, did a great job. Thanks."
Pros: "Staff were friendly and boarding was and getting off was easy because flight was super empty. Timeliness was appreciated too."
Cons: "Seats don't recline far enough."
Cons: "It takes time and worries to find the air train and Aeroflot registration."
Pros: "My flight was great. Boarding was easy and the seats were comfortable."
Pros: "I needed to run real fast to the connection flight and gladly got there on time."
Pros: "The service was amazing , the staff was honestly friendly and nice"
Pros: "Great service, nice agent friendly"
Pros: "Very friendly and professional gate agent and flight attendant"
Cons: "I was unable to fly at all due to a spelling error on my ticket. The airline refused to alter the ticket. Worst experience of my life, ruined my Christmas"
Pros: "Very nice flight and attentive staff. Enjoyed the view of NYC as we flew up the East River, then looped over Nassau County to approach LGA."
Cons: "The male flight attendant who handed out the complimentary drinks and snacks acted a bit strangely. I was very thirsty, and I asked him if I could keep the rest of the can of soda. He neither said yes nor no, but rather completely ignored what I said and just poured my drink and moved on. I was a mildly annoyed, but figured maybe it was policy and he was shy and didn't want to debate the matter. When he took care of the older couple behind us, however, things got really strange. He asked them whether they wanted pretzels or peanuts, but they misheard him and asked for a ginger ale. I happened to know that he did have ginger ale, since my wife had just gotten one, but rather than just pouring the old folks a drink, he repeated himself. "Peanuts or pretzels?" They misheard again and asked him whether he had a diet ginger ale. Again, rather than just pour them the drink, he repeated himself. "Peanuts or pretzels?" This went round and round a few more times -- like a poorly designed computer UI that refuses to accept anything except the correct input -- before the old couple finally figured out the disconnect and picked their snacks before their drinks. Very weird."
Cons: "Layover"
Pros: "N/A"
Cons: "2.5 hour delay for no apparent reason at first (supposed mechanical issues with plane) and then waited on plane at gate for a missing pilot who never got picked up from his airport and got stuck in Chicago traffic trying to get to O'Hare. Eventually had to take pilot from another flight before leaving at 8:45 when flight was scheduled for 6:00am."
Pros: "The Gogo Inflight wifi and entertainment did not work for even a minute. I choose flights based on their amenities and this one had offered full WIFI service which swayed me to choose to fly with Delta. I'm not sure who is to blame about this issue but I'm pretty frustrated that it was completely dysfunctional."

Nothing.

Pros: "Crew was friendly and professional."
Cons: "Flight delayed 1hr"
Pros: "Everyone was very nice."
Cons: "The seats were very uncomfortable."
Pros: "The crew did the best they could considering the delays."
Cons: "More information on the three-hour delay"
Pros: "Westjet is just overall awesome"
Cons: "On both legs the seat was super uncomfortable. Really hard."
Cons: "Nothing"
Cons: "1. For the flight to not have been cancelled. 2. For a replacement flight within 12 hours. 3. Hotel vouchers and meal vouchers for those that could not get on a flight for longer than 24 hours post original flight! Disgusting the way passengers have been treated"
Pros: "Unreal service by all WJ employees. Great service getting my 87 year old mom to and from everything."
Pros: "Very nice and accommodating"
Cons: "My inflight entertainment system didn’t work."
Cons: "Tv in the seat to make the long flight pass more quickly."
Pros: "Nope. Just got me to where I was going..."
Cons: "Complimentary food, service (smile a little guys!), comfort."
Cons: "Seats are so small"
Pros: "Entertainment system was easy to use"
Cons: "Boarding was chaotic, jammed, not that friendly."
Pros: "Direct from Orlando to London!"
Cons: "Coming home to the cold"
Pros: "The pilots made the trip in great time. The landing was good."
Cons: "We were told we could board the flight, then when we got to the steps in the cold and dark we were sent back.The staff were not very friendly with the customers somewhat superficial, but with each other it was like they were at a party. Not impressed by the 2 young women."
Pros: "Super fast. All on time."
Cons: "I didn't like in a middle seat and being told that in order to move to an aisle seat I would have to pay $13.50. Normally with Westjet it was always free to change seats at Check in. It's frustrating when things change and you only find out at the time of check in rather than at time of booking."
Pros: "Kayak was the most economical option for a weekend trip to Vancouver. I appreciate the service greatly."
Pros: "I’ve always liked WestJet and it’s services. They are my always my first airline I go to check flights."
Pros: "Nice service."
Pros: "Flying with west jet is always a great experience. The crew always make you feel welcome."
Cons: "They didn’t offer coffee on this particular flight."
Cons: "No free food was offered on a 8 hour flight. I won't choose Westjet again."
Pros: "I was given a nice seat with plenty of leg room by the emergency exit ."
Cons: "I will say our flight took of a bit late which was a bother so late at night."
Pros: "Everyone was very friendly, and despite us boarding late, we still made it to our destination on time."
Pros: "everything"
Cons: "Thanks"
Pros: "Both planes departed late and reason given was staff has not yet arrived . First plane could not rationalize the number of people on board ."
Cons: "Service was slow and staff seemed to be very casual about the fact we would be an hour late"
Pros: "The stewardess serving drinks was very pleasant. Thank You"
Cons: "avoid the westjet encore flights. planes are small and noisy. if you sit next to a window it’s impossible to comfortably put both feet on the ground. if you pay for plus seating on an encore flight you’re basically paying to get on and off first. there’s no extra room and would be more fairly priced at $10."
Pros: "Hannah was a lovely accommodating woman thourghly enjoyed her service, i slept the whole way to Prince George. Crew was welcoming and accommodating."
Cons: "Didnt know i bought west jet plus seats. Enjoyed my service though. May think of buying plus again some time soon on one of my up comming trips"
Pros: "The ticket price was great. The crew were nice."
Cons: "There is no monitor in front of you/in-plane, so bring your own tablet"
Pros: "The flight attendance are always so humble and helpful"
Cons: "N.a"
Pros: "Staff and aervice was great! No complaint!"
Cons: "We had to put our carry on bags a little far away from our seats"
Cons: "Extremely delayed with terrible snacks"
Pros: "It was nothing I liked about it I asked to move to empty seats they told me it was against the safety rules"
Pros: "The leg room"
Cons: "They didn’t have wifi so couldn’t watch anything"
Pros: "Getting on in Palm springs and getting off in Winnipeg. Thanks WestJet"
Cons: "Not knowing to download The app until I was on the plane"
Pros: "I loved having the econnect so that I was able to control my own entertainment. The app is good for tracking the flight status. The staff were lovely."
Cons: "Nothing was bad. I am Very impressed and looking forward to the return flight."
Pros: "Friendly staff 8"
Pros: "Not much"
Cons: "Always delayed, this time because an international flight arrived when we were supposed to board, frustrating"
Pros: "Very efficient boarding process and friendly crew members."
Cons: "Make sure to pre-order a meal up to 48 hours in advance, and to download the Westjet app to get access to free movies/TV"
Pros: "The staff was generally very attentive, friendly and professional"
Cons: "I didn't have any negative experiences."
Pros: "Comfort, attention to detail and above all else, feeling welcome and safe throughout check-in to thanking crew de-planing. Incredible experience as always."
Cons: "Nothing comes to mind"
Pros: "Friendliest crew, good entertainment system. Comfortable seating"
Cons: "Desperately need a lounge facility in terminal 5 Chicago"
Cons: "Good airlines"
Pros: "The friendliest crew ever!"
Pros: "The free drinks and snack"
Cons: "The check in kiosks couldn't read passports well so we had to go check in at counter and the two agents were not adequate because our wait was well over 1/2 hour."
Pros: "Nothing"
Cons: "Computers down delayed checkin. Items stolen from checked bags. Flight delayed. Lost bag on a flight with no transfers."
Pros: "The gate and air crew were very friendly. Flight right on time."
Cons: "Not much legroom."
Cons: "Timeliness"
Cons: "Good flight"
Pros: "Great staff!"
Cons: "Nothing"
Pros: "Many airlines have code share flights but it is better to buy ticket directly from the original airline as they keep on ignoring the code share flight bookings"
Cons: "Till last moment we were kept hanging if we will board or not as no seat number was allocated. I believe it was as we were from the code share airline not the real one"
Pros: "I got upgraded to first class!"
Pros: "We had a very good experience with Air canada and will use Air Canada again."
Pros: "Nothing"
Cons: "Flight delay led us to miss our connecting flight. Air Canada then lost our luggage for 6 days on our honeymoon!"
Pros: "Very short flight, not much to say"
Cons: "They airline cancelled our return flight and booked us on another flight more than 2 hours later. We had an event to attend that night so we asked if they could book us on United so we wouldn't miss it. The agent outright lied and said there were no other United flights before then. As we were waiting for our flight, we heard the agents call the final call for a flight to Chicago. Truly disgusted with Air Canada - will never fly them again!"
Cons: "The seats are large, but they tilt forward. I'm 6'2" and have anxiety issues related to spinal problems. That forward pitch in the seat (half way up the seat) is an painful problem for people like me."
Cons: "Departure was late, causing me to have to run to the next gate"
Pros: "Not much."
Cons: "I thought Comcast service was bad. This was the worst. They cancelled my flight at the last minute, then escorted all passengers out of the gate, told us to go through customs then pick up our luggage. And said we had to call to arrange another flight, but the phones just left a message saying to call back in a few days. I was stranded with no phone, no hotel, and no flight home. Three days later, I still cannot get in touch with them."
Pros: "At least the entertainment systems worked this time."
Cons: "I've never thought that airplane food was bad before, but they ran out of the main options and I was left with macaroni and cheese. It was bad."
Cons: "See above."
Pros: "One kind guy at air Canada in Toronto who was very helpful considering the lack of help from every one else. Arrived at 2 in morning exhausted."
Cons: "Attitude of staff"
Pros: "The pilot seemed good and the staff on the plane were nice overall"
Cons: "Customer service from the group staff that checked us in was horrendous... (Lisa from Chicago ). We were not aware one of us needed eTA to fly through Canada and the agent was so belittling, rude and plane wrong with her information, that if it had not for our smarts, we might have not made it to our destination. I do not spend so much money to fly with an airline, whose agents treat it me like this! She really should be fired for her terrible manners and for giving customers wrong information..the second supervisor we talked to helped us, but the impression we got from the agent was so terrible, that it was hard to feel any good...no food on a flight during lunch hour, seems unfitting."
Cons: "My original flight was delayed by 3 hours, causing me to miss my connecting flight. Instead of arriving at 9:30 at my final destination I arrived at 1:30 am. Exhausted."
Pros: "I am sad to say I have little positive things to say about this experience."
Cons: "To begin, our flight was delayed an hour into Toronto. We asked the flight attendant about our connecting flight and they said they would find an answer. It ended up that we landed just as the flight was scheduled to leave. Why they could delay pur flight but would not hold another flight by 20 minutes is very questionable. Then we got to customer service, the rep told us that we could only get on the next flight going out tomorrow at the same time which meant 24 hours lost. Of our vacation- which hotels already booked and tours already booked. When I asked if there was anyway we could get in earlier the service person told me "I should be grateful because some people have had to wait multiple days to get to their destinations." When we finally did board the flight the next day we were not served any food, no snacks, and no drink for the entire overnight flight."
Cons: "There was a 90min delay on all flights going to toronto due to construction in toronto yet air canada (knowing this) boarded everyone on time anyway and made us sit on the runway for over an hour. They could have left us in the lounge until they were ready. Parents with babies do not appreciate such thoughtlessness. But hey, as far as air canada was concerned, they left the gate on time."
Pros: "In the airport Chicago to Montreal I met a nice person he made my boarding pass to me. I love the service !!!!!! Said Thank you so much for your time to getting. Dory Clothilde"
Cons: "Airline list baggage. Had to wait 3 hours to get luggage which was put it the next flight"
Pros: "Poor airline, always delayed, dreadful and unfriendly customer service. The only reason I flew with them this short trip was due to price"
Cons: "We were in Toronto for an entire week without our bag and Air Canada showed no concern at all for our well being. I travelled with my one year old son, I needed supplies for him and Air Canada gave me dead end numbers to call, websites that didn't work and even hung up on us when we were trying to find out about our bags. They treated us terribly. I will never fly them again."
Pros: "When there were unforseen delays. They just said too bad, here is a phone number you can call. It then took 2 hours to try and get someone on the phone. Once I finally was talking with someone, they said it would cost $200 to rectify the problem. I then got put on hold. When they came back they said it would be over $2000 to get home. Talk about trying to cash is on people's hard situations. I ended up flying WestJet. They were amazing."
Cons: "My flight was changed and I wasn't informed - I cleerly checked my information beforehand but it would be nice if flights were to change by two hours, to know in advance so arrangements could be made"
Cons: "horrible"
Pros: "short trip"
Cons: "delayed but didn't update the screen as delayed even though it was delayed an hour it still said on time."
Pros: "The crew was attentive."
Cons: "The head phone slot did not work. Then the TVs went out which did not matter because I could not listen to them anyway."
Pros: "When I had to reschedule they were very nice about making sure that I had the information I needed and they gave me great seats on the way to London."
Cons: "My flight was Delayed and I had to reschedule that was unfortunate."
Cons: "Delayed"
Pros: "Great Pilots The pilots were great! The weather was not optimal, but they did a great job of making us as comfortable as possible."
Cons: "Better Quality Food Needed The salted plate served was sub-standard. Also, it was full of salt and poses health risk for many people. In the past, better food was served including a pot pie. Also, the staff should be more aware of the wines to be served. And there is not enough attention paid to service in the executive cabin as the attendant runs back and forth between both cabins."
Pros: "Plane was super old...peeling paint, barely any full size luggage space, no in flight tv and always late or delayed. 4/4 flights we took were delayed. This airline is the worst and were terrible at keeping us updated on delays or cancellations."
Pros: "Staff was friendly"
Cons: "Uncomfortable seating"
Pros: "The crew was very friendly."
Cons: "The plane boarded early and the food was not good. The pasta was over cooked and essentially a mash."
Pros: "Everyone I came in contact with was amazing and super helpful!"
Pros: "Nothing to like about this airline. Horrible people especially in toronto, really unhelpful, extremely rude."
Cons: "Air line decided they didn't want me to take my connecting flight. Removed my luggage without consulting with me. Offered me a disgusting hotel. Forced me to pay out of pocket for food, taxis, transfers and my own hotel choice. Staff were so rude. No explanation to why they removed my bags. I made it in plenty of time for my connecting flight but airline had just decided. No staff member was interested in answering my questions or helping. They all just wanted to sod off home. they just didn't care."
Cons: "The departure time for the flight was 6:00am and there was no one in the check in counter until 4:15am. There was a long queue for the check in. Not a pleasant waiting time for the check in"
Pros: "Must bring your own electronic device"
Cons: "The temperature in the cabin was Frigid, even with blanket, 2 pairs of socks my coat & scarf I was freezing!"
Pros: "Quick flight"
Cons: "Delays"
Pros: "Very friendly staff."
Cons: "Left late so missed connection. Was put up in a mediocre hotel."
Cons: "Deplaning and entering the terminal was delayed substantially."
Pros: "This is awful flight coz I brought it from kayak"
Cons: "Flight delayed due to plane defect. Stayed in plane for more than 5 hours. Baggage lost. Never made it on time"
Cons: "No free alcohol. Lights didn't turn off ever so I could get some sleep."
Pros: "the crew was great, food was alright, and overall I enjoyed my flight"
Cons: "the only entertainment was able to connect to apple products or a renatble iPad. I don't have an apple product so that was a bit annoying"
Pros: "The flight was comfortable. Entertainment choices were varied and generous."
Cons: "o'Hare needs an upgrade."
Pros: "How quick it waz"
Cons: "How close the seats were"
Pros: "Friendly crew. Very smooth flight. Easy to navigate terminal."
Cons: "Nothing!"
Pros: "The crew was good!"
Cons: "I wished that there were opportunities given for beverages. I also would have liked more explanations on how to connect to the entertainment."
Pros: "I like having the trip map in front of me so I can track progress. Usually I don't get it on flights this short."
Pros: "The crew was friendly, there was entertainment available via the display on the back of the seat."
Cons: "The touchscreen display wasn't working properly, making it difficult to control things like volume. I would have preferred a display with physical buttons that took a bit more time than the weirdly synced touch screen"
Pros: "United delays"
Cons: "Strange reason for delays"
Pros: "He united crew in Chicago were awesome, they got us on a much quicker connection home! Great customer service"
Cons: "UNcomfortable seats. They don’t recline."
Pros: "Entertainment options were very good."
Cons: "Basic economy rules are really poor especially for passengers that travel for business every day. On the one hand, the airline tells us we are very important to them by assigning us with special gold privileges and on the other tells us we are not important to them. It is confusing at best."
Cons: "The sounding was off like the place to insert the Jack was broken"
Pros: "I liked everything was excellent"
Cons: "There was a 10 minutes delay"
Cons: "I hated that the flight was about 90 minutes LATE which made me almost miss my next flight (had I not jogged an entire airport, I would have)"
Pros: "TV and movie choices should be according to 2018 instead of1980. Also TV should be from running Era"
Pros: "My trip started off with airplane problems from the beginning. From my flight being delayed multiple times by air china to the overly packed united to the confusion of the non updated confirmation numbers or the e-ticket number. Even on the day I left upon arriving to the airport my confirmation number they had just given me after all the prior problems still didn't work. Air china had mediocre food with okay entertainment except my headset jack on the TV was broke and I couldn't watch anything. On the last air china flight from Bejing to Bangkok. I couldn't even charge my phone, watch any entertainment and basically was just stuck with no WiFi. Justfly wouldn't compensate for the changes on their end and said I myself would have to ask the airlines for compensation which the.the airlines directed me no where for compensation or even to upgrade my seat. Now I'm finally in Thailand but I'm scared of my return."
Cons: "Everything was really not great. Air china had mediocre food that some of it wasn't bad but other was so so."
Pros: "Captain and crew were brilliant, kept passengers informed throughout as to the delays, as a result all passengers were patient and understanding. Not much more could have been done to improve the experience as the snow and conditions at Dublin airport were out of their hands."
Pros: "My husband and i we want to seat next to each other"
Cons: "1) Chicago O'Hare Airport Airline staff very rude. 2) from Los Angeles to Chicago my husband and i are not sitting to each other. My husband is upset. 3) from Chicago to Los Angeles my husband and i are not sitting to each other. It happened again. Very disappointing. We think the airline doing this intentionally."
Pros: "Boarding was quick and the crew was attentive"
Cons: "The flight left an hour late. When arrived in Detroit the ground crew left our bags on the plane. It took over another hour to figure out what happened. The attendant was not on duty."
Pros: "The price was unreal so I had to jump on this, I was able to get on and off with my backpack no problem. The flights were good, captains were very communicative about times, expectations and when turbulence was present."
Cons: "The check in had to be done in person because of the need to check my bag size, I felt a little insulted that I would have to be checked on my honesty. When I got to the check in it was like watching a special forces team measuring and prodding peoples bags to get them in to the little box even when the shapes were the reason they couldn't fit, not the size of the bags. I literally watched someone fit their bag and the attendant take it out and make it misshaped for the box and show how it didn't slide in. I had no issues with my luggage, but that sucked to watch happen to others. The food and drinks came about 10 minutes before the plane landed."
Pros: "The crew The entertainment options The power options The drinks"
Cons: "10 minutes earlier and the food would have been better. Then again, 10 minutes earlier and wouldn’t have made flight."
Cons: "No leg room so very crammed uncomfortable seating"
Pros: "Crew help and service"
Cons: "Lending was bumpy. , Internet was not Working and no entertainment chenal as well"
Cons: "Didn't make the flight"
Pros: "The crew was very polite at every moment"
Cons: "I really liked everything"
Pros: "They got my vegetarian food order right"
Cons: "Old airplanes both there and back, we had a choice of a few movies on a TV that we couldn't access on demand so you had to start half way through, and the quality was appalling. We were supposedly promised we could stream onto our devices via wifi but this didn't happen"
Pros: "Seat was ok."
Cons: "Didn't find out about the delay until we were almost ready to board. No planning."
Cons: "When I had originally bought tickets our seats were booked together. Upon checking in had to buy two seats together for an extra cost of $50+. Ridiculous"
Pros: "It got us from a to b but not much more to be said!"
Cons: "The idea of the entertainment system broadcast to your hand held device is fine - it didn't work for me though."
Cons: "Such a downgrade from other airlines! Awful! They board backwards. Usually the back seats board on the plane after the special needs people. Makes more sense, people are out of the way. My water was poured into a cup from a big water battle. I like how Jetblue gives me a personal water bottle and a variety of snack option. I was given a "snack mix" on this flight which was not good. I hated this flight and there were NO televisions, or usb ports to charge phones. Never again. They didn't even have enough room for carry on bags for everyone. Thank god I packed light and didn't need to use that option. Good to know United Airlines has crappy everything."
Pros: "Nothing!!! It was handled in a terrible way"
Cons: "The way they didn't care"
Pros: "I liked that it was a quick flight, and take off and landing were smooth."
Pros: "Very friendly, efficient staff"
Cons: "Plane was late to airport. Then there was a huge rush to get us boarded and it was very stressful if we were going to fly or not"
Pros: "The crew was very courteous."
Cons: "The flight was delayed for about an hour - The planes were backed up on the tarmac. It is aggravating to think that you have enough time to make a connection and then to be waiting around for such a long time to take off. Paying for movies."
Pros: "The crew was very good, very attentive."
Cons: "Boarding went quickly but was very unorganized."
Cons: "We reserved wheelchair assistance prior to the flight. We had to wait an extended amount of time to actually get the wheelchair assistance with 5 kids 7 and under. Due to the wait we almost missed our flight, we were literally the last to board the plane. We were hoping to grab some breakfast for the kids as we had a long flight and did not have time to do so because of this delay. This is why we called ahead to reserve the wheelchair. The people checking in did not seem to care about the delay and only told us to be patient. Sad, unfortunate experience with accessibility issues."
Pros: "Crew. Aircraft selection."
Cons: "Well my flight was first delayed for 6 hours then once I tried to change my ticket this customer service woman was so rude and not helpful. Finally this other customer service woman nane Barbara helped me out and change my ticket. Still would never fly United."
Cons: "several people assigned to the same seats, mine included. lots of last minute moving around."
Pros: "Some of the people I dealt with were nice. All of the flight attendants and pilots were nice."
Cons: "United only had one person working to check people in, and due to a lady with 8+ bags that the only agent had to take 20+ minutes with (while the line stacked up behind us), we ended up missing the first leg of our flight. Told us our bags would be checked all the way through, and they weren't. Checked bag got lost on the way back (again, due to misinformation from United on whether our bag would be checked all the way through), and when we got them back they had obviously been rooted through, with no note left by TSA. I fly often, and this was one of the worst flying experiences of my life."
Pros: "The airport was nice and had plenty amenities. Good restaurant choices, places to shop, plenty of places to sit and relax with cell charging stations. Lots to keep you entertained while you have a layover."
Cons: "Plane was over crowded.the seats are narrow and uncomfortable. Person behind me was constantly kicking the back. I was in the window seat and the guy next to me had a large athletic physique and was over-flowing into my personal space. On top of that he had a severe case of toxic flatulence."
Pros: "The comfy seats"
Cons: "The fact that I had to pay to watch tv. Maybe people should have to pay for movies, but not for watching tv. Flights and till we takeoff can take a while. It would be nice to have some free entertainment. The plane was very hot when we were boarding."
Pros: "Crew staff went out of his way to find something for my aisle to snack on when the person next to me asked if there was any snacks on the plane. The plane had to be changed for another plane due to a mechanical issue on the first plane, and the new plane had not been stocked with food after it's previous flight, yet the crew member was able to scrounge up some snacks for us! Also got complimentary directtv - nice, but doesn't make up for not getting home in time yet again."
Cons: "United sucks. I have flown it maybe 10-12 times in the past 2.5 years, mostly back and forth between Chicago and Boston. I have had only 3 round trip flights go without a hitch. Every other trip was delayed. This time 4 hours on my return flight to Boston due to a plane switch, boarding of a new plane to discover a mechanical issue, deboarding, waiting for a new plane, then boarding and sitting on the ground for another 40 min before we were able to take off. I was delayed 1.5 hours on the way to Chicago due to another plane swap (no joke). Still doesn't top but my worst 5 hour delay in Chicago on the way back to Boston because the captain didn't show up. United is atrocious and is my last choice or any airline. Only fly when I'm absolutely forced to now due to no other reasonable choices. They are below delta, JetBlue, American, southwest, and embarrassingly, spirit as well. Terrible."
Pros: "The flight overall was great, easy to board and de-board, and a smooth process from start to finish."
Cons: "Connecting to the in-flight wi-fi to watch movies and tv shows was nearly impossible."
Pros: "quick flight and good landing"
Cons: "Do flights ever come on time??"
Cons: "Lack of communication. Kept us belted down for s very long time. Lacked food service, lacked water service till the very end of the lock down. Then we were given the option to leave the plane as the doors were to be disarmed. But if we did the plane could get clearence and leave with no warning. I missed my connecting transportation, had to scrape my weekend plans, currently searching for a place to stay tonight while they locate my bag. I am cold and left my jacket in my bag. The United counter people are blaming it on the weather. I am sure everything was delayed by the laxadaysical baggage loader. The one person ( or lack of help loading the bags on the plane completely altered my travel plans. I requested assistance for hotel only to be told they are full when in fact several are vacant on the Internet. I should of videotaped the baggage loading in Canada, it would of went viral."
Cons: "They held us on the plane from Indy to Chicago for so long that most of us knew we were going to miss our flights. I ran all the way to my gate to discover that the plane took off 10 minutes earlier than it was supposed to. I was told there were no other flights to LA and I would have to get a hotel until tomorrow. I was only going to be in California for 2 days so every second counts, so when I became upset the man checked again and found me a seat on a plane that took off in an hour. I was grateful but at the same time I was kind of displeased that he didn't offer that to me originally."
Pros: "Crew was nice"
Cons: "Entertainment systems did not function during the trip-a HUGE disappointment when the cost of the flight was over $1100 per person."
Pros: "Punctuality"
Cons: "Food. It is a very long time and there no food enough"
Pros: "-Pounctuality"
Cons: "- Horrible food; - Very old airplane. The oldest I ever flew; - The entertainment system was horrible and not worked. We came the whole flight without having access to anything, neither the map of the flight."
Pros: "The trip had minimal turbulence. The landing was smooth."
Cons: "-The 767 was old. -It did not have any power ports for my laptop or cell phone. -The interior was old and dated, reminiscent of the 1980's. -The TV screen for entertainment seemed to be smaller than a Samsung Note 5. -The seats are unreasonably narrow and not comfortable. -I had an isle seat and my shoulder width is literally wider than the seats. -Every time the isle cart went by, it hit my left shoulder. -The seats in general seating are too small and were cramped. -God forbid if we had to egress out of the plane. -There were no adjustable head rests, like other airlines have. -The Flight Attendant for my section DID NOT make me feel like I was a valued customer, even though I paid over $1500 for flight. -She scolded me for asking "Why," when she TOLD me that I needed to sit in one seat, even though the seat next to me was vacant. She literally treated me like a child. - NOT COOL. Overall, in comparison to my last international flight, I WOULD NOT recommend United. I feel like I paid too much for my experience with United. Aer Lingus has better/newer aircraft, better cabin crew, better entertainment selections to include music and a selection of movies to watch at your convenience, more comfortable seats, provide a better environment, and a better value for your experience. Aer Lingus was also cheaper. So if you are reading this, please shop around if you are considering United to fly."
Pros: "After being so delayed, movies were free."
Cons: "We were delayed over 3 hours. I don't think I've ever flown with United and not been delayed. Plus they never offered us food on the flight, only whatever was complimentary. Just not a great experience."
Pros: "Flight left OT."
Cons: "Uncomfortable slimline seats."
Pros: "Everything went smoothly and even got there 30 minutes ahead of schedule! Boston airport was excellent with bags already on the carrousel before we got to the baggage area!"
Pros: "Safe flight"
Cons: "Better service would be nice"
Pros: "Flight attendants were nice."
Cons: "Had several delays also a mechanical issue, I've had the same problem a few other times with United in the past, most likely not booking a flight with them again."
COVID-19 information

Safety measures for airlines flying from Illinois to London

Airlines flying from Illinois to London have enacted additional safety measures and adjusted policies to better accommodate travelers. Policies vary by airline.

Heightened sanitation

Daily cleaning, installation of cabin HEPA filters on flights from Illinois to London

Mandatory masks

Masks required on board, masks provided on flights from Illinois to London

Social distancing seating

Middle seats unavailable to book on flights from Illinois to London

Pre-flight testing

Testing for antibodies, testing for symptoms for flights from Illinois to London

Flexible cancellations

Waiving of change fees. Search flexible flights from Illinois to London

Book cheap flights from Illinois to London

Recent round-trip flight deals

7/11Mon
1 stopAir Canada
3h 57mORD-YXU
7/18Mon
1 stopAir Canada
9h 14mYXU-ORD
$328
7/11Mon
1 stopAir Canada
3h 57mORD-YXU
7/18Mon
2 stopsAir Canada
14h 57mYXU-ORD
$342
7/20Wed
1 stopDelta
4h 06mORD-YXU
7/31Sun
2 stopsDelta
13h 03mYXU-ORD
$370
7/11Mon
2 stopsAir Canada
16h 22mORD-YXU
7/18Mon
2 stopsAir Canada
14h 57mYXU-ORD
$389
7/20Wed
1 stopAir Canada
5h 02mORD-YXU
7/31Sun
1 stopAir Canada
5h 19mYXU-ORD
$424
6/17Fri
2 stopsDelta
13h 51mORD-YXU
6/19Sun
2 stopsDelta
13h 05mYXU-ORD
$558
6/12Sun
1 stopAir Canada
5h 23mORD-YXU
6/19Sun
1 stopAir Canada
4h 15mYXU-ORD
$579
6/13Mon
1 stopAir Canada
3h 53mORD-YXU
6/15Wed
1 stopAir Canada
4h 15mYXU-ORD
$584
6/17Fri
1 stopUnited Airlines
6h 14mORD-YXU
6/19Sun
1 stopUnited Airlines
6h 45mYXU-ORD
$595
6/16Thu
2 stopsDelta
13h 51mORD-YXU
6/20Mon
2 stopsDelta
13h 05mYXU-ORD
$601
6/17Fri
1 stopWestJet
21h 55mORD-YXU
6/20Mon
1 stopWestJet
23h 41mYXU-ORD
$606
6/13Mon
2 stopsDelta
13h 51mORD-YXU
6/15Wed
2 stopsDelta
11h 05mYXU-ORD
$618
6/17Fri
1 stopWestJet
21h 55mORD-YXU
6/20Mon
2 stopsWestJet
22h 33mYXU-ORD
$620
6/13Mon
1 stopAir Canada
3h 53mORD-YXU
6/15Wed
2 stopsAir Canada
6h 45mYXU-ORD
$640
6/16Thu
1 stopAir Canada
3h 58mORD-YXU
6/20Mon
1 stopAir Canada
5h 25mYXU-ORD
$646
9/16Fri
2 stopsDelta
12h 30mORD-YXU
9/22Thu
2 stopsDelta
11h 22mYXU-ORD
$666
6/16Thu
1 stopUnited Airlines
5h 23mORD-YXU
6/20Mon
2 stopsUnited Airlines
8h 17mYXU-ORD
$700
7/20Wed
2 stopsDelta
11h 14mORD-YXU
7/31Sun
2 stopsDelta
13h 03mYXU-ORD
$719
9/16Fri
2 stopsDelta
12h 30mORD-YXU
9/22Thu
1 stopDelta
6h 41mYXU-ORD
$909
9/16Fri
1 stopAir Canada
4h 23mORD-YXU
9/22Thu
1 stopAir Canada
16h 28mYXU-ORD
$960

Search by stops

Search by airline

Search by price

Recent one-way flight deals

6/14Tue
2 stopsDelta
13h 51mORD-YXU
$265
6/14Tue
1 stopWestJet
21h 55mORD-YXU
$271
6/3Fri
2 stopsDelta
15h 16mORD-YXU
$282
6/19Sun
2 stopsUnited Airlines
6h 32mORD-YXU
$293
6/3Fri
1 stopAir Canada
5h 03mORD-YXU
$374
6/16Thu
3 stopsWestJet
30h 20mORD-YXU
$1,126

Search by stops

Search by airline

Search by price

Flights to London

Destination:

London (YXU)Canada

Return flight deals:

London - Illinois

Cabin classes:

$341

Browse origins:

Browse destinations:

$370