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Cheap Flights from the United Kingdom to O'Hare Intl

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

Recent round-trip flight deals from the United Kingdom to O'Hare Intl

Fri, Sep 25 - Mon, Sep 28
Multiple Airlines Logo
11:55 pm - 2:00 pmEDI  Edinburgh Turnhouse-ORD Chicago O'Hare Intl
20h 05m1 stop Dublin
Multiple Airlines Logo
9:00 pm - 2:00 pmORD  Chicago O'Hare Intl-EDI Edinburgh Turnhouse
11h 00m1 stop Dublin
$205Multiple Airlines
Wed, Sep 9 - Wed, Sep 23
Multiple Airlines Logo
8:30 am - 2:00 pmBHX  Birmingham-ORD Chicago O'Hare Intl
11h 30m1 stop Dublin
Multiple Airlines Logo
3:45 pm - 7:55 amORD  Chicago O'Hare Intl-BHX Birmingham
10h 10m1 stop Dublin
$207Multiple Airlines
Wed, Sep 16 - Fri, Sep 18
United Airlines Logo
12:10 pm - 12:35 pmLHR  London Heathrow-ORD Chicago O'Hare Intl
30h 25m1 stop Zurich
United Airlines Logo
10:50 am - 6:55 amORD  Chicago O'Hare Intl-LHR London Heathrow
14h 05m1 stop Washington, D.C. Dulles Intl
$637United Airlines
Wed, Oct 28 - Fri, Oct 30
United Airlines Logo
5:30 pm - 12:05 pmLHR  London Heathrow-ORD Chicago O'Hare Intl
23h 35m1 stop Frankfurt am Main
United Airlines Logo
8:50 am - 6:40 amORD  Chicago O'Hare Intl-LHR London Heathrow
16h 50m1 stop Washington, D.C. Dulles Intl
$638United Airlines
Wed, Oct 7 - Wed, Oct 14
Aer Lingus Logo
7:40 am - 2:00 pmLHR  London Heathrow-ORD Chicago O'Hare Intl
12h 20m1 stop Dublin
Aer Lingus Logo
9:00 pm - 8:20 pmORD  Chicago O'Hare Intl-LHR London Heathrow
17h 20m1 stop Dublin
$648Aer Lingus
Fri, Nov 27 - Thu, Dec 3
British Airways Logo
11:00 am - 1:45 pmLHR  London Heathrow-ORD Chicago O'Hare Intl
8h 45mnonstop
British Airways Logo
5:10 pm - 6:55 amORD  Chicago O'Hare Intl-LHR London Heathrow
7h 45mnonstop
$652British Airways
Fri, Nov 6 - Mon, Nov 9
British Airways Logo
11:00 am - 1:45 pmLHR  London Heathrow-ORD Chicago O'Hare Intl
8h 45mnonstop
British Airways Logo
9:50 pm - 11:35 amORD  Chicago O'Hare Intl-LHR London Heathrow
7h 45mnonstop
$652British Airways
Thu, Nov 5 - Sat, Nov 7
Austrian Airlines Logo
9:05 am - 2:00 pmLHR  London Heathrow-ORD Chicago O'Hare Intl
34h 55m1 stop Vienna Intl
Austrian Airlines Logo
1:30 pm - 6:40 amORD  Chicago O'Hare Intl-LHR London Heathrow
11h 10m1 stop Washington, D.C. Dulles Intl
$668Austrian Airlines
Thu, Sep 10 - Sun, Sep 20
Aer Lingus Logo
2:25 pm - 7:15 pmMAN  Manchester-ORD Chicago O'Hare Intl
10h 50m1 stop Dublin
Aer Lingus Logo
3:45 pm - 7:40 amORD  Chicago O'Hare Intl-MAN Manchester
9h 55m1 stop Dublin
$669Aer Lingus
Sat, Sep 19 - Mon, Sep 21
Austrian Airlines Logo
7:30 pm - 1:20 pmLHR  London Heathrow-ORD Chicago O'Hare Intl
23h 50m1 stop Vienna Intl
Austrian Airlines Logo
12:55 pm - 6:55 amORD  Chicago O'Hare Intl-LHR London Heathrow
12h 00m1 stop Washington, D.C. Dulles Intl
$681Austrian Airlines
Booking Insights

KAYAK's insights & trends for flights to O'Hare Intl

Get data-powered insights and trends for flights to O'Hare Intl to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Chicago?

In the last 5 days, the cheapest flight deal to Chicago was found on the route from Glasgow, at $205 return. The most popular connection is from London to Chicago and KAYAK users have found round-trip deals for as low as $637 in the last 5 days.

What is the cheapest day to fly to Chicago?

Based on KAYAK data, the cheapest day to fly to Chicago is Friday where round-trip tickets can be as cheap as $914. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are $1,102 on average.

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

The cheapest month for flights to Chicago O'Hare Intl Airport is February, where tickets cost $673 on average for return flights. On the other hand, the most expensive months are August and July, where the average cost of tickets from the United Kingdom is $1,092 and $1,057 respectively. For one-way flights, the best month to travel is September with an average price of $644.

What is the cheapest time of day to fly to Chicago O'Hare Intl Airport?

The cheapest time of day to fly to Chicago O'Hare Intl Airport is generally in the afternoon, when round-trip flights cost $929 on average. The most expensive time of day to fly to Chicago O'Hare Intl Airport is generally in the evening, which is peak travel time and where the average cost of a ticket is $981.

What is a good deal for flights to Chicago O'Hare Intl Airport?

If you’re looking for cheap airfare to Chicago O'Hare Intl Airport, 25% of our users found tickets to Chicago O'Hare Intl Airport for the following prices or less: From London Heathrow Airport $727 round-trip.

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

To get a below average price, you should book around 5 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low season

January

Cheapest flight

$183
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 19% increase in price.
Flight from Glasgow to Chicago

Flights from the United Kingdom to O'Hare Intl: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from the United Kingdom to O'Hare Intl 
Verified travelerFlew with British Airways-Apr 2025
Make sure to allow ample time between connecting flights. I have to hoof it when I realized that TSA required bags to be picked up and rechecked.
MichaelFlew with British Airways-Apr 2025
Have a light luggage as much as you can. Boarding gate walk is not a joke.

FAQs - booking Chicago flights

  • Are there on-site hotels at Chicago O'Hare?

    If you are looking for a room on-site at O'Hare Airport, you can check in at the Hilton Chicago O'Hare Airport Hotel. It is located within walking distance of all domestic terminals and can also connect with the international terminals via the Airport Transit System (ATS). It offers a number of quality rooms as well as a fitness club, restaurant, and barbershop, ideal for getting some rest after a long flight.

  • How do I get from O'Hare Airport to downtown Chicago?

    Getting a taxi is without a doubt the quickest way: you can find taxi stands outside the baggage claim area of each terminal and a fare to downtown Chicago should cost somewhere in the region of $40 (roughly £29), although this can change depending on traffic, and the journey takes on average 30min. The most affordable way of getting to downtown Chicago is by going to the CTA Blue Line station within the airport and catching one of the L trains. A full fare costs around $5 (£3.55) and the journey takes roughly 45min, depending on where you want to go.

  • How do I get between terminals at Chicago O'Hare (ORD) airport?

    To get around O'Hare Airport, use the Airport Transit System (ATS). This is an automated monorail that moves passenger around, connecting all four terminals, including both domestic and international areas, with key points around the airport including the remote car parking areas and the rental car area found at the Multi-Modal Facility. The ATS is free-to-use at the airport and can be found by following the red train symbol on signposts around O’Hare airport.

  • How can I get from O'Hare (ORD) to Midway International (MDW) via public transport?

    To get to Midway International Airport, you should catch the CTA Blue Line train as you would if going to downtown Chicago. Change at the Clark/Lake Station from the Blue Line to the Orange Line and continue your journey to Midway Station. It is recommended to leave 2h for your trip between the two airports.

  • What is the cheapest flight to Chicago?

    In the last 5 days, the cheapest flight deal to Chicago was found on the route from Glasgow, at $205 return. The most popular connection is from London to Chicago and KAYAK users have found round-trip deals for as low as $637 in the last 5 days.

  • How far is Chicago O'Hare Intl Airport from central Chicago?

    Chicago O'Hare Intl Airport is 16 miles from the center of Chicago.

  • How much is a flight to Chicago?

    On average, a flight to Chicago costs $974. The cheapest price found on KAYAK in the last 2 weeks cost $513 and departed from London Heathrow Airport.

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

    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 to Chicago.

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

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

    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 Chicago 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 to Chicago?

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

Top tips for finding cheap flights to Chicago

  • Looking for cheap airfare to Chicago? 25% of our users found round-trip tickets to Chicago for the following prices or less: From Edinburgh $779
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Chicago flight deals.
  • For international flights to Chicago O'Hare (ORD), look out for offers from Lufthansa, Finnair, and TAP Portugal, all of which offer direct flights without any changes or stops.
  • If travelling with a baby, you can find Mother's Rooms in all terminal buildings that are specifically for nursing mothers. For example, in Terminal 1 the Mother's Room is located beside Gate B10.
  • If you feel the need to freshen up after your journey, visit one of the Terminal Getaway Spas at O'Hare Airport. These are located in Terminal 1 and Terminal 3.
  • At the Multi-Modal Facility building at O'Hare Airport, you will find a number of important services such as regional buses and desks for the major car hire companies if you are planning on picking up a hire vehicle.
  • If getting picked up from the airport, it is recommended to use the Cell Phone Lot where drivers can wait free of charge until their passenger is ready to be collected.

Reviews of the top 5 airlines serving from the United Kingdom to O'Hare Intl

 
Need help choosing which airline to fly with to O'Hare Intl? 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.
7.4
United AirlinesOverall score based on 10120 reviews
8.1Crew
7.1Entertainment
6.7Food
7.7Boarding
7.3Comfort
Airline reviews

On boarding crew at the airport called in the boarding numbers too early meaning before the previous line was completed resulting in later numbers getting to board ahead. Also she asked those who boarded from number 3 to have the tags in their carry-on bags and leave it in the jet bridge. Most of the overhead bins were empty though. This is more work for the ground staff in addition to more inconvenience for passengers waiting to get their carry-ons from the jet bridge.

6.0 GoodRaghupathy, Aug 2026
Read more United Airlines reviews

On boarding crew at the airport called in the boarding numbers too early meaning before the previous line was completed resulting in later numbers getting to board ahead. Also she asked those who boarded from number 3 to have the tags in their carry-on bags and leave it in the jet bridge. Most of the overhead bins were empty though. This is more work for the ground staff in addition to more inconvenience for passengers waiting to get their carry-ons from the jet bridge.

ok, butt flght was delyed for 2,5h from Frankfurt, and next Flight to Columbuse same

Flight was great. Almost miss my connecting flight due to late departure from Haneda. Had to run all through airport in Chicago to make the flight. Experience was great for 1st time flyers using ANA Airlines.

Like the fact that the boarding was expedited. But the delay and chaos around the onboarding was not appreciated.

Seats are complete BS for 10 hrs. The guy at counter canceled our return flight from europe. Lufthansa on the way back made United look like a trailer park gathering. If given the opportunity, I will never fly united again. Lufthansa seats werent much better to be fair but the service was a 10 out of 10. Incant express how difficult umited made my trip.

It was a great experience to fly with ANA, the sit is very comfortable.

The flight crew were very helpful. The seats were very close together. There was barely room to sit without touching the person next to you.

I’m an EP on AA every year for more than a decade but this was a very pleasant and surprising experience. Clean and sizable plane for HOU to CHI. 5 row first class. And excellent food in first class the steak option was really good. Your flight attendants even better. Seat 5A

United has come a long way, it’s been a fantastic experience traveling with them.

Late start, late arrival and very uncomfortable seating. If they schedule a takeoff at a specific time, how can they not know the traffic at the airport will be heavy and delay flights at that time? I paid for legroom but when seated next to an oversized person, I had no elbow room. Also, who wants to rub hips with a large stranger for over 2 hours? I ended up leaning toward the aisle the entire flight and being bumped every time someone passed by. Paying for legroom should include side-to-side space, too. This happened on both domestic flights I had within the past 2 weeks.

Very comfortable flight. Great service, food options, and entertainment options. With Wi-Fi!

Small plane. Tight seating . What can one say except that it was fast!

The flights are literally always delayed arriving, boarding and taking off so they are always late for the connection. I planned ahead so I was okay but many others aren't. The food was terrible. The staff was very pleasant. I appreciate boarding back to front.

All aspects were excellent - it helped that the flight was only 2/3 full and I had no one sitting in my row. The Pre-check (US Passport Control and Customs) in Dublin made everything so easy when we arrived in Chicago.

Very nice experience. Flight had good entertainment system and good food options. Customer service was very friendly and nice as well.

The same as I stated prior. We incurred extra costs that should be reimbursed, given we were not communicated with about schedule changes.

My flight from Dublin was delayed two hours which ment that I missed my connecting flight to Phoenix. American Airlines provided a hotel room and rebooked my flight for 7:30 AM the next day. I didn't get to the room until 11 pm and I had to be at the airport the next day by 5 AM. The airlines did their best but the schedule was challenging for an 81 year old.

I was pleasantly surprised and enjoyed the services of the airline since flying is not my favorite thing. My goal was to be with my brother's family in Manchester after his death. All staff was helpful, the food appreciated since I selected an overnight flight. Every aspect of the experience was comforting. I plan to return to Manchester in order to attend my brother's funeral in October and hope that I am able to find a reasonable priced flight. Thank you

I like Aer Lingus so that is why I’m writing this critique so they can become better. The boarding gate was too small to board properly. Our seats were toward the back of the plane knowing we would be boarding after business class, we moved to that area after business class boarded. An Aer Lingus employee told us we couldn’t stand there. We explained we were the next group to board and wouldn’t even be able to hear when our boarding was called. She didn’t care and was not very professional. The cabin was freezing. I wouldn’t feed my dog the food. We were over an hour late coming into chicago because of weather which can’t be avoided. I asked the crew if they could make an annoucement for before whose final destination is chicago to wait and allow the people with connecting to deplane first. He said there are a lot of people with connecting flights. He said, it doesn’t matter. Well, yes it does. He could have been more considerate of his passengers.

Very pleasant staff, there was some turbulence but the captain was very apologetic and gave notice where possible.

There were no places to sit at the gate. Most people had to sit on the floor or stand waiting for the gate to open and board. We were told we needed passport and the person hardly looked at them. Maybe for 2 seconds. No announcement made asking to board by row or group. On a 5.5 hour flight the crew only came through the cabin 2 times offering water and buy everything else. For the price of the ticket at least offer free soda! The airliner was very comfortable

Crew was wonderful. I knew going in that the seats were not lie-flat in business class, but they reclined less than I expected. To save on waste, you have to ask for which pieces of the amenity kit you are interested in, which they will gladly give to you. Flight was fairly short, so no issues. I did have one piece of luggage not show up at terminal on landing. They were great about looking for it. Found it...it actually did make the flight and was listed as "not picked up" (?????--we stayed over an hour looking for it, including in the odd-sized baggage claim.) Since "not picked up" they will not ship to my house and I have to go back to airport, which is in another town. I probably could have pressed this issue, but headed back to airport for another flight anyway, so will pick up then.

It didn't happen. Icelandair cancelled the flight from Nuuk, Greenland to Reykjavik, Iceland so I couldn't fly to Portland. Additionally Icelandair rebooked me on a flight that got cancelled too.

How can the airline deploy the oldest 757-200 with a broken down entertainment system and no WiFi for a cross Atlantic 7:50 hr torture chamber experience?? My seat 3A couldn’t be reclined. The footrest was flimsy and useless. And there’s no leg support unlike their newer 737-Max which they lavish on intra-Europe routes. Shame!!

Only drinks included in economy class was water and coffee seat on the 737 were hard as rock. The landing and passport control in Iceland are the worst I have ever seen. 2 hours to clear customs ???? 3 attendants at pass port control out of more than a dozen closed. I” ll never fly to Iceland or transfer through this airport again.

The ticket was reserved in my name but not paid for by underpricer. Alaska airlines was unable to issue my ticket (could not connect the ticket with the PNR) due to an error with underpricer and I spent the better part of 2 hours at the ticket counter trying to rectify.

At least one soda free, felt like I was nickeled to death.

Comfort of seats is not good. Like sitting on a rock for 6 hours. Also no in flight food and limited beverages unless you pay is not nice. Need flight to be dark during the “night” but attendants don’t ask for shades to be lowered..

Good. Lacking overhead bin space. No food offered but you can order online or in flight and pay for snacks.

We had to be bussed to the plane. And it was raining. Not a pleasant experience.

the blanket was great and pillow helped. really need a toothpick packed with meals

Very comfortable plane. The food was very good (for airplane food). The crew was great

The legroom was lacking and the entertainment system lacked adequate selection of older films. Modern films are generally not very good.

Perfect airline, super friendly, great service, tasty food. Would fly again.

Everything could have been better. What needed to be wrong with United went wrong

It was good. The seats in economy weren’t bad

Very good. Comfortable and I felt well taken care of from start to finish

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.

I will never want to book with these people. They are arrogant and rude. Food was really really bad, crew was even worst

Check-in experience, for business call please provide a premium experience

Everything. Employees offered to help me because I had to use a cane.

Unfortunately, my flight was cancelled because of some sort of emergency over the Atlantic and had to return to London. While I think British Airways made every effort to mitigate the situation, I must say it was still pretty unpleasant. I do appreciate the fact, however, that British Airways put my safety first…and I think the effort to correct a bad situation was very sincere. But I think the process might be handled better in future.

The seat pads are past there sell by date now and are uncomfotable. Also, with screens in the back of the seat, the seats shouldnt be able to recline as this puts rhe screen in your face.

As I have said it sucked, the ticket counter to have to find and pay for another airline to get home. Now I understand this happened over the weekend but they should have someone there to talk to us instead of throwing the regular crew under the bus.

Not so good with their baggage handling as they damaged one of my check in luggage

This flight from London to Chicago was actually on an AA airline. I did book through BA but the flight was AA. Great flight, hectic in Chicago, I wouldn't choose to fly through Chicago again, but that's not the airlines fault. The flight itself was great.

Seats were way too small. I got claustrophobic waiting for trash from meal to be taken away. I couldn't move to even close my tray until trash was taken.

The whole experience was very disappointing. Drinks could have been served and offered more frequently. The seats were reasonable but considering I paid for premium economy, I felt cheated. I flew premium economy with Japanese Airlines ANA 5 years ago and their service was by far, superior. We had access to the club lounge, better seats and excellent service. Out of 10, I would rate the experience as 4. Everything felt cheap and the Airbus aircraft are far better and more comfortable

Traveling to a place near O'Hare Intl?

Book flights to O'Hare Intl if you plan to visit one of these locations
Gurnee
Merrillville
South Haven
Oak Brook
Tinley Park
Saint Joseph
Hammond
Elk Grove Village
Des Plaines
Hoffman Estates
South Holland
Portage
Oakbrook Terrace
Willowbrook
Lansing
Delavan
Alsip
Northbrook
Lisle
Valparaiso

Everything you need to know for your flight to O'Hare Intl

Information on the airport you'll fly into in Chicago