$337 Find Cheap Flights from United Kingdom to Chicago O'Hare Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to O'Hare Intl departing on 1/21. 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 Chicago O'Hare Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Chicago
These are the airlines KAYAK users have selected most often from within our search results for flights to Chicago
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Everything you should know

Cheapest round-trip
$503
Overall average: $667
Scandinavian Airlines
Thu 1/29Wed 2/11
BHX - ORD • 1 stop
Cheapest non-stop
$558
Typical prices: $596-$817
Austrian Airlines
Fri 1/9Tue 3/31
LHR - ORD • Non-stop
Our travelers' advice
AI-powered summary based on content written by KAYAK users. AI can make mistakes.
Have light luggage for the long walk to the gate.
Allow extra time for TSA bag rechecks at O'Hare.
User tips
User tips
User tips
User tips
Top airlines
United Airlines
Most flights • 21 per week
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
February
Cheapest • 18% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to O'Hare Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from the United Kingdom to O'Hare Intl

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from the United Kingdom to O'Hare Intl 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 the United Kingdom to O'Hare Intl

Thu, Jan 29 - Wed, Feb 11
Scandinavian Airlines Logo
7:10 pm - 4:55 pm
BHX
-
ORD
27h 45m1 stop
Scandinavian Airlines Logo
7:20 pm - 6:30 pm
ORD
-
BHX
17h 10m1 stop
$503Scandinavian Airlines
Thu, Jan 29 - Wed, Feb 11
Scandinavian Airlines Logo
7:10 pm - 4:55 pm
BHX
-
ORD
27h 45m1 stop
Scandinavian Airlines Logo
7:20 pm - 6:30 pm
ORD
-
BHX
17h 10m1 stop
$505Scandinavian Airlines
Thu, Feb 12 - Thu, Feb 19
Scandinavian Airlines Logo
7:10 pm - 4:45 pm
BHX
-
ORD
27h 35m1 stop
Scandinavian Airlines Logo
7:20 pm - 6:30 pm
ORD
-
BHX
17h 10m1 stop
$527Scandinavian Airlines
Thu, Feb 12 - Thu, Feb 19
Icelandair Logo
11:15 am - 5:20 pm
GLA
-
ORD
12h 05m1 stop
Icelandair Logo
6:30 pm - 9:55 am
ORD
-
GLA
9h 25m1 stop
$549Icelandair
Tue, Jan 27 - Sat, Jan 31
Icelandair Logo
12:20 pm - 5:20 pm
EDI
-
ORD
11h 00m1 stop
Icelandair Logo
6:30 pm - 10:00 am
ORD
-
EDI
9h 30m1 stop
$549Icelandair
Mon, Mar 9 - Sun, Mar 22
British Airways Logo
12:10 pm - 6:55 pm
LHR
-
ORD
11h 45m1 stop
British Airways Logo
6:10 pm - 6:55 am
ORD
-
LHR
7h 45mnonstop
$555British Airways
Wed, Apr 29 - Thu, May 7
British Airways Logo
8:50 am - 2:00 pm
LHR
-
ORD
11h 10m1 stop
British Airways Logo
4:16 pm - 9:10 am
ORD
-
LHR
10h 54m1 stop
$557British Airways
Sat, Feb 21 - Sat, Feb 28
American Airlines Logo
11:20 am - 11:15 pm
LGW
-
ORD
17h 55m1 stop
American Airlines Logo
2:31 pm - 9:00 am
ORD
-
LGW
12h 29m1 stop
$557American Airlines
Fri, Apr 24 - Mon, Apr 27
Austrian Airlines Logo
6:00 am - 1:20 pm
LHR
-
ORD
13h 20m1 stop
Austrian Airlines Logo
6:10 pm - 8:30 am
ORD
-
LHR
8h 20mnonstop
$560Austrian Airlines
Sat, Feb 21 - Sat, Feb 28
American Airlines Logo
11:20 am - 11:15 pm
LGW
-
ORD
17h 55m1 stop
American Airlines Logo
10:28 am - 9:00 am
ORD
-
LGW
16h 32m2 stops
$561American 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 month to fly to Chicago O'Hare Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Chicago O'Hare Intl Airport, 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 to Chicago O'Hare Intl Airport is September, where tickets cost $488 on average for one-way flights. On the other hand, the most expensive months are August and July, where the average cost of tickets from the United Kingdom is $951 and $740 respectively. For return trips, the best month to travel is February with an average price of $587.

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 $662 one-way - $766 round-trip.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Chicago O'Hare Intl Airport, 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, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 44 days before departure.

Good to know

Low seasonFebruary
Cheapest flight$337
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly with an average 21% increase in price.
Flight from Edinburgh 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
LHR
-
ORD
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
LHR
-
ORD
Apr 2025
Have a light luggage as much as you can. Boarding gate walk is not a joke.

FAQs - booking Chicago O'Hare Airport 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.

  • 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 $884. The cheapest price found on KAYAK in the last 2 weeks cost $513 and departed from London Heathrow Airport.

  • What is the cheapest day to fly to Chicago?

    Based on KAYAK data, the cheapest day to fly to Chicago is Wednesday where tickets can be as cheap as $782. On the other hand, the most expensive day to fly is Monday, where prices are $887 on average.

  • How does KAYAK find such low prices on flights to Chicago O'Hare Airport?

    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 O'Hare Airport.

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

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

    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 O'Hare Airport 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 O'Hare Airport?

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

  • 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 morning, when flights cost $818 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 $914.

Top tips for finding cheap flights to Chicago O'Hare Airport

  • Looking for cheap airfare to Chicago O'Hare Airport? 25% of our users found round-trip tickets to Chicago O'Hare Airport for the following prices or less: From Edinburgh $784
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Chicago O'Hare Airport 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

 
See real verified KAYAK customer reviews for airlines flying to Chicago. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from the United Kingdom to Chicago. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
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 9122 reviews
7.7Boarding
8.1Crew
7.1Entertainment
7.3Comfort
6.6Food
Airline reviews

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.

4.0 OkayAnonymous, Dec 2025
LIR - ORD
Read more United Airlines reviews

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??

They did the one thing that really matters - got to Chicago early.

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

Very bad! They kept delaying my flight and wouldn’t do anything about it

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

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

This flight leg was fantastic - super comfortable and a great selection of things to watch on the TV. Staff were excellent, really above and beyond.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

It was a typical flight. We had a delay which seems to be the normality now. And we had no in flight service due to conditions.

After we landed we sat on the tarmac for 1.5 hours waiting to get to our gate. Ridiculous.

Flight, food and crew were all good, friendly and very satisfactory.

Terrible. Flight delayed for more than 8 hours with only a $12 meal voucher provided for the inconvenience. The airplane did not have breaks on arrival yet they still made us go through the motions and board on time knowing we could not take off then sit for 40+ minutes before having to get of the time. A complete waste of my time. I cannot believe they can stay business with these shenanigans. I’ll avoid this company like the plague moving forward as the lack of accountability is disgraceful.

This was the best 2 flights I have had with American out of SGF. Great crew both flights.

Premium economy seat was decent. As always poor headphones, poor food and beverage, crew is not overly friendly

Like - the crew were nice Dislike - sitting on the tarmac for long periods after boarding and landing.

I was not admitted to the flight!!! i need a refund for this.

One of the best flights I've been on in a while. Very genuinely friendly staff. Courteous, kind, respectful. On a past flight (not Aer Lingus) I remember being woken up rudely to put my seat forward. Like a child being berated for something. Oddly jarring experience when someone could just tap you gently on the shoulder and gesture kindly. But I noticed the Aer Lingus staff were incredibly patient with everyone on the plane. It's the holiday season and I noticed a lot more elderly customers on the plane than I typically see flying, and the staff went above and beyond with helping accommodate people. Service throughout the flight was flawless. They came through offering water, and picking up garbage at perfect intervals. Seemed like this flight, everyone was on point. And the flight landed early on top of that

Seats are small, but comfortable and more space around you, so for a normal person the seats are perfect. If you are a big and fat individual, I would not think the seats are comfortable. All else was good and normal. Lots of movies to watch.

The biking process was confusing and I was called for a seat assignment from I number I repeatedly though was spam, but the flight itself was great

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

I think the extra charges for seating with no added advantage and the added charges for baggage are excessive compared to other airlines.

I had zero issues with the flight. I did have issues with the staff at the airport. We missed out flight due to a delay with another airline. Talking to the staff and trying to get a new flight arranged was challenging. One guy was able to try to help us and got us on a new flight, but other staff was dismissive and clearly let us know it wasn’t their problem. All I kept thinking was… this is why air lingus has such a poor customer service reputation. I will be avoiding this airline in the future.

Experience was great overall. However, the connection time between my flights (1hr 15 mins) was too short. We had to get through security check and US immigration in that time, and I made it to the gate just as they were announcing it was about to close. Flights with such a short connection time should maybe not be offered for purchase, or an advance alert would be helpful. Other than that the in-flight experience was excellent, especially the food. Many thanks!

The seats needs to be comfortables, at least please add more padding to the seats.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

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.

Never again. Terrible hospitality and human decency for an international flight. No food, no snacks, no beverages, blankets, pillows, limited entertainment. Tiny seats without any cushion and some do not even recline. I was shocked that they did not charge for seat belts. Never in my life have I witness asking for "spare change" for charity before landing on both legs of the flight. Icelandair can contribute on their own to said, so called, children's charity with the money saved from providing 3 centimeters of tea and water to hungry and dehydrated passengers.

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.

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

Iceland air transfer was bad. They lost my luggage and I just received it 11/1

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

It was too cold in the plane my feet froze

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.

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

Check-in and boarding were great. On flight staff were rude and disrespectful. Paid for extra room and found it incredibly cramped. Bathrooms kept in poor condition. Overall negative experience.

Great seat in premium economy, great food and drinks throughout lots of in flight entertainment. 1 hour 40 min delayed flying out , 2 1/2 hour wait at passport control in tampa

My seat cushion was poor. The cushion was compressed and was uncomfortable for such a long flight.

I was in a bulkhead seat and my tray table wasn't level. Eating was difficult.

Audi visual not working for a whole group of seats in first class. How does a plane leave the main hub in such poor condition? How much that we can’t see so immediately is also compromised?

main meals are horrible but then you dont fly for the food

It was good. Couldn’t Check in online and select seats

It was great. Enough space and room for legs . Great service to.

⭐ British Airways Review — A Journey of Highs, Lows, and Lessons ⭐ I recently flew Business Class round-trip from Boston to Mumbai with British Airways, and my experience was a tale of two extremes — from disappointment to exceptional service, and then back to inconsistency. Boston → London: A Surprisingly Poor Start My journey began on a disappointing note. On a 6-hour Business Class flight, I was surprised to discover that there wasn’t a single proper vegetarian meal option available. I was offered a few bakery items only after repeatedly requesting something to eat. The flight attendant shrugged, offered no solution, and eventually — quite literally — threw some bread at me after much delay. This was not only disheartening, it was extremely surprising given my wonderful Business Class experience with BA last year. I stepped off that flight genuinely hungry and had to make a mad dash to the lounge just to get a proper meal. London → Mumbai: A Complete Turnaround The next sector restored my faith in British Airways. The entire crew was warm, welcoming, attentive, and genuinely caring. A special shoutout to Phiroze and the entire team serving the Business Class cabin — their professionalism, hospitality, and thoughtful service were extraordinary. They truly embodied what makes British Airways a global leader, and I am deeply grateful for the experience they provided. This is the BA I know and love. Mumbai → London: A Strange Meal Schedule This sector was generally fine, but the meal timing was puzzling. Lunch at 10:30 AM — for a Business cabin — felt unusual, and most passengers, including myself, barely touched it. The rest of the service was smooth, but the scheduling definitely needs a rethink. London → Boston: Mixed Experience Again The flight itself was decent, but the Business Lounge at Heathrow for this leg was a letdown. Arrived during lunch hours: no hot vegetarian options available Lounge area: dirty dishes everywhere Even after politely alerting the staff, the dishes were ignored and left uncleared For a premium cabin passenger — and at one of the world’s busiest international hubs — this was disappointing. Overall Impression My journey with British Airways felt inconsistent — two great sectors sandwiched between two that fell short of the BA standard. When BA is good, it is world-class. When it misses, the gap is noticeable. I genuinely hope the airline takes this feedback as constructive insight. I continue to believe in British Airways, and I commend the outstanding crew on the London → Mumbai sector — they were the highlight of my entire trip. With a little more focus on vegetarian meal availability, lounge service, and consistency across crews, BA can ensure every Business Class passenger experiences the premium journey they promise.

Traveling to a place near O'Hare Intl?

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