ORD - LON

$306 Find Cheap Flights from Chicago O'Hare Airport to London - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from O'Hare Intl to London departing on 1/4. 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

Save 21% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$673
Multiple Airlines
Fri 11/6Mon 11/16
ORD - LTN • 1 stop
Cheapest non-stop
$711
Typical prices: $635-$932
British Airways
Wed 10/21Wed 10/28
ORD - LHR • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
British Airways premium economy adds extra legroom; Iberia offers wider seats.
American Main Cabin Extra adds early boarding; confirm seat selection before boarding.
Expert advice
Expert advice
+1
+1
Expert advice
Expert advice
+1
Nonstop flights
You can fly direct with American Airlines, British Airways and United Airlines. Average duration is 8h 02m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
Insights
Insights
Insights
Insights
Avoid delays
Most punctual • 77% on-time
Best time • Fewest delays
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $404 (round-trip)
Shortest trip • 10h 12m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 25% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to London!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from O'Hare Intl to London (ORD-LON)

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

Fri, Nov 6 - Mon, Nov 16
Multiple Airlines Logo
6:30 pm - 1:55 pmORD  Chicago O'Hare Intl-LTN London Luton
13h 25m1 stop Reykjavik Keflavik Intl
Multiple Airlines Logo
8:00 am - 5:20 pmLTN  London Luton-ORD Chicago O'Hare Intl
15h 20m1 stop Reykjavik Keflavik Intl
$673Multiple Airlines
Fri, Nov 13 - Mon, Nov 16
Scandinavian Airlines Logo
7:15 pm - 8:55 amORD  Chicago O'Hare Intl-LHR London Heathrow
31h 40m2 stops Kastrup Copenhagen Stockholm Arlanda
Scandinavian Airlines Logo
6:40 am - 4:45 pmLHR  London Heathrow-ORD Chicago O'Hare Intl
16h 05m1 stop Kastrup Copenhagen
$673Scandinavian Airlines
Tue, Oct 20 - Wed, Oct 28
Multiple Airlines Logo
6:05 am - 10:00 amORD  Chicago O'Hare Intl-LGW London Gatwick
21h 55m1 stop Orlando
Multiple Airlines Logo
10:10 am - 8:21 amLGW  London Gatwick-ORD Chicago O'Hare Intl
27h 11m1 stop Orlando
$673Multiple Airlines
Mon, Nov 23 - Thu, Nov 26
Scandinavian Airlines Logo
7:15 pm - 8:55 amORD  Chicago O'Hare Intl-LHR London Heathrow
31h 40m2 stops Kastrup Copenhagen Stockholm Arlanda
Scandinavian Airlines Logo
6:40 am - 4:45 pmLHR  London Heathrow-ORD Chicago O'Hare Intl
16h 05m1 stop Kastrup Copenhagen
$673Scandinavian Airlines
Thu, Oct 22 - Thu, Oct 29
Icelandair Logo
7:25 pm - 2:40 pmORD  Chicago O'Hare Intl-LGW London Gatwick
13h 15m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:55 am - 6:20 pmLGW  London Gatwick-ORD Chicago O'Hare Intl
11h 25m1 stop Reykjavik Keflavik Intl
$685Icelandair
Thu, Oct 22 - Thu, Oct 29
Icelandair Logo
7:25 pm - 11:55 amORD  Chicago O'Hare Intl-LHR London Heathrow
10h 30m1 stop Reykjavik Keflavik Intl
Icelandair Logo
12:15 pm - 6:20 pmLHR  London Heathrow-ORD Chicago O'Hare Intl
11h 05m1 stop Reykjavik Keflavik Intl
$686Icelandair
Wed, Sep 23 - Wed, Sep 30
TAP AIR PORTUGAL Logo
6:00 pm - 3:35 pmORD  Chicago O'Hare Intl-LHR London Heathrow
15h 35m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
1:45 pm - 12:40 pmLHR  London Heathrow-ORD Chicago O'Hare Intl
28h 55m1 stop Lisbon Humberto Delgado
$698TAP AIR PORTUGAL
Thu, Oct 1 - Wed, Dec 9
TAP AIR PORTUGAL Logo
6:00 pm - 6:50 pmORD  Chicago O'Hare Intl-LHR London Heathrow
18h 50m1 stop Lisbon Humberto Delgado
TAP AIR PORTUGAL Logo
6:00 am - 3:30 pmLHR  London Heathrow-ORD Chicago O'Hare Intl
15h 30m1 stop Lisbon Humberto Delgado
$702TAP AIR PORTUGAL
Wed, Oct 21 - Wed, Oct 28
British Airways Logo
7:05 pm - 9:05 amORD  Chicago O'Hare Intl-LHR London Heathrow
8h 00mnonstop
British Airways Logo
3:40 pm - 7:45 pmLHR  London Heathrow-ORD Chicago O'Hare Intl
9h 05mnonstop
$711British Airways
Tue, Sep 29 - Mon, Oct 5
British Airways Logo
5:00 pm - 6:50 amORD  Chicago O'Hare Intl-LHR London Heathrow
7h 50mnonstop
British Airways Logo
3:15 pm - 6:15 pmLHR  London Heathrow-ORD Chicago O'Hare Intl
9h 00mnonstop
$759British Airways
Booking Insights

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

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

How much is a round-trip flight from Chicago O'Hare Intl Airport to London?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Chicago O'Hare Intl Airport to London departing in November.

Flight prices are typical for this route right now.

Flights to London from Chicago O'Hare Intl Airport usually cost between $654 and $1,020 in November.
The lowest price found in the past 5 days was $673 on Multiple Airlines (Nov 6-Nov 16).

What is the cheapest Chicago O'Hare Intl Airport to London flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Chicago O'Hare Intl Airport to London costs $840 on the route between Chicago O'Hare Intl Airport (ORD) and London Heathrow Airport (LHR). It is also the most popular route.

What’s the cheapest day of the week to fly from Chicago O'Hare Airport to London?

The average price of all round-trip flights from Chicago O'Hare Intl Airport to London clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to London on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from Chicago O'Hare Airport to London. For your return ticket, we recommend flying on a Thursday and avoiding Saturdays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago O'Hare Intl Airport to London, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago O'Hare Intl Airport to London is January, where tickets cost $641 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,378 and $1,118 respectively.

Can I save money by flying with a layover from Chicago O'Hare Intl Airport to London?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $828 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago O'Hare Intl Airport to London, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Chicago O'Hare Intl Airport to London, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Expert advice

Expert advice for your flight from O'Hare Intl to London

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Duncan Madden

Duncan Madden

Expert on British Airways and LHR

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and ORD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Marisa Garcia

Marisa Garcia

Expert on Iberia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Good to know

Low season

January

Cheapest flight

$306
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Chicago O'Hare Airport to London Heathrow Airport

When to book flights from O'Hare Intl to London

Are your dates flexible? Find out the best times to travel from O'Hare Intl to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from O'Hare Intl to London: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from O'Hare Intl to London 
Verified travelerFlew with British Airways-Mar 2026
Take early morning flights to adjust to weather-related delays.
Verified travelerFlew with British Airways-Jun 2025
Get a wheel chair if you have difficulty walking
JoeFlew with Iberia-Apr 2025
Get there early. Nice airport options while you wait.
Verified travelerFlew with Iberia-May 2025
Get to the airport early so you’re relaxed. Con yourself into believing it’s bedtime and try to sleep so that you can keep going all day when you get there. If you can afford more comfy seats it might be worth it - though I always have the cheap ones so I can’t say for sure. Try very hard not to. sit in the middle. I’m small and the guy next to me played games all night and didn’t care that he continually ( with every move) jabbed me with his arm. This was my first flight with Cheap Flights and it was far less convenient than other times I’ve flown overseas.
DinaFlew with United Airlines-Jan 2025
Anticipate delays, prepare for long walks through Heathrow to baggage claim or for connections.
KariFlew with British Airways-May 2024
Always check to confirm your assistance is in system. No wheelchair waiting for me in London. Had no clue about airport or how to get around. Got lost easy
AaronFlew with American Airlines-Dec 2023
Find a flight where you are allowed to choose your seats before the day of boarding for anything international.

FAQs for booking Chicago O'Hare Airport to London flights

  • Are there onside hotels at LGW airport?

    Yes. LGW has several onsite hotels where you can check-in. Hampton by Hilton hotel is located about a 5min walk from the South Terminal and moments from the airport check-in desks. The South Terminal also finds the Hilton London Gatwick Hotel, Premier Inn opposite the North Terminal's entrance and Sofitel London Gatwick at the North Terminal.

  • What is the best way to get to Buckingham Palace from LCY airport?

    Taxi is the fastest way to get to Buckingham Palace from LCY airport. Taxi takes approximately 23min from the destination, unlike the subway train or bus, which takes 35min and 43min respectively. You can request black taxis, mini cabs, or chauffeurs found at the airport.

  • Where can I eat at the LHR airport?

    LHR airport hosts restaurants, cafes and bars where you can grab a drink, coffee or enjoy delicious dishes. You can try out some British classics at the Fortnum & Mason Bar. If you arrive through the Queen's Terminal, you can enjoy a peculiar trio of crab on toast or chicken tikka masala at The Perfectionist’s Café.

  • Are there lounges at ORD airport?

    Yes. The ORD airport has seventeen lounges where you can relax away from the busy departure areas as you wait for your flight. USO Lounge in Terminal 2 at pre-security is designed for active members of the U.S. military. If you are flying business class, you can access United Polaris Lounge adjacent to gate C18 in Terminal 1.

  • What is the cheapest flight from Chicago O'Hare Intl Airport to London?

    In the last 5 days, the lowest price for a flight from Chicago O'Hare Intl Airport to London was $306 for a one-way ticket and $673 for a round-trip.

  • Do I need a passport to fly between Chicago O'Hare Airport and London?

    Yes, you’ll need a passport to travel to London from Chicago O'Hare Airport.

  • Which airlines offer Wi-Fi service onboard planes from Chicago O'Hare Airport to London?

    British Airways, Iberia, Finnair, and American Airlines offer inflight Wi-Fi service on the Chicago O'Hare Airport to London flight route.

  • Which aircraft models fly most regularly from Chicago O'Hare Airport to London?

    The Boeing 787-9 Dreamliner is the aircraft model that flies most regularly on the Chicago O'Hare Airport to London flight route.

  • Which airline alliances offer flights from Chicago O'Hare Airport to London?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Chicago O'Hare Airport and London, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Chicago O'Hare Airport to London?

    There are nonstop flights from Chicago O'Hare Airport to London on a daily basis.

  • Which is the best airline for flights from Chicago to London, Finnair or Virgin Atlantic?

    The two airlines most popular with KAYAK users for flights from Chicago to London are Finnair and Virgin Atlantic. With an average price for the route of $744 and an overall rating of 7.7, Finnair is the most popular choice. Virgin Atlantic is also a great choice for the route, with an average price of $489 and an overall rating of 7.5.

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

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago O'Hare Airport to London.

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

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

    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 London with an airline and back to Chicago O'Hare Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago O'Hare Airport to London?

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

KAYAK’s top tips for finding a cheap flight from Chicago O'Hare Intl Airport to London

  • Looking for a cheap flight? 25% of our users found flights on this route for $447 or less one-way and $991 or less round-trip.
  • Chicago O-Hare International Airport (ORD) offers disabled facilities to passengers with physical and hidden disabilities. It has adapted toilets, lifts, and ramps and offers escorted wheelchair services to physically disabled passengers. TTY telephones, brain buttons in elevators and visual paging for those with hidden disabilities. There are also parking facilities for the disabled in all the parking slots.
  • ORD airport provides parking services and facilities. There are long-term and short-term parking services, daily parking, economy parking and valet parking. You can consider economy parking services offered in lot F and G located on Bessie Coleman Drive, with a free shuttle to the terminals if you want to park your vehicle for an extended period. Economy parking services are the best since they are offered in long-term covered parking garages.
  • London Heathrow Airport (LHR) offers ideal family services. There are multiple fun and entertainment services for children in the Mr. Adventure Stay & Play areas in Terminals 2, 3, 4 and 5 to keep kids happy and exercised. The play areas have coloring-in and activity sheets. Numerous restaurants are family-friendly as they offer free children's high chairs and menus for kids to eat free.
  • London Gatwick Airport (LGW) provides baby facilities crucial for traveling mothers. After a long flight, you may want to feed your baby or pump breast milk in a private and comfortable space. This airport has unique babycare rooms designated for feeding and changing infants. They are found past the passport control and in the transfer area in arrivals. A baby nursing area is also available in South Terminal.
  • London City Airport (LCY) has enhanced accessibility and offers accessibility services and facilities to passengers with reduced mobility or physical disabilities. It provides electric wheelchairs through the airlines for senior citizens or physically disabled passengers. There is also a special lanyard to wear if you travel with someone who needs additional assistance.

Prefer to fly direct from Chicago O'Hare Airport to London?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Chicago O'Hare Intl to London.
Find which airlines fly direct from Chicago O'Hare Intl Airport to London, which days they fly and book direct flights.

Direct departures

Chicago O'Hare Intl to London

Monday

American Airlines,British Airways,United Airlines

American Airlines,British Airways, +1 more

Tuesday

American Airlines,British Airways,United Airlines

American Airlines,British Airways, +1 more

Wednesday

American Airlines,British Airways,United Airlines

American Airlines,British Airways, +1 more

Thursday

American Airlines,British Airways,United Airlines

American Airlines,British Airways, +1 more

Friday

American Airlines,British Airways,United Airlines

American Airlines,British Airways, +1 more

Saturday

American Airlines,British Airways,United Airlines

American Airlines,British Airways, +1 more

Sunday

American Airlines,British Airways,United Airlines

American Airlines,British Airways, +1 more

See more direct flights

Direct returns

London to Chicago O'Hare Intl

Monday

American Airlines,British Airways,United Airlines

American Airlines,British Airways, +1 more

Tuesday

American Airlines,British Airways,United Airlines

American Airlines,British Airways, +1 more

Wednesday

American Airlines,British Airways,United Airlines

American Airlines,British Airways, +1 more

Thursday

American Airlines,British Airways,United Airlines

American Airlines,British Airways, +1 more

Friday

American Airlines,British Airways,United Airlines

American Airlines,British Airways, +1 more

Saturday

American Airlines,British Airways,United Airlines

American Airlines,British Airways, +1 more

Sunday

American Airlines,British Airways,United Airlines

American Airlines,British Airways, +1 more

See more direct flights

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

Information on your arrival and departure airports