£228 Cheap Flights from Chicago (ORD) to London (LHR)

You can find one-way and return flights from Chicago, IL (ORD) to London (LHR) with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when ORD to LHR ticket fares go up or down.

The cheapest months to fly from Chicago, IL (ORD) to London (LHR) are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.

There are 3 airlines offering direct flights from Chicago, IL (ORD-O'Hare Intl.) to London (LHR-Heathrow). Here are the carriers:
* American Airlines operates 23 direct flights from Chicago, IL (ORD-O'Hare Intl.) to London (LHR-Heathrow) every week.
* British Airways operates 22 direct flights from Chicago, IL (ORD-O'Hare Intl.) to London (LHR-Heathrow) every week.
* United operates 21 direct flights from Chicago, IL (ORD-O'Hare Intl.) to London (LHR-Heathrow) every week.

To find a cheap flight from Chicago, IL (ORD-O'Hare Intl.) to London (LHR-Heathrow), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

The best airline to fly with from Chicago, IL (ORD-O'Hare Intl.) to London (LHR-Heathrow) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, American Airlines typically offers the lowest fares. American Airlines offers the most daily flights from Chicago, IL (ORD-O'Hare Intl.) to London (LHR-Heathrow), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.

The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.

You'll find approximately 9 nonstop flights per day from Chicago O'Hare International (ORD) to London Heathrow (LHR). For even more choices, look at flights that include layovers, as there are around 233 connecting flights per day. Some common connection points include John F. Kennedy International (JFK), Logan International (BOS), and Pearson International (YYZ).

The earliest flight from Chicago, IL (ORD-O'Hare Intl.) to London (LHR-Heathrow) typically departs around 12:10 AM local time. This service is operated by American Airlines and British Airways. This is a seasonal service, active only in December. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

You'll typically find the most flights from Chicago O'Hare International Airport (ORD) to London Heathrow (LHR) on a Wednesday, with around 140 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United, American Airlines, and Delta. Looking at the week, Wednesday offers notably more flight options compared to other days, ensuring you have a good selection to choose from.

The most popular departure times for flights from Chicago, IL (ORD-O'Hare Intl.) to London (LHR-Heathrow) are in the afternoon, from 3pm to 6pm. Many major carriers, including United, American Airlines and Aer Lingus, offer flights during this window. Many travellers prefer this time as it allows for a full day of activities before heading to the airport, and you'll arrive in London in the morning, ready to start your day.

A direct flight from Chicago, IL (ORD-O'Hare Intl.) to London (LHR-Heathrow) typically takes around 7 hours 48 minutes, covering a distance of approximately 6,346 kilometers. If you opt for a flight with one stop, your journey will usually be longer, taking about 11 hours 48 minutes. Flights with two or more stops generally take around 15 hours. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your trip.

Yes, you can fly business class or first class between ORD and LHR. Airlines that offer business class service on this route include:

* Swiss International Air Lines
* TAP Portugal
* Avianca
* Lufthansa
* Air France
* Iberia
* SAS
* Icelandair
* Turkish Airlines
* ITA Airways
* Aer Lingus
* Republic Airlines
* KLM
* LOT-Polish Airlines
* British Airways
* Air Canada
* Alaska Airlines
* United
* Austrian Airlines
* Delta
* Finnair
* American Airlines
* Ethiopian Airlines
* American Eagle

First class cabins are available on Swiss International Air Lines, Lufthansa, British Airways, Alaska Airlines, and American Airlines.

A direct, return business class ticket from Chicago, IL (ORD-O'Hare Intl.) to London (LHR-Heathrow) typically costs between £4,750 - £6,761. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Chicago, IL (ORD-O'Hare Intl.) to London (LHR-Heathrow) if you opt for a connecting flight.

It's easy to earn miles on a Chicago, IL (ORD-O'Hare Intl.) to London (LHR-Heathrow) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

If you're planning to travel to London from O'Hare Intl. (ORD), you can fly directly into Heathrow (LHR). Some flights may connect through major hubs like Logan Intl. (BOS), Liberty Intl. (EWR), or Kastrup (CPH) before reaching London. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from Chicago, IL (ORD-O'Hare Intl.) to London (LHR-Heathrow) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Securing a Chicago, IL (ORD-O'Hare Intl.) to London (LHR-Heathrow) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

If you booked your Chicago, IL (ORD-O'Hare Intl.) to London (LHR-Heathrow) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.