Cheap Flights From Heathrow (LHR) To O'Hare Intl. (ORD)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Find The Best Dates To Fly

Cheapest Flights from London (LHR) to Chicago (ORD)

The cheapest flights to O'Hare Intl. found within the past 7 days were CA $719 round trip and CA $567 one way. Prices and availability subject to change. Additional terms may apply.

Thu, Feb 5 - Sun, Feb 8
LHR
London
ORD
Chicago
CA $719 Roundtrip, found 1 day ago
CA $719
Roundtrip
found 1 day ago
Select Icelandair flight, departing Thu, Feb 5 from London to Chicago, returning Sun, Feb 8, priced at CA $719 found 1 day ago
Thu, Feb 5 - Sun, Feb 8
LHR
London
ORD
Chicago
CA $721 Roundtrip, found 1 day ago
CA $721
Roundtrip
found 1 day ago
Select Icelandair flight, departing Thu, Feb 5 from London to Chicago, returning Sun, Feb 8, priced at CA $721 found 1 day ago
Thu, Feb 5 - Sun, Feb 8
LHR
London
ORD
Chicago
CA $742 Roundtrip, found 1 day ago
CA $742
Roundtrip
found 1 day ago
Select TAP Portugal flight, departing Thu, Feb 5 from London to Chicago, returning Sun, Feb 8, priced at CA $742 found 1 day ago
Thu, Feb 5 - Sun, Feb 8
LHR
London
ORD
Chicago
CA $745 Roundtrip, found 1 day ago
CA $745
Roundtrip
found 1 day ago
Select Swiss International Air Lines flight, departing Thu, Feb 5 from London to Chicago, returning Sun, Feb 8, priced at CA $745 found 1 day ago
Thu, Feb 5 - Sun, Feb 8
LHR
London
ORD
Chicago
CA $754 Roundtrip, found 1 day ago
CA $754
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Thu, Feb 5 from London to Chicago, returning Sun, Feb 8, priced at CA $754 found 1 day ago
Thu, Feb 5 - Sun, Feb 8
LHR
London
ORD
Chicago
CA $755 Roundtrip, found 1 day ago
CA $755
Roundtrip
found 1 day ago
Select Brussels Airlines flight, departing Thu, Feb 5 from London to Chicago, returning Sun, Feb 8, priced at CA $755 found 1 day ago
Thu, Oct 8 - Sun, Oct 11
LHR
London
ORD
Chicago
CA $770 Roundtrip, found 6 days ago
CA $770
Roundtrip
found 6 days ago
Select Swiss International Air Lines flight, departing Thu, Oct 8 from London to Chicago, returning Sun, Oct 11, priced at CA $770 found 6 days ago
Fri, May 1 - Wed, May 6
LHR
London
ORD
Chicago
CA $771 Roundtrip, found 4 days ago
CA $771
Roundtrip
found 4 days ago
Select British Airways flight, departing Fri, May 1 from London to Chicago, returning Wed, May 6, priced at CA $771 found 4 days ago
Thu, Oct 8 - Sun, Oct 11
LHR
London
ORD
Chicago
CA $774 Roundtrip, found 6 days ago
CA $774
Roundtrip
found 6 days ago
Select Austrian Airlines flight, departing Thu, Oct 8 from London to Chicago, returning Sun, Oct 11, priced at CA $774 found 6 days ago
Thu, Feb 5 - Sun, Feb 8
LHR
London
ORD
Chicago
CA $797 Roundtrip, found 1 day ago
CA $797
Roundtrip
found 1 day ago
Select Brussels Airlines flight, departing Thu, Feb 5 from London to Chicago, returning Sun, Feb 8, priced at CA $797 found 1 day ago

Frequently asked questions

Are there direct flights from London Heathrow to O'Hare Airport?
British Airways and American Airlines are a couple of the airlines that offer direct flights from LHR to ORD. If you want to get to where you're headed as quickly as possible, these are the airlines for you.
What airlines fly from Heathrow Airport (LHR) to O'Hare Intl. Airport (ORD)?
There are several airlines with direct flights from Heathrow Airport to ORD. British Airways (BA) is one of the most reputable, and operates at least 60 flights every month. An alternative is American Airlines (AA), which has 30 flights every month. The more airlines you look into, the more likely you are to walk away with an amazing deal.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

Popular Flight Routes from London (LHR)

Travelers at LHR love to visit these top cities. Roam to the top destinations from London (LHR) today with the cheap prices from Travelocity!

Popular Flight Routes from Chicago (ORD)

Travelers at ORD love to visit these top cities. Roam to the top destinations from Chicago(ORD) today with the cheap prices from Travelocity!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.