International route
Cheap flights from London to Chicago
London Heathrow Airport (LHR) to O'Hare International Airport (ORD). 3,942 miles, 8h 20m nonstop.
LHR to ORD at a glance
Computed from airline schedules and the fares we track for this route. Refreshed several times a day.
- Distance
- 3,942 milesgreat-circle
- Typical flight time
- 8h 20mnonstop, gate to gate
- Nonstop airlines
- AAUAB6BA5 airlinesAmerican, United, JetBlue
- Nonstop flights per day
- 9all airlines combined
- Cheapest month
- January 2027over the next six months
- Best day to fly
- Tuesday17% less than Friday
- Time difference
- 6h behindChicago vs London
London to Chicago
Round trips from $345
Per traveler, taxes and fees included. Lowest fare we found departs Tue, Jan 12.
Cheapest month: January 2027
See fares on these datesLock any fare free — pay only when you accept your last-minute deal
Or ask an agent on WhatsAppLondon to Chicago fares by month
Lowest round-trip economy fare per traveler in each of the next six months, taxes and fees included. Select a month to search that date.
Airlines flying London to Chicago
5 airlines fly nonstop with 9 departures a day combined, plus 14 more with one stop.
- AAAmerican AirlinesoneworldNonstop · 2 flights a day · first checked bag from $40
- BABritish AirwaysoneworldNonstop · 2 flights a day · first checked bag from $75
- UAUnited AirlinesStar AllianceNonstop · 2 flights a day · first checked bag from $40
- VSVirgin AtlanticSkyTeamNonstop · 2 flights a day · first checked bag from $75
- B6JetBlueNonstop · 1 flight a day · first checked bag from $40
- EIAer LingusConnecting via SNN · first checked bag from $70
- ACAir CanadaStar AllianceConnecting via YUL, YYC · first checked bag from $35
- AFAir FranceSkyTeamConnecting via CDG, ORY · first checked bag from $75
- OSAustrian AirlinesStar AllianceConnecting via VIE · first checked bag from $75
- DLDelta Air LinesSkyTeamConnecting via ATL, MSP, DTW, SLC, JFK, BOS, LGA · first checked bag from $35
- AYFinnaironeworldConnecting via HEL · first checked bag from $70
- FIIcelandairConnecting via KEF · first checked bag from $70
- AZITA AirwaysConnecting via FCO · first checked bag from $70
- LHLufthansaStar AllianceConnecting via FRA, MUC · first checked bag from $75
- NONorse Atlantic AirwaysLow-costConnecting via OSL · first checked bag from $80
- SKSAS Scandinavian AirlinesSkyTeamConnecting via ARN, OSL · first checked bag from $70
- LXSWISSStar AllianceConnecting via ZRH, GVA · first checked bag from $75
- TPTAP Air PortugalStar AllianceConnecting via OPO · first checked bag from $70
- WSWestJetConnecting via YYZ · first checked bag from $35
Connecting options
Hubs where one airline can carry you on both legs, most choices first.
- Oslo (OSL)SKNO2 airlines
- Atlanta (ATL)DL1 airline
- Minneapolis (MSP)DL1 airline
- Detroit (DTW)DL1 airline
- Salt Lake City (SLC)DL1 airline
Which airport should I use?
London has 3 airports and Chicago has 2 airports. Fares can differ by $50 to $150 round trip between them, so check the alternatives before you book.
Other departure airports near London
Other arrival airports near Chicago
Tips for this route
- American, United, JetBlue and British all fly LHR to ORD nonstop, so compare the total with bags before picking the lowest base fare: the difference between a basic and a standard economy ticket is often less than one checked bag each way.
- January 2027 is the cheapest month to fly over the next six months, with round trips from $345; September 2026 is the most expensive at $440 and up, a difference of $95 per traveler.
- Departing on a Tuesday averages 17% less than a Friday on this route. If your dates are flexible, shift the outbound by a day or two and check the calendar view before you book.
- Book 6 to 12 weeks ahead; fares climb in the last three weeks and around holidays.
- Chicago is 6 hours behind London. A morning departure lands in Chicago with most of the day left; an evening flight arrives close to local dinner time.
Destination guide
Chicago: Big-shoulders architecture and a lakefront for everyone
Chicago is America's most connected inland hub — O'Hare and Midway between them have nonstops from nearly every US city — so fares are consistently reasonable. The lakefront, the architecture and the food make it a strong long weekend.
Best time to visit: June–September is warm, with festivals almost every weekend (and the highest hotel rates). May and October are cool and cheaper; winter is cold but hotels are a bargain.
Flying the other way? Chicago to LondonFares, airlines and tips for ORD to LHR.Ready to compare live fares?
See every airline on LHR–ORD side by side with bags and seat rules spelled out.
Search London to ChicagoLondon to Chicago: common questions
How long is the flight from London to Chicago?
A nonstop flight from London (LHR) to Chicago (ORD) takes about 8h 20m gate to gate, covering 3,942 miles. Connecting itineraries add the layover, typically 2 to 5 hours more in total.
Which airlines fly nonstop from LHR to ORD?
American Airlines, United Airlines, JetBlue, British Airways and Virgin Atlantic operate nonstop flights from London (LHR) to Chicago (ORD), with 9 nonstop departures a day between them. One-stop options connect through OSL, ATL and MSP.
What is the cheapest month to fly from London to Chicago?
Over the next six months, January 2027 has the lowest round-trip fares from London (LHR) to Chicago (ORD), starting at $345 per traveler including taxes and fees. Within any month, Tuesday departures average the lowest prices.
How far in advance should I book London to Chicago flights?
Book 6 to 12 weeks ahead; fares climb in the last three weeks and around holidays. Air1 Tickets includes free cancellation within 24 hours of booking on every fare, so you can lock in a good price and keep looking.
What is the time difference between London and Chicago?
Chicago is 6 hours behind London. LHR is on Europe/London time and ORD on America/Chicago time. Departure and arrival times in search results are always shown in local time at each airport.
Related routes
Other popular city pairs from the same departure city and to the same destination, with the lowest round-trip fares we found.