SEARCH ONE AND DONE. - Compare hundreds of travel sites at once.
Choose where to book.
Find deals from over 400 airlines worldwide.

Cheap Flights from Chicago to London (CHI - LON)

DepartReturn
1 adult
Note: some airlines charge for infants in laps.
The price shown for each flight will be the average for all passengers including any infants.
Choose Sites to Compare vs. KAYAK

Best fares from CHI to LON (Found by others)

Sun Mon Tue Wed Thu Fri Sat
      1 $868 2 $895 3 $870 4 $864
5 $868 6 $864 7 $956 8 $852 9 $907 10 $870 11 $870
12 $859 13 $899 14 $856 15 $856 16 $881 17 $881 18 $882
19 $900 20 $907 21 $888 22 $881 23 $857 24 $879 25 $877
26 $857 27 $857 28 $856 29 $867 30 $884 31 $885  
KAYAK searches hundreds of sites to find the best rate for your next flight from Chicago to London. Get the best flight deal for your London trip!
Here's how it works. Search KAYAK for a flight ticket from Chicago to London. Sort, filter and compare results on one web page. Then book your plane ticket direct on the airline or travel agent site of your choice!
Direct flights CHI to LON on Delta
Flight # Depart ORD Arrive LHR Sun Mon Tue Wed Thu Fri Sat Valid Between
4389 6:30 pm 8:30 am Sep 27 - Oct 18
4389 6:45 pm 8:45 am Oct 9 - Oct 24
4389 6:45 pm 8:45 am Sep 23 - Oct 7