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Finnair flights from London Heathrow Airport to Chicago (LHR - CHI)
LHR — CHI
11 Nov — 18 Nov1
Find Finnair flight deals from Heathrow to Chicago
Enter your travel dates to find the best prices.
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Cheapest Finnair flights from Heathrow to ChicagoExplore the most affordable Finnair flight options available from Heathrow to Chicago. Find the lowest fares with prices last updated on 12 October 2026.
Explore the most affordable Finnair flight options available from Heathrow to Chicago. Find the lowest fares with prices last updated on 12 October 2026.
Wed 4/1116:30 -
Nonstop9h 00m
Wed 11/1120:30 -
Nonstop7h 55m
Deal found 7/10£621
Mon 9/1112:35 -
Nonstop8h 55m
Mon 23/1117:10 -
Nonstop7h 45m
Deal found 9/10£624
Thu 26/1115:40 -
Nonstop9h 05m
Thu 3/1216:57 -
1 stop10h 18m
Deal found 10/10£626
Best Finnair flights from Heathrow to ChicagoDiscover carefully curated Finnair flight deals from Heathrow to Chicago that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 October 2026.
Discover carefully curated Finnair flight deals from Heathrow to Chicago that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 12 October 2026.
Mon 1/212:35 -
Nonstop8h 55m
Mon 15/221:50 -
Nonstop7h 45m
Deal found 8/10£630
Sun 22/1116:30 -
Nonstop8h 55m
Sun 29/1120:00 -
Nonstop8h 00m
Deal found 8/10£686
Tue 23/218:10 -
2 stops34h 21m
Wed 10/316:30 -
1 stop23h 40m
Deal found 7/10£690
Direct Finnair flights from Heathrow to ChicagoExplore direct Finnair flight options from Heathrow to Chicago based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 October 2026.
Explore direct Finnair flight options from Heathrow to Chicago based on user searches, and compare prices and availability for your desired travel dates. Data last updated 12 October 2026.
Wed 4/1116:30 -
Nonstop9h 00m
Wed 11/1120:30 -
Nonstop7h 55m
Deal found 7/10£621
Mon 9/1112:35 -
Nonstop8h 55m
Mon 23/1117:10 -
Nonstop7h 45m
Deal found 9/10£624
Sat 7/1112:35 -
Nonstop8h 55m
Mon 16/1120:30 -
Nonstop7h 55m
Deal found 10/10£626
Last-minute Finnair flights from Heathrow to ChicagoDiscover last-minute Finnair flight deals from Heathrow to Chicago. Data last updated 12 October 2026 and is based on user searches.
Discover last-minute Finnair flight deals from Heathrow to Chicago. Data last updated 12 October 2026 and is based on user searches.
Wed 4/1116:30 -
Nonstop9h 00m
Wed 11/1120:30 -
Nonstop7h 55m
Deal found 7/10£621
Mon 9/1112:35 -
Nonstop8h 55m
Mon 23/1117:10 -
Nonstop7h 45m
Deal found 9/10£624
Thu 26/1115:40 -
Nonstop9h 05m
Thu 3/1216:57 -
1 stop10h 18m
Deal found 10/10£626
One-way Finnair flights to ChicagoSearch for one-way Finnair flight options to Chicago. Find affordable one-way fares based on user searches. Data last updated 12 October 2026.
Search for one-way Finnair flight options to Chicago. Find affordable one-way fares based on user searches. Data last updated 12 October 2026.
Sat 7/1112:35 -
Nonstop8h 55m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 8/10£600
Tue 10/1112:35 -
Nonstop8h 55m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 10/10£646
Mon 29/316:05 -
2 stops55h 45m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 7/10£650
Finnair flights from Heathrow to Chicago in 2026
Find detailed information about Finnair flights from Heathrow to Chicago. Explore the options provided by Finnair to plan your journey from Heathrow to Chicago. Data last updated 12 October 2026.
LHR-CHI
LHR-ORD
Which month is the cheapest to fly Economy class from London Heathrow Airport to Chicago?
For Economy class flights, the cheapest month to fly this route is February. The most expensive months are July and November.
Weekly Finnair flight availability from London Heathrow Airport to Chicago
The most Finnair flights from LHR to CHI are scheduled on a Monday (5 on average). You will have fewer Finnair flight options on Wednesday, which is when the least amount of flights are scheduled (4 on average).
Rainfall in Chicago by month
Plan your trip to Chicago by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Chicago ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago when rainfall is around 43.0 mm.
Temperature in Chicago by month
Plan your trip to Chicago by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Chicago, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).
Best time to book a flight from Heathrow to Chicago
Have a flexible travel schedule? Discover the best time to fly to Chicago from Heathrow with our price prediction graph.
LHR-CHI
LHR-ORD
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Airlines serving Chicago
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Fly from Heathrow to Chicago on another airline
Consider alternative airlines that service the Chicago area. Flight routes are based on user searches made on Cheapflights and were last updated on 12 October 2026.
Other Finnair flights from Heathrow
Browse through other Finnair flights departing from Heathrow. Flight routes are based on user searches made on Cheapflights and were last updated on 12 October 2026.
Complete your trip
Complete your trip to Chicago by adding a car hire and/or hotel booking to your travel itinerary.
Other airlines servicing Heathrow and Chicago
Choose from other airlines serving Heathrow and Chicago.
Other popular destinations in North America
If Chicago is not for you, choose from these other destinations located in North America. Flight routes are based on user searches made on Cheapflights and were last updated on 12 October 2026.
Popular flights with Finnair
Browse through some of the most popular routes that Finnair offers at this time. Flights are based on user searches made on Cheapflights and were last updated on 12 October 2026.
See what others are saying about Finnair
Read reviews and see what other travellers are saying about their experiences with Finnair. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing Finnair for your next flight. Reviews last updated 12 October 2026.
Overview
Reviews
Finnair
1,422 reviews
Overview
Entertainment
6.9
Food
6.7
Comfort
7.4
Boarding
7.6
Crew
8.2
Recent reviews
6.0
|Aug 2026The flight from Helsinki to Toronto was very cramped. No leg space and no room to even walk. Very bad experience
8.0
|Jul 2026Very limited food provided. Limited drinks, lights out for 10 of 12.30 flights. Very few staff.
2.0
|Jun 2026Lost our luggage and took two days to get it back. Ruined the trip.
10.0
|Jun 2026Our checked baggage was not transferred correctly so now we are stuck in Budapest with out essential luggage. We are not able to get much help from FinnAir because their service from Seattle is on periodic.
10.0
|May 2026Positive
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