You know where to go
Select an airport in the search form
You don't know where to go
See where you can go on your budget
LHR
Find cheap flights from Illinois to London Heathrow Airport
Round-trip
Economy
Search hundreds of travel sites at once for deals on flights to London Heathrow Airport
Good to know
Low season |
May | Best time to beat the crowds with an average 12% drop in price. |
|---|---|---|
High season |
June | Most popular time to fly with an average 18% increase in price. |
Average price of a round-trip |
$1123 | (avg. price over the last 2 weeks) |
Good deal for a round-trip |
$480 | or less |
FAQs for booking Illinois to London Heathrow Airport flights
Which airlines have a flexible cancellation policy for flights from Illinois to London Heathrow due to COVID-19?
How does KAYAK find such low prices on flights from Illinois to London Heathrow Airport?
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to London Heathrow Airport?
What is the Hacker Fare option on flights from Illinois to London Heathrow Airport?
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to London Heathrow Airport?
Top 5 airlines serving Illinois to London Heathrow
Scores according to KAYAK customer reviews
8.1
Virgin Atlantic
Overall score based on 1,566 reviews
8.3
Boarding
7.8
Comfort
8.6
Crew
8.0
Entertainment
7.8
Food
Book cheap flights from Illinois to London Heathrow Airport
Recent round-trip flight deals
Search by stops
Search by airline
Search by price
Recent one-way flight deals
Search by stops
Search by airline
Search by price
Flights to London Heathrow Airport
Browse origins:
Browse destinations:
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.
We attempt to get accurate prices, however, prices are not guaranteed.
We attempt to get accurate prices, however, prices are not guaranteed.
Here's why:
We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.
We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.
Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.
If you have more questions or if you have a bad price to report to us,
please send us an
email
and someone from our team will get back to you promptly.
-
1