Round trip from
$660
15 Jan – 18 Jan · SAS Scandinavian · 1 stop
found 4 days ago
Direct flights from
$907
21 Dec – 2 Jan · United Airlines
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6353 km
Distance
-
8 h 10 min
Shortest flight
-
14%
Direct flights
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14
Airlines
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$254
One way from
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$660
Round trip from
The route at a glance
The flight from Chicago to London covers about 6353 km; the shortest flight takes 8 h 10 min, a typical one 10 h 15 min.
14% of the cheapest tickets are direct; SAS Scandinavian carries 29% of them.
Most cheap flights leave from O'Hare International Airport (25 km from the centre of Chicago).
Most land at London Heathrow Airport (23 km from the centre of London).
A one-way ticket starts at $254, a round trip at $660.
Cheapest price by month
| Month | Round trip from |
|---|---|
| November 2026 | $728 |
| December 2026 | $735 |
| January 2027 | $660 |
| April 2027 | $707 |
| September 2027 | $870 |
Cheapest day to fly
Looking two months ahead, 25 November is the cheapest date to leave, at $254.
Wednesday is the cheapest day of the week to fly.
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| 4 $279 |
5 $279 |
6 $394 |
7 $349 |
8 $349 |
||
| 9 $349 |
10 $304 |
11 $300 |
12 $300 |
13 $300 |
14 $297 |
15 $301 |
| 16 $301 |
17 $305 |
18 $317 |
19 $317 |
20 $317 |
21 $317 |
22 $317 |
| 23 $317 |
24 $330 |
25 $254 |
Cheaper More expensive
- $254 — Wednesday, Nov. 25, 2026
- $279 — Wednesday, Nov. 4, 2026
- $279 — Thursday, Nov. 5, 2026
- $297 — Saturday, Nov. 14, 2026
- $300 — Wednesday, Nov. 11, 2026
- $300 — Thursday, Nov. 12, 2026
- $300 — Friday, Nov. 13, 2026
- $301 — Sunday, Nov. 15, 2026
- $301 — Monday, Nov. 16, 2026
- $304 — Tuesday, Nov. 10, 2026
- $305 — Tuesday, Nov. 17, 2026
- $317 — Wednesday, Nov. 18, 2026
- $317 — Thursday, Nov. 19, 2026
- $317 — Friday, Nov. 20, 2026
- $317 — Saturday, Nov. 21, 2026
- $317 — Sunday, Nov. 22, 2026
- $317 — Monday, Nov. 23, 2026
- $330 — Tuesday, Nov. 24, 2026
- $349 — Saturday, Nov. 7, 2026
- $349 — Sunday, Nov. 8, 2026
- $349 — Monday, Nov. 9, 2026
- $394 — Friday, Nov. 6, 2026
Price trend, last 30 days
Over the last 30 days the fare moved between $292 and $707, averaging $550.
Today's price is 20% above that average; waiting may pay off.
- 6 October — $565
- 11 October — $292
- 16 October — $528
- 21 October — $545
- 26 October — $707
- 31 October — $660
Trip length and timing
Travellers who pay least stay roughly 10 nights — 3 nights on the very cheapest ticket — and book about 49 days before departure.
Airlines on this route
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SAS Scandinavian
29% of the fares found
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Icelandair
21% of the fares found
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Air Canada
14% of the fares found
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Frontier Airlines
14% of the fares found
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United Airlines
14% of the fares found
direct
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jetBlue
7% of the fares found
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Aer Lingus
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Air Serbia
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American Airlines
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British Airways
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Finnair
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Iberia
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Porter Airlines Canada
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SWISS
Airports used
Chicago
Trip essentials
Car rental in London
Pick up a car at the airport.
Mobile data in London
An eSIM with local data, set up before you land.
by Airalo
Airport transfer in London
A fixed-price ride from the airport, booked ahead.
by Kiwitaxi
Flight delayed or cancelled?
You may be owed up to €600 for a disrupted EU flight. Check in two minutes.
by AirHelp
Flight deals from Chicago in Telegram
A daily digest of the cheapest fares from your city and instant alerts when a price drops. Free, no account needed.
Questions and answers
- What is the cheapest price for flights from Chicago to London?
- The cheapest round-trip ticket found recently costs $660.
- Which month is the cheapest to fly from Chicago to London?
- January 2027 is currently the cheapest month, with tickets from $660.
- Are there direct flights from Chicago to London?
- Yes. Direct flights were found from $907.
- Which airlines fly from Chicago to London?
- Airlines found on this route: American Airlines, Air Canada, Finnair, jetBlue, British Airways, Aer Lingus, Frontier Airlines, Icelandair, Iberia, Air Serbia, SWISS, Porter Airlines Canada.
- How far is London from Chicago?
- The distance is about 6353 km. A direct flight takes about 8 h 10 min.
- How long is the flight from Chicago to London?
- The shortest flight takes 8 h 10 min; most take about 10 h 15 min.
- Which airports do flights from Chicago to London use?
- Most depart from O'Hare International Airport and arrive at London Heathrow Airport.
- What is the cheapest day of the week to fly from Chicago to London?
- In the next two months, Wednesday departures are the cheapest; the single cheapest day is 25 November at $254.