$446 Cheap American Airlines flights Kansas City (MCI) to London (LHR)

View $446 flight on Mon, Dec 29, 2025Opens in a new window

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$446 Cheap American Airlines flights Kansas City (MCI) to London (LHR)

Prices were available within the past 7 days and start at $446 for one-way flights and $629 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Oct 6 - Tue, Oct 14
MCI
Kansas City
LHR
London
$629 Roundtrip, just found
$629
Roundtrip
just found
Select American Airlines flight, departing Mon, Oct 6 from Kansas City to London, returning Tue, Oct 14, priced at $629 just found
American Airlines
Wed, Nov 5 - Thu, Nov 13
MCI
Kansas City
LHR
London
$642 Roundtrip, found 1 hour ago
$642
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Wed, Nov 5 from Kansas City to London, returning Thu, Nov 13, priced at $642 found 1 hour ago
Flights from Kansas City (MCI) to London (LHR)
Origin airport
Kansas City Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, KLM, Lufthansa, Scandinavian Airlines, United, Virgin Atlantic
Popular airline
British Airways
Distance
4327 mi

Frequently asked questions

How much is an American Airlines flight from Kansas City Intl. Airport (MCI) to Heathrow Airport (LHR)?
Landing cheap one-way American Airlines flights from MCI to LHR from $446 on Expedia is a cinch — just filter by "Price (lowest to highest)." Or check out our budget-friendly return fares from $629 for your next exciting getaway.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from MCI to LHR with American Airlines?
American Airlines flights to London are often more affordable in the off-peak months of January and February. Whether you're searching for a return or one-way ticket, you could score a better deal then.
What is the cheapest time to book flights from Kansas City Intl. Airport (MCI) to Heathrow Airport (LHR) with American Airlines?
To discover cheap flights from MCI to LHR with American Airlines, start your search about one month before your planned departure. You can save 17% when you book your international tickets 18 to 29 days ahead instead of booking four to five months in advance. Another helpful tip? Booking on Sunday offers average savings of 17% compared to Friday (the most expensive day).**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does American Airlines fly nonstop from Kansas City Intl. Airport (MCI) to Heathrow Airport (LHR)?
To see if there's a direct trip from MCI to LHR with American Airlines or any other carriers, use our "Nonstop" filter when browsing for flights.
What is the earliest American Airlines flight from MCI to LHR?
Search American Airlines's earliest flights from MCI to LHR by using our "Morning" and "Early Morning" filters. Not only will you arrive sooner, early departures are also 20% less likely to be canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does American Airlines fly into in London?
American Airlines flights from Kansas City Intl. Airport (MCI) to London land at Heathrow Airport (LHR). This is the main entry point to this city.
Can I change or cancel my American Airlines flight from Kansas City Intl. Airport (MCI) to Heathrow Airport (LHR)?
It's usually possible to modify or cancel your flight, although there may be additional charges if your booking was made over 24 hours ago. Need to keep your options open? Make use of Expedia's "Changes included" or "No cancel fee" filter to find flights that won't penalize you if you need to alter your plans. To make changes, visit "Trips," select your flight and click on "Manage Booking" for more details.

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