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Heathrow

$308+ Cheap flights from Kansas City (MCI) to Heathrow (LHR)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — LHR
Aug 18 — Aug 251
Mon 8/18
Mon 8/25
1 adult, Economy
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Cheapflights Tip: The best prices from Kansas City to London Heathrow are usually found in October or February, booked 15 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Kansas City to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Kansas City (MCI) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 13, 2025.

Round-trip from

$663
(United Airlines)

One-way from

$308
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$854
From Kansas City to London Heathrow
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One-way flight from Kansas City to London Heathrow
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Highest demand for flights based on searches. 20% potential increase in price ($236 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Kansas City to Heathrow

Cheapest flights from Kansas City to Heathrow
Explore the most affordable flight options available from Kansas City to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 13, 2025.

This oojo deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/201:33 pmMCI - LHR
2 stops19h 52mBritish Airways
Tue 9/97:25 pmLHR - MCI
2 stops33h 42mBritish Airways
Deal found 8/13$662
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/55:47 pmMCI - LHR
1 stop31h 08mUnited Airlines
Fri 9/192:05 pmLHR - MCI
2 stops26h 32mUnited Airlines
Deal found 8/11$663
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2711:33 amMCI - LHR
1 stop18h 12mUnited Airlines
Sat 9/67:25 amLHR - MCI
2 stops20h 17mUnited Airlines
Deal found 8/11$664
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/25:45 pmMCI - LHR
2 stops14h 05mDelta
Fri 9/198:40 amLHR - MCI
2 stops15h 37mDelta
Deal found 8/13$665
This Cheapflightsfares deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/56:26 pmMCI - LHR
1 stop12h 19mBritish Airways
Fri 9/199:15 amLHR - MCI
1 stop13h 09mBritish Airways
Deal found 8/12$666
This oojo deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/22:57 pmMCI - LHR
1 stop15h 48mBritish Airways
Tue 10/76:10 amLHR - MCI
2 stops20h 42mBritish Airways
Deal found 8/12$667
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/79:05 amMCI - LHR
1 stop21h 15mUnited Airlines
Sat 10/46:50 amLHR - MCI
2 stops15h 06mUnited Airlines
Deal found 8/11$668
This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/265:18 pmMCI - LHR
1 stop13h 02mUnited Airlines
Tue 9/306:50 amLHR - MCI
2 stops15h 06mUnited Airlines
Deal found 8/12$669
This Air Canada deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/76:00 amMCI - LHR
2 stops18h 30mAir Canada
Fri 11/141:00 pmLHR - MCI
2 stops31h 21mAir Canada
Deal found 8/12$670
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/22:00 pmMCI - LHR
1 stop12h 55mDelta
Tue 10/76:15 amLHR - MCI
2 stops16h 51mDelta
Deal found 8/10$671
This Delta deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/14:11 pmMCI - LHR
1 stop15h 19mDelta
Sun 9/76:30 amLHR - MCI
2 stops14h 41mDelta
Deal found 8/11$672
This Ovago deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/13:00 pmMCI - LHR
1 stop12h 00mBritish Airways
Sun 9/78:20 amLHR - MCI
1 stop15h 05mBritish Airways
Deal found 8/11$674

Cheapflights Fare Finder

 
Customize your flight search to find flights from Kansas City to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 13, 2025.
Use the filters below to find and compare flights from Kansas City to London Heathrow Airport that are best for you.

Fly from

Kansas City

Fly to

Heathrow

Route

Depart

Return

Price

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Wed 8/20

1:33 pm-3:25 pm

2 stops19h 52m

London Heathrow

Tue 9/9

7:25 pm-11:07 pm

2 stops33h 42m

$662

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Fri 9/5

5:47 pm-6:55 am

1 stop31h 08m

London Heathrow

Fri 9/19

2:05 pm-10:37 am

2 stops26h 32m

$663

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Fri 9/12

6:29 pm-6:35 am

2 stops54h 06m

London Heathrow

Tue 9/30

12:05 pm-11:30 pm

2 stops17h 25m

$663

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Thu 10/2

7:30 am-9:35 am

2 stops20h 05m

London Heathrow

Tue 10/7

5:40 pm-5:26 pm

2 stops29h 46m

$663

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Wed 8/27

11:33 am-11:45 am

1 stop18h 12m

London Heathrow

Sat 9/6

7:25 am-9:42 pm

2 stops20h 17m

$664

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Tue 9/2

5:45 pm-1:50 pm

2 stops14h 05m

London Heathrow

Fri 9/19

8:40 am-6:17 pm

2 stops15h 37m

$665

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Tue 10/7

1:35 pm-6:40 am

1 stop11h 05m

London Heathrow

Mon 10/13

7:45 pm-4:48 pm

2 stops27h 03m

$665

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Sun 9/7

7:56 pm-2:25 pm

1 stop12h 29m

London Heathrow

Sat 9/20

8:20 am-5:25 pm

1 stop15h 05m

$665

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Fri 9/5

10:46 am-6:25 am

1 stop13h 39m

London Heathrow

Fri 9/19

8:20 am-5:25 pm

1 stop15h 05m

$665

Kansas CityLondon

MCI - LHR

MCILHR

Kansas City

Fri 9/12

6:26 pm-12:45 pm

1 stop12h 19m

London Heathrow

Fri 9/19

9:15 am-4:24 pm

1 stop13h 09m

$666

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 18 results
1
2

Best time to book a flight from Kansas City to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Kansas City with our price prediction graph.
Estimated round-trip 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.

Cheapflights Insights

Everything you need to know about your flight from Kansas City to London Heathrow Airport

How far ahead should I book a flight from Kansas City to London Heathrow Airport?

Use this chart to determine the optimal time to book a round-trip flight from Kansas City to Heathrow. Price data was last updated on August 8, 2025.

Booking 15 days in advance of your planned departure date is, on average, the best time to get cheap flights from Kansas City to London Heathrow Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Kansas City to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from Kansas City to London Heathrow Airport (average of $661). Flying from Kansas City to London Heathrow Airport in June is currently the most expensive (average of $1,097). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MCI to LHR?

Find hourly flight availability from Kansas City to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 13, 2025.

A simple way to save on the total cost of your ticket is to fly from Kansas City to London Heathrow Airport in the evening. If you’re flexible enough to do this you can expect to save up to 12% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Kansas City to London Heathrow Airport?

Use this chart to determine the cheapest time to fly round-trip from Kansas City to Heathrow. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Kansas City to London Heathrow Airport flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Kansas City to London Heathrow Airport?

What’s the top layover airport for flights from Kansas City to London Heathrow Airport?

Share of 1-stop round-trip flights from Kansas City to London Heathrow Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.

Chicago (ORD) – chosen by Cheapflights users on 90% of 1-stop itineraries from Kansas City to London Heathrow Airport on Cheapflights.

What’s the cheapest layover airport for flights from Kansas City to London Heathrow Airport?

Average round-trip fare for 1-stop flights from Kansas City to London Heathrow Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of $750.

What’s the fastest layover option from Kansas City to London Heathrow Airport?

Shortest average travel time for 1-stop one-way flights from Kansas City to London Heathrow Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Chicago (ORD) have the shortest average one-way travel time for 1-stop routes: 10h 18m.

Which airport typically offers the quickest layover for flights from Kansas City to London Heathrow Airport?

Average layover duration for 1-stop one-way flights from Kansas City to London Heathrow Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Chicago (ORD) offer the fastest connection on this route, with an average layover time of 1h 31m.

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated August 13, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Kansas City to London Heathrow Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,979 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,979 reviews
Delta
8.0
Very good
7,979 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,920 reviews
Delta
8.0
Very good
7,979 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,979 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Iberia
7.0
Good
2,878 reviews
Delta
8.0
Very good
7,979 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
British Airways
6.7
Okay
7,265 reviews
Delta
8.0
Very good
7,979 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Kansas City to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Kansas City to London Heathrow?

    Most people fly from Kansas City (MCI) if they book a flight from Kansas City to London Heathrow. On average, Kansas City has 0 outbound flights to London Heathrow per day from 8 airlines. Kansas City is conveniently located just 17.4 mi from Kansas City’s city center.

  • What are the cheapest airlines flying from Kansas City to London Heathrow Airport round-trip?

    Flying on United Airlines is currently your cheapest option to London Heathrow Airport, with prices starting at $663. Another option worth looking into is Delta, starting at $665 round trip. United Airlines is currently priced 28% below the average price you’ll pay for this route.

  • Can I find deals for flights from Kansas City to Heathrow that include hotel bookings?

    Yes. In addition to deals on Kansas City to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kansas City to Heathrow?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kansas City to Heathrow.

  • Can I find deals for business class flights from Kansas City to Heathrow?

    Yes. Cheapflights offers flight deals from Kansas City to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Kansas City to London Heathrow Airport?

    Currently, November is the cheapest month in which you can book a flight from Kansas City to London Heathrow Airport (average of $661). Flying from Kansas City to London Heathrow Airport in June is currently the most expensive (average of $1,097). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Hounslow
Hayes
Thornton Heath
Harrow
Canterbury
Dartford
Dover
Stratford-upon-Avon
Orpington
Watford
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Chelmsford
Southend-on-Sea
Folkestone
Chichester
Swindon

Browse thousands of different options on Cheapflights for your next trip

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Top 8 airlines flying from Kansas City to Heathrow

Discover the top 8 airlines that operate flights from Kansas City to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest$599Average$813FlexibilityNo cancel feeOn-time76%
Virgin AtlanticCheapest$620Average$836FlexibilityNo cancel feeOn-time72%
KLMCheapest$631Average$846FlexibilityNo cancel feeOn-time75%
IberiaCheapest$658Average$926FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$686Average$967FlexibilityNo cancel feeOn-time70%
DeltaCheapest$697Average$908FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$702Average$921FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$705Average$1,030FlexibilityNo cancel feeOn-time71%

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