£243 Cheap Flights from Des Moines (DSM) to London (LHR)

View £243 flight on Wed, 12 Aug 2026Opens in a new window

Popular airlines from Des Moines International Airport (DSM) to Heathrow Airport (LHR)

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Cheap Flights from Des Moines (DSM) to London (LHR)

Prices were available within the past 7 days and start at £243 for one-way flights and £746 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, 15 Mar - Sat, 27 Mar
DSM
Des Moines
LHR
London
£746 Return, found 2 days ago
£746
Return
found 2 days ago
Select United flight, departing Mon, 15 Mar from Des Moines to London, returning Sat, 27 Mar, priced at £746 found 2 days ago
United
Mon, 15 Mar - Sat, 27 Mar
DSM
Des Moines
LHR
London
£772 Return, found 2 days ago
£772
Return
found 2 days ago
Select United flight, departing Mon, 15 Mar from Des Moines to London, returning Sat, 27 Mar, priced at £772 found 2 days ago
Air Canada
Wed, 13 May - Sun, 17 May
DSM
Des Moines
LHR
London
£815 Return, found 5 days ago
£815
Return
found 5 days ago
Select Air Canada flight, departing Wed, 13 May from Des Moines to London, returning Sun, 17 May, priced at £815 found 5 days ago
Iberia
Mon, 11 May - Mon, 18 May
DSM
Des Moines
LHR
London
£824 Return, found 3 hours ago
£824
Return
found 3 hours ago
Select Iberia flight, departing Mon, 11 May from Des Moines to London, returning Mon, 18 May, priced at £824 found 3 hours ago
British Airways
Mon, 11 May - Mon, 18 May
DSM
Des Moines
LHR
London
£824 Return, found 3 hours ago
£824
Return
found 3 hours ago
Select British Airways flight, departing Mon, 11 May from Des Moines to London, returning Mon, 18 May, priced at £824 found 3 hours ago
American Airlines
Mon, 11 May - Mon, 18 May
DSM
Des Moines
LHR
London
£824 Return, found 3 hours ago
£824
Return
found 3 hours ago
Select American Airlines flight, departing Mon, 11 May from Des Moines to London, returning Mon, 18 May, priced at £824 found 3 hours ago
British Airways
Fri, 8 May - Fri, 15 May
DSM
Des Moines
LHR
London
£826 Return, found 5 days ago
£826
Return
found 5 days ago
Select British Airways flight, departing Fri, 8 May from Des Moines to London, returning Fri, 15 May, priced at £826 found 5 days ago
Air Canada
Mon, 11 May - Mon, 18 May
DSM
Des Moines
LHR
London
£830 Return, found 3 hours ago
£830
Return
found 3 hours ago
Select Air Canada flight, departing Mon, 11 May from Des Moines to London, returning Mon, 18 May, priced at £830 found 3 hours ago
Lufthansa
Mon, 11 May - Mon, 18 May
DSM
Des Moines
LHR
London
£830 Return, found 3 hours ago
£830
Return
found 3 hours ago
Select Lufthansa flight, departing Mon, 11 May from Des Moines to London, returning Mon, 18 May, priced at £830 found 3 hours ago
Finnair
Fri, 8 May - Fri, 15 May
DSM
Des Moines
LHR
London
£843 Return, found 5 days ago
£843
Return
found 5 days ago
Select Finnair flight, departing Fri, 8 May from Des Moines to London, returning Fri, 15 May, priced at £843 found 5 days ago

Frequently asked questions

How do I find cheap flights from Des Moines, IA (DSM-Des Moines Intl.) to London (LHR-Heathrow)?
To find a cheap flight from Des Moines, IA (DSM-Des Moines Intl.) to London (LHR-Heathrow), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Des Moines, IA (DSM-Des Moines Intl.) to London (LHR-Heathrow)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Des Moines, IA (DSM-Des Moines Intl.) to London (LHR-Heathrow)?
There are approximately 41 connecting flights per day from Des Moines Intl. (DSM) to London Heathrow (LHR). Some common connection points include O'Hare Intl. (ORD), Minneapolis - St. Paul Intl. (MSP), and Hartsfield-Jackson Atlanta Intl. (ATL).
What is the earliest flight from Des Moines, IA (DSM-Des Moines Intl.) to London (LHR-Heathrow)?
The earliest flight from Des Moines Intl. (DSM) to London Heathrow (LHR) typically departs at approximately 5:00 AM local time. This service is operated by American Airlines and is seasonal, active only in July. An early departure like this can help you maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Des Moines, IA (DSM-Des Moines Intl.) to London (LHR-Heathrow)?
You'll typically find the most flights from Des Moines, IA (DSM-Des Moines Intl.) to London (LHR-Heathrow) on a Wednesday, with around 47 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Delta Air Lines, American Airlines, and United Airlines. Flight schedules are consistent throughout the week.
What are the most popular departure times for flights from Des Moines, IA (DSM-Des Moines Intl.) to London (LHR-Heathrow)?
The most popular departure times for flights from Des Moines, IA (DSM-Des Moines Intl.) to London (LHR-Heathrow) are between 12pm and 3pm. About 34% of passengers prefer this time window. Many major carriers, including American Airlines and British Airways, offer flights during this window. This timing works well because it allows for a mid-day departure, getting you to your destination in the evening.
How long does it take to fly from Des Moines, IA (DSM-Des Moines Intl.) to London (LHR-Heathrow)?
Flights from DSM to LHR with one stop typically take around 13 hours 20 minutes, covering approximately 4,179 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Des Moines, IA (DSM-Des Moines Intl.) to London (LHR-Heathrow)?
Select the "Business class" and "First class" filters when looking for DSM to LHR flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Des Moines, IA (DSM-Des Moines Intl.) to London (LHR-Heathrow) flight with Expedia?
It's easy to earn miles on a Des Moines, IA (DSM-Des Moines Intl.) to London (LHR-Heathrow) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for London from Des Moines Intl. (DSM)?
When traveling from Des Moines Intl. (DSM) to London, you can fly into Gatwick (LGW) and Heathrow (LHR). Some flights may connect through major hubs like O'Hare Intl. (ORD), Charlotte-Douglas Intl. (CLT), Dallas-Fort Worth Intl. (DFW) before reaching London. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Des Moines, IA (DSM-Des Moines Intl.) to London (LHR-Heathrow) at the last minute?
Typically, booking a last minute flight from Des Moines, IA (DSM-Des Moines Intl.) to London (LHR-Heathrow) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Des Moines, IA (DSM-Des Moines Intl.) to London (LHR-Heathrow) flight and hotel package?
Securing a Des Moines, IA (DSM-Des Moines Intl.) to London (LHR-Heathrow) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Des Moines, IA (DSM-Des Moines Intl.) to London (LHR-Heathrow)?
If you booked your Des Moines, IA (DSM-Des Moines Intl.) to London (LHR-Heathrow) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Des Moines Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, British Airways, Delta, Finnair, Iberia, KLM, Lufthansa, United, Virgin Atlantic
Return price
£745
Distance
6686 km

Book with confidence

Compare flights from Des Moines to London easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Des Moines to London. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Heathrow in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Des Moines Intl. to Heathrow.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Des Moines Intl. (DSM) to Heathrow (LHR)

The easiest way to view the best deals on flights from Des Moines to London today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Des Moines Intl. to Heathrow start at just £746 and range up to £843.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Des Moines and London
  • booking your flight during March, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Des Moines to London flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Des Moines Intl. to Heathrow for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Des Moines to London easily and book with confidence

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*Available to Expedia members.