$466 Cheap Flights from Des Moines (DSM) to London (LHR)

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
Find available prices by choosing your travel dates.

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

Prices were available within the past 7 days and start at $466 for one-way flights and $748 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Iberia
United
Delta
Delta
Virgin Atlantic
Air Canada
United
British Airways
Scandinavian Airlines
Flights from Des Moines (DSM) to London (LHR)
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, Scandinavian Airlines, United, Virgin Atlantic
Roundtrip price
$747
Distance
4178 mi

Des Moines to London Flights

The cheapest times to fly from Des Moines to London

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Des Moines to London are during the month of October. You can find some of the cheapest flights from Des Moines to London with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Des Moines to London

Sunday is one of the best days to book for cheap flights from Des Moines to London: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Des Moines to London

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Des Moines to London in 2025. You can also book with separate airlines for your outbound and return journeys, from $466 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Des Moines to London flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Des Moines to London airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

Is it cheaper to buy a plane ticket from Des Moines Intl. Airport (DSM) to LHR last minute?
When it’s time to book your flights, it’s always better to be prepared. While you could find a deal on a DSM to LHR flight at the last minute, prices usually don’t get cheaper as the departure date nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to book a domestic flight is between 28 – 35 days ahead. For international journeys it’s three to four months.
What airports do you fly into for London from Des Moines?
With Heathrow Airport (LHR), London City Airport (LCY) and Gatwick Airport (LGW) to choose from, traveling from Des Moines to London is no sweat. The city’s busiest terminal, Heathrow Airport (LHR), is approximately 14 mi west of the downtown area. Along with the price of tickets, consider things like the ease of getting from the airport and the distance to your hotel when deciding where to touch down. Get your London trip off to an exciting start by visiting Big Ben and Buckingham Palace.
Can I change the date of my flight from Des Moines Intl. Airport to Heathrow Airport?
Sometimes life gets in the way of plans, so Expedia is here to help make things as simple as possible. First, find your DSM to Heathrow Airport itinerary through the Expedia Trips portal and look up the fare rules and restrictions about what sorts of changes are allowed. If you booked your fare in the last 24 hours, some airlines will let you cancel at no cost and organize new flights. If you booked more than 24 hours ago, get in touch with us via our Customer Service portal to run through your options.

Explore a world of travel with Expedia

*Available to One Key members.