$334 Cheap Flights from Kalispell (FCA) to London (LHR)
Popular airlines from Glacier Park Intl. Airport (FCA) to Heathrow Airport (LHR)
British AirwaysBritish Airways
Alaska AirlinesAlaska Airlines
DeltaDelta
UnitedUnited
FinnairFinnair
KLMKLM
Air FranceAir France
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Cheap Flights from Kalispell to London (FCA-LHR)
Alternative airports near London
Prices were available within the past 7 days. Prices and availability are subject to change.
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Kalispell (FCA) to London (LHR) at a glance
Travel with a selection of airlines operating routes from Kalispell (FCA) to London (LHR) on this international long-haul journey. Explore options from full-service carriers to discover the itinerary that best suits your budget, schedule, and travel plans while you enjoy the iconic sights and neighborhoods of London. Here, you'll find essential details for flights departing from Glacier Park International Airport (FCA) to Heathrow Airport (LHR).
- Fastest flight duration: around 11h 15m in-flight, plus roughly 3h 15m layover with one stop
- Route distance: roughly 4,500 miles (7,240 km)
- Flights per week: around 7 departures on average
- Typical fares (one-way): economy tickets often range from $360–$1110, depending on seasonality and how far ahead you book
Flights from Glacier Park International Airport (FCA) to Heathrow Airport (LHR)
Based on recent traveler bookings, here are the top airlines preferred for one-stop flights from Kalispell to London. Popular layover options include Denver International Airport (DEN) with a layover of about 1 hour, O'Hare International Airport (ORD) with around a 3-hour layover, and Salt Lake City International Airport (SLC) with a layover of approximately 3 hours and 30 minutes. This variety allows you to mix and match factors like price, total travel time, and cabin class to create the ideal itinerary.
- United: This comprehensive carrier provides one-stop services, with one-way ticket prices generally falling between $370 and $1230. It dominates the route, representing roughly 53% of departures. Expect an in-flight duration of 11 hours and 15 minutes, leading to a total travel time of about 14 hours and 30 minutes, including layover.
- Virgin Atlantic: Another full-service airline, Virgin Atlantic, offers one-stop flights with one-way fares typically ranging from $405 to $455. It accounts for about 18% of departures on this route. The in-flight experience lasts approximately 11 hours and 15 minutes, while the total journey time is around 14 hours and 30 minutes, factoring in the layover.
Alternative route from Kalispell (FCA) to London (LHR)
- Kalispell to London (FCA-LGW): Gatwick Airport (LGW) is located approximately 25 miles from Heathrow Airport (LHR).
How to find the best prices for flights from Kalispell (FCA) to London (LHR)
Getting some of the best deals on flights from Kalispell to London is all about timing and flexibility. Here are some key tips to help you save:
- Best times to book and fly: cheaper fares are typically found when booking 2-8 weeks in advance, which coincides with when most travelers make their reservations. Afternoon departures between 12 PM and 6 PM tend to offer lower prices and are also the most popular flight times. Additionally, flying on Thursday usually provides cheaper options, although Friday remains the most popular travel day.
- Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
- Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
- Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
- Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
- Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.
*Members only. Savings vary and are not available on all bundles. Select hotels.
Arriving at Heathrow Airport from Glacier Park International Airport
London welcomes travelers from Kalispell with a range of transport options based on price, convenience, and proximity. London city center is approximately a 35-minute drive (covering about 19 miles) from Heathrow Airport, depending on traffic. Here's how to reach London efficiently:
- Hotel transfer: Transfers offer a convenient way to reach your hotel in London, with private rides that can be arranged in advance.
- Car rental: Renting a car from Heathrow Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Heathrow Airport on Expedia.
- Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
- Public transportation: From Heathrow Airport, several key transport links are easily accessible on foot: Heathrow Terminals 2 & 3 Underground Station, a metro station, is located about 0.2 miles away, as is Heathrow Central Bus Station, a bus station, while Heathrow Terminals 2 & 3 Station, a train station, is about 0.3 miles from the airport.
Kalispell to London Flights
The cheapest times to fly from Kalispell 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 Kalispell to London are during the month of April. You can find some of the cheapest flights from Kalispell to London with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Kalispell to London
Sunday is one of the best days to book for cheap flights from Kalispell 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 Kalispell 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 Kalispell to London in 2026. You can also book with separate airlines for your outbound and return journeys, from $334 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 Kalispell 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 Kalispell 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
How much does a flight from Kalispell, MT (FCA-Glacier Park Intl.) to London (LHR-Heathrow) cost?
You can find cheap one-way flights from $334 and cheap return flights $893 Kalispell, MT (FCA-Glacier Park Intl.) to London (LHR-Heathrow) with Expedia. One-way flights generally range between $558 and $6075, and roundtrip flights usually range from $787 to $6621. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Kalispell, MT (FCA-Glacier Park Intl.) to London (LHR-Heathrow) ticket fares go up or down.
*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Kalispell, MT (FCA-Glacier Park Intl.) to London (LHR-Heathrow)?
The cheapest month to fly from FCA to LHR is April when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Kalispell, MT (FCA-Glacier Park Intl.) to London (LHR-Heathrow)?
Enter FCA to LHR and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Kalispell, MT (FCA-Glacier Park Intl.) to London (LHR-Heathrow)?
British Airways is one of the cheapest airlines offering connecting flights from Kalispell (FCA) to London (LHR), with round-trip tickets starting from around $1,400. This is a fantastic way to explore the UK. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Kalispell, MT (FCA-Glacier Park Intl.) to London (LHR-Heathrow)?
To find a cheap flight from Kalispell, MT (FCA-Glacier Park 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 Kalispell, MT (FCA-Glacier Park 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.
What is the earliest flight from Kalispell, MT (FCA-Glacier Park Intl.) to London (LHR-Heathrow)?
The earliest flight from Kalispell, MT (FCA) to London (LHR) usually departs at around 5:00 AM, operated by Delta. This seasonal service is available in December, giving you a chance to explore London right from the start of your day. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Kalispell, MT (FCA-Glacier Park Intl.) to London (LHR-Heathrow)?
The most popular departure times for flights from Kalispell, MT (FCA) to London (LHR) are in the early afternoon, from 12pm to 3pm. About 42% of passengers prefer this time window. Many major carriers, including United Airlines and Delta Airlines, operate flights during this period. This timing works well because it allows you to enjoy a full morning before heading to the airport.
How long does it take to fly from Kalispell, MT (FCA-Glacier Park Intl.) to London (LHR-Heathrow)?
A flight from FCA to LHR with a layover takes around 14 hours 50 minutes, with the route covering approximately 4,516 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 Kalispell, MT (FCA-Glacier Park Intl.) to London (LHR-Heathrow)?
Business class seats are offered on the FCA to LHR route with Delta Air Lines.
First class is available with American Airlines.
How do I earn miles on a Kalispell, MT (FCA-Glacier Park Intl.) to London (LHR-Heathrow) flight with Expedia?
It's easy to earn miles on a Kalispell, MT (FCA-Glacier Park 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 Glacier Park Intl. (FCA)?
If you're planning to travel to London from Glacier Park Intl. (FCA), you can fly into Heathrow (LHR) Some flights may connect through major hubs like Salt Lake City Intl. (SLC), Denver Intl. (DEN), O'Hare Intl. (ORD) 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 Kalispell, MT (FCA-Glacier Park Intl.) to London (LHR-Heathrow) at the last minute?
Typically, booking a last minute flight from Kalispell, MT (FCA-Glacier Park 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 Kalispell, MT (FCA-Glacier Park Intl.) to London (LHR-Heathrow) flight and hotel package?
Securing a Kalispell, MT (FCA-Glacier Park Intl.) to London (LHR-Heathrow) London Vacation Packages 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 Kalispell, MT (FCA-Glacier Park Intl.) to London (LHR-Heathrow)?
If you booked your Kalispell, MT (FCA-Glacier Park 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 | Glacier Park Intl. Airport |
|---|---|
Destination airport | Heathrow Airport |
Distance | 4,515 miles away |
Airlines serving | British Airways, Alaska Airlines, Delta, United, Finnair, KLM, Air France, Virgin Atlantic |
Popular airline | British Airways |
Roundtrip price | $893 |