Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from London Heathrow Airport to Fort Smith from £708

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Fort Smith departing on 23/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from London Heathrow Airport to Fort Smith

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
LHR
-
FSM
4509 mimulti-stop
Multiple Airlines Logo
FSM
-
LHR
4509 mimulti-stop
Multiple Airlines

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to Fort Smith 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, momondo users made 279,928 searches. Data last updated 30 July 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Fort Smith that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest one-way

LondonFort Smith

LHR - FSM

LHRFSM

London Heathrow

Sun 23/8

08:15-23:57

2 stops21h 42m

£708

LondonFort Smith

LHR - FSM

LHRFSM

London Heathrow

Sat 22/8

06:15-22:22

2 stops22h 07m

£723

LondonFort Smith

LHR - FSM

LHRFSM

London Heathrow

Sat 22/8

16:25-09:41

1 stop23h 16m

£738

LondonFort Smith

LHR - FSM

LHRFSM

London Heathrow

Fri 21/8

08:15-22:22

2 stops20h 07m

£909

LondonFort Smith

LHR - FSM

LHRFSM

London Heathrow

Fri 21/8

12:55-22:22

1 stop15h 27m

£923

LondonFort Smith

LHR - FSM

LHRFSM

London Heathrow

Thu 20/8

20:45-16:45

2 stops26h 00m

£933

LondonFort Smith

LHR - FSM

LHRFSM

London Heathrow

Fri 21/8

08:55-16:45

1 stop13h 50m

£938

LondonFort Smith

LHR - FSM

LHRFSM

London Heathrow

Tue 18/8

17:05-16:45

2 stops29h 40m

£1,074
Fastest single journey

LondonFort Smith

LHR - FSM

LHRFSM

London Heathrow

Tue 18/8

14:45-22:22

1 stop13h 37m

£1,105

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to Fort Smith from

How to get the cheapest flight ticket from London Heathrow Airport to Fort Smith

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from London Heathrow to Fort Smith?

American Airlines is the most popular carrier operating from London Heathrow to Fort Smith

When to book flights from London Heathrow Airport to Fort Smith

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Fort Smith according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London Heathrow Airport to Fort Smith (LHR to FSM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Fort Smith

Fastest flight time

13h 32m

Direct flights

None
The fastest flight from London Heathrow Airport to Fort Smith takes 13h 32m
There are no direct flights from London Heathrow Airport to Fort Smith. There are no popular flight routes from London Heathrow Airport to Fort Smith.
Search flight deals

Frequently asked questions about flying from London Heathrow Airport to Fort Smith

  • How far is London Heathrow to Fort Smith by plane?

    London Heathrow and Fort Smith are 4507.6 mi apart from one another. Flights usually cover this in 13h 32m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from London Heathrow Airport to Fort Smith Airport?

    Prices for flights from London Heathrow Airport to Fort Smith Airport are refreshed on a daily basis.

  • How old do you have to be to fly from London Heathrow Airport to Fort Smith Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Fort Smith Airport.

  • What documentation or ID do you need to fly to Fort Smith Airport?

    The travel and health documents you'll need for your trip to Fort Smith Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Fort Smith Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from London to Fort Smith?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Fort Smith from London.

Can I find flights from London to Fort Smith with flexible booking policies on momondo?

Flights from London to Fort Smith with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from London to Fort Smith?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to Fort Smith.

I’m not ready to book a flight from London to Fort Smith right now. Can momondo alert me if prices change?

Yes. momondo can track prices for London to Fort Smith flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Fort Smith trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 29/8
Sat 5/9
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States