HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Heathrow

$639+ Cheap flights from Montgomery, AL (MGM) to Heathrow (LHR)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/29. Fares are subject to change and may not be available on all flights or dates of travel.
MGM — LHR
Dec 10 — Dec 171
Wed 12/10
Wed 12/17
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Montgomery to Heathrow with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Montgomery to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Montgomery (MGM) 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 November 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$639
(Delta)
Provider with most accurate pricing for Montgomery Dannelly Field-London Heathrow flight deals.
Search Deals
Provider most trusted by Cheapflights users for Montgomery Dannelly Field-London Heathrow flights.
Search Deals
From Montgomery Dannelly Field to London Heathrow
Search Deals

Find flight deals from Montgomery to Heathrow

Cheapest flights from Montgomery to Heathrow
Explore the most affordable flight options available from Montgomery to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 2025.

This Delta deal was found by Cheapflights users on 11/10. 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.
Sat 11/296:03 amMGM - LHR
1 stop19h 47mDelta
Wed 12/108:55 amLHR - MGM
2 stops19h 37mDelta
Deal found 11/10$639
This KLM deal was found by Cheapflights users on 11/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2911:47 amMGM - LHR
1 stop14h 03mKLM
Tue 12/910:45 amLHR - MGM
1 stop17h 47mKLM
Deal found 11/10$646
This Delta deal was found by Cheapflights users on 11/10. 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.
Fri 11/286:03 amMGM - LHR
2 stops19h 02mDelta
Tue 12/94:10 pmLHR - MGM
2 stops25h 01mDelta
Deal found 11/10$1,055
This Delta deal was found by Cheapflights users on 11/10. 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.
Sat 11/299:07 amMGM - LHR
2 stops15h 13mDelta
Tue 12/911:05 amLHR - MGM
2 stops17h 27mDelta
Deal found 11/10$1,395
This Delta deal was found by Cheapflights users on 11/9. 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.
Sun 12/219:45 amMGM - LHR
2 stops17h 00mDelta
Tue 12/306:30 amLHR - MGM
2 stops20h 51mDelta
Deal found 11/9$1,606
This WestJet deal was found by Cheapflights users on 11/10. 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 WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2511:00 amMGM - LHR
2 stops19h 50mWestJet
Thu 1/12:50 pmLHR - MGM
2 stops48h 15mWestJet
Deal found 11/10$10,448

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montgomery 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 November 10, 2025.
Use the filters below to find and compare flights from Montgomery to London Heathrow Airport that are best for you.

Fly from

Montgomery

Fly to

Heathrow

Route

Depart

Return

Price

MontgomeryLondon

MGM - LHR

MGMLHR

Montgomery Dannelly Field

Sat 11/29

9:07 am-7:50 am

1 stop16h 43m

London Heathrow

Wed 12/10

8:55 am-10:32 pm

2 stops19h 37m

$639

MontgomeryLondon

MGM - LHR

MGMLHR

Montgomery Dannelly Field

Fri 11/28

9:07 am-11:40 am

1 stop20h 33m

London Heathrow

Tue 12/9

11:30 am-10:32 pm

2 stops17h 02m

$639

MontgomeryLondon

MGM - LHR

MGMLHR

Montgomery Dannelly Field

Sat 11/29

11:47 am-6:25 am

1 stop12h 38m

London Heathrow

Tue 12/9

11:30 am-10:32 pm

2 stops17h 02m

$639

MontgomeryLondon

MGM - LHR

MGMLHR

Montgomery Dannelly Field

Sat 11/29

11:47 am-7:50 am

1 stop14h 03m

London Heathrow

Tue 12/9

10:45 am-10:32 pm

1 stop17h 47m

$646

MontgomeryLondon

MGM - LHR

MGMLHR

Montgomery Dannelly Field

Sat 11/29

11:47 am-7:50 am

1 stop14h 03m

London Heathrow

Wed 12/10

3:50 pm-8:26 am

1 stop22h 36m

$646

MontgomeryLondon

MGM - LHR

MGMLHR

Montgomery Dannelly Field

Fri 11/28

9:07 am-7:50 am

1 stop16h 43m

London Heathrow

Tue 12/9

8:55 am-10:32 pm

1 stop19h 37m

$646

MontgomeryLondon

MGM - LHR

MGMLHR

Montgomery Dannelly Field

Fri 3/27

5:55 pm-11:40 am

1 stop12h 45m

London Heathrow

Tue 3/31

8:55 pm-5:14 pm

2 stops26h 19m

$739

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/9

Compare providers for flights from Montgomery to Heathrow

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Montgomery to Heathrow in November.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Montgomery, Alabama-London Heathrow Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Montgomery, Alabama-London Heathrow Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Montgomery, Alabama-London Heathrow Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Montgomery, Alabama-London Heathrow Airport flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Montgomery, Alabama-London Heathrow Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Montgomery to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Montgomery 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 Montgomery to London Heathrow Airport

What is the cheapest month to book a flight from Montgomery, Alabama to London Heathrow Airport?

Currently, September is the cheapest month in which you can book a flight from Montgomery, Alabama to London Heathrow Airport (average of $573). Flying from Montgomery, Alabama to London Heathrow Airport in January is currently the most expensive (average of $1,934). 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.

Related info for your journey

Find useful and relevant information for your journey from Montgomery 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 Montgomery to London Heathrow?

    Montgomery Dannelly Field (MGM), located 7.1 mi from the city center, is the airport you fly out of when you book flights from Montgomery to London Heathrow. 0 airlines have flights from Dannelly Field to London Heathrow on a regular basis. Booking flights from Montgomery Dannelly Field to London Heathrow should not be difficult; the airport handles an average of 0 outbound flights to London Heathrow per day.

  • How long is the flight from Montgomery, Alabama to London Heathrow Airport?

    For as low as $639, Delta can have you in London Heathrow Airport from Montgomery, Alabama in 16h 43m. Montgomery, Alabama and London Heathrow Airport are separated by a distance of 4344 mi.

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

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

  • How can I find direct flights from Montgomery to Heathrow?

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

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

    Yes. Cheapflights offers flight deals from Montgomery 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 Montgomery, Alabama to London Heathrow Airport?

    Currently, September is the cheapest month in which you can book a flight from Montgomery, Alabama to London Heathrow Airport (average of $573). Flying from Montgomery, Alabama to London Heathrow Airport in January is currently the most expensive (average of $1,934). 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
Ilford
Hayes
Southend-on-Sea
Harrow
Croydon
Eastleigh
Dartford
Dover
Winchester
Orpington
Northampton
Gatwick
Borehamwood
Broadway
Aylesbury
Bedford
Chipping Norton
Wembley
Folkestone

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Montgomery to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.
Atlanta to Heathrow flights
Atlanta to Gatwick flights
Atlanta to London City flights
Atlanta to Stansted flights
Atlanta to Luton flights
Birmingham to Heathrow flights
Pensacola to Heathrow flights
Huntsville to Heathrow flights
Chattanooga to Heathrow flights
Valparaiso to Heathrow flights
Pensacola to London City flights
Huntsville to London City flights
Birmingham to London City flights
Pensacola to Gatwick flights
Mobile to Heathrow flights
Chattanooga to London City flights
Valparaiso to Gatwick flights
Valparaiso to London City flights
Huntsville to Gatwick flights
Mobile to London City flights
Birmingham to Gatwick flights
Atlanta to Southend flights
Mobile to Gatwick flights
Chattanooga to Gatwick flights
Florence to Heathrow flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.