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$962+ Cheap flights from Waterloo, IA (ALO) 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
ALO — LHR
Aug 20 — Aug 271
Thu 8/20
Thu 8/27
1 adult, Economy
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Cheap flight deals from Waterloo to Heathrow

Cheapest flights from Waterloo to Heathrow
Explore the most affordable flight options available from Waterloo to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 21, 2026.

This American Airlines deal was found by Cheapflights users on 7/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/193:23 pm
ALO
-
LHR
1 stop13h 07m
American Airlines
Wed 8/262:25 pm
LHR
-
ALO
1 stop15h 57m
American Airlines
Deal found 7/20$962
This Finnair deal was found by Cheapflights users on 7/19. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/163:23 pm
ALO
-
LHR
1 stop13h 52m
Multiple Airlines
Sun 8/233:15 pm
LHR
-
ALO
1 stop15h 07m
Multiple Airlines
Deal found 7/19$1,003
This American Airlines deal was found by Cheapflights users on 7/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/163:23 pm
ALO
-
LHR
1 stop10h 42m
American Airlines
Sun 8/231:10 pm
LHR
-
ALO
1 stop17h 12m
American Airlines
Deal found 7/19$1,008
This American Airlines deal was found by Cheapflights users on 7/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:00 am
ALO
-
LHR
2 stops18h 50m
American Airlines
Mon 8/243:00 pm
LHR
-
ALO
2 stops15h 22m
American Airlines
Deal found 7/20$1,021
This American Airlines deal was found by Cheapflights users on 7/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/155:00 am
ALO
-
LHR
1 stop19h 50m
American Airlines
Sat 8/222:25 pm
LHR
-
ALO
1 stop15h 57m
American Airlines
Deal found 7/18$1,062

Find flight deals from Waterloo to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Waterloo (ALO) 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 July 21, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$962
(American Airlines)
Provider with most accurate pricing for Waterloo-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Waterloo-London (LON) flights.
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From Waterloo to London Heathrow
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Waterloo 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 July 21, 2026.
Use the filters below to find and compare flights from Waterloo to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Wed 8/19

3:23 pm-10:30 am

1 stop13h 07m

London Heathrow

Wed 8/26

2:25 pm-12:22 am

1 stop15h 57m

$962

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Sun 8/16

3:23 pm-11:15 am

1 stop13h 52m

London Heathrow

Sun 8/23

3:15 pm-12:22 am

1 stop15h 07m

$1,003
Quickest round-trip

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Sun 8/16

3:23 pm-8:05 am

1 stop10h 42m

London Heathrow

Sun 8/23

1:10 pm-12:22 am

1 stop17h 12m

$1,008

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Tue 8/18

5:00 am-5:50 am

2 stops18h 50m

London Heathrow

Mon 8/24

3:15 pm-12:22 am

1 stop15h 07m

$1,017

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/20

Sorted by cheapest first

Best time to book a flight from Waterloo to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Waterloo 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.

Related info for your journey

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

    Located just 5.3 mi from the city center, Waterloo is the airport most travelers will use when flying to London Heathrow from Waterloo. Booking flights from Waterloo (ALO) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 0 different airlines.

  • How long is the flight from Waterloo, Iowa to London Heathrow Airport?

    American Airlines can get you from Waterloo, Iowa to London Heathrow Airport in just under 13h 07m. Your travel time can differ by up to . The distance between Waterloo, Iowa and London Heathrow Airport is about 4081 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Waterloo 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.

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
Ilford
Dorking
Hounslow
Winchester
Croydon
Gatwick
Wembley
Harrow
Eastleigh
Southend-on-Sea
Watford
Northampton
Dartford
Chipping Norton
Kingston upon Thames
Eastbourne
Slough
Stansted
Sutton
Luton

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