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$1,068+ 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
ALO — LHR
May 18 — May 251
Mon 5/18
Mon 5/25
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 April 18, 2026.

This American Airlines deal was found by Cheapflights users on 4/16. 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.
Thu 5/142:23 pm
ALO
-
LHR
1 stop14h 52m
American Airlines
Thu 5/2111:10 am
LHR
-
ALO
1 stop18h 59m
American Airlines
Deal found 4/16$1,068
This Finnair deal was found by Cheapflights users on 4/16. 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.
Wed 7/155:00 am
ALO
-
LHR
1 stop19h 50m
Multiple Airlines
Wed 7/293:15 pm
LHR
-
ALO
1 stop14h 44m
Multiple Airlines
Deal found 4/16$1,186
This British Airways deal was found by Cheapflights users on 4/14. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/25:00 am
ALO
-
LHR
1 stop19h 50m
Multiple Airlines
Wed 6/101:10 pm
LHR
-
ALO
1 stop16h 47m
Multiple Airlines
Deal found 4/14$1,214
This American Airlines deal was found by Cheapflights users on 4/16. 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 7/155:00 am
ALO
-
LHR
1 stop19h 50m
American Airlines
Wed 7/293:15 pm
LHR
-
ALO
1 stop14h 44m
American Airlines
Deal found 4/16$1,258
This American Airlines deal was found by Cheapflights users on 4/16. 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 7/155:00 am
ALO
-
LHR
1 stop19h 50m
American Airlines
Thu 7/303:50 pm
LHR
-
ALO
2 stops29h 02m
American Airlines
Deal found 4/16$1,332
This American Airlines deal was found by Cheapflights users on 4/16. 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 5/315:00 am
ALO
-
LHR
1 stop19h 50m
American Airlines
Sun 6/71:45 pm
LHR
-
ALO
2 stops16h 12m
American Airlines
Deal found 4/16$1,335
This American Airlines deal was found by Cheapflights users on 4/16. 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 7/153:22 pm
ALO
-
LHR
2 stops16h 33m
American Airlines
Fri 7/318:20 am
LHR
-
ALO
2 stops21h 39m
American Airlines
Deal found 4/16$1,359
This American Airlines deal was found by Cheapflights users on 4/14. 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.
Mon 6/13:02 pm
ALO
-
LHR
2 stops16h 28m
American Airlines
Thu 6/118:50 am
LHR
-
ALO
2 stops21h 07m
American Airlines
Deal found 4/14$1,377

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 April 18, 2026.

Most accurate provider

Ovago
2 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$1,068
(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 April 18, 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

Thu 5/14

2:23 pm-11:15 am

1 stop14h 52m

London Heathrow

Thu 5/21

11:10 am-12:09 am

1 stop18h 59m

$1,068

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Wed 7/15

5:00 am-6:50 am

1 stop19h 50m

London Heathrow

Wed 7/29

3:15 pm-11:59 pm

1 stop14h 44m

$1,186

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Tue 6/2

5:00 am-6:50 am

1 stop19h 50m

London Heathrow

Wed 6/10

1:10 pm-11:57 pm

1 stop16h 47m

$1,214

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Sun 5/31

5:00 am-6:50 am

1 stop19h 50m

London Heathrow

Sun 6/7

1:45 pm-11:57 pm

2 stops16h 12m

$1,335

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Wed 6/3

3:02 pm-1:30 pm

2 stops16h 28m

London Heathrow

Tue 6/9

8:15 am-11:57 pm

2 stops21h 42m

$1,377

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Sun 7/12

3:26 pm-1:30 pm

2 stops16h 04m

London Heathrow

Wed 7/29

9:50 am-11:59 pm

2 stops20h 09m

$1,378

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Sun 5/31

5:00 am-6:50 am

1 stop19h 50m

London Heathrow

Sun 6/7

1:10 pm-11:57 pm

1 stop16h 47m

$1,394

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Sat 5/30

5:00 am-6:50 am

1 stop19h 50m

London Heathrow

Sat 6/6

3:15 pm-11:57 pm

1 stop14h 42m

$1,462

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Tue 6/2

5:00 am-6:50 am

1 stop19h 50m

London Heathrow

Mon 6/8

3:15 pm-11:57 pm

1 stop14h 42m

$1,599

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Sun 5/31

3:02 pm-8:05 am

1 stop11h 03m

London Heathrow

Tue 6/9

1:10 pm-11:57 pm

1 stop16h 47m

$1,623

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 11 resultsSorted by cheapest first
1
2

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 14h 52m. 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
Hounslow
Winchester
Croydon
Gatwick
Southend-on-Sea
Harrow
Eastleigh
Dartford
Dover
Orpington
Watford
Northampton
Borehamwood
Broadway
Chipping Norton
Hayes
Kingston upon Thames
Eastbourne
Slough

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