$916+ 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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
ALO — LHR
Oct 5 — Oct 121
Round-trip
1 adult, Economy
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Find cheap flights from Waterloo 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
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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 Waterloo to Heathrow
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Cheapest flights from Waterloo to HeathrowExplore 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 September 5, 2026.
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 September 5, 2026.
This American Airlines deal was found by Cheapflights users on 9/2. 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 9/305:00 am -
1 stop20h 40m
Wed 10/72:30 pm -
2 stops15h 21m
Deal found 9/2![American Airlines logo]()
$916
This American Airlines deal was found by Cheapflights users on 8/31. 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 9/283:29 pm -
1 stop14h 46m
Mon 10/52:45 pm -
1 stop15h 06m
Deal found 8/31![American Airlines logo]()
$958
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Fri 10/163:39 pm -
1 stop10h 26m
Fri 10/2312:15 pm -
1 stop17h 36m
Deal found 9/2![American Airlines logo]()
$962
This American Airlines deal was found by Cheapflights users on 9/3. 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 10/183:39 pm -
1 stop14h 36m
Sun 10/253:40 pm -
1 stop13h 11m
Deal found 9/3![American Airlines logo]()
$1,094
This Finnair deal was found by Cheapflights users on 9/2. 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 9/305:00 am -
1 stop19h 50m
Wed 10/73:15 pm -
1 stop14h 36m
Deal found 9/2![Multiple Airlines logo]()
$1,128
This BusinessClass deal was found by Cheapflights users on 9/2. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/303:29 pm -
2 stops17h 01m
Wed 10/72:30 pm -
2 stops15h 21m
Deal found 9/2![British Airways logo]()
$1,188
This American Airlines deal was found by Cheapflights users on 9/2. 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 12/297:04 am -
2 stops17h 31m
Mon 1/42:15 pm -
2 stops16h 14m
Deal found 9/2![American Airlines logo]()
$1,210
This Gurufare deal was found by Cheapflights users on 9/3. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/183:39 pm -
2 stops15h 21m
Sun 10/259:00 am -
2 stops19h 51m
Deal found 9/3![SWISS logo]()
$6,404
Best flights from Waterloo to HeathrowDiscover carefully curated flight deals from Waterloo to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 5, 2026.
Discover carefully curated flight deals from Waterloo to Heathrow that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 5, 2026.
This American Airlines deal was found by Cheapflights users on 9/2. 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 9/305:00 am -
1 stop20h 40m
Wed 10/72:30 pm -
2 stops15h 21m
Deal found 9/2![American Airlines logo]()
$916
This Finnair deal was found by Cheapflights users on 9/2. 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 9/305:00 am -
1 stop19h 50m
Wed 10/73:15 pm -
1 stop14h 36m
Deal found 9/2![Multiple Airlines logo]()
$1,128
This BusinessClass deal was found by Cheapflights users on 9/2. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/303:29 pm -
2 stops17h 01m
Wed 10/72:30 pm -
2 stops15h 21m
Deal found 9/2![British Airways logo]()
$1,188
This American Airlines deal was found by Cheapflights users on 9/1. 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.
Fri 10/163:39 pm -
1 stop10h 26m
Fri 10/2312:15 pm -
1 stop17h 36m
Deal found 9/1![American Airlines logo]()
$962
This American Airlines deal was found by Cheapflights users on 8/31. 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 9/283:29 pm -
1 stop11h 36m
Mon 10/52:30 pm -
2 stops15h 21m
Deal found 8/31![American Airlines logo]()
$963
This American Airlines deal was found by Cheapflights users on 9/3. 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 10/183:39 pm -
1 stop13h 11m
Sun 10/253:05 pm -
2 stops13h 46m
Deal found 9/3![American Airlines logo]()
$966
This American Airlines deal was found by Cheapflights users on 9/2. 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 12/297:04 am -
1 stop22h 31m
Mon 1/412:35 pm -
1 stop17h 54m
Deal found 9/2![American Airlines logo]()
$1,738
This Gurufare deal was found by Cheapflights users on 9/3. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/183:39 pm -
2 stops15h 21m
Sun 10/259:00 am -
2 stops19h 51m
Deal found 9/3![SWISS logo]()
$6,404
Last-minute flights from Waterloo to HeathrowDiscover last-minute flight deals from Waterloo to Heathrow. Data last updated September 5, 2026 and is based on user searches.
Discover last-minute flight deals from Waterloo to Heathrow. Data last updated September 5, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 8/31. 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 9/283:29 pm -
1 stop14h 46m
Mon 10/52:45 pm -
1 stop15h 06m
Deal found 8/31![American Airlines logo]()
$958
This American Airlines deal was found by Cheapflights users on 9/2. 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 9/305:00 am -
1 stop20h 40m
Wed 10/72:30 pm -
2 stops15h 21m
Deal found 9/2![American Airlines logo]()
$916
This Finnair deal was found by Cheapflights users on 9/2. 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 9/305:00 am -
1 stop19h 50m
Wed 10/73:15 pm -
1 stop14h 36m
Deal found 9/2![Multiple Airlines logo]()
$1,128
This BusinessClass deal was found by Cheapflights users on 9/2. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/303:29 pm -
2 stops17h 01m
Wed 10/72:30 pm -
2 stops15h 21m
Deal found 9/2![British Airways logo]()
$1,188
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Fri 10/163:39 pm -
1 stop10h 26m
Fri 10/2312:15 pm -
1 stop17h 36m
Deal found 9/2![American Airlines logo]()
$962
This American Airlines deal was found by Cheapflights users on 9/3. 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 10/183:39 pm -
1 stop14h 36m
Sun 10/253:40 pm -
1 stop13h 11m
Deal found 9/3![American Airlines logo]()
$1,094
This Gurufare deal was found by Cheapflights users on 9/3. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/183:39 pm -
2 stops15h 21m
Sun 10/259:00 am -
2 stops19h 51m
Deal found 9/3![SWISS logo]()
$6,404
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 September 5, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $916 (American Airlines) |
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 7,457,451 searches. Data last updated September 5, 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
Cheapest round-trip
WaterlooLondon
ALO Waterloo - LHR London Heathrow
ALOLHR
Waterloo
Wed 9/30
5:00 am-7:40 am
1 stop20h 40m
London Heathrow
Wed 10/7
2:30 pm-11:51 pm
2 stops15h 21m
$916
WaterlooLondon
ALO Waterloo - LHR London Heathrow
ALOLHR
Waterloo
Fri 10/16
3:39 pm-8:05 am
1 stop10h 26m
London Heathrow
Fri 10/23
12:15 pm-11:51 pm
1 stop17h 36m
$962
Quickest round-trip
WaterlooLondon
ALO Waterloo - LHR London Heathrow
ALOLHR
Waterloo
Mon 9/28
3:29 pm-9:05 am
1 stop11h 36m
London Heathrow
Mon 10/5
2:30 pm-11:51 pm
2 stops15h 21m
$963
WaterlooLondon
ALO Waterloo - LHR London Heathrow
ALOLHR
Waterloo
Sun 10/18
3:39 pm-10:50 am
1 stop13h 11m
London Heathrow
Sun 10/25
3:05 pm-11:51 pm
2 stops13h 46m
$966
WaterlooLondon
ALO Waterloo - LHR London Heathrow
ALOLHR
Waterloo
Wed 9/30
5:00 am-6:50 am
1 stop19h 50m
London Heathrow
Wed 10/7
3:15 pm-11:51 pm
1 stop14h 36m
$1,128
WaterlooLondon
ALO Waterloo - LHR London Heathrow
ALOLHR
Waterloo
Wed 9/30
3:29 pm-2:30 pm
2 stops17h 01m
London Heathrow
Wed 10/7
2:30 pm-11:51 pm
2 stops15h 21m
$1,188
WaterlooLondon
ALO Waterloo - LHR London Heathrow
ALOLHR
Waterloo
Tue 12/29
7:04 am-11:35 am
1 stop22h 31m
London Heathrow
Mon 1/4
12:35 pm-12:29 am
1 stop17h 54m
$1,738
WaterlooLondon
ALO Waterloo - LHR London Heathrow
ALOLHR
Waterloo
Sun 10/18
3:39 pm-1:00 pm
2 stops15h 21m
London Heathrow
Sun 10/25
9:00 am-11:51 pm
2 stops19h 51m
$6,404
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.
ALO-LHR
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.
Traveling to a place near London Heathrow Airport?
Book flights to London Heathrow Airport if you plan to visit one of these locationsIlford
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Southend-on-Sea
Basingstoke
Watford
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Dartford
Croydon
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Kingston upon Thames
Eastbourne
Slough
Stansted
Sutton
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