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$656+ Cheap flights from Waterloo, IA (ALO) to London (LON)

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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
ALO — LON
Jan 9 — Jan 161
Fri 1/9
Fri 1/16
1 adult, Economy
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Cheap flight deals from Waterloo to London

Best flights from Waterloo to London
Discover carefully curated flight deals from Waterloo to London that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 10, 2025.

This British Airways deal was found by Cheapflights users on 12/8. 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.
Thu 1/226:00 amALO - LHR
1 stop18h 55mMultiple Airlines
Thu 1/293:45 pmLHR - ALO
1 stop12h 38mMultiple Airlines
Deal found 12/8$656
This American Airlines deal was found by Cheapflights users on 12/8. 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 1/226:00 amALO - LHR
1 stop22h 25mAmerican Airlines
Thu 1/2911:45 amLHR - ALO
2 stops16h 38mAmerican Airlines
Deal found 12/8$661
This American Airlines deal was found by Cheapflights users on 12/8. 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 5/122:45 pmALO - LHR
1 stop10h 05mMultiple Airlines
Fri 5/229:15 amLHR - ALO
1 stop20h 04mMultiple Airlines
Deal found 12/8$683
This American Airlines deal was found by Cheapflights users on 12/8. 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 5/122:45 pmALO - LHR
2 stops12h 50mAmerican Airlines
Fri 5/222:30 pmLHR - ALO
2 stops14h 49mAmerican Airlines
Deal found 12/8$688
This American Airlines deal was found by Cheapflights users on 12/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/246:00 amALO - LHR
1 stop23h 35mAmerican Airlines
Sat 1/3112:35 pmLHR - ALO
1 stop15h 48mAmerican Airlines
Deal found 12/10$741

Find flight deals from Waterloo to London

Discover tips and strategies to find the most affordable flight options for your journey from Waterloo (ALO) to London (LON). 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 December 10, 2025.

Round-trip from

$656
(British Airways)
From Waterloo to London (LON)
Search Deals

Cheapflights Fare Finder

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

Fly from

Waterloo

Fly to

London

Route

Depart

Return

Price

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Thu 1/22

6:00 am-6:55 am

1 stop18h 55m

London Heathrow

Thu 1/29

3:45 pm-10:23 pm

1 stop12h 38m

$656

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Thu 1/22

6:00 am-10:25 am

1 stop22h 25m

London Heathrow

Thu 1/29

11:45 am-10:23 pm

2 stops16h 38m

$661

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Tue 5/12

2:45 pm-6:50 am

1 stop10h 05m

London Heathrow

Fri 5/22

9:15 am-11:19 pm

1 stop20h 04m

$683

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Tue 5/12

2:45 pm-9:35 am

2 stops12h 50m

London Heathrow

Fri 5/22

2:30 pm-11:19 pm

2 stops14h 49m

$688

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Sat 1/24

6:00 am-11:35 am

1 stop23h 35m

London Heathrow

Sat 1/31

12:35 pm-10:23 pm

1 stop15h 48m

$741

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/8

Best time to book a flight from Waterloo to London

Have a flexible travel schedule? Discover the best time to fly to London 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.

Cheapflights Insights

Everything you need to know about your flight from Waterloo to London

What is the cheapest month to book a flight from Waterloo, Iowa to London?

Currently, August is the cheapest month in which you can book a flight from Waterloo, Iowa to London (average of $582). Flying from Waterloo, Iowa to London in February is currently the most expensive (average of $798). 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 Waterloo to London. 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?

    Waterloo (ALO) is the airport you will fly out of if you book a flight from Waterloo to London. You should not have trouble finding flights to London from Waterloo; the airport handles an average of 0 outbound flights to London per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Waterloo airport to London. It is only a 5.3 mi journey to Waterloo (ALO) from Waterloo’s city center.

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

    Departing from Waterloo, Iowa to London will take you 22h 25m. There are 4081 mi between Waterloo, Iowa and London.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Waterloo to London 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 Waterloo, Iowa to London?

    Currently, August is the cheapest month in which you can book a flight from Waterloo, Iowa to London (average of $582). Flying from Waterloo, Iowa to London in February is currently the most expensive (average of $798). 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?

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