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$663+ Cheap flights from Waterloo, IA (ALO) to the United Kingdom

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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
ALO — LHR
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Waterloo to United Kingdom

Cheapest flights from Waterloo to United Kingdom
Explore the most affordable flight options available from Waterloo to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This British Airways deal was found by Cheapflights users on 1/28. 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.
Wed 2/255:20 am
ALO
-
LHR
1 stop19h 35m
Multiple Airlines
Wed 3/43:45 pm
LHR
-
ALO
1 stop14h 08m
Multiple Airlines
Deal found 1/28$663
This American Airlines deal was found by Cheapflights users on 1/27. 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 9/53:13 pm
ALO
-
LHR
2 stops12h 52m
American Airlines
Sun 9/132:25 pm
LHR
-
ALO
2 stops14h 51m
American Airlines
Deal found 1/27$823
This American Airlines deal was found by Cheapflights users on 1/29. 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 3/153:10 pm
ALO
-
LHR
2 stops15h 15m
American Airlines
Sun 3/2212:10 pm
LHR
-
ALO
2 stops16h 43m
American Airlines
Deal found 1/29$1,225
This American Airlines deal was found by Cheapflights users on 1/28. 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 3/145:20 am
ALO
-
LHR
2 stops20h 05m
American Airlines
Sat 3/2110:40 am
LHR
-
ALO
2 stops18h 13m
American Airlines
Deal found 1/28$1,322
This British Airways deal was found by Cheapflights users on 1/29. 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.
Sun 3/153:10 pm
ALO
-
LHR
1 stop10h 45m
Multiple Airlines
Sun 3/223:45 pm
LHR
-
ALO
1 stop13h 08m
Multiple Airlines
Deal found 1/29$1,782

Find flight deals from Waterloo to United Kingdom

Keep the following information in mind while searching for Waterloo to United Kingdom flight deals. Data was last updated January 29, 2026.

Most accurate provider

Ovago
2 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$663
(British Airways)
Provider with most accurate pricing for Waterloo-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Waterloo-London (LON) flights.
Search Deals
From Waterloo to United Kingdom
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Waterloo to United Kingdom 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 January 29, 2026.
Use the filters below to find and compare flights from Waterloo to the United Kingdom that are best for you.

Fly from

Waterloo

Fly to

United Kingdom

Route

Depart

Return

Price

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Wed 2/25

5:20 am-6:55 am

1 stop19h 35m

London Heathrow

Wed 3/4

3:45 pm-11:53 pm

1 stop14h 08m

$663

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Sun 3/15

3:10 pm-11:25 am

2 stops15h 15m

London Heathrow

Sun 3/22

12:10 pm-11:53 pm

2 stops16h 43m

$1,225

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Sat 3/14

5:20 am-6:25 am

2 stops20h 05m

London Heathrow

Sat 3/21

10:40 am-11:53 pm

2 stops18h 13m

$1,322

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Sun 3/15

3:10 pm-6:55 am

1 stop10h 45m

London Heathrow

Sun 3/22

3:45 pm-11:53 pm

1 stop13h 08m

$1,782

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Best time to book a flight from Waterloo to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom 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 the United Kingdom

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

Currently, January is the cheapest month in which you can book a flight from Waterloo, Iowa to United Kingdom (average of $575). Flying from Waterloo, Iowa to United Kingdom in June is currently the most expensive (average of $770). 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 United Kingdom. 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 United Kingdom?

    For a flight from Waterloo to United Kingdom, you will be flying from Waterloo. Waterloo (ALO) is just 5.3 mi from the center of the city.

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

    A quick flight from Waterloo, Iowa to United Kingdom can take about 15h 15m. American Airlines provides one of the quickest options available for as low as $1,225. The distance from Waterloo, Iowa to United Kingdom is about 4081 mi.

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

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

  • How can I find direct flights from Waterloo to United Kingdom?

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

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

    Yes. Cheapflights offers flight deals from Waterloo to United Kingdom 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 United Kingdom?

    Currently, January is the cheapest month in which you can book a flight from Waterloo, Iowa to United Kingdom (average of $575). Flying from Waterloo, Iowa to United Kingdom in June is currently the most expensive (average of $770). 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

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