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

Departing from Waterloo, Iowa to London will take you 19h 58m. There are 4081 mi between Waterloo, Iowa and London.

In terms of precipitation, rainfall in London ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit London when rainfall is around 1.6 in.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

What is the cheapest time of day to fly from ALO to LON?

When flying from Waterloo, Iowa to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Most accurate provider : When it comes to deals on Waterloo, Iowa-London flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Waterloo, Iowa-London flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Waterloo, Iowa-London flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Waterloo, Iowa-London flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Waterloo, Iowa-London flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

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.

$912+ Cheap Flights from Waterloo, IA to London

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Cheap flight deals from Waterloo to London

Cheapest

Best

Last-minute

Cheapest flights from Waterloo to London
Explore the most affordable flight options available from Waterloo to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 2, 2026.

Tue 10/136:07 am -

1 stop19h 58m

Tue 10/2012:15 pm -

1 stop17h 36m

Deal found 8/29

$912

Wed 9/305:00 am -

1 stop20h 40m

Wed 10/72:30 pm -

2 stops15h 21m

Deal found 9/2

$916

Mon 9/283:29 pm -

1 stop14h 46m

Mon 10/52:45 pm -

1 stop15h 06m

Deal found 8/31

$958

Fri 10/163:39 pm -

1 stop10h 26m

Fri 10/2312:15 pm -

1 stop17h 36m

Deal found 9/2

$962

Wed 9/305:00 am -

1 stop19h 50m

Wed 10/73:15 pm -

1 stop14h 36m

Deal found 9/2

$1,128

Wed 9/303:29 pm -

2 stops17h 01m

Wed 10/72:30 pm -

2 stops15h 21m

Deal found 9/2

$1,188

Tue 12/297:04 am -

1 stop22h 31m

Mon 1/42:15 pm -

2 stops16h 14m

Deal found 9/2

$1,210

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 September 2, 2026.

Tue 10/136:07 am -

1 stop19h 58m

Tue 10/2012:15 pm -

1 stop17h 36m

Deal found 8/29

$912

Wed 9/305:00 am -

1 stop19h 50m

Wed 10/73:15 pm -

1 stop14h 36m

Deal found 9/2

$1,128

Wed 9/303:29 pm -

2 stops17h 01m

Wed 10/72:30 pm -

2 stops15h 21m

Deal found 9/2

$1,188

Wed 9/305:00 am -

1 stop20h 40m

Wed 10/72:30 pm -

2 stops15h 21m

Deal found 9/2

$916

Mon 9/283:29 pm -

1 stop14h 46m

Mon 10/52:45 pm -

1 stop15h 06m

Deal found 8/31

$958

Thu 10/156:07 am -

1 stop18h 43m

Thu 10/222:45 pm -

1 stop15h 06m

Deal found 8/31

$962

Fri 10/163:39 pm -

1 stop10h 26m

Fri 10/2312:15 pm -

1 stop17h 36m

Deal found 9/1

$962

Tue 12/297:04 am -

1 stop22h 31m

Mon 1/412:35 pm -

1 stop17h 54m

Deal found 9/2

$1,738

Last-minute flights from Waterloo to London
Discover last-minute flight deals from Waterloo to London. Data last updated September 2, 2026 and is based on user searches.

Mon 9/283:29 pm -

1 stop14h 46m

Mon 10/52:45 pm -

1 stop15h 06m

Deal found 8/31

$958

Wed 9/305:00 am -

1 stop20h 40m

Wed 10/72:30 pm -

2 stops15h 21m

Deal found 9/2

$916

Wed 9/305:00 am -

1 stop19h 50m

Wed 10/73:15 pm -

1 stop14h 36m

Deal found 9/2

$1,128

Wed 9/303:29 pm -

2 stops17h 01m

Wed 10/72:30 pm -

2 stops15h 21m

Deal found 9/2

$1,188

Tue 10/136:07 am -

1 stop19h 58m

Tue 10/2012:15 pm -

1 stop17h 36m

Deal found 8/29

$912

Fri 10/163:39 pm -

1 stop10h 26m

Fri 10/2312:15 pm -

1 stop17h 36m

Deal found 9/2

$962

Find flight deals from Waterloo to London

Most accurate provider	Ovago 3 stars
Most trusted provider	Ovago 3 stars
Round-trip from	$912 (American Airlines)

Provider with most accurate pricing for Waterloo-London (LON) flight deals.

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Provider most trusted by Cheapflights users for Waterloo-London (LON) flights.

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From Waterloo to London (LON)

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Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

WaterlooLondon

ALO Waterloo - LHR London Heathrow

ALOLHR

Waterloo

Tue 10/13

6:07 am-8:05 am

1 stop19h 58m

London Heathrow

Tue 10/20

12:15 pm-11:51 pm

1 stop17h 36m

$912

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

Mon 9/28

3:29 pm-12:15 pm

1 stop14h 46m

London Heathrow

Mon 10/5

2:45 pm-11:51 pm

1 stop15h 06m

$958

WaterlooLondon

ALO Waterloo - LHR London Heathrow

ALOLHR

Waterloo

Thu 10/15

6:07 am-6:50 am

1 stop18h 43m

London Heathrow

Thu 10/22

2:45 pm-11:51 pm

1 stop15h 06m

$962

Quickest round-trip

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

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

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/29

Sorted by cheapest first

Most accurate provider: When it comes to deals on Waterloo, Iowa-London flights, users find the pricing of Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Waterloo, Iowa-London flight deals on Cheapflights vs. Ovago >95% of the time. Price accuracy is based on data collected from Waterloo, Iowa-London flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Waterloo, Iowa-London flights, Cheapflights users trust Ovago the most. Ovago has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Waterloo, Iowa-London flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

ALO-LON

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.

Cheapflights Insights

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

ALO-LON

ALO-LHR

No data available for this route at this time. Please check back soon.

Related info for your journey

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 19h 58m. 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.

See more FAQs

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$912+ 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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Waterloo to London with Cheapflights

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Cheap flight deals from Waterloo to London

Cheapest flights from Waterloo to LondonExplore the most affordable flight options available from Waterloo to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 2, 2026.

Explore the most affordable flight options available from Waterloo to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 2, 2026.

Best flights from Waterloo to LondonDiscover 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 September 2, 2026.

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 September 2, 2026.

Last-minute flights from Waterloo to LondonDiscover last-minute flight deals from Waterloo to London. Data last updated September 2, 2026 and is based on user searches.

Discover last-minute flight deals from Waterloo to London. Data last updated September 2, 2026 and is based on user searches.

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Use the filters below to find and compare flights from Waterloo to London that are best for you.

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.

Cheapflights Insights

Related info for your journey

What airport do you fly from for flights from Waterloo to London?

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

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

How can I find direct flights from Waterloo to London?

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

Traveling to a place near London?

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Complete your trip

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Search flights from Waterloo to London by cabin class

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Other flights to London

Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 2, 2026.

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Cheapest flights from Waterloo to London
Explore the most affordable flight options available from Waterloo to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 2, 2026.

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 September 2, 2026.

Last-minute flights from Waterloo to London
Discover last-minute flight deals from Waterloo to London. Data last updated September 2, 2026 and is based on user searches.