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Cheap flights from Waterloo, Iowa to London from $658

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Waterloo, Iowa to London departing on 7/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Waterloo, Iowa to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
5:06 am - 8:05 am
ALO
-
LHR
20h 59m
1 stop
American Airlines Logo
9:45 am - 12:22 am
LHR
-
ALO
20h 37m
1 stop
$1,129American Airlines
Mon, Aug 3 - Mon, Aug 10
American Airlines Logo
5:06 am - 8:05 am
ALO
-
LHR
20h 59m
1 stop
American Airlines Logo
3:00 pm - 12:22 am
LHR
-
ALO
15h 22m
2 stops
$1,134American Airlines
Mon, Aug 3 - Mon, Aug 10
Multiple Airlines Logo
5:06 am - 11:15 am
ALO
-
LHR
24h 09m
1 stop
Multiple Airlines Logo
3:15 pm - 12:29 am
LHR
-
ALO
15h 14m
1 stop
$1,258Multiple Airlines
Fri, Jul 17 - Fri, Jul 24
American Airlines Logo
3:25 pm - 9:05 am
ALO
-
LHR
11h 40m
1 stop
American Airlines Logo
2:25 pm - 12:22 am
LHR
-
ALO
15h 57m
1 stop
$1,259American Airlines
Sun, Aug 2 - Sun, Aug 9
American Airlines Logo
5:06 am - 9:05 am
ALO
-
LHR
21h 59m
1 stop
American Airlines Logo
12:15 pm - 12:29 am
LHR
-
ALO
18h 14m
1 stop
$1,263American Airlines
Fri, Jul 17 - Fri, Jul 24
British Airways Logo
3:23 pm - 2:20 pm
ALO
-
LHR
16h 57m
2 stops
British Airways Logo
3:00 pm - 12:22 am
LHR
-
ALO
15h 22m
2 stops
$1,335British Airways
Mon, Aug 3 - Mon, Aug 10
American Airlines Logo
3:25 pm - 8:05 am
ALO
-
LHR
10h 40m
1 stop
American Airlines Logo
3:00 pm - 12:22 am
LHR
-
ALO
15h 22m
2 stops
$1,419American Airlines
Sun, Aug 2 - Sun, Aug 9
Multiple Airlines Logo
3:26 pm - 8:05 am
ALO
-
LHR
10h 39m
1 stop
Multiple Airlines Logo
9:50 am - 12:29 am
LHR
-
ALO
20h 39m
2 stops
$1,541Multiple Airlines
Fri, Jul 17 - Fri, Jul 24

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American Airlines flights from Waterloo, Iowa to London

Our best American Airlines deals on Waterloo, Iowa to London flight tickets
American Airlines
Aug 3
ALO5:06 amWaterloo
20h 59m
1 stop
LHR8:05 amLondon Heathrow
Aug 10
LHR9:45 amLondon Heathrow
20h 37m
1 stop
ALO12:22 amWaterloo
$1,129
American Airlines
Aug 3
ALO5:06 amWaterloo
20h 59m
1 stop
LHR8:05 amLondon Heathrow
Aug 10
LHR3:00 pmLondon Heathrow
15h 22m
2 stops
ALO12:22 amWaterloo
$1,134
American Airlines
Aug 2
ALO3:25 pmWaterloo
11h 40m
1 stop
LHR9:05 amLondon Heathrow
Aug 9
LHR2:25 pmLondon Heathrow
15h 57m
1 stop
ALO12:22 amWaterloo
$1,259

momondo Fare Finder

 
Customize your flight search to find flights from Waterloo, Iowa 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, momondo users made 832,500 searches. Data last updated June 23, 2026.
Use the filters below to find and compare flights from Waterloo, Iowa to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Mon 8/3

5:06 am-8:05 am

1 stop20h 59m

London Heathrow

Mon 8/10

9:45 am-12:22 am

1 stop20h 37m

$1,129

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Mon 8/3

5:06 am-8:05 am

1 stop20h 59m

London Heathrow

Mon 8/10

3:00 pm-12:22 am

2 stops15h 22m

$1,134

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Fri 7/17

5:06 am-11:15 am

1 stop24h 09m

London Heathrow

Fri 7/24

3:15 pm-12:29 am

1 stop15h 14m

$1,258

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Sun 8/2

3:25 pm-9:05 am

1 stop11h 40m

London Heathrow

Sun 8/9

2:25 pm-12:22 am

1 stop15h 57m

$1,259

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Fri 7/17

5:06 am-9:05 am

1 stop21h 59m

London Heathrow

Fri 7/24

12:15 pm-12:29 am

1 stop18h 14m

$1,263

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Mon 8/3

3:23 pm-2:20 pm

2 stops16h 57m

London Heathrow

Mon 8/10

3:00 pm-12:22 am

2 stops15h 22m

$1,335
Quickest round-trip

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Sun 8/2

3:25 pm-8:05 am

1 stop10h 40m

London Heathrow

Sun 8/9

3:00 pm-12:22 am

2 stops15h 22m

$1,419

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Fri 7/17

3:26 pm-8:05 am

1 stop10h 39m

London Heathrow

Fri 7/24

9:50 am-12:29 am

2 stops20h 39m

$1,541
Cheapest one-way

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Sun 7/5

5:06 am-8:05 am

1 stop20h 59m

$658
Quickest one-way

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Sun 7/5

3:25 pm-4:00 pm

2 stops18h 35m

$780

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to London from

How to get the cheapest flight ticket from Waterloo, Iowa to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Waterloo to London?

American Airlines and British Airways are the most popular carriers operating from Waterloo to London

What airlines fly to London?

United Airlines, British Airways and American Airlines are the top three most popular airlines that fly to London from Waterloo, Iowa according to our data. United Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to London. Keep in mind that there are 4 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

When to book flights from Waterloo, Iowa to London

Are you open to changing your travel dates? Check out the ideal times to fly from Waterloo, Iowa to London according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Waterloo, Iowa to London (ALO to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Waterloo, Iowa to London

Fastest flight time

19h 50m

Direct flights

None
The fastest flight from Waterloo, Iowa to London takes 19h 50m
There are no direct flights from Waterloo, Iowa to London. There are no popular flight routes from Waterloo, Iowa to London.
Search flight deals

Frequently asked questions about flying from Waterloo, Iowa to London

  • How far is Waterloo to London by plane?

    The distance between Waterloo and London is about 4092.8 mi. Typically, this will take 19h 50m by plane in normal conditions.

  • When did momondo last update prices for flights from Waterloo Airport to London?

    Prices for flights from Waterloo Airport to London refresh daily.

  • How old do you have to be to fly from Waterloo Airport to London?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Waterloo Airport to London.

  • What documentation or ID do you need to fly to London?

    The travel and health documents required for your trip to London can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Milton Keynes
Luton
Hayes
Dover
Crawley
Croydon
Wembley
Stansted
Harrow
Slough
Watford
Cobham
Brentwood
Guildford
Ilford
Folkestone
Uxbridge
Romford

Why use momondo?

Why should I use momondo to find a flight deal from Waterloo to London?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from Waterloo.

Can I find flights from Waterloo to London with flexible booking policies on momondo?

Flights from Waterloo to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Waterloo to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Waterloo.

I’m not ready to book a flight from Waterloo to London right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Waterloo to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport