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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
4:30 pm - 11:15 am
ALO
-
LHR
12h 45m
1 stop
American Airlines Logo
12:35 pm - 11:19 pm
LHR
-
ALO
15h 44m
1 stop
$898American Airlines
Wed, Oct 21 - Thu, Oct 29
American Airlines Logo
6:04 am - 9:05 am
ALO
-
LHR
21h 01m
1 stop
American Airlines Logo
1:10 pm - 11:19 pm
LHR
-
ALO
15h 09m
2 stops
$902American Airlines
Wed, Oct 21 - Thu, Oct 29
American Airlines Logo
4:30 pm - 11:35 am
ALO
-
LHR
13h 05m
2 stops
American Airlines Logo
1:10 pm - 11:19 pm
LHR
-
ALO
15h 09m
2 stops
$907American Airlines
Wed, Oct 21 - Thu, Oct 29
American Airlines Logo
5:00 am - 6:50 am
ALO
-
LHR
19h 50m
1 stop
American Airlines Logo
2:25 pm - 12:22 am
LHR
-
ALO
15h 57m
1 stop
$1,033American Airlines
Fri, Aug 7 - Fri, Aug 14
American Airlines Logo
3:23 pm - 12:15 pm
ALO
-
LHR
14h 52m
1 stop
American Airlines Logo
3:00 pm - 12:22 am
LHR
-
ALO
15h 22m
2 stops
$1,038American Airlines
Fri, Aug 7 - Fri, Aug 14
American Airlines Logo
3:23 pm - 11:35 am
ALO
-
LHR
14h 12m
2 stops
American Airlines Logo
3:00 pm - 12:22 am
LHR
-
ALO
15h 22m
2 stops
$1,222American Airlines
Fri, Aug 7 - Fri, Aug 14

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American Airlines flights from Waterloo, Iowa to London Heathrow Airport

Our best American Airlines deals on Waterloo, Iowa to London Heathrow Airport flight tickets
American Airlines
Oct 21
ALO4:30 pmWaterloo
12h 45m
1 stop
LHR11:15 amLondon Heathrow
Oct 29
LHR12:35 pmLondon Heathrow
15h 44m
1 stop
ALO11:19 pmWaterloo
$898
American Airlines
Oct 21
ALO6:04 amWaterloo
21h 01m
1 stop
LHR9:05 amLondon Heathrow
Oct 29
LHR1:10 pmLondon Heathrow
15h 09m
2 stops
ALO11:19 pmWaterloo
$902
American Airlines
Oct 21
ALO4:30 pmWaterloo
13h 05m
2 stops
LHR11:35 amLondon Heathrow
Oct 29
LHR1:10 pmLondon Heathrow
15h 09m
2 stops
ALO11:19 pmWaterloo
$907

momondo Fare Finder

 
Customize your flight search to find flights from Waterloo, Iowa to London Heathrow Airport 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 25, 2026.
Use the filters below to find and compare flights from Waterloo, Iowa to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Wed 10/21

4:30 pm-11:15 am

1 stop12h 45m

London Heathrow

Thu 10/29

12:35 pm-11:19 pm

1 stop15h 44m

$898

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Wed 10/21

6:04 am-9:05 am

1 stop21h 01m

London Heathrow

Thu 10/29

1:10 pm-11:19 pm

2 stops15h 09m

$902
Quickest round-trip

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Wed 10/21

4:30 pm-11:35 am

2 stops13h 05m

London Heathrow

Thu 10/29

1:10 pm-11:19 pm

2 stops15h 09m

$907

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Fri 8/7

5:00 am-6:50 am

1 stop19h 50m

London Heathrow

Fri 8/14

2:25 pm-12:22 am

1 stop15h 57m

$1,033

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Fri 8/7

3:23 pm-12:15 pm

1 stop14h 52m

London Heathrow

Fri 8/14

3:00 pm-12:22 am

2 stops15h 22m

$1,038

WaterlooLondon

ALO - LHR

ALOLHR

Waterloo

Fri 8/7

3:23 pm-11:35 am

2 stops14h 12m

London Heathrow

Fri 8/14

3:00 pm-12:22 am

2 stops15h 22m

$1,222
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 Heathrow Airport

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 Heathrow?

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

What airlines fly to London Heathrow Airport?

United Airlines, British Airways and American Airlines are the top three most popular airlines that fly to London Heathrow Airport 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 Heathrow Airport. Keep in mind that there are 4 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

When to book flights from Waterloo, Iowa to London Heathrow Airport

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

Cheap Waterloo, Iowa to London Heathrow Airport (ALO to LHR) flight deals and tips

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

Fastest flight time

12h 45m

Direct flights

None
The fastest flight from Waterloo, Iowa to London Heathrow Airport takes 12h 45m
There are no direct flights from Waterloo, Iowa to London Heathrow Airport. There are no popular flight routes from Waterloo, Iowa to London Heathrow Airport.
Search flight deals

Frequently asked questions about flying from Waterloo, Iowa to London Heathrow Airport

  • How far is Waterloo to London Heathrow by plane?

    London Heathrow is 4081.6 mi away from Waterloo. By plane, this route typically takes 12h 45m.

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

    Prices for flights from Waterloo Airport to London Heathrow Airport refresh daily.

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

    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 Heathrow Airport.

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

    The travel and health documents required for your trip to London Heathrow Airport 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 Heathrow Airport. 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
Stratford-upon-Avon
Harrow
Slough
Watford
Cobham
Brentwood
Guildford
Ilford
Folkestone
Uxbridge

Why use momondo?

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

It is quick and easy to find Waterloo to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

Yes. All flights to London from Waterloo on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo provides multiple filters to help you find the best flight to London from Waterloo. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to London from Waterloo are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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