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Waterloo

$449+ Cheap flights from San Diego to Waterloo, IA (SAN - ALO)

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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ALO
Aug 30 — Sep 61
Sun 8/30
Sun 9/6
1 adult, Economy
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Cheap flight deals from San Diego to Waterloo

Cheapest flights from San Diego to Waterloo
Explore the most affordable flight options available from San Diego to Waterloo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 31, 2026.

This American Airlines deal was found by Cheapflights users on 7/26. 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 8/257:24 am
SAN
-
ALO
1 stop14h 58m
American Airlines
Tue 9/15:00 am
ALO
-
SAN
1 stop16h 19m
American Airlines
Deal found 7/26$449
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Mon 8/176:15 am
SAN
-
ALO
1 stop6h 37m
American Airlines
Wed 8/195:00 am
ALO
-
SAN
1 stop20h 47m
American Airlines
Deal found 7/29$1,403
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Mon 8/176:15 am
SAN
-
ALO
1 stop6h 37m
American Airlines
Thu 8/203:23 pm
ALO
-
SAN
1 stop10h 24m
American Airlines
Deal found 7/29$1,410

Find flight deals from San Diego to Waterloo

Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) to Waterloo (ALO). 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 July 31, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$449
(American Airlines)
Provider with most accurate pricing for San Diego-Waterloo flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-Waterloo flights.
Search Deals
From San Diego to Waterloo
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Cheapflights Fare Finder

 
Customize your flight search to find flights from San Diego to Waterloo 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 July 31, 2026.
Use the filters below to find and compare flights from San Diego to Waterloo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

San DiegoWaterloo

SAN - ALO

SANALO

San Diego

Tue 8/25

7:15 am-12:22 am

2 stops15h 07m

Waterloo

Tue 9/1

5:00 am-9:22 pm

1 stop18h 22m

$504

San DiegoWaterloo

SAN - ALO

SANALO

San Diego

Mon 8/17

2:23 pm-12:22 am

2 stops31h 59m

Waterloo

Wed 8/19

3:23 pm-11:47 pm

1 stop10h 24m

$1,465

San DiegoWaterloo

SAN - ALO

SANALO

San Diego

Mon 8/17

3:05 pm-12:22 am

2 stops31h 17m

Waterloo

Thu 8/20

3:23 pm-11:47 pm

1 stop10h 24m

$1,472
Cheapest one-way

San DiegoWaterloo

SAN - ALO

SANALO

San Diego

Thu 8/13

6:25 am-2:52 pm

2 stops30h 27m

$478

San DiegoWaterloo

SAN - ALO

SANALO

San Diego

Wed 8/5

6:15 am-12:22 am

1 stop16h 07m

$503

San DiegoWaterloo

SAN - ALO

SANALO

San Diego

Tue 8/4

11:07 am-2:52 pm

2 stops25h 45m

$513

San DiegoWaterloo

SAN - ALO

SANALO

San Diego

Sun 8/9

6:15 am-12:22 am

1 stop16h 07m

$526

San DiegoWaterloo

SAN - ALO

SANALO

San Diego

Thu 8/6

9:48 am-2:52 pm

1 stop27h 04m

$526
Quickest one-way

San DiegoWaterloo

SAN - ALO

SANALO

San Diego

Sat 8/15

10:45 pm-2:52 pm

1 stop14h 07m

$664

San DiegoWaterloo

SAN - ALO

SANALO

San Diego

Tue 8/18

10:59 am-2:52 pm

2 stops25h 53m

$673

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 12 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on San Diego-Waterloo, Iowa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Diego-Waterloo, Iowa flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Waterloo, Iowa flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Diego-Waterloo, Iowa flights, Cheapflights users trust FlightHub the most. FlightHub 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 San Diego-Waterloo, Iowa 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 San Diego to Waterloo

Have a flexible travel schedule? Discover the best time to fly to Waterloo from San Diego 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.

Related info for your journey

Find useful and relevant information for your journey from San Diego to Waterloo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    For as low as $504, American Airlines can have you in Waterloo, Iowa from San Diego in 15h 07m. There are 1508 mi between San Diego and Waterloo, Iowa.

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

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

  • How can I find direct flights from San Diego to Waterloo?

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

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

    Yes. Cheapflights offers flight deals from San Diego to Waterloo 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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