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$487+ 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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ALO
Apr 11 — Apr 181
Sat 4/11
Sat 4/18
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 March 12, 2026.

This American Airlines deal was found by Cheapflights users on 3/11. 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.
Thu 4/301:03 pm
SAN
-
ALO
1 stop8h 46m
American Airlines
Sun 5/102:23 pm
ALO
-
SAN
1 stop8h 20m
American Airlines
Deal found 3/11$487
This American Airlines deal was found by Cheapflights users on 3/10. 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 8/259:45 am
SAN
-
ALO
2 stops11h 47m
American Airlines
Mon 8/316:00 am
ALO
-
SAN
1 stop8h 15m
American Airlines
Deal found 3/10$492
This American Airlines deal was found by Cheapflights users on 3/10. 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.
Thu 7/96:15 am
SAN
-
ALO
1 stop6h 37m
American Airlines
Sat 7/185:00 am
ALO
-
SAN
2 stops11h 17m
American Airlines
Deal found 3/10$633
This American Airlines deal was found by Cheapflights users on 3/10. 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.
Wed 3/253:19 pm
SAN
-
ALO
1 stop6h 34m
American Airlines
Sun 3/293:10 pm
ALO
-
SAN
1 stop8h 33m
American Airlines
Deal found 3/10$634
This American Airlines deal was found by Cheapflights users on 3/10. 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.
Thu 7/96:15 am
SAN
-
ALO
1 stop6h 37m
American Airlines
Sun 7/195:00 am
ALO
-
SAN
2 stops11h 17m
American Airlines
Deal found 3/10$653
This American Airlines deal was found by Cheapflights users on 3/10. 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.
Thu 7/96:15 am
SAN
-
ALO
1 stop6h 37m
American Airlines
Mon 7/205:00 am
ALO
-
SAN
2 stops11h 17m
American Airlines
Deal found 3/10$681
This American Airlines deal was found by Cheapflights users on 3/10. 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 7/1112:45 pm
SAN
-
ALO
2 stops9h 14m
American Airlines
Sat 7/185:00 am
ALO
-
SAN
2 stops11h 17m
American Airlines
Deal found 3/10$687
This American Airlines deal was found by Cheapflights users on 3/10. 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 7/116:50 am
SAN
-
ALO
2 stops15h 09m
American Airlines
Tue 7/215:00 am
ALO
-
SAN
2 stops8h 48m
American Airlines
Deal found 3/10$688
This American Airlines deal was found by Cheapflights users on 3/10. 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.
Thu 7/96:15 am
SAN
-
ALO
1 stop6h 37m
American Airlines
Tue 7/215:00 am
ALO
-
SAN
1 stop9h 28m
American Airlines
Deal found 3/10$691

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 March 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$487
(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
Search Deals

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 March 12, 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

Thu 4/30

1:03 pm-11:49 pm

1 stop8h 46m

Waterloo

Sun 5/10

2:23 pm-8:43 pm

1 stop8h 20m

$487

San DiegoWaterloo

SAN - ALO

SANALO

San Diego

Wed 3/25

9:53 am-11:53 pm

2 stops12h 00m

Waterloo

Sun 3/29

3:10 pm-8:20 pm

1 stop7h 10m

$639

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

Sorted by cheapest first
  • 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.

Cheapflights Insights

Everything you need to know about your flight from San Diego to Waterloo

What is the cheapest month to book a flight from San Diego to Waterloo, Iowa?

Currently, July is the cheapest month in which you can book a flight from San Diego to Waterloo, Iowa (average of $75). Flying from San Diego to Waterloo, Iowa in February is currently the most expensive (average of $194). 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 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 $487, American Airlines can have you in Waterloo, Iowa from San Diego in 8h 46m. 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.

  • What is the cheapest month to book a flight from San Diego to Waterloo, Iowa?

    Currently, July is the cheapest month in which you can book a flight from San Diego to Waterloo, Iowa (average of $75). Flying from San Diego to Waterloo, Iowa in February is currently the most expensive (average of $194). 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

Traveling to a place near Waterloo?

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