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$336+ Cheap flights from Monroe to San Diego (MLU - SAN)

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 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
MLU — SAN
May 21 — May 281
Thu 5/21
Thu 5/28
1 adult, Economy
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Cheap flight deals from Monroe to San Diego

Cheapest flights from Monroe to San Diego
Explore the most affordable flight options available from Monroe to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 21, 2026.

This American Airlines deal was found by Cheapflights users on 4/20. 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.
Fri 7/36:47 pm
MLU
-
SAN
1 stop5h 50m
American Airlines
Tue 7/74:33 pm
SAN
-
MLU
1 stop5h 24m
American Airlines
Deal found 4/20$336
This American Airlines deal was found by Cheapflights users on 4/16. 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.
Fri 5/1512:47 pm
MLU
-
SAN
2 stops11h 08m
American Airlines
Wed 5/207:20 pm
SAN
-
MLU
2 stops12h 28m
American Airlines
Deal found 4/16$425
This Delta deal was found by Cheapflights users on 4/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/812:50 pm
MLU
-
SAN
1 stop8h 33m
Delta
Sun 5/1012:41 pm
SAN
-
MLU
1 stop7h 17m
Delta
Deal found 4/19$438
This American Airlines deal was found by Cheapflights users on 4/19. 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.
Fri 5/812:47 pm
MLU
-
SAN
1 stop7h 18m
American Airlines
Sun 5/106:30 am
SAN
-
MLU
2 stops9h 39m
American Airlines
Deal found 4/19$478
This American Airlines deal was found by Cheapflights users on 4/20. 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 6/111:42 pm
MLU
-
SAN
1 stop6h 09m
American Airlines
Thu 6/183:10 pm
SAN
-
MLU
1 stop6h 48m
American Airlines
Deal found 4/20$504
This American Airlines deal was found by Cheapflights users on 4/19. 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.
Sun 5/176:39 pm
MLU
-
SAN
1 stop7h 17m
American Airlines
Sun 5/248:05 am
SAN
-
MLU
1 stop8h 13m
American Airlines
Deal found 4/19$676

Find flight deals from Monroe to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Monroe (MLU) to San Diego (SAN). 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 April 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$336
(American Airlines)
Provider with most accurate pricing for Monroe Huenefeld-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Monroe Huenefeld-San Diego flights.
Search Deals
From Monroe Huenefeld to San Diego
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Monroe to San Diego 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 April 21, 2026.
Use the filters below to find and compare flights from Monroe to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MonroeSan Diego

MLU - SAN

MLUSAN

Monroe Huenefeld

Fri 5/15

12:47 pm-9:55 pm

2 stops11h 08m

San Diego

Wed 5/20

7:20 pm-9:48 am

2 stops12h 28m

$425

MonroeSan Diego

MLU - SAN

MLUSAN

Monroe Huenefeld

Fri 5/8

12:50 pm-7:23 pm

1 stop8h 33m

San Diego

Sun 5/10

12:41 pm-9:58 pm

1 stop7h 17m

$438

MonroeSan Diego

MLU - SAN

MLUSAN

Monroe Huenefeld

Fri 5/8

12:47 pm-6:05 pm

1 stop7h 18m

San Diego

Sun 5/10

6:30 am-6:09 pm

2 stops9h 39m

$478

MonroeSan Diego

MLU - SAN

MLUSAN

Monroe Huenefeld

Thu 6/11

1:42 pm-9:34 pm

2 stops9h 52m

San Diego

Thu 6/18

12:45 pm-11:58 pm

2 stops9h 13m

$552

MonroeSan Diego

MLU - SAN

MLUSAN

Monroe Huenefeld

Sun 5/17

6:39 pm-11:56 pm

1 stop7h 17m

San Diego

Sun 5/24

8:05 am-6:18 pm

1 stop8h 13m

$676
Quickest round-trip

MonroeSan Diego

MLU - SAN

MLUSAN

Monroe Huenefeld

Sun 5/3

6:00 am-10:09 am

1 stop6h 09m

San Diego

Thu 5/7

2:04 pm-10:33 pm

1 stop6h 29m

$902

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Sorted by cheapest first

Compare providers for flights from Monroe to San Diego

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Monroe to San Diego in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

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

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

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated April 21, 2026.
Read reviews from past customers who have flown Delta and American Airlines from Monroe to San Diego. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,434 reviews

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.2

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
7.9
Good
8,434 reviews
Delta
7.9
Good
8,434 reviews

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.2

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.1
Good
11,645 reviews
Delta
7.9
Good
8,434 reviews

Crew

8.5

Boarding

8.1

Comfort

7.9

Food

7.2

Entertainment

7.8

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Monroe to San Diego. 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 Monroe to San Diego?

    There are many flights that can get you from Monroe to San Diego in 8h 33m. Fly via American Airlines or Delta to get the fastest option. There are 1459 mi between Monroe and San Diego. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Monroe to San Diego round-trip?

    Currently priced at $278, American Airlines will fly you from Monroe to San Diego and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Delta for as low as $278.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Monroe to San Diego 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

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove

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Top 2 airlines flying from Monroe to San Diego

Discover the top 2 airlines that operate flights from Monroe to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$278Average$495FlexibilityNo cancel feeOn-time71%
DeltaCheapest$278Average$408FlexibilityNo cancel feeOn-timeN/A

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