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$183+ Cheap flights from Harrisburg to San Diego (MDT - SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — SAN
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Harrisburg to San Diego are usually found in July or May, booked 69 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Harrisburg to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Harrisburg (MDT) 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 September 11, 2025.

Round-trip from

$309
(American Airlines)

One-way from

$183
(Kiwi.com)

Popular in

September

Cheapest in

July

Average price

$560
From Harrisburg to San Diego
Search Deals
One-way flight from Harrisburg to San Diego
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Highest demand for flights based on searches. 1% potential increase in price ($9 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Harrisburg to San Diego

Cheapest flights from Harrisburg to San Diego
Explore the most affordable flight options available from Harrisburg to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This American Airlines deal was found by Cheapflights users on 9/10. 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 11/52:55 pmMDT - SAN
1 stop9h 49mAmerican Airlines
Tue 11/1112:43 pmSAN - MDT
1 stop7h 13mAmerican Airlines
Deal found 9/10$309
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/236:30 amMDT - SAN
1 stop8h 10mUnited Airlines
Sun 10/268:40 pmSAN - MDT
2 stops9h 55mUnited Airlines
Deal found 9/11$314
This American Airlines deal was found by Cheapflights users on 9/10. 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 10/16:00 amMDT - SAN
1 stop9h 27mAmerican Airlines
Mon 10/610:45 pmSAN - MDT
1 stop9h 55mAmerican Airlines
Deal found 9/10$334
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/132:35 pmMDT - SAN
2 stops10h 54mUnited Airlines
Tue 11/1810:51 amSAN - MDT
1 stop7h 13mUnited Airlines
Deal found 9/9$341
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:30 amMDT - SAN
1 stop8h 10mUnited Airlines
Sat 10/1810:30 pmSAN - MDT
1 stop8h 44mUnited Airlines
Deal found 9/10$353
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/266:15 amMDT - SAN
1 stop8h 09mUnited Airlines
Tue 9/306:48 amSAN - MDT
1 stop7h 04mUnited Airlines
Deal found 9/10$369
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/266:15 amMDT - SAN
1 stop8h 09mUnited Airlines
Mon 9/298:08 pmSAN - MDT
2 stops10h 21mUnited Airlines
Deal found 9/10$374
This Delta deal was found by Cheapflights users on 9/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/412:41 pmMDT - SAN
1 stop8h 39mDelta
Sun 12/711:30 amSAN - MDT
1 stop8h 37mDelta
Deal found 9/11$384
This American Airlines deal was found by Cheapflights users on 9/10. 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 10/153:07 pmMDT - SAN
1 stop7h 17mAmerican Airlines
Sun 10/1910:45 pmSAN - MDT
1 stop8h 11mAmerican Airlines
Deal found 9/10$394
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 12/245:00 amMDT - SAN
1 stop9h 05mAmerican Airlines
Thu 1/11:13 pmSAN - MDT
1 stop7h 46mAmerican Airlines
Deal found 9/11$400
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/110:25 amMDT - SAN
1 stop7h 36mUnited Airlines
Sat 10/188:08 pmSAN - MDT
2 stops10h 21mUnited Airlines
Deal found 9/10$406

Cheapflights Fare Finder

 
Customize your flight search to find flights from Harrisburg 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 September 11, 2025.
Use the filters below to find and compare flights from Harrisburg to San Diego that are best for you.

Fly from

Harrisburg

Fly to

San Diego

Route

Depart

Return

Price

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Tue 11/4

6:30 am-11:31 am

1 stop8h 01m

San Diego

Sun 11/9

8:40 pm-9:35 am

2 stops9h 55m

$314

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Thu 10/23

11:25 am-6:47 pm

1 stop10h 22m

San Diego

Sun 10/26

10:45 pm-9:56 am

1 stop8h 11m

$334

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Wed 10/1

6:00 am-12:27 pm

1 stop9h 27m

San Diego

Sat 10/18

12:18 pm-11:13 pm

1 stop7h 55m

$334

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Thu 11/13

2:35 pm-10:29 pm

2 stops10h 54m

San Diego

Tue 11/18

10:51 am-9:04 pm

1 stop7h 13m

$341

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Wed 10/15

6:30 am-11:40 am

1 stop8h 10m

San Diego

Sat 10/18

10:30 pm-10:14 am

1 stop8h 44m

$353

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Wed 12/24

5:00 am-11:05 am

1 stop9h 05m

San Diego

Thu 1/1

1:13 pm-11:59 pm

1 stop7h 46m

$400

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Mon 11/24

5:34 pm-10:20 pm

1 stop7h 46m

San Diego

Sun 11/30

10:30 pm-10:06 am

1 stop8h 36m

$409

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Thu 10/16

5:48 pm-10:14 pm

1 stop7h 26m

San Diego

Mon 10/20

10:30 pm-10:14 am

1 stop8h 44m

$409

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Sat 2/21

6:48 am-11:25 am

1 stop7h 37m

San Diego

Tue 2/24

8:49 am-10:08 pm

2 stops10h 19m

$414

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Wed 11/5

10:47 am-7:52 pm

2 stops12h 05m

San Diego

Tue 11/11

10:30 pm-10:06 am

1 stop8h 36m

$414

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 17 results
1
2

Best time to book a flight from Harrisburg to San Diego

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

How far ahead should I book a flight from Harrisburg to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Harrisburg to San Diego. Price data was last updated on August 29, 2025.

To ensure you get the cheapest price possible for a flight from Harrisburg to San Diego, you should look to book at least 69 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Harrisburg to San Diego?

Currently, August is the cheapest month in which you can book a flight from Harrisburg to San Diego (average of $286). Flying from Harrisburg to San Diego in March is currently the most expensive (average of $366). 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.

What is the cheapest time of day to fly from MDT to SAN?

Find hourly flight availability from Harrisburg to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 14% on flights from Harrisburg to San Diego by exploring options for tickets at noon.

How much does it cost to fly round-trip from Harrisburg to San Diego?

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 September 11, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Harrisburg to San Diego have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

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
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

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
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

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
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

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 Harrisburg 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 Harrisburg to San Diego?

    United Airlines and American Airlines can get you from Harrisburg to San Diego in just under 8h 01m. Your travel time can differ by up to 2h 21m. Harrisburg and San Diego are separated by a distance of 2283 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Flying on Delta is currently your cheapest option to San Diego, with prices starting at $308. Additional round-trip tickets that might be worth considering are offered by American Airlines and United Airlines, with the lowest prices starting at $308 and $308, respectively. Delta is currently priced 32% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Harrisburg to San Diego one-way?

    One-way options have recently been found by users for as low as $183 on Frontier. Other airlines that offer cheap prices include United Airlines from $218 and American Airlines from $218 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Harrisburg 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.

  • What is the cheapest month to book a flight from Harrisburg to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Harrisburg to San Diego (average of $286). Flying from Harrisburg to San Diego in March is currently the most expensive (average of $366). 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 San Diego?

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

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Top 3 airlines flying from Harrisburg to San Diego

Discover the top 3 airlines that operate flights from Harrisburg 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$308Average$392FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$308Average$474FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$308Average$456FlexibilityNo cancel feeOn-time71%

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