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$167+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — SAN
Aug 6 — Aug 131
Wed 8/6
Wed 8/13
1 adult, Economy
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Cheapflights Tip: The best prices from Harrisburg to San Diego are usually found in May or July, 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 August 1, 2025.

Round-trip from

$309
(American Airlines)

One-way from

$167
(Delta)

Popular in

September

Cheapest in

May

Average price

$480
From Harrisburg to San Diego
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One-way flight from Harrisburg to San Diego
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Highest demand for flights based on searches. 4% potential increase in price ($21 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 1, 2025.

This American Airlines deal was found by Cheapflights users on 7/30. 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 8/296:26 pmMDT - SAN
1 stop7h 57mAmerican Airlines
Tue 9/210:45 pmSAN - MDT
1 stop8h 28mAmerican Airlines
Deal found 7/30$309
This Delta deal was found by Cheapflights users on 7/31. 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.
Tue 8/266:00 amMDT - SAN
2 stops15h 01mDelta
Tue 9/96:57 pmSAN - MDT
2 stops12h 57mDelta
Deal found 7/31$319
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Tue 10/76:30 amMDT - SAN
1 stop8h 10mUnited Airlines
Mon 10/1310:15 pmSAN - MDT
1 stop8h 14mUnited Airlines
Deal found 7/31$339
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/511:42 amMDT - SAN
2 stops11h 56mAlaska Airlines
Tue 11/1110:56 amSAN - MDT
3 stops20h 47mAlaska Airlines
Deal found 7/31$424
This Mytrip deal was found by Cheapflights users on 7/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/79:19 pmMDT - SAN
3 stops39h 36mMultiple Airlines
Sun 8/109:40 pmSAN - MDT
2 stops19h 21mMultiple Airlines
Deal found 7/30$633

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 August 1, 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

Fri 8/29

6:26 pm-11:23 pm

1 stop7h 57m

San Diego

Tue 9/2

10:45 pm-10:13 am

1 stop8h 28m

$309

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Tue 8/26

6:00 am-6:01 pm

2 stops15h 01m

San Diego

Tue 9/9

6:57 pm-10:54 am

2 stops12h 57m

$319

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Tue 10/7

6:30 am-11:40 am

1 stop8h 10m

San Diego

Mon 10/13

10:15 pm-9:29 am

1 stop8h 14m

$339

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Wed 11/5

11:42 am-8:38 pm

2 stops11h 56m

San Diego

Tue 11/11

10:56 am-10:43 am

3 stops20h 47m

$424

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Tue 9/9

12:33 pm-6:04 pm

1 stop8h 31m

$167

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Thu 8/14

11:06 am-7:21 am

2 stops23h 15m

$199

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Thu 9/11

6:45 am-1:40 pm

2 stops9h 55m

$218

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Thu 9/11

3:35 pm-8:29 pm

1 stop7h 54m

$291

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

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 July 25, 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 August 1, 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.

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 August 1, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and United 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Entertainment

7.1

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    Flying on American Airlines is currently your cheapest option to San Diego, with prices starting at $309. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $319 and $339, respectively. American Airlines is currently priced 33% 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 $167 on Delta. Other airlines that offer cheap prices include United Airlines from $218 and American Airlines from $291 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
Coronado
Poway
National City
Lemon Grove
Imperial Beach
La Mesa
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 August 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$308Average$399FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$308Average$471FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$308Average$464FlexibilityNo cancel feeOn-time71%

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