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$297+ Cheap flights from Harrisburg to San Diego (MDT - 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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — SAN
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Find cheap flights from Harrisburg to San Diego with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheapflights Tip: The best prices from Harrisburg to San Diego are usually found in August 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

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 December 15, 2025.

This Delta deal was found by Cheapflights users on 12/12. 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.
Sat 12/136:00 amMDT - SAN
1 stop10h 02mDelta
Wed 12/178:00 amSAN - MDT
1 stop7h 32mDelta
Deal found 12/12$469
This Delta deal was found by Cheapflights users on 12/12. 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 12/251:34 pmMDT - SAN
1 stop8h 07mDelta
Wed 12/3112:40 pmSAN - MDT
1 stop7h 22mDelta
Deal found 12/12$479
This Delta deal was found by Cheapflights users on 12/13. 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 12/166:00 amMDT - SAN
1 stop7h 26mDelta
Sun 12/2112:40 pmSAN - MDT
1 stop7h 22mDelta
Deal found 12/13$503
This United Airlines deal was found by Cheapflights users on 12/12. 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 12/256:15 amMDT - SAN
1 stop8h 30mUnited Airlines
Wed 12/319:00 amSAN - MDT
2 stops12h 07mUnited Airlines
Deal found 12/12$506
This American Airlines deal was found by Cheapflights users on 12/13. 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 12/241:52 pmMDT - SAN
1 stop8h 01mAmerican Airlines
Thu 1/110:48 pmSAN - MDT
1 stop7h 22mAmerican Airlines
Deal found 12/13$513
This Delta deal was found by Cheapflights users on 12/13. 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.
Sun 12/211:34 pmMDT - SAN
1 stop8h 09mDelta
Fri 12/2611:25 amSAN - MDT
1 stop9h 11mDelta
Deal found 12/13$518
This American Airlines deal was found by Cheapflights users on 12/13. 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 12/235:00 amMDT - SAN
1 stop10h 23mAmerican Airlines
Sat 12/271:36 pmSAN - MDT
1 stop7h 43mAmerican Airlines
Deal found 12/13$531
This American Airlines deal was found by Cheapflights users on 12/13. 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 12/256:16 amMDT - SAN
1 stop9h 37mAmerican Airlines
Wed 12/316:20 amSAN - MDT
1 stop9h 47mAmerican Airlines
Deal found 12/13$534
This United Airlines deal was found by Cheapflights users on 12/13. 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.
Sun 12/213:15 pmMDT - SAN
1 stop10h 36mUnited Airlines
Fri 12/2610:30 pmSAN - MDT
1 stop8h 43mUnited Airlines
Deal found 12/13$537

Find 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 December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$297
(United Airlines)

Popular in

March

Cheapest in

August

Average price

$468
Provider with most accurate pricing for Harrisburg-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Harrisburg-San Diego flights.
Search Deals
From Harrisburg to San Diego
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($45 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 15, 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 1/20

6:10 am-10:33 am

1 stop7h 23m

San Diego

Sat 1/24

11:43 am-10:56 pm

1 stop8h 13m

$297

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Wed 1/21

2:28 pm-8:47 pm

1 stop9h 19m

San Diego

Sat 1/24

10:52 am-9:05 pm

1 stop7h 13m

$297

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Wed 1/21

6:46 am-2:14 pm

1 stop10h 28m

San Diego

Sat 1/24

12:40 pm-11:58 pm

1 stop8h 18m

$297

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Thu 1/22

6:10 am-10:33 am

1 stop7h 23m

San Diego

Sat 1/24

11:43 am-10:56 pm

1 stop8h 13m

$313

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Wed 1/21

10:34 am-3:40 pm

1 stop8h 06m

San Diego

Sun 1/25

10:00 pm-9:35 am

1 stop8h 35m

$313

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Fri 1/9

5:05 pm-10:31 pm

1 stop8h 26m

San Diego

Thu 1/15

6:15 am-4:25 pm

1 stop7h 10m

$313

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Tue 1/20

6:10 am-10:33 am

1 stop7h 23m

San Diego

Sun 1/25

6:15 am-3:55 pm

1 stop6h 40m

$313

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Wed 1/21

6:10 am-10:33 am

1 stop7h 23m

San Diego

Sun 1/25

11:43 am-10:56 pm

1 stop8h 13m

$313

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Thu 12/18

9:30 am-11:59 pm

3 stops41h 29m

$386

HarrisburgSan Diego

MDT - SAN

MDTSAN

Harrisburg

Thu 12/18

5:00 am-11:27 am

1 stop9h 27m

$461

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

Showing 1-10 of 15 results
1
2

Compare providers for flights from Harrisburg 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 Harrisburg to San Diego in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 Harrisburg-San Diego flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Harrisburg-San Diego flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Harrisburg-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Harrisburg-San Diego flights, Cheapflights users trust eDreams the most. eDreams 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 Harrisburg-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 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 December 12, 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, November is the cheapest month in which you can book a flight from Harrisburg to San Diego (average of $77). Flying from Harrisburg to San Diego in July is currently the most expensive (average of $248). 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 December 15, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 45% 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 December 15, 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
7.9
Good
8,008 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.3

Entertainment

7.9

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
8,008 reviews
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.3

Entertainment

7.9

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
United Airlines
7.4
Good
9,092 reviews
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.3

Entertainment

7.9

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
7.2
Good
11,051 reviews
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Boarding

8.1

Crew

8.5

Food

7.3

Entertainment

7.9

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 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?

    Delta, United Airlines, and American Airlines can get you from Harrisburg to San Diego in just under 7h 23m. Your travel time can differ by up to 3h 05m. 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 American Airlines 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 United Airlines and Delta, with the lowest prices starting at $308 and $314, respectively. American Airlines is currently priced 28% 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 $207 on American Airlines. Other airlines that offer cheap prices include Delta from $238 and United Airlines from $268 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, November is the cheapest month in which you can book a flight from Harrisburg to San Diego (average of $77). Flying from Harrisburg to San Diego in July is currently the most expensive (average of $248). 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
La Mesa
Poway
Lemon Grove
Julian
National City

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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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$308Average$383FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$308Average$422FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$308Average$443FlexibilityNo cancel feeOn-time71%

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