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$145+ Cheap flights from Dayton to San Diego (DAY - 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 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — SAN
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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Cheapflights Tip: The best prices from Dayton to San Diego are usually found in November or October, booked 65 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Dayton to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Dayton (DAY) 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 November 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$289
(United Airlines)

One-way from

$145
(Delta)

Popular in

March

Cheapest in

November

Average price

$343
Provider with most accurate pricing for Dayton-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Dayton-San Diego flights.
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From Dayton to San Diego
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One-way flight from Dayton to San Diego
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Highest demand for flights based on searches. 10% potential increase in price ($48 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Dayton to San Diego

Cheapest flights from Dayton to San Diego
Explore the most affordable flight options available from Dayton to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

This United Airlines deal was found by Cheapflights users on 11/12. 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.
Tue 12/97:15 amDAY - SAN
1 stop7h 15mUnited Airlines
Sun 12/147:00 amSAN - DAY
1 stop6h 51mUnited Airlines
Deal found 11/12$289
This Delta deal was found by Cheapflights users on 11/12. 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 12/1311:19 amDAY - SAN
2 stops14h 36mDelta
Wed 12/1712:24 pmSAN - DAY
1 stop7h 47mDelta
Deal found 11/12$327
This United Airlines deal was found by Cheapflights users on 11/13. 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.
Fri 12/1210:00 amDAY - SAN
1 stop8h 28mUnited Airlines
Sun 12/1411:02 amSAN - DAY
2 stops8h 27mUnited Airlines
Deal found 11/13$340
This American Airlines deal was found by Cheapflights users on 11/13. 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.
Fri 11/288:38 amDAY - SAN
1 stop6h 51mAmerican Airlines
Tue 12/26:15 amSAN - DAY
1 stop9h 26mAmerican Airlines
Deal found 11/13$359
This Delta deal was found by Cheapflights users on 11/12. 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 12/116:34 pmDAY - SAN
2 stops17h 42mDelta
Wed 12/1710:30 pmSAN - DAY
1 stop9h 00mDelta
Deal found 11/12$368
This Delta deal was found by Cheapflights users on 11/13. 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.
Thu 11/206:34 pmDAY - SAN
1 stop8h 09mDelta
Thu 11/278:00 amSAN - DAY
1 stop8h 16mDelta
Deal found 11/13$369
This American Airlines deal was found by Cheapflights users on 11/13. 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 12/186:00 amDAY - SAN
1 stop9h 23mAmerican Airlines
Thu 1/16:15 amSAN - DAY
1 stop7h 31mAmerican Airlines
Deal found 11/13$379
This Alaska Airlines deal was found by Cheapflights users on 11/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:00 amDAY - SAN
2 stops13h 57mAlaska Airlines
Wed 12/171:45 pmSAN - DAY
1 stop6h 24mAlaska Airlines
Deal found 11/12$384
This Delta deal was found by Cheapflights users on 11/13. 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.
Mon 12/227:46 pmDAY - SAN
2 stops22h 47mDelta
Thu 12/2511:25 amSAN - DAY
1 stop6h 37mDelta
Deal found 11/13$388
This United Airlines deal was found by Cheapflights users on 11/12. 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 12/119:01 amDAY - SAN
2 stops13h 51mUnited Airlines
Wed 12/179:54 amSAN - DAY
2 stops10h 24mUnited Airlines
Deal found 11/12$389
This Delta deal was found by Cheapflights users on 11/13. 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.
Wed 11/194:10 pmDAY - SAN
1 stop8h 03mDelta
Thu 11/278:00 amSAN - DAY
1 stop8h 16mDelta
Deal found 11/13$404

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dayton 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 November 13, 2025.
Use the filters below to find and compare flights from Dayton to San Diego that are best for you.

Fly from

Dayton

Fly to

San Diego

Route

Depart

Return

Price

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Thu 12/18

2:55 pm-9:18 pm

1 stop9h 23m

San Diego

Thu 12/25

11:25 am-9:02 pm

1 stop6h 37m

$289

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Fri 12/5

5:56 pm-10:21 pm

1 stop7h 25m

San Diego

Sun 12/14

1:22 pm-11:09 pm

1 stop6h 47m

$289

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Sat 12/13

11:19 am-6:18 pm

1 stop9h 59m

San Diego

Wed 12/17

11:05 am-11:11 pm

1 stop9h 06m

$289

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Tue 1/27

2:37 pm-8:37 pm

1 stop9h 00m

San Diego

Wed 2/18

6:30 am-5:59 pm

1 stop8h 29m

$314

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Thu 1/29

2:37 pm-8:37 pm

1 stop9h 00m

San Diego

Wed 2/18

6:30 am-5:59 pm

1 stop8h 29m

$314

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Fri 12/12

10:00 am-3:28 pm

1 stop8h 28m

San Diego

Sun 12/14

11:02 am-10:29 pm

2 stops8h 27m

$340

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Fri 1/30

11:13 am-4:54 pm

1 stop8h 41m

San Diego

Wed 2/18

8:02 am-6:41 pm

1 stop7h 39m

$379

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Sun 1/25

5:47 pm-10:33 pm

1 stop7h 46m

San Diego

Thu 2/19

2:10 pm-11:43 pm

1 stop6h 33m

$379

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Wed 1/28

3:29 pm-8:41 pm

1 stop8h 12m

San Diego

Thu 2/19

6:15 am-3:47 pm

1 stop6h 32m

$379

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Wed 1/28

10:50 am-3:36 pm

1 stop7h 46m

San Diego

Mon 2/23

2:10 pm-11:43 pm

1 stop6h 33m

$379

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 16 results
1
2

Compare providers for flights from Dayton 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 Dayton to San Diego in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice 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 Dayton-San Diego flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Dayton-San Diego flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Dayton-San Diego flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Dayton-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 Dayton-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 Dayton to San Diego

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

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

Use this chart to determine the optimal time to book a round-trip flight from Dayton to San Diego. Price data was last updated on November 7, 2025.

Booking 65 days in advance of your planned departure date is, on average, the best time to get cheap flights from Dayton to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, October is the cheapest month in which you can book a flight from Dayton to San Diego (average of $106). Flying from Dayton to San Diego in December is currently the most expensive (average of $178). 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 DAY to SAN?

Find hourly flight availability from Dayton 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 November 13, 2025.

It’s optimal to fly from Dayton to San Diego in the evening. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight in the morning.

What is the cheapest day to fly from Dayton to San Diego?

Use this chart to determine the cheapest time to fly round-trip from Dayton to San Diego. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Dayton to San Diego flight should consider departing on Wednesday evenings when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 13, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Dayton 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
8,007 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.1

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
8,007 reviews
Delta
7.9
Good
8,007 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.1

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
9,017 reviews
Delta
7.9
Good
8,007 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.1

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
8,007 reviews

Comfort

7.9

Crew

8.5

Food

7.3

Boarding

8.1

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 Dayton 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 Dayton to San Diego?

    Departing from Dayton to San Diego will take you 7h 25m. Airlines will cover a distance of 1888 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Flying on American Airlines is currently your cheapest option to San Diego, with prices starting at $288. Additional round-trip tickets that might be worth considering are offered by United Airlines and Delta, with the lowest prices starting at $288 and $288, respectively. American Airlines is currently priced 30% below the average price you’ll pay for this route.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dayton 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 Dayton to San Diego?

    Currently, October is the cheapest month in which you can book a flight from Dayton to San Diego (average of $106). Flying from Dayton to San Diego in December is currently the most expensive (average of $178). 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
National City

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Top 3 airlines flying from Dayton to San Diego

Discover the top 3 airlines that operate flights from Dayton 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 November 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$288Average$399FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$447FlexibilityNo cancel feeOn-time71%
DeltaCheapest$288Average$418FlexibilityNo cancel feeOn-timeN/A

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