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$240+ 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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — SAN
ago. 22 — ago. 291
vie. 8/22
vie. 8/29
1 adult, Economy
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Cheapflights Tip: The best prices from Dayton to San Diego are usually found in August or June, 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 agosto 17, 2025.

Round-trip from

$259
(American Airlines)

One-way from

$240
(Delta)

Popular in

March

Cheapest in

August

Average price

$388
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. 3% potential increase in price ($18 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 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 agosto 17, 2025.

This American Airlines deal was found by Cheapflights users on 8/16. 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.
sáb. 8/301:59 pmDAY - SAN
1 stop7h 52mAmerican Airlines
sáb. 9/66:15 amSAN - DAY
1 stop7h 52mAmerican Airlines
Deal found 8/16$259
This United Airlines deal was found by Cheapflights users on 8/15. 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.
sáb. 8/302:52 pmDAY - SAN
1 stop8h 27mUnited Airlines
mié. 9/32:11 pmSAN - DAY
1 stop6h 33mUnited Airlines
Deal found 8/15$284
This American Airlines deal was found by Cheapflights users on 8/16. 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.
jue. 9/187:04 amDAY - SAN
1 stop8h 23mAmerican Airlines
mié. 9/247:00 amSAN - DAY
1 stop9h 37mAmerican Airlines
Deal found 8/16$289
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/44:30 pmDAY - SAN
1 stop7h 45mDelta
lun. 9/810:30 pmSAN - DAY
1 stop8h 56mDelta
Deal found 8/16$314
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/106:44 pmDAY - SAN
1 stop7h 30mDelta
mié. 10/226:15 amSAN - DAY
1 stop8h 44mDelta
Deal found 8/16$339
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/66:44 pmDAY - SAN
1 stop7h 30mDelta
mar. 10/2110:30 pmSAN - DAY
1 stop8h 54mDelta
Deal found 8/16$344
This United Airlines deal was found by Cheapflights users on 8/15. 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.
vie. 10/317:00 amDAY - SAN
1 stop7h 31mUnited Airlines
vie. 11/710:00 pmSAN - DAY
1 stop8h 52mUnited Airlines
Deal found 8/15$349
This American Airlines deal was found by Cheapflights users on 8/14. 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.
jue. 9/256:23 pmDAY - SAN
1 stop6h 27mAmerican Airlines
jue. 10/211:46 amSAN - DAY
1 stop7h 11mAmerican Airlines
Deal found 8/14$354
This United Airlines deal was found by Cheapflights users on 8/14. 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.
sáb. 10/115:55 pmDAY - SAN
1 stop7h 19mUnited Airlines
mar. 10/1411:08 amSAN - DAY
2 stops9h 36mUnited Airlines
Deal found 8/14$358
This United Airlines deal was found by Cheapflights users on 8/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/3011:42 amDAY - SAN
2 stops11h 00mUnited Airlines
sáb. 9/67:00 amSAN - DAY
2 stops10h 12mUnited Airlines
Deal found 8/16$360
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/76:44 pmDAY - SAN
1 stop7h 30mDelta
mar. 10/216:20 amSAN - DAY
2 stops13h 24mDelta
Deal found 8/16$368

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 agosto 17, 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

sáb. 8/30

1:59 pm-6:51 pm

1 stop7h 52m

San Diego

sáb. 9/6

6:15 am-5:07 pm

1 stop7h 52m

$259

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

sáb. 8/30

2:52 pm-8:19 pm

1 stop8h 27m

San Diego

mié. 9/3

2:11 pm-11:44 pm

1 stop6h 33m

$284

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

mié. 10/15

6:44 pm-11:14 pm

1 stop7h 30m

San Diego

lun. 10/20

9:48 pm-10:24 am

1 stop9h 36m

$289

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

sáb. 9/27

9:11 am-2:11 pm

1 stop8h 00m

San Diego

sáb. 10/4

10:10 am-10:56 pm

1 stop9h 46m

$289

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

jue. 10/9

1:29 pm-8:19 pm

1 stop9h 50m

San Diego

vie. 10/24

10:30 pm-10:24 am

1 stop8h 54m

$289

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

jue. 9/18

5:01 pm-9:48 pm

1 stop7h 47m

San Diego

mar. 9/23

10:10 am-8:38 pm

1 stop7h 28m

$289

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

sáb. 10/11

5:30 pm-11:14 pm

1 stop8h 44m

San Diego

mar. 10/14

10:30 pm-10:24 am

1 stop8h 54m

$289

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

vie. 11/7

6:00 am-12:31 pm

1 stop9h 31m

San Diego

lun. 11/10

6:16 am-5:18 pm

1 stop8h 02m

$289

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

mar. 10/7

6:44 pm-11:14 pm

1 stop7h 30m

San Diego

mar. 10/21

10:30 pm-10:24 am

1 stop8h 54m

$289

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

mié. 10/8

6:05 am-9:59 am

1 stop6h 54m

San Diego

mié. 10/22

1:14 pm-11:59 pm

1 stop7h 45m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Showing 1-10 of 17 results
1
2

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 August 8, 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, August is the cheapest month in which you can book a flight from Dayton to San Diego (average of $286). Flying from Dayton 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 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 agosto 17, 2025.

It’s optimal to fly from Dayton to San Diego in the evening. By choosing this option you can save up to 13% 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 agosto 17, 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
8.0
Very good
7,986 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

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
8.0
Very good
7,986 reviews
Delta
8.0
Very good
7,986 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

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
8,919 reviews
Delta
8.0
Very good
7,986 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

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
10,000 reviews
Delta
8.0
Very good
7,986 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Food

7.3

Overall

8.0

Entertainment

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.

  • 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 Delta and United Airlines, with the lowest prices starting at $288 and $288, respectively. American Airlines is currently priced 34% below the average price you’ll pay for this route.

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

    $240 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Alaska Airlines and United Airlines, with prices starting from $289 and $353, respectively.

  • 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, August is the cheapest month in which you can book a flight from Dayton to San Diego (average of $286). Flying from Dayton 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
La Mesa
Poway
National City
Lemon Grove
Imperial Beach
Alpine

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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 agosto 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$288Average$432FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$288Average$437FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$458FlexibilityNo cancel feeOn-time71%

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