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$289+ Cheap flights from Dayton to San Diego (DAY - 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — SAN
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Dayton to San Diego are usually found in August or September, 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 September 17, 2025.

Round-trip from

$289
(American Airlines)

Popular in

March

Cheapest in

August

Average price

$403
From Dayton to San Diego
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($22 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).
Search Deals
Average for round-trip flights in September 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 September 17, 2025.

This American Airlines deal was found by Cheapflights users on 9/16. 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.
Tue 10/146:00 amDAY - SAN
1 stop9h 29mAmerican Airlines
Tue 10/216:16 amSAN - DAY
1 stop7h 32mAmerican Airlines
Deal found 9/16$289
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3011:15 amDAY - SAN
1 stop9h 55mDelta
Sat 10/46:15 amSAN - DAY
1 stop6h 36mDelta
Deal found 9/15$339
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Tue 10/145:55 pmDAY - SAN
1 stop7h 19mUnited Airlines
Tue 10/218:00 amSAN - DAY
2 stops9h 09mUnited Airlines
Deal found 9/16$343
This American Airlines deal was found by Cheapflights users on 9/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:55 amDAY - SAN
1 stop8h 18mAmerican Airlines
Wed 1/286:35 amSAN - DAY
1 stop8h 07mAmerican Airlines
Deal found 9/15$344
This United Airlines deal was found by Cheapflights users on 9/17. 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 10/2111:42 amDAY - SAN
1 stop9h 48mUnited Airlines
Sun 10/262:16 pmSAN - DAY
1 stop6h 27mUnited Airlines
Deal found 9/17$354
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Thu 11/137:00 amDAY - SAN
1 stop7h 31mUnited Airlines
Sun 11/1611:20 amSAN - DAY
1 stop7h 55mUnited Airlines
Deal found 9/16$360
This American Airlines deal was found by Cheapflights users on 9/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/218:38 amDAY - SAN
1 stop8h 40mAmerican Airlines
Sun 11/236:20 amSAN - DAY
1 stop8h 25mAmerican Airlines
Deal found 9/15$369
This United Airlines deal was found by Cheapflights users on 9/17. 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 9/2411:42 amDAY - SAN
1 stop9h 38mUnited Airlines
Wed 10/12:11 pmSAN - DAY
1 stop6h 32mUnited Airlines
Deal found 9/17$379
This American Airlines deal was found by Cheapflights users on 9/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 amDAY - SAN
1 stop11h 13mAmerican Airlines
Tue 1/208:07 amSAN - DAY
1 stop10h 39mAmerican Airlines
Deal found 9/15$385

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 September 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

Fri 10/24

1:29 pm-8:19 pm

1 stop9h 50m

San Diego

Sun 10/26

10:30 pm-10:24 am

1 stop8h 54m

$289

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Tue 10/14

6:00 am-12:29 pm

1 stop9h 29m

San Diego

Tue 10/21

6:16 am-4:48 pm

1 stop7h 32m

$289

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Tue 9/30

11:15 am-6:10 pm

1 stop9h 55m

San Diego

Sat 10/4

6:15 am-3:51 pm

1 stop6h 36m

$339

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Tue 10/14

5:55 pm-10:14 pm

1 stop7h 19m

San Diego

Tue 10/21

8:00 am-8:09 pm

2 stops9h 09m

$343

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Thu 11/13

7:00 am-11:31 am

1 stop7h 31m

San Diego

Sun 11/16

11:20 am-10:15 pm

1 stop7h 55m

$360

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Fri 11/21

8:38 am-2:18 pm

1 stop8h 40m

San Diego

Sun 11/23

6:20 am-5:45 pm

1 stop8h 25m

$369

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Tue 9/30

7:21 am-2:59 pm

2 stops10h 38m

San Diego

Sat 10/4

12:52 pm-10:04 pm

1 stop6h 12m

$384

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Fri 10/24

12:19 pm-11:05 pm

2 stops13h 46m

San Diego

Sun 10/26

12:45 pm-11:59 pm

1 stop8h 14m

$409

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Fri 9/26

11:15 am-6:07 pm

1 stop9h 52m

San Diego

Sun 9/28

10:30 pm-10:22 am

1 stop8h 52m

$419

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Thu 9/25

1:38 pm-12:15 am

2 stops13h 37m

$428

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 11 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 September 12, 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 September 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.

How much does it cost to fly round-trip from Dayton 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 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
7,961 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

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
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

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
8,926 reviews
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

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
7,961 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

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 19m. 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 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.

  • 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
La Mesa
Poway
Lemon Grove
Coronado
Imperial Beach
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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$288Average$419FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$288Average$444FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$459FlexibilityNo cancel feeOn-time71%

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