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$249+ 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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — SAN
May 1 — May 81
Fri 5/1
Fri 5/8
1 adult, Economy
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Cheap 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 April 1, 2026.

This Delta deal was found by Cheapflights users on 3/27. 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 5/196:46 pm
DAY
-
SAN
1 stop7h 41m
Delta
Sat 5/2310:25 pm
SAN
-
DAY
1 stop9h 05m
Delta
Deal found 3/27$333
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Wed 7/15:43 am
DAY
-
SAN
1 stop6h 50m
United Airlines
Wed 7/810:49 am
SAN
-
DAY
2 stops8h 37m
United Airlines
Deal found 3/31$338
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Wed 5/62:55 pm
DAY
-
SAN
1 stop8h 50m
United Airlines
Mon 5/112:14 pm
SAN
-
DAY
1 stop6h 45m
United Airlines
Deal found 3/31$351
This United Airlines deal was found by Cheapflights users on 3/29. 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 5/265:34 am
DAY
-
SAN
1 stop6h 54m
United Airlines
Tue 6/26:20 am
SAN
-
DAY
2 stops9h 44m
United Airlines
Deal found 3/29$367
This Delta deal was found by Cheapflights users on 3/27. 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 5/76:00 am
DAY
-
SAN
1 stop8h 16m
Delta
Mon 5/119:40 pm
SAN
-
DAY
1 stop9h 50m
Delta
Deal found 3/27$369
This American Airlines deal was found by Cheapflights users on 3/28. 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 6/25:42 pm
DAY
-
SAN
1 stop8h 57m
American Airlines
Mon 6/810:45 pm
SAN
-
DAY
1 stop9h 48m
American Airlines
Deal found 3/28$378
This United Airlines deal was found by Cheapflights users on 3/27. 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 8/136:00 pm
DAY
-
SAN
1 stop7h 10m
United Airlines
Tue 8/1811:00 am
SAN
-
DAY
2 stops8h 23m
United Airlines
Deal found 3/27$381
This United Airlines deal was found by Cheapflights users on 3/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:45 am
DAY
-
SAN
2 stops9h 11m
United Airlines
Thu 8/2012:33 pm
SAN
-
DAY
1 stop6h 56m
United Airlines
Deal found 3/30$385
This United Airlines deal was found by Cheapflights users on 3/27. 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 7/105:43 am
DAY
-
SAN
1 stop6h 50m
United Airlines
Fri 7/179:45 pm
SAN
-
DAY
1 stop9h 03m
United Airlines
Deal found 3/27$386

Find 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 April 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$333
(Delta)

One-way from

$249
(United Airlines)

Popular in

June

Cheapest in

November

Average price

$418
Provider with most accurate pricing for Dayton-San Diego flight deals.
Search Deals
Provider most trusted by Cheapflights users for Dayton-San Diego flights.
Search Deals
From Dayton to San Diego
Search Deals
One-way flight from Dayton to San Diego
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($37 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 April 1, 2026.
Use the filters below to find and compare flights from Dayton to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Tue 5/19

6:46 pm-11:27 pm

1 stop7h 41m

San Diego

Sat 5/23

10:25 pm-10:30 am

1 stop9h 05m

$333

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Wed 5/6

2:55 pm-8:45 pm

1 stop8h 50m

San Diego

Mon 5/11

2:14 pm-11:59 pm

1 stop6h 45m

$351

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Sat 4/11

7:15 am-11:25 am

1 stop7h 10m

San Diego

Wed 4/15

11:00 am-10:25 pm

1 stop8h 25m

$419
Quickest round-trip

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Sat 8/22

9:50 am-3:04 pm

1 stop8h 14m

San Diego

Tue 8/25

7:00 am-4:56 pm

1 stop6h 56m

$433

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Sat 8/22

7:15 am-2:57 pm

2 stops10h 42m

San Diego

Tue 8/25

9:45 pm-11:03 am

2 stops10h 18m

$443

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Tue 7/21

4:16 pm-10:36 pm

1 stop9h 20m

San Diego

Thu 7/30

7:00 am-5:21 pm

1 stop7h 21m

$451

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Fri 7/31

5:43 am-9:33 am

1 stop6h 50m

San Diego

Wed 8/5

8:32 pm-11:04 am

2 stops11h 32m

$456
Cheapest one-way

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Tue 4/28

2:50 pm-8:46 pm

1 stop8h 56m

$249

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Wed 6/24

5:34 am-11:21 am

1 stop8h 47m

$274
Quickest one-way

DaytonSan Diego

DAY - SAN

DAYSAN

Dayton

Fri 7/10

5:43 am-9:33 am

1 stop6h 50m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 16 resultsSorted by cheapest first
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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Dayton-San Diego flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 March 13, 2026.

Booking 74 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 $109). Flying from Dayton to San Diego in March is currently the most expensive (average of $230). 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.

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 April 1, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican 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
8,368 reviews

Comfort

7.9

Food

7.2

Overall

7.9

Entertainment

7.8

Boarding

8.1

Crew

8.5

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
8,368 reviews
Delta
7.9
Good
8,368 reviews

Comfort

7.9

Food

7.2

Overall

7.9

Entertainment

7.8

Boarding

8.1

Crew

8.5

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
9,529 reviews
Delta
7.9
Good
8,368 reviews

Comfort

7.9

Food

7.2

Overall

7.9

Entertainment

7.8

Boarding

8.1

Crew

8.5

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
7.1
Good
11,544 reviews
Delta
7.9
Good
8,368 reviews

Comfort

7.9

Food

7.2

Overall

7.9

Entertainment

7.8

Boarding

8.1

Crew

8.5

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 41m. 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 29% 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 $109). Flying from Dayton to San Diego in March is currently the most expensive (average of $230). 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
National City
Coronado
La Mesa
Poway
Julian
Lemon Grove

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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 April 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$288Average$378FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$288Average$448FlexibilityNo cancel feeOn-time71%
DeltaCheapest$288Average$378FlexibilityNo cancel feeOn-timeN/A

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