How long is the flight from San Antonio to Delaware?

Departing from San Antonio to Delaware will take you 7h 59m. The distance between San Antonio and Delaware is about 1493 mi.

In terms of precipitation, rainfall in Delaware ranges from 2.9 - 4.3 inches per month. July is typically the wettest month, when rainfall can reach 4.3 in. February is typically the driest time to visit Delaware when rainfall is around 2.9 in.

If weather is an important factor for your trip to Delaware, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

How far in advance should I book a flight from San Antonio to Delaware?

To save on the cost of your flight from San Antonio to Delaware, book at least 53 days before your planned departure. Booking around this time can save you about 47% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $367 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $494.

What is the cheapest month to fly from San Antonio to Delaware?

Flights from San Antonio to Delaware lean towards being more expensive in November. Prices are generally better when you fly from San Antonio to Delaware in February, with the cheapest ticket starting at $182.

What is the cheapest time of day to fly from SAT to DE?

When flying from San Antonio to Delaware, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly from for flights from San Antonio to Delaware?

Located just 7.6 mi from the city center, San Antonio (SAT) is the airport most travelers will use when flying to Delaware from San Antonio.

Can I find deals for flights from San Antonio to Delaware that include hotel bookings?

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

How can I find direct flights from San Antonio to Delaware?

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

Can I find deals for business class flights from San Antonio to Delaware?

Yes. Cheapflights offers flight deals from San Antonio to Delaware by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$91+ Cheap Flights from San Antonio to Delaware

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Cheap flight deals from San Antonio to Delaware

Round-trip from	$153 (CheapOair)
One-way from	$91 (Cheapflightsfares)
Popular in	November
Cheapest in	February
Average price	$439

From San Antonio to Delaware

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One-way flight from San Antonio to Delaware

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Highest demand for flights based on searches. 6% potential increase in price ($31 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 September 2025

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Find flight deals from San Antonio to Delaware

Cheapest flights from San Antonio to Delaware
Explore the most affordable flight options available from San Antonio to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Mon 9/225:40 pmSAT - PHL

1 stop6h 17mFrontier

Sat 9/276:45 amPHL - SAT

1 stop27h 25mFrontier

Deal found 9/8

$153

Mon 9/155:40 pmSAT - PHL

1 stop6h 17mFrontier

Mon 9/225:15 amPHL - SAT

1 stop12h 15mFrontier

Deal found 9/8

$164

Fri 10/35:40 pmSAT - PHL

1 stop6h 19mFrontier

Mon 10/65:15 amPHL - SAT

1 stop12h 15mFrontier

Deal found 9/10

$171

Fri 10/248:26 pmSAT - PHL

1 stop7h 53mFrontier

Mon 10/278:35 amPHL - SAT

1 stop10h 40mFrontier

Deal found 9/10

$174

Thu 9/2511:33 amSAT - PHL

1 stop12h 24mFrontier

Sat 9/276:45 amPHL - SAT

1 stop27h 25mFrontier

Deal found 9/8

$179

Fri 10/107:10 pmSAT - PHL

1 stop26h 17mFrontier

Sun 10/125:20 amPHL - SAT

1 stop12h 32mFrontier

Deal found 9/9

$182

Fri 10/318:15 pmSAT - PHL

1 stop7h 34mFrontier

Mon 11/36:19 amPHL - SAT

1 stop14h 11mFrontier

Deal found 9/9

$188

Thu 9/1811:33 amSAT - PHL

1 stop12h 24mFrontier

Thu 9/255:15 amPHL - SAT

1 stop6h 33mFrontier

Deal found 9/8

$190

Mon 9/295:40 pmSAT - PHL

1 stop6h 17mFrontier

Wed 10/12:45 pmPHL - SAT

1 stop21h 03mFrontier

Deal found 9/8

$191

Fri 9/195:40 pmSAT - PHL

1 stop6h 17mFrontier

Sat 9/276:45 amPHL - SAT

1 stop27h 25mFrontier

Deal found 9/8

$192

Best flights from San Antonio to Delaware
Discover carefully curated flight deals from San Antonio to Delaware that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2025.

Fri 10/178:20 pmSAT - PHL

1 stop7h 59mFrontier

Sun 10/195:20 amPHL - SAT

1 stop12h 32mFrontier

Deal found 9/11

$153

Thu 10/167:35 pmSAT - PHL

2 stops16h 18mMultiple Airlines

Sun 10/195:20 amPHL - SAT

1 stop12h 32mMultiple Airlines

Deal found 9/10

$259

Wed 10/85:55 amSAT - PHL

1 stop6h 20mSouthwest

Wed 10/156:05 pmPHL - SAT

1 stop6h 25mSouthwest

Deal found 9/9

$295

Fri 10/35:40 pmSAT - PHL

1 stop6h 19mFrontier

Mon 10/65:15 amPHL - SAT

1 stop12h 15mFrontier

Deal found 9/8

$171

Fri 10/37:17 pmSAT - PHL

2 stops16h 45mSpirit Airlines

Sun 10/55:20 amPHL - SAT

2 stops14h 10mSpirit Airlines

Deal found 9/11

$353

Wed 2/115:20 amSAT - PHL

1 stop5h 44mDelta

Sat 2/145:20 pmPHL - SAT

1 stop5h 59mDelta

Deal found 9/8

$361

Thu 10/168:26 pmSAT - PHL

1 stop7h 53mFrontier

Sun 10/195:20 amPHL - SAT

1 stop12h 32mFrontier

Deal found 9/10

$205

Wed 2/116:45 amSAT - PHL

1 stop5h 25mSouthwest

Fri 2/138:10 pmPHL - SAT

1 stop5h 45mSouthwest

Deal found 9/8

$295

Thu 11/65:55 amSAT - PHL

2 stops9h 00mSouthwest

Tue 11/116:00 amPHL - SAT

2 stops8h 35mSouthwest

Deal found 9/9

$306

Sat 11/225:50 pmSAT - PHL

1 stop4h 50mSouthwest

Thu 11/2712:00 pmPHL - SAT

1 stop7h 05mSouthwest

Deal found 9/10

$351

Last-minute flights from San Antonio to Delaware
Discover last-minute flight deals from San Antonio to Delaware. Data last updated September 11, 2025 and is based on user searches.

Mon 9/155:40 pmSAT - PHL

1 stop6h 17mFrontier

Mon 9/225:15 amPHL - SAT

1 stop12h 15mFrontier

Deal found 9/8

$164

Thu 9/1811:33 amSAT - PHL

1 stop12h 24mFrontier

Thu 9/255:15 amPHL - SAT

1 stop6h 33mFrontier

Deal found 9/8

$190

Fri 9/195:40 pmSAT - PHL

1 stop6h 17mFrontier

Sat 9/276:45 amPHL - SAT

1 stop27h 25mFrontier

Deal found 9/8

$192

Mon 9/225:40 pmSAT - PHL

1 stop6h 17mFrontier

Sat 9/276:45 amPHL - SAT

1 stop27h 25mFrontier

Deal found 9/8

$153

Thu 9/2511:33 amSAT - PHL

1 stop12h 24mFrontier

Sat 9/276:45 amPHL - SAT

1 stop27h 25mFrontier

Deal found 9/8

$179

Mon 9/295:40 pmSAT - PHL

1 stop6h 17mFrontier

Wed 10/12:45 pmPHL - SAT

1 stop21h 03mFrontier

Deal found 9/8

$191

Fri 10/35:40 pmSAT - PHL

1 stop6h 19mFrontier

Mon 10/65:15 amPHL - SAT

1 stop12h 15mFrontier

Deal found 9/10

$171

Fri 10/107:10 pmSAT - PHL

1 stop26h 17mFrontier

Sun 10/125:20 amPHL - SAT

1 stop12h 32mFrontier

Deal found 9/9

$182

Fri 10/248:26 pmSAT - PHL

1 stop7h 53mFrontier

Mon 10/278:35 amPHL - SAT

1 stop10h 40mFrontier

Deal found 9/10

$174

Fri 10/318:15 pmSAT - PHL

1 stop7h 34mFrontier

Mon 11/36:19 amPHL - SAT

1 stop14h 11mFrontier

Deal found 9/9

$188

One-way flights from San Antonio to Delaware
Search for one-way flight options from San Antonio to Delaware. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Fri 10/35:40 pmSAT - PHL

1 stop6h 19mFrontier

Deal found 9/8

$91

Fri 9/265:40 pmSAT - PHL

1 stop6h 17mFrontier

Deal found 9/10

$92

Fri 11/78:25 pmSAT - PHL

1 stop7h 24mFrontier

Deal found 9/10

$97

Thu 9/1811:33 amSAT - PHL

1 stop12h 24mFrontier

Deal found 9/8

$98

Mon 10/207:10 pmSAT - PHL

1 stop20h 15mFrontier

Deal found 9/9

$99

Mon 10/65:40 pmSAT - PHL

1 stop6h 19mFrontier

Deal found 9/9

$100

Tue 11/184:16 pmSAT - PHL

1 stop7h 16mSpirit Airlines

Deal found 9/9

$102

Wed 12/1010:40 amSAT - PHL

1 stop4h 55mSouthwest

Deal found 9/11

$103

Fri 10/107:10 pmSAT - PHL

1 stop26h 17mFrontier

Deal found 9/9

$105

Fri 9/195:40 pmSAT - PHL

1 stop6h 17mFrontier

Deal found 9/8

$109

Sun 10/268:26 pmSAT - PHL

1 stop7h 53mFrontier

Deal found 9/10

$110

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Antonio to Delaware that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 10/17

8:20 pm-5:19 am

1 stop7h 59m

Philadelphia

Sun 10/19

5:20 am-4:52 pm

1 stop12h 32m

$153

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 10/3

5:40 pm-12:59 am

1 stop6h 19m

Philadelphia

Mon 10/6

5:15 am-4:30 pm

1 stop12h 15m

$171

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Thu 10/16

8:26 pm-5:19 am

1 stop7h 53m

Philadelphia

Sun 10/19

5:20 am-4:52 pm

1 stop12h 32m

$205

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Thu 10/16

7:35 pm-12:53 pm

2 stops16h 18m

Philadelphia

Sun 10/19

5:20 am-4:52 pm

1 stop12h 32m

$259

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Wed 10/8

5:55 am-1:15 pm

1 stop6h 20m

Philadelphia

Wed 10/15

6:05 pm-11:30 pm

1 stop6h 25m

$295

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Wed 2/11

6:45 am-1:10 pm

1 stop5h 25m

Philadelphia

Fri 2/13

8:10 pm-12:55 am

1 stop5h 45m

$295

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Thu 11/6

5:55 am-3:55 pm

2 stops9h 00m

Philadelphia

Tue 11/11

6:00 am-1:35 pm

2 stops8h 35m

$306

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Sat 11/22

5:50 pm-11:40 pm

1 stop4h 50m

Philadelphia

Thu 11/27

12:00 pm-6:05 pm

1 stop7h 05m

$351

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 10/3

7:17 pm-1:02 pm

2 stops16h 45m

Philadelphia

Sun 10/5

5:20 am-6:30 pm

2 stops14h 10m

$353

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Wed 2/11

5:20 am-12:04 pm

1 stop5h 44m

Philadelphia

Sat 2/14

5:20 pm-10:19 pm

1 stop5h 59m

$361

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 18 results

Best time to book a flight from San Antonio to Delaware

Have a flexible travel schedule? Discover the best time to fly to Delaware from San Antonio 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 San Antonio to Delaware

No data available for this route at this time. Please check back soon.

Related info for your journey

What airport do you fly from for flights from San Antonio to Delaware?
Located just 7.6 mi from the city center, San Antonio (SAT) is the airport most travelers will use when flying to Delaware from San Antonio.
How long is the flight from San Antonio to Delaware?
Departing from San Antonio to Delaware will take you 7h 59m. The distance between San Antonio and Delaware is about 1493 mi.
Can I find deals for flights from San Antonio to Delaware that include hotel bookings?
Yes. In addition to deals on San Antonio to Delaware flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Antonio to Delaware?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Delaware.
Can I find deals for business class flights from San Antonio to Delaware?
Yes. Cheapflights offers flight deals from San Antonio to Delaware by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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$91+ Cheap flights from San Antonio (SAT) to Delaware

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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from San Antonio to Delaware

Keep the following information in mind while searching for San Antonio to Delaware flight deals. Data was last updated September 11, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from San Antonio to Delaware

Cheapest flights from San Antonio to DelawareExplore the most affordable flight options available from San Antonio to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Explore the most affordable flight options available from San Antonio to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Antonio to Delaware that are best for you.

Best time to book a flight from San Antonio to Delaware

Have a flexible travel schedule? Discover the best time to fly to Delaware from San Antonio with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from San Antonio to Delaware

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Delaware. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from San Antonio to Delaware?

How long is the flight from San Antonio to Delaware?

Can I find deals for flights from San Antonio to Delaware that include hotel bookings?

How can I find direct flights from San Antonio to Delaware?

Can I find deals for business class flights from San Antonio to Delaware?

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Cheapest flights from San Antonio to Delaware
Explore the most affordable flight options available from San Antonio to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.