How long is the flight from San Antonio to Delaware?

Departing from San Antonio to Delaware will take you 16h 20m. 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).

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.

$68+ Flights from San Antonio to Delaware

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Cheap 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 December 16, 2025.

Thu 12/256:45 amSAT - PHL

1 stop21h 46mFrontier

Sat 1/38:36 pmPHL - SAT

1 stop28h 41mFrontier

Deal found 12/14

$253

Wed 12/315:56 pmSAT - PHL

2 stops29h 00mMultiple Airlines

Wed 1/76:49 pmPHL - SAT

1 stop30h 03mMultiple Airlines

Deal found 12/13

$292

Wed 12/312:39 pmSAT - PHL

1 stop7h 38mSpirit Airlines

Wed 1/78:54 pmPHL - SAT

1 stop13h 46mSpirit Airlines

Deal found 12/13

$297

Tue 12/232:01 pmSAT - PHL

1 stop14h 39mFrontier

Sat 1/38:36 pmPHL - SAT

1 stop28h 41mFrontier

Deal found 12/15

$299

Tue 12/232:01 pmSAT - PHL

1 stop14h 39mFrontier

Thu 12/257:10 amPHL - SAT

1 stop31h 06mFrontier

Deal found 12/15

$325

Fri 12/195:56 pmSAT - PHL

1 stop5h 45mFrontier

Sat 1/38:36 pmPHL - SAT

1 stop28h 41mFrontier

Deal found 12/15

$328

Fri 12/265:56 pmSAT - PHL

1 stop5h 45mFrontier

Thu 1/18:36 pmPHL - SAT

1 stop15h 45mFrontier

Deal found 12/15

$342

Fri 12/195:56 pmSAT - PHL

1 stop5h 45mFrontier

Sun 12/218:36 pmPHL - SAT

1 stop15h 45mFrontier

Deal found 12/16

$353

Fri 12/265:56 pmSAT - PHL

1 stop5h 45mFrontier

Sat 1/38:36 pmPHL - SAT

1 stop28h 41mFrontier

Deal found 12/14

$358

Tue 12/232:01 pmSAT - PHL

1 stop14h 39mFrontier

Fri 12/265:10 amPHL - SAT

1 stop12h 51mFrontier

Deal found 12/14

$393

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 December 16, 2025.

Tue 1/136:30 amSAT - PHL

2 stops16h 20mSpirit Airlines

Tue 1/206:00 amPHL - SAT

2 stops18h 52mSpirit Airlines

Deal found 12/14

$158

Mon 2/210:35 amSAT - PHL

1 stop23h 39mMultiple Airlines

Thu 2/56:00 amPHL - SAT

1 stop28h 40mMultiple Airlines

Deal found 12/15

$168

Fri 1/1610:35 amSAT - PHL

1 stop21h 12mSpirit Airlines

Sat 1/176:11 pmPHL - SAT

1 stop16h 29mSpirit Airlines

Deal found 12/15

$164

Thu 1/159:09 amSAT - PHL

1 stop10h 16mMultiple Airlines

Mon 1/198:43 pmPHL - SAT

1 stop28h 09mMultiple Airlines

Deal found 12/14

$171

Tue 2/36:30 amSAT - PHL

1 stop12h 18mSpirit Airlines

Thu 2/56:00 amPHL - SAT

2 stops18h 52mSpirit Airlines

Deal found 12/14

$186

Mon 1/128:00 pmSAT - PHL

1 stop20h 43mMultiple Airlines

Thu 1/155:30 amPHL - SAT

1 stop19h 22mMultiple Airlines

Deal found 12/13

$188

Thu 1/156:30 amSAT - PHL

2 stops12h 31mSpirit Airlines

Sun 1/186:11 pmPHL - SAT

1 stop16h 29mSpirit Airlines

Deal found 12/13

$196

Sat 2/710:35 amSAT - PHL

1 stop8h 26mMultiple Airlines

Sun 2/84:03 pmPHL - SAT

1 stop8h 49mMultiple Airlines

Deal found 12/14

$198

Wed 1/146:30 amSAT - PHL

2 stops9h 19mMultiple Airlines

Wed 1/148:43 pmPHL - SAT

1 stop12h 31mMultiple Airlines

Deal found 12/13

$199

Tue 2/36:30 amSAT - PHL

1 stop27h 07mMultiple Airlines

Thu 2/57:04 pmPHL - SAT

2 stops15h 36mMultiple Airlines

Deal found 12/14

$202

Tue 1/136:30 amSAT - PHL

1 stop10h 13mMultiple Airlines

Thu 1/157:12 pmPHL - SAT

2 stops15h 28mMultiple Airlines

Deal found 12/13

$202

Last-minute flights from San Antonio to Delaware
Discover last-minute flight deals from San Antonio to Delaware. Data last updated December 16, 2025 and is based on user searches.

Thu 1/87:14 pmSAT - PHL

1 stop12h 23mMultiple Airlines

Tue 1/134:08 pmPHL - SAT

1 stop8h 44mMultiple Airlines

Deal found 12/15

$170

Sat 1/1010:35 amSAT - PHL

1 stop7h 33mMultiple Airlines

Wed 1/148:43 pmPHL - SAT

1 stop12h 31mMultiple Airlines

Deal found 12/13

$173

Sun 1/117:14 pmSAT - PHL

1 stop25h 49mMultiple Airlines

Wed 1/148:43 pmPHL - SAT

1 stop12h 31mMultiple Airlines

Deal found 12/13

$145

Sun 1/117:14 pmSAT - PHL

1 stop12h 23mMultiple Airlines

Sun 1/1812:24 pmPHL - SAT

1 stop22h 16mMultiple Airlines

Deal found 12/14

$171

Mon 1/128:00 pmSAT - PHL

1 stop20h 43mMultiple Airlines

Wed 1/148:43 pmPHL - SAT

1 stop12h 31mMultiple Airlines

Deal found 12/13

$137

Tue 1/136:30 amSAT - PHL

2 stops16h 20mSpirit Airlines

Tue 1/206:00 amPHL - SAT

2 stops18h 52mSpirit Airlines

Deal found 12/14

$158

Tue 1/136:30 amSAT - PHL

1 stop10h 13mMultiple Airlines

Wed 1/148:43 pmPHL - SAT

1 stop12h 31mMultiple Airlines

Deal found 12/13

$166

Thu 1/159:09 amSAT - PHL

1 stop10h 16mMultiple Airlines

Sun 1/1812:24 pmPHL - SAT

1 stop22h 16mMultiple Airlines

Deal found 12/13

$163

Fri 1/1610:35 amSAT - PHL

1 stop21h 12mSpirit Airlines

Sat 1/176:11 pmPHL - SAT

1 stop16h 29mSpirit Airlines

Deal found 12/15

$164

Thu 1/2910:35 amSAT - PHL

1 stop8h 26mSpirit Airlines

Sun 2/16:11 pmPHL - SAT

1 stop16h 29mSpirit Airlines

Deal found 12/14

$168

Sat 1/3110:35 amSAT - PHL

1 stop8h 26mMultiple Airlines

Mon 2/95:30 amPHL - SAT

1 stop12h 33mMultiple Airlines

Deal found 12/15

$165

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 December 16, 2025.

Mon 1/128:00 pmSAT - PHL

1 stop20h 43mFrontier

Deal found 12/15

$68

Thu 1/159:09 amSAT - PHL

1 stop10h 16mFrontier

Deal found 12/15

$80

Mon 2/210:35 amSAT - PHL

1 stop23h 39mSpirit Airlines

Deal found 12/13

$82

Fri 1/1610:35 amSAT - PHL

1 stop21h 12mSpirit Airlines

Deal found 12/15

$85

Tue 2/36:30 amSAT - PHL

1 stop12h 18mSpirit Airlines

Deal found 12/15

$86

Thu 2/121:57 pmSAT - PHL

1 stop6h 56mFrontier

Deal found 12/16

$87

Sun 1/117:14 pmSAT - PHL

1 stop12h 23mFrontier

Deal found 12/15

$88

Wed 2/1810:26 amSAT - PHL

1 stop21h 24mMultiple Airlines

Deal found 12/16

$89

Mon 1/55:56 pmSAT - PHL

1 stop5h 45mFrontier

Deal found 12/15

$91

Wed 1/72:39 pmSAT - PHL

1 stop17h 08mSpirit Airlines

Deal found 12/16

$92

Fri 1/910:35 amSAT - PHL

1 stop12h 15mSpirit Airlines

Deal found 12/15

$93

Find flight deals from San Antonio to Delaware

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$137 (Kiwi.com)
One-way from	$68 (Kiwi.com)
Popular in	June
Cheapest in	September
Average price	$382

Provider with most accurate pricing for San Antonio-Philadelphia flight deals.

Search Deals

Provider most trusted by Cheapflights users for San Antonio-Philadelphia flights.

Search Deals

From San Antonio to Delaware

Search Deals

One-way flight from San Antonio to Delaware

Search Deals

Highest demand for flights based on searches. 10% potential increase in price ($51 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 December 2025

Search Deals

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

Tue 1/13

6:30 am-11:50 pm

2 stops16h 20m

Philadelphia

Tue 1/20

6:00 am-11:52 pm

2 stops18h 52m

$158

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 1/16

10:35 am-8:47 am

1 stop21h 12m

Philadelphia

Sat 1/17

6:11 pm-9:40 am

1 stop16h 29m

$164

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Mon 2/2

10:35 am-11:14 am

1 stop23h 39m

Philadelphia

Thu 2/5

6:00 am-9:40 am

1 stop28h 40m

$168

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Thu 1/15

9:09 am-8:25 pm

1 stop10h 16m

Philadelphia

Mon 1/19

8:43 pm-11:52 pm

1 stop28h 09m

$171

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Tue 2/3

6:30 am-7:48 pm

1 stop12h 18m

Philadelphia

Thu 2/5

6:00 am-11:52 pm

2 stops18h 52m

$186

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Mon 1/12

8:00 pm-5:43 pm

1 stop20h 43m

Philadelphia

Thu 1/15

5:30 am-11:52 pm

1 stop19h 22m

$188

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Thu 1/15

6:30 am-8:01 pm

2 stops12h 31m

Philadelphia

Sun 1/18

6:11 pm-9:40 am

1 stop16h 29m

$196

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Sat 2/7

10:35 am-8:01 pm

1 stop8h 26m

Philadelphia

Sun 2/8

4:03 pm-11:52 pm

1 stop8h 49m

$198

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Wed 1/14

6:30 am-4:49 pm

2 stops9h 19m

Philadelphia

Wed 1/14

8:43 pm-8:14 am

1 stop12h 31m

$199

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Tue 2/3

6:30 am-10:37 am

1 stop27h 07m

Philadelphia

Thu 2/5

7:04 pm-9:40 am

2 stops15h 36m

$202

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 22 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 16h 20m. 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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$68+ 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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Antonio to Delaware with Cheapflights

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Cheap 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 December 16, 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 December 16, 2025.

Find 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 December 16, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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 December 16, 2025.