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Delaware

$103+ 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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — ILG
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
1 adult, Economy
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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 July 30, 2025.

Round-trip from

$187
(CheapOair)

One-way from

$103
(Cheapflightsfares)

Popular in

November

Cheapest in

February

Average price

$479
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 ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 30, 2025.

This CheapOair deal was found by Cheapflights users on 7/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/22:54 pmSAT - PHL
1 stop8h 05mSpirit Airlines
Mon 10/65:30 amPHL - SAT
1 stop9h 19mSpirit Airlines
Deal found 7/29$187
This CheapOair deal was found by Cheapflights users on 7/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/42:54 pmSAT - PHL
1 stop8h 05mMultiple Airlines
Sat 9/66:45 amPHL - SAT
1 stop8h 42mMultiple Airlines
Deal found 7/28$217
This Frontier deal was found by Cheapflights users on 7/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/96:59 pmSAT - PHL
1 stop9h 10mFrontier
Sat 8/166:15 amPHL - SAT
1 stop12h 47mFrontier
Deal found 7/29$238
This American Airlines deal was found by Cheapflights users on 7/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/238:00 amSAT - PHL
Nonstop3h 43mAmerican Airlines
Sat 8/306:55 pmPHL - SAT
Nonstop4h 03mAmerican Airlines
Deal found 7/30$277
This Southwest deal was found by Cheapflights users on 7/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/238:45 amSAT - PHL
1 stop5h 25mSouthwest
Sat 8/3012:15 pmPHL - SAT
1 stop6h 50mSouthwest
Deal found 7/28$296

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Antonio to Delaware 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 July 30, 2025.
Use the filters below to find and compare flights from San Antonio to Delaware that are best for you.

Fly from

San Antonio

Fly to

Delaware

Route

Depart

Return

Price

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Thu 10/2

2:54 pm-11:59 pm

1 stop8h 05m

Philadelphia

Mon 10/6

5:30 am-1:49 pm

1 stop9h 19m

$187

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Thu 9/4

2:54 pm-11:59 pm

1 stop8h 05m

Philadelphia

Sat 9/6

6:45 am-2:27 pm

1 stop8h 42m

$217

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Sat 8/9

6:59 pm-5:09 am

1 stop9h 10m

Philadelphia

Sat 8/16

6:15 am-6:02 pm

1 stop12h 47m

$238

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Sat 8/23

8:00 am-12:43 pm

Nonstop3h 43m

Philadelphia

Sat 8/30

6:55 pm-9:58 pm

Nonstop4h 03m

$277

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Sat 8/23

8:45 am-3:10 pm

1 stop5h 25m

Philadelphia

Sat 8/30

12:15 pm-6:05 pm

1 stop6h 50m

$296

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Sun 9/7

2:54 pm-11:59 pm

1 stop8h 05m

$103

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Sat 8/16

6:59 pm-5:09 am

1 stop9h 10m

$114

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Wed 8/20

8:00 am-12:43 pm

Nonstop3h 43m

$139

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Sat 9/6

12:45 pm-11:00 pm

1 stop9h 15m

$148

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Tue 8/26

6:30 am-2:17 pm

1 stop6h 47m

$189

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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.

Reviews of airlines servicing Delaware

Get insights into the airlines that provide service to Delaware. 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 Delaware. Reviews last updated July 30, 2025.
Get a feel of what it's like to fly with Southwest, United Airlines, and American Airlines from San Antonio to Delaware by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,896 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Spirit Airlines
6.3
Okay
8,048 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Frontier
5.9
Fair
3,237 reviews
Southwest
8.0
Very good
4,241 reviews

Entertainment

7.5

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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?

    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.

  • What are the cheapest airlines to fly from San Antonio to Delaware one-way?

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $103. However, be on the lookout for offers from Frontier and American Airlines, as they are both options that can get you from San Antonio to Delaware for a low price.

  • 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

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