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Flights from Allentown to San Antonio

Find cheap airlines flights from Allentown to San Antonio

You can choose from 1 airlines that fly from Allentown to San Antonio, including Delta Air Lines, Delta Air Lines has lowest fares on this route.
Delta Air Lines logo Delta Air Lines
Airlines are determined based on actual purchased flight tickets from Allentown to San Antonio according to previous 12 months data from Trip.com.

Find flight deals from Allentown to San Antonio for the next 3 months. Book one way flights from $138 or round trip flights from $367.

      • ABE 6:15 PM
        7h 29m
        1 stop
        SAT 12:44 AM
        Allentown - San Antonio | Sat, May 16 | Delta Air Lines
        SAT 2:27 PM
        6h 51m
        1 stop
        ABE 10:18 PM
        San Antonio - Allentown | Thu, May 21 | Delta Air Lines
        $367 $685
        46% off
        46% off
        $685 $367
      • ABE 5:59 PM
        7h 47m
        1 stop
        SAT 12:46 AM
        Allentown - San Antonio | Thu, Apr 16 | Delta Air Lines
        SAT 5:20 AM
        5h 52m
        1 stop
        ABE 12:12 PM
        San Antonio - Allentown | Mon, Apr 20 | Delta Air Lines
        $421 $685
        39% off
        39% off
        $685 $421
      • ABE 6:27 AM
        5h 36m
        1 stop
        SAT 11:03 AM
        Allentown - San Antonio | Tue, May 26 | Delta Air Lines
        SAT 2:27 PM
        6h 51m
        1 stop
        ABE 10:18 PM
        San Antonio - Allentown | Tue, Jun 2 | Delta Air Lines
        $458 $685
        33% off
        33% off
        $685 $458
      • ABE 5:59 PM
        7h 47m
        1 stop
        SAT 12:46 AM
        Allentown - San Antonio | Sat, Apr 18 | Delta Air Lines
        SAT 5:20 AM
        5h 52m
        1 stop
        ABE 12:12 PM
        San Antonio - Allentown | Tue, Apr 21 | Delta Air Lines
        $461
        33% off
        $685 $461
      • ABE 5:59 PM
        7h 47m
        1 stop
        SAT 12:46 AM
        Allentown - San Antonio | Sun, Apr 26 | Delta Air Lines
        SAT 2:00 PM
        8h
        1 stop
        ABE 11:00 PM
        San Antonio - Allentown | Thu, Apr 30 | Delta Air Lines
        $473
        31% off
        $685 $473
      • ABE 5:59 PM
        7h 35m
        1 stop
        SAT 12:34 AM
        Allentown - San Antonio | Wed, Apr 15 | Delta Air Lines
        SAT 5:20 AM
        5h 52m
        1 stop
        ABE 12:12 PM
        San Antonio - Allentown | Tue, Apr 21 | Delta Air Lines
        $474
        31% off
        $685 $474
      • ABE 6:15 PM
        7h 29m
        1 stop
        SAT 12:44 AM
        Allentown - San Antonio | Fri, May 15 | Delta Air Lines
        SAT 5:25 AM
        5h 54m
        1 stop
        ABE 12:19 PM
        San Antonio - Allentown | Sat, May 23 | Delta Air Lines
        $536
        22% off
        $685 $536
      • ABE 5:43 PM
        6h 15m
        1 stop
        SAT 10:58 PM
        Allentown - San Antonio | Thu, Apr 16 | United Airlines
        SAT 2:02 PM
        6h 15m
        1 stop
        ABE 9:17 PM
        San Antonio - Allentown | Mon, Apr 20 | United Airlines
        $560
        18% off
        $685 $560
      • ABE 5:58 PM
        7h 40m
        1 stop
        SAT 12:38 AM
        Allentown - San Antonio | Tue, Apr 14 | Delta Air Lines
        SAT 5:20 AM
        5h 52m
        1 stop
        ABE 12:12 PM
        San Antonio - Allentown | Tue, Apr 21 | Delta Air Lines
        $570
        17% off
        $685 $570
      • ABE 12:00 PM
        5h 52m
        1 stop
        SAT 4:52 PM
        Allentown - San Antonio | Sun, Apr 19 | American Airlines
        SAT 5:42 PM
        5h 40m
        1 stop
        ABE 12:22 AM
        San Antonio - Allentown | Wed, Apr 22 | American Airlines
        $575
        16% off
        $685 $575
      • ABE 1:00 PM
        17h 25m
        1 stop
        SAT Invalid Date
        Allentown - San Antonio | Wed, Apr 15 | Normal Airline
        SAT 3:00 PM
        6h
        Nonstop
        ABE 4:00 PM
        San Antonio - Allentown | Fri, Apr 17 | Normal Airline
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        Find more flights
      • ABE 5:59 PM
        7h 47m
        1 stop
        SAT 12:46 AM
        Allentown - San Antonio | Fri, Apr 17 | Delta Air Lines
        $138 $190
        27% off
        27% off
        $190 $138
      • ABE 12:52 PM
        8h 38m
        1 stop
        SAT 8:30 PM
        Allentown - San Antonio | Sat, Apr 18 | Delta Air Lines
        $138 $190
        27% off
        27% off
        $190 $138
      • ABE 12:53 PM
        8h 37m
        1 stop
        SAT 8:30 PM
        Allentown - San Antonio | Tue, Apr 28 | Delta Air Lines
        $147 $190
        23% off
        23% off
        $190 $147
      • ABE 5:59 PM
        7h 47m
        1 stop
        SAT 12:46 AM
        Allentown - San Antonio | Sun, Apr 26 | Delta Air Lines
        $147
        23% off
        $190 $147
      • ABE 5:59 PM
        7h 47m
        1 stop
        SAT 12:46 AM
        Allentown - San Antonio | Sat, Apr 25 | Delta Air Lines
        $149
        22% off
        $190 $149
      • ABE 5:59 PM
        7h 47m
        1 stop
        SAT 12:46 AM
        Allentown - San Antonio | Mon, Apr 20 | Delta Air Lines
        $150
        21% off
        $190 $150
      • ABE 5:59 PM
        7h 47m
        1 stop
        SAT 12:46 AM
        Allentown - San Antonio | Tue, Apr 21 | Delta Air Lines
        $150
        21% off
        $190 $150
      • ABE 5:59 PM
        7h 47m
        1 stop
        SAT 12:46 AM
        Allentown - San Antonio | Wed, Apr 22 | Delta Air Lines
        $150
        21% off
        $190 $150
      • ABE 5:59 PM
        7h 47m
        1 stop
        SAT 12:46 AM
        Allentown - San Antonio | Mon, Apr 27 | Delta Air Lines
        $151
        21% off
        $190 $151
      • ABE 3:25 PM
        27h 10m
        1 stop
        SAT 5:35 PM
        Allentown - San Antonio | Fri, Apr 17 | Allegiant Air
        $159
        16% off
        $190 $159
      • ABE 1:00 PM
        17h 25m
        1 stop
        SAT Invalid Date
        Allentown - San Antonio | Wed, Apr 15 | Normal Airline
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        Find more flights

Displayed flight fares from Allentown to San Antonio are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight Info | Allentown to San Antonio

The distance between Allentown and San Antonio is approximately 2,421.44 km. Based on Trip.com's data travel demand peaks in July. The off-season for travel is September.

Cheapest one-way flight price$138
Cheapest round-trip ticket price$367
Off-season for travelSeptember
Peak season for travelJuly
Flight distance2,421.44 km
Popular airlineDelta Air Lines
Flight statistics for the Allentown–San Antonio route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Allentown to San Antonio (ABE-SAT)?

    Based on Trip.com data, Delta Air Lines offers one-way fares as low as $138 on Cheapest nonstop routes (e.g. ABE to SAT on Fri, Apr 17), while Delta Air Lines offers Cheapest nonstop round-trips from $367 departing on Sat, May 16 and returning on Thu, May 21.
  • At the moment, several airlines serve connecting flights from Allentown to San Antonio, including: Delta Air Lines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Allentown to San Antonio is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Allentown to San Antonio, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Fri, Apr 17, with one-way flights priced at just $138.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Delta Air Lines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for San Antonio travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Allentown to San Antonio is September, when demand for travel is lower.
  • After crunching the numbers on our April flight calendar, it's currently cheapest to fly from Allentown to San Antonio on April 13, 2026 with Allegiant Air, with prices starting at $129.
  • You can land at any one of the following hubs in San Antonio, with Lehigh Valley International Airport to San Antonio International Airport (ABE-SAT) is by far the most common option on this route: San Antonio International Airport (SAT) Kelly Field Annex/Lackland Air Force Base (SKF).
  • The time difference between San Antonio and Allentown is 1h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

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Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.