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Cheap Flights from Wilmington to San Antonio International

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      Travellers and cabin class, 1 Adult, Economy

      Compare Wilmington to San Antonio International flight deals

      Find the cheapest month or even day of the year to fly to San Antonio International

      Book the best San Antonio International fare with no extra fees

      Flight deals from Wilmington to San Antonio International

      Looking for a cheap last-minute deal or the best return flight from Wilmington Airport to San Antonio International Airport? If you want to travel next month, return fares start from $517. Find the lowest prices on one-way and return tickets right here.
      San Antonio.$517 per passenger.Departing Wed, 14 Oct, returning Tue, 20 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Wilmington on Wed, 14 Oct, arriving in San Antonio International.Inbound indirect flight with Delta, departs from San Antonio International on Tue, 20 Oct, arriving in Wilmington.Price includes taxes and charges.From $517, select.
      San Antonio.$686 per passenger.Departing Fri, 6 Nov, returning Mon, 9 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Wilmington on Fri, 6 Nov, arriving in San Antonio International.Inbound indirect flight with Delta, departs from San Antonio International on Mon, 9 Nov, arriving in Wilmington.Price includes taxes and charges.From $686, select.
      San Antonio.$757 per passenger.Departing Fri, 18 Sep, returning Tue, 22 Sep.Return flight with Delta.Outbound indirect flight with Delta, departs from Wilmington on Fri, 18 Sep, arriving in San Antonio International.Inbound indirect flight with Delta, departs from San Antonio International on Tue, 22 Sep, arriving in Wilmington.Price includes taxes and charges.From $757, select.
      San Antonio.$1,329 per passenger.Departing Mon, 7 Dec, returning Tue, 8 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from Wilmington on Mon, 7 Dec, arriving in San Antonio International.Inbound indirect flight with Delta, departs from San Antonio International on Tue, 8 Dec, arriving in Wilmington.Price includes taxes and charges.From $1,329, select.
      San Antonio.$1,380 per passenger.Departing Wed, 17 Mar, returning Thu, 18 Mar.Return flight with Delta.Outbound indirect flight with Delta, departs from Wilmington on Wed, 17 Mar, arriving in San Antonio International.Inbound indirect flight with Delta, departs from San Antonio International on Thu, 18 Mar, arriving in Wilmington.Price includes taxes and charges.From $1,380, select.

      Find the cheapest month to fly from Wilmington to San Antonio International

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Wilmington to San Antonio International flights are currently cheapest in October.
      Sep
      from $757
      Oct
      from $517
      Nov
      from $686
      Dec
      from $1,329
      Jan
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      Feb
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      Mar
      from $1,380
      Apr
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      May
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      Jun
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      Jul
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      Aug
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      Wilmington to San Antonio International: Alternative routes

      Compare routes from Wilmington to San Antonio below. You may find an airport to fly into that's cheaper, faster, or easier than San Antonio International.

      San Antonio International

      13km from central San Antonio
      ClosestCheapest
      from $517
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      Wilmington to San Antonio: Flight information

      The things to know before you go.
      Cheapest flight found$517
      Cheapest month to flyOctober

      Finding cheap flights from Wilmington to San Antonio International: Frequently asked questions

      The best price we found for a return flight from Wilmington to San Antonio International is $517. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      Currently, there are no airlines that fly direct from Wilmington to San Antonio International. But we found flights with one or more stops from $517.
      As of September 2026, there are no flights flying from Wilmington to San Antonio International.
      The cheapest month to fly from Wilmington to San Antonio International is usually October.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Wilmington Airport to San Antonio International Airport on Wednesday, 14 October 2026.
      No airlines currently offer direct flights between Wilmington Airport and San Antonio International Airport. Most routes have one or more stops.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Antonio International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Antonio is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, Delta offers the cheapest flight tickets to San Antonio International.

      Travelling from Wilmington Airport (ILM) to San Antonio International Airport (SAT): what you need to know

      • San Antonio is one hour behind Wilmington and is in the UTC-6 timezone.

      • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Be at the airport on time to board your ILM to SAT flight.

      • During popular months such as July, it's best to get to the airport well in advance. Arrive two hours before domestic departures and four hours ahead of an international flight when you travel during a high season in general.

      • Think about adding a stopover when booking your ticket from Wilmington Airport to San Antonio International Airport. Simply deselect 'Direct flights only' to break up your trip, or enjoy a detour to a new and interesting place. Here are some options between ILM and SAT:

        • Atlanta Hartsfield-Jackson Airport

        • Dallas Fort Worth International Airport

        • Charlotte Douglas Airport

      How to find the cheapest flights from Wilmington Airport (ILM) to San Antonio International Airport (SAT)

      • The cheapest price we've seen for a one-way Wilmington Airport to San Antonio International Airport flight is $569. A round-trip ticket right now is $517. Depending on the availability when you book, these fares could change.

      • It's a good idea to book early if you want to get cheap tickets from ILM to SAT. That's because airlines change prices based on demand, which tends to increase closer to departure.

      • The 'Whole month' tool shows you the cheapest flights from Wilmington Airport to San Antonio International Airport across every month. It's a good way to snap up a bargain if your travel dates are flexible.

      • Picking up cheap flights from ILM to SAT is easy with Price Alerts. All you need to do is create one of these automatic alerts and we'll get in touch as soon as fares go down.

      • Tailor your flights using filters. Pick your ideal arrival and departure times, total journey duration and airlines. You can also sort results by 'Best,' 'Fastest' or 'Cheapest' flights from Wilmington Airport to San Antonio International Airport.

      Handy information about Wilmington Airport (ILM)

      • ILM's address is 1740 Airport Boulevard.

      • 79% of flights taking off from Wilmington Airport make it to their destination on schedule.

      • Central Wilmington to Wilmington Airport is around 10 kilometres. Depending on traffic, it'll take you about 20 minutes to get there if you're driving, ride-sharing or catching a taxi.

      • The trip when using public transport typically takes 40 minutes.

      • Get your journey off to a stress-free start by staying near ILM. Whether you have an early flight from Wilmington Airport to San Antonio International Airport or want to avoid feeling rushed, these hotels are ideal:

      Arriving at San Antonio International Airport (SAT)

      When to fly to San Antonio International Airport (SAT)

      • July is the most popular month for flights from Wilmington Airport to San Antonio International Airport. To steer clear of the crowds, head to San Antonio in March.

      • The warmest month in San Antonio is August, with temperatures ranging between 24ºC and 40ºC. Book your flights from Wilmington Airport to San Antonio International Airport in this month if you enjoy this type of weather.

      • January sees average temperatures of between 4ºC and 20ºC. Look for cheap tickets from ILM to SAT sometime around then if you want to travel when it's cooler.

      Explore more of the United States

      • You've seen San Antonio, now it's time to explore other corners of the United States. Journey about 306 kilometres east to Houston to check off its leading sights. From The Museum of Fine Arts, Houston, Beck Building to Houston Museum of Natural Science and The Menil Collection, you'll have a packed itinerary ahead.

      • Dallas is another must-experience destination in the United States and is around 402 kilometres north-east of San Antonio. No journey is complete without visiting Meyerson Symphony Centre, Winspear Opera House and Dallas Museum of Art.

      Plan the rest of your trip from Wilmington to San Antonio

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.