$731 Find Cheap Flights from Austin to Saint Lucia - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Price, demand and travel trends for Austin to Saint Lucia flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What are the cheapest fares from Austin to Saint Lucia right now?

The cheapest fare from Austin to Saint Lucia in the last week was $731 round-trip, to Castries Hewanorra (UVF).

What’s the cheapest month to fly from Austin to Saint Lucia?

August is the cheapest time of year to fly, with average fares of $734. Prices are highest in May, when average flight costs increase to around $1,108.

Which airport in Saint Lucia is the cheapest to fly to from Austin?

All flights from Austin to Saint Lucia arrive at Castries Hewanorra (UVF). On average, round-trip fares are around $856.

What’s the cheapest day to fly from Austin to Saint Lucia?

Monday tends to be the cheapest day to fly from Austin to Saint Lucia, while Friday is the most expensive. Fares run about 34% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from Austin to Saint Lucia?

Data from the past 12 months shows it's cheapest to fly to Saint Lucia during the evening with average prices of $853. The afternoon is the most expensive time to fly, with average prices of $1,390.

Key details for Austin to Saint Lucia flights

Low season

September

Cheapest flight

$731
Beat the crowds with an average 53% drop in travelers.
The most popular month to fly with an average 85% increase in travelers.
Round-trip flight from Austin to Castries

Your Austin to Saint Lucia flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Austin to Saint Lucia?

    Yes. Fares from Austin to Saint Lucia are low right now. As a rule of thumb, a round-trip under $740 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Austin to Saint Lucia?

    Over the past 12 months, round-trip fares from Austin to Saint Lucia have ranged from $740 to $1,092.

  • What are the main airports serving Saint Lucia?

    Flights to Saint Lucia use two main airports, Castries George F. L. Charle (SLU) and Castries Hewanorra (UVF).

  • What airlines fly nonstop from Austin to Saint Lucia?

    Based on the flight schedule for the next 3 months, no airline regularly operates nonstop flights from Austin to Saint Lucia. One-stop options include American Airlines and Delta.

  • Which cabin classes are available on flights from Austin to Saint Lucia?

    On flights from Austin to Saint Lucia you can only book Economy Class.

Your guide to booking Austin to Saint Lucia flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your travel dates are flexible, book your trip for August when flights are typically cheapest and avoid May when prices are at their highest.
  • Flying on Monday is usually the cheapest. Flights on Friday cost about 34% more on average, so being flexible with your travel dates could help you save.
  • Start your trip in Castries, which is the most popular destination in Saint Lucia. From there, it's easy to continue on to other popular destinations such as Soufrière, Gros Islet and Vieux Fort.

Reviews of the top airlines flying from Austin to Saint Lucia

 
Need help choosing which airline to fly with from Austin to Saint Lucia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8698 reviews
8.5Crew
8.1Boarding
7.2Food
7.8Comfort
7.8Entertainment
Airline reviews

overall the crew onboarding and providing service during our flight was great; they were friendly and helpful. I said ok to the entertainment because there was none, but the crew explained why which was very helpful. I am a diabetic and the type of snacks are not diabetic friendly (full of carbs and sugar). However, I am always prepared because I know the catering is for the larger population.

10.0 ExcellentDhegambari, Aug 2026
Read more Delta reviews

overall the crew onboarding and providing service during our flight was great; they were friendly and helpful. I said ok to the entertainment because there was none, but the crew explained why which was very helpful. I am a diabetic and the type of snacks are not diabetic friendly (full of carbs and sugar). However, I am always prepared because I know the catering is for the larger population.

delta wifi wouldn’t work boarding was not in sequence flight crew spent most of their time on the phone with the lights off pretending no one wanted or needed anything

flight was delayed 4+ hours. there was really no understanding of why? weather? the last hour of delay was post boarding. pilot seat was broken. was that the real reason? nonetheless, long day of inconveniences.

Extremely disappointed with Delta. They canceled flight last minute and then I rebooked the other flights and with which were delayed as well

Everything was good until we were boarding our connection flight in Atlanta, we were told to gate check our carry-on, but when we got inside the plane, there was plenty of room in the overhead.

The check in and bag drop off for Sky Priority members is slow. The Clear security was also slow - a TSA issue.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

Delay getting into gate in ATL caused delay in bags when getting to BWI, disrupting evening plans with family.

6 hour delay including one after we were boarded. Horrible experience.

Flight was delayed. Had to get rebooked. Diamond medallion but stuck in a crappy seat. Rebooked flight then got delayed again. Then when we finally boarded, we waited another hour for a new crew. Then landed in JFK and sat for another 40 minutes waiting for a crew to come to the gate to be able to deplane. Hot mess all around, which unfortunately is becoming the norm for Delta

Flight attendant super rude demanding I remove my carry on baggage from overhead and place under seat. I stated I am an ADA passenger and need the leg room as the seats are very tight. That’s why I boarded early for the extra time to get situated. She said, we need the space. I replied “How can that be as only a few passengers have boarded so far? I am executive platinum status so I understand the rules and you are discriminating against ADA federal law. Please stop”. Her answer… then you should find another flight! Not ok. Addressed with senior flight attendant. So unprofessional and discriminatory.

We had to de-board do to maintenance and there was ZERO help with getting rebooked. The flight was delayed by over 24 hours. Quite ridiculous. When I. called Kayak to get help to rebook, they said they couldn't and that it had to be done at the American counter that didn't exist without going outside TSA security, which I did.

We landed slightly early but then sat in holding area waiting for our gate to clear out for about an hour, so technically we arrived one hour late at the gate at ORD. The airport may be partially responsible here, but regardless of who is responsible, it was a bad experience to be so close yet unable to get off the plane.

Delayed because of waiting for some passengers who were delayed from their original time, they never made it to our flight. Late arrival causing logistic issues. Terrible all cause by waiting for someone who was not on time when waiting only benefits the airline

Missed connection from delays and times changing multiple times and then involuntarily booked on another airline next day

It was good overall but when I book my flight and seat through Kayak, AA will at times change those seats during check-in time which I don’t understand why. I always book aisle seats and had to sit at window for my flight to Austin this trip.

Nothing, I wont be flying American Airlines again and will not be recommending anyone to fly American Airlines. It was the worst experience flying I've ever had.

Short hop but nice crew, efficient processes and all very timely

My overall flight got delayed by an hour (30 mins late because of late arrival and 30 mins because there was no Jet bridge available), I was supposed to land in Chicago around 9:30 PM CT, but in actual came out of plane around 10:30 PM CT. It was so frustrating and suffocating to sit in plan on runway for around 30 mins.

The TSA check in took 1.5 hours to get through in Austin and I missed my flights back to DC

More options for your flight from Austin to Saint Lucia

Complete your trip to Saint Lucia with a hotel stay or car rental