Published November 20, 2025 by

Cheap Flights: Austin to/from Costa Rica (LIR) $277-$281 r/t [December-September] (No Christmas) – United

[11/20/2025 @ 05:08 PM CT] Deal time-stamp.
[2025-11-21 13:34:00] This deal is still available, but the original date ranges may have shifted. We have updated the example date links in this post to reflect those changes. Expect prices to fluctuate by about +/- 10%.

Deals are usually valid 24 to 72 hours after posting, but can expire at any time (see time-stamp).

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Or book with these sites: Priceline, Skyscanner, Expedia, Travelocity, Tripadvisor, Orbitz, CheapTickets, Kayak.

United has round-trip flights from Austin (AUS) to Costa Rica (LIR) for $277-$281 with a connection. Flights December to September. Weekends available. Origin/Destination reversible. No Christmas dates available.

United’s “Basic Economy” fares do not allow for a free carry-on bag. Only a personal item (like a small laptop bag) is free. Seats are randomly assigned for free prior to boarding.

The personal item size on United is smaller (9 x 10 x 17 inches) than Frontier or Spirit (8 x 13 x 18 inches).

If you use the United℠ Explorer Card, your first standard checked-bag for you and your companion is free, you get priority boarding, two United Club passes per year, and you get a 25% discount on inflight purchases on United-operated flights as a statement credit.

You can usually save more money by booking your flight+hotel together as a package instead of separately.

Do a search on Tripadvisor to find guides, tours, restaurants, attractions, and cool things to do. It’s a good resource to use for planning your day-to-day itinerary while on vacation.

We post new flight deals often! You can check out our other deals by returning to the Front Page of our website: escapeatx.com (linked).

Here are some other offers that we think are worth mentioning. List updated 11/07/2025.

We now track coupon codes, discount codes, gift card discounts, and credit card offers that have a better value than their historical averages.

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Use the example date links on our website to pull up the fare.

Liberia, Costa Rica fares: [2025-11-21 13:34:00] This deal is still available, but the original date ranges may have shifted. We have updated the example date links in this post to reflect those changes. Expect prices to fluctuate by about +/- 10%.

 

When you are ready to book your flight or hotel, please use the links on our site to begin your booking process so we receive credit for the referral.

  • Tips: Rent a car for cheaper by using Priceline’s “Express Deals”. The rental car company will be hidden until after you purchase, but this allows those companies to undercut the published rate indirectly. You can remove low quality companies from those hidden results. The trick is to use the quality filter on their website to remove any rental car company with a review rating under 7.0 and then pick the deals that survive the filter. Note that the quality filter is only available on the desktop/web version of the Priceline website and isn’t available on the mobile version.
  • Tips: Use Tripadvisor to create a Hotel “short list”. First, plug in your dates and destination. Then select “Sort by Traveler Ranked”. Finally, select the “Traveler Ranking” filter to show “only 4* and up”. Use this resulting “short list” of hotels to find the cheapest one with a high ranking.
  • Tips: Hotel rates for Weekend dates are usually higher than the rates for Sunday through Thursday. Tripadvisor has a color-coded date calendar, red when the average hotel price for that day is more expensive, green for less expensive. You can use this to get an overview of what dates in the month are at a discount.
  • Tips: Different booking websites will often have differing routes, prices, and availability. Before you finalize your purchase, do a quick check on BookingBuddy, Skyscanner, and Kayak to see if any other site or airline is offering a better deal.

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Ren P. Artemio

Ren P. Artemio

Ren is the Chief Director of Nap Times at Escape Houston, Escape ATX, Cheap DFW, and Escape Flights. He really likes researching airfare and the travel industry, especially when it means getting a cheap flight to anywhere (he's not picky).

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