Budget Airlines Like Spirit: How to Fly Cheap Without Getting Burned

Budget airlines. You see those ads for $39 flights and think, “That seems too good to be true.” Spoiler alert: it often is. But here’s the thing—budget carriers like Spirit Airlines *can* save you serious money if you know what you’re doing. The trick is understanding where they make their money (spoiler: hidden fees) and how to navigate their system without getting financially destroyed. Let’s break down how to fly cheap without getting burned.

How Budget Airlines Make Money (Spoiler: It’s Not Just Tickets)

When Spirit advertises a $39 flight, that’s technically the price. But that $39 flight rarely costs $39 by the time you’re done. Here’s where the real revenue comes from:

• Baggage fees: Carry-on bag? That might cost extra. Checked bag? Definitely costs extra. We’re talking $20-35 per bag.
• Seat selection: Want to choose your seat instead of being randomly assigned? Pay for it. $5-15 per flight.
• Boarding priority: Want to board early and get overhead bin space? That’s a separate fee.
• Drink and snacks: Everything is paid, nothing is free. A bottle of water costs $4.
• Payment methods: Some budget airlines charge extra to pay with credit cards. Cash only or debit only.
• Change/cancellation fees: Need to change your flight? $60-100 fee on top of any fare difference.

So when Spirit advertises $39, they’re betting that most passengers will add $100-150 in ancillary fees. That $39 ticket becomes $140+. Suddenly they’re not such a bargain.

The Real Cost Calculation: What You’ll Actually Pay

Let’s work through a realistic example. You’re flying Spirit from Denver to Las Vegas for a weekend trip.

The advertised price: $39 round trip. Seems amazing, right?

Here’s what actually happens:

• Base fare (round trip): $39
• Taxes and fees: ~$20
• Carry-on bag fee: $35
• Seat selection (both ways): $15
• Boarding priority: $30
• Checked bag: $60 (if needed)
• Snacks on flights: $20
• Total: $219 (without checked bag: $159)

Compare that to a traditional airline offering a $120 round trip with free baggage, included seat selection, and a snack. All of a sudden Spirit isn’t the bargain you thought it was.

The lesson: when comparing airlines, compare the total cost, not just the headline fare.

When Budget Airlines Actually Save You Money

Okay, so when *do* budget airlines make sense financially? There are real scenarios:

Ultra-light travel (just a personal item)

If you’re traveling for a weekend with only a small backpack—no checked bag, no carry-on—Spirit’s fees hurt less. Your extra costs might be seat selection plus taxes, bringing that $39 to $65. That could genuinely be cheaper than traditional carriers.

Flexibility on timing

Budget airlines often have cheap flights on unpopular times: red-eyes, early mornings, midweek flights. If you’re flexible about when you fly, you can score genuinely cheap fares that stay cheap even after fees.

Short domestic routes

The shorter the flight, the less a checked bag matters. If you’re flying 2 hours, you probably don’t need to check luggage. Spirit’s advantage shrinks on longer routes where baggage becomes more necessary.

Base fare comparison is genuinely low

Sometimes Spirit’s base fares are legitimately 30-40% cheaper than competitors, and even with fees included, you come out ahead. This happens when Spirit operates routes that traditional airlines don’t prioritize.

Spirit Airlines Hidden Fees: The Full Breakdown

Let’s get specific about Spirit’s fee structure, because they’re notorious for this:

Baggage: First carry-on is free, but second carry-on costs money. First checked bag is ~$30 for advance purchase, $40 at the airport. Second checked bag is extra.

Seat selection: Basic economy seating is free, but you don’t choose your seat. Specific seats (including extra legroom or exit rows) cost $5-20 each way.

Checked bag fees: Best booked online in advance. Buy at airport and you pay a premium.

Boarding: Standard boarding is free, but priority boarding that guarantees overhead bin space costs extra.

Cancellation/change: Non-refundable fares can’t be changed without fees. Refundable fares cost more upfront.

The strategy? Buy everything online before you fly, pack light, and accept that you’re not choosing your seat.

Packing Light: The Key to Budget Airline Savings

Here’s the real hack for flying Spirit cheaply: become obsessed with packing light. Like, seriously light.

One personal item (backpack, small crossbody bag, or laptop bag) is free. That’s your budgeting space. If you can fit everything into a personal item, you avoid ALL baggage fees.

How to do it:

• Plan outfits that repeat/mix. Five days? Three pairs of pants, seven tops, two sweaters. Mix and match.
• Wear your bulkiest items on the plane (jacket, boots, sweater).
• Plan to do laundry or buy items at your destination if needed.
• Use packing cubes to maximize space.
• Wear the same shoes multiple days.
• Buy toiletries at your destination or use travel-sized containers.

This isn’t just about Spirit—learning to travel with a personal item makes you flexible and saves money across all airlines. It’s a life skill that pays dividends.

Smart Flight Deal Strategies for Budget Airlines

If you’re going to use budget airlines, be strategic about finding deals:

Set up price alerts

Google Flights, Kayak, and Scott’s Cheap Flights will notify you when fares drop on routes you care about. Spirit often has flash sales or regional promotions.

Book on Tuesday

There’s some evidence that fares are slightly cheaper mid-week. Monday and Friday are expensive.

Clear your browser cookies before searching

Some airlines (though they deny it) track repeat searches and can raise prices. Clear cookies between searches to ensure you’re seeing the real lowest price.

Look for introductory fares on new routes

When Spirit launches a new route, they sometimes heavily discount to attract customers. That’s a great time to fly that route.

Book far in advance for budget airlines

Unlike traditional airlines where last-minute fares can be competitive, budget airlines get more expensive as flights fill. Book 2-3 months out for best prices.

Comparing Spirit to Other Budget Carriers

Spirit isn’t alone in the ultra-low-cost sector. Frontier and Allegiant also charge heavily for add-ons. Southwest is sometimes considered “budget” but has different economics (free bags, no seat selection fees, different fee structure).

Before booking Spirit, quickly compare total cost against Frontier, Allegiant, Southwest, and traditional carriers. The “cheapest” base fare often isn’t the cheapest total cost.

When It’s Worth Paying More for a Traditional Airline

Sometimes the traditional carrier is the smart financial choice:

• You need to check luggage. Two checked bags on Spirit/Frontier is expensive; traditional carriers often include bags.
• You value certainty. Spirit has notoriously high cancellation rates due to crew scheduling issues. If missing your flight is expensive, traditional carriers are more reliable.
• You’re traveling far. Long flights with connecting flights multiply Spirit’s fees. The total cost can exceed traditional carriers.
• You have status or credit card benefits. If you have airline status or a premium credit card, the perks might make traditional carriers cheaper.
• Your time is valuable. Spirit flights are often at inconvenient times. If that means lost productivity or paid time off, it matters.

The Real Strategy: Travel on a Budget Smart

The bigger picture is that flying budget isn’t just about the airline—it’s about being strategic about travel overall. Saving money while traveling means:

• Traveling less frequently but staying longer (one week trip costs less per day than three weekend trips)
• Traveling during off-peak seasons
• Driving instead of flying for routes under 6 hours
• Using miles and points from credit cards (responsibly)
• Choosing budget accommodations
• Eating affordably at your destination

The airline is just one piece. Saving money on flights is smart, but not if it prevents you from actually taking trips. And not if it adds stress or complexity that makes travel miserable.

The Bottom Line on Budget Airlines and Your Budget

Spirit and similar budget carriers can save you money if you: travel light, book strategically, accept tight quarters, and do the full cost calculation before committing. But they’re not always the cheapest option once you add fees, and they’re definitely not the most comfortable or reliable.

Be smart, do the math, and don’t get seduced by a headline price that doesn’t reflect reality. The best travel deal is one where your total cost (including time and sanity) is actually lower than the alternatives.

Learn comprehensive strategies for traveling affordably or return to Smart Money Guide for more ways to optimize your spending.