Spokane’s Budget Airline Landscape

Spokane International Airport (GEG) has quietly become a smart launching pad for travelers who want to stretch every dollar. Four low-cost carriers now fly from Spokane, connecting the Inland Northwest with major cities and sunny vacation spots across the United States. Instead of driving hundreds of miles to a larger airport, locals and visitors can catch a no-frills flight right here and still keep more cash in their pocket.

The budget options at GEG range from bare-bones ultra-low-cost models to carriers that offer free checked bags and no change fees. Each airline takes a different approach to low fares, so understanding how they operate will help you pick the best fit for your trip. While the mainline carriers like Alaska, Delta, and United offer competitive basic economy fares on some routes, the dedicated budget airlines are usually the ones delivering the headline-grabbing $39 one-way deals.

Below you’ll find a breakdown of the four budget airlines currently serving Spokane, what they offer, where they fly, and the strategies you can use to keep the total trip cost as low as possible.

Frontier Airlines: Ultra-Low Fares with à La Carte Services

Frontier Airlines runs a classic ultra-low-cost model that lets you pay only for what you actually need. The base fare covers a seat and one personal item that fits under the seat in front of you. Everything else—carry-on luggage, checked bags, seat assignments, and snacks—comes with an extra charge. For travelers willing to pack light and skip the extras, Frontier can deliver some of the lowest airfares out of Spokane.

Frontier operates year-round and seasonal nonstop flights from GEG, with popular destinations including Denver, Las Vegas, and Phoenix. The airline frequently launches flash sales and discount den membership promotions that can push one-way fares under $39. If you join Frontier’s Discount Den, you gain access to exclusive fares and deals for kids flying free on select flights, which can make family travel surprisingly affordable.

The drawbacks center on tighter legroom and fees that can add up quickly if you’re not careful. Still, when you snag a $29 fare to Denver and pack only a small backpack, the savings are hard to beat.

Allegiant Air: Low Fares to Leisure Hotspots

Allegiant Air specializes in connecting small and mid-sized cities to vacation destinations, and Spokane fits neatly into that model. Allegiant’s route map from GEG focuses heavily on sun and sand, with nonstop flights to Phoenix/Mesa, Las Vegas, and Los Angeles as well as seasonal service to other warm-weather spots.

Allegiant’s pricing structure mirrors Frontier’s in many ways: the base ticket is rock-bottom, and you pay extra for carry-on bags, checked luggage, seat selection, and even boarding pass printing at the airport. One difference is that Allegiant often bundles hotel and car rental packages, which can produce dramatic savings when you book a complete vacation through Allegiant’s website.

The airline operates less-than-daily flights on many routes, so flexibility is key. If your dates align with their schedule, you can land incredible deals. Allegiant’s current fleet is all-Airbus, and while legroom is standard for a budget carrier, the nonstop convenience often outweighs the tight seats.

Southwest Airlines: Two Free Checked Bags and No Change Fees

Southwest Airlines functions differently from ultra-low-cost carriers and is often the favorite for travelers who value predictability. Instead of charging for every little add-on, Southwest builds several benefits right into the fare. All passengers get two free checked bags, no change or cancellation fees (you receive travel credit for the fare), and complimentary snacks and drinks.

From Spokane, Southwest flies nonstop to Denver, Las Vegas, Oakland, Phoenix, and Seattle, with easy connections to the rest of the country. The absence of bag fees can cancel out a slightly higher base fare, especially when you’re traveling with a family or need to bring equipment for a longer trip. Southwest’s boarding process—based on check-in time rather than assigned seats—rewards those who check in exactly 24 hours before departure.

Fare sales pop up regularly, and the Rapid Rewards program offers solid redemption rates. If you hold a Southwest credit card or time your bookings during the carrier’s frequent Wanna Get Away sales, you can often find Spokane–Las Vegas round trips for under $200.

Sun Country Airlines: Seasonal Midwest Connections and Vacation Service

Sun Country Airlines brings a different flavor to Spokane’s budget mix. The Minneapolis-based carrier offers seasonal nonstop flights to Minneapolis/St. Paul, with convenient onward connections to the East Coast and other Midwest destinations. During winter and summer break periods, Sun Country also adds limited-time routes to warm-weather leisure spots such as Fort Myers or Phoenix.

The airline operates much like Frontier and Allegiant, with unbundled pricing that keeps base fares low and lets you add bags, seats, and priority boarding for a fee. Sun Country stands out for its clean, modern fleet and friendly service, a hallmark of this smaller Minnesota outfit. The carrier’s Sun Country Rewards program isn’t as large as the loyalty offerings from Southwest or Frontier, but frequent fliers can still earn free flights faster than they might expect with strategic booking.

Because Sun Country’s schedules from Spokane are seasonal and often limited to a few days per week, you’ll need to monitor their route calendar closely. If the dates align, the base fares can be exceptionally low, and the Minneapolis connection puts the entire East Coast within easy reach without paying full-service prices.

What Makes Budget Airlines Different

Budget airlines keep costs low by unbundling services that full-service carriers include. When you buy a $49 ticket on Frontier or Allegiant, you’re paying for transportation only. That means no free carry-on (beyond a small personal item), no free checked bag, no assigned seat, and no frills. Understanding this before you book prevents sticker shock when you add the extras later.

This business model gives you control. Travelers who can pack everything into a backpack that slides under the seat pay the absolute minimum. Those who want overhead bin space or a specific seat can add those options at checkout, usually for less than the equivalent full-service fare. The catch is that last-minute additions at the airport—printing a boarding pass, paying for a carry-on at the gate—cost significantly more. Always prepay for any extras online long before you get to the terminal.

For Southwest, the difference is the opposite: their base fare already includes two free checked bags and no change fees, so the total cost tends to be more transparent. Even so, Southwest’s lowest “Wanna Get Away” fares are nonrefundable, though you can always use the funds toward a future flight without penalty.

Baggage Policies and What to Expect

Nothing derails a budget travel plan like an unexpected baggage fee. Each Spokane budget carrier handles luggage a bit differently, so a quick policy check before you click “book” will save you money.

  • Frontier: Personal item is free; carry-on and checked bags cost extra, with the lowest prices available during booking. A carry-on bag purchased at the airport can cost $60 or more, compared to roughly $35–$45 online.
  • Allegiant: Similar structure. One personal item free, carry-on and checked bags cost extra. Fees vary by route, and purchasing during the initial booking is always cheapest.
  • Southwest: Two free checked bags and a free carry-on and personal item. This alone can save $80 or more round trip compared to ultra-low-cost carriers.
  • Sun Country: One free personal item. Carry-on and checked bags are available for a fee, with lower rates when bought in advance online.

If you travel often, consider a co-branded airline credit card. Many include a free checked bag or priority boarding as a cardholder perk, which can quickly outweigh the annual fee.

Timing your purchase is just as important as picking the right airline. For Spokane departures, the cheapest booking window generally falls between three and six weeks before your travel date. Closer to departure, empty seats sometimes trigger short-term deals, but that’s a gamble that can backfire during busy periods.

Fare sales follow predictable patterns. Frontier runs frequent limited-time promotions, often with deeply discounted base fares released on Tuesdays or Wednesdays. Southwest’s Wanna Get Away sales typically last for a few days and cover a wide date range. Allegiant and Sun Country promote sales through their email lists and social media, so signing up for alerts is a low-effort way to catch low fares.

Seasonally, Spokane sees lower demand for flights in late January, early February, and late September through early November, excluding holiday weeks. That’s when you’ll find the most affordable seat inventory on all four budget carriers. Summer weekends and the two weeks around Christmas are the opposite, with limited availability and higher prices regardless of airline.

Smart Packing Strategies to Save Money

If you’re flying Frontier, Allegiant, or Sun Country, the fastest way to cut costs is to pack light. A fully packed personal item—the free bag that fits under the seat in front of you—can hold a surprising amount when you use packing cubes and roll your clothes. Soft-sided backpacks that meet the airline’s dimensional limits allow you to avoid carry-on fees entirely for short trips of three to four days.

For Southwest flights, the two-free-bag perk lets you pack generously. Still, packing light on any airline means fewer things to haul and less time spent at the baggage carousel. Consider wearing your bulkiest shoes and jacket on the plane to free up space in your bag.

As a rule, always measure your bag against the airline’s posted size restrictions before you leave home. Gate-checking an oversized personal item costs far more than pre-paying for a carry-on, and a few inches can make the difference.

Spokane International Airport itself supports budget travel in a few underappreciated ways. First, the airport is compact, so you won’t need a long shuttle ride or a complicated check-in maze. Most gates for Frontier, Allegiant, Southwest, and Sun Country are located in Concourse C or the adjacent areas, all within a short walk from security. Check-in counters are easy to find, and the airport rarely suffers from the gridlock that can plague larger hubs.

Parking costs less than at most major West Coast airports. The on-site economy lots, with shuttle service, often run as low as $6 per day. If you’re being dropped off, the terminal access is straightforward and quick. The airport website at spokaneairports.net lists current security wait times, parking updates, and airline contact info—worth a quick check before you leave home.

Because GEG is smaller, you can arrive closer to departure time and still feel relaxed. Budget carriers typically board 30–40 minutes before departure, so an hour before flight time is often sufficient if you’re traveling with only a personal item and have checked in online.

Making the Most of Frequent Flyer Programs

Even budget airlines now offer loyalty programs that can accelerate your savings. Frontier’s Frontier Miles accrual system lets you earn miles on every flight, which can be redeemed for award tickets once you cross the threshold. The program favors those who fly frequently, but even occasional travelers can benefit from pooling family miles or taking advantage of status matches from other carriers.

Allegiant’s Allways Rewards program awards points per dollar spent, not per mile flown, so travelers who purchase vacation packages can earn points quickly. Southwest’s Rapid Rewards is among the most valuable programs for budget fliers because points are tied to the fare price, and award flights are easy to book with no blackout dates. Sun Country Rewards offers a similar spend-based earning structure, and occasional bonus-point promotions give your balance a nice boost.

When you stack loyalty earnings with a co-branded credit card that offers a sign-up bonus—sometimes enough for a free round-trip flight—you’re effectively lowering your overall travel cost. Look for limited-time offers, especially ahead of the peak summer and winter booking seasons.

Hidden Fees to Avoid

Budget airlines make their money by selling the base fare and charging for everything else, so the most experienced travelers know which traps to sidestep. The biggest budget-killers include:

  • Airport-printed boarding passes: Allegiant and Frontier may charge $5–$25 to print a boarding pass at the counter. Always check in online and bring a digital or pre-printed pass.
  • Gate-checked carry-ons: If your bag is too large for the personal item sizer and you didn’t pre-purchase a carry-on, you’ll pay a premium at the gate.
  • Seat assignment fees: On ultra-low-cost airlines, skipping seat selection means you’ll be assigned a random seat at check-in, often for free or a small charge. Only pay for seat selection if sitting together is essential.
  • Water and snacks: While Southwest provides free drinks and snacks, other budget carriers sell everything onboard. Bring an empty water bottle to fill after security and a few granola bars to avoid paying $4 for a soda.
  • Late baggage payment: Adding a checked bag at the airport is almost always double the online price. Pre-purchase bags when you buy your ticket or any time before check-in.

Knowing where the fees hide lets you dodge them entirely and keep that low fare exactly where you want it: low.

Final Advice for Budget Flyers in Spokane

Spokane’s budget airline lineup gives you real choice: ultra-low-cost options for the light packers and a more inclusive low-cost carrier in Southwest that often edges out the full-service airlines on both price and flexibility. The cheapest ticket isn’t always the best deal once you factor in bag fees, schedule convenience, and the value of your time.

Build the habit of comparing total trip cost across at least two airlines using a comparison tool like Google Flights, then book directly through the airline’s site once you’ve settled on the best option. Sign up for fare alerts, stay flexible with your dates, and pack only what you can carry for free. With a little planning, your next getaway from Spokane can leave your budget intact while getting you exactly where you want to go.