Southwest will operate eleven international routes between November 2026 and June 2027. One of them is Las Vegas–Puerto Vallarta, which starts on November 1, 2026. However, no fares have been published yet. And without a real price, an announcement is just news, not a travel decision.
This article isn't selling you anything. It gives you the method to compare the nonstop flight against the layover yourself once fares come out. You can copy all the formulas and fill them in with your own numbers. Every price you'll see here is marked as hypothetical and doesn't represent any real fare. Whatever isn't confirmed, we leave as is and point you to the official source.
What was announced and what's still unconfirmed
🔗 Recommended · AviasalesHere's what has been verified as of today, October 21, 2026:
- Southwest is launching eleven international routes between November 2026 and June 2027.
- One of them is Las Vegas–Puerto Vallarta, starting November 1, 2026.
- Volaris is launching the Raleigh-Durham–Guadalajara route.
- The United States lifted restrictions on new routes from Mexico City airports.
What still isn't verified (and so we won't make it up):
- Launch or promotional fares for any route.
- Exact frequencies, schedules and operating days.
- Changes Rapid Rewards will make in 2027 and how points will be redeemed on these routes.
- The final checked baggage policy on international flights for this season.
The primary source remains southwest.com/international. That's where you should confirm your airport, your dates and the real price before buying any ticket. The title mentions Puerto Vallarta, Liberia and Punta Cana because they're the most appealing beach destinations in the expansion. Even so, don't assume your city has a nonstop route until you see it on the site.
Why secondary cities matter
For a long time, leaving a mid-size city for the beach meant a mandatory layover in Dallas, Houston, Denver or Chicago. That added hours, the risk of missing your connection and almost always a second bag fee.
A nonstop route from your airport changes that equation. It takes away stress and gives you back real vacation time. But it isn't always the cheapest option: well-built layovers can come out cheaper if you travel light and stay flexible.
That's why the right question isn't "nonstop or layover?" The useful question is how much each extra hour and each risk you avoid is worth to you. You only get that answer by running the full numbers.
Nonstop vs. layover: the door-to-door total cost formula
Comparing only the ticket price is the most expensive mistake people make. A cheaper ticket with a layover can end up costing hundreds of dollars more once you add everything up. We use the same total cost formula we apply in our Tulum guides and other destinations:
Total cost = ticket + baggage + transfers + meals + value of your time + cost of risk
Here's how it breaks down in practice:
| Component | Nonstop flight | Flight with layover | What to check |
|---|---|---|---|
| Ticket per person | Fare published at southwest.com/international | Combination of airlines or segments | Final price with taxes included |
| Checked baggage | Current Southwest policy | Each airline's policy if you switch | Cost per bag, round trip |
| Transfer to the airport | Your usual airport or the new one | May be a different airport | Distance, time and real driving cost |
| Meals in transit | Normally none | One or more during the connection | Your usual airport spending |
| Total travel hours | Flight plus airport time only | Flight + connection time | Full itinerary duration |
| Risk of a missed connection | Almost none | High if you buy separate tickets | Whether it's a single ticket or not |
There are two rules you shouldn't skip:
1. If you buy two separate tickets, the airline has no obligation to protect you if you miss the connection. With a single ticket, it does. That difference has a real cost, even if it doesn't show up in the fare.
2. The value of your time isn't abstract. Pick an honest number (many of us put it between $70 and $120 per hour on vacation), multiply it by the difference in hours and add it to the total cost.
Your departure airport counts too
Sometimes the nonstop flight leaves from an airport ninety minutes or more from your home. Then the "savings" disappear into gas, tolls, parking and extra fatigue.
Before getting excited about a price, enter your address at calcularruta.com and get real numbers for distance, time and approximate fuel cost. This step often completely changes which option ends up winning.
Baggage and fares: what to check before comparing
This is where almost all comparisons fall apart. Two fares that look the same can be very different once you add bags, changes and cancellations.
Before deciding, answer this list honestly:
- How many checked bags will you take per person, round trip?
- Does the cheapest fare include a bag, or only a personal item and carry-on?
- How much does it cost to change dates or cancel on each fare?
- What does each fare tier really include (Wanna Get Away, Anytime, etc.)?
- Are you comparing both options with exactly the same baggage conditions?
Only when everything is aligned can you compare fairly. Otherwise, you're comparing things that aren't alike.
About Rapid Rewards and the 2027 season: check directly in your account or at southwest.com/international. There are no confirmed details yet and we won't speculate.
Three scenarios with formulas
All the numbers below are hypothetical and deliberately made up so you can see how the logic works. Replace each variable with real prices when they come out.
Scenario 1: couple on a long weekend
Two adults, one shared bag, little free time and a strong desire to make the most of the beach.
Formula: Total cost = (ticket × 2) + bags + transfers + meals + (extra hours × value of time)
Hypothetical example, not real prices:
| Item | Nonstop (hypothetical) | Layover (hypothetical) |
|---|---|---|
| Tickets (two people) | $680 | $520 |
| One bag round trip | $80 | $80 |
| Meals in transit | $0 | $45 |
| Extra travel hours | 0 | 6 |
| Value of time ($80/hour) | $0 | $480 |
| Adjusted total cost | $760 | $1,125 |
Here the nonstop wins by a wide margin once you include the real value of time. The layover saves $160 on tickets, but the six extra hours cost $480 and wipe out that advantage by a wide margin. For a long weekend, it's rarely worth it.
Scenario 2: family of four with two kids
Two adults and two kids, three bags and a high priority on minimizing stress and risk.
Formula: Total cost = (ticket × 4) + bags + transfers + (meals × 4) + (extra hours × family value of time) + cost of risk
Hypothetical example, not real prices:
| Item | Nonstop (hypothetical) | Layover (hypothetical) |
|---|---|---|
| Tickets (four people) | $1,560 | $1,240 |
| Three bags round trip | $240 | $240 |
| Meals (four people) | $0 | $120 |
| Extra travel hours | 0 | 5.5 |
| Family value of time ($100/hour) | $0 | $550 |
| Adjusted total cost | $1,800 | $2,150 |
With kids, the gap widens. The nonstop comes out $350 cheaper once you add time, and we still haven't counted risk, which this table doesn't include. Missing a connection with a family isn't measured in money alone.
Scenario 3: traveler with family in the U.S.
If you have relatives near another airport, you can use their home as a base, save on a hotel and fly out of that airport.
Formula: Total cost = ticket + baggage + transfer + lodging + value of time − lodging savings
Hypothetical example, not real prices:
| Item | From your city with layover | From family's city with nonstop |
|---|---|---|
| Ticket per person | $275 | $330 |
| Transfer and parking | $40 | $95 |
| Lodging the night before | $110 | $0 (with family) |
| Value of extra time | $360 (4.5 h) | $90 (one hour of driving) |
| Adjusted total cost | $785 | $515 |
Here the nonstop from your family's airport is the cheapest and least stressful option, even though the ticket looks $55 more expensive. This kind of scenario only shows up when you run the full numbers.
Volaris, Guadalajara and the change at CDMX airports
Southwest's announcement comes alongside two other relevant pieces of news. Volaris is launching the Raleigh-Durham–Guadalajara route, which opens a nonstop option from the eastern United States to Jalisco and the Pacific coast. In addition, the lifting of restrictions at Mexico City airports could bring more flights and more competition in the coming months.
That's why, besides Southwest's nonstop, it's worth checking well-built layovers through Guadalajara or CDMX. Sometimes a short, protected connection competes on both price and comfort. Always use the same total cost formula to compare.
When to choose the nonstop and when the layover
The nonstop is usually the best decision when:
- You're traveling with kids, babies or older adults.
- You have few vacation days and every hour on the beach counts.
- You're carrying several bags or special equipment.
- The price difference against the layover is less than what your time is worth.
The layover usually wins when:
- The fare difference is large (more than $150-200 per person).
- You're traveling with carry-on only and have total schedule flexibility.
- The layover ticket is a single, protected ticket.
- The nonstop's airport forces you into a long, tiring transfer.
If none of these conditions clearly favors you, don't buy the nonstop just because it's new. The numbers have to add up.
Verdict: what to do today with this information
Southwest's announcement is very good news for anyone who lives outside the major connecting hubs. It expands your real options for a beach escape. But today there are still no verified prices that justify buying without running the numbers.
The smartest thing you can do now is:
1. Go to southwest.com/international and confirm whether your airport appears among the eleven new routes and which dates are available.
2. Price the nonstop (when it exists) and at least one solid layover alternative for the exact same dates.
3. Fill in the total cost table with your real numbers, including transfers, bags and the value you place on your time.
4. Be honest about how much one hour of your vacation is worth. That number usually decides everything.
5. Check prices several times before buying. Fares on newly announced routes tend to move quite a bit in the first few weeks.
Run the numbers for your route with Osi
If you already have a departure airport, a destination and dates in mind, at ThePlan you can run that information through the formula and see which option wins in your case. Osi helps you organize the components, spot costs you might miss and compare nonstop vs. layover under the same conditions.
The best trip isn't the most expensive or the cheapest — it's the best reasoned.
Ready to plan your trip? Talk to Osi on Telegram and we'll help you with the numbers for YOUR route.