Best Airlines to Mexico: Routes, Fares and Baggage in 2026 

The best airlines flying to Mexico in 2026 are Aeromexico, American Airlines, United Airlines, Delta, Southwest, Volaris, and Viva Aerobus. Round-trip fares start from $172, with direct US-to-Mexico routes available from over 30 US cities. Note: Spirit Airlines permanently ceased all operations on May 2, 2026, removing one of the most popular budget options from the market.

Millions of travelers fly to Mexico from the US every year, and in 2026, the choices are more complex than ever. Baggage fees have hit record highs across every major carrier. A legacy ultra-low-cost airline has shut down for good. And new routes are opening up just as others disappear. Picking the wrong airline can quietly add hundreds of dollars to your trip before you’ve even packed.

What Are the Best Airlines to Fly to Mexico in 2026?

The best airlines flying to Mexico in 2026 include Aeromexico, American Airlines, United Airlines, Delta Air Lines, Southwest Airlines, JetBlue, Volaris, and Viva Aerobus. The right choice depends on your departure city, destination, baggage needs, and budget. Aeromexico offers the widest Mexican network; Southwest is the best for free bags on select routes; US legacy carriers dominate direct connections.

Here’s a quick comparison to orient your decision:

Which Airlines Fly Direct to Mexico City from the US?

Direct flights to Mexico City (Benito Juárez International Airport, MEX) from the US are operated by Aeromexico, American Airlines, United Airlines, Delta Air Lines, and Volaris. American flies nonstop from Dallas (DFW) and Philadelphia (PHL). United connects Mexico City from Chicago (ORD), Houston (IAH), and other hubs. Delta operates from Atlanta (ATL). Aeromexico covers the broadest range of US gateways to MEX.

Mexico City is the country’s main international hub and the trickiest to fly into on a budget. Here’s how the major options compare:

• Aeromexico: Daily nonstop service from New York (JFK), Los Angeles (LAX), Dallas (DFW), Houston (IAH), Chicago (ORD), Miami (MIA), and more. Business class is frequently discounted. Free alcohol served in economy   a perk no US carrier matches on this route.
• United Airlines: Chicago to Mexico City round-trips available from $431 (as of mid-2026). Strong frequent flyer earning on MileagePlus.
• American Airlines: Dallas to Mexico City from ~$983 round-trip in business class. Economy Main Cabin fares are considerably lower and include a free first checked bag on international routes (Basic Economy excluded).
• Volaris: Offers low base fares to Mexico City from Los Angeles and Chicago, but fees for bags and seat selection can triple the sticker price.

Content gap most competitors miss: Mexico City now has a second international airport  Felipe Ángeles International (NLU)  about 25 miles north of the city center. Aeromexico and a few domestic carriers use it for some routes. Always confirm which airport your flight uses before booking.

Cancún vs. Mexico City vs. Los Cabos: Which Destination Has the Best Flight Options?

Cancún consistently wins on price and frequency. During COVID, it briefly became the busiest airport in the world. Today it remains in the global top 10 by passenger volume, meaning airlines compete aggressively for seats  and that competition keeps fares lower than almost anywhere else in Mexico.

Los Cabos is the one place where Southwest shines for bags (two bags free on select fares), making it a hidden cost winner for families.

Mexico City is best served by legacy carriers and Aeromexico. Budget options exist via Volaris, but fees erode the savings quickly. If you’re flying into CDMX for business or want genuine comfort, Aeromexico’s frequently discounted business class is worth checking before you default to economy.

What Are the 2026 Baggage Fees for Flights to Mexico?

Flights to Mexico follow the same baggage fee structure as domestic US flights  no international free-bag exceptions apply for economy passengers on short-haul routes. Every major US carrier raised fees in April 2026, and Southwest ended its iconic “Bags Fly Free” policy on May 28, 2025 after 54 years.

Key 2026 fee structure (per bag, each way, prepaid online):

Critical note: Frontier’s weight limit is 40 lbs, not 50 lbs. A bag weighing 41–50 lbs incurs a $75 overweight fee on top of the bag fee itself. Spirit Airlines  previously one of the most commonly cited options for cheap Mexico flights  permanently ceased all operations on May 2, 2026 after a failed $500 million federal bailout. It was the first major US airline to shut down in 25 years.

What Is the Safest Airline to Fly to Mexico in 2026?

According to AirlineRatings.com’s 2026 World’s Safest Airlines report, which evaluated 320 airlines on incident rates, fleet age, pilot training, and international safety audits, the safest US carriers flying to Mexico are Alaska Airlines (ranked #15 globally, full-service), Delta Air Lines (#23), and American Airlines (#24). Among low-cost carriers flying to Mexico, Southwest ranked #6 globally, JetBlue ranked #14, and Volaris ranked #22  the only Mexican-based airline on the 2026 top 25 list.

Key safety takeaways:

• Aeromexico did not appear on the 2026 AirlineRatings top 25, though it maintains international safety certifications
• Volaris is the only Mexican carrier ranked among the world’s top 25 safest low-cost airlines in 2026
• AirlineRatings notes that the margin between ranked airlines is extremely narrow  all listed carriers are considered world leaders in aviation safety

What Are the Best Cheap Flights to Mexico from the US?

Cheap flights to Mexico from the US start from $55 one-way and $172 round-trip according to Skyscanner data for 2026. The cheapest fares consistently appear on routes to Cancún, given its extremely high flight frequency. Budget airlines like Volaris, Viva Aerobus, and Frontier advertise very low base fares, but total costs including seat selection and baggage can triple or quadruple the headline price.

Practical tips to find genuine cheap flights to Mexico:

• Book Volaris or Viva Aerobus only if you’re traveling with just a personal item  their baggage fees are significant. A Viva Aerobus bundle including a seat, carry-on, and checked bag was recently $197 one-way from a Texas city to Mexico vs. $367 on United for the same route with similar inclusions. The math sometimes works, but only if you build out the total cost.
• Southwest is ideal for Cancún, Cozumel, Puerto Vallarta, or Los Cabos if bags are a factor. Southwest only serves these four Mexican destinations but allows free bags for Business Select, A-List Preferred, and Rapid Rewards cardholders (and up to 8 companions on the same reservation).
• Fly mid-week and avoid peak holiday windows. August is typically the cheapest month to visit Mexico according to Skyscanner fare data.
• Get the co-branded credit card for your primary airline. The Southwest Rapid Rewards Plus card ($69/year) covers one free bag for you and up to 8 companions  potentially $720 in savings per round trip for a family. The United Explorer Card ($95/year) covers one bag for you and one companion.
• Compare final prices, not advertised fares. Use Google Flights or Skyscanner and manually add bag and seat fees before comparing legacy vs. budget carrier totals.

Route Guide: Which Airlines Serve Which Mexican Destinations?

• Cancún (CUN): American, Delta, United, JetBlue, Southwest, Frontier, Volaris, Viva Aerobus. The most competitive route; expect the lowest fares and most departure times. Nearly every US carrier flies here.
• Mexico City (MEX): Aeromexico, American, Delta, United, Volaris. Fewer LCC options; legacy and Aeromexico dominate. Check both MEX and NLU (Felipe Ángeles) when searching.
• Los Cabos / Cabo San Lucas (SJD): American, Delta, United, Southwest, Alaska. Southwest is especially competitive here with bag benefits intact.
• Puerto Vallarta (PVR): American, Delta, United, Southwest, Alaska, Frontier. West Coast travelers have strong direct options from LA, San Francisco, and Seattle.
• Guadalajara (GDL): American, Delta, United, Aeromexico, Volaris, Viva Aerobus. Second-largest Mexican city; good connectivity from Texas, California, and Chicago.
• Smaller cities (Oaxaca, Mazatlán, San Luis Potosí, Morelia): Aeromexico is your best bet for connections, though Volaris and Viva Aerobus are expanding routes to secondary cities rapidly.

Frequently Asked Questions

What is the cheapest round-trip flight to Mexico from the US in 2026?
Round-trip flights to Mexico start from $172 according to Skyscanner 2026 data. One-way fares can drop as low as $55. Cancún consistently offers the lowest fares due to the volume of competing airlines on that route.

Which airlines offer direct flights to Mexico City from the US?
Aeromexico, American Airlines, United Airlines, Delta Air Lines, and Volaris all operate nonstop flights from US cities to Mexico City (MEX). Key US gateways include Dallas, Chicago, Houston, New York, Los Angeles, and Miami.

Does Southwest Airlines still fly to Mexico in 2026?
Yes. Southwest serves four Mexican destinations: Cancún, Cozumel, Puerto Vallarta, and Los Cabos. It ended its “Bags Fly Free” policy in May 2025, but Business Select, A-List Preferred, and Rapid Rewards cardholders still receive free checked bags.

Is Spirit Airlines still flying to Mexico in 2026?
No. Spirit Airlines permanently ceased all operations on May 2, 2026, following two bankruptcies and a failed $500 million federal bailout. It was the first major US airline to shut down in 25 years.

What is the safest Mexican airline to fly in 2026?
Volaris is the only Mexican-based carrier ranked among AirlineRatings.com’s top 25 safest low-cost airlines worldwide for 2026, placing #22. Among US carriers flying to Mexico, Alaska Airlines (#15), Delta (#23), and American (#24) rank highest in safety.

What are the baggage fees for flights to Mexico in 2026?
Most US legacy carriers charge $45–$50 for a first checked bag and $55–$60 for a second (prepaid online). Frontier charges $53–$99+, and its weight limit is 40 lbs versus 50 lbs for legacy carriers. Mexico flights follow the same fee structure as domestic US routes.

Which airline flies to the most destinations in Mexico?
Aeromexico operates the broadest network within Mexico, serving 30+ cities including smaller destinations like Puerto Escondido, Zihuatanejo, and Morelia that US carriers don’t reach. Volaris is expanding rapidly and now serves 40+ Mexican cities.

Is it cheaper to fly Volaris or American Airlines to Mexico?
It depends on baggage. A Viva Aerobus bundle (seat + carry-on + checked bag) was quoted at $197 one-way on a Texas-to-Mexico route versus $367 on United with similar inclusions. However, if you only carry a personal item, the gap widens further in the budget carrier’s favor. Always compare total costs, not advertised base fares.

Does Mexico City have two international airports?
Yes. Mexico City is served by Benito Juárez International Airport (MEX), the primary hub, and Felipe Ángeles International Airport (NLU), located roughly 25 miles north of the city center. Some Aeromexico and domestic routes operate from NLU. Confirm which airport your booking uses before finalizing.

What is the best month to find cheap flights to Mexico from the US?
August is generally the cheapest month to fly to Mexico according to Skyscanner fare data for 2026, despite being summer travel season. Holiday windows (Thanksgiving, Christmas, spring break) consistently produce the highest fares. Setting price alerts 6–8 weeks before your travel date tends to capture the best deals.