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Cheap Domestic Flights within the USA

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Easily search and buy domestic flights within the USA with Alternative Airlines. Discover our guide to domestic and regional flights, as well as some FAQs…

Which airlines fly within the USA?

There are a number of airlines that fly within the USA, with both large international carriers that offer connections to other parts of the world and smaller regional airlines that fly state-to-state.

Alaska airlines

Alaska Airline logo

Alaska Airlines is one of the larger airlines in the US, offering internal flights from its main bases at Seattle–Tacoma International Airport (SEA), Portland International Airport (PDX), Ted Stevens Anchorage International Airport (ANC) and Los Angeles International Airport (LAX), as well as several other destinations.

The airline offers flight to destinations in Alaska, Arizona, California, Colorado, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Kansas, Louisana, Maryland, Massachusetts, Michigan, Minnesota, Missouri, Montana, Nebraska, Nevada, New Jersey, New York, North Carolina, Ohio, Oklahoma, Oregon, Pennsylvania, South Carolina, Tennessee, Texas, Utah, Virginia, Washington and Wisconsin.

Allegiant Air

 

Allegiant Airlines offers flights all around the US. It has a number of hubs and flies all across the country, however, has a strong focus on flying to destinations including Asheville (NC), Bellington (Washington), Cincinnati (Ohio), Ft. Lauderdale (FL), Fort Walton Beach (FL), Grand Rapids (Michigan), Indianapolis (Indiana), Knoxville (TN), Las Vegas (Nevada), Los Angeles (CA), Myrtle Beach (SC), Oakland (CA), Orlando Sanford (FL), Phoenix (AZ), Pinellas County (FL), Pittsburgh (Pennsylvania) and Punta Gorda (FL).

American Airlines

Logotipo de American Airlines

American Airlines is one of the world's largest carriers. It has a massive domestic route network, flying to almost every state. It has hubs in Phoenix, Los Angeles, Washington DC, Miami, Chicago, New York City, Charlotte, Philadelphia and Dallas and flies to more than 100 destinations within the US. 

Aerolíneas delta

Logotipo de Delta Airlines

Delta is one of the biggest carriers in the US, and — along with its regional subsidiary Delta Connection — one of the most complete domestic route networks in the country. It flies to over 200 destinations within the US in total.

Aerolíneas de frontera

Frontier Airlines is a low-cost US carrier that flies to more than 100 destinations across the US, with hubs in Atlanta, Chicago, Cleveland, Cincinnati, Las Vegas, Miami, Orlando, Philadelphia, Raleigh/Durham and Trenton.

Aerolíneas hawaianas

Hawaiian Airlines logo

Hawaiian Airlines is the main airline in the US connecting Hawaii with the rest of the country and is based at Daniel K. Inouye International Airport (HNL). As well as flying from Hawaii to other states in the US, the airline also offers flights to several destinations on the island.

Jetblue

JetBlue logo

JetBlue is a US airline that has its main base at John F. Kennedy International Airport and flies to more than 80 destinations across 30 states.

Southwest Airlines

Southwest Airlines logo

Southwest Airlines is a low-cost airline with bases in Atlanta, Baltimore/Washington, D.C., Chicago, Dallas, Denver, Houston, Las Vegas, Los Angeles, Oakland, Orlando and Phoenix. Not only is the airline the largest low-cost carrier in the US, but it's also the largest airline in the world.

Spirit Airlines

Spirit Airlines is a US airline that flies all throughout the US. It flies to around 50 destinations overall, with bases at Fort Lauderdale, Orlando, Chicago, Detroit, Las Vegas and Atlantic City.

Aerolíneas Unidas

Logotipo de United Airlines

United Airlines and — in particular — its domestic subsidiary, United Express, flies to over 90 destinations across the US. It has hubs at Denver, Chicago and Washington D.C but flies all across the country and reaches a total of over 30 states.

Why book domestic flights in the USA?

Whether you are travelling home for the holidays, booking a holiday or travelling for work, domestic flights could be the travel option for you. There is so much to see and do in the USA, that sometimes a ‘staycation’ is the perfect option for you to keep costs down rather than travelling internationally.

There are so many different places and cities to experience within this one country, whether you are wanting a weekend city break in Los Angeles, a culture trip to New Orleans or a relaxing beach holiday in the Florida Keys. A domestic flight can be the perfect holiday or get away that you need. Use our search engine now to explore the different places that you could get away to on your next break. Commuter flights are often domestic, as they depart from a small regional airport and land after a short flight in a larger airport.

 

man on bike followed by child, both waving American flags

Internal USA Flights Check-In Time

Internal USA flight check-in time will always depend on the airline that you're flying on and your airport of departure (if you choose to check-in at the airport).

However, generally, online check-in opens 24 hours before scheduled flight departure time and closes one hour before. If you check-in at the airport, most domestic flights within the USA close check-in around 30—45 minutes before scheduled flight departure time.

Take a look at the check-in times for these airline flying domestically within the USA:

Alaska airlines

Online: Available between 24—1 hour before flight. 

Airport: Closes 40 minutes before flight. 

Allegiant Air

Online: Available between 24 hours—45 minutes before flight.

Airport: Closes 45 minutes before flight. 

American Airlines

Online: Available between 24 hours—45 minutes before flight.

Airport: Closes 45 minutes before flight.

Aerolíneas delta

Online: Available from 24 hours before flight up until 30—60 minutes (depending on route flown).

Airport: Closes 30 minutes before flight at most airports. At some other airports, closes between 30—60 minutes before.

Aerolíneas de frontera

Online: Available up until 60 minutes before flight departure time.

Airport: Closes 45 minutes before flight departure time.

Aerolíneas hawaianas

Online: Available from 24—1 hour before flight time.

Airport: Closes 30 minutes before flight for Neighbor Island destinations and 45 minutes before flight for North American destinations.

Jetblue

Online: Available between 24 hours—90 minutes before flight departure time.

Airport: Closes 30 minutes before flight departure time on most flights. 40 minutes before flight departure time on flights from Fort Lauderdale (FLL), New York (JFK) and Tampa (TPA).

Southwest Airlines

Online: Available between 24—1 hour before flight departure time.

Airport: Closes 30 minutes—1 hour before flight departure time.

Spirit Airlines

Airport: Available between 24–1 hour before flight departure

Online: Closes 30 minutes before flight departure time. 

Aerolíneas Unidas

Airport: Airport check-in is available between 24—1 hour before flight departure time.

Online: Closes 30 minutes before without checked baggage. Closes 45 minutes before with checked baggage.

Rutas Populares

Flights to Hawaii

Best Airport to Fly Into:

The major airport in Hawaii is Daniel K. Inouye International Airport (HNL), which is located on the island of Oahu. This is also known as Honolulu International Airport.

Airlines that fly there:

Airlines that fly into Honolulu International Airport from domestic locations in the US include Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, Sun Country Airlines and United Airlines.

 

Flights to Las Vegas

Best Airport to Fly Into:

McCarran International Airport is the best airport for flying into Las Vegas

Airlines that fly there:

There are a number of airlines that fly into Las Vegas from elsewhere in the US. These include Allegiant Air, American Airlines, Contour Airlines, Frontier Airlines, JSX, Southwest Airlines, Spirit Airlines and United Express, among many others.

 

Flights to Miami

Best Airport to Fly Into:

To get to Miami, the best option is to fly into Miami International Airport (MIA). This airport operates over 1,000 flights a day to 167 destinations, many of which are domestic destinations.

Airlines that fly there:

There are many airlines which fly within the USA to Miami Airport. These include American Airlines, Delta Air Lines, Frontier Airlines, Sun Country Airlines and United Airlines.

 

Flights to Florida

Best Airport to Fly Into:

There are many airports which have domestic flights from elsewhere in the US into the state of Florida. To fly into Miami, please see above. To fly into Orlando, you’ll need to use Orlando International Airport. For Fort Lauderdale, you can use Fort Lauderdale - Hollywood International Airport. For Tampa; Tampa International Airport.

Airlines that fly there:

All the major American carriers fly into the majority of these airports from domestic US destinations. Airlines that commonly fly to Florida include Alaska Airlines, Delta, Frontier, JetBlue, Silver Airways, Spirit Airline and United.

What are domestic flights?

Statue of Liberty Icon

Domestic flights, also known as internal flights, are flights which depart and land in the same country.

Domestic flights are much more popular in larger countries such as the USA. An example of a domestic flight in the USA is one which may depart from New York and land in Los Angeles, therefore staying within the USA.

Internal flights are often cheaper than their international alternatives, due to their typically shorter travel time and costs. Some common airlines that run domestic flights within the USA are Delta, Spirit Airlines, Alaska Airlines and American Airlines.

Search for domestic U.S. flights using the Alternative Airlines search bar at the top of the page to see what cheap domestic flights we offer. Perhaps you want to visit lots of cities within America, in which case our multi-city flight planner will be very handy! If you prefer to fly directly from one city to another without any stopovers and may want to check out our direct flight guide.

Preguntas frecuentes

Do I need a passport for domestic flights in the USA?

You don’t need a passport when flying domestically within the USA, however you will need some form of acceptable photo identification(ID) for adult travellers aged over 18. This can include a passport or passport card, driver's license or a DMV-issued photo ID card.

However, identification requirements will be changing and getting more secure as of octubre 2020. If you are planning on using a state-issued ID or license when flying domestically within the USA, they will have to be Real-ID compliant. This has already been enforced in 28 states, including Texas, Arizona and Florida, are beginning to require a Real-ID approved driver’s license, which will roll out to the whole of the USA in octubre 2020.

Children under 18 are not required to provide ID when flying domestically and travelling with an adult. It may be a good idea to contact the airline you are travelling with to ensure that they don’t have any additional policies, or be prepared to have identification ready to show in case you are asked.

How early do I need to arrive for domestic flights in the USA?

Check-in times for domestic flights in the USA vary depending on the airline. The TSA (Transportation Security Administration) recommends arriving at the airport 2 hours prior to departure for domestic flights to allow time for check-in, bag drop and security. However, different airlines have different cut-off times for check-in so be sure to check with the airline you are flying with if you are unsure.

We have compiled a list of some common airlines which fly popular domestic routes, along with their recommended arrival time for check-in for domestic flight within the USA:

American Airlines - 1.5 hours, closing 45 minutes prior to departure

Delta Airlines - 2 hours, closing at least 30 minutes prior to departure

Spirit Airlines - 2 hours, closing at least 30 minutes prior to departure

Alaska Airlines - No later than 40 minutes prior to departure

United Airlines - At least 30 minutes without checked baggage and at least 45 minutes with checked baggage.

When is the best time to find cheap domestic flights?

As explored in our blog regarding the cheapest day to buy flights, there is no set time or day to buy the best domestic flights in the USA. Regardless, this blog provides many tips which can make sure that you are getting the best deal using Alternative Airlines. You can also get cheap domestic flights in the USA by choosing to buy a red eye flight. Because of their obscure flying times, red eye flights are often cheaper than other flights.

If you're looking for an affordable way to pay for domestic flights within the USA, why not choose Affirm as a payment method? Affirm allows you to pay off your flights in monthly payments.

How much baggage can I take on domestic flights within the USA?

Most airlines will offer free hand luggage when travelling domestically within the USA. Some also offer one piece of checked baggage, typically weighing up to 23kg.

However, this is very general and it is best to check with the airline that you are travelling with to see their individual policies regarding baggage for domestic flights in the USA, checking both weights and dimensions permitted as part of the baggage rules.

Can I book domestic flights online?

Alternative Airlines offer online booking for your domestic flights. Use our search bar to search and buy domestic flights with different airlines to destinations across the USA.


Domestic Flights on finance

Do you want a finance option to make your domestic flights within the USA more affordable?Affirm is a payment option available to our US customers which gives the option to split your payments into manageable monthly installments.

Regional Flights
in the USA

A regional flight is a domestic flight that tends to stay around a focus city, or region within the country. For example, region flights around Chicago in the USA.

There are a number of airlines which focus their operations on providing regional flights, and can be both subsidiaries of larger airlines, or independent regional airlines. These airlines often operate on smaller, regional aircraft, and are sometimes called commuter planes.

Regional Airlines in the USA:

Alaska Horizon

Águila americana

Delta Connection

Endeavor Air

Enviado de aire

Mesa airlines

Aerolíneas de Mokulele

Ohana by Hawaiian

Penair

Piedmont Airlines

PSA

Ravn Connect

Republic Airways

SkyWest Airlines

United Express

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