How can I find cheap domestic flights?

Trip.com offers plenty of great deals on domestic flights. To learn more, check out the Deals or Promo Code pages. Just keep in mind that discounted fares often need to be booked early—prices are usually higher if you book within a month of your departure date.

What are the top 3 domestic airlines in the U.S.?

Some of the most well-known U.S. airlines are American Airlines, Southwest, Delta, and United. You can also choose from smaller regional carriers that fly between states, such as Alaska Airlines, JetBlue, and Spirit.

Do I need a passport to fly domestically in the U.S.?

American citizens don’t need a passport for domestic flights. You can use a passport or any other TSA-approved ID. However, you’ll always need a passport for international travel.

LCC stands for Low-Cost Carrier—a budget airline that focuses on low fares. Popular examples include Peach, Vanilla Air, Spring Airlines, and Jetstar. These airlines keep prices down by reducing some traditional services, such as charging for seat selection and checked bags, and by fitting more seats on each plane by reducing legroom.

How early should I arrive for a domestic flight in the U.S.?

Check-in times for U.S. domestic flights vary by airline. The TSA recommends arriving at least 2 hours before your flight for check-in, baggage drop, and security. Each airline has its own cut-off time, so check with your airline if you’re unsure. American Airlines: 1.5 hours before departure; closes 45 minutes prior Delta Airlines: 2 hours before departure; closes 30 minutes prior Spirit Airlines: 2 hours before departure; closes 30 minutes prior Alaska Airlines: Check-in closes 40 minutes before departure

Am I able to change or cancel my domestic flight?

You can change or cancel a ticket only if the airline’s policy allows it. To do so, go to the flight bookings page, select the change or cancel option, choose the passengers and flight segment, and submit your request. Additional fees may apply depending on the airline’s rules. If your flight has been rescheduled, you can submit an involuntary cancellation request. For full details, check the airline’s customer support pages.

Can I reserve a seat on my flight?

While booking: After choosing your flight and entering passenger information, you may see a "Seat selection" option on the next page. If so, you can select your seat. Please note that once you select a seat and complete your booking, it cannot be changed or canceled. After booking: For unused tickets, you can select seats by going to "Flight bookings", choosing your booking, opening the booking details page, and selecting "Check-in & seats".

Find Affordable U.S. Domestic Flights & Travel Deals

Find Cheap Domestic Flights in the U.S.

Explore popular domestic destinations across the U.S. at the lowest prices

New York

Miami

Tue, Dec 8 | Nonstop | American Airlines

From €174

New York

Fort Lauderdale

Thu, Nov 19 | Nonstop | Allegiant Air

From €71

New York

Atlanta

Thu, Nov 12 | Nonstop | Frontier Airlines

From €75

New York

Orlando

Tue, Dec 15 | Nonstop | Frontier Airlines

From €50

New York

Los Angeles

Thu, Oct 29 | Nonstop | Alaska Airlines

From €184

New York

Las Vegas

Thu, Nov 12 | Nonstop | Jetblue Airways

From €178

Los Angeles

Las Vegas

Wed, Dec 9 | Nonstop | Frontier Airlines

From €18

Chicago

Las Vegas

Tue, Dec 1 | Nonstop | Frontier Airlines

From €80

Houston

Las Vegas

Wed, Nov 18 | Nonstop | Frontier Airlines

From €70

Explore popular domestic routes across different regions

Southwest

Midwest

West Coast

Southeast

Northeast

FAQs about Domestic Flights

How can I find cheap domestic flights?
Trip.com offers plenty of great deals on domestic flights. To learn more, check out the Deals or Promo Code pages. Just keep in mind that discounted fares often need to be booked early—prices are usually higher if you book within a month of your departure date.
What are the top 3 domestic airlines in the U.S.?
Some of the most well-known U.S. airlines are American Airlines, Southwest, Delta, and United. You can also choose from smaller regional carriers that fly between states, such as Alaska Airlines, JetBlue, and Spirit.
Do I need a passport to fly domestically in the U.S.?
American citizens don’t need a passport for domestic flights. You can use a passport or any other TSA-approved ID. However, you’ll always need a passport for international travel.
What is LCC?
LCC stands for Low-Cost Carrier—a budget airline that focuses on low fares. Popular examples include Peach, Vanilla Air, Spring Airlines, and Jetstar. These airlines keep prices down by reducing some traditional services, such as charging for seat selection and checked bags, and by fitting more seats on each plane by reducing legroom.
How early should I arrive for a domestic flight in the U.S.?
Check-in times for U.S. domestic flights vary by airline. The TSA recommends arriving at least 2 hours before your flight for check-in, baggage drop, and security. Each airline has its own cut-off time, so check with your airline if you’re unsure. American Airlines: 1.5 hours before departure; closes 45 minutes prior Delta Airlines: 2 hours before departure; closes 30 minutes prior Spirit Airlines: 2 hours before departure; closes 30 minutes prior Alaska Airlines: Check-in closes 40 minutes before departure
Am I able to change or cancel my domestic flight?
You can change or cancel a ticket only if the airline’s policy allows it. To do so, go to the flight bookings page, select the change or cancel option, choose the passengers and flight segment, and submit your request. Additional fees may apply depending on the airline’s rules. If your flight has been rescheduled, you can submit an involuntary cancellation request. For full details, check the airline’s customer support pages.
Can I reserve a seat on my flight?
While booking: After choosing your flight and entering passenger information, you may see a "Seat selection" option on the next page. If so, you can select your seat. Please note that once you select a seat and complete your booking, it cannot be changed or canceled. After booking: For unused tickets, you can select seats by going to "Flight bookings", choosing your booking, opening the booking details page, and selecting "Check-in & seats".

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Find Cheap Domestic Flights in the U.S.