United States — aviation overview

Airports, airlines, and popular routes for United States (US).

United States has 608 airports operating 13747 routes in our weekly dataset, with 10 airlines on record connecting to 8+ countries.

Quick facts

Airports
608
Scheduled routes
13,747
Top airlines
10
Outbound countries
8+
Most-competitive route
HNL → LAX · 6 carriers

Top airports in United States

# Airport IATA Routes  
1 Chicago ORD 541 routes Departures →
2 Denver DEN 417 routes Departures →
3 Los Angeles LAX 385 routes Departures →
4 Dallas DFW 361 routes Departures →
5 New York JFK 361 routes Departures →
6 Atlanta ATL 359 routes Departures →
7 Orlando MCO 313 routes Departures →
8 Miami MIA 304 routes Departures →
9 Boston BOS 288 routes Departures →
10 Minneapolis MSP 287 routes Departures →

Top airlines based in United States

# Airline IATA Routes  
1 American Airlines AA 2372 routes Network →
2 Southwest Airlines WN 1874 routes Network →
3 Delta Air Lines DL 1840 routes Network →
4 United Airlines UA 1804 routes Network →
5 Allegiant Air G4 1074 routes Network →
6 Alaska Airlines AS 707 routes Network →
7 Frontier Airlines F9 672 routes Network →
8 Breeze Airways MX 642 routes Network →
9 JetBlue Airways B6 444 routes Network →
10 Spirit Airlines NK 324 routes Network →

Most-competitive routes from United States

Most-served international destinations

Where United States flies to

Frequently asked questions

How many airports are in United States?

United States has 608 airports in our dataset.

How many non-stop routes originate in United States?

United States has 13747 routes departing from its airports in our weekly dataset.

Which airlines operate most routes from United States?

Top operators by route count: American Airlines, Southwest Airlines, Delta Air Lines, United Airlines, Allegiant Air.

Which is the busiest airport in United States?

By scheduled-route count, Chicago (ORD) is the busiest airport in United States with 541 routes departing.

What is the most-connected international destination from United States?

Cancun (CUN), Mexico sees the most competition with 13 carriers serving it from United States.

Which countries do United States-based airlines fly to most?

Top outbound countries: Mexico (447 routes), Canada (334 routes), Dominican Republic (93 routes), United Kingdom (84 routes), Puerto Rico (79 routes).

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What you can do on Flight Finder

  • Search flights between any two airports with live fares.
  • By aircraft — pick a plane model (e.g. Boeing 787, Airbus A350) and see every route it flies from your origin.
  • Route map — click any airport worldwide to explore its destinations, or draw a radius to find nearby airports.
  • Global aviation safety — aviation accident database, 40,000+ records since 1980, with map and rankings by aircraft and operator.
  • NTSB safety feed — recent U.S. aviation accidents and incidents from the official NTSB CAROL database, updated daily.

Frequently asked questions

How do I search flights by aircraft type on FlightFinder?

Pick an aircraft model — Boeing 737, Airbus A320, A380, Boeing 787 Dreamliner and more — enter your origin airport, and FlightFinder shows every route that plane flies from there with live fares.

Which aircraft types can I filter by?

We support Boeing 737/747/757/767/777/787, the full Airbus A220/A319/A320/A321/A330/A340/A350/A380 family, Embraer E170/E175/E190/E195, Bombardier CRJ and Dash 8, and the ATR 42/72 turboprops.

Is FlightFinder free to use?

Search and schedules are free. Pro ($4.99/month, $39/year, or $99 one-time lifetime) unlocks the enriched flight card — on-time stats, CO₂ per passenger, amenities, live gate & weather — plus My Trips with push alerts.

Where does the route data come from?

Live schedules come from Amadeus, AeroDataBox and Travelpayouts. Observed routes (which aircraft actually flew a given city pair) are crowdsourced from adsb.lol ADS-B data under the Open Database License.