Getting around United States: trains, buses, driving and domestic flights

The United States is too large for one rule. Match the mode to the distance, then to the season and the price you are willing to pay.

Under about 300 km, a car, coach or train usually wins once you count airport time. Between 300 and 600 km it depends on the corridor: the Northeast has fast trains, most other regions do not. Over about 600 km, flying is the default.

Season changes the answer. Summer and the December holidays push domestic fares and rental cars up, and national-park roads and lodges fill months ahead. Winter closes some mountain passes and park access roads — check before you commit to a driving loop.

Flights. Book 3–8 weeks ahead for domestic routes; fares climb inside two weeks. Basic economy often excludes a carry-on bag and seat choice, so compare the total, not the headline. Arrive 90 minutes before departure for security, longer at JFK, LAX and ORD at peak times. TSA screening is standard; liquids follow the usual 100 ml rule.

Trains. On the Northeast Corridor, buy early: prices climb close to departure, and Acela costs much more than Northeast Regional for 20–30 minutes saved. Long-distance trains such as the California Zephyr, Coast Starlight and Empire Builder run once a day on most routes and can be hours late, so treat them as a scenic experience, not transport. A USA Rail Pass covers multiple legs — check the current price and rules.

Driving. Compare the base rate with insurance, fuel, tolls and parking, which can double a city rental. One-way drop fees can reach hundreds of dollars, and drivers under 25 pay a surcharge. Liability cover in the base rate is low in many states — check before you decline the extra. In cities, parking costs more than the car on some days.

Coaches. Greyhound, FlixBus and Megabus are the cheapest intercity link where there is no useful rail. Some stops are kerbside in poorly lit areas, and long routes can run late, so avoid tight connections.

City transit and ride-hailing. Subways, light rail and buses cost US$2–3 a ride, and New York, Chicago, Boston, Washington and San Francisco accept contactless cards or phones. Los Angeles, Houston and most Sun Belt cities are thin outside a few corridors, so plan on Uber or Lyft: US$15–60 for a city trip, US$40–90+ to or from an airport, with surge pricing at peak times.

Do not try to see both coasts in one week. Two or three bases over 7–14 nights works; four cities in ten days means most of the trip is spent in transit.

Rental cars are the weak point of a car-free plan outside the big transit cities. If you are not driving, build the trip around the Northeast Corridor or a single city with good transit.

Tipping is expected on top of the fare: 15–20% for taxis and ride-hailing, in the app. It is not part of the transport price you see when you book.

Public toilets are scarce in big cities; use cafés, department stores, libraries and stations. Highway rest areas are free.

Federal holidays close offices, banks and post offices but national parks stay open, and some museums close on Mondays. Government shutdowns can close park facilities — check.