Travel guide & flights to United States
Capital: Washington, D.C. · Population: 333,000,000 · Currency: USD
Quick answer: United States at a glance
Travel to United States (US, capital Washington, D.C.) in Americas · North America, population 333,000,000, languages English, currency USD. Live flights are searchable on Kayak across 100+ sites; TripRoute indexes 12 routes arriving and 12 departing, with hotels searchable in Washington, D.C.. Browse routes below and book with free-cancellation filters.
- • Capital: Washington, D.C. · US/USA · 38, -97
- • Population: 333,000,000 · USD
- • 12 arriving · 12 departing flight routes
- • Language: English
Facts from REST Countries + OpenFlights flight_route data; fares update live on Kayak.
United States is the capital of America, and one of its largest cities.
Facts summarized from Wikipedia · CC BY-SA 3.0
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Languages spoken in United States
English
Flights to United States
12 popular routes arriving in United States. Click any route for live fares.
Flights from United States
12 popular routes departing from United States. Click any route for live fares.
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TRUnited States route network at a glance
TripRoute indexes 12 arriving and 12 departing routes for United States from the OpenFlights dataset. The longest arriving route on record is Sydney → Dallas-Fort Worth at roughly 8,580 miles great-circle distance. Fares are not stored — every route links to a live Kayak search across 100+ providers, so prices you see are current at search time.
Route facts from OpenFlights; fares update live on Kayak.
United States — quick answers
What is the capital of United States and how large is the country?
The capital of United States is Washington, D.C. and the country has about 333,000,000 people in 2026 according to the REST Countries dataset. United States lies in Americas (North America), uses USD and speaks English. The capital coordinates are 38, -97, and you can search live flights to United States on Kayak from any origin with prices compared across 100+ sites.
How do I find cheap flights to United States?
Find cheap flights to United States by clicking "Search flights to United States on Kayak" above, which opens Kayak with live comparison across 100+ airlines and booking sites. Compare flexible dates (±3 days) and nearby airports, as shifting departure by a day often saves $40–$120. TripRoute lists 12 arriving routes below you can click for live fares, distances and airline details.
What languages and currency will I need in United States?
In United States people primarily speak English, and the official currency is USD. The country is in Americas, North America with capital Washington, D.C.. This language and currency information comes from the REST Countries dataset verified against ISO 3166, so you can plan phrases and exchange before you fly — Kayak's fare search will show prices in your local currency regardless.
How many flight routes connect United States on TripRoute?
TripRoute indexes 12 routes arriving in United States and 12 departing, all from real OpenFlights flight_route data ordered by distance. Click any route like SYD → DFW (Sydney to Dallas-Fort Worth) for live Kayak fares with nonstop distances, flight times and airline competition insights. Even without indexed routes you can still search live inventory directly on Kayak.