The best bus, train, and airline companies for travel in the US
Your bus, train, and airline tickets from the best companies with Omio
Omio makes it easy to find and book tickets with all the best companies in the US. Whether you’re traveling by bus, train, or even on a major airline, we’ve got you covered. The Omio platform is designed with you in mind so you can compare and book the best flights, bus routes, and trains quickly and easily.
- E_tickets are a convenient and sustainable way to travel on most bus routes, trains, and airlines. Learn more about digital tickets through Omio here.
- Now it’s even easier to book your bus, train, and airline tickets by using the Omio app.
- Need help booking your ticket through Omio? Our Help Center is here for you.
- Looking for inspiration for your next big adventure? You can find tons of exciting ideas in our magazine Window Seat.
The main flight companies
Wherever you wish to visit in the United States, Omio has tickets for the best flights to get you there and back again with these airline carriers:
- American Airlines is the largest airline company in the world, with hubs in Dallas, New York, Los Angeles, Chicago, and Miami. American Airlines is part of the One World Alliance.
- United Airlines, with hubs in Chicago, Denver, Houston, and Newark, operates both domestically and internationally as part of the Star Alliance. United is the 3rd largest airline in the world.
- Spirit Airlines, based in Miramar, Florida, is the largest ultra_low_cost airline carrier in North America and provides inexpensive flights to destinations around the United States.
- Frontier Airlines provides low_cost flights to destinations around the United States as well as internationally. Frontier maintains hubs in Kansas City and Denver.
- Alaska Airlines, based in Seattle, operates primarily in the western United States, although it does offers flights to some destinations in Mexico, Canada, and South America. Alaska Airlines is the 5th largest carrier in the United States and maintains hubs in Los Angeles, Anchorage, and Portland.
All flight companies
Most important train companies
Generally speaking, traveling by train in the United States means taking Amtrak. You can book your ticket through Omio to arrive by train at stations in approximately 500 communities across the country. Amtrak trains operate in about 46 states domestically (along with the District of Columbia), as well as three provinces of Canada. Amtrak trains travel up to 150mph (241 km/h), offering passengers around 300 swift train trips each day.
All train companies

Flight Provider Plane. Source: Shutterstock
All bus companies in Omio
Traveling between cities in the United States by bus typically means riding on Greyhound. Greyhound Lines, based in Dallas, began more than 100 years ago in Minnesota, although it’s now a subsidiary of Germany’s Flixmobility. Greyhound buses serve more than 3,800 destinations across North America, making it the largest motorcoach company in the country.
Fostering more sustainable modes of transportation
Increasing numbers of travelers are seeking more sustainable means of transportation. Thankfully, it’s easy to find sustainable options that are just right for your needs when you book your bus, train, or airline tickets through Omio. For example, train rides have always been a sustainable means of transportation as taking the train reduces congestion on the highways and also reduces the amount of fossil fuels being used (which lessens greenhouse emissions). Amtrak has taken things even further, by purchasing more fuel_efficient locomotives for its fleet and also instituting expanded recycling programs for retired trains. This means less old carpet and seat covers making their way into landfills (not to mention old lightbulbs and foam cushions).
Traveling by bus is another smart move towards sustainability, as taking a bus can reduce your overall greenhouse emissions by up to 85% on your journey. Greyhound has committed to using newer, more fuel_efficient motorcoaches as well as reducing idling times to decrease fuel usage. Lastly, sustainable flights have become increasingly popular, with carriers like United and American updating their fleets to more efficient aircraft while also introducing major recycling programs to decrease waste. Additionally, Frontier Airlines has declared a goal of becoming “America’s Greenest Airline”, increasing fuel_efficiency by 43%, and launching a “green class” upgrade available to passengers which features more sustainable seating and dining options.
Save time traveling with night routes
The old saying “time is money” is as true now as ever, and when you choose to travel overnight by bus, train, or even on night flights, you can often save quite a bit of both. Amtrak trains will often travel overnight between distant destinations. In these cases, passengers can save travel time by having fewer connections or stops along the way.
Greyhound also offers overnight bus routes which include fewer stops, once again saving time. In both cases, savvy travelers will also notice that such overnight routes tend to be less expensive. Finally, airlines travel at all times of the day and night, depending on the popularity of the route. As with train and bus routes, flying overnight often means quicker travel with fewer connections.

Flight Provider. Source: Shutterstock
Companies for traveling: FAQs
1. Where can I buy my ticket?
2. Do I need to print my ticket?
3. Can I cancel my ticket?
4. Can I exchange my ticket?
5. Can I change the name on my ticket?
6. How many pieces/pounds (kilos) of luggage can I check on the bus, train, or airplane?
7. What are the services available for people with reduced mobility?
8. Are the buses, trains, and planes adapted to persons with restricted mobility?
9. Can children under age 18 travel by themselves?
10. Can I bring my bike on board?
11. Do I need a Covid test to travel?
