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One Way Flights to Denver

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Why Alternative Airlines?

One Way Flights to Denver

Are you searching for one-way flights to Denver but not sure which airlines to fly with and where you can fly from? At Alternative Airlines, we're here to help. We'll show you how to book one-way flights to Denver as well as which airlines are popular to fly with and where you can fly from for a one-way flight to Denver.

One-way flights to Denver are flights that fly to Denver without a return flight being booked. Many travellers book one-way flights to Denver for several reasons, e.g. permanent relocation or wanting to be flexible with return dates. Booking a one-way ticket to Denver means you can have the freedom to return anytime you want.

Why Fly One Way to Denver

Denver, the capital of Colorado in the US, is a city rich with art and culture, a diverse population and a naturally beautiful landscape. It's known as the 'Mile-High City' as it sits approximately one mile above sea level. Denver sits east of the Rocky Mountains which means it's surrounded by beautiful scenery and also provides some of the best opportunities for skiing and mountain climbing in the world.

Denver gets around 300 days of sunshine in a year so it's safe to say that the weather is almost always pleasant. Summers can be hot but not humid so you can comfortably experience all that Denver has to offer, no matter how long you plan to stay. If you're a big fan of parks and trails, every neighbourhood in Denver pretty much has its own park - there are over 200 parks in the city to be exact.

There are so many more reasons why you should consider booking a one-way ticket to Denver, but we'd be here all day if we listed them all in this guide!

Denver International Airport

When flying one-way to Denver, you'll need to fly to Denver International Airport. This airport is the largest airport in North America by its land area. Denver International Airport is a hub for Frontier Airlines and United Airlines, both of which are major airline carriers that operate international and domestic flights to/from the US. You can fly to Denver International Airport from many major cities in the world including London, New York, Tokyo, Paris, Los Angeles, Frankfurt and Vancouver, among others.

How to Book One Way Flights to Denver

Booking one-way flights to Denver with Alternative Airlines is super simple! Follow our handy step-by-step guide below to see how you can book your one-way flights to Denver from any departure destination of your choice!


First, you'll need to navigate to our search form at the top of the page. Select the 'one-way' option if you wish to book a one-way flight without a return date. Enter your departure and arrival destinations (in this case, our arrival destination will be Denver International Airport), as well as how many passengers will be flying and the fare type you wish to purchase. Hit the 'Search Flights' button when you're ready!

Step 1 - How to book one way flights to Denver


Once the search results have loaded, you'll see all the available one-way routes to Denver from your chosen departure airport. If there is a particular airline you'd like to fly with, use the 'Airline' filter (e.g., select Delta Air Lines to display all one-way flights to Denver operated by Delta). You can also pick a specific time of departure or arrival, along with many other helpful filters.

Step 2 - How to book one way flights to Denver


After you've found the best flight for you, click on the 'Confirm Selection' button to proceed with your booking. You can secure your one-way flight to Denver with any of the 40+ ways to pay that we offer at Alternative Airlines, including popular Buy Now Pay Later plans like Afterpay and Affirm, as well as cryptocurrencies like Bitcoin and Ethereum.

Step 3 - How to book one way flights to Denver

Use our search form at the top of the page to begin your search for one-way flights to Denver.

Popular One Way Routes to Denver

Many airlines around the world offer one-way tickets to Denver from various different cities. Listed below are the busiest routes that airlines fly when flying one-way to Denver International Airport.

Houston ✈ to Denver

Cancún ✈ to Denver

San José del Cabo ✈ to Denver

Frankfurt ✈ to Denver

Toronto ✈ to Denver

Airlines Flying One Way to Denver

You can book one-way flights with any of the 650+ airlines we have available at Alternative Airlines. The airlines below operate frequent one-way flights to Denver International Airport:

Aeroméxico Mexico City
Air Canada Montréal, Toronto, Vancouver
Alaska Airlines Portland, Seattle
Allegiant Air Appleton, Cincinnati
American Airlines Austin, Charlotte, Chicago, Dallas/Fort Worth, Los Angeles, Miami, Philadelphia, Phoenix
American Eagle Los Angeles
British Airways London
Copa Airlines Panama City
Delta Air Lines Atlanta, Boston, Cincinnati, Detroit, Los Angeles, Minneapolis/St. Paul, New York, Salt Lake City, Seattle/Tacoma
Delta Connection Los Angeles, Seattle/Tacoma
Aerolíneas de frontera Atlanta, Austin, Cancún, Chicago, El Paso, Houston, Indianapolis, Las Vegas, Miami, New Orleans, Orlando, Phoenix, San Francisco and many more
JetBlue Boston, New York
lufthansa Frankfurt, Munich
Southwest Airlines Atlanta, Boston, Chicago, Houston, Los Angeles, Memphis, New York, Philadelphia, San Diego, Seattle, Tampa and many more
Spirit Airlines Atlanta, Baltimore, Chicago, Fort Lauderdale, Houston, Las Vegas, Miami, Los Angeles, Minneapolis
Sun Country Airlines Minneapolis
United Airlines
United Express
Atlanta, Boston, Calgary, Colorado, Detroit, Honolulu, Jacksonville, Las Vegas, London, Newark, Orlando, Pittsburgh, San Antonio, Tokyo and many more
Volaris Chihuahua, Guadalajara, Mexico City

Why Book One Way Flights

Below you'll find out more about why many travellers book one-way tickets instead of return tickets.

Cheaper Flights

Travellers often book one-way flights instead of return flights in order to save money. Round-trip flights can sometimes be more expensive than two single one-way tickets but this depends on the airline you're flying with and your destinations.

Greater Flexibility

When booking a one-way flight, you can choose to return back home on any date you wish, offering greater flexibility for your travel plans. If you do eventually want to return from your destination but are not sure what day you want to fly back, one-way tickets are the best option for you. You can book one-way flights back to your home or original departure destination after a few days, weeks or even months!


If you're relocating permanently to another city, county or country, you can purchase one-way tickets without having to worry about a return date.

One Way Flights to Denver

Where can I book one-way flights to Denver?

You can book your one-way flights to Denver right here at Alternative Airlines! Use our handy step-by-step guide from earlier which shows you how to use our flight search tool to look for all available one-way flights to Denver. You can even add security to your booking with Cancellation Protection and Baggage Insurance, only when you book through us!

Can I book one-way flights to Denver and pay later?

Yes! At Alternative Airlines, we have 40+ different ways for you to pay for your tickets, including popular Fly Now Pay Later payment methods such as Afterpay, Affirm and Klarna. These help you spread the cost of your one-way tickets to Denver over time so you can make payments on a weekly, bi-weekly or even monthly basis (depending on the plan you've chosen).

Are one-way flights to Denver expensive?

One-way flights to any destination can be either cheap or expensive, depending on the airline you fly with. If you're looking for cheap one-way tickets to Denver, we recommend flying with Frontier Airlines (an ultra-low-cost carrier based in the US). One-way flights can be expensive if you're flying a route to Denver that isn't frequently used (e.g., from Harrisburg or Belize City). It can often be cheaper to book two separate one-way flight tickets than it is to book a round-trip or return flight.

What is the difference between one-way and round-trip flights?

One-way flights are tickets that let you fly from one destination to another without a return flight booked. A round-trip ticket, also known as a return flight, means you fly from one airport to another on one day and then return to your original departure airport on a later date (e.g., flying from London to New York one day and flying from New York to London a week later).

Do I need a visa for one-way flights to Denver?

This depends on where you are travelling from and how long you plan to stay in Denver or the US. A travel visa is an official document that lets foreign travellers visit a particular country for a certain amount of time. Many travellers can stay for periods of 30 days, 90 days or even years without a travel visa however the rules vary per country.

Please read our guide on travel visas if you are looking to relocate to Denver or stay for a long period of time. We also recommend carrying out your own research on visa requirements that you'll need to follow.