Cheap Flights to Longmont: Longmont Flight Deals

View €67 flight on Wed, 4 Feb 2026Opens in a new window

Popular airlines to Longmont

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Cheap round-trip flights to Longmont

Prices were available within the past 7 days and start at €67 for one-way flights and €131 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Sat, 7 Feb - Fri, 13 Feb
JFK
New York
DEN
Denver
€131 Return, found 1 hour ago
€131
Return
found 1 hour ago
Select JetBlue Airways flight, departing Sat, 7 Feb from New York to Denver, returning Fri, 13 Feb, priced at €131 found 1 hour ago
Delta
Wed, 4 Feb - Tue, 10 Feb
JFK
New York
DEN
Denver
€135 Return, found 1 day ago
€135
Return
found 1 day ago
Select Delta flight, departing Wed, 4 Feb from New York to Denver, returning Tue, 10 Feb, priced at €135 found 1 day ago
American Airlines
Thu, 29 Jan - Wed, 4 Feb
BOS
Boston
DEN
Denver
€136 Return, found 6 hours ago
€136
Return
found 6 hours ago
Select American Airlines flight, departing Thu, 29 Jan from Boston to Denver, returning Wed, 4 Feb, priced at €136 found 6 hours ago
United
Mon, 2 Feb - Tue, 10 Feb
BOS
Boston
DEN
Denver
€183 Return, found 1 day ago
€183
Return
found 1 day ago
Select United flight, departing Mon, 2 Feb from Boston to Denver, returning Tue, 10 Feb, priced at €183 found 1 day ago
British Airways
Mon, 9 Feb - Tue, 24 Feb
DUB
Dublin
DEN
Denver
€342 Return, found 21 hours ago
€342
Return
found 21 hours ago
Select British Airways flight, departing Mon, 9 Feb from Dublin to Denver, returning Tue, 24 Feb, priced at €342 found 21 hours ago

Find the cheapest month to fly from Columbus (CMH) to Denver (DEN)

October is typically the cheapest month to fly

From €99 - €191 per traveller.

Expedia.ie is an online travel company that specialises in securing the best prices for flights to Longmont. With Expedia you get highly specialised services, combining the best of technology, in-depth knowledge and the best connections in order to offer great deals to Longmont. Expedia shares your passion for travel and has built the best online travel service that promotes and encourages travel. Whether you are looking for cheap flights to Longmont, or are just on the lookout for the best flights to Longmont, you are sure to find the best deals with Expedia.ie.

"One of the many benefits of booking your flights through Expedia is that we are one of the world’s largest online travel agency, which means we use our collective experience and work tirelessly to bring you the best prices. With Expedia you get a user-friendly internet experience and a dedicated customer support service that ensures that everything goes smoothly. The goal of Expedia is to offer premium services at the lowest price, all at one single place. If you wish to save even more try combing a hotel in Longmont to your flight and create a personalised low cost city break or holiday to your favourite destination. Book early and you could save even more!

If you have an Expedia.ie itinerary number and have a question or concern about your travel plans you can call us on (01) 524 5005 from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends and an Expedia agent will help you.

Frequently asked questions

What is the name of Longmont's airport?
Denver Intl. Airport (DEN) is the main airport in Longmont.
What airport is best to fly into Longmont?
Head through the exit of Denver Airport and your Longmont getaway will have begun! The city's main airport, it's located 48 kilometres from the downtown area.
How many airlines fly to Longmont?
Longmont is serviced by 24 airlines from at least 204 airports around the world.
Which airlines fly to Longmont?
Southwest Airlines, United Airlines and Frontier Airlines fly the most frequently to Longmont. The highest number of flights begin in Phoenix, with Southwest Airlines offering the most services on this route.
How many nonstop flights are there to Longmont?
Organising an exciting Longmont adventure is a walk in the park when there are 5,892 direct flights each week to pick from.
Where are the most popular flights to Longmont departing from?
Flights to Longmont from Phoenix, Dallas and Salt Lake City airports are the most in demand.
How long is the flight to Longmont Airport?
If it's Phoenix you're departing, you'll be airborne for around 1 hour and 51 minutes before you touchdown in Longmont. Terminal to terminal from Dallas generally takes 2 hours and 10 minutes and from Salt Lake City, the average flight time is 1 hour and 40 minutes.
How to book the cheapest flight to Longmont?
We all know those fortunate jet-setters who manage to grab extremely cheap fares wherever they go. Would you like to know how to do it for your Longmont holiday? Don't wait until the last minute to lock in your flight. Another good way to nab a bargain is to compare all options. If your destination has more than one airport, don't forget to research the cost of flying into a smaller terminal. Last of all, be prepared to book quickly if you find an irresistible price. It might not be available for too long. With a bit of knowledge and some good fortune, the ideal airfare can be yours.
Do you have any tips for my flight to Longmont?
We've rounded up all the info you need to make your journey as stress-free as possible. Follow our tips and you'll be zooming through airport security and having a blast in Longmont in no time at all. What to pack in your hand luggage:

  • First things first, pack in your passport, important documents, bank cards and medications. Next, you'll want some extra in-flight entertainment to while away the hours. A juicy book and a laptop filled with your favourite movies are some fantastic options. If you plan to take a quick snooze, a neck pillow and a pair of earplugs will also be useful. Finally, make room for a toothbrush and some facial wipes so you'll touchdown looking fresh and ready to go.

Do not pack the following items in your hand luggage:

  • Make sure you don't have a Swiss Army knife hiding in one of the zippers of your carry-on luggage. Other prohibited items include flammable or explosive goods, such as aerosol cans and fuel, and liquids and gels in containers with a volume of more than 3.4 ounces (100 millilitres).

What to wear on a flight:

  • Go for comfort over style. Prepare for changes in cabin temperature by wearing layers, and wear closed-toe, flat footwear like sneakers.
  • Deep vein thrombosis (DVT) is a potential risk on long-haul flights. It's the result of blood clotting due to poor circulation, so do some gentle leg and foot exercises in your seat and consider wearing compression socks or tights.

How to get through airport security fast when flying to Longmont?
The simple answer is — be prepared. We've put together some helpful hints for a hassle-free trip through airport security. Watch out Longmont, here you come:

  • Be sure to keep your passport and travel documents handy. They're the first items you'll be asked for by security.
  • After that, both you and your carry-on bag will be X-rayed. To speed things up, take off anything that is likely to set the alarm off. Items like your belt, coat and headphones need to go through the machine.
  • All electronic devices, including your phone and tablet, are also required to be separately scanned.
  • Any gels or liquids, such as perfume or toothpaste, that you want to bring on board need to be in containers no larger than 3.4 ounces (100 millilitres). They must also all fit inside a quart-size (one litre), clear zip-close bag.
  • The right choice of footwear can save you several valuable minutes. Boots and heavy shoes are often required to be removed and separately scanned. Lightweight sneakers are usually not.
  • Sharp or pointed objects (like knives and scissors) are not allowed in the cabin. They'll be seized at security, so pack them in your checked baggage.

Flights to Longmont information
Destination airport
Denver Intl.
Destination airport IATA code
DEN
Destination city name
Denver
Return price
€131

Trending flights to Longmont

Prices were available within the past 7 days and start at €67 for one-way flights and €131 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Mon, 9 Feb - Tue, 24 Feb
DUB
Dublin
DEN
Denver
€342 Return, found 21 hours ago
€342
Return
found 21 hours ago
Select British Airways flight, departing Mon, 9 Feb from Dublin to Denver, returning Tue, 24 Feb, priced at €342 found 21 hours ago

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